beta 2013.02.05 13:35

43 files changed, 11306 insertions, 14082 deletions

diff --git a/context/data/scite/lexers/scite-context-lexer-cld.lua b/context/data/scite/lexers/scite-context-lexer-cld.lua
index 4aa2901d2..1e30c18a2 100644
--- a/context/data/scite/lexers/scite-context-lexer-cld.lua
+++ b/context/data/scite/lexers/scite-context-lexer-cld.lua
@@ -7,7 +7,6 @@ local info = {
 }
 
 local lexer = lexer
-local token = lexer.token
 
 local cldlexer   = { _NAME = "cld", _FILENAME = "scite-context-lexer-cld" }
 local whitespace = lexer.WHITESPACE -- maybe we need to fix this
diff --git a/context/data/scite/lexers/scite-context-lexer-lua-longstring.lua b/context/data/scite/lexers/scite-context-lexer-lua-longstring.lua
index 26bdb8dbc..fdec301be 100644
--- a/context/data/scite/lexers/scite-context-lexer-lua-longstring.lua
+++ b/context/data/scite/lexers/scite-context-lexer-lua-longstring.lua
@@ -1,3 +1,11 @@
+local info = {
+    version   = 1.002,
+    comment   = "scintilla lpeg lexer for lua",
+    author    = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
+    copyright = "PRAGMA ADE / ConTeXt Development Team",
+    license   = "see context related readme files",
+}
+
 local lexer = lexer
 local token = lexer.token
 local P = lpeg.P
diff --git a/context/data/scite/lexers/scite-context-lexer-lua.lua b/context/data/scite/lexers/scite-context-lexer-lua.lua
index e8a52c991..e95d90977 100644
--- a/context/data/scite/lexers/scite-context-lexer-lua.lua
+++ b/context/data/scite/lexers/scite-context-lexer-lua.lua
@@ -189,7 +189,6 @@ lualexer._rules = {
     { 'number',       number       },
     { 'longcomment',  longcomment  },
     { 'shortcomment', shortcomment },
---  { 'number',       number       },
     { 'label',        gotolabel    },
     { 'operator',     operator     },
     { 'rest',         rest         },
@@ -243,28 +242,30 @@ lualexer._rules = {
 
 lualexer._tokenstyles = context.styleset
 
+-- lualexer._foldpattern = R("az")^2 + S("{}[]") -- separate entry else interference
+
+lualexer._foldpattern = (P("end") + P("if") + P("do") + P("function") + P("repeat") + P("until")) * P(#(1 - R("az")))
+                      + S("{}[]")
+
 lualexer._foldsymbols = {
     _patterns = {
-     -- '%l+', -- costly
-     -- '%l%l+',
         '[a-z][a-z]+',
-     -- '[%({%)}%[%]]',
         '[{}%[%]]',
     },
     ['keyword'] = { -- challenge:  if=0  then=1  else=-1  elseif=-1
-        ['if']       =  1,
-        ['end']      = -1,
-        ['do']       =  1,
-        ['function'] =  1,
-        ['repeat']   =  1,
+        ['if']       =  1, -- if .. [then|else] .. end
+        ['do']       =  1, -- [while] do .. end
+        ['function'] =  1, -- function .. end
+        ['repeat']   =  1, -- repeat .. until
         ['until']    = -1,
+        ['end']      = -1,
       },
     ['comment'] = {
         ['['] = 1, [']'] = -1,
     },
-    ['quote'] = { -- to be tested
-        ['['] = 1, [']'] = -1,
-    },
+ -- ['quote'] = { -- confusing
+ --     ['['] = 1, [']'] = -1,
+ -- },
     ['special'] = {
      -- ['('] = 1, [')'] = -1,
         ['{'] = 1, ['}'] = -1,
diff --git a/context/data/scite/lexers/scite-context-lexer-mps.lua b/context/data/scite/lexers/scite-context-lexer-mps.lua
index 27a2e2979..96c5e9c3c 100644
--- a/context/data/scite/lexers/scite-context-lexer-mps.lua
+++ b/context/data/scite/lexers/scite-context-lexer-mps.lua
@@ -129,9 +129,11 @@ metafunlexer._rules = {
 
 metafunlexer._tokenstyles = context.styleset
 
+metafunlexer._foldpattern = R("az")^2 -- separate entry else interference
+
 metafunlexer._foldsymbols = {
     _patterns = {
-        "%l+",
+        '[a-z][a-z]+',
     },
     ["primitive"] = {
         ["beginfig"]      =  1,
diff --git a/context/data/scite/lexers/scite-context-lexer-tex.lua b/context/data/scite/lexers/scite-context-lexer-tex.lua
index 4e8fba8e7..898602f03 100644
--- a/context/data/scite/lexers/scite-context-lexer-tex.lua
+++ b/context/data/scite/lexers/scite-context-lexer-tex.lua
@@ -241,13 +241,15 @@ local p_unit                 = P("pt") + P("bp") + P("sp") + P("mm") + P("cm") +
 --     if validwords then
 --         return checkedword(validwords,validminimum,s,i)
 --     else
---         return true, { "text", i }
+--      -- return true, { "text", i }
+--         return true, "text", i
 --     end
 -- end)
 --
 -- So we use this one instead:
 
-local p_word = Ct( iwordpattern / function(s) return styleofword(validwords,validminimum,s) end * Cp() ) -- the function can be inlined
+----- p_word = Ct( iwordpattern / function(s) return styleofword(validwords,validminimum,s) end * Cp() ) -- the function can be inlined
+local p_word =  iwordpattern / function(s) return styleofword(validwords,validminimum,s) end * Cp() -- the function can be inlined
 
 ----- p_text = (1 - p_grouping - p_special - p_extra - backslash - space + hspace)^1
 
@@ -460,22 +462,33 @@ contextlexer._tokenstyles = context.styleset
 -- contextlexer._tokenstyles[#contextlexer._tokenstyles + 1] = { cldlexer._NAME..'_whitespace', lexer.style_whitespace }
 -- contextlexer._tokenstyles[#contextlexer._tokenstyles + 1] = { mpslexer._NAME..'_whitespace', lexer.style_whitespace }
 
+local environment = {
+    ["\\start"] = 1, ["\\stop"] = -1,
+ -- ["\\begin"] = 1, ["\\end" ] = -1,
+}
+
+-- local block = {
+--     ["\\begin"] = 1, ["\\end" ] = -1,
+-- }
 
-local folds = {
-    ["\\start"] = 1, ["\\stop" ] = -1,
-    ["\\begin"] = 1, ["\\end"  ] = -1,
+local group = {
+    ["{"] = 1, ["}"] = -1,
 }
 
-contextlexer._foldsymbols = {
+contextlexer._foldpattern = P("\\" ) * (P("start") + P("stop")) + S("{}") -- separate entry else interference
+
+contextlexer._foldsymbols = { -- these need to be style references
     _patterns    = {
         "\\start", "\\stop", -- regular environments
-        "\\begin", "\\end",  -- (moveable) blocks
+     -- "\\begin", "\\end",  -- (moveable) blocks
+        "[{}]",
     },
-    ["helper"]   = folds,
-    ["data"]   = folds,
-    ["command"]  = folds,
-    ["user"]     = folds, -- csname
-    ["grouping"] = folds,
+    ["command"]  = environment,
+    ["constant"] = environment,
+    ["data"]     = environment,
+    ["user"]     = environment,
+    ["embedded"] = environment,
+    ["grouping"] = group,
 }
 
 return contextlexer
diff --git a/context/data/scite/lexers/scite-context-lexer-txt.lua b/context/data/scite/lexers/scite-context-lexer-txt.lua
index 4c4742d54..fe062fb94 100644
--- a/context/data/scite/lexers/scite-context-lexer-txt.lua
+++ b/context/data/scite/lexers/scite-context-lexer-txt.lua
@@ -54,7 +54,8 @@ local t_preamble =
     token("preamble", p_preamble)
 
 local t_word =
-    Ct( wordpattern / function(s) return styleofword(validwords,validminimum,s) end * Cp() ) -- the function can be inlined
+--  Ct( wordpattern / function(s) return styleofword(validwords,validminimum,s) end * Cp() ) -- the function can be inlined
+    wordpattern / function(s) return styleofword(validwords,validminimum,s) end * Cp() -- the function can be inlined
 
 local t_text =
     token("default", wordtoken^1)
@@ -73,6 +74,7 @@ textlexer._rules = {
     { "rest",       t_rest     },
 }
 
+textlexer._LEXBYLINE   = true -- new (needs testing, not yet as the system changed in 3.24)
 textlexer._tokenstyles = context.styleset
 
 return textlexer
diff --git a/context/data/scite/lexers/scite-context-lexer-web.lua b/context/data/scite/lexers/scite-context-lexer-web.lua
index 72068ccb2..f59a3205d 100644
--- a/context/data/scite/lexers/scite-context-lexer-web.lua
+++ b/context/data/scite/lexers/scite-context-lexer-web.lua
@@ -99,7 +99,7 @@ local endweb        = P("@c")
 
 local webcomment    = token("comment", #beginweb * startofline * beginweb * (1-endweb)^0 * endweb)
 
-local texlexer       = lexer.load('scite-context-lexer-tex')
+local texlexer      = lexer.load('scite-context-lexer-tex')
 
 lexer.embed_lexer(weblexer, texlexer, #beginweb * startofline * token("comment",beginweb), token("comment",endweb))
 
@@ -121,30 +121,35 @@ weblexer._rules = {
 
 weblexer._tokenstyles = context.styleset
 
--- weblexer._foldsymbols = {
---     _patterns = {
---      -- '%l+', -- costly
---         '[{}]',
---         '/%*',
---         '%*/',
---      -- '//',
---     },
---     ["macro"] = {
---         ['region']    =  1,
---         ['endregion'] = -1,
---         ['if']        =  1,
---         ['ifdef']     =  1,
---         ['ifndef']    =  1,
---         ['endif']     = -1,
---     },
---     ["operator"] = {
---         ['{'] =  1,
---         ['}'] = -1,
---     },
---     ["comment"] = {
---         ['/*'] =  1,
---         ['*/'] = -1,
---     }
--- }
+weblexer._foldpattern = P("/*") + P("*/") + S("{}") -- separate entry else interference
+
+weblexer._foldsymbols = {
+    _patterns = {
+        '[{}]',
+        '/%*',
+        '%*/',
+    },
+ -- ["data"] = { -- macro
+ --     ['region']    =  1,
+ --     ['endregion'] = -1,
+ --     ['if']        =  1,
+ --     ['ifdef']     =  1,
+ --     ['ifndef']    =  1,
+ --     ['endif']     = -1,
+ -- },
+    ["special"] = { -- operator
+        ['{'] =  1,
+        ['}'] = -1,
+    },
+    ["comment"] = {
+        ['/*'] =  1,
+        ['*/'] = -1,
+    }
+}
+
+-- -- by indentation:
+--
+weblexer._foldpatterns = nil
+weblexer._foldsymbols  = nil
 
 return weblexer
diff --git a/context/data/scite/lexers/scite-context-lexer-xml-comment.lua b/context/data/scite/lexers/scite-context-lexer-xml-comment.lua
index eab3b2a61..104310f94 100644
--- a/context/data/scite/lexers/scite-context-lexer-xml-comment.lua
+++ b/context/data/scite/lexers/scite-context-lexer-xml-comment.lua
@@ -27,12 +27,15 @@ xmlcommentlexer._rules = {
 
 xmlcommentlexer._tokenstyles = context.styleset
 
+xmlcommentlexer._foldpattern = P("<!--") + P("-->")
+
 xmlcommentlexer._foldsymbols = {
     _patterns = {
         "<%!%-%-", "%-%->", -- comments
     },
     ["comment"] = {
-        ["<!--"] = 1, ["-->" ] = -1,
+        ["<!--"] = 1,
+        ["-->" ] = -1,
     }
 }
 
diff --git a/context/data/scite/lexers/scite-context-lexer-xml.lua b/context/data/scite/lexers/scite-context-lexer-xml.lua
index 40c46f20a..9d5199a64 100644
--- a/context/data/scite/lexers/scite-context-lexer-xml.lua
+++ b/context/data/scite/lexers/scite-context-lexer-xml.lua
@@ -95,7 +95,8 @@ local p_preamble = Cmt(#P("<?xml "), function(input,i,_) -- todo: utf bomb
 end)
 
 local p_word =
-    Ct( iwordpattern / function(s) return styleofword(validwords,validminimum,s) end * Cp() ) -- the function can be inlined
+--     Ct( iwordpattern / function(s) return styleofword(validwords,validminimum,s) end * Cp() ) -- the function can be inlined
+    iwordpattern / function(s) return styleofword(validwords,validminimum,s) end * Cp() -- the function can be inlined
 
 local p_rest =
     token("default", any)
@@ -303,9 +304,9 @@ xmllexer._rules = {
     { "whitespace",  p_spacing     },
     { "preamble",    p_preamble    },
     { "word",        p_word        },
---  { "text",        p_text        },
---  { "comment",     p_comment     },
---  { "cdata",       p_cdata       },
+ -- { "text",        p_text        },
+ -- { "comment",     p_comment     },
+ -- { "cdata",       p_cdata       },
     { "doctype",     p_doctype     },
     { "instruction", p_instruction },
     { "close",       p_close       },
@@ -317,12 +318,18 @@ xmllexer._rules = {
 
 xmllexer._tokenstyles = context.styleset
 
+xmllexer._foldpattern = P("</") + P("<") + P("/>") -- separate entry else interference
+
 xmllexer._foldsymbols = { -- somehow doesn't work yet
     _patterns = {
-        "[<>]",
+        "</",
+        "/>",
+        "<",
     },
     ["keyword"] = {
-        ["<"] = 1, [">"] = -1,
+        ["</"] = -1,
+        ["/>"] = -1,
+        ["<"]  =  1,
     },
 }
 
diff --git a/context/data/scite/lexers/scite-context-lexer.lua b/context/data/scite/lexers/scite-context-lexer.lua
index 27d7bd37e..7883177b4 100644
--- a/context/data/scite/lexers/scite-context-lexer.lua
+++ b/context/data/scite/lexers/scite-context-lexer.lua
@@ -1,5 +1,5 @@
 local info = {
-    version   = 1.002,
+    version   = 1.324,
     comment   = "basics for scintilla lpeg lexer for context/metafun",
     author    = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
     copyright = "PRAGMA ADE / ConTeXt Development Team",
@@ -8,6 +8,12 @@ local info = {
 
 }
 
+-- todo: move all code here
+-- todo: explore adapted dll ... properties + init
+
+-- The fold and lex functions are copied and patched from original code by Mitchell (see
+-- lexer.lua). All errors are mine.
+--
 -- Starting with SciTE version 3.20 there is an issue with coloring. As we still lack
 -- a connection with scite itself (properties as well as printing to the log pane) we
 -- cannot trace this (on windows). As far as I can see, there are no fundamental
@@ -16,9 +22,11 @@ local info = {
 -- Lua lexer and no brace highlighting either. Interesting is that it does work ok in
 -- the cld lexer (so the Lua code is okay). Also the fact that char-def.lua lexes fast
 -- is a signal that the lexer quits somewhere halfway.
-
--- The fold and lex functions are copied and patched from original code by Mitchell (see
--- lexer.lua). All errors are mine.
+--
+-- After checking 3.24 and adapting to the new lexer tables things are okay again. So,
+-- this version assumes 3.24 or higher. In 3.24 we have a different token result, i.e. no
+-- longer a { tag, pattern } but just two return values. I didn't check other changes but
+-- will do that when I run into issues.
 --
 -- I've considered making a whole copy and patch the other functions too as we need
 -- an extra nesting model. However, I don't want to maintain too much. An unfortunate
@@ -38,7 +46,8 @@ local info = {
 -- and the cursor is at the last line of a 200K line file. Optimizing the fold function
 -- brought down loading of char-def.lua from 14 sec => 8 sec. Replacing the word_match
 -- function and optimizing the lex function gained another 2+ seconds. A 6 second load
--- is quite ok for me.
+-- is quite ok for me. The changed lexer table structure (no subtables) brings loading
+-- down to a few seconds.
 --
 -- When the lexer path is copied to the textadept lexer path, and the theme definition to
 -- theme path (as lexer.lua), the lexer works there as well. When I have time and motive
@@ -61,7 +70,7 @@ local info = {
 --
 -- Eventually it might be safer to copy the other methods from lexer.lua here as well so
 -- that we have no dependencies, apart from the c library (for which at some point the api
--- will be stable I guess).
+-- will be stable I hope).
 --
 -- It's a pitty that there is no scintillua library for the OSX version of scite. Even
 -- better would be to have the scintillua library as integral part of scite as that way I
@@ -73,7 +82,7 @@ local info = {
 
 local lpeg = require 'lpeg'
 
-local R, P, S, C, V, Cp, Cs, Ct, Cmt, Cc, Cf, Cg = lpeg.R, lpeg.P, lpeg.S, lpeg.C, lpeg.V, lpeg.Cp, lpeg.Cs, lpeg.Ct, lpeg.Cmt, lpeg.Cc, lpeg.Cf, lpeg.Cg
+local R, P, S, C, V, Cp, Cs, Ct, Cmt, Cc, Cf, Cg, Carg = lpeg.R, lpeg.P, lpeg.S, lpeg.C, lpeg.V, lpeg.Cp, lpeg.Cs, lpeg.Ct, lpeg.Cmt, lpeg.Cc, lpeg.Cf, lpeg.Cg, lpeg.Carg
 local lpegmatch = lpeg.match
 local find, gmatch, match, lower, upper, gsub = string.find, string.gmatch, string.match, string.lower, string.upper, string.gsub
 local concat = table.concat
@@ -259,26 +268,53 @@ end
 patterns.wordtoken   = R("az","AZ","\127\255")
 patterns.wordpattern = patterns.wordtoken^3 -- todo: if limit and #s < limit then
 
+-- -- pre 3.24:
+--
+-- function context.checkedword(validwords,validminimum,s,i) -- ,limit
+--     if not validwords then -- or #s < validminimum then
+--         return true, { "text", i } -- { "default", i }
+--     else
+--         -- keys are lower
+--         local word = validwords[s]
+--         if word == s then
+--             return true, { "okay", i } -- exact match
+--         elseif word then
+--             return true, { "warning", i } -- case issue
+--         else
+--             local word = validwords[lower(s)]
+--             if word == s then
+--                 return true, { "okay", i } -- exact match
+--             elseif word then
+--                 return true, { "warning", i } -- case issue
+--             elseif upper(s) == s then
+--                 return true, { "warning", i } -- probably a logo or acronym
+--             else
+--                 return true, { "error", i }
+--             end
+--         end
+--     end
+-- end
+
 function context.checkedword(validwords,validminimum,s,i) -- ,limit
     if not validwords then -- or #s < validminimum then
-        return true, { "text", i } -- { "default", i }
+        return true, "text", i -- { "default", i }
     else
         -- keys are lower
         local word = validwords[s]
         if word == s then
-            return true, { "okay", i } -- exact match
+            return true, "okay", i -- exact match
         elseif word then
-            return true, { "warning", i } -- case issue
+            return true, "warning", i -- case issue
         else
             local word = validwords[lower(s)]
             if word == s then
-                return true, { "okay", i } -- exact match
+                return true, "okay", i -- exact match
             elseif word then
-                return true, { "warning", i } -- case issue
+                return true, "warning", i -- case issue
             elseif upper(s) == s then
-                return true, { "warning", i } -- probably a logo or acronym
+                return true, "warning", i -- probably a logo or acronym
             else
-                return true, { "error", i }
+                return true, "error", i
             end
         end
     end
@@ -325,29 +361,57 @@ setmetatable(h_table, { __index = function(t,level) local v = { level, FOLD_HEAD
 setmetatable(b_table, { __index = function(t,level) local v = { level, FOLD_BLANK  } t[level] = v return v end })
 setmetatable(n_table, { __index = function(t,level) local v = { level              } t[level] = v return v end })
 
--- local newline    = P("\r\n") + S("\r\n")
--- local splitlines = Ct( ( Ct ( (Cp() * Cs((1-newline)^1) * newline^-1) + (Cp() * Cc("") * newline) ) )^0)
+-- -- todo: move the local functions outside (see below) .. old variant < 3.24
 --
--- local lines = lpegmatch(splitlines,text) -- iterating over lines is faster
--- for i=1, #lines do
---     local li = lines[i]
---     local line = li[2]
---     if line ~= "" then
---         local pos = li[1]
+-- local newline = P("\r\n") + S("\r\n")
+-- local p_yes   = Cp() * Cs((1-newline)^1) * newline^-1
+-- local p_nop   = newline
+--
+-- local function fold_by_parsing(text,start_pos,start_line,start_level,lexer)
+--     local foldsymbols = lexer._foldsymbols
+--     if not foldsymbols then
+--         return { }
+--     end
+--     local patterns = foldsymbols._patterns
+--     if not patterns then
+--         return { }
+--     end
+--     local nofpatterns = #patterns
+--     if nofpatterns == 0 then
+--         return { }
+--     end
+--     local folds = { }
+--     local line_num = start_line
+--     local prev_level = start_level
+--     local current_level = prev_level
+--     local validmatches = foldsymbols._validmatches
+--     if not validmatches then
+--         validmatches = { }
+--         for symbol, matches in next, foldsymbols do -- whatever = { start = 1, stop = -1 }
+--             if not find(symbol,"^_") then -- brrr
+--                 for s, _ in next, matches do
+--                     validmatches[s] = true
+--                 end
+--             end
+--         end
+--         foldsymbols._validmatches = validmatches
+--     end
+--     -- of course we could instead build a nice lpeg checker .. something for
+--     -- a rainy day with a stack of new cd's at hand
+--     local function action_y(pos,line)
 --         for i=1,nofpatterns do
 --             for s, m in gmatch(line,patterns[i]) do
---                 if hash[m] then
---                     local symbols = fold_symbols[get_style_at(start_pos + pos + s - 1)]
+--                 if validmatches[m] then
+--                     local symbols = foldsymbols[get_style_at(start_pos + pos + s - 1)]
 --                     if symbols then
---                         local l = symbols[m]
---                         if l then
---                             local t = type(l)
---                             if t == 'number' then
---                                 current_level = current_level + l
---                             elseif t == 'function' then
---                                 current_level = current_level + l(text, pos, line, s, match)
+--                         local action = symbols[m]
+--                         if action then
+--                             if type(action) == 'number' then -- we could store this in validmatches if there was only one symbol category
+--                                 current_level = current_level + action
+--                             else
+--                                 current_level = current_level + action(text,pos,line,s,m)
 --                             end
---                             if current_level < FOLD_BASE then -- integrate in previous
+--                             if current_level < FOLD_BASE then
 --                                 current_level = FOLD_BASE
 --                             end
 --                         end
@@ -361,128 +425,298 @@ setmetatable(n_table, { __index = function(t,level) local v = { level
 --             folds[line_num] = n_table[prev_level] -- { prev_level }
 --         end
 --         prev_level = current_level
---     else
+--         line_num = line_num + 1
+--     end
+--     local function action_n()
 --         folds[line_num] = b_table[prev_level] -- { prev_level, FOLD_BLANK }
+--         line_num = line_num + 1
+--     end
+--     if lexer._reset_parser then
+--         lexer._reset_parser()
 --     end
---     line_num = line_num + 1
+--     local lpegpattern = (p_yes/action_y + p_nop/action_n)^0 -- not too efficient but indirect function calls are neither but
+--     lpegmatch(lpegpattern,text)                             -- keys are not pressed that fast ... large files are slow anyway
+--     return folds
 -- end
 
+-- The 3.24 variant; no longer subtable optimization is needed:
+
 local newline = P("\r\n") + S("\r\n")
 local p_yes   = Cp() * Cs((1-newline)^1) * newline^-1
 local p_nop   = newline
 
+local folders = { }
+
 local function fold_by_parsing(text,start_pos,start_line,start_level,lexer)
-    local foldsymbols = lexer._foldsymbols
-    if not foldsymbols then
-        return { }
-    end
-    local patterns = foldsymbols._patterns
-    if not patterns then
-        return { }
-    end
-    local nofpatterns = #patterns
-    if nofpatterns == 0 then
-        return { }
-    end
-    local folds = { }
-    local line_num = start_line
-    local prev_level = start_level
-    local current_level = prev_level
-    local validmatches = foldsymbols._validmatches
-    if not validmatches then
-        validmatches = { }
-        for symbol, matches in next, foldsymbols do -- whatever = { start = 1, stop = -1 }
-            if not find(symbol,"^_") then -- brrr
-                for s, _ in next, matches do
-                    validmatches[s] = true
+    local folder = folders[lexer]
+    if not folder then
+        --
+        local pattern, folds, text, start_pos, line_num, prev_level, current_level
+        --
+        local fold_symbols = lexer._foldsymbols
+        local fold_pattern = lexer._foldpattern -- use lpeg instead (context extension)
+        --
+        if fold_pattern then
+            -- if no functions are found then we could have a faster one
+
+         -- fold_pattern = Cp() * C(fold_pattern) * Carg(1) / function(s,match,pos)
+         --     local symbols = fold_symbols[get_style_at(start_pos + pos + s - 1)]
+         --     local l = symbols and symbols[match]
+         --     if l then
+         --         local t = type(l)
+         --         if t == 'number' then
+         --             current_level = current_level + l
+         --         elseif t == 'function' then
+         --             current_level = current_level + l(text, pos, line, s, match)
+         --         end
+         --     end
+         -- end
+         -- fold_pattern = (fold_pattern + P(1))^0
+         -- local action_y = function(pos,line)
+         --     lpegmatch(fold_pattern,line,1,pos)
+         --     folds[line_num] = prev_level
+         --     if current_level > prev_level then
+         --         folds[line_num] = prev_level + FOLD_HEADER
+         --     end
+         --     if current_level < FOLD_BASE then
+         --         current_level = FOLD_BASE
+         --     end
+         --     prev_level = current_level
+         --     line_num = line_num + 1
+         -- end
+         -- local action_n = function()
+         --     folds[line_num] = prev_level + FOLD_BLANK
+         --     line_num = line_num + 1
+         -- end
+         -- pattern = (p_yes/action_y + p_nop/action_n)^0
+
+            fold_pattern = Cp() * C(fold_pattern) / function(s,match)
+                local symbols = fold_symbols[get_style_at(start_pos + s)]
+                if symbols then
+                    local l = symbols[match]
+                    if l then
+                        current_level = current_level + l
+                    end
                 end
             end
-        end
-        foldsymbols._validmatches = validmatches
-    end
-    local function action_y(pos,line) -- we can consider moving the local functions outside (drawback: folds is kept)
-        for i=1,nofpatterns do
-            for s, m in gmatch(line,patterns[i]) do
-                if validmatches[m] then
-                    local symbols = foldsymbols[get_style_at(start_pos + pos + s - 1)]
-                    if symbols then
-                        local action = symbols[m]
-                        if action then
-                            if type(action) == 'number' then -- we could store this in validmatches if there was only one symbol category
-                                current_level = current_level + action
-                            else
-                                current_level = current_level + action(text,pos,line,s,m)
-                            end
-                            if current_level < FOLD_BASE then
-                                current_level = FOLD_BASE
-                            end
+            local action_y = function()
+                folds[line_num] = prev_level
+                if current_level > prev_level then
+                    folds[line_num] = prev_level + FOLD_HEADER
+                end
+                if current_level < FOLD_BASE then
+                    current_level = FOLD_BASE
+                end
+                prev_level = current_level
+                line_num = line_num + 1
+            end
+            local action_n = function()
+                folds[line_num] = prev_level + FOLD_BLANK
+                line_num = line_num + 1
+            end
+            pattern = ((fold_pattern + (1-newline))^1 * newline / action_y + newline/action_n)^0
+
+         else
+            -- the traditional one but a bit optimized
+            local fold_symbols_patterns = fold_symbols._patterns
+            local action_y = function(pos,line)
+                for j = 1, #fold_symbols_patterns do
+                    for s, match in gmatch(line,fold_symbols_patterns[j]) do -- '()('..patterns[i]..')'
+                        local symbols = fold_symbols[get_style_at(start_pos + pos + s - 1)]
+                        local l = symbols and symbols[match]
+                        local t = type(l)
+                        if t == 'number' then
+                            current_level = current_level + l
+                        elseif t == 'function' then
+                            current_level = current_level + l(text, pos, line, s, match)
                         end
                     end
                 end
+                folds[line_num] = prev_level
+                if current_level > prev_level then
+                    folds[line_num] = prev_level + FOLD_HEADER
+                end
+                if current_level < FOLD_BASE then
+                    current_level = FOLD_BASE
+                end
+                prev_level = current_level
+                line_num = line_num + 1
+            end
+            local action_n = function()
+                folds[line_num] = prev_level + FOLD_BLANK
+                line_num = line_num + 1
             end
+            pattern = (p_yes/action_y + p_nop/action_n)^0
         end
-        if current_level > prev_level then
-            folds[line_num] = h_table[prev_level] -- { prev_level, FOLD_HEADER }
-        else
-            folds[line_num] = n_table[prev_level] -- { prev_level }
+        --
+        local reset_parser = lexer._reset_parser
+        --
+        folder = function(_text_,_start_pos_,_start_line_,_start_level_)
+            if reset_parser then
+                reset_parser()
+            end
+            folds         = { }
+            text          = _text_
+            start_pos     = _start_pos_
+            line_num      = _start_line_
+            prev_level    = _start_level_
+            current_level = prev_level
+            lpegmatch(pattern,text)
+--             return folds
+local t = folds
+folds = nil
+return t -- so folds can be collected
         end
-        prev_level = current_level
-        line_num = line_num + 1
-    end
-    local function action_n()
-        folds[line_num] = b_table[prev_level] -- { prev_level, FOLD_BLANK }
-        line_num = line_num + 1
-    end
-    if lexer._reset_parser then
-        lexer._reset_parser()
+        folders[lexer] = folder
     end
-    local lpegpattern = (p_yes/action_y + p_nop/action_n)^0 -- not too efficient but indirect function calls are neither but
-    lpegmatch(lpegpattern,text)                             -- keys are not pressed that fast ... large files are slow anyway
-    return folds
+    return folder(text,start_pos,start_line,start_level,lexer)
 end
 
-local function fold_by_indentation(text,start_pos,start_line,start_level)
-    local folds = { }
-    local current_line = start_line
-    local prev_level = start_level
-    for _, line in gmatch(text,'([\t ]*)(.-)\r?\n') do
-        if line ~= "" then
-            local current_level = FOLD_BASE + get_indent_amount(current_line)
-            if current_level > prev_level then -- next level
-                local i = current_line - 1
-                while true do
-                    local f = folds[i]
-                    if f and f[2] == FOLD_BLANK then
-                        i = i - 1
-                    else
-                        break
-                    end
-                end
-                local f = folds[i]
-                if f then
-                    f[2] = FOLD_HEADER
-                end -- low indent
-                folds[current_line] = n_table[current_level] -- { current_level } -- high indent
-            elseif current_level < prev_level then -- prev level
-                local f = folds[current_line - 1]
-                if f then
-                    f[1] = prev_level -- high indent
-                end
-                folds[current_line] = n_table[current_level] -- { current_level } -- low indent
-            else -- same level
-                folds[current_line] = n_table[prev_level] -- { prev_level }
+-- local function fold_by_indentation(text,start_pos,start_line,start_level)
+--     local folds = { }
+--     local current_line = start_line
+--     local prev_level = start_level
+--     for line in gmatch(text,'[\t ]*(.-)\r?\n') do
+--         if line ~= "" then
+--             local current_level = FOLD_BASE + get_indent_amount(current_line)
+--             if current_level > prev_level then -- next level
+--                 local i = current_line - 1
+--                 while true do
+--                     local f = folds[i]
+--                     if f and f[2] == FOLD_BLANK then
+--                         i = i - 1
+--                     else
+--                         break
+--                     end
+--                 end
+--                 local f = folds[i]
+--                 if f then
+--                     f[2] = FOLD_HEADER
+--                 end -- low indent
+--                 folds[current_line] = n_table[current_level] -- { current_level } -- high indent
+--             elseif current_level < prev_level then -- prev level
+--                 local f = folds[current_line - 1]
+--                 if f then
+--                     f[1] = prev_level -- high indent
+--                 end
+--                 folds[current_line] = n_table[current_level] -- { current_level } -- low indent
+--             else -- same level
+--                 folds[current_line] = n_table[prev_level] -- { prev_level }
+--             end
+--             prev_level = current_level
+--         else
+--             folds[current_line] = b_table[prev_level] -- { prev_level, FOLD_BLANK }
+--         end
+--         current_line = current_line + 1
+--     end
+--     return folds
+-- end
+
+-- local function fold_by_indentation(text,start_pos,start_line,start_level)
+--     local folds = { }
+--     local current_line = start_line
+--     local prev_level = start_level
+--     for line in gmatch(text,'[\t ]*(.-)\r?\n') do
+--         if line ~= '' then
+--             local current_level = FOLD_BASE + get_indent_amount(current_line)
+--             if current_level > prev_level then -- next level
+--                 local i = current_line - 1
+--                 local f
+--                 while true do
+--                     f = folds[i]
+--                     if not f then
+--                         break
+--                     elseif f[2] == FOLD_BLANK then
+--                         i = i - 1
+--                     else
+--                         f[2] = FOLD_HEADER -- low indent
+--                         break
+--                     end
+--                 end
+--                 folds[current_line] = { current_level } -- high indent
+--             elseif current_level < prev_level then -- prev level
+--                 local f = folds[current_line - 1]
+--                 if f then
+--                     f[1] = prev_level -- high indent
+--                 end
+--                 folds[current_line] = { current_level } -- low indent
+--             else -- same level
+--                 folds[current_line] = { prev_level }
+--             end
+--             prev_level = current_level
+--         else
+--             folds[current_line] = { prev_level, FOLD_BLANK }
+--         end
+--         current_line = current_line + 1
+--     end
+--     for line, level in next, folds do
+--         folds[line] = level[1] + (level[2] or 0)
+--     end
+--     return folds
+-- end
+
+local folds, current_line, prev_level
+
+local function action_y()
+    local current_level = FOLD_BASE + get_indent_amount(current_line)
+    if current_level > prev_level then -- next level
+        local i = current_line - 1
+        local f
+        while true do
+            f = folds[i]
+            if not f then
+                break
+            elseif f[2] == FOLD_BLANK then
+                i = i - 1
+            else
+                f[2] = FOLD_HEADER -- low indent
+                break
             end
-            prev_level = current_level
-        else
-            folds[current_line] = b_table[prev_level] -- { prev_level, FOLD_BLANK }
         end
-        current_line = current_line + 1
+        folds[current_line] = { current_level } -- high indent
+    elseif current_level < prev_level then -- prev level
+        local f = folds[current_line - 1]
+        if f then
+            f[1] = prev_level -- high indent
+        end
+        folds[current_line] = { current_level } -- low indent
+    else -- same level
+        folds[current_line] = { prev_level }
     end
-    return folds
+    prev_level = current_level
+    current_line = current_line + 1
+end
+
+local function action_n()
+    folds[current_line] = { prev_level, FOLD_BLANK }
+    current_line = current_line + 1
+end
+
+local pattern = ( S("\t ")^0 * ( (1-S("\n\r"))^1 / action_y + P(true) / action_n) * newline )^0
+
+local function fold_by_indentation(text,start_pos,start_line,start_level)
+    -- initialize
+    folds        = { }
+    current_line = start_line
+    prev_level   = start_level
+    -- define
+    -- -- not here .. pattern binds and local functions are not frozen
+    -- analyze
+    lpegmatch(pattern,text)
+    -- flatten
+    for line, level in next, folds do
+        folds[line] = level[1] + (level[2] or 0)
+    end
+    -- done
+--     return folds
+local t = folds
+folds = nil
+return t -- so folds can be collected
 end
 
 local function fold_by_line(text,start_pos,start_line,start_level)
     local folds = { }
+    -- can also be lpeg'd
     for _ in gmatch(text,".-\r?\n") do
         folds[start_line] = n_table[start_level] -- { start_level }
         start_line = start_line + 1
@@ -507,7 +741,7 @@ function context.fold(text,start_pos,start_line,start_level) -- hm, we had size
         if filesize <= threshold_by_lexer then
             return fold_by_lexer(text,start_pos,start_line,start_level,lexer)
         end
-    elseif fold_by_symbols and get_property('fold.by.parsing',1) > 0 then
+    elseif fold_by_symbols then -- and get_property('fold.by.parsing',1) > 0 then
         if filesize <= threshold_by_parsing then
             return fold_by_parsing(text,start_pos,start_line,start_level,lexer)
         end
@@ -595,6 +829,10 @@ local function build_grammar(lexer, initial_rule)
 end
 
 -- so far. We need these local functions in the next one.
+--
+-- Before 3.24 we had tokens[..] = { category, position }, now it's a two values.
+
+local lineparsers = { }
 
 function context.lex(text,init_style)
     local lexer = global._LEXER
@@ -605,50 +843,75 @@ function context.lex(text,init_style)
         local tokens = { }
         local offset = 0
         local noftokens = 0
-        if true then
-            for line in gmatch(text,'[^\r\n]*\r?\n?') do -- could be an lpeg
-                local line_tokens = lpegmatch(grammar,line)
+     -- -- pre 3.24
+     --
+     -- for line in gmatch(text,'[^\r\n]*\r?\n?') do -- could be an lpeg
+     --     local line_tokens = lpegmatch(grammar,line)
+     --     if line_tokens then
+     --         for i=1,#line_tokens do
+     --             local token = line_tokens[i]
+     --             token[2] = token[2] + offset
+     --             noftokens = noftokens + 1
+     --             tokens[noftokens] = token
+     --         end
+     --     end
+     --     offset = offset + #line
+     --     if noftokens > 0 and tokens[noftokens][2] ~= offset then
+     --         noftokens = noftokens + 1
+     --         tokens[noftokens] = { 'default', offset + 1 }
+     --     end
+     -- end
+
+     -- for line in gmatch(text,'[^\r\n]*\r?\n?') do
+     --     local line_tokens = lpegmatch(grammar,line)
+     --     if line_tokens then
+     --         for i=1,#line_tokens,2 do
+     --             noftokens = noftokens + 1
+     --             tokens[noftokens] = line_tokens[i]
+     --             noftokens = noftokens + 1
+     --             tokens[noftokens] = line_tokens[i + 1] + offset
+     --         end
+     --     end
+     --     offset = offset + #line
+     --     if noftokens > 0 and tokens[noftokens] ~= offset then
+     --         noftokens = noftokens + 1
+     --         tokens[noftokens] = 'default'
+     --         noftokens = noftokens + 1
+     --         tokens[noftokens] = offset + 1
+     --     end
+     -- end
+
+        local lineparser = lineparsers[lexer]
+        if not lineparser then -- probably a cmt is more efficient
+            lineparser = C((1-newline)^0 * newline) / function(line)
+                local length = #line
+                local line_tokens = length > 0 and lpegmatch(grammar,line)
                 if line_tokens then
-                    for i=1,#line_tokens do
-                        local token = line_tokens[i]
-                        token[2] = token[2] + offset
+                    for i=1,#line_tokens,2 do
                         noftokens = noftokens + 1
-                        tokens[noftokens] = token
-                    end
-                end
-                offset = offset + #line
-                if noftokens > 0 and tokens[noftokens][2] ~= offset then
-                    noftokens = noftokens + 1
-                    tokens[noftokens] = { 'default', offset + 1 }
-                end
-            end
-        else -- alternative
-            local lasttoken, lastoffset
-            for line in gmatch(text,'[^\r\n]*\r?\n?') do -- could be an lpeg
-                local line_tokens = lpegmatch(grammar,line)
-                if line_tokens then
-                    for i=1,#line_tokens do
-                        lasttoken = line_tokens[i]
-                        lastoffset = lasttoken[2] + offset
-                        lasttoken[2] = lastoffset
+                        tokens[noftokens] = line_tokens[i]
                         noftokens = noftokens + 1
-                        tokens[noftokens] = lasttoken
+                        tokens[noftokens] = line_tokens[i + 1] + offset
                     end
                 end
-                offset = offset + #line
-                if lastoffset ~= offset then
-                    lastoffset = offset + 1
-                    lasttoken = { 'default', lastoffset }
+                offset = offset + length
+                if noftokens > 0 and tokens[noftokens] ~= offset then
+                    noftokens = noftokens + 1
+                    tokens[noftokens] = 'default'
                     noftokens = noftokens + 1
-                    tokens[noftokens] = lasttoken
+                    tokens[noftokens] = offset + 1
                 end
             end
+            lineparser = lineparser^0
+            lineparsers[lexer] = lineparser
         end
+        lpegmatch(lineparser,text)
         return tokens
+
     elseif lexer._CHILDREN then
         -- as we cannot print, tracing is not possible ... this might change as we can as well
         -- generate them all in one go (sharing as much as possible)
-        local _hash = lexer._HASH
+        local hash = lexer._HASH -- hm, was _hash
         if not hash then
             hash = { }
             lexer._HASH = hash
@@ -684,8 +947,14 @@ end
 
 -- todo: keywords: one lookup and multiple matches
 
+-- function context.token(name, patt)
+--     return Ct(patt * Cc(name) * Cp())
+-- end
+--
+-- -- hm, changed in 3.24 .. no longer a table
+
 function context.token(name, patt)
-    return Ct(patt * Cc(name) * Cp())
+    return patt * Cc(name) * Cp()
 end
 
 lexer.fold        = context.fold
diff --git a/context/data/scite/lexers/themes/scite-context-theme.lua b/context/data/scite/lexers/themes/scite-context-theme.lua
index 7b305d3e5..e32fe9dee 100644
--- a/context/data/scite/lexers/themes/scite-context-theme.lua
+++ b/context/data/scite/lexers/themes/scite-context-theme.lua
@@ -107,7 +107,6 @@ local style_tag         = style { fore = colors.cyan }
 ----- style_standout    = style { fore = colors.orange, bold = true }
 local style_command     = style { fore = colors.green, bold = true }
 local style_internal    = style { fore = colors.orange, bold = true }
-local style_internal    = style { fore = colors.orange, bold = true }
 
 local style_preamble    = style { fore = colors.yellow }
 local style_grouping    = style { fore = colors.red  }
diff --git a/context/data/scite/scite-context-data-interfaces.properties b/context/data/scite/scite-context-data-interfaces.properties
index e3ca49319..e698ce6c4 100644
--- a/context/data/scite/scite-context-data-interfaces.properties
+++ b/context/data/scite/scite-context-data-interfaces.properties
@@ -1,161 +1,315 @@
-keywordclass.context.de=\
-Buchstabe Buchstaben CAP Cap \
-Caps KAP Kap Kaps MONAT \
-Roemischezahlen WOCHENTAG WOERTER WORT Woerter \
-Wort Ziffern abstandlinkerrand abstandoben abstandrechterrand \
-abstandunten amgitterausrichten amgitterneuausrichten appendix arg \
-atleftmargin atrightmargin aufseite ausfuellfeld ausfuelltext \
-ausschnitt bearbeitebloecke bearbeiteseite bedeutung behaltebloecke \
-bei bemerkung benutzekodierung benutzespezielles benutzeverzeichnis \
-beschrifteversion beschriftung bestimmekopfnummer bestimmelistencharakeristika bestimmeregistercharakteristika \
-bildschirm blanko bookmark bottomspace breitelinkerrand \
-breiterechterrand bruch buchstabe buchstaben but \
-bypassblocks cap chapter chem comment \
-completecombinedlist completelistoffloats completelistofsorts completelistofsynonyms completepagenumber \
-completeregister coupledregister crlf cutspace datum \
-decrementnumber definebodyfontDEF definebodyfontREF definecolumnbreak definecolumnset \
-definecombination definedfont definefontfeature definefonthandling defineindentedtext \
-defineinmargin defineitemgroup definelayer definelayout definemathalignment \
-defineoutput definepagebreak defineplacement definerawfont definerule \
-defineschriftsynonym definetextposition definetextvariable definetype definetypeface \
-definiereabbsymbol definiereabsaetze definiereabschnitt definiereabschnittsblock definiereakzent \
-definierebefehl definierebeschreibung definierebeschreibungen definierebeschriftung definiereblanko \
-definiereblock definierefarbe definierefarbengruppe definierefeld definierefeldstapel \
-definierefliesstext definierefliesstextumgebung definieregleitobjekt definierehauptfeld definierehbox \
-definiereinteraktionsmenue definierekonversion definierelabel definiereliste definierelogo \
-definieren definierenummerierung definiereoverlay definierepalette definierepapierformat \
-definiereprofil definiereprogramme definierepuffer definierereferenz definierereferenzformat \
-definierereferenzliste definiereregister definiereschrift definiereschriftstil definieresortieren \
-definierestartstop definierestil definieresubfeld definieresymbol definieresynonyme \
-definieretabellenvorlage definieretabulator definieretext definieretippen definiereueberschrift \
-definiereumbruch definiereumrahmt definiereumrahmtertext definiereversion definierezeichen \
-definierezusammengestellteliste description dimension doppelseite doppelseitigespapier \
-drehen duennelinie duennerumriss einezeile einstellungen \
-einziehen emptylines entknuepfebeschriftung enumeration externeabbildung \
-farbbalken farbe farbewert feld feldstapel \
-festesspatium folgeprofil folgeprofilversion folgeversion footnotetext \
-forceblocks format formelnummer framedtext fussnote \
-fusszeileabstand fusszeilenhoehe gefuelltesrechteck gefuelltezeile geg \
-gesamtseitenanzahl gestreckt getnumber gitter graufarbe \
-grauwert haarlinie hauptsprache headsym heutigesdatum \
-heutigeskopfnummer hintergrund hl hoch hoeheoben \
-hoeheunten holebeschriftung holepuffer imlinken imlinkenrand \
-immaumrise immediatebetweenlist immediatetolist imrechten imrechtenrand \
-imumriss in inaktiviereinteraktionsmenue inanderermarginale indentation \
-ininner inlinkermarginale inmarginalie inneredgedistance inneredgewidth \
-innermargindistance innermarginwidth inouter inrechtermarginale installieresprache \
-interaktionsbalken interaktionsknopfe interaktionsmenue inzeile irgendwo \
-its kap keindimension keinebeschriftung keinebloeckemehr \
-keinedateienmehr keinekopfundfusszeilen keineliste keinspatium keintest \
-keinzeilenobenundunten keinzwischenraum kleinerdurchschuss klonierefeld knopf \
-komponente konvertierezahl kopf kopfniveau kopfnummer \
-kopfweite kopfzeilenabstand kopfzeilenhoehe kopierefeld korrigierezwischenraum \
-label labeling labels labeltext leg \
-liniendicke linkemarginalafstand linkemarginalbreite linksbuendig listenbreite \
-listenhoehe listenlaenge listsymbol loadsorts loadsynonyms \
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+setupanswerarea setuparranging setupbackground setupbackgrounds setupblackrules \
+setupblank setupblock setupbodyfont setupbodyfontenvironment setupbottom \
+setupbottomtexts setupbuffer setupbuttons setupcapitals setupcaption \
+setupcaptions setupclipping setupcolor setupcolors setupcolumns \
+setupcolumnset setupcolumnsetlines setupcolumnsetstart setupcombinations setupcombinedlist \
+setupcomment setupdescriptions setupenumerations setupexternalfigures setupfield \
+setupfields setupfillinlines setupfillinrules setupfloat setupfloats \
+setupfloatsplitting setupfonthandling setupfontsynonym setupfooter setupfootertexts \
+setupfootnotedefinition setupfootnotes setupforms setupformulae setupframed \
+setupframedtexts setuphead setupheader setupheadertexts setupheadnumber \
+setupheads setupheadtext setuphyphenmark setupindentedtext setupindenting \
+setupinmargin setupinteraction setupinteractionbar setupinteractionmenu setupinteractionscreen \
+setupinterlinespace setupinterlinespace2 setupitemgroup setupitemizations setupitems \
+setuplabeltext setuplanguage setuplayout setuplegend setuplinenumbering \
+setuplines setuplinewidth setuplist setuplistalternative setupmakeup \
+setupmarginblocks setupmarginrules setupmarking setupmathalignment setupnarrower \
+setupnumber setupnumbering setupoppositeplacing setupoutput setuppagecomment \
+setuppagenumber setuppagenumbering setuppagetransitions setuppalet setuppaper \
+setuppapersize setupparagraphnumbering setupparagraphs setupplacement setuppositioning \
+setupprofiles setupprograms setuppublications setupquote setupreferencelist \
+setupreferencing setupregister setuprotate setuprule setups \
+setupscreens setupsection setupsectionblock setupsorting setupspacing \
+setupstartstop setupstrut setupsubpagenumber setupsymbolset setupsynchronization \
+setupsynchronizationbar setupsynonyms setupsystem setuptab setuptables \
+setuptabulate setuptext setuptextposition setuptextrules setuptexttexts \
+setuptextvariable setupthinrules setuptolerance setuptop setuptoptexts \
+setuptype setuptyping setupunderbar setupurl setupversions \
+setupwhitespace showbodyfont showbodyfontenvironment showcolor showcolorgroup \
+showexternalfigures showfields showframe showgrid showlayout \
+showmakeup showpalet showprint showsetups showstruts \
+showsymbolset someline somewhere sort space \
+splitfloat startalignment startbackground startbuffer startcoding \
+startcolor startcolumnmakeup startcolumns startcolumnset startcombination \
+startcomment startcomponent startdescription startdocument startenumeration \
+startenvironment startfact startfigure startfloattext startformula \
+startframedtext startglobal starthiding startinteractionmenu startitemgroup \
+startlegend startline startlinecorrection startlinenumbering startlines \
+startlocal startlocalenvironment startlocalfootnotes startmakeup startmarginblock \
+startmarginrule startnamemakeup startnarrower startopposite startoverlay \
+startoverview startpacked startparagraph startpositioning startpostponing \
+startproduct startprofile startproject startquotation startraster \
+startregister startsymbolset startsynchronization starttable starttables \
+starttabulate starttext starttextrule starttyping startunpacked \
+startversion stopalignment stopbackground stopbuffer stopcoding \
+stopcolor stopcolumnmakeup stopcolumns stopcolumnset stopcombination \
+stopcomment stopcomponent stopdescription stopdocument stopenumeration \
+stopenvironment stopfact stopfigure stopfloattext stopformula \
+stopframedtext stopglobal stophiding stopinteractionmenu stopitemgroup \
+stoplegend stopline stoplinecorrection stoplinenumbering stoplines \
+stoplocal stoplocalenvironment stoplocalfootnotes stopmakeup stopmarginblock \
+stopmarginrule stopnamemakeup stopnarrower stopopposite stopoverlay \
+stopoverview stoppacked stopparagraph stoppositioning stoppostponing \
+stopproduct stopprofile stopproject stopquotation stopraster \
+stopsymbolset stopsynchronization stoptable stoptables stoptabulate \
+stoptext stoptextrule stoptyping stopunpacked stopversion \
+stretched sub subformulanumber subject subpagenumber \
+subsection subsubject subsubsection subsubsubject switchtobodyfont \
+switchtorawfont sym symbol symoffset synchronizationbar \
+synchronize synonym tab testcolumn testpage \
+tex textheight textreference textrule textvariable \
+textwidth thinrule thinrules title tooltip \
+topdistance topheight topspace totalnumberofpages translate \
+txt typ type typebuffer typefile \
+underbar underbars unitmeaning unknown useJSscripts \
+useURL useXMLfilter useblocks usecommands usedirectory \
+useencoding useexternaldocument useexternalfigure useexternalfile useexternalfiles \
+useexternalsoundtrack usemodule usemodules usereferences usespecials \
+usesymbols usetypescript usetypescriptfile useurl version \
+vl weekday whitespace wordright writebetweenlist \
+writetolist writetoreferencelist writetoregister 
 
 keywordclass.context.cs=\
 CAP Cap Caps Cisla \
@@ -317,6 +471,325 @@ ziskejbuffer ziskejznaceni zlomek znaceni znak \
 znaky zpracujbloky zpracujstranu zrcadlit zref \
 zvysujicicislo 
 
+keywordclass.context.nl=\
+CAP Cap Caps Cijfers \
+KAP Kap Kaps Letter Letters \
+MAAND Romeins WEEKDAG WOORD WOORDEN \
+Woord Woorden aantalsubpaginas about achtergrond \
+appendix arg bepaalkopnummer bepaallijstkenmerken bepaalregisterkenmerken \
+betekenis binnenmargeafstand binnenmargebreedte binnenrandafstand binnenrandbreedte \
+blanko blokje blokjes blokkeerinteractiemenu bodemwit \
+bookmark bovenafstand bovenhoogte breuk buitenmargeafstand \
+buitenmargebreedte buitenrandafstand buitenrandbreedte but button \
+cap chapter chem cijfers citaat \
+citeer clip comment completecombinedlist completelistoffloats \
+completelistofsorts completelistofsynonyms converteernummer copieerveld corrigeerwitruimte \
+coupledregister crlf datum definebodyfontDEF definebodyfontREF \
+definedfont definefontfeature definefonthandling definerawfont definetypeface \
+definieer definieeraccent definieeralineas definieerbeeldmerk definieerblanko \
+definieerblok definieerbuffer definieercombinatie definieercommando definieerconversie \
+definieerfiguursymbool definieerfont definieerfontstijl definieerfontsynoniem definieerhbox \
+definieerhoofdveld definieeringesprongentext definieerinmarge definieerinteractiemenu definieeritemgroep \
+definieerkadertekst definieerkarakter definieerkleur definieerkleurgroep definieerkolomgroep \
+definieerkolomovergang definieerkop definieerkorps definieerkorpsomgeving definieerlayer \
+definieerlayout definieerletter definieerlijn definieerlijst definieermarkering \
+definieeromlijnd definieeropmaak definieeroverlay definieerpaginaovergang definieerpalet \
+definieerpapierformaat definieerplaats definieerplaatsblok definieerprofiel definieerprogramma \
+definieerreferentie definieerreferentieformaat definieerreferentielijst definieerregister definieersamengesteldelijst \
+definieersectie definieersectieblok definieersorteren definieerstartstop definieersubveld \
+definieersymbool definieersynoniemen definieertabelvorm definieertabulatie definieertekst \
+definieertekstpositie definieertekstvariabele definieertype definieertypen definieeruitvoer \
+definieerveld definieerveldstapel definieerversie definieerwiskundeuitlijnen description \
+dimensie directnaarlijst directtussenlijst doordefinieren doorlabelen \
+doornummeren dunnelijn dunnelijnen eenregel enumeration \
+ergens externfiguur forceerblokken formulenummer framedtext \
+gebruikJSscripts gebruikURL gebruikXMLfilter gebruikblokken gebruikcommandos \
+gebruikexterndocument gebruikexternefile gebruikexternefiles gebruikexternfiguur gebruikexterngeluidsfragment \
+gebruikgebied gebruikmodule gebruikmodules gebruikreferenties gebruikspecials \
+gebruiksymbolen gebruiktypescript gebruiktypescriptfile gebruikurl geenblokkenmeer \
+geenbovenenonderregels geendimensie geenfilesmeer geenhoofdenvoetregels geenlijst \
+geenmarkering geenspatie geentest geenwitruimte geg \
+grijskleur grijswaarde haalbuffer haalmarkering haalnummer \
+haarlijn handhaafblokken herhaal hl hoofdafstand \
+hoofdhoogte hoofdtaal hoog huidigedatum huidigekopnummer \
+in inanderemarge inbinnen inbuiten indentation \
+inlijnd inlinker inlinkermarge inlinkerrand inmarge \
+inrechter inrechtermarge inrechterrand inregel inspringen \
+installeertaal instellingen interactiebalk interactiebuttons interactiemenu \
+invullijnen invulregel invultekst invulveld inwilijnd \
+items its kantlijn kap kenmerk \
+kenmerkdatum kentekstvariabeletoe kleur kleurenbalk kleurwaarde \
+kloonveld kolom kop kopniveau kopnummer \
+koppeldocument koppelmarkering koppelpagina koppelpapier koppelregister \
+kopsym koptekst kopwit laag label \
+labeling labels labeltekst laho leg \
+legeregels letter letters lijndikte lijstbreedte \
+lijsthoogte lijstlengte lijstsymbool linkermargeafstand linkermargebreedte \
+linkerrandafstand linkerrandbreedte loadsorts loadsynonyms maand \
+mapfontsize mar margeafstand margebreedte margetekst \
+margetitel margewoord markeer markeerversie mediaeval \
+menubutton naam naar naarbox naarpagina \
+name navigerend nextsection nietinspringen nocap \
+nokap noot nop omgeving omlaag \
+omlijnd onbekend onderafstand onderdeel onderhoogte \
+ontkoppelmarkering op opelkaar oplinkermarge oppagina \
+oprechtermarge overbar overbars overstrike overstrikes \
+pagina paginadiepte paginanummer paginaoffset paginareferentie \
+papierbreedte papierhoogte paragraph part paslayoutaan \
+passeerblokken passendveld plaatsbeeldmerken plaatsbookmarks plaatsformule \
+plaatskopnummer plaatskoptekst plaatslegenda plaatslijn plaatslijst \
+plaatslokalevoetnoten plaatsnaastelkaar plaatsonderelkaar plaatsopgrid plaatspaginanummer \
+plaatsplaatsblok plaatsreferentielijst plaatsregister plaatsruwelijst plaatssamengesteldelijst \
+plaatssubformule plaatstekstvariabele plaatsvoetnoten placelistoffloats placelistofsorts \
+placelistofsynonyms positioneer positioneertekst printpapierbreedte printpapierhoogte \
+produkt programma projekt publicatie punten \
+ran randafstand randbreedte rechtermargeafstand rechtermargebreedte \
+rechterrandafstand rechterrandbreedte ref refereer referentie \
+regellinks regelmidden regelrechts register registreervelden \
+reservefloat reset resetmarkering resetnummer resettekstinhoud \
+resettextcontent romeins rooster roteer rugwit \
+schaal scherm schrijfnaarlijst schrijfnaarreferentielijst schrijfnaarregister \
+schrijftussenlijst section seeregister selecteerblokken selecteerpapier \
+selecteerversie setnummer setupfonthandling setupfontsynonym setupinterlinespace2 \
+setuplistalternative snijwit som sort spatie \
+spiegel splitsplaatsblok startachtergrond startalignment startbuffer \
+startcitaat startcodering startcolumns startcombinatie startcombination \
+startcomment startdescription startdocument startenumeration startfigure \
+startfiguur startfloattext startformula startframedtext startgeg \
+startglobaal starthiding startinteractiemenu startitemgroup startkantlijn \
+startkleur startkolomgroep startkolommen startkolomopmaak startlegend \
+startline startlinecorrection startlinenumbering startlines startlocal \
+startlocalenvironment startlocalfootnotes startlokaal startlokalevoetnoten startmakeup \
+startmargeblok startmarginblock startnaast startnamemakeup startnarrower \
+startomgeving startonderdeel startopelkaar startopmaak startopposite \
+startoverlay startoverview startoverzicht startparagraph startpositioneren \
+startpositioning startpostponing startprodukt startprofiel startprofile \
+startprojekt startraster startregel startregelcorrectie startregelnummeren \
+startregels startregister startsmaller startsymbolset startsymboolset \
+startsynchronisatie startsynchronization starttabel starttabellen starttable \
+starttables starttabulate starttekst starttekstlijn starttyping \
+startuitlijnen startunpacked startvanelkaar startversie stelachtergrondenin \
+stelachtergrondin stelalineasin stelantwoordgebiedin stelarrangerenin stelblankoin \
+stelblokin stelblokjesin stelblokkopjein stelblokkopjesin stelbovenin \
+stelboventekstenin stelbufferin stelbuttonsin stelciterenin stelclipin \
+stelcombinatiesin stelcommentaarin steldoordefinierenin steldoornummerenin steldunnelijnenin \
+stelexternefigurenin stelformulesin stelformulierenin stelhoofdin stelhoofdtekstenin \
+stelingesprongentextin stelinmargein stelinspringenin stelinteractiebalkin stelinteractiein \
+stelinteractiemenuin stelinteractieschermin stelinterliniein stelinvullijnenin stelinvulregelsin \
+stelitemgroepin stelitemsin stelkadertekstenin stelkantlijnin stelkapitalenin \
+stelkleurenin stelkleurin stelkolomgroepin stelkolomgroepregelsin stelkolomgroepstartin \
+stelkolommenin stelkopin stelkopnummerin stelkoppeltekenin stelkoppenin \
+stelkoptekstin stelkorpsin stelkorpsomgevingin stellabeltekstin stellayoutin \
+stellegendain stellijndiktein stellijnin stellijstin stelmargeblokkenin \
+stelmarkeringin stelnaastplaatsenin stelnummerenin stelnummerin stelomlijndin \
+stelonderin stelonderstrepenin stelondertekstenin stelopmaakin stelopsommingenin \
+stelpaginacommentaarin stelpaginanummerin stelpaginanummeringin stelpaginaovergangenin stelpaletin \
+stelpapierformaatin stelpapierin stelparagraafnummerenin stelplaatsblokin stelplaatsblokkenin \
+stelplaatsbloksplitsenin stelplaatsin stelpositionerenin stelprofielenin stelprogrammasin \
+stelpublicatiesin stelrastersin stelreferentielijstin stelrefererenin stelregelnummerenin \
+stelregelsin stelregisterin stelroterenin stelsamengesteldelijstin stelsectieblokin \
+stelsectiein stelsmallerin stelsorterenin stelspatieringin stelstartstopin \
+stelstrutin stelsubpaginanummerin stelsymboolsetin stelsynchronisatiebalkin stelsynchronisatiein \
+stelsynoniemenin stelsysteemin steltaalin steltabellenin steltabin \
+steltabulatiein steltekstin steltekstinhoudin steltekstlijnenin steltekstpositiein \
+stelteksttekstenin steltekstvariabelein steltolerantiein steltypein steltypenin \
+steluitlijnenin steluitvoerin stelurlin stelveldenin stelveldin \
+stelversiesin stelvoetin stelvoetnootdefinitiein stelvoetnotenin stelvoettekstenin \
+stelwiskundeuitlijnenin stelwitruimtein stopachtergrond stopalignment stopbuffer \
+stopcitaat stopcodering stopcolumns stopcombinatie stopcombination \
+stopcomment stopdescription stopdocument stopenumeration stopfigure \
+stopfloattext stopformula stopframedtext stopgeg stopglobaal \
+stophiding stopinteractiemenu stopitemgroup stopkantlijn stopkleur \
+stopkolomgroep stopkolommen stopkolomopmaak stoplegend stopline \
+stoplinecorrection stoplinenumbering stoplines stoplocal stoplocalenvironment \
+stoplocalfootnotes stoplokaal stoplokalevoetnoten stopmakeup stopmargeblok \
+stopmarginblock stopnaast stopnamemakeup stopnarrower stopomgeving \
+stoponderdeel stopopelkaar stopopmaak stopopposite stopoverlay \
+stopoverview stopoverzicht stopparagraph stoppositioneren stoppositioning \
+stoppostponing stopprodukt stopprofiel stopprofile stopprojekt \
+stopraster stopregel stopregelcorrectie stopregelnummeren stopregels \
+stopsmaller stopsymbolset stopsynchronisatie stopsynchronization stoptabel \
+stoptabellen stoptable stoptables stoptabulate stoptekst \
+stoptekstlijn stoptyping stopuitlijnen stopunpacked stopvanelkaar \
+stopversie sub subformulenummer subject subpaginanummer \
+subsection subsubject subsubsection subsubsubject suggestie \
+switchnaarkorps switchtorawfont sym symbool symoffset \
+synchronisatiebalk synchroniseer synonym taal tab \
+tekstbreedte teksthoogte tekstlijn tekstreferentie tekstvariabele \
+testkolom testpagina tex title toelichting \
+toonexternefiguren toongrid tooninstellingen toonkader toonkleur \
+toonkleurgroep toonkorps toonkorpsomgeving toonlayout toonopmaak \
+toonpalet toonprint toonstruts toonsymboolset toonvelden \
+totaalaantalpaginas txt typ type typebuffer \
+typefile uit uitgerekt underbar underbars \
+usecodering usedirectory vastespatie vastespaties veld \
+veldstapel verbergblokken vergelijkkleurgroep vergelijkpalet verhoognummer \
+verlaagnummer verplaatsformule verplaatsopgrid verplaatszijblok versie \
+vertaal verwerkblokken verwerkpagina vl voetafstand \
+voethoogte voetnoot voetnoottekst volgprofiel volgprofielversie \
+volgversie volledigepaginanummer volledigregister voluit weekdag \
+wilijnd wiskunde witruimte woonplaats woordrechts \
+zetbreedte zethoogte 
+
+keywordclass.context.de=\
+Buchstabe Buchstaben CAP Cap \
+Caps KAP Kap Kaps MONAT \
+Roemischezahlen WOCHENTAG WOERTER WORT Woerter \
+Wort Ziffern abstandlinkerrand abstandoben abstandrechterrand \
+abstandunten amgitterausrichten amgitterneuausrichten appendix arg \
+atleftmargin atrightmargin aufseite ausfuellfeld ausfuelltext \
+ausschnitt bearbeitebloecke bearbeiteseite bedeutung behaltebloecke \
+bei bemerkung benutzekodierung benutzespezielles benutzeverzeichnis \
+beschrifteversion beschriftung bestimmekopfnummer bestimmelistencharakeristika bestimmeregistercharakteristika \
+bildschirm blanko bookmark bottomspace breitelinkerrand \
+breiterechterrand bruch buchstabe buchstaben but \
+bypassblocks cap chapter chem comment \
+completecombinedlist completelistoffloats completelistofsorts completelistofsynonyms completepagenumber \
+completeregister coupledregister crlf cutspace datum \
+decrementnumber definebodyfontDEF definebodyfontREF definecolumnbreak definecolumnset \
+definecombination definedfont definefontfeature definefonthandling defineindentedtext \
+defineinmargin defineitemgroup definelayer definelayout definemathalignment \
+defineoutput definepagebreak defineplacement definerawfont definerule \
+defineschriftsynonym definetextposition definetextvariable definetype definetypeface \
+definiereabbsymbol definiereabsaetze definiereabschnitt definiereabschnittsblock definiereakzent \
+definierebefehl definierebeschreibung definierebeschreibungen definierebeschriftung definiereblanko \
+definiereblock definierefarbe definierefarbengruppe definierefeld definierefeldstapel \
+definierefliesstext definierefliesstextumgebung definieregleitobjekt definierehauptfeld definierehbox \
+definiereinteraktionsmenue definierekonversion definierelabel definiereliste definierelogo \
+definieren definierenummerierung definiereoverlay definierepalette definierepapierformat \
+definiereprofil definiereprogramme definierepuffer definierereferenz definierereferenzformat \
+definierereferenzliste definiereregister definiereschrift definiereschriftstil definieresortieren \
+definierestartstop definierestil definieresubfeld definieresymbol definieresynonyme \
+definieretabellenvorlage definieretabulator definieretext definieretippen definiereueberschrift \
+definiereumbruch definiereumrahmt definiereumrahmtertext definiereversion definierezeichen \
+definierezusammengestellteliste description dimension doppelseite doppelseitigespapier \
+drehen duennelinie duennerumriss einezeile einstellungen \
+einziehen emptylines entknuepfebeschriftung enumeration externeabbildung \
+farbbalken farbe farbewert feld feldstapel \
+festesspatium folgeprofil folgeprofilversion folgeversion footnotetext \
+forceblocks format formelnummer framedtext fussnote \
+fusszeileabstand fusszeilenhoehe gefuelltesrechteck gefuelltezeile geg \
+gesamtseitenanzahl gestreckt getnumber gitter graufarbe \
+grauwert haarlinie hauptsprache headsym heutigesdatum \
+heutigeskopfnummer hintergrund hl hoch hoeheoben \
+hoeheunten holebeschriftung holepuffer imlinken imlinkenrand \
+immaumrise immediatebetweenlist immediatetolist imrechten imrechtenrand \
+imumriss in inaktiviereinteraktionsmenue inanderermarginale indentation \
+ininner inlinkermarginale inmarginalie inneredgedistance inneredgewidth \
+innermargindistance innermarginwidth inouter inrechtermarginale installieresprache \
+interaktionsbalken interaktionsknopfe interaktionsmenue inzeile irgendwo \
+its kap keindimension keinebeschriftung keinebloeckemehr \
+keinedateienmehr keinekopfundfusszeilen keineliste keinspatium keintest \
+keinzeilenobenundunten keinzwischenraum kleinerdurchschuss klonierefeld knopf \
+komponente konvertierezahl kopf kopfniveau kopfnummer \
+kopfweite kopfzeilenabstand kopfzeilenhoehe kopierefeld korrigierezwischenraum \
+label labeling labels labeltext leg \
+liniendicke linkemarginalafstand linkemarginalbreite linksbuendig listenbreite \
+listenhoehe listenlaenge listsymbol loadsorts loadsynonyms \
+mapfontsize mar marginalafstand marginalbreite marginallinie \
+marginaltext marginaltitel marginalwort mathematik maumrise \
+mediaeval menueknopf monat moveformula movesidefloat \
+nachunten name navigating nextsection nichteinziehen \
+nocap nokap nop notiz numberofsubpages \
+nummererhoehen outeredgedistance outeredgewidth outermargindistance outermarginwidth \
+overbar overbars overstrike overstrikes pagedepth \
+pageoffset papierbreite papierhoehe paragraph part \
+passelayoutan passendfeld placefloat placeheadnumber placeheadtext \
+placelistoffloats placelistofsorts placelistofsynonyms placepagenumber placerawlist \
+placereferencelist placerule placetextvariable platzierebookmarks platziereformel \
+platzierefussnoten platzierelegende platziereliste platzierelogo platzierelokalefussnoten \
+platzierenebeneinander platziereregister platziereuntereinander platziereunterformel platzierezusammengestellteliste \
+pos position positiontext posten printpapierbreite \
+printpapierhoehe produkt programm projekt publikation \
+punkt ran randabstand randbreite rechteck \
+rechtecke rechtemarginalafstand rechtemarginalbreite rechtsbuendig ref \
+referenz referieren register registrierefelder reservefloat \
+resetnumber resettextcontent roemischezahlen ruecksetzten ruecksetztenbeschriftung \
+rumpfweite satzbreite satzhoehe schreibezumregister schreibezurliste \
+schreibezurreferenzliste schreibezwischenliste section seeregister seite \
+seitenreferenz seitenummer setnumber settext settextvariable \
+setupanswerarea setupcolumnset setupcolumnsetlines setupcolumnsetstart setupfonthandling \
+setupfontsynonym setupforms setupindentedtext setupinterlinespace2 setupitemgroup \
+setuplistalternative setupmathalignment setupnumber setuppaper setupplacement \
+setuprule setupstartstop setupstrut setuptextposition setuptextvariable \
+showsymbolset sort spalte spatium spiegeln \
+sprache startabbildung startalignment startausrichtung startbuffer \
+startcolumnmakeup startcolumns startcolumnset startcombination startcomment \
+startdescription startdocument startdokument startenger startenumeration \
+startfarbe startfigure startfloattext startformula startframedtext \
+startgeg startgegenueber startglobal startgrosserdurchschuss starthiding \
+starthintergrund startinteraktionsmenue startitemgroup startkleinerdurchschuss startkodierung \
+startkombination startkomponente startlegend startline startlinecorrection \
+startlinenumbering startlines startlocal startlocalenvironment startlocalfootnotes \
+startlokal startlokalefussnoten startmakeup startmarginalblock startmarginallinie \
+startmarginblock startnamemakeup startnarrower startopposite startoverlay \
+startoverview startparagraph startpositionieren startpositioning startpostponing \
+startprodukt startprofil startprofile startprojekt startraster \
+startregister startspalten startsymbolset startsynchronisation startsynchronization \
+starttabelle starttabellen starttable starttables starttabulate \
+starttext starttextlinie starttyping startueberblick startumbruch \
+startumgebung startunpacked startversion startzeile startzeilen \
+startzeilenkorrektur startzeilennumerierung startzitat stelleabsaetzeein stelleabsatznummerierungein \
+stelleabschnittein stelleabschnittsblockein stelleanordnenein stelleaufzaehlungenein stelleausgabeein \
+stelleausrichtungein stelleausschnittein stellebeschreibungein stellebeschriftungein stellebilderunterschriftein \
+stellebildunterschriftein stellebindestrichein stelleblankoein stelleblockein stelledrehenein \
+stelleduennerumrissein stelleeinziehenein stelleengerein stelleexterneabbildungenein stellefarbeein \
+stellefarbenein stellefeldein stellefelderin stellefliesstextein stellefliesstextumgebungein \
+stelleformelnein stellefussnotendefinitionein stellefussnotenein stellefusszeileein stellefusszeilentextein \
+stellegefuelltesrechteckein stellegefuelltezeileein stellegegenueberplatzierenein stellegleitobjekteein stellegleitobjektein \
+stellehintergruendeein stellehintergrundein stelleinmarginalieein stelleinteraktionein stelleinteraktionsbalkenein \
+stelleinteraktionsbildschirmein stelleinteraktionsmenueein stelleknopfein stellekombinationein stellekommentarein \
+stellekopfzahlein stellekopfzeileein stellekopfzeilentextein stellelabeltextein stellelayoutein \
+stellelegendeein stellelinienbreiteein stellelisteein stellemarginalblockein stellemarginallinieein \
+stellenobenein stellenummerierungein stellepaletteein stellepapierformatein stelleplatziegeteiltegleitobjekt \
+stellepositionierenein stellepostenein stelleprofilein stelleprogrammein stellepublikationein \
+stellepufferein stellerasterein stellerechteckein stellereferenzierenein stellereferenzlisteein \
+stelleregisterein stelleseitenkommentarein stelleseitennummerein stelleseitennummeriernungein stelleseitenuebergangein \
+stellesortierenein stellespaltenein stellespatiumein stellespracheein stellesymbolsetein \
+stellesynchronisationein stellesynchronisationsbalkenein stellesynonymein stellesystemein stelletabein \
+stelletabellenein stelletabulatorein stelletextein stelletextobenein stelletexttexteein \
+stelletextumrissein stelletextuntenein stelletipein stelletippenein stelletoleranzein \
+stelleueberschriftein stelleueberschriftenein stelleueberschrifttextein stelleumbruchein stelleumrahmtein \
+stelleumrahmtetexteein stelleuntenein stelleunterseitennummerein stelleunterstreichenein stelleurlein \
+stelleversalienein stelleversionein stellezeilenabstandein stellezeilenein stellezeilennumerierungein \
+stellezitierenein stellezusammengestelltelisteein stellezwischenraumein stopalignment stopausrichtung \
+stopbuffer stopcolumnmakeup stopcolumns stopcolumnset stopcombination \
+stopcomment stopdescription stopdocument stopdokument stopenger \
+stopenumeration stopfarbe stopfigure stopfloattext stopformula \
+stopframedtext stopgeg stopgegenueber stopglobal stopgrosserdurchschuss \
+stophiding stophintergrund stopinteraktionsmenue stopitemgroup stopkleinerdurchschuss \
+stopkodierung stopkombination stopkomponente stoplegend stopline \
+stoplinecorrection stoplinenumbering stoplines stoplocal stoplocalenvironment \
+stoplocalfootnotes stoplokal stoplokalefussnoten stopmakeup stopmarginalblock \
+stopmarginallinie stopmarginblock stopnamemakeup stopnarrower stopopposite \
+stopoverlay stopoverview stopparagraph stoppositionieren stoppositioning \
+stoppostponing stopprodukt stopprofil stopprofile stopprojekt \
+stopraster stopspalten stopsymbolset stopsynchronisation stopsynchronization \
+stoptabelle stoptabellen stoptable stoptables stoptabulate \
+stoptext stoptextlinie stoptyping stopueberblick stopumbruch \
+stopumgebung stopunpacked stopversion stopzeile stopzeilen \
+stopzeilenkorrektur stopzeilennumerierung stopzitat sub subject \
+subpagenumber subsection subsubject subsubsection subsubsubject \
+switchtorawfont sym symbol synchronisationsbalken synchronisieren \
+synonym tab teilegleitobjekt testcolumn testpage \
+tex textbreite texthoehe textlinie textreferenz \
+textvariable tief tiho tip tippedatei \
+tippen tippepuffer title tooltip txt \
+ueber ueberschrifttext uebersetzten umgebung umrahmt \
+unbekant underbar underbars unterformelnummer useXMLfilter \
+usedirectory usetypescript usetypescriptfile verbergebloecke vergleichefarbengruppe \
+vergleichepalette verknuepfebeschriftung verknuepfedokument verknuepfregister version \
+verweis verweisdatum verwendeJSscript verwendeURL verwendebefehl \
+verwendebloecke verwendeexteresdokument verwendeexterneabbildung verwendeexternedatei verwendeexternedateien \
+verwendeexternestonstueck verwendemodul verwendemodule verwendereferenzen verwendesymbole \
+verwendeurl vl volleswort von waehlebloeckeaus \
+waehlepapieraus waehleversionaus wechselezumfliesstext wiederholen wochentag \
+wohnort wortrechts zeigedruck zeigeeinstellungen zeigeexterneabbildungen \
+zeigefarbe zeigefarbengruppe zeigefelder zeigefliesstext zeigefliesstextumgebung \
+zeigegitter zeigelayout zeigepalette zeigerahmen zeigestruts \
+zeigeumbruch zentriert ziffern zitat zitieren \
+zu zurbox zurseite zwischenraum 
+
 keywordclass.context.fr=\
 CAP Cap Caps Caractere \
 Caracteres Chiffresromains JOURSEMAINE MOIS MOT \
@@ -480,332 +953,6 @@ utilisepsiteaudioexterne utilisereferences utilisespecialites utilisesymboles ut
 va vaalaboite vaalapage vaenbas valeurcouleur \
 valeurgris variabletexte version vide vl 
 
-keywordclass.context.it=\
-CAP Cap Caps GIORNOSETTIMANA \
-Lettera Lettere MESE Numeri Numeriromani \
-PAROLA PAROLE Parola Parole accoppiacarta \
-accoppiadocumento accoppiamarcatura accoppiapagina accoppiaregistro adattacampo \
-adattalayout al allineacentro allineadestra allineasinistra \
-altezzacarta altezzacartastampa altezzacima altezzaelenco altezzafondo \
-altezzaintestazione altezzamakeup altezzapdp altezzatesto ambiente \
-ampiezzabordo ampiezzabordodestro ampiezzabordosinistro ampiezzacarta ampiezzacartastampa \
-ampiezzaelenco ampiezzamakeup ampiezzamargine ampiezzamarginedestro ampiezzamarginesinistro \
-ampiezzatesto ap apagina appendix arg \
-atleftmargin atrightmargin barracolori barrainterazione barrasincronizzazione \
-bastablocchi bastafile cambiaafontdeltesto campi camporiempimento \
-cap capello chapter chim circondato \
-citazione clip clonacampo colonna colore \
-coloregrigio comment commento completecombinedlist completelistoffloats \
-completelistofsorts completelistofsynonyms completeregister componenet confrontagruppocolori \
-confrontatavolozza convertinumero copiacampo correggispaziobianco coupledregister \
-crlf cutspace da daqualcheparte data \
-datadioggi datareferral decrementnumber definebodyfontDEF definebodyfontREF \
-definecolumnbreak definecombination definedfont definefontfeature definefonthandling \
-defineindentedtext defineinmargin defineitemgroup definelayer definemathalignment \
-definepagebreak defineplacement definetypeface definisci definisciaccento \
-definisciambientefontdeltesto definisciblocco definiscibloccosezione definiscibuffer definiscicampo \
-definiscicampoprincipale definiscicapoversi definiscicarattere definiscicolore definiscicomando \
-definisciconversione definiscidescrizione definiscidimensionicarta definiscielenco definiscielencocombinato \
-definiscienumerazione definiscietichetta definiscifigurasimbolo definiscifont definiscifontdeltesto \
-definiscifontgrezzo definisciformatoriferimento definiscigruppocolonne definiscigruppocolori definiscihbox \
-definisciincorniciato definisciiniziatermina definiscilayout definiscilinea definiscilistariferimenti \
-definiscilogo definiscimakeup definiscimarcatura definiscimenuinterazione definiscimodellotabella \
-definiscioggettomobile definisciordinamento definiscioutput definisciposizionetesto definisciprofilo \
-definisciprogramma definisciregistro definisciriferimento definiscirigovuoto definiscisezione \
-definiscisimbolo definiscisinonimi definiscisinonimofont definiscisottocampo definiscisovrapposizione \
-definiscistackcampi definiscistile definiscistilefont definiscitabulato definiscitavolozza \
-definiscitesta definiscitesto definiscitestoincorniciato definiscitype definiscityping \
-definiscivariabiletesto definisciversion description determinacaratteristicheregistro determinacarattersticheelenco \
-determinanumerotesta dimensione disabilitamenuinterazione distanzabordo distanzabordodestro \
-distanzabordosinistro distanzacima distanzafondo distanzaintestazione distanzamargine \
-distanzamarginedestro distanzamarginesinistro distanzapdp domicilio el \
-elaborablocchi elaborapagina elementi elemento emptylines \
-enumeration etichetta etichette fatto figuraesterna \
-fondo forzablocchi framedtext frazione getnumber \
-giornosettimana griglia headsym hl ignoto \
-immediatebetweenlist immediatetolist impaccato impostaallineamento impostaambientefontdeltesto \
-impostaampiezzariga impostabarrainterazione impostabarrasincronizzazione impostablocchimargine impostablocco \
-impostabloccosezione impostabuffer impostacampi impostacampo impostacapoversi \
-impostacaption impostacaptions impostacima impostaclippling impostacolonne \
-impostacolore impostacolori impostacombinazioni impostacommento impostacommentopagina \
-impostadefinizionenotepdp impostadescrizioni impostadimensionicarta impostaelementi impostaelencazioni \
-impostaelenco impostaelencocombinato impostaenumerazioni impostafigureesterne impostafondo \
-impostafontdeltesto impostaforms impostaformule impostagruppocolonne impostaincorniciato \
-impostainiziatermina impostainmargine impostainstestazione impostainterazione impostainterlinea \
-impostalayout impostalegenda impostalinea impostalineemargine impostalineenere \
-impostalineeriempimento impostalineesottili impostalineetesto impostalingua impostalistariferimenti \
-impostamaiuscole impostamakeup impostamarcatura impostamenuinterazione impostamenzione \
-impostanotepdp impostanumerazione impostanumerazionecapoversi impostanumerazionepagina impostanumerazionerighe \
-impostanumeropagina impostanumerosottopagina impostanumerotesta impostaoggettimobili impostaoggettomobile \
-impostaordinamento impostaoutput impostaparranging impostapdp impostapiustretto \
-impostaposizionamento impostaposizionamentoopposti impostaposizionetesto impostaprofili impostaprogrammi \
-impostapubblicazioni impostapulsanti impostaregistro impostarientro impostariferimento \
-impostarighe impostarigheriempimento impostarigovuoto impostarotazione impostaschermi \
-impostaschermointerazione impostasegnosillabazione impostasetsimboli impostasezione impostasfondi \
-impostasfondo impostasincronizzazione impostasinonimi impostasistema impostasottolinea \
-impostaspaziatura impostaspaziobianco impostaspezzamentooggettomobile impostastrut impostatab \
-impostatabelle impostatabulato impostatavolozza impostatesta impostateste \
-impostatesticima impostatestifondo impostatestiincorniciati impostatestiintestazioni impostatestipdp \
-impostatesto impostatestoetichette impostatestointestazioni impostatestotesti impostatolleranza \
-impostatransizionepagina impostatype impostatyping impostaurl impostavariabiletesto \
-impostaversioni impostazioni in inaltromargine incorniciato \
-incrementanumero indentation indestra ininner iniziaallineamento \
-iniziaambiente iniziabloccomargine iniziacitazione iniziacodifica iniziacolonne \
-iniziacolore iniziacombinazione iniziacomponente iniziacorrezioneriga iniziadocumento \
-iniziafigura iniziaglobale iniziagruppocolonne iniziaimpaccato inizialineamargine \
-inizialineatesto inizialocale iniziamakeup inizianotepdplocali inizianumerazionerighe \
-iniziaopposto iniziaoverview iniziapiustretto iniziaposizionamento iniziaprodotto \
-iniziaprofilo iniziaprogetto iniziaraster iniziariga iniziarighe \
-iniziasetsimboli iniziasfondo iniziasincronizzazione iniziasovrapposizione iniziatabella \
-iniziatabelle iniziatesto iniziaunpacked iniziaversione inlatodestro \
-inlatosinistro inmaframed inmargine inmarginedestro inmarginesinistro \
-inneredgedistance inneredgewidth innermargindistance innermarginwidth inouter \
-inriga insinistra installalingua intorno labeling \
-leg lettera lettere lineamargine lineanera \
-lineasottile lineatesto lineenere lineeriempimento lineesottili \
-lingua linguaprincipale listsymbol livellotesta loadsorts \
-loadsynonyms logcampi lunghezzaelenco maframed mapfontsize \
-mar marcatura marcaversione matematica mediaeval \
-menuinterattivo menzione mese mettielenco mettielencocombinato \
-mettifiancoafianco mettiformula mettiingriglia mettilegenda mettilinea \
-mettiloghi mettinotepdp mettinotepdplocali mettinumeropagina mettiregistro \
-mettisegnalibro mettisottoformula mettiunosullaltro mettivariabiletesto mostraambientefontdeltesto \
-mostracampi mostracolore mostracornice mostrafiguresterne mostrafontdeltesto \
-mostragriglia mostragruppocolori mostraimpostazioni mostralyout mostramakeup \
-mostrasetsimboli mostrastampa mostrastruts mostratavolozza movesidefloat \
-name nascondiblocchi navigating nextsection nientedimensioni \
-nienteelenco nientelineecimafondo nientelineintestazionepdp nientemarcatura nienterientro \
-nientespazio nientespaziobianco nocap nome nomeunita \
-nop nota notapdp notest numberofsubpages \
-numeri numeriromani numeroformula numeropagina numeropaginacompleto \
-numerosottoformula numerotesta numerotestacorrente numerototaledipagine outeredgedistance \
-outeredgewidth outermargindistance outermarginwidth overbar overbars \
-overstrike overstrikes pagedepth pageoffset pagina \
-paragraph paroladestra parolainmargine part passaafontgrezzo \
-ped pedap perlungo placefloat placelistoffloats \
-placelistofsorts placelistofsynonyms placerawlist placereferencelist posizionanumerotesta \
-posizionatesto posizionatestotesta posizione prendibuffer prendimarcatura \
-prodotto progetto programma pubblicazione pulsante \
-pulsantemenu pulsantinterazione punti qualcheriga ran \
-referral referring register reimposta reimpostamarcatura \
-reservefloat resetnumber resettextcontent rientro rif \
-rifai riferimento riferimentopagina riferimentotesto riflessione \
-rigariempimento rigovuoto ruota saltablocchi scala \
-schermo scrividentroelenco scriviinelenco scriviinlistariferimenti scriviinregistro \
-section seeregister segnalibro seguiprofilo seguiversione \
-seguiversioneprofilo selezionablocchi selezionacarta selezionaversione separamarcatura \
-setnumber settext setupanswerarea setupcolumnsetlines setupcolumnsetstart \
-setupfonthandling setupfontsynonym setupindentedtext setupinterlinespace2 setupitemgroup \
-setuplistalternative setupmathalignment setuppaper setupplacement setvariabiletesto \
-sfondo sim simbolo sincronizza sort \
-spazifissi spazio spaziobianco spaziocima spaziodietro \
-spaziofisso spaziofondo spessoreriga spezzaoggettomobile spostaagriglia \
-spostaformula stackcampi startalignment startambiente startbuffer \
-startcitazione startcolore startcolumnmakeup startcolumns startcombination \
-startcomment startcomponenet startdescription startdocument startenumeration \
-startfatto startfigure startfloattext startformula startframedtext \
-starthiding startimpaccato startitemgroup startlegend startline \
-startlineamargine startlineatesto startlinecorrection startlinenumbering startlines \
-startlocal startlocalenvironment startlocalfootnotes startmakeup startmarginblock \
-startmenuinterattivo startnamemakeup startnarrower startopposite startoverlay \
-startoverview startparagraph startpositioning startpostponing startprodotto \
-startprofile startprogetto startregister startsfondo startsymbolset \
-startsynchronization starttable starttables starttabulate starttyping \
-startunpacked startversione stirato stopalignment stopambiente \
-stopbuffer stopcitazione stopcolore stopcolumnmakeup stopcolumns \
-stopcombination stopcomment stopcomponenet stopdescription stopdocument \
-stopenumeration stopfatto stopfigure stopfloattext stopformula \
-stopframedtext stophiding stopimpaccato stopitemgroup stoplegend \
-stopline stoplineamargine stoplineatesto stoplinecorrection stoplinenumbering \
-stoplines stoplocal stoplocalenvironment stoplocalfootnotes stopmakeup \
-stopmarginblock stopmenuinterattivo stopnamemakeup stopnarrower stopopposite \
-stopoverlay stopoverview stopparagraph stoppositioning stoppostponing \
-stopprodotto stopprofile stopprogetto stopsfondo stopsymbolset \
-stopsynchronization stoptable stoptables stoptabulate stoptyping \
-stopunpacked stopversione sub subject subpagenumber \
-subsection subsubject subsubsection subsubsubject synonym \
-tab terminaallineamento terminaambiente terminabloccomargine terminacitazione \
-terminacodifica terminacolonne terminacolore terminacombinazione terminacomponente \
-terminacorrezioneriga terminadocumento terminaglobale terminagruppocolonne terminaimpaccato \
-terminalineamargine terminalineatesto terminalocale terminamakeup terminanotepdplocali \
-terminanumerazionerighe terminaopposto terminaoverview terminapiustretto terminaposizionamento \
-terminaprodotto terminaprofili terminaprogetto terminaraster terminariga \
-terminarighe terminasfondo terminasincronizzazione terminasovrapposizione terminatabella \
-terminatabelle terminatesto terminaunpacked terminaversioni testa \
-testcolumn testoetichetta testoinmargine testoinstestazioni testonotapdp \
-testoriempimento testpage tex tieniblocchi title \
-titoloinmargine tooltip traduci txt typ \
-type typebuffer typefile underbar underbars \
-usaJSscripts usaURL usablocco usacartella usacodifica \
-usacolonnasonoraesterna usacomandi usadocumentoesterno usafiguraesterna usafileesterni \
-usafileesterno usamoduli usamodulo usariferimenti usasimboli \
-usaspecialita usaurl useXMLfilter usedirectory usetypescript \
-usetypescriptfile vaia vaiabox vaiapagina vaigiu \
-valorecolore valoregrigio variabiletesto versione vl 
-
-keywordclass.context.pe=\
-CAP Cap Caps Character \
-Characters MONTH Numbers Romannumerals WEEKDAY \
-WORD WORDS Word Words appendix \
-cap chapter chem comment completecombinedlist \
-completelistoffloats completelistofsorts completelistofsynonyms coupledregister crlf \
-definebodyfontDEF definebodyfontREF definedfont definefontfeature definefonthandling \
-defineindentedtext definetypeface description enumeration framedtext \
-indentation inmframed its labeling loadsorts \
-loadsynonyms mapfontsize mediaeval mframed name \
-nextsection nocap overbar overbars overstrike \
-overstrikes paragraph part placelistoffloats placelistofsorts \
-placelistofsynonyms ran register reservefloat resettextcontent \
-section seeregister setupanswerarea setupcapitals setupfonthandling \
-setupfontsynonym setupindentedtext setupinterlinespace2 setuplistalternative setupurl \
-sort startalignment startbuffer startcolumns startcombination \
-startcomment startdescription startdocument startenumeration startfigure \
-startfloattext startformula startframedtext starthiding startitemgroup \
-startlegend startline startlinecorrection startlinenumbering startlines \
-startlocal startlocalenvironment startlocalfootnotes startmakeup startmarginblock \
-startnamemakeup startnarrower startopposite startoverlay startoverview \
-startparagraph startpositioning startpostponing startprofile startraster \
-startregister startsymbolset startsynchronization starttable starttables \
-starttabulate starttyping startunpacked startتولید startحقیقت \
-startخط‌حاشیه startخط‌متن startرنگ startفشرده startمحیط \
-startمنوی‌پانل startمولفه startنسخه startنقل‌قول startپروژه \
-startپس‌زمینه stopalignment stopbuffer stopcolumns stopcombination \
-stopcomment stopdescription stopdocument stopenumeration stopfigure \
-stopfloattext stopformula stopframedtext stophiding stopitemgroup \
-stoplegend stopline stoplinecorrection stoplinenumbering stoplines \
-stoplocal stoplocalenvironment stoplocalfootnotes stopmakeup stopmarginblock \
-stopnamemakeup stopnarrower stopopposite stopoverlay stopoverview \
-stopparagraph stoppositioning stoppostponing stopprofile stopraster \
-stopsymbolset stopsynchronization stoptable stoptables stoptabulate \
-stoptyping stopunpacked stopتولید stopحقیقت stopخط‌حاشیه \
-stopخط‌متن stopرنگ stopفشرده stopمحیط stopمنوی‌پانل \
-stopمولفه stopنسخه stopنقل‌قول stopپروژه stopپس‌زمینه \
-sub subject subsection subsubject subsubsection \
-subsubsubject synonym title tooltip txt \
-typ underbar underbars useJSscripts useURL \
-useXMLfilter usedirectory useurl آفست‌صفحه آیتم \
-آیتمها آینه اجباربلوکها ارتفاع‌آرایش ارتفاع‌بالا \
-ارتفاع‌برگ ارتفاع‌ته‌برگ ارتفاع‌خط ارتفاع‌سربرگ ارتفاع‌متن \
-ارتفاع‌پایین از ازکارانداختن‌منوی‌پانل استفاده‌بلوکها استفاده‌دستخط‌تایپ \
-استفاده‌رمزینه استفاده‌شکل‌خارجی استفاده‌فرمانها استفاده‌قطعه‌موزیک‌خارجی استفاده‌مدول \
-استفاده‌مدولها استفاده‌مرجعها استفاده‌مسیر استفاده‌نمادها استفاده‌نوشتارخارجی \
-استفاده‌ویژگیها استفاده‌پرونده‌خارجی استفاده‌پرونده‌دستخط‌تایپ استفاده‌پرونده‌های‌خارجی اعدادلاتین \
-افزودن اما امتحان‌نکن انتخاب‌برگ انتخاب‌بلوکها \
-انتخاب‌نسخه انتقال‌به‌توری انتقال‌فرمول انتقال‌کنار‌شناور انجام‌دوباره \
-بارگذاریها بارگذاری‌آرایش بارگذاری‌آیتمها بارگذاری‌ارجاع بارگذاری‌اندازه‌برگ \
-بارگذاری‌باریکتر بارگذاری‌بافر بارگذاری‌بالا بارگذاری‌بخش بارگذاری‌بردباری \
-بارگذاری‌برنامه‌ها بارگذاری‌برگ بارگذاری‌بست بارگذاری‌بلوک بارگذاری‌بلوکهای‌حاشیه \
-بارگذاری‌بلوک‌بخش بارگذاری‌تایپ بارگذاری‌تایپ‌کردن بارگذاری‌تب بارگذاری‌ترتیب \
-بارگذاری‌ترکیب‌ها بارگذاری‌تطابق بارگذاری‌تعریف‌پانوشت بارگذاری‌تنظیم بارگذاری‌تنظیم‌ریاضی \
-بارگذاری‌ته‌برگ بارگذاری‌تورفتگی بارگذاری‌توضیح بارگذاری‌توضیح‌صفحه بارگذاری‌ثبت \
-بارگذاری‌جانشانی بارگذاری‌جدولها بارگذاری‌جدول‌بندی بارگذاری‌خالی بارگذاری‌خروجی \
-بارگذاری‌خط بارگذاری‌خطها بارگذاری‌خطهای‌حاشیه بارگذاری‌خطهای‌سیاه بارگذاری‌خطهای‌متن \
-بارگذاری‌خطهای‌مجموعه‌ستون بارگذاری‌خطها‌ی‌نازک بارگذاری‌درج‌درخطها بارگذاری‌درج‌مخالف بارگذاری‌درون‌حاشیه \
-بارگذاری‌دوران بارگذاری‌دکمه‌ها بارگذاری‌راهنما بارگذاری‌رنگ بارگذاری‌رنگها \
-بارگذاری‌زبان بارگذاری‌ستونها بارگذاری‌سر بارگذاری‌سربرگ بارگذاری‌سرها \
-بارگذاری‌سیستم بارگذاری‌شرح بارگذاری‌شرحها بارگذاری‌شروع‌مجموعه‌ستون بارگذاری‌شروع‌پایان \
-بارگذاری‌شماره بارگذاری‌شماره‌زیرصفحه بارگذاری‌شماره‌سر بارگذاری‌شماره‌صفحه بارگذاری‌شماره‌گذاری \
-بارگذاری‌شماره‌گذاریها بارگذاری‌شماره‌گذاری‌صفحه بارگذاری‌شماره‌گذاری‌پاراگراف بارگذاری‌شماره‌‌گذاری‌خط بارگذاری‌شناور \
-بارگذاری‌شناورها بارگذاری‌شکافتن‌شناورها بارگذاری‌شکلهای‌خارجی بارگذاری‌طرح بارگذاری‌طرح‌بندی \
-بارگذاری‌عرض‌خط بارگذاری‌فاصله‌بین‌خط بارگذاری‌فرمولها بارگذاری‌فضای‌سفید بارگذاری‌فضا‌گذاری \
-بارگذاری‌قالبی بارگذاری‌قلم‌متن بارگذاری‌لوح بارگذاری‌لیست بارگذاری‌لیست‌ترکیبی \
-بارگذاری‌لیست‌مرجع بارگذاری‌مترادفها بارگذاری‌متغیر‌متن بارگذاری‌متن بارگذاری‌متنهای‌بالا \
-بارگذاری‌متن‌سر بارگذاری‌متن‌سربرگ بارگذاری‌متن‌قالبی بارگذاری‌متن‌متنها بارگذاری‌متن‌پانوشت \
-بارگذاری‌متن‌پایین بارگذاری‌مجموعه‌ستون بارگذاری‌مجموعه‌نماد بارگذاری‌محیط‌قلم‌متن بارگذاری‌منوی‌پانل \
-بارگذاری‌مکان‌متن بارگذاری‌مکان‌گذاری بارگذاری‌میدان بارگذاری‌میدانها بارگذاری‌میله‌تطابق \
-بارگذاری‌میله‌زیر بارگذاری‌میله‌پانل بارگذاری‌نسخه‌ها بارگذاری‌نشانه‌شکستن بارگذاری‌نشانه‌گذاری \
-بارگذاری‌نشرها بارگذاری‌نقل بارگذاری‌پاراگرافها بارگذاری‌پانل بارگذاری‌پانوشتها \
-بارگذاری‌پایین بارگذاری‌پرده‌ها بارگذاری‌پرده‌پانل بارگذاری‌پروفایلها بارگذاری‌پرکردن‌خطها \
-بارگذاری‌پس‌زمینه بارگذاری‌پس‌زمینه‌ها بارگذاری‌چیدن بارگذاری‌گذارصفحه بارگذاری‌گروههای‌آیتم \
-بارگذاری‌گروه‌آیتم بازنشانی بازنشانی‌شماره بازنشانی‌متن بازنشانی‌نشانه‌گذاری \
-باگذاری‌متن‌برچسب بدون‌بعد بدون‌بلوکهای‌بیشتر بدون‌تورفتگی بدون‌خط‌بالاوپایین \
-بدون‌خط‌سروته‌برگ بدون‌فایلهای‌بیشتر بدون‌فضا بدون‌فضای‌سفید بدون‌لیست \
-بدون‌نشانه‌گذاری برنامه بروبه بروبه‌جعبه بروبه‌صفحه \
-بروپایین برچسب برچسبها بعد بلند \
-بلوکهای‌پردازش بلوکها‌پنهان بنویس‌بین‌لیست بنویس‌درثبت بنویس‌درلیست‌مرجع \
-بنویس‌در‌لیست تاریخ تاریخ‌جاری تاریخ‌رجوع تایپ \
-تایپ‌بافر تایپ‌پرونده تب ترجمه تطابق \
-تعریف تعریف‌آرایش تعریف‌آرم تعریف‌الگوی‌جدول تعریف‌اندازه‌برگ \
-تعریف‌بافر تعریف‌بخش تعریف‌برنامه تعریف‌برچسب تعریف‌بلوک \
-تعریف‌بلوک‌بخش تعریف‌تایپ تعریف‌تایپ‌کردن تعریف‌تبدیل تعریف‌ترتیب \
-تعریف‌ترکیب تعریف‌تنظیم‌ریاضی تعریف‌توده‌میدان تعریف‌ثبت تعریف‌جانشانی \
-تعریف‌جدول‌بندی تعریف‌جعبه‌‌افقی تعریف‌حرف تعریف‌خالی تعریف‌خروجی \
-تعریف‌خط‌حائل تعریف‌درون‌حاشیه تعریف‌رنگ تعریف‌زیرمیدان تعریف‌سبک \
-تعریف‌سبک‌قلم تعریف‌سر تعریف‌شرح تعریف‌شروع‌پایان تعریف‌شماره‌بندی \
-تعریف‌شمایل‌مرجع تعریف‌شناور تعریف‌شکستن‌ستون تعریف‌شکست‌صفحه تعریف‌طرح‌بندی \
-تعریف‌فرمان تعریف‌قالبی تعریف‌قلم تعریف‌قلم‌خام تعریف‌قلم‌متن \
-تعریف‌لایه تعریف‌لهجه تعریف‌لوح تعریف‌لیست تعریف‌لیست‌ترکیبی \
-تعریف‌لیست‌مرجع تعریف‌مترادفها تعریف‌مترادف‌قلم تعریف‌متغیرمتن تعریف‌متن \
-تعریف‌متن‌قالبی تعریف‌مجموعه‌ستون تعریف‌محیط‌قلم‌بدنه تعریف‌مرجع تعریف‌منوی‌پانل \
-تعریف‌مکان‌متن تعریف‌میدان تعریف‌میدان‌اصلی تعریف‌نسخه تعریف‌نشانه‌گذاری \
-تعریف‌نماد تعریف‌نمادشکل تعریف‌پاراگرافها تعریف‌پروفایل تعریف‌پوشش \
-تعریف‌گروه‌آیتم تعریف‌گروه‌رنگ تعیین‌شماره تعیین‌شماره‌سر تعیین‌متغیر‌متن \
-تعیین‌محتوای‌متن تعیین‌مشخصات‌ثبت تعیین‌مشخصات‌لیست تغییربه‌قلم‌بدنه تغییربه‌قلم‌خام \
-تنظیم‌راست تنظیم‌طرح‌بندی تنظیم‌وسط توجه تورفتگی \
-توری تولید تک ثبت‌زوج ثبت‌کامل \
-جداسازی‌نشانه‌گذاری حاش حرف حرفها حفظ‌بلوکها \
-حقیقت خالی خطهای‌سیاه خطهای‌نازک خطها‌خالی \
-خط‌حاشیه خط‌سیاه خط‌متن خط‌مو خط‌نازک \
-خ‌ا خ‌ع در درج‌آرمها درج‌ثبت \
-درج‌خط درج‌درخط درج‌درخطها درج‌درمتن درج‌درمیدان \
-درج‌در‌بالای‌یکدیگر درج‌در‌توری درج‌راهنما درج‌زیرفرمول درج‌شماره‌سر \
-درج‌شماره‌صفحه درج‌شناور درج‌فرمول درج‌لیست درج‌لیست‌خام \
-درج‌لیست‌مختلط درج‌لیست‌مرجع درج‌متغیرمتن درج‌متن‌سر درج‌پانوشتها \
-درج‌پانوشتهای‌موضعی درج‌چوب‌خط درج‌کنار‌به‌کنار درحاشیه درحاشیه‌دیگر \
-درحاشیه‌راست درحاشیه‌چپ درخارجی درخط درداخلی \
-درراست درصفحه درقالبی درلبه‌راست درلبه‌چپ \
-درمورد درون درپر درچپ دریافت‌بافر \
-دریافت‌شماره دریافت‌نشانه دوران دکمه دکمه‌منو \
-دکمه‌پانل رج رجوع رنگ رنگ‌خاکستری \
-روزهفته ریاضی زبان زبان‌اصلی ستون \
-ستون‌امتحان سر سرپوش‌کوچک‌نه شروع‌آرایش شروع‌آرایش‌ستون \
-شروع‌باریکتر شروع‌بازبینی شروع‌بلوک‌حاشیه شروع‌ترکیب شروع‌تصحیح‌خط \
-شروع‌تطابق شروع‌تنظیم شروع‌تولید شروع‌جدول شروع‌جدولها \
-شروع‌خط شروع‌خطها شروع‌خط‌حاشیه شروع‌خط‌متن شروع‌رنگ \
-شروع‌ستونها شروع‌سراسری شروع‌شماره‌گذاری‌خط شروع‌شکل شروع‌غیر‌فشرده \
-شروع‌فشرده شروع‌متن شروع‌مجموعه‌ستون شروع‌مجموعه‌نماد شروع‌محیط \
-شروع‌مخالف شروع‌موضعی شروع‌مولفه شروع‌مکان‌گذاری شروع‌نسخه \
-شروع‌نقل‌قول شروع‌نوشتار شروع‌پانوشتهای‌موضعی شروع‌پروفایل شروع‌پروژه \
-شروع‌پس‌زمینه شروع‌پوشش شروع‌کد شماره‌افزایش شماره‌زیرصفحه \
-شماره‌زیرفرمول شماره‌سر شماره‌سرجاری شماره‌صفحه شماره‌صفحه‌کامل \
-شماره‌فرمول شماره‌مبدل شماره‌ها شماره‌کاهش شماره‌کل‌صفحه‌ها \
-شکافتن‌شناور شکل‌خارجی صفحه صفحه‌تست صفحه‌زوج \
-صفحه‌پردازش طول‌لیست عبوربلوکها عرض‌آرایش عرض‌برگ \
-عرض‌حاشیه عرض‌حاشیه‌خارجی عرض‌حاشیه‌داخلی عرض‌حاشیه‌راست عرض‌حاشیه‌چپ \
-عرض‌خط عرض‌لبه عرض‌لبه‌خارجی عرض‌لبه‌داخلی عرض‌لبه‌راست \
-عرض‌لبه‌چپ عرض‌لیست عرض‌متن عمق‌صفحه عنوان‌حاشیه \
-فاصله‌بالا فاصله‌ته‌برگ فاصله‌حاشیه فاصله‌حاشیه‌خارجی فاصله‌حاشیه‌داخلی \
-فاصله‌حاشیه‌راست فاصله‌حاشیه‌چپ فاصله‌سربرگ فاصله‌لبه فاصله‌لبه‌خارجی \
-فاصله‌لبه‌داخلی فاصله‌لبه‌راست فاصله‌لبه‌چپ فاصله‌پایین فاصله‌پشت \
-فشرده فضا فضاهای‌ثابت فضای‌بالا فضای‌برش \
-فضای‌ثابت فضای‌سفید فضای‌سفیدصحیح فضای‌پایین فوری‌به‌لیست \
-فوری‌بین‌لیست قالبی لوح‌مقایسه ماه متغیر متن \
-متن‌برچسب متن‌حاشیه متن‌سر متن‌پانوشت محیط \
-مراجعه مرجع مرجع‌صفحه مرجع‌متن مرحله‌سر \
-مسکن معنی‌واحد مقایسه‌گروه‌رنگ مقدارخاکستری مقداررنگ \
-مقیاس منفی منوی‌پانل مولفه مکان \
-مکان‌متن میدان میدانهای‌گزارش میدان‌شبیه‌سازی میدان‌پشته \
-میدان‌کپی میله‌تطابق میله‌رنگ میله‌پانل ناشناس \
-نام‌ماکرو نسخه نسخه‌نشانه نشانه‌گذاری نشانه‌گذاری‌زوج \
-نشر نصب‌زبان نقطه‌ها نقل نقل‌قول \
-نم نماد نمادسر نمادلیست نمایش‌آرایش \
-نمایش‌بارگذاریها نمایش‌بستها نمایش‌توری نمایش‌رنگ نمایش‌شکلهای‌خارجی \
-نمایش‌طرح‌بندی نمایش‌قالب نمایش‌قلم‌بدنه نمایش‌لوح نمایش‌مجموعه‌علامت \
-نمایش‌محیط‌قلم‌بدنه نمایش‌میدانها نمایش‌چاپ نمایش‌گروه‌رنگ نوشتارزوج \
-هدایت پا پابا پانوشت پایان‌آرایش \
-پایان‌آرایش‌ستون پایان‌بازبینی پایان‌بلوک‌حاشیه پایان‌ترکیب پایان‌تصحیح‌خط \
-پایان‌تطابق پایان‌تنظیم پایان‌تولید پایان‌جدول پایان‌جدولها \
-پایان‌خط پایان‌خطها پایان‌خط‌حاشیه پایان‌خط‌متن پایان‌رنگ \
-پایان‌ستونها پایان‌سراسری پایان‌شماره‌گذاری‌خط پایان‌غیرفشرده پایان‌فشرده \
-پایان‌متن پایان‌مجموعه‌ستون پایان‌محیط پایان‌مخالف پایان‌موضعی \
-پایان‌مولفه پایان‌مکان‌گذاری پایان‌نازکتر پایان‌نسخه پایان‌نقل‌قول \
-پایان‌نوشتار پایان‌پانوشتهای‌موضعی پایان‌پروفایل پایان‌پروژه پایان‌پس‌زمینه \
-پایان‌پوشش پایان‌کد پایین پرده پروژه \
-پرکردن‌میدان پس‌زمینه پیروی‌نسخه پیروی‌نسخه‌پروفایل پیروی‌پروفایل \
-چاپ‌ارتفاع‌برگ چاپ‌عرض‌برگ چوبخط چپ‌چین کاغذزوج \
-کسر کشیده کلمه‌حاشیه کلمه‌راست گیره \
-یادداشت یک‌جا یک‌خط 
-
 keywordclass.context.ro=\
 CAP CUVANT CUVINTE Cap \
 Caps Cuvant Cuvinte KAP Kap \
@@ -964,313 +1111,166 @@ urmeazaversiune urmeazaversiuneprofil useXMLfilter usedirectory usetypescript \
 usetypescriptfile valoareculoare valoaregri variabilatext versiune \
 vl zidinsaptamana 
 
-keywordclass.context.en=\
+keywordclass.context.pe=\
 CAP Cap Caps Character \
 Characters MONTH Numbers Romannumerals WEEKDAY \
-WORD WORDS Word Words about \
-adaptlayout adding appendix arg at \
-atleftmargin atpage atrightmargin background backspace \
-blackrule blackrules blank bookmark bottomdistance \
-bottomheight bottomspace but button bypassblocks \
-cap chapter character characters chem \
-clip clonefield color colorbar colorvalue \
-column comment comparecolorgroup comparepalet completecombinedlist \
-completelistoffloats completelistofsorts completelistofsynonyms completepagenumber completeregister \
-component convertnumber copyfield correctwhitespace coupledocument \
-coupledregister couplemarking couplepage couplepaper coupleregister \
-crlf currentdate currentheadnumber cutspace date \
-decouplemarking decrementnumber define defineaccent defineblank \
-defineblock definebodyfont definebodyfontDEF definebodyfontREF definebodyfontenvironment \
-definebuffer definecharacter definecolor definecolorgroup definecolumnbreak \
-definecolumnset definecombination definecombinedlist definecommand defineconversion \
-definedescription definedfont defineenumeration definefield definefieldstack \
-definefiguresymbol definefloat definefont definefontfeature definefonthandling \
-definefontstyle definefontsynonym defineframed defineframedtext definehbox \
-definehead defineindentedtext defineinmargin defineinteractionmenu defineitemgroup \
-definelabel definelayer definelayout definelist definelogo \
-definemainfield definemakeup definemarking definemathalignment defineoutput \
-defineoverlay definepagebreak definepalet definepapersize defineparagraphs \
-defineplacement defineprofile defineprogram definerawfont definereference \
-definereferenceformat definereferencelist defineregister definerule definesection \
-definesectionblock definesorting definestartstop definestyle definesubfield \
-definesymbol definesynonyms definetabletemplate definetabulate definetext \
-definetextposition definetextvariable definetype definetypeface definetyping \
-defineversion description determineheadnumber determinelistcharacteristics determineregistercharacteristics \
-dimension disableinteractionmenu domicile donttest edgedistance \
-edgewidth emptylines enumeration environment externalfigure \
-fact field fieldstack fillinfield fillinline \
-fillinrules fillintext fitfield fixedspace fixedspaces \
-followprofile followprofileversion followversion footerdistance footerheight \
-footnote footnotetext forceblocks formulanumber fraction \
-framed framedtext from getbuffer getmarking \
-getnumber godown goto gotobox gotopage \
-graycolor greyvalue grid hairline head \
-headerdistance headerheight headlevel headnumber headsym \
-headtext hideblocks high hl immediatebetweenlist \
-immediatetolist in incrementnumber indentation indenting \
-inframed infull ininner inleft inleftedge \
-inleftmargin inline inmaframed inmargin inneredgedistance \
-inneredgewidth innermargindistance innermarginwidth inothermargin inouter \
-inright inrightedge inrightmargin installlanguage interactionbar \
-interactionbuttons interactionmenu item items its \
-keepblocks label labeling labels labeltext \
-language leftaligned leftedgedistance leftedgewidth leftmargindistance \
-leftmarginwidth leg linethickness listheight listlength \
-listsymbol listwidth loadsorts loadsynonyms logfields \
-lohi low maframed mainlanguage makeupheight \
-makeupwidth mapfontsize mar margindistance marginrule \
-margintext margintitle marginwidth marginword marking \
-markversion mathematics mediaeval menubutton midaligned \
-mirror month moveformula moveongrid movesidefloat \
-name navigating nextsection nocap nodimension \
-noheaderandfooterlines noindenting nolist nomarking nomoreblocks \
-nomorefiles nop nospace note notopandbottomlines \
-nowhitespace numberofsubpages numbers outeredgedistance outeredgewidth \
-outermargindistance outermarginwidth overbar overbars overstrike \
-overstrikes packed page pagedepth pagenumber \
-pageoffset pagereference paperheight paperwidth paragraph \
-part periods placebookmarks placecombinedlist placefloat \
-placefootnotes placeformula placeheadnumber placeheadtext placelegend \
-placelist placelistoffloats placelistofsorts placelistofsynonyms placelocalfootnotes \
-placelogos placeongrid placeontopofeachother placepagenumber placerawlist \
-placereferencelist placeregister placerule placesidebyside placesubformula \
-placetextvariable position positiontext printpaperheight printpaperwidth \
-processblocks processpage product program project \
-publication quotation quote ran redo \
-ref reference referral referraldate referring \
-register remark reservefloat reset resetmarking \
-resetnumber resettextcontent rightaligned rightedgedistance rightedgewidth \
-rightmargindistance rightmarginwidth romannumerals rotate scale \
-screen section seeregister selectblocks selectpaper \
-selectversion setnumber settextcontent settextvariable setupalign \
-setupanswerarea setuparranging setupbackground setupbackgrounds setupblackrules \
-setupblank setupblock setupbodyfont setupbodyfontenvironment setupbottom \
-setupbottomtexts setupbuffer setupbuttons setupcapitals setupcaption \
-setupcaptions setupclipping setupcolor setupcolors setupcolumns \
-setupcolumnset setupcolumnsetlines setupcolumnsetstart setupcombinations setupcombinedlist \
-setupcomment setupdescriptions setupenumerations setupexternalfigures setupfield \
-setupfields setupfillinlines setupfillinrules setupfloat setupfloats \
-setupfloatsplitting setupfonthandling setupfontsynonym setupfooter setupfootertexts \
-setupfootnotedefinition setupfootnotes setupforms setupformulae setupframed \
-setupframedtexts setuphead setupheader setupheadertexts setupheadnumber \
-setupheads setupheadtext setuphyphenmark setupindentedtext setupindenting \
-setupinmargin setupinteraction setupinteractionbar setupinteractionmenu setupinteractionscreen \
-setupinterlinespace setupinterlinespace2 setupitemgroup setupitemizations setupitems \
-setuplabeltext setuplanguage setuplayout setuplegend setuplinenumbering \
-setuplines setuplinewidth setuplist setuplistalternative setupmakeup \
-setupmarginblocks setupmarginrules setupmarking setupmathalignment setupnarrower \
-setupnumber setupnumbering setupoppositeplacing setupoutput setuppagecomment \
-setuppagenumber setuppagenumbering setuppagetransitions setuppalet setuppaper \
-setuppapersize setupparagraphnumbering setupparagraphs setupplacement setuppositioning \
-setupprofiles setupprograms setuppublications setupquote setupreferencelist \
-setupreferencing setupregister setuprotate setuprule setups \
-setupscreens setupsection setupsectionblock setupsorting setupspacing \
-setupstartstop setupstrut setupsubpagenumber setupsymbolset setupsynchronization \
-setupsynchronizationbar setupsynonyms setupsystem setuptab setuptables \
-setuptabulate setuptext setuptextposition setuptextrules setuptexttexts \
-setuptextvariable setupthinrules setuptolerance setuptop setuptoptexts \
-setuptype setuptyping setupunderbar setupurl setupversions \
-setupwhitespace showbodyfont showbodyfontenvironment showcolor showcolorgroup \
-showexternalfigures showfields showframe showgrid showlayout \
-showmakeup showpalet showprint showsetups showstruts \
-showsymbolset someline somewhere sort space \
-splitfloat startalignment startbackground startbuffer startcoding \
-startcolor startcolumnmakeup startcolumns startcolumnset startcombination \
-startcomment startcomponent startdescription startdocument startenumeration \
-startenvironment startfact startfigure startfloattext startformula \
-startframedtext startglobal starthiding startinteractionmenu startitemgroup \
+WORD WORDS Word Words appendix \
+cap chapter chem comment completecombinedlist \
+completelistoffloats completelistofsorts completelistofsynonyms coupledregister crlf \
+definebodyfontDEF definebodyfontREF definedfont definefontfeature definefonthandling \
+defineindentedtext definetypeface description enumeration framedtext \
+indentation inmframed its labeling loadsorts \
+loadsynonyms mapfontsize mediaeval mframed name \
+nextsection nocap overbar overbars overstrike \
+overstrikes paragraph part placelistoffloats placelistofsorts \
+placelistofsynonyms ran register reservefloat resettextcontent \
+section seeregister setupanswerarea setupcapitals setupfonthandling \
+setupfontsynonym setupindentedtext setupinterlinespace2 setuplistalternative setupurl \
+sort startalignment startbuffer startcolumns startcombination \
+startcomment startdescription startdocument startenumeration startfigure \
+startfloattext startformula startframedtext starthiding startitemgroup \
 startlegend startline startlinecorrection startlinenumbering startlines \
 startlocal startlocalenvironment startlocalfootnotes startmakeup startmarginblock \
-startmarginrule startnamemakeup startnarrower startopposite startoverlay \
-startoverview startpacked startparagraph startpositioning startpostponing \
-startproduct startprofile startproject startquotation startraster \
+startnamemakeup startnarrower startopposite startoverlay startoverview \
+startparagraph startpositioning startpostponing startprofile startraster \
 startregister startsymbolset startsynchronization starttable starttables \
-starttabulate starttext starttextrule starttyping startunpacked \
-startversion stopalignment stopbackground stopbuffer stopcoding \
-stopcolor stopcolumnmakeup stopcolumns stopcolumnset stopcombination \
-stopcomment stopcomponent stopdescription stopdocument stopenumeration \
-stopenvironment stopfact stopfigure stopfloattext stopformula \
-stopframedtext stopglobal stophiding stopinteractionmenu stopitemgroup \
+starttabulate starttyping startunpacked startتولید startحقیقت \
+startخط‌حاشیه startخط‌متن startرنگ startفشرده startمحیط \
+startمنوی‌پانل startمولفه startنسخه startنقل‌قول startپروژه \
+startپس‌زمینه stopalignment stopbuffer stopcolumns stopcombination \
+stopcomment stopdescription stopdocument stopenumeration stopfigure \
+stopfloattext stopformula stopframedtext stophiding stopitemgroup \
 stoplegend stopline stoplinecorrection stoplinenumbering stoplines \
 stoplocal stoplocalenvironment stoplocalfootnotes stopmakeup stopmarginblock \
-stopmarginrule stopnamemakeup stopnarrower stopopposite stopoverlay \
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-synchronize synonym tab testcolumn testpage \
-tex textheight textreference textrule textvariable \
-textwidth thinrule thinrules title tooltip \
-topdistance topheight topspace totalnumberofpages translate \
-txt typ type typebuffer typefile \
-underbar underbars unitmeaning unknown useJSscripts \
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-useencoding useexternaldocument useexternalfigure useexternalfile useexternalfiles \
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-usesymbols usetypescript usetypescriptfile useurl version \
-vl weekday whitespace wordright writebetweenlist \
-writetolist writetoreferencelist writetoregister 
-
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-CAP Cap Caps Cijfers \
-KAP Kap Kaps Letter Letters \
-MAAND Romeins WEEKDAG WOORD WOORDEN \
-Woord Woorden aantalsubpaginas about achtergrond \
-appendix arg bepaalkopnummer bepaallijstkenmerken bepaalregisterkenmerken \
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-cap chapter chem cijfers citaat \
-citeer clip comment completecombinedlist completelistoffloats \
-completelistofsorts completelistofsynonyms converteernummer copieerveld corrigeerwitruimte \
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-margetitel margewoord markeer markeerversie mediaeval \
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-passeerblokken passendveld plaatsbeeldmerken plaatsbookmarks plaatsformule \
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-plaatslokalevoetnoten plaatsnaastelkaar plaatsonderelkaar plaatsopgrid plaatspaginanummer \
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-rechterrandafstand rechterrandbreedte ref refereer referentie \
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-startpositioning startpostponing startprodukt startprofiel startprofile \
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-stelexternefigurenin stelformulesin stelformulierenin stelhoofdin stelhoofdtekstenin \
-stelingesprongentextin stelinmargein stelinspringenin stelinteractiebalkin stelinteractiein \
-stelinteractiemenuin stelinteractieschermin stelinterliniein stelinvullijnenin stelinvulregelsin \
-stelitemgroepin stelitemsin stelkadertekstenin stelkantlijnin stelkapitalenin \
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-stelkolommenin stelkopin stelkopnummerin stelkoppeltekenin stelkoppenin \
-stelkoptekstin stelkorpsin stelkorpsomgevingin stellabeltekstin stellayoutin \
-stellegendain stellijndiktein stellijnin stellijstin stelmargeblokkenin \
-stelmarkeringin stelnaastplaatsenin stelnummerenin stelnummerin stelomlijndin \
-stelonderin stelonderstrepenin stelondertekstenin stelopmaakin stelopsommingenin \
-stelpaginacommentaarin stelpaginanummerin stelpaginanummeringin stelpaginaovergangenin stelpaletin \
-stelpapierformaatin stelpapierin stelparagraafnummerenin stelplaatsblokin stelplaatsblokkenin \
-stelplaatsbloksplitsenin stelplaatsin stelpositionerenin stelprofielenin stelprogrammasin \
-stelpublicatiesin stelrastersin stelreferentielijstin stelrefererenin stelregelnummerenin \
-stelregelsin stelregisterin stelroterenin stelsamengesteldelijstin stelsectieblokin \
-stelsectiein stelsmallerin stelsorterenin stelspatieringin stelstartstopin \
-stelstrutin stelsubpaginanummerin stelsymboolsetin stelsynchronisatiebalkin stelsynchronisatiein \
-stelsynoniemenin stelsysteemin steltaalin steltabellenin steltabin \
-steltabulatiein steltekstin steltekstinhoudin steltekstlijnenin steltekstpositiein \
-stelteksttekstenin steltekstvariabelein steltolerantiein steltypein steltypenin \
-steluitlijnenin steluitvoerin stelurlin stelveldenin stelveldin \
-stelversiesin stelvoetin stelvoetnootdefinitiein stelvoetnotenin stelvoettekstenin \
-stelwiskundeuitlijnenin stelwitruimtein stopachtergrond stopalignment stopbuffer \
-stopcitaat stopcodering stopcolumns stopcombinatie stopcombination \
-stopcomment stopdescription stopdocument stopenumeration stopfigure \
-stopfloattext stopformula stopframedtext stopgeg stopglobaal \
-stophiding stopinteractiemenu stopitemgroup stopkantlijn stopkleur \
-stopkolomgroep stopkolommen stopkolomopmaak stoplegend stopline \
-stoplinecorrection stoplinenumbering stoplines stoplocal stoplocalenvironment \
-stoplocalfootnotes stoplokaal stoplokalevoetnoten stopmakeup stopmargeblok \
-stopmarginblock stopnaast stopnamemakeup stopnarrower stopomgeving \
-stoponderdeel stopopelkaar stopopmaak stopopposite stopoverlay \
-stopoverview stopoverzicht stopparagraph stoppositioneren stoppositioning \
-stoppostponing stopprodukt stopprofiel stopprofile stopprojekt \
-stopraster stopregel stopregelcorrectie stopregelnummeren stopregels \
-stopsmaller stopsymbolset stopsynchronisatie stopsynchronization stoptabel \
-stoptabellen stoptable stoptables stoptabulate stoptekst \
-stoptekstlijn stoptyping stopuitlijnen stopunpacked stopvanelkaar \
-stopversie sub subformulenummer subject subpaginanummer \
-subsection subsubject subsubsection subsubsubject suggestie \
-switchnaarkorps switchtorawfont sym symbool symoffset \
-synchronisatiebalk synchroniseer synonym taal tab \
-tekstbreedte teksthoogte tekstlijn tekstreferentie tekstvariabele \
-testkolom testpagina tex title toelichting \
-toonexternefiguren toongrid tooninstellingen toonkader toonkleur \
-toonkleurgroep toonkorps toonkorpsomgeving toonlayout toonopmaak \
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-usecodering usedirectory vastespatie vastespaties veld \
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-volgversie volledigepaginanummer volledigregister voluit weekdag \
-wilijnd wiskunde witruimte woonplaats woordrechts \
-zetbreedte zethoogte 
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+sub subject subsection subsubject subsubsection \
+subsubsubject synonym title tooltip txt \
+typ underbar underbars useJSscripts useURL \
+useXMLfilter usedirectory useurl آفست‌صفحه آیتم \
+آیتمها آینه اجباربلوکها ارتفاع‌آرایش ارتفاع‌بالا \
+ارتفاع‌برگ ارتفاع‌ته‌برگ ارتفاع‌خط ارتفاع‌سربرگ ارتفاع‌متن \
+ارتفاع‌پایین از ازکارانداختن‌منوی‌پانل استفاده‌بلوکها استفاده‌دستخط‌تایپ \
+استفاده‌رمزینه استفاده‌شکل‌خارجی استفاده‌فرمانها استفاده‌قطعه‌موزیک‌خارجی استفاده‌مدول \
+استفاده‌مدولها استفاده‌مرجعها استفاده‌مسیر استفاده‌نمادها استفاده‌نوشتارخارجی \
+استفاده‌ویژگیها استفاده‌پرونده‌خارجی استفاده‌پرونده‌دستخط‌تایپ استفاده‌پرونده‌های‌خارجی اعدادلاتین \
+افزودن اما امتحان‌نکن انتخاب‌برگ انتخاب‌بلوکها \
+انتخاب‌نسخه انتقال‌به‌توری انتقال‌فرمول انتقال‌کنار‌شناور انجام‌دوباره \
+بارگذاریها بارگذاری‌آرایش بارگذاری‌آیتمها بارگذاری‌ارجاع بارگذاری‌اندازه‌برگ \
+بارگذاری‌باریکتر بارگذاری‌بافر بارگذاری‌بالا بارگذاری‌بخش بارگذاری‌بردباری \
+بارگذاری‌برنامه‌ها بارگذاری‌برگ بارگذاری‌بست بارگذاری‌بلوک بارگذاری‌بلوکهای‌حاشیه \
+بارگذاری‌بلوک‌بخش بارگذاری‌تایپ بارگذاری‌تایپ‌کردن بارگذاری‌تب بارگذاری‌ترتیب \
+بارگذاری‌ترکیب‌ها بارگذاری‌تطابق بارگذاری‌تعریف‌پانوشت بارگذاری‌تنظیم بارگذاری‌تنظیم‌ریاضی \
+بارگذاری‌ته‌برگ بارگذاری‌تورفتگی بارگذاری‌توضیح بارگذاری‌توضیح‌صفحه بارگذاری‌ثبت \
+بارگذاری‌جانشانی بارگذاری‌جدولها بارگذاری‌جدول‌بندی بارگذاری‌خالی بارگذاری‌خروجی \
+بارگذاری‌خط بارگذاری‌خطها بارگذاری‌خطهای‌حاشیه بارگذاری‌خطهای‌سیاه بارگذاری‌خطهای‌متن \
+بارگذاری‌خطهای‌مجموعه‌ستون بارگذاری‌خطها‌ی‌نازک بارگذاری‌درج‌درخطها بارگذاری‌درج‌مخالف بارگذاری‌درون‌حاشیه \
+بارگذاری‌دوران بارگذاری‌دکمه‌ها بارگذاری‌راهنما بارگذاری‌رنگ بارگذاری‌رنگها \
+بارگذاری‌زبان بارگذاری‌ستونها بارگذاری‌سر بارگذاری‌سربرگ بارگذاری‌سرها \
+بارگذاری‌سیستم بارگذاری‌شرح بارگذاری‌شرحها بارگذاری‌شروع‌مجموعه‌ستون بارگذاری‌شروع‌پایان \
+بارگذاری‌شماره بارگذاری‌شماره‌زیرصفحه بارگذاری‌شماره‌سر بارگذاری‌شماره‌صفحه بارگذاری‌شماره‌گذاری \
+بارگذاری‌شماره‌گذاریها بارگذاری‌شماره‌گذاری‌صفحه بارگذاری‌شماره‌گذاری‌پاراگراف بارگذاری‌شماره‌‌گذاری‌خط بارگذاری‌شناور \
+بارگذاری‌شناورها بارگذاری‌شکافتن‌شناورها بارگذاری‌شکلهای‌خارجی بارگذاری‌طرح بارگذاری‌طرح‌بندی \
+بارگذاری‌عرض‌خط بارگذاری‌فاصله‌بین‌خط بارگذاری‌فرمولها بارگذاری‌فضای‌سفید بارگذاری‌فضا‌گذاری \
+بارگذاری‌قالبی بارگذاری‌قلم‌متن بارگذاری‌لوح بارگذاری‌لیست بارگذاری‌لیست‌ترکیبی \
+بارگذاری‌لیست‌مرجع بارگذاری‌مترادفها بارگذاری‌متغیر‌متن بارگذاری‌متن بارگذاری‌متنهای‌بالا \
+بارگذاری‌متن‌سر بارگذاری‌متن‌سربرگ بارگذاری‌متن‌قالبی بارگذاری‌متن‌متنها بارگذاری‌متن‌پانوشت \
+بارگذاری‌متن‌پایین بارگذاری‌مجموعه‌ستون بارگذاری‌مجموعه‌نماد بارگذاری‌محیط‌قلم‌متن بارگذاری‌منوی‌پانل \
+بارگذاری‌مکان‌متن بارگذاری‌مکان‌گذاری بارگذاری‌میدان بارگذاری‌میدانها بارگذاری‌میله‌تطابق \
+بارگذاری‌میله‌زیر بارگذاری‌میله‌پانل بارگذاری‌نسخه‌ها بارگذاری‌نشانه‌شکستن بارگذاری‌نشانه‌گذاری \
+بارگذاری‌نشرها بارگذاری‌نقل بارگذاری‌پاراگرافها بارگذاری‌پانل بارگذاری‌پانوشتها \
+بارگذاری‌پایین بارگذاری‌پرده‌ها بارگذاری‌پرده‌پانل بارگذاری‌پروفایلها بارگذاری‌پرکردن‌خطها \
+بارگذاری‌پس‌زمینه بارگذاری‌پس‌زمینه‌ها بارگذاری‌چیدن بارگذاری‌گذارصفحه بارگذاری‌گروههای‌آیتم \
+بارگذاری‌گروه‌آیتم بازنشانی بازنشانی‌شماره بازنشانی‌متن بازنشانی‌نشانه‌گذاری \
+باگذاری‌متن‌برچسب بدون‌بعد بدون‌بلوکهای‌بیشتر بدون‌تورفتگی بدون‌خط‌بالاوپایین \
+بدون‌خط‌سروته‌برگ بدون‌فایلهای‌بیشتر بدون‌فضا بدون‌فضای‌سفید بدون‌لیست \
+بدون‌نشانه‌گذاری برنامه بروبه بروبه‌جعبه بروبه‌صفحه \
+بروپایین برچسب برچسبها بعد بلند \
+بلوکهای‌پردازش بلوکها‌پنهان بنویس‌بین‌لیست بنویس‌درثبت بنویس‌درلیست‌مرجع \
+بنویس‌در‌لیست تاریخ تاریخ‌جاری تاریخ‌رجوع تایپ \
+تایپ‌بافر تایپ‌پرونده تب ترجمه تطابق \
+تعریف تعریف‌آرایش تعریف‌آرم تعریف‌الگوی‌جدول تعریف‌اندازه‌برگ \
+تعریف‌بافر تعریف‌بخش تعریف‌برنامه تعریف‌برچسب تعریف‌بلوک \
+تعریف‌بلوک‌بخش تعریف‌تایپ تعریف‌تایپ‌کردن تعریف‌تبدیل تعریف‌ترتیب \
+تعریف‌ترکیب تعریف‌تنظیم‌ریاضی تعریف‌توده‌میدان تعریف‌ثبت تعریف‌جانشانی \
+تعریف‌جدول‌بندی تعریف‌جعبه‌‌افقی تعریف‌حرف تعریف‌خالی تعریف‌خروجی \
+تعریف‌خط‌حائل تعریف‌درون‌حاشیه تعریف‌رنگ تعریف‌زیرمیدان تعریف‌سبک \
+تعریف‌سبک‌قلم تعریف‌سر تعریف‌شرح تعریف‌شروع‌پایان تعریف‌شماره‌بندی \
+تعریف‌شمایل‌مرجع تعریف‌شناور تعریف‌شکستن‌ستون تعریف‌شکست‌صفحه تعریف‌طرح‌بندی \
+تعریف‌فرمان تعریف‌قالبی تعریف‌قلم تعریف‌قلم‌خام تعریف‌قلم‌متن \
+تعریف‌لایه تعریف‌لهجه تعریف‌لوح تعریف‌لیست تعریف‌لیست‌ترکیبی \
+تعریف‌لیست‌مرجع تعریف‌مترادفها تعریف‌مترادف‌قلم تعریف‌متغیرمتن تعریف‌متن \
+تعریف‌متن‌قالبی تعریف‌مجموعه‌ستون تعریف‌محیط‌قلم‌بدنه تعریف‌مرجع تعریف‌منوی‌پانل \
+تعریف‌مکان‌متن تعریف‌میدان تعریف‌میدان‌اصلی تعریف‌نسخه تعریف‌نشانه‌گذاری \
+تعریف‌نماد تعریف‌نمادشکل تعریف‌پاراگرافها تعریف‌پروفایل تعریف‌پوشش \
+تعریف‌گروه‌آیتم تعریف‌گروه‌رنگ تعیین‌شماره تعیین‌شماره‌سر تعیین‌متغیر‌متن \
+تعیین‌محتوای‌متن تعیین‌مشخصات‌ثبت تعیین‌مشخصات‌لیست تغییربه‌قلم‌بدنه تغییربه‌قلم‌خام \
+تنظیم‌راست تنظیم‌طرح‌بندی تنظیم‌وسط توجه تورفتگی \
+توری تولید تک ثبت‌زوج ثبت‌کامل \
+جداسازی‌نشانه‌گذاری حاش حرف حرفها حفظ‌بلوکها \
+حقیقت خالی خطهای‌سیاه خطهای‌نازک خطها‌خالی \
+خط‌حاشیه خط‌سیاه خط‌متن خط‌مو خط‌نازک \
+خ‌ا خ‌ع در درج‌آرمها درج‌ثبت \
+درج‌خط درج‌درخط درج‌درخطها درج‌درمتن درج‌درمیدان \
+درج‌در‌بالای‌یکدیگر درج‌در‌توری درج‌راهنما درج‌زیرفرمول درج‌شماره‌سر \
+درج‌شماره‌صفحه درج‌شناور درج‌فرمول درج‌لیست درج‌لیست‌خام \
+درج‌لیست‌مختلط درج‌لیست‌مرجع درج‌متغیرمتن درج‌متن‌سر درج‌پانوشتها \
+درج‌پانوشتهای‌موضعی درج‌چوب‌خط درج‌کنار‌به‌کنار درحاشیه درحاشیه‌دیگر \
+درحاشیه‌راست درحاشیه‌چپ درخارجی درخط درداخلی \
+درراست درصفحه درقالبی درلبه‌راست درلبه‌چپ \
+درمورد درون درپر درچپ دریافت‌بافر \
+دریافت‌شماره دریافت‌نشانه دوران دکمه دکمه‌منو \
+دکمه‌پانل رج رجوع رنگ رنگ‌خاکستری \
+روزهفته ریاضی زبان زبان‌اصلی ستون \
+ستون‌امتحان سر سرپوش‌کوچک‌نه شروع‌آرایش شروع‌آرایش‌ستون \
+شروع‌باریکتر شروع‌بازبینی شروع‌بلوک‌حاشیه شروع‌ترکیب شروع‌تصحیح‌خط \
+شروع‌تطابق شروع‌تنظیم شروع‌تولید شروع‌جدول شروع‌جدولها \
+شروع‌خط شروع‌خطها شروع‌خط‌حاشیه شروع‌خط‌متن شروع‌رنگ \
+شروع‌ستونها شروع‌سراسری شروع‌شماره‌گذاری‌خط شروع‌شکل شروع‌غیر‌فشرده \
+شروع‌فشرده شروع‌متن شروع‌مجموعه‌ستون شروع‌مجموعه‌نماد شروع‌محیط \
+شروع‌مخالف شروع‌موضعی شروع‌مولفه شروع‌مکان‌گذاری شروع‌نسخه \
+شروع‌نقل‌قول شروع‌نوشتار شروع‌پانوشتهای‌موضعی شروع‌پروفایل شروع‌پروژه \
+شروع‌پس‌زمینه شروع‌پوشش شروع‌کد شماره‌افزایش شماره‌زیرصفحه \
+شماره‌زیرفرمول شماره‌سر شماره‌سرجاری شماره‌صفحه شماره‌صفحه‌کامل \
+شماره‌فرمول شماره‌مبدل شماره‌ها شماره‌کاهش شماره‌کل‌صفحه‌ها \
+شکافتن‌شناور شکل‌خارجی صفحه صفحه‌تست صفحه‌زوج \
+صفحه‌پردازش طول‌لیست عبوربلوکها عرض‌آرایش عرض‌برگ \
+عرض‌حاشیه عرض‌حاشیه‌خارجی عرض‌حاشیه‌داخلی عرض‌حاشیه‌راست عرض‌حاشیه‌چپ \
+عرض‌خط عرض‌لبه عرض‌لبه‌خارجی عرض‌لبه‌داخلی عرض‌لبه‌راست \
+عرض‌لبه‌چپ عرض‌لیست عرض‌متن عمق‌صفحه عنوان‌حاشیه \
+فاصله‌بالا فاصله‌ته‌برگ فاصله‌حاشیه فاصله‌حاشیه‌خارجی فاصله‌حاشیه‌داخلی \
+فاصله‌حاشیه‌راست فاصله‌حاشیه‌چپ فاصله‌سربرگ فاصله‌لبه فاصله‌لبه‌خارجی \
+فاصله‌لبه‌داخلی فاصله‌لبه‌راست فاصله‌لبه‌چپ فاصله‌پایین فاصله‌پشت \
+فشرده فضا فضاهای‌ثابت فضای‌بالا فضای‌برش \
+فضای‌ثابت فضای‌سفید فضای‌سفیدصحیح فضای‌پایین فوری‌به‌لیست \
+فوری‌بین‌لیست قالبی لوح‌مقایسه ماه متغیر متن \
+متن‌برچسب متن‌حاشیه متن‌سر متن‌پانوشت محیط \
+مراجعه مرجع مرجع‌صفحه مرجع‌متن مرحله‌سر \
+مسکن معنی‌واحد مقایسه‌گروه‌رنگ مقدارخاکستری مقداررنگ \
+مقیاس منفی منوی‌پانل مولفه مکان \
+مکان‌متن میدان میدانهای‌گزارش میدان‌شبیه‌سازی میدان‌پشته \
+میدان‌کپی میله‌تطابق میله‌رنگ میله‌پانل ناشناس \
+نام‌ماکرو نسخه نسخه‌نشانه نشانه‌گذاری نشانه‌گذاری‌زوج \
+نشر نصب‌زبان نقطه‌ها نقل نقل‌قول \
+نم نماد نمادسر نمادلیست نمایش‌آرایش \
+نمایش‌بارگذاریها نمایش‌بستها نمایش‌توری نمایش‌رنگ نمایش‌شکلهای‌خارجی \
+نمایش‌طرح‌بندی نمایش‌قالب نمایش‌قلم‌بدنه نمایش‌لوح نمایش‌مجموعه‌علامت \
+نمایش‌محیط‌قلم‌بدنه نمایش‌میدانها نمایش‌چاپ نمایش‌گروه‌رنگ نوشتارزوج \
+هدایت پا پابا پانوشت پایان‌آرایش \
+پایان‌آرایش‌ستون پایان‌بازبینی پایان‌بلوک‌حاشیه پایان‌ترکیب پایان‌تصحیح‌خط \
+پایان‌تطابق پایان‌تنظیم پایان‌تولید پایان‌جدول پایان‌جدولها \
+پایان‌خط پایان‌خطها پایان‌خط‌حاشیه پایان‌خط‌متن پایان‌رنگ \
+پایان‌ستونها پایان‌سراسری پایان‌شماره‌گذاری‌خط پایان‌غیرفشرده پایان‌فشرده \
+پایان‌متن پایان‌مجموعه‌ستون پایان‌محیط پایان‌مخالف پایان‌موضعی \
+پایان‌مولفه پایان‌مکان‌گذاری پایان‌نازکتر پایان‌نسخه پایان‌نقل‌قول \
+پایان‌نوشتار پایان‌پانوشتهای‌موضعی پایان‌پروفایل پایان‌پروژه پایان‌پس‌زمینه \
+پایان‌پوشش پایان‌کد پایین پرده پروژه \
+پرکردن‌میدان پس‌زمینه پیروی‌نسخه پیروی‌نسخه‌پروفایل پیروی‌پروفایل \
+چاپ‌ارتفاع‌برگ چاپ‌عرض‌برگ چوبخط چپ‌چین کاغذزوج \
+کسر کشیده کلمه‌حاشیه کلمه‌راست گیره \
+یادداشت یک‌جا یک‌خط 
 
diff --git a/context/data/scite/scite-context-data-metapost.properties b/context/data/scite/scite-context-data-metapost.properties
index c07103324..a51f4d9ad 100644
--- a/context/data/scite/scite-context-data-metapost.properties
+++ b/context/data/scite/scite-context-data-metapost.properties
@@ -1,3 +1,10 @@
+keywordclass.metapost.tex=\
+btex etex verbatimtex 
+
+keywordclass.metapost.shortcuts=\
+.. ... -- --- \
+& 
+
 keywordclass.metapost.primitives=\
 charcode day linecap linejoin \
 miterlimit month pausing prologues showstopping \
@@ -82,13 +89,6 @@ yellow black white background graypart \
 graycolor mm pt dd bp \
 cm pc cc in 
 
-keywordclass.metapost.tex=\
-btex etex verbatimtex 
-
-keywordclass.metapost.shortcuts=\
-.. ... -- --- \
-& 
-
 keywordclass.metapost.internals=\
 mitered rounded beveled butt \
 squared eps epsilon infinity bboxmargin \
diff --git a/context/data/scite/scite-context-data-tex.properties b/context/data/scite/scite-context-data-tex.properties
index cb258795e..c43a5356a 100644
--- a/context/data/scite/scite-context-data-tex.properties
+++ b/context/data/scite/scite-context-data-tex.properties
@@ -1,42 +1,18 @@
+keywordclass.tex.omega=\
+OmegaVersion bodydir chardp charht \
+charit charwd leftghost localbrokenpenalty localinterlinepenalty \
+localleftbox localrightbox mathdir odelcode odelimiter \
+omathaccent omathchar omathchardef omathcode oradical \
+pagedir pageheight pagewidth pardir rightghost \
+textdir 
+
 keywordclass.tex.xetex=\
 XeTeXversion 
 
-keywordclass.tex.luatex=\
-Udelcode Udelcodenum Udelimiter Udelimiterover \
-Udelimiterunder Umathaccent Umathaxis Umathbinbinspacing Umathbinclosespacing \
-Umathbininnerspacing Umathbinopenspacing Umathbinopspacing Umathbinordspacing Umathbinpunctspacing \
-Umathbinrelspacing Umathchar Umathchardef Umathcharnum Umathclosebinspacing \
-Umathcloseclosespacing Umathcloseinnerspacing Umathcloseopenspacing Umathcloseopspacing Umathcloseordspacing \
-Umathclosepunctspacing Umathcloserelspacing Umathcode Umathcodenum Umathconnectoroverlapmin \
-Umathfractiondelsize Umathfractiondenomdown Umathfractiondenomvgap Umathfractionnumup Umathfractionnumvgap \
-Umathfractionrule Umathinnerbinspacing Umathinnerclosespacing Umathinnerinnerspacing Umathinneropenspacing \
-Umathinneropspacing Umathinnerordspacing Umathinnerpunctspacing Umathinnerrelspacing Umathlimitabovebgap \
-Umathlimitabovekern Umathlimitabovevgap Umathlimitbelowbgap Umathlimitbelowkern Umathlimitbelowvgap \
-Umathopbinspacing Umathopclosespacing Umathopenbinspacing Umathopenclosespacing Umathopeninnerspacing \
-Umathopenopenspacing Umathopenopspacing Umathopenordspacing Umathopenpunctspacing Umathopenrelspacing \
-Umathoperatorsize Umathopinnerspacing Umathopopenspacing Umathopopspacing Umathopordspacing \
-Umathoppunctspacing Umathoprelspacing Umathordbinspacing Umathordclosespacing Umathordinnerspacing \
-Umathordopenspacing Umathordopspacing Umathordordspacing Umathordpunctspacing Umathordrelspacing \
-Umathoverbarkern Umathoverbarrule Umathoverbarvgap Umathoverdelimiterbgap Umathoverdelimitervgap \
-Umathpunctbinspacing Umathpunctclosespacing Umathpunctinnerspacing Umathpunctopenspacing Umathpunctopspacing \
-Umathpunctordspacing Umathpunctpunctspacing Umathpunctrelspacing Umathquad Umathradicaldegreeafter \
-Umathradicaldegreebefore Umathradicaldegreeraise Umathradicalkern Umathradicalrule Umathradicalvgap \
-Umathrelbinspacing Umathrelclosespacing Umathrelinnerspacing Umathrelopenspacing Umathrelopspacing \
-Umathrelordspacing Umathrelpunctspacing Umathrelrelspacing Umathspaceafterscript Umathstackdenomdown \
-Umathstacknumup Umathstackvgap Umathsubshiftdown Umathsubshiftdrop Umathsubsupshiftdown \
-Umathsubsupvgap Umathsubtopmax Umathsupbottommin Umathsupshiftdrop Umathsupshiftup \
-Umathsupsubbottommax Umathunderbarkern Umathunderbarrule Umathunderbarvgap Umathunderdelimiterbgap \
-Umathunderdelimitervgap Uoverdelimiter Uradical Uroot Ustack \
-Ustartdisplaymath Ustartmath Ustopdisplaymath Ustopmath Usubscript \
-Usuperscript Uunderdelimiter alignmark aligntab attribute \
-attributedef catcodetable clearmarks crampeddisplaystyle crampedscriptscriptstyle \
-crampedscriptstyle crampedtextstyle fontid formatname gleaders \
-ifabsdim ifabsnum ifprimitive initcatcodetable latelua \
-luaescapestring luastartup luatexdatestamp luatexrevision luatexversion \
-mathstyle nokerns noligs outputbox pageleftoffset \
-pagetopoffset postexhyphenchar posthyphenchar preexhyphenchar prehyphenchar \
-primitive savecatcodetable scantextokens suppressfontnotfounderror suppressifcsnameerror \
-suppresslongerror suppressoutererror synctex 
+keywordclass.tex.aleph=\
+AlephVersion Alephminorversion Alephrevision Alephversion \
+Omegaminorversion Omegarevision Omegaversion boxdir pagebottomoffset \
+pagerightoffset 
 
 keywordclass.tex.tex=\
 - / AlephVersion Alephminorversion \
@@ -183,19 +159,6 @@ vskip vsplit vss vtop wd \
 widowpenalties widowpenalty write xdef xleaders \
 xspaceskip year 
 
-keywordclass.tex.omega=\
-OmegaVersion bodydir chardp charht \
-charit charwd leftghost localbrokenpenalty localinterlinepenalty \
-localleftbox localrightbox mathdir odelcode odelimiter \
-omathaccent omathchar omathchardef omathcode oradical \
-pagedir pageheight pagewidth pardir rightghost \
-textdir 
-
-keywordclass.tex.aleph=\
-AlephVersion Alephminorversion Alephrevision Alephversion \
-Omegaminorversion Omegarevision Omegaversion boxdir pagebottomoffset \
-pagerightoffset 
-
 keywordclass.tex.pdftex=\
 efcode expanded ifincsname ifpdfabsdim \
 ifpdfabsnum ifpdfprimitive leftmarginkern letterspacefont lpcode \
@@ -236,3 +199,40 @@ showtokens splitbotmarks splitdiscards splitfirstmarks topmarks \
 tracingassigns tracinggroups tracingifs tracingnesting tracingscantokens \
 unexpanded unless widowpenalties 
 
+keywordclass.tex.luatex=\
+Udelcode Udelcodenum Udelimiter Udelimiterover \
+Udelimiterunder Umathaccent Umathaxis Umathbinbinspacing Umathbinclosespacing \
+Umathbininnerspacing Umathbinopenspacing Umathbinopspacing Umathbinordspacing Umathbinpunctspacing \
+Umathbinrelspacing Umathchar Umathchardef Umathcharnum Umathclosebinspacing \
+Umathcloseclosespacing Umathcloseinnerspacing Umathcloseopenspacing Umathcloseopspacing Umathcloseordspacing \
+Umathclosepunctspacing Umathcloserelspacing Umathcode Umathcodenum Umathconnectoroverlapmin \
+Umathfractiondelsize Umathfractiondenomdown Umathfractiondenomvgap Umathfractionnumup Umathfractionnumvgap \
+Umathfractionrule Umathinnerbinspacing Umathinnerclosespacing Umathinnerinnerspacing Umathinneropenspacing \
+Umathinneropspacing Umathinnerordspacing Umathinnerpunctspacing Umathinnerrelspacing Umathlimitabovebgap \
+Umathlimitabovekern Umathlimitabovevgap Umathlimitbelowbgap Umathlimitbelowkern Umathlimitbelowvgap \
+Umathopbinspacing Umathopclosespacing Umathopenbinspacing Umathopenclosespacing Umathopeninnerspacing \
+Umathopenopenspacing Umathopenopspacing Umathopenordspacing Umathopenpunctspacing Umathopenrelspacing \
+Umathoperatorsize Umathopinnerspacing Umathopopenspacing Umathopopspacing Umathopordspacing \
+Umathoppunctspacing Umathoprelspacing Umathordbinspacing Umathordclosespacing Umathordinnerspacing \
+Umathordopenspacing Umathordopspacing Umathordordspacing Umathordpunctspacing Umathordrelspacing \
+Umathoverbarkern Umathoverbarrule Umathoverbarvgap Umathoverdelimiterbgap Umathoverdelimitervgap \
+Umathpunctbinspacing Umathpunctclosespacing Umathpunctinnerspacing Umathpunctopenspacing Umathpunctopspacing \
+Umathpunctordspacing Umathpunctpunctspacing Umathpunctrelspacing Umathquad Umathradicaldegreeafter \
+Umathradicaldegreebefore Umathradicaldegreeraise Umathradicalkern Umathradicalrule Umathradicalvgap \
+Umathrelbinspacing Umathrelclosespacing Umathrelinnerspacing Umathrelopenspacing Umathrelopspacing \
+Umathrelordspacing Umathrelpunctspacing Umathrelrelspacing Umathspaceafterscript Umathstackdenomdown \
+Umathstacknumup Umathstackvgap Umathsubshiftdown Umathsubshiftdrop Umathsubsupshiftdown \
+Umathsubsupvgap Umathsubtopmax Umathsupbottommin Umathsupshiftdrop Umathsupshiftup \
+Umathsupsubbottommax Umathunderbarkern Umathunderbarrule Umathunderbarvgap Umathunderdelimiterbgap \
+Umathunderdelimitervgap Uoverdelimiter Uradical Uroot Ustack \
+Ustartdisplaymath Ustartmath Ustopdisplaymath Ustopmath Usubscript \
+Usuperscript Uunderdelimiter alignmark aligntab attribute \
+attributedef catcodetable clearmarks crampeddisplaystyle crampedscriptscriptstyle \
+crampedscriptstyle crampedtextstyle fontid formatname gleaders \
+ifabsdim ifabsnum ifprimitive initcatcodetable latelua \
+luaescapestring luastartup luatexdatestamp luatexrevision luatexversion \
+mathstyle nokerns noligs outputbox pageleftoffset \
+pagetopoffset postexhyphenchar posthyphenchar preexhyphenchar prehyphenchar \
+primitive savecatcodetable scantextokens suppressfontnotfounderror suppressifcsnameerror \
+suppresslongerror suppressoutererror synctex 
+
diff --git a/context/data/scite/scite-context-external.properties b/context/data/scite/scite-context-external.properties
index 2bca111b4..5c7149341 100644
--- a/context/data/scite/scite-context-external.properties
+++ b/context/data/scite/scite-context-external.properties
@@ -35,14 +35,24 @@ file.patterns.cweb=*.h;*.c;*.w;*.hh;*.cc;*.ww;*.hpp;*.cpp;*.hxx;*.cxx;
 lexer.$(file.patterns.metapost)=lpeg_scite-context-lexer-mps
 lexer.$(file.patterns.metafun)=lpeg_scite-context-lexer-mps
 lexer.$(file.patterns.context)=lpeg_scite-context-lexer-tex
-lexer.$(file.patterns.tex)=lpeg_scite-context-lexer-tex
 lexer.$(file.patterns.lua)=lpeg_scite-context-lexer-lua
 lexer.$(file.patterns.example)=lpeg_scite-context-lexer-xml
 lexer.$(file.patterns.text)=lpeg_scite-context-lexer-txt
 lexer.$(file.patterns.pdf)=lpeg_scite-context-lexer-pdf
 lexer.$(file.patterns.cweb)=lpeg_scite-context-lexer-web
+
+lexer.$(file.patterns.tex)=lpeg_scite-context-lexer-tex
+lexer.$(file.patterns.xml)=lpeg_scite-context-lexer-xml
+lexer.$(file.patterns.html)=lpeg_scite-context-lexer-xml
 lexer.$(file.patterns.cpp)=lpeg_scite-context-lexer-web
 
+# It's a real pitty that we cannot overload the errorlist lexer. That would
+# make scite even more interesting. Add to that including lpeg and the lpeg
+# lexer and thereby providing an interface to properties.
+
+# lexer.errorlist=lpeg_scite-context-lexer-txt
+# lexer.output=lpeg_scite-context-lexer-txt
+
 comment.block.lpeg_scite-context-lexer-tex=%
 comment.block.at.line.start.lpeg_scite-context-lexer-tex=1
 
diff --git a/context/data/scite/scite-context-internal.properties b/context/data/scite/scite-context-internal.properties
index 92806b8e2..130e64f1e 100644
--- a/context/data/scite/scite-context-internal.properties
+++ b/context/data/scite/scite-context-internal.properties
@@ -80,3 +80,7 @@ lexer.context.auto.if=1
 
 lexer.$(file.patterns.context)=tex
 lexer.$(file.patterns.tex)=tex
+
+lexer.$(file.patterns.example)=xml
+lexer.$(file.patterns.lua)=lua
+lexer.$(file.patterns.metafun)=metapost
diff --git a/context/data/scite/scite-context.properties b/context/data/scite/scite-context.properties
index 773ccea8b..995c1299c 100644
--- a/context/data/scite/scite-context.properties
+++ b/context/data/scite/scite-context.properties
@@ -64,21 +64,16 @@ open.suffix.$(file.patterns.context)=.tex
 
 file.patterns.xml=
 file.patterns.example=*.xml;*.xsl;*.xsd;*.fo;*.exa;*.rlb;*.rlg;*.rlv;*.rng;*.xfdf;*.xslt;*.dtd;*.lmx;*.htm;*.html;*.ctx;*.export;
-
 open.suffix.$(file.patterns.example)=.xml
-
 filter.example=eXaMpLe|$(file.patterns.example)|
-
-lexer.$(file.patterns.example)=xml
+#~ lexer.$(file.patterns.example)=xml
 
 # Lua : patterns
 
 file.patterns.lua=*.lua;*.luc;*.cld;*.tuc;*.luj;*.lum;*.tma;*.lfg;*.luv;*.lui
-
 open.suffix.$(file.patterns.lua)=.lua
-
 filter.lua=Lua MkIV|$(file.patterns.lua)|
-lexer.$(file.patterns.lua)=lua
+#~ lexer.$(file.patterns.lua)=lua
 
 command.compile.$(file.patterns.lua)=mtxrun --script "$(FileNameExt)"
 command.go.$(file.patterns.lua)=mtxrun --script "$(FileNameExt)"
@@ -90,15 +85,12 @@ command.go.$(file.patterns.lua)=mtxrun --script "$(FileNameExt)"
 # Test: patterns
 
 file.patterns.text=*.txt
-
 filter.text=Text |$(file.patterns.text)|
+# lexer.$(file.patterns.txt)=txt
 
 file.patterns.pdf=*.pdf
-
 filter.pdf=PDF |$(file.patterns.pdf)|
 
-# lexer.$(file.patterns.txt)=txt
-
 # Commands: some scripts
 
 if PLAT_WIN
@@ -557,13 +549,9 @@ style.errorlist.16=fore:$(colors.red)
 
 # Metapost: patterns
 
-file.patterns.metafun=
-
 file.patterns.metafun=*.mp;*.mpx;*.mpy;*.mpii;*.mpiv
-
 filter.metafun=MetaFun|$(file.patterns.metafun)|
-
-lexer.$(file.patterns.metafun)=metapost
+#~ lexer.$(file.patterns.metafun)=metapost
 
 command.compile.$(file.patterns.metafun)=
 command.build.$(file.patterns.metafun)=$(name.context.mtxrun) --script context $(name.flag.pdfopen) $(FileNameExt)
diff --git a/metapost/context/base/mp-grap.mpiv b/metapost/context/base/mp-grap.mpiv
index 98f537315..bc02e8610 100644
--- a/metapost/context/base/mp-grap.mpiv
+++ b/metapost/context/base/mp-grap.mpiv
@@ -11,6 +11,8 @@
 %C therefore copyrighted by \PRAGMA. See licen-en.pdf for
 %C details.
 
+% maybe we should have another Gerr ... something grph_error_message
+
 if known context_grap : endinput ; fi ;
 
 boolean context_grap ; context_grap := true ;
@@ -130,7 +132,7 @@ for i = 3 upto 9 :                  % polygons
     grap_sym[i] :=
         for j = 0 upto i-1 :
             (up scaled .5) rotated (360j/i) --
-    endfor cycle ;
+        endfor cycle ;
 endfor
 
 grap_sym[12] := grap_sym[2] rotated +90 ;   % horizontal line
@@ -203,3 +205,172 @@ def plotsymbol(expr n,c,f) = % (number,color,color|number)
         nullpicture
     fi
 enddef ;
+
+% Here starts a section with some extensions that come in handy when drawing
+% polynomials. We assume that metapost is run in double number mode.
+
+% Least-squares "fit" to a polynomial
+%
+% Example of use:
+%
+%   path p[] ;
+%   numeric a[] ; a0 := 1 ; a1 := .1 ; a2 := .01 ; a3 := .001 ; a4 := 0.0001 ;
+%   for i=0 upto 10:
+%       x1 := 5i/10 ;
+%       y1 := poly.a(4,x1) ;
+%       augment.p0(z1) ;
+%       augment.p1((x1,y1+.005normaldeviate)) ;
+%   endfor
+%   gdraw p0 ;
+%   gdraw p1 plot plotsymbol(1,black,.5) ;
+%
+%   numeric chisq, b[] ;
+%   polyfit.p1(chisq, b, 4) ;
+%   for i=0 upto length p1 :
+%       x1 := xpart(point i of p1) ;
+%       y1 := poly.b(4,x1) ;
+%       augment.p2(z1) ;
+%   endfor
+%   gdraw p2 ;
+%
+%   numeric c[] ;
+%   linefit.p1(chisq, c) ;
+%   for i=0 upto length p1 :
+%       x1 := xpart(point i of p1) ;
+%       y1 := line.c(x1) ;
+%       augment.p3(z1) ;
+%   endfor
+%   gdraw p3 dashed evenly ;
+
+vardef det@# (expr n) = % find the determinant of a (n+1)*(n+1) matrix
+    % indices run from 0 to n.
+    % first, we make a copy so as not to corrupt the matrix.
+    save copy ; numeric copy[][] ;
+    for k=0 upto n :
+        for j=0 upto n :
+            copy[k][j] := @#[k][j] ;
+        endfor
+    endfor
+    numeric determinant, jj ; determinant := 1 ;
+    boolean zero ; zero := false ;
+    for k=0 upto n :
+        if copy[k][k] = 0 :
+            for 0 = k upto n :
+                if copy[k][j]=0 :
+                    zero := true ;
+                else :
+                    jj := j ;
+                fi
+                exitunless zero ;
+            endfor
+            if zero :
+                determinant := 0 ;
+            fi
+            exitif zero ;
+            for j = k upto n : % interchange the columns
+                temp := copy[j][jj] ;
+                copy[j][jj] := copy[j][k] ;
+                copy[j][k] := temp ;
+            endfor
+            determinant = -determinant ;
+        fi
+        exitif zero ;
+        determinant := determinant * copy[k][k] ;
+        if k < n : % subtract row k from lower rows to get a diagonal matrix
+            for j = k + 1 upto n :
+                for i = k + 1 upto n :
+                    copy[j][i] := copy[j][i] - copy[j][k] * copy[k][i] / copy[k][k] ;
+                endfor
+            endfor
+        fi
+    endfor ;
+    determinant % no ;
+enddef ;
+
+% least-squares fit of a polynomial $ of order n to a path @#
+
+vardef polyfit@# (suffix chisq, $) (expr n) =
+    if not path begingroup @# endgroup :
+        Gerr(begingroup @# endgroup, "Cannot fit--not a path") ;
+    elseif length @# < n :
+        Gerr(begingroup @# endgroup, "Cannot fit--not enough points") ;
+    else:
+        chisq := 0 ;
+        % calculate sums of the data
+        save sumx, sumy ; numeric sumx[], sumy[] ;
+        save nmax ; numeric nmax ; nmax := 2*n ;
+        for i = 0 upto nmax :
+            sumx[i] := 0 ;
+        endfor
+        for i = 0 upto n :
+            sumy[i] := 0 ;
+        endfor
+        save xp, yp ; numeric xp, yp ;
+        save zi ; pair zi ;
+        for i = 0 upto length @# :
+            zi := point i of @# ;
+            x0 := xpart zi ; y0 := ypart zi ;
+            x1 := 1 ;
+            for j = 0 upto nmax :
+                sumx[j] := sumx[j] + x1 ;
+                x1 := x1 * x0 ;
+            endfor
+            y1 := y0 ;
+            for j = 0 upto n :
+               sumy[j] := sumy[j] + y1 ;
+               y1 := y1 * x0 ;
+            endfor
+            chisq := chisq + y0*y0 ;
+        endfor
+        % construct matrices and calculate the polynomial coefficients
+        save m ; numeric m[][] ;
+        for j = 0 upto n :
+            for k = 0 upto n :
+                i := j + k ;
+                m[j][k] := sumx[i] ;
+            endfor
+        endfor
+        save delta ; numeric delta ;
+        delta := det.m(n) ;
+        if delta = 0 :
+            chisq := 0 ;
+            for j=0 upto n :
+                $[j] := 0 ;
+            endfor
+        else :
+            for l = 0 upto n :
+                for j = 0 upto n :
+                    for k = 0 upto n :
+                        i := j + k ;
+                        m[j][k] := sumx[i] ;
+                    endfor
+                    m[j][l] := sumy[j] ;
+                endfor
+                $[l] := det.m(n) / delta ;
+            endfor
+            for j = 0 upto n :
+                chisq := chisq - 2*$[j]*sumy[j] ;
+                for k = 0 upto n :
+                    i := j + k ;
+                    chisq := chisq + $[j]*$[k]*sumx[i] ;
+                endfor
+            endfor
+            % normalize by the number of degrees of freedom
+            chisq := chisq / (length(@#) - n) ;
+        fi
+    fi
+enddef ;
+
+vardef poly@#(expr n, x) =
+    for j = 0 upto n :
+        + @#[j]*(x**j)
+    endfor % no ;
+enddef ;
+
+vardef line@#(expr x) =
+    poly@# (1,x)
+enddef ;
+
+vardef linefit@#(suffix chisq, $) =
+    polyfit@#(chisq, $, 1) ;
+enddef ;
diff --git a/scripts/context/lua/mtx-package.lua b/scripts/context/lua/mtx-package.lua
index 294ef4f28..879dd5e3a 100644
--- a/scripts/context/lua/mtx-package.lua
+++ b/scripts/context/lua/mtx-package.lua
@@ -24,18 +24,18 @@ scripts         = scripts         or { }
 messages        = messages        or { }
 scripts.package = scripts.package or { }
 
-function scripts.package.merge_luatex_files(name,strip)
+function scripts.package.merge_luatex_files(name)
     local oldname = resolvers.findfile(name) or ""
     oldname = file.replacesuffix(oldname,"lua")
     if oldname == "" then
-        report("missing '%s'",name)
+        report("missing %q",name)
     else
         local newname = file.removesuffix(oldname) .. "-merged.lua"
         local data = io.loaddata(oldname) or ""
         if data == "" then
-            report("missing '%s'",newname)
+            report("missing %q",newname)
         else
-            report("loading '%s'",oldname)
+            report("loading %q",oldname)
             local collected = { }
             collected[#collected+1] = format("-- merged file : %s\n",newname)
             collected[#collected+1] = format("-- parent file : %s\n",oldname)
@@ -45,23 +45,17 @@ function scripts.package.merge_luatex_files(name,strip)
                 if file.basename(lib) ~= file.basename(newname) then
                     local fullname = resolvers.findfile(lib) or ""
                     if fullname == "" then
-                        report("missing '%s'",lib)
+                        report("missing %q",lib)
                     else
-                        report("fetching '%s'",fullname)
+                        report("fetching %q",fullname)
                         local data = io.loaddata(fullname)
-                        if strip then
-                            data = gsub(data,"%-%-%[%[ldx%-%-.-%-%-%ldx%]%]%-%-[\n\r]*","")
-                            data = gsub(data,"%-%-%~[^\n\r]*[\n\r]*","\n")
-                            data = gsub(data,"%s+%-%-[^\n\r]*[\n\r]*","\n")
-                            data = gsub(data,"[\n\r]+","\n")
-                        end
                         collected[#collected+1] = "\ndo -- begin closure to overcome local limits and interference\n\n"
-                        collected[#collected+1] = data
+                        collected[#collected+1] = utilities.merger.compact(data)
                         collected[#collected+1] = "\nend -- closure\n"
                     end
                 end
             end
-            report("saving '%s'",newname)
+            report("saving %q",newname)
             io.savedata(newname,table.concat(collected))
         end
     end
diff --git a/scripts/context/lua/mtxrun.lua b/scripts/context/lua/mtxrun.lua
index 66b6f5466..6a894df01 100644
--- a/scripts/context/lua/mtxrun.lua
+++ b/scripts/context/lua/mtxrun.lua
@@ -2197,7 +2197,7 @@ end -- of closure
 
 do -- create closure to overcome 200 locals limit
 
--- original size: 13731, stripped down to: 8450
+-- original size: 13891, stripped down to: 8591
 
 if not modules then modules={} end modules ['l-os']={
   version=1.001,
@@ -2319,7 +2319,13 @@ function os.runtime()
 end
 os.resolvers=os.resolvers or {} 
 local resolvers=os.resolvers
-local osmt=getmetatable(os) or { __index=function(t,k) t[k]="unset" return "unset" end } 
+local osmt=getmetatable(os) or { __index=function(t,k)
+  local v=function()
+    print(format("function os.%s in namespace is undefined"))
+  end
+  t[k]=v
+  return v
+end } 
 local osix=osmt.__index
 osmt.__index=function(t,k)
   return (resolvers[k] or osix)(t,k)
@@ -2510,6 +2516,9 @@ end
 function os.now()
   return date("!%Y-%m-%d %H:%M:%S") 
 end
+if not os.sleep and socket then
+  os.sleep=socket.sleep
+end
 
 
 end -- of closure
@@ -4817,7 +4826,7 @@ end -- of closure
 
 do -- create closure to overcome 200 locals limit
 
--- original size: 7158, stripped down to: 5738
+-- original size: 7245, stripped down to: 5822
 
 if not modules then modules={} end modules ['util-mrg']={
   version=1.001,
@@ -4890,6 +4899,9 @@ local compact=Cs ((
 )^1 )
 local strip=Cs((emptyline^2/"\n"+1)^0)
 local stripreturn=Cs((1-P("return")*space^1*P(1-space-eol)^1*(space+eol)^0*P(-1))^1)
+function merger.compact(data)
+  return lpegmatch(strip,lpegmatch(compact,data))
+end
 local function self_compact(data)
   local delta=0
   if merger.strip_comment then
@@ -7051,23 +7063,19 @@ end -- of closure
 
 do -- create closure to overcome 200 locals limit
 
--- original size: 12282, stripped down to: 8098
+-- original size: 7702, stripped down to: 4701
 
-if not modules then modules={} end modules ['luat-env']={
+if not modules then modules={} end modules ['util-env']={
   version=1.001,
   comment="companion to luat-lib.mkiv",
   author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
   copyright="PRAGMA ADE / ConTeXt Development Team",
   license="see context related readme files"
 }
-local trace_locating=false trackers.register("resolvers.locating",function(v) trace_locating=v end)
-local report_lua=logs.reporter("resolvers","lua")
 local allocate,mark=utilities.storage.allocate,utilities.storage.mark
 local format,sub,match,gsub,find=string.format,string.sub,string.match,string.gsub,string.find
 local unquoted,quoted=string.unquoted,string.quoted
 local concat,insert,remove=table.concat,table.insert,table.remove
-local luautilities=utilities.lua
-local luasuffixes=luautilities.suffixes
 environment=environment or {}
 local environment=environment
 os.setlocale(nil,nil) 
@@ -7084,18 +7092,25 @@ local basicengines=allocate {
   ["luajittex"]="luajittex",
   ["texluajit"]="luajittex",
 }
+local luaengines=allocate {
+  ["lua"]=true,
+  ["luajit"]=true,
+}
 environment.validengines=validengines
 environment.basicengines=basicengines
-if arg and validengines[file.removesuffix(arg[0])] and arg[1]=="--luaonly" then
-  arg[-1]=arg[0]
-  arg[ 0]=arg[2]
-  for k=3,#arg do
-    arg[k-2]=arg[k]
+if not arg then
+elseif luaengines[file.removesuffix(arg[-1])] then
+elseif validengines[file.removesuffix(arg[0])] then
+  if arg[1]=="--luaonly" then
+    arg[-1]=arg[0]
+    arg[ 0]=arg[2]
+    for k=3,#arg do
+      arg[k-2]=arg[k]
+    end
+    remove(arg) 
+    remove(arg) 
+  else
   end
-  remove(arg) 
-  remove(arg) 
-end
-do
   local originalzero=file.basename(arg[0])
   local specialmapping={ luatools=="base" }
   if originalzero~="mtxrun" and originalzero~="mtxrun.lua" then
@@ -7107,32 +7122,6 @@ end
 environment.arguments=allocate()
 environment.files=allocate()
 environment.sortedflags=nil
-local mt={
-  __index=function(_,k)
-    if k=="version" then
-      local version=tex.toks and tex.toks.contextversiontoks
-      if version and version~="" then
-        rawset(environment,"version",version)
-        return version
-      else
-        return "unknown"
-      end
-    elseif k=="jobname" or k=="formatname" then
-      local name=tex and tex[k]
-      if name or name=="" then
-        rawset(environment,k,name)
-        return name
-      else
-        return "unknown"
-      end
-    elseif k=="outputfilename" then
-      local name=environment.jobname
-      rawset(environment,k,name)
-      return name
-    end
-  end
-}
-setmetatable(environment,mt)
 function environment.initializearguments(arg)
   local arguments,files={},{}
   environment.arguments,environment.files,environment.sortedflags=arguments,files,nil
@@ -7247,6 +7236,53 @@ if arg then
   environment.rawarguments=mark(arg)
   arg={} 
 end
+
+
+end -- of closure
+
+do -- create closure to overcome 200 locals limit
+
+-- original size: 5441, stripped down to: 3874
+
+ if not modules then modules={} end modules ['luat-env']={
+  version=1.001,
+  comment="companion to luat-lib.mkiv",
+  author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+  copyright="PRAGMA ADE / ConTeXt Development Team",
+  license="see context related readme files"
+}
+local trace_locating=false trackers.register("resolvers.locating",function(v) trace_locating=v end)
+local report_lua=logs.reporter("resolvers","lua")
+local luautilities=utilities.lua
+local luasuffixes=luautilities.suffixes
+environment=environment or {}
+local environment=environment
+local mt={
+  __index=function(_,k)
+    if k=="version" then
+      local version=tex.toks and tex.toks.contextversiontoks
+      if version and version~="" then
+        rawset(environment,"version",version)
+        return version
+      else
+        return "unknown"
+      end
+    elseif k=="jobname" or k=="formatname" then
+      local name=tex and tex[k]
+      if name or name=="" then
+        rawset(environment,k,name)
+        return name
+      else
+        return "unknown"
+      end
+    elseif k=="outputfilename" then
+      local name=environment.jobname
+      rawset(environment,k,name)
+      return name
+    end
+  end
+}
+setmetatable(environment,mt)
 function environment.texfile(filename)
   return resolvers.findfile(filename,'tex')
 end
@@ -14763,10 +14799,10 @@ end
 
 end -- of closure
 
--- used libraries    : l-lua.lua l-lpeg.lua l-function.lua l-string.lua l-table.lua l-io.lua l-number.lua l-set.lua l-os.lua l-file.lua l-md5.lua l-url.lua l-dir.lua l-boolean.lua l-unicode.lua l-math.lua util-tab.lua util-sto.lua util-str.lua util-mrg.lua util-lua.lua util-prs.lua util-fmt.lua util-deb.lua trac-inf.lua trac-set.lua trac-log.lua trac-pro.lua util-tpl.lua luat-env.lua lxml-tab.lua lxml-lpt.lua lxml-mis.lua lxml-aux.lua lxml-xml.lua data-ini.lua data-exp.lua data-env.lua data-tmp.lua data-met.lua data-res.lua data-pre.lua data-inp.lua data-out.lua data-fil.lua data-con.lua data-use.lua data-zip.lua data-tre.lua data-sch.lua data-lua.lua data-aux.lua data-tmf.lua data-lst.lua luat-sta.lua luat-fmt.lua
+-- used libraries    : l-lua.lua l-lpeg.lua l-function.lua l-string.lua l-table.lua l-io.lua l-number.lua l-set.lua l-os.lua l-file.lua l-md5.lua l-url.lua l-dir.lua l-boolean.lua l-unicode.lua l-math.lua util-tab.lua util-sto.lua util-str.lua util-mrg.lua util-lua.lua util-prs.lua util-fmt.lua util-deb.lua trac-inf.lua trac-set.lua trac-log.lua trac-pro.lua util-tpl.lua util-env.lua luat-env.lua lxml-tab.lua lxml-lpt.lua lxml-mis.lua lxml-aux.lua lxml-xml.lua data-ini.lua data-exp.lua data-env.lua data-tmp.lua data-met.lua data-res.lua data-pre.lua data-inp.lua data-out.lua data-fil.lua data-con.lua data-use.lua data-zip.lua data-tre.lua data-sch.lua data-lua.lua data-aux.lua data-tmf.lua data-lst.lua luat-sta.lua luat-fmt.lua
 -- skipped libraries : -
--- original bytes    : 593245
--- stripped bytes    : 199776
+-- original bytes    : 594353
+-- stripped bytes    : 200182
 
 -- end library merge
 
@@ -14822,6 +14858,7 @@ local ownlibs = { -- order can be made better
 
     'util-tpl.lua',
 
+    'util-env.lua',
     'luat-env.lua', -- can come before inf (as in mkiv)
 
     'lxml-tab.lua',
@@ -16019,7 +16056,6 @@ elseif environment.files[1] == 'texmfcnf.lua' then -- so that we don't need to l
     resolvers.listers.configurations()
 
 else
-
     runners.loadbase()
     runners.execute_ctx_script("mtx-base",filename)
 
diff --git a/scripts/context/stubs/mswin/mtxrun.lua b/scripts/context/stubs/mswin/mtxrun.lua
index 66b6f5466..6a894df01 100644
--- a/scripts/context/stubs/mswin/mtxrun.lua
+++ b/scripts/context/stubs/mswin/mtxrun.lua
@@ -2197,7 +2197,7 @@ end -- of closure
 
 do -- create closure to overcome 200 locals limit
 
--- original size: 13731, stripped down to: 8450
+-- original size: 13891, stripped down to: 8591
 
 if not modules then modules={} end modules ['l-os']={
   version=1.001,
@@ -2319,7 +2319,13 @@ function os.runtime()
 end
 os.resolvers=os.resolvers or {} 
 local resolvers=os.resolvers
-local osmt=getmetatable(os) or { __index=function(t,k) t[k]="unset" return "unset" end } 
+local osmt=getmetatable(os) or { __index=function(t,k)
+  local v=function()
+    print(format("function os.%s in namespace is undefined"))
+  end
+  t[k]=v
+  return v
+end } 
 local osix=osmt.__index
 osmt.__index=function(t,k)
   return (resolvers[k] or osix)(t,k)
@@ -2510,6 +2516,9 @@ end
 function os.now()
   return date("!%Y-%m-%d %H:%M:%S") 
 end
+if not os.sleep and socket then
+  os.sleep=socket.sleep
+end
 
 
 end -- of closure
@@ -4817,7 +4826,7 @@ end -- of closure
 
 do -- create closure to overcome 200 locals limit
 
--- original size: 7158, stripped down to: 5738
+-- original size: 7245, stripped down to: 5822
 
 if not modules then modules={} end modules ['util-mrg']={
   version=1.001,
@@ -4890,6 +4899,9 @@ local compact=Cs ((
 )^1 )
 local strip=Cs((emptyline^2/"\n"+1)^0)
 local stripreturn=Cs((1-P("return")*space^1*P(1-space-eol)^1*(space+eol)^0*P(-1))^1)
+function merger.compact(data)
+  return lpegmatch(strip,lpegmatch(compact,data))
+end
 local function self_compact(data)
   local delta=0
   if merger.strip_comment then
@@ -7051,23 +7063,19 @@ end -- of closure
 
 do -- create closure to overcome 200 locals limit
 
--- original size: 12282, stripped down to: 8098
+-- original size: 7702, stripped down to: 4701
 
-if not modules then modules={} end modules ['luat-env']={
+if not modules then modules={} end modules ['util-env']={
   version=1.001,
   comment="companion to luat-lib.mkiv",
   author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
   copyright="PRAGMA ADE / ConTeXt Development Team",
   license="see context related readme files"
 }
-local trace_locating=false trackers.register("resolvers.locating",function(v) trace_locating=v end)
-local report_lua=logs.reporter("resolvers","lua")
 local allocate,mark=utilities.storage.allocate,utilities.storage.mark
 local format,sub,match,gsub,find=string.format,string.sub,string.match,string.gsub,string.find
 local unquoted,quoted=string.unquoted,string.quoted
 local concat,insert,remove=table.concat,table.insert,table.remove
-local luautilities=utilities.lua
-local luasuffixes=luautilities.suffixes
 environment=environment or {}
 local environment=environment
 os.setlocale(nil,nil) 
@@ -7084,18 +7092,25 @@ local basicengines=allocate {
   ["luajittex"]="luajittex",
   ["texluajit"]="luajittex",
 }
+local luaengines=allocate {
+  ["lua"]=true,
+  ["luajit"]=true,
+}
 environment.validengines=validengines
 environment.basicengines=basicengines
-if arg and validengines[file.removesuffix(arg[0])] and arg[1]=="--luaonly" then
-  arg[-1]=arg[0]
-  arg[ 0]=arg[2]
-  for k=3,#arg do
-    arg[k-2]=arg[k]
+if not arg then
+elseif luaengines[file.removesuffix(arg[-1])] then
+elseif validengines[file.removesuffix(arg[0])] then
+  if arg[1]=="--luaonly" then
+    arg[-1]=arg[0]
+    arg[ 0]=arg[2]
+    for k=3,#arg do
+      arg[k-2]=arg[k]
+    end
+    remove(arg) 
+    remove(arg) 
+  else
   end
-  remove(arg) 
-  remove(arg) 
-end
-do
   local originalzero=file.basename(arg[0])
   local specialmapping={ luatools=="base" }
   if originalzero~="mtxrun" and originalzero~="mtxrun.lua" then
@@ -7107,32 +7122,6 @@ end
 environment.arguments=allocate()
 environment.files=allocate()
 environment.sortedflags=nil
-local mt={
-  __index=function(_,k)
-    if k=="version" then
-      local version=tex.toks and tex.toks.contextversiontoks
-      if version and version~="" then
-        rawset(environment,"version",version)
-        return version
-      else
-        return "unknown"
-      end
-    elseif k=="jobname" or k=="formatname" then
-      local name=tex and tex[k]
-      if name or name=="" then
-        rawset(environment,k,name)
-        return name
-      else
-        return "unknown"
-      end
-    elseif k=="outputfilename" then
-      local name=environment.jobname
-      rawset(environment,k,name)
-      return name
-    end
-  end
-}
-setmetatable(environment,mt)
 function environment.initializearguments(arg)
   local arguments,files={},{}
   environment.arguments,environment.files,environment.sortedflags=arguments,files,nil
@@ -7247,6 +7236,53 @@ if arg then
   environment.rawarguments=mark(arg)
   arg={} 
 end
+
+
+end -- of closure
+
+do -- create closure to overcome 200 locals limit
+
+-- original size: 5441, stripped down to: 3874
+
+ if not modules then modules={} end modules ['luat-env']={
+  version=1.001,
+  comment="companion to luat-lib.mkiv",
+  author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+  copyright="PRAGMA ADE / ConTeXt Development Team",
+  license="see context related readme files"
+}
+local trace_locating=false trackers.register("resolvers.locating",function(v) trace_locating=v end)
+local report_lua=logs.reporter("resolvers","lua")
+local luautilities=utilities.lua
+local luasuffixes=luautilities.suffixes
+environment=environment or {}
+local environment=environment
+local mt={
+  __index=function(_,k)
+    if k=="version" then
+      local version=tex.toks and tex.toks.contextversiontoks
+      if version and version~="" then
+        rawset(environment,"version",version)
+        return version
+      else
+        return "unknown"
+      end
+    elseif k=="jobname" or k=="formatname" then
+      local name=tex and tex[k]
+      if name or name=="" then
+        rawset(environment,k,name)
+        return name
+      else
+        return "unknown"
+      end
+    elseif k=="outputfilename" then
+      local name=environment.jobname
+      rawset(environment,k,name)
+      return name
+    end
+  end
+}
+setmetatable(environment,mt)
 function environment.texfile(filename)
   return resolvers.findfile(filename,'tex')
 end
@@ -14763,10 +14799,10 @@ end
 
 end -- of closure
 
--- used libraries    : l-lua.lua l-lpeg.lua l-function.lua l-string.lua l-table.lua l-io.lua l-number.lua l-set.lua l-os.lua l-file.lua l-md5.lua l-url.lua l-dir.lua l-boolean.lua l-unicode.lua l-math.lua util-tab.lua util-sto.lua util-str.lua util-mrg.lua util-lua.lua util-prs.lua util-fmt.lua util-deb.lua trac-inf.lua trac-set.lua trac-log.lua trac-pro.lua util-tpl.lua luat-env.lua lxml-tab.lua lxml-lpt.lua lxml-mis.lua lxml-aux.lua lxml-xml.lua data-ini.lua data-exp.lua data-env.lua data-tmp.lua data-met.lua data-res.lua data-pre.lua data-inp.lua data-out.lua data-fil.lua data-con.lua data-use.lua data-zip.lua data-tre.lua data-sch.lua data-lua.lua data-aux.lua data-tmf.lua data-lst.lua luat-sta.lua luat-fmt.lua
+-- used libraries    : l-lua.lua l-lpeg.lua l-function.lua l-string.lua l-table.lua l-io.lua l-number.lua l-set.lua l-os.lua l-file.lua l-md5.lua l-url.lua l-dir.lua l-boolean.lua l-unicode.lua l-math.lua util-tab.lua util-sto.lua util-str.lua util-mrg.lua util-lua.lua util-prs.lua util-fmt.lua util-deb.lua trac-inf.lua trac-set.lua trac-log.lua trac-pro.lua util-tpl.lua util-env.lua luat-env.lua lxml-tab.lua lxml-lpt.lua lxml-mis.lua lxml-aux.lua lxml-xml.lua data-ini.lua data-exp.lua data-env.lua data-tmp.lua data-met.lua data-res.lua data-pre.lua data-inp.lua data-out.lua data-fil.lua data-con.lua data-use.lua data-zip.lua data-tre.lua data-sch.lua data-lua.lua data-aux.lua data-tmf.lua data-lst.lua luat-sta.lua luat-fmt.lua
 -- skipped libraries : -
--- original bytes    : 593245
--- stripped bytes    : 199776
+-- original bytes    : 594353
+-- stripped bytes    : 200182
 
 -- end library merge
 
@@ -14822,6 +14858,7 @@ local ownlibs = { -- order can be made better
 
     'util-tpl.lua',
 
+    'util-env.lua',
     'luat-env.lua', -- can come before inf (as in mkiv)
 
     'lxml-tab.lua',
@@ -16019,7 +16056,6 @@ elseif environment.files[1] == 'texmfcnf.lua' then -- so that we don't need to l
     resolvers.listers.configurations()
 
 else
-
     runners.loadbase()
     runners.execute_ctx_script("mtx-base",filename)
 
diff --git a/scripts/context/stubs/unix/mtxrun b/scripts/context/stubs/unix/mtxrun
index 66b6f5466..6a894df01 100755
--- a/scripts/context/stubs/unix/mtxrun
+++ b/scripts/context/stubs/unix/mtxrun
@@ -2197,7 +2197,7 @@ end -- of closure
 
 do -- create closure to overcome 200 locals limit
 
--- original size: 13731, stripped down to: 8450
+-- original size: 13891, stripped down to: 8591
 
 if not modules then modules={} end modules ['l-os']={
   version=1.001,
@@ -2319,7 +2319,13 @@ function os.runtime()
 end
 os.resolvers=os.resolvers or {} 
 local resolvers=os.resolvers
-local osmt=getmetatable(os) or { __index=function(t,k) t[k]="unset" return "unset" end } 
+local osmt=getmetatable(os) or { __index=function(t,k)
+  local v=function()
+    print(format("function os.%s in namespace is undefined"))
+  end
+  t[k]=v
+  return v
+end } 
 local osix=osmt.__index
 osmt.__index=function(t,k)
   return (resolvers[k] or osix)(t,k)
@@ -2510,6 +2516,9 @@ end
 function os.now()
   return date("!%Y-%m-%d %H:%M:%S") 
 end
+if not os.sleep and socket then
+  os.sleep=socket.sleep
+end
 
 
 end -- of closure
@@ -4817,7 +4826,7 @@ end -- of closure
 
 do -- create closure to overcome 200 locals limit
 
--- original size: 7158, stripped down to: 5738
+-- original size: 7245, stripped down to: 5822
 
 if not modules then modules={} end modules ['util-mrg']={
   version=1.001,
@@ -4890,6 +4899,9 @@ local compact=Cs ((
 )^1 )
 local strip=Cs((emptyline^2/"\n"+1)^0)
 local stripreturn=Cs((1-P("return")*space^1*P(1-space-eol)^1*(space+eol)^0*P(-1))^1)
+function merger.compact(data)
+  return lpegmatch(strip,lpegmatch(compact,data))
+end
 local function self_compact(data)
   local delta=0
   if merger.strip_comment then
@@ -7051,23 +7063,19 @@ end -- of closure
 
 do -- create closure to overcome 200 locals limit
 
--- original size: 12282, stripped down to: 8098
+-- original size: 7702, stripped down to: 4701
 
-if not modules then modules={} end modules ['luat-env']={
+if not modules then modules={} end modules ['util-env']={
   version=1.001,
   comment="companion to luat-lib.mkiv",
   author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
   copyright="PRAGMA ADE / ConTeXt Development Team",
   license="see context related readme files"
 }
-local trace_locating=false trackers.register("resolvers.locating",function(v) trace_locating=v end)
-local report_lua=logs.reporter("resolvers","lua")
 local allocate,mark=utilities.storage.allocate,utilities.storage.mark
 local format,sub,match,gsub,find=string.format,string.sub,string.match,string.gsub,string.find
 local unquoted,quoted=string.unquoted,string.quoted
 local concat,insert,remove=table.concat,table.insert,table.remove
-local luautilities=utilities.lua
-local luasuffixes=luautilities.suffixes
 environment=environment or {}
 local environment=environment
 os.setlocale(nil,nil) 
@@ -7084,18 +7092,25 @@ local basicengines=allocate {
   ["luajittex"]="luajittex",
   ["texluajit"]="luajittex",
 }
+local luaengines=allocate {
+  ["lua"]=true,
+  ["luajit"]=true,
+}
 environment.validengines=validengines
 environment.basicengines=basicengines
-if arg and validengines[file.removesuffix(arg[0])] and arg[1]=="--luaonly" then
-  arg[-1]=arg[0]
-  arg[ 0]=arg[2]
-  for k=3,#arg do
-    arg[k-2]=arg[k]
+if not arg then
+elseif luaengines[file.removesuffix(arg[-1])] then
+elseif validengines[file.removesuffix(arg[0])] then
+  if arg[1]=="--luaonly" then
+    arg[-1]=arg[0]
+    arg[ 0]=arg[2]
+    for k=3,#arg do
+      arg[k-2]=arg[k]
+    end
+    remove(arg) 
+    remove(arg) 
+  else
   end
-  remove(arg) 
-  remove(arg) 
-end
-do
   local originalzero=file.basename(arg[0])
   local specialmapping={ luatools=="base" }
   if originalzero~="mtxrun" and originalzero~="mtxrun.lua" then
@@ -7107,32 +7122,6 @@ end
 environment.arguments=allocate()
 environment.files=allocate()
 environment.sortedflags=nil
-local mt={
-  __index=function(_,k)
-    if k=="version" then
-      local version=tex.toks and tex.toks.contextversiontoks
-      if version and version~="" then
-        rawset(environment,"version",version)
-        return version
-      else
-        return "unknown"
-      end
-    elseif k=="jobname" or k=="formatname" then
-      local name=tex and tex[k]
-      if name or name=="" then
-        rawset(environment,k,name)
-        return name
-      else
-        return "unknown"
-      end
-    elseif k=="outputfilename" then
-      local name=environment.jobname
-      rawset(environment,k,name)
-      return name
-    end
-  end
-}
-setmetatable(environment,mt)
 function environment.initializearguments(arg)
   local arguments,files={},{}
   environment.arguments,environment.files,environment.sortedflags=arguments,files,nil
@@ -7247,6 +7236,53 @@ if arg then
   environment.rawarguments=mark(arg)
   arg={} 
 end
+
+
+end -- of closure
+
+do -- create closure to overcome 200 locals limit
+
+-- original size: 5441, stripped down to: 3874
+
+ if not modules then modules={} end modules ['luat-env']={
+  version=1.001,
+  comment="companion to luat-lib.mkiv",
+  author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+  copyright="PRAGMA ADE / ConTeXt Development Team",
+  license="see context related readme files"
+}
+local trace_locating=false trackers.register("resolvers.locating",function(v) trace_locating=v end)
+local report_lua=logs.reporter("resolvers","lua")
+local luautilities=utilities.lua
+local luasuffixes=luautilities.suffixes
+environment=environment or {}
+local environment=environment
+local mt={
+  __index=function(_,k)
+    if k=="version" then
+      local version=tex.toks and tex.toks.contextversiontoks
+      if version and version~="" then
+        rawset(environment,"version",version)
+        return version
+      else
+        return "unknown"
+      end
+    elseif k=="jobname" or k=="formatname" then
+      local name=tex and tex[k]
+      if name or name=="" then
+        rawset(environment,k,name)
+        return name
+      else
+        return "unknown"
+      end
+    elseif k=="outputfilename" then
+      local name=environment.jobname
+      rawset(environment,k,name)
+      return name
+    end
+  end
+}
+setmetatable(environment,mt)
 function environment.texfile(filename)
   return resolvers.findfile(filename,'tex')
 end
@@ -14763,10 +14799,10 @@ end
 
 end -- of closure
 
--- used libraries    : l-lua.lua l-lpeg.lua l-function.lua l-string.lua l-table.lua l-io.lua l-number.lua l-set.lua l-os.lua l-file.lua l-md5.lua l-url.lua l-dir.lua l-boolean.lua l-unicode.lua l-math.lua util-tab.lua util-sto.lua util-str.lua util-mrg.lua util-lua.lua util-prs.lua util-fmt.lua util-deb.lua trac-inf.lua trac-set.lua trac-log.lua trac-pro.lua util-tpl.lua luat-env.lua lxml-tab.lua lxml-lpt.lua lxml-mis.lua lxml-aux.lua lxml-xml.lua data-ini.lua data-exp.lua data-env.lua data-tmp.lua data-met.lua data-res.lua data-pre.lua data-inp.lua data-out.lua data-fil.lua data-con.lua data-use.lua data-zip.lua data-tre.lua data-sch.lua data-lua.lua data-aux.lua data-tmf.lua data-lst.lua luat-sta.lua luat-fmt.lua
+-- used libraries    : l-lua.lua l-lpeg.lua l-function.lua l-string.lua l-table.lua l-io.lua l-number.lua l-set.lua l-os.lua l-file.lua l-md5.lua l-url.lua l-dir.lua l-boolean.lua l-unicode.lua l-math.lua util-tab.lua util-sto.lua util-str.lua util-mrg.lua util-lua.lua util-prs.lua util-fmt.lua util-deb.lua trac-inf.lua trac-set.lua trac-log.lua trac-pro.lua util-tpl.lua util-env.lua luat-env.lua lxml-tab.lua lxml-lpt.lua lxml-mis.lua lxml-aux.lua lxml-xml.lua data-ini.lua data-exp.lua data-env.lua data-tmp.lua data-met.lua data-res.lua data-pre.lua data-inp.lua data-out.lua data-fil.lua data-con.lua data-use.lua data-zip.lua data-tre.lua data-sch.lua data-lua.lua data-aux.lua data-tmf.lua data-lst.lua luat-sta.lua luat-fmt.lua
 -- skipped libraries : -
--- original bytes    : 593245
--- stripped bytes    : 199776
+-- original bytes    : 594353
+-- stripped bytes    : 200182
 
 -- end library merge
 
@@ -14822,6 +14858,7 @@ local ownlibs = { -- order can be made better
 
     'util-tpl.lua',
 
+    'util-env.lua',
     'luat-env.lua', -- can come before inf (as in mkiv)
 
     'lxml-tab.lua',
@@ -16019,7 +16056,6 @@ elseif environment.files[1] == 'texmfcnf.lua' then -- so that we don't need to l
     resolvers.listers.configurations()
 
 else
-
     runners.loadbase()
     runners.execute_ctx_script("mtx-base",filename)
 
diff --git a/tex/context/base/cont-new.mkii b/tex/context/base/cont-new.mkii
index 5a9ea173a..ad44564be 100644
--- a/tex/context/base/cont-new.mkii
+++ b/tex/context/base/cont-new.mkii
@@ -11,7 +11,7 @@
 %C therefore copyrighted by \PRAGMA. See mreadme.pdf for
 %C details.
 
-\newcontextversion{2013.01.31 22:47}
+\newcontextversion{2013.02.05 13:35}
 
 %D This file is loaded at runtime, thereby providing an
 %D excellent place for hacks, patches, extensions and new
diff --git a/tex/context/base/cont-new.mkiv b/tex/context/base/cont-new.mkiv
index 8e7d04564..c91c44933 100644
--- a/tex/context/base/cont-new.mkiv
+++ b/tex/context/base/cont-new.mkiv
@@ -11,7 +11,7 @@
 %C therefore copyrighted by \PRAGMA. See mreadme.pdf for
 %C details.
 
-\newcontextversion{2013.01.31 22:47}
+\newcontextversion{2013.02.05 13:35}
 
 %D This file is loaded at runtime, thereby providing an excellent place for
 %D hacks, patches, extensions and new features.
diff --git a/tex/context/base/context-version.pdf b/tex/context/base/context-version.pdf
index 1c49aea89..ee4931f5a 100644
--- a/tex/context/base/context-version.pdf
+++ b/tex/context/base/context-version.pdf
diff --git a/tex/context/base/context-version.png b/tex/context/base/context-version.png
index c90a939dd..ba3ff464b 100644
--- a/tex/context/base/context-version.png
+++ b/tex/context/base/context-version.png
diff --git a/tex/context/base/context.mkii b/tex/context/base/context.mkii
index 8a8aa70dc..62235cc1c 100644
--- a/tex/context/base/context.mkii
+++ b/tex/context/base/context.mkii
@@ -20,7 +20,7 @@
 %D your styles an modules.
 
 \edef\contextformat {\jobname}
-\edef\contextversion{2013.01.31 22:47}
+\edef\contextversion{2013.02.05 13:35}
 
 %D For those who want to use this:
 
diff --git a/tex/context/base/context.mkiv b/tex/context/base/context.mkiv
index 8ad9f130e..64a146e60 100644
--- a/tex/context/base/context.mkiv
+++ b/tex/context/base/context.mkiv
@@ -25,7 +25,7 @@
 %D up and the dependencies are more consistent.
 
 \edef\contextformat {\jobname}
-\edef\contextversion{2013.01.31 22:47}
+\edef\contextversion{2013.02.05 13:35}
 
 %D For those who want to use this:
 
diff --git a/tex/context/base/grph-inc.lua b/tex/context/base/grph-inc.lua
index fd282dac2..4006dfdbe 100644
--- a/tex/context/base/grph-inc.lua
+++ b/tex/context/base/grph-inc.lua
@@ -72,6 +72,14 @@ local context, img = context, img
 local f_hash_part = formatters["%s->%s->%s"]
 local f_hash_full = formatters["%s->%s->%s->%s->%s->%s->%s"]
 
+local v_yes     = variables.yes
+local v_low     = variables.low
+local v_medium  = variables.medium
+local v_high    = variables.high
+local v_global  = variables["global"]
+local v_local   = variables["local"]
+local v_default = variables.default
+
 local maxdimen = 2^30-1
 
 function img.check(figure)
@@ -322,18 +330,18 @@ function figures.setpaths(locationset,pathlist)
         -- this function can be called each graphic so we provide this optimization
         return
     end
-    local iv, t, h = interfaces.variables, figure_paths, settings_to_hash(locationset)
+    local t, h = figure_paths, settings_to_hash(locationset)
     if last_locationset ~= locationset then
         -- change == reset (actually, a 'reset' would indeed reset
-        if h[iv["local"]] then
+        if h[v_local] then
             t = table.fastcopy(figures.localpaths or { })
         else
             t = { }
         end
-        figures.defaultsearch = h[iv["default"]]
+        figures.defaultsearch = h[v_default]
         last_locationset = locationset
     end
-    if h[iv["global"]] then
+    if h[v_global] then
         local list = settings_to_array(pathlist)
         for i=1,#list do
             local s = list[i]
@@ -423,15 +431,14 @@ function figures.initialize(request)
         --
         request.page      = math.max(tonumber(request.page) or 1,1)
         request.size      = img.checksize(request.size)
-        request.object    = request.object == variables.yes
-        request["repeat"] = request["repeat"] == variables.yes
-        request.preview   = request.preview == variables.yes
+        request.object    = request.object == v_yes
+        request["repeat"] = request["repeat"] == v_yes
+        request.preview   = request.preview == v_yes
         request.cache     = request.cache ~= "" and request.cache
         request.prefix    = request.prefix ~= "" and request.prefix
         request.format    = request.format ~= "" and request.format
         table.merge(figuredata.request,request)
     end
- -- inspect(figuredata)
     return figuredata
 end
 
@@ -650,7 +657,7 @@ local function register(askedname,specification)
     return specification
 end
 
-local resolve_too = true -- urls
+local resolve_too = false -- true
 
 local function locate(request) -- name, format, cache
     -- not resolvers.cleanpath(request.name) as it fails on a!b.pdf and b~c.pdf
@@ -661,28 +668,58 @@ local function locate(request) -- name, format, cache
     if foundname then
         return foundname
     end
+    --
+    local askedcache      = request.cache
+    local askedconversion = request.conversion
+    local askedresolution = request.resolution
+    --
+    if request.format == "" or request.format == "unknown" then
+        request.format = nil
+    end
     -- protocol check
     local hashed = url.hashed(askedname)
-    if hashed then
-        if hashed.scheme == "file" then
-            local path = hashed.path
-            if path and path ~= "" then
-                askedname = path
+    if not hashed then
+        -- go on
+    elseif hashed.scheme == "file" then
+        local path = hashed.path
+        if path and path ~= "" then
+            askedname = path
+        end
+    else
+        local foundname = resolvers.findbinfile(askedname)
+        if not lfs.isfile(foundname) then -- foundname can be dummy
+            if trace_figures then
+                report_inclusion("strategy: unresolved url: %s",askedname)
             end
+            -- url not found
+            return register(askedname)
+        end
+        local askedformat = request.format or file.suffix(askedname) or ""
+        local guessedformat = figures.guess(foundname)
+        if askedformat ~= guessedformat then
+            if trace_figures then
+                report_inclusion("strategy: resolved url: %s, unknown format",askedname)
+            end
+            -- url found, but wrong format
+            return register(askedname)
         else
-            local foundname = resolvers.findbinfile(askedname)
-            if foundname then
-                askedname = foundname
+            if trace_figures then
+                report_inclusion("strategy: resolved url: %s -> %s",askedname,foundname)
             end
+            return register(askedname, {
+                askedname  = askedname,
+                fullname   = foundname,
+                format     = askedformat,
+                cache      = askedcache,
+                conversion = askedconversion,
+                resolution = askedresolution,
+            })
         end
     end
     -- we could use the hashed data instead
     local askedpath= file.is_rootbased_path(askedname)
     local askedbase = file.basename(askedname)
-    local askedformat = request.format ~= "" and request.format ~= "unknown" and request.format or file.suffix(askedname) or ""
-    local askedcache = request.cache
-    local askedconversion = request.conversion
-    local askedresolution = request.resolution
+    local askedformat = request.format or file.suffix(askedname) or ""
     if askedformat ~= "" then
         askedformat = lower(askedformat)
         if trace_figures then
@@ -806,7 +843,7 @@ local function locate(request) -- name, format, cache
                                 report_inclusion("warning: skipping path %s",path)
                             end
                         else
-                            local foundname, quitscanning, forcedformat = figures.exists(check,format,true)
+                            local foundname, quitscanning, forcedformat = figures.exists(check,format,resolve_too) -- true)
                             if foundname then
                                 return register(askedname, {
                                     askedname  = askedname,
@@ -1246,9 +1283,9 @@ converters.ps      = epsconverter
 
 local epstopdf = {
     resolutions = {
-        [variables.low]    = "screen",
-        [variables.medium] = "ebook",
-        [variables.high]   = "prepress",
+        [v_low]    = "screen",
+        [v_medium] = "ebook",
+        [v_high]   = "prepress",
     },
     command = os.type == "windows" and "gswin32c" or "gs",
     -- -dProcessDSCComments=false
diff --git a/tex/context/base/l-os.lua b/tex/context/base/l-os.lua
index 08136b24d..1e7c91757 100644
--- a/tex/context/base/l-os.lua
+++ b/tex/context/base/l-os.lua
@@ -193,7 +193,14 @@ os.resolvers = os.resolvers or { } -- will become private
 
 local resolvers = os.resolvers
 
-local osmt = getmetatable(os) or { __index = function(t,k) t[k] = "unset" return "unset" end } -- maybe nil
+local osmt = getmetatable(os) or { __index = function(t,k)
+    local v = function()
+        print(format("function os.%s in namespace is undefined"))
+    end
+    t[k] = v
+    return v
+end } -- maybe nil
+
 local osix = osmt.__index
 
 osmt.__index = function(t,k)
@@ -456,6 +463,9 @@ function os.now()
     return date("!%Y-%m-%d %H:%M:%S") -- 2011-12-04 14:59:12
 end
 
+if not os.sleep and socket then
+    os.sleep = socket.sleep
+end
 
 -- print(os.which("inkscape.exe"))
 -- print(os.which("inkscape"))
diff --git a/tex/context/base/luat-env.lua b/tex/context/base/luat-env.lua
index e483169fd..efaaebf3e 100644
--- a/tex/context/base/luat-env.lua
+++ b/tex/context/base/luat-env.lua
@@ -1,4 +1,4 @@
-if not modules then modules = { } end modules ['luat-env'] = {
+ if not modules then modules = { } end modules ['luat-env'] = {
     version   = 1.001,
     comment   = "companion to luat-lib.mkiv",
     author    = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
@@ -6,94 +6,23 @@ if not modules then modules = { } end modules ['luat-env'] = {
     license   = "see context related readme files"
 }
 
--- A former version provided functionality for non embeded core
--- scripts i.e. runtime library loading. Given the amount of
--- Lua code we use now, this no longer makes sense. Much of this
--- evolved before bytecode arrays were available and so a lot of
+-- A former version provided functionality for non embeded core scripts i.e. runtime
+-- library loading. Given the amount of Lua code we use now, this no longer makes
+-- sense. Much of this evolved before bytecode arrays were available and so a lot of
 -- code has disappeared already.
 
 local trace_locating = false  trackers.register("resolvers.locating", function(v) trace_locating = v end)
 
 local report_lua = logs.reporter("resolvers","lua")
 
-local allocate, mark = utilities.storage.allocate, utilities.storage.mark
-
-local format, sub, match, gsub, find = string.format, string.sub, string.match, string.gsub, string.find
-local unquoted, quoted = string.unquoted, string.quoted
-local concat, insert, remove = table.concat, table.insert, table.remove
-
 local luautilities = utilities.lua
 local luasuffixes  = luautilities.suffixes
 
 environment        = environment or { }
 local environment  = environment
 
--- precautions
-
-os.setlocale(nil,nil) -- useless feature and even dangerous in luatex
-
-function os.setlocale()
-    -- no way you can mess with it
-end
-
--- dirty tricks (we will replace the texlua call by luatex --luaonly)
-
-local validengines = allocate {
-    ["luatex"]        = true,
-    ["luajittex"]     = true,
- -- ["luatex.exe"]    = true,
- -- ["luajittex.exe"] = true,
-}
-
-local basicengines = allocate {
-    ["luatex"]        = "luatex",
-    ["texlua"]        = "luatex",
-    ["texluac"]       = "luatex",
-    ["luajittex"]     = "luajittex",
-    ["texluajit"]     = "luajittex",
- -- ["texlua.exe"]    = "luatex",
- -- ["texluajit.exe"] = "luajittex",
-}
-
-environment.validengines = validengines
-environment.basicengines = basicengines
-
-if arg and validengines[file.removesuffix(arg[0])] and arg[1] == "--luaonly" then
-    arg[-1] = arg[0]
-    arg[ 0] = arg[2]
-    for k=3,#arg do
-        arg[k-2] = arg[k]
-    end
-    remove(arg) -- last
-    remove(arg) -- pre-last
-end
-
--- This is an ugly hack but it permits symlinking a script (say 'context') to 'mtxrun' as in:
---
---   ln -s /opt/minimals/tex/texmf-linux-64/bin/mtxrun context
---
--- The special mapping hack is needed because 'luatools' boils down to 'mtxrun --script base'
--- but it's unlikely that there will be more of this
-
-do
-
-    local originalzero   = file.basename(arg[0])
-    local specialmapping = { luatools == "base" }
-
-    if originalzero ~= "mtxrun" and originalzero ~= "mtxrun.lua" then
-       arg[0] = specialmapping[originalzero] or originalzero
-       insert(arg,0,"--script")
-       insert(arg,0,"mtxrun")
-    end
-
-end
-
 -- environment
 
-environment.arguments   = allocate()
-environment.files       = allocate()
-environment.sortedflags = nil
-
 local mt = {
     __index = function(_,k)
         if k == "version" then
@@ -122,161 +51,6 @@ local mt = {
 
 setmetatable(environment,mt)
 
--- context specific arguments (in order not to confuse the engine)
-
-function environment.initializearguments(arg)
-    local arguments, files = { }, { }
-    environment.arguments, environment.files, environment.sortedflags = arguments, files, nil
-    for index=1,#arg do
-        local argument = arg[index]
-        if index > 0 then
-            local flag, value = match(argument,"^%-+(.-)=(.-)$")
-            if flag then
-                flag = gsub(flag,"^c:","")
-                arguments[flag] = unquoted(value or "")
-            else
-                flag = match(argument,"^%-+(.+)")
-                if flag then
-                    flag = gsub(flag,"^c:","")
-                    arguments[flag] = true
-                else
-                    files[#files+1] = argument
-                end
-            end
-        end
-    end
-    environment.ownname = file.reslash(environment.ownname or arg[0] or 'unknown.lua')
-end
-
-function environment.setargument(name,value)
-    environment.arguments[name] = value
-end
-
--- todo: defaults, better checks e.g on type (boolean versus string)
---
--- tricky: too many hits when we support partials unless we add
--- a registration of arguments so from now on we have 'partial'
-
-function environment.getargument(name,partial)
-    local arguments, sortedflags = environment.arguments, environment.sortedflags
-    if arguments[name] then
-        return arguments[name]
-    elseif partial then
-        if not sortedflags then
-            sortedflags = allocate(table.sortedkeys(arguments))
-            for k=1,#sortedflags do
-                sortedflags[k] = "^" .. sortedflags[k]
-            end
-            environment.sortedflags = sortedflags
-        end
-        -- example of potential clash: ^mode ^modefile
-        for k=1,#sortedflags do
-            local v = sortedflags[k]
-            if find(name,v) then
-                return arguments[sub(v,2,#v)]
-            end
-        end
-    end
-    return nil
-end
-
-environment.argument = environment.getargument
-
-function environment.splitarguments(separator) -- rather special, cut-off before separator
-    local done, before, after = false, { }, { }
-    local originalarguments = environment.originalarguments
-    for k=1,#originalarguments do
-        local v = originalarguments[k]
-        if not done and v == separator then
-            done = true
-        elseif done then
-            after[#after+1] = v
-        else
-            before[#before+1] = v
-        end
-    end
-    return before, after
-end
-
-function environment.reconstructcommandline(arg,noquote)
-    arg = arg or environment.originalarguments
-    if noquote and #arg == 1 then
-        -- we could just do: return unquoted(resolvers.resolve(arg[i]))
-        local a = arg[1]
-        a = resolvers.resolve(a)
-        a = unquoted(a)
-        return a
-    elseif #arg > 0 then
-        local result = { }
-        for i=1,#arg do
-            -- we could just do: result[#result+1] = format("%q",unquoted(resolvers.resolve(arg[i])))
-            local a = arg[i]
-            a = resolvers.resolve(a)
-            a = unquoted(a)
-            a = gsub(a,'"','\\"') -- tricky
-            if find(a," ") then
-                result[#result+1] = quoted(a)
-            else
-                result[#result+1] = a
-            end
-        end
-        return concat(result," ")
-    else
-        return ""
-    end
-end
-
--- -- to be tested:
---
--- function environment.reconstructcommandline(arg,noquote)
---     arg = arg or environment.originalarguments
---     if noquote and #arg == 1 then
---         return unquoted(resolvers.resolve(arg[1]))
---     elseif #arg > 0 then
---         local result = { }
---         for i=1,#arg do
---             result[#result+1] = format("%q",unquoted(resolvers.resolve(arg[i]))) -- always quote
---         end
---         return concat(result," ")
---     else
---         return ""
---     end
--- end
-
-if arg then
-
-    -- new, reconstruct quoted snippets (maybe better just remove the " then and add them later)
-    local newarg, instring = { }, false
-
-    for index=1,#arg do
-        local argument = arg[index]
-        if find(argument,"^\"") then
-            newarg[#newarg+1] = gsub(argument,"^\"","")
-            if not find(argument,"\"$") then
-                instring = true
-            end
-        elseif find(argument,"\"$") then
-            newarg[#newarg] = newarg[#newarg] .. " " .. gsub(argument,"\"$","")
-            instring = false
-        elseif instring then
-            newarg[#newarg] = newarg[#newarg] .. " " .. argument
-        else
-            newarg[#newarg+1] = argument
-        end
-    end
-    for i=1,-5,-1 do
-        newarg[i] = arg[i]
-    end
-
-    environment.initializearguments(newarg)
-
-    environment.originalarguments = mark(newarg)
-    environment.rawarguments      = mark(arg)
-
-    arg = { } -- prevent duplicate handling
-
-end
-
 -- weird place ... depends on a not yet loaded module
 
 function environment.texfile(filename)
diff --git a/tex/context/base/luat-lib.mkiv b/tex/context/base/luat-lib.mkiv
index 521ecbf5e..4ece2a29a 100644
--- a/tex/context/base/luat-lib.mkiv
+++ b/tex/context/base/luat-lib.mkiv
@@ -65,6 +65,7 @@
 \registerctxluafile{luat-lua}{1.001}
 \registerctxluafile{luat-sto}{1.001}
 \registerctxluafile{luat-ini}{1.001}
+\registerctxluafile{util-env}{1.001}
 \registerctxluafile{luat-env}{1.001}
 \registerctxluafile{luat-exe}{1.001}
 \registerctxluafile{luat-iop}{1.001}
diff --git a/tex/context/base/m-graph.mkiv b/tex/context/base/m-graph.mkiv
index 8acbe1f8d..c80e4ad91 100644
--- a/tex/context/base/m-graph.mkiv
+++ b/tex/context/base/m-graph.mkiv
@@ -15,6 +15,8 @@
 % are limited by what mp can do. We support @ as replacement for
 % the percent symbol. We also add a specifier when no one is given.
 
+\unprotect
+
 \startluacode
     local format, gsub, find, match = string.format, string.gsub, string.find, string.match
 
@@ -54,10 +56,24 @@
 
 % We could also delegate parsing using lower level plugins.
 
-\startMPextensions
-    if unknown Fe_plus : picture Fe_plus ; Fe_plus := textext("+") ; fi ;
+\defineMPinstance
+  [graph]
+  [\s!format=metafun,
+   \s!extensions=\v!yes,
+   \s!initializations=\v!yes,
+   \c!method=\s!double]
+
+\startMPdefinitions{graph}
     if unknown context_grap: input "mp-grap.mpiv" ; fi ;
-\stopMPextensions
+\stopMPdefinitions
+
+% gone:
+%
+% \startMPextensions
+%     if unknown Fe_plus : picture Fe_plus ; Fe_plus := textext("+") ; fi ;
+% \stopMPextensions
+
+\protect
 
 \continueifinputfile{m-graph.mkiv}
 
diff --git a/tex/context/base/status-files.pdf b/tex/context/base/status-files.pdf
index 1a957aa56..26f01897e 100644
--- a/tex/context/base/status-files.pdf
+++ b/tex/context/base/status-files.pdf
diff --git a/tex/context/base/status-lua.pdf b/tex/context/base/status-lua.pdf
index 0d0ded3d8..d4b7fb4c5 100644
--- a/tex/context/base/status-lua.pdf
+++ b/tex/context/base/status-lua.pdf
diff --git a/tex/context/base/strc-flt.mkvi b/tex/context/base/strc-flt.mkvi
index e268afee7..6199a3e6b 100644
--- a/tex/context/base/strc-flt.mkvi
+++ b/tex/context/base/strc-flt.mkvi
@@ -756,8 +756,8 @@
 
 \def\floatcaptionattribute
   {\iflocation
-     \ifnofloatnumber
-     \else
+    %\ifnofloatnumber
+    %\else
        \ifnofloatcaption
        \else
          \ifinsidesplitfloat
@@ -769,7 +769,7 @@
            attr \destinationattribute \currentfloatattribute
          \fi
        \fi
-     \fi
+    %\fi
    \fi}
 
 \newconditional\usesamefloatnumber
@@ -1029,7 +1029,7 @@
 
 \unexpanded\def\placefloats
   {\page_otr_command_flush_floats}
-
+
 \newdimen\d_strc_floats_margin
 \newdimen\d_strc_floats_top
 \newdimen\d_strc_floats_bottom
diff --git a/tex/context/base/trac-lmx.lua b/tex/context/base/trac-lmx.lua
index 2754dd16d..d20241735 100644
--- a/tex/context/base/trac-lmx.lua
+++ b/tex/context/base/trac-lmx.lua
@@ -142,6 +142,10 @@ local function loadedfile(name)
     return data
 end
 
+local function loadedsubfile(name)
+    return io.loaddata(resolvers and resolvers.findfile and resolvers.findfile(name) or name)
+end
+
 lmx.loadedfile = loadedfile
 
 -- A few helpers (the next one could end up in l-lpeg):
@@ -208,14 +212,15 @@ local function do_type_variable(str)
 end
 
 local function do_include(filename)
-    local data = loadedfile(filename)
+    local data = loadedsubfile(filename)
     if (not data or data == "") and type(usedpaths) == "table" then
         for i=1,#usedpaths do
-            data = loadedfile(joinpath(usedpaths[i],filename))
+            data = loadedsubfile(joinpath(usedpaths[i],filename))
         end
     end
     if not data or data == "" then
         data = format("<!-- unknown lmx include file: %s -->",filename)
+        report_lmx("empty include file: %s",filename)
     end
     return data
 end
diff --git a/tex/context/base/util-mrg.lua b/tex/context/base/util-mrg.lua
index cdac10ac1..276531d79 100644
--- a/tex/context/base/util-mrg.lua
+++ b/tex/context/base/util-mrg.lua
@@ -120,6 +120,10 @@ local compact = Cs ( (
 local strip       = Cs((emptyline^2/"\n" + 1)^0)
 local stripreturn = Cs((1-P("return") * space^1 * P(1-space-eol)^1 * (space+eol)^0 * P(-1))^1)
 
+function merger.compact(data)
+    return lpegmatch(strip,lpegmatch(compact,data))
+end
+
 local function self_compact(data)
     local delta = 0
     if merger.strip_comment then
diff --git a/tex/context/base/util-sql-tickets.lua b/tex/context/base/util-sql-tickets.lua
index 2dc334ce6..63bbf4d44 100644
--- a/tex/context/base/util-sql-tickets.lua
+++ b/tex/context/base/util-sql-tickets.lua
@@ -87,9 +87,7 @@ local template =[[
 ]]
 
 function tickets.createdb(presets,datatable)
-
     local db = checkeddb(presets,datatable)
-
     local data, keys = db.execute {
         template  = template,
         variables = {
diff --git a/tex/context/base/util-sql.lua b/tex/context/base/util-sql.lua
index 5310ea699..5d57c22f5 100644
--- a/tex/context/base/util-sql.lua
+++ b/tex/context/base/util-sql.lua
@@ -111,7 +111,9 @@ local defaults     = { __index =
 }
 
 table.setmetatableindex(sql.methods,function(t,k)
+    report_state("start loading method %q",k)
     require("util-sql-imp-"..k)
+    report_state("loading method %q done",k)
     return rawget(t,k)
 end)
 
@@ -328,6 +330,8 @@ function sql.usedatabase(presets,datatable)
             deserialize = deserialize,
             unpackdata  = unpackdata,
         }
+    else
+        report_state("missing name in usedatabase specification")
     end
 end
 
diff --git a/tex/generic/context/luatex/luatex-basics-nod.lua b/tex/generic/context/luatex/luatex-basics-nod.lua
index 151d98a8f..ec515001e 100644
--- a/tex/generic/context/luatex/luatex-basics-nod.lua
+++ b/tex/generic/context/luatex/luatex-basics-nod.lua
@@ -63,6 +63,9 @@ nodes.glyphcodes   = glyphcodes
 local free_node    = node.free
 local remove_node  = node.remove
 local new_node     = node.new
+local traverse_id  = node.traverse_id
+
+local math_code    = nodecodes.math
 
 nodes.handlers.protectglyphs   = node.protect_glyphs
 nodes.handlers.unprotectglyphs = node.unprotect_glyphs
@@ -93,3 +96,9 @@ function nodes.pool.kern(k)
     n.kern = k
     return n
 end
+
+function nodes.endofmath(n)
+    for n in traverse_id(math_code,n.next) do
+        return n
+    end
+end
diff --git a/tex/generic/context/luatex/luatex-fonts-merged.lua b/tex/generic/context/luatex/luatex-fonts-merged.lua
index 6121c7206..1b0334cc9 100644
--- a/tex/generic/context/luatex/luatex-fonts-merged.lua
+++ b/tex/generic/context/luatex/luatex-fonts-merged.lua
@@ -1,13581 +1,10360 @@
 -- merged file : luatex-fonts-merged.lua
 -- parent file : luatex-fonts.lua
--- merge date  : 01/31/13 22:47:25
+-- merge date  : 02/05/13 13:35:14
 
 do -- begin closure to overcome local limits and interference
 
-if not modules then modules = { } end modules ['l-lpeg'] = {
-    version   = 1.001,
-    comment   = "companion to luat-lib.mkiv",
-    author    = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
-    copyright = "PRAGMA ADE / ConTeXt Development Team",
-    license   = "see context related readme files"
+if not modules then modules={} end modules ['l-lpeg']={
+  version=1.001,
+  comment="companion to luat-lib.mkiv",
+  author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+  copyright="PRAGMA ADE / ConTeXt Development Team",
+  license="see context related readme files"
 }
-
--- a new lpeg fails on a #(1-P(":")) test and really needs a + P(-1)
-
--- move utf    -> l-unicode
--- move string -> l-string or keep it here
-
-local lpeg = require("lpeg")
-
--- tracing (only used when we encounter a problem in integration of lpeg in luatex)
-
--- some code will move to unicode and string
-
-local report = texio and texio.write_nl or print
-
--- local lpmatch = lpeg.match
--- local lpprint = lpeg.print
--- local lpp     = lpeg.P
--- local lpr     = lpeg.R
--- local lps     = lpeg.S
--- local lpc     = lpeg.C
--- local lpb     = lpeg.B
--- local lpv     = lpeg.V
--- local lpcf    = lpeg.Cf
--- local lpcb    = lpeg.Cb
--- local lpcg    = lpeg.Cg
--- local lpct    = lpeg.Ct
--- local lpcs    = lpeg.Cs
--- local lpcc    = lpeg.Cc
--- local lpcmt   = lpeg.Cmt
--- local lpcarg  = lpeg.Carg
-
--- function lpeg.match(l,...) report("LPEG MATCH") lpprint(l) return lpmatch(l,...) end
-
--- function lpeg.P    (l) local p = lpp   (l) report("LPEG P =")    lpprint(l) return p end
--- function lpeg.R    (l) local p = lpr   (l) report("LPEG R =")    lpprint(l) return p end
--- function lpeg.S    (l) local p = lps   (l) report("LPEG S =")    lpprint(l) return p end
--- function lpeg.C    (l) local p = lpc   (l) report("LPEG C =")    lpprint(l) return p end
--- function lpeg.B    (l) local p = lpb   (l) report("LPEG B =")    lpprint(l) return p end
--- function lpeg.V    (l) local p = lpv   (l) report("LPEG V =")    lpprint(l) return p end
--- function lpeg.Cf   (l) local p = lpcf  (l) report("LPEG Cf =")   lpprint(l) return p end
--- function lpeg.Cb   (l) local p = lpcb  (l) report("LPEG Cb =")   lpprint(l) return p end
--- function lpeg.Cg   (l) local p = lpcg  (l) report("LPEG Cg =")   lpprint(l) return p end
--- function lpeg.Ct   (l) local p = lpct  (l) report("LPEG Ct =")   lpprint(l) return p end
--- function lpeg.Cs   (l) local p = lpcs  (l) report("LPEG Cs =")   lpprint(l) return p end
--- function lpeg.Cc   (l) local p = lpcc  (l) report("LPEG Cc =")   lpprint(l) return p end
--- function lpeg.Cmt  (l) local p = lpcmt (l) report("LPEG Cmt =")  lpprint(l) return p end
--- function lpeg.Carg (l) local p = lpcarg(l) report("LPEG Carg =") lpprint(l) return p end
-
-local type, next, tostring = type, next, tostring
-local byte, char, gmatch, format = string.byte, string.char, string.gmatch, string.format
------ mod, div = math.mod, math.div
-local floor = math.floor
-
-local P, R, S, V, Ct, C, Cs, Cc, Cp, Cmt = lpeg.P, lpeg.R, lpeg.S, lpeg.V, lpeg.Ct, lpeg.C, lpeg.Cs, lpeg.Cc, lpeg.Cp, lpeg.Cmt
-local lpegtype, lpegmatch, lpegprint = lpeg.type, lpeg.match, lpeg.print
-
--- let's start with an inspector:
-
+local lpeg=require("lpeg")
+local report=texio and texio.write_nl or print
+local type,next,tostring=type,next,tostring
+local byte,char,gmatch,format=string.byte,string.char,string.gmatch,string.format
+local floor=math.floor
+local P,R,S,V,Ct,C,Cs,Cc,Cp,Cmt=lpeg.P,lpeg.R,lpeg.S,lpeg.V,lpeg.Ct,lpeg.C,lpeg.Cs,lpeg.Cc,lpeg.Cp,lpeg.Cmt
+local lpegtype,lpegmatch,lpegprint=lpeg.type,lpeg.match,lpeg.print
 setinspector(function(v) if lpegtype(v) then lpegprint(v) return true end end)
-
--- Beware, we predefine a bunch of patterns here and one reason for doing so
--- is that we get consistent behaviour in some of the visualizers.
-
-lpeg.patterns  = lpeg.patterns or { } -- so that we can share
-local patterns = lpeg.patterns
-
-
-local anything         = P(1)
-local endofstring      = P(-1)
-local alwaysmatched    = P(true)
-
-patterns.anything      = anything
-patterns.endofstring   = endofstring
-patterns.beginofstring = alwaysmatched
-patterns.alwaysmatched = alwaysmatched
-
-local digit, sign      = R('09'), S('+-')
-local cr, lf, crlf     = P("\r"), P("\n"), P("\r\n")
-local newline          = crlf + S("\r\n") -- cr + lf
-local escaped          = P("\\") * anything
-local squote           = P("'")
-local dquote           = P('"')
-local space            = P(" ")
-
-local utfbom_32_be     = P('\000\000\254\255')
-local utfbom_32_le     = P('\255\254\000\000')
-local utfbom_16_be     = P('\255\254')
-local utfbom_16_le     = P('\254\255')
-local utfbom_8         = P('\239\187\191')
-local utfbom           = utfbom_32_be + utfbom_32_le
-                       + utfbom_16_be + utfbom_16_le
-                       + utfbom_8
-local utftype          = utfbom_32_be * Cc("utf-32-be") + utfbom_32_le  * Cc("utf-32-le")
-                       + utfbom_16_be * Cc("utf-16-be") + utfbom_16_le  * Cc("utf-16-le")
-                       + utfbom_8     * Cc("utf-8")     + alwaysmatched * Cc("utf-8") -- assume utf8
-local utfoffset        = utfbom_32_be * Cc(4) + utfbom_32_le * Cc(4)
-                       + utfbom_16_be * Cc(2) + utfbom_16_le * Cc(2)
-                       + utfbom_8     * Cc(3) + Cc(0)
-
-local utf8next         = R("\128\191")
-
-patterns.utf8one       = R("\000\127")
-patterns.utf8two       = R("\194\223") * utf8next
-patterns.utf8three     = R("\224\239") * utf8next * utf8next
-patterns.utf8four      = R("\240\244") * utf8next * utf8next * utf8next
-patterns.utfbom        = utfbom
-patterns.utftype       = utftype
-patterns.utfoffset     = utfoffset
-
-local utf8char         = patterns.utf8one + patterns.utf8two + patterns.utf8three + patterns.utf8four
-local validutf8char    = utf8char^0 * endofstring * Cc(true) + Cc(false)
-
-patterns.utf8          = utf8char
-patterns.utf8char      = utf8char
-patterns.validutf8     = validutf8char
-patterns.validutf8char = validutf8char
-
-local eol              = S("\n\r")
-local spacer           = S(" \t\f\v")  -- + char(0xc2, 0xa0) if we want utf (cf mail roberto)
-local whitespace       = eol + spacer
-local nonspacer        = 1 - spacer
-local nonwhitespace    = 1 - whitespace
-
-patterns.eol           = eol
-patterns.spacer        = spacer
-patterns.whitespace    = whitespace
-patterns.nonspacer     = nonspacer
-patterns.nonwhitespace = nonwhitespace
-
-local stripper         = spacer^0 * C((spacer^0     * nonspacer^1)^0) -- from example by roberto
-
------ collapser        = Cs(spacer^0/"" * ((spacer^1 * P(-1) / "") + (spacer^1/" ") + P(1))^0)
-local collapser        = Cs(spacer^0/"" * nonspacer^0 * ((spacer^0/" " * nonspacer^1)^0))
-
-patterns.stripper      = stripper
-patterns.collapser     = collapser
-
-patterns.digit         = digit
-patterns.sign          = sign
-patterns.cardinal      = sign^0 * digit^1
-patterns.integer       = sign^0 * digit^1
-patterns.unsigned      = digit^0 * P('.') * digit^1
-patterns.float         = sign^0 * patterns.unsigned
-patterns.cunsigned     = digit^0 * P(',') * digit^1
-patterns.cfloat        = sign^0 * patterns.cunsigned
-patterns.number        = patterns.float + patterns.integer
-patterns.cnumber       = patterns.cfloat + patterns.integer
-patterns.oct           = P("0") * R("07")^1
-patterns.octal         = patterns.oct
-patterns.HEX           = P("0x") * R("09","AF")^1
-patterns.hex           = P("0x") * R("09","af")^1
-patterns.hexadecimal   = P("0x") * R("09","AF","af")^1
-patterns.lowercase     = R("az")
-patterns.uppercase     = R("AZ")
-patterns.letter        = patterns.lowercase + patterns.uppercase
-patterns.space         = space
-patterns.tab           = P("\t")
-patterns.spaceortab    = patterns.space + patterns.tab
-patterns.newline       = newline
-patterns.emptyline     = newline^1
-patterns.equal         = P("=")
-patterns.comma         = P(",")
-patterns.commaspacer   = P(",") * spacer^0
-patterns.period        = P(".")
-patterns.colon         = P(":")
-patterns.semicolon     = P(";")
-patterns.underscore    = P("_")
-patterns.escaped       = escaped
-patterns.squote        = squote
-patterns.dquote        = dquote
-patterns.nosquote      = (escaped + (1-squote))^0
-patterns.nodquote      = (escaped + (1-dquote))^0
-patterns.unsingle      = (squote/"") * patterns.nosquote * (squote/"") -- will change to C in the middle
-patterns.undouble      = (dquote/"") * patterns.nodquote * (dquote/"") -- will change to C in the middle
-patterns.unquoted      = patterns.undouble + patterns.unsingle -- more often undouble
-patterns.unspacer      = ((patterns.spacer^1)/"")^0
-
-patterns.singlequoted  = squote * patterns.nosquote * squote
-patterns.doublequoted  = dquote * patterns.nodquote * dquote
-patterns.quoted        = patterns.doublequoted + patterns.singlequoted
-
-patterns.propername    = R("AZ","az","__") * R("09","AZ","az", "__")^0 * P(-1)
-
-patterns.somecontent   = (anything - newline - space)^1 -- (utf8char - newline - space)^1
-patterns.beginline     = #(1-newline)
-
-patterns.longtostring  = Cs(whitespace^0/"" * nonwhitespace^0 * ((whitespace^0/" " * (patterns.quoted + nonwhitespace)^1)^0))
-
-local function anywhere(pattern) --slightly adapted from website
-    return P { P(pattern) + 1 * V(1) }
-end
-
-lpeg.anywhere = anywhere
-
+lpeg.patterns=lpeg.patterns or {} 
+local patterns=lpeg.patterns
+local anything=P(1)
+local endofstring=P(-1)
+local alwaysmatched=P(true)
+patterns.anything=anything
+patterns.endofstring=endofstring
+patterns.beginofstring=alwaysmatched
+patterns.alwaysmatched=alwaysmatched
+local digit,sign=R('09'),S('+-')
+local cr,lf,crlf=P("\r"),P("\n"),P("\r\n")
+local newline=crlf+S("\r\n") 
+local escaped=P("\\")*anything
+local squote=P("'")
+local dquote=P('"')
+local space=P(" ")
+local utfbom_32_be=P('\000\000\254\255')
+local utfbom_32_le=P('\255\254\000\000')
+local utfbom_16_be=P('\255\254')
+local utfbom_16_le=P('\254\255')
+local utfbom_8=P('\239\187\191')
+local utfbom=utfbom_32_be+utfbom_32_le+utfbom_16_be+utfbom_16_le+utfbom_8
+local utftype=utfbom_32_be*Cc("utf-32-be")+utfbom_32_le*Cc("utf-32-le")+utfbom_16_be*Cc("utf-16-be")+utfbom_16_le*Cc("utf-16-le")+utfbom_8*Cc("utf-8")+alwaysmatched*Cc("utf-8") 
+local utfoffset=utfbom_32_be*Cc(4)+utfbom_32_le*Cc(4)+utfbom_16_be*Cc(2)+utfbom_16_le*Cc(2)+utfbom_8*Cc(3)+Cc(0)
+local utf8next=R("\128\191")
+patterns.utf8one=R("\000\127")
+patterns.utf8two=R("\194\223")*utf8next
+patterns.utf8three=R("\224\239")*utf8next*utf8next
+patterns.utf8four=R("\240\244")*utf8next*utf8next*utf8next
+patterns.utfbom=utfbom
+patterns.utftype=utftype
+patterns.utfoffset=utfoffset
+local utf8char=patterns.utf8one+patterns.utf8two+patterns.utf8three+patterns.utf8four
+local validutf8char=utf8char^0*endofstring*Cc(true)+Cc(false)
+patterns.utf8=utf8char
+patterns.utf8char=utf8char
+patterns.validutf8=validutf8char
+patterns.validutf8char=validutf8char
+local eol=S("\n\r")
+local spacer=S(" \t\f\v") 
+local whitespace=eol+spacer
+local nonspacer=1-spacer
+local nonwhitespace=1-whitespace
+patterns.eol=eol
+patterns.spacer=spacer
+patterns.whitespace=whitespace
+patterns.nonspacer=nonspacer
+patterns.nonwhitespace=nonwhitespace
+local stripper=spacer^0*C((spacer^0*nonspacer^1)^0)
+local collapser=Cs(spacer^0/""*nonspacer^0*((spacer^0/" "*nonspacer^1)^0))
+patterns.stripper=stripper
+patterns.collapser=collapser
+patterns.digit=digit
+patterns.sign=sign
+patterns.cardinal=sign^0*digit^1
+patterns.integer=sign^0*digit^1
+patterns.unsigned=digit^0*P('.')*digit^1
+patterns.float=sign^0*patterns.unsigned
+patterns.cunsigned=digit^0*P(',')*digit^1
+patterns.cfloat=sign^0*patterns.cunsigned
+patterns.number=patterns.float+patterns.integer
+patterns.cnumber=patterns.cfloat+patterns.integer
+patterns.oct=P("0")*R("07")^1
+patterns.octal=patterns.oct
+patterns.HEX=P("0x")*R("09","AF")^1
+patterns.hex=P("0x")*R("09","af")^1
+patterns.hexadecimal=P("0x")*R("09","AF","af")^1
+patterns.lowercase=R("az")
+patterns.uppercase=R("AZ")
+patterns.letter=patterns.lowercase+patterns.uppercase
+patterns.space=space
+patterns.tab=P("\t")
+patterns.spaceortab=patterns.space+patterns.tab
+patterns.newline=newline
+patterns.emptyline=newline^1
+patterns.equal=P("=")
+patterns.comma=P(",")
+patterns.commaspacer=P(",")*spacer^0
+patterns.period=P(".")
+patterns.colon=P(":")
+patterns.semicolon=P(";")
+patterns.underscore=P("_")
+patterns.escaped=escaped
+patterns.squote=squote
+patterns.dquote=dquote
+patterns.nosquote=(escaped+(1-squote))^0
+patterns.nodquote=(escaped+(1-dquote))^0
+patterns.unsingle=(squote/"")*patterns.nosquote*(squote/"") 
+patterns.undouble=(dquote/"")*patterns.nodquote*(dquote/"") 
+patterns.unquoted=patterns.undouble+patterns.unsingle 
+patterns.unspacer=((patterns.spacer^1)/"")^0
+patterns.singlequoted=squote*patterns.nosquote*squote
+patterns.doublequoted=dquote*patterns.nodquote*dquote
+patterns.quoted=patterns.doublequoted+patterns.singlequoted
+patterns.propername=R("AZ","az","__")*R("09","AZ","az","__")^0*P(-1)
+patterns.somecontent=(anything-newline-space)^1 
+patterns.beginline=#(1-newline)
+patterns.longtostring=Cs(whitespace^0/""*nonwhitespace^0*((whitespace^0/" "*(patterns.quoted+nonwhitespace)^1)^0))
+local function anywhere(pattern) 
+  return P { P(pattern)+1*V(1) }
+end
+lpeg.anywhere=anywhere
 function lpeg.instringchecker(p)
-    p = anywhere(p)
-    return function(str)
-        return lpegmatch(p,str) and true or false
-    end
+  p=anywhere(p)
+  return function(str)
+    return lpegmatch(p,str) and true or false
+  end
 end
-
-function lpeg.splitter(pattern, action)
-    return (((1-P(pattern))^1)/action+1)^0
+function lpeg.splitter(pattern,action)
+  return (((1-P(pattern))^1)/action+1)^0
 end
-
-function lpeg.tsplitter(pattern, action)
-    return Ct((((1-P(pattern))^1)/action+1)^0)
+function lpeg.tsplitter(pattern,action)
+  return Ct((((1-P(pattern))^1)/action+1)^0)
 end
-
--- probleem: separator can be lpeg and that does not hash too well, but
--- it's quite okay as the key is then not garbage collected
-
-local splitters_s, splitters_m, splitters_t = { }, { }, { }
-
+local splitters_s,splitters_m,splitters_t={},{},{}
 local function splitat(separator,single)
-    local splitter = (single and splitters_s[separator]) or splitters_m[separator]
-    if not splitter then
-        separator = P(separator)
-        local other = C((1 - separator)^0)
-        if single then
-            local any = anything
-            splitter = other * (separator * C(any^0) + "") -- ?
-            splitters_s[separator] = splitter
-        else
-            splitter = other * (separator * other)^0
-            splitters_m[separator] = splitter
-        end
+  local splitter=(single and splitters_s[separator]) or splitters_m[separator]
+  if not splitter then
+    separator=P(separator)
+    local other=C((1-separator)^0)
+    if single then
+      local any=anything
+      splitter=other*(separator*C(any^0)+"") 
+      splitters_s[separator]=splitter
+    else
+      splitter=other*(separator*other)^0
+      splitters_m[separator]=splitter
     end
-    return splitter
+  end
+  return splitter
 end
-
 local function tsplitat(separator)
-    local splitter = splitters_t[separator]
-    if not splitter then
-        splitter = Ct(splitat(separator))
-        splitters_t[separator] = splitter
-    end
-    return splitter
-end
-
-lpeg.splitat  = splitat
-lpeg.tsplitat = tsplitat
-
+  local splitter=splitters_t[separator]
+  if not splitter then
+    splitter=Ct(splitat(separator))
+    splitters_t[separator]=splitter
+  end
+  return splitter
+end
+lpeg.splitat=splitat
+lpeg.tsplitat=tsplitat
 function string.splitup(str,separator)
-    if not separator then
-        separator = ","
-    end
-    return lpegmatch(splitters_m[separator] or splitat(separator),str)
+  if not separator then
+    separator=","
+  end
+  return lpegmatch(splitters_m[separator] or splitat(separator),str)
 end
-
--- local p = splitat("->",false)  print(lpegmatch(p,"oeps->what->more"))  -- oeps what more
--- local p = splitat("->",true)   print(lpegmatch(p,"oeps->what->more"))  -- oeps what->more
--- local p = splitat("->",false)  print(lpegmatch(p,"oeps"))              -- oeps
--- local p = splitat("->",true)   print(lpegmatch(p,"oeps"))              -- oeps
-
-local cache = { }
-
+local cache={}
 function lpeg.split(separator,str)
-    local c = cache[separator]
-    if not c then
-        c = tsplitat(separator)
-        cache[separator] = c
-    end
-    return lpegmatch(c,str)
+  local c=cache[separator]
+  if not c then
+    c=tsplitat(separator)
+    cache[separator]=c
+  end
+  return lpegmatch(c,str)
 end
-
 function string.split(str,separator)
-    if separator then
-        local c = cache[separator]
-        if not c then
-            c = tsplitat(separator)
-            cache[separator] = c
-        end
-        return lpegmatch(c,str)
-    else
-        return { str }
+  if separator then
+    local c=cache[separator]
+    if not c then
+      c=tsplitat(separator)
+      cache[separator]=c
     end
-end
-
-local spacing  = patterns.spacer^0 * newline -- sort of strip
-local empty    = spacing * Cc("")
-local nonempty = Cs((1-spacing)^1) * spacing^-1
-local content  = (empty + nonempty)^1
-
-patterns.textline = content
-
-local linesplitter = tsplitat(newline)
-
-patterns.linesplitter = linesplitter
-
+    return lpegmatch(c,str)
+  else
+    return { str }
+  end
+end
+local spacing=patterns.spacer^0*newline 
+local empty=spacing*Cc("")
+local nonempty=Cs((1-spacing)^1)*spacing^-1
+local content=(empty+nonempty)^1
+patterns.textline=content
+local linesplitter=tsplitat(newline)
+patterns.linesplitter=linesplitter
 function string.splitlines(str)
-    return lpegmatch(linesplitter,str)
+  return lpegmatch(linesplitter,str)
 end
-
--- lpeg.splitters = cache -- no longer public
-
-local cache = { }
-
+local cache={}
 function lpeg.checkedsplit(separator,str)
-    local c = cache[separator]
-    if not c then
-        separator = P(separator)
-        local other = C((1 - separator)^1)
-        c = Ct(separator^0 * other * (separator^1 * other)^0)
-        cache[separator] = c
-    end
-    return lpegmatch(c,str)
+  local c=cache[separator]
+  if not c then
+    separator=P(separator)
+    local other=C((1-separator)^1)
+    c=Ct(separator^0*other*(separator^1*other)^0)
+    cache[separator]=c
+  end
+  return lpegmatch(c,str)
 end
-
 function string.checkedsplit(str,separator)
-    local c = cache[separator]
-    if not c then
-        separator = P(separator)
-        local other = C((1 - separator)^1)
-        c = Ct(separator^0 * other * (separator^1 * other)^0)
-        cache[separator] = c
-    end
-    return lpegmatch(c,str)
-end
-
--- from roberto's site:
-
-local function f2(s) local c1, c2         = byte(s,1,2) return   c1 * 64 + c2                       -    12416 end
-local function f3(s) local c1, c2, c3     = byte(s,1,3) return  (c1 * 64 + c2) * 64 + c3            -   925824 end
-local function f4(s) local c1, c2, c3, c4 = byte(s,1,4) return ((c1 * 64 + c2) * 64 + c3) * 64 + c4 - 63447168 end
-
-local utf8byte = patterns.utf8one/byte + patterns.utf8two/f2 + patterns.utf8three/f3 + patterns.utf8four/f4
-
-patterns.utf8byte = utf8byte
-
---~ local str = " a b c d "
-
---~ local s = lpeg.stripper(lpeg.R("az"))   print("["..lpegmatch(s,str).."]")
---~ local s = lpeg.keeper(lpeg.R("az"))     print("["..lpegmatch(s,str).."]")
---~ local s = lpeg.stripper("ab")           print("["..lpegmatch(s,str).."]")
---~ local s = lpeg.keeper("ab")             print("["..lpegmatch(s,str).."]")
-
-local cache = { }
-
+  local c=cache[separator]
+  if not c then
+    separator=P(separator)
+    local other=C((1-separator)^1)
+    c=Ct(separator^0*other*(separator^1*other)^0)
+    cache[separator]=c
+  end
+  return lpegmatch(c,str)
+end
+local function f2(s) local c1,c2=byte(s,1,2) return  c1*64+c2-12416 end
+local function f3(s) local c1,c2,c3=byte(s,1,3) return (c1*64+c2)*64+c3-925824 end
+local function f4(s) local c1,c2,c3,c4=byte(s,1,4) return ((c1*64+c2)*64+c3)*64+c4-63447168 end
+local utf8byte=patterns.utf8one/byte+patterns.utf8two/f2+patterns.utf8three/f3+patterns.utf8four/f4
+patterns.utf8byte=utf8byte
+local cache={}
 function lpeg.stripper(str)
-    if type(str) == "string" then
-        local s = cache[str]
-        if not s then
-            s = Cs(((S(str)^1)/"" + 1)^0)
-            cache[str] = s
-        end
-        return s
-    else
-        return Cs(((str^1)/"" + 1)^0)
+  if type(str)=="string" then
+    local s=cache[str]
+    if not s then
+      s=Cs(((S(str)^1)/""+1)^0)
+      cache[str]=s
     end
+    return s
+  else
+    return Cs(((str^1)/""+1)^0)
+  end
 end
-
-local cache = { }
-
+local cache={}
 function lpeg.keeper(str)
-    if type(str) == "string" then
-        local s = cache[str]
-        if not s then
-            s = Cs((((1-S(str))^1)/"" + 1)^0)
-            cache[str] = s
-        end
-        return s
-    else
-        return Cs((((1-str)^1)/"" + 1)^0)
-    end
-end
-
-function lpeg.frontstripper(str) -- or pattern (yet undocumented)
-    return (P(str) + P(true)) * Cs(anything^0)
-end
-
-function lpeg.endstripper(str) -- or pattern (yet undocumented)
-    return Cs((1 - P(str) * endofstring)^0)
-end
-
--- Just for fun I looked at the used bytecode and
--- p = (p and p + pp) or pp gets one more (testset).
-
--- todo: cache when string
-
-function lpeg.replacer(one,two,makefunction,isutf) -- in principle we should sort the keys
-    local pattern
-    local u = isutf and utf8char or 1
-    if type(one) == "table" then
-        local no = #one
-        local p = P(false)
-        if no == 0 then
-            for k, v in next, one do
-                p = p + P(k) / v
-            end
-            pattern = Cs((p + u)^0)
-        elseif no == 1 then
-            local o = one[1]
-            one, two = P(o[1]), o[2]
-         -- pattern = Cs(((1-one)^1 + one/two)^0)
-            pattern = Cs((one/two + u)^0)
-        else
-            for i=1,no do
-                local o = one[i]
-                p = p + P(o[1]) / o[2]
-            end
-            pattern = Cs((p + u)^0)
-        end
-    else
-        pattern = Cs((P(one)/(two or "") + u)^0)
+  if type(str)=="string" then
+    local s=cache[str]
+    if not s then
+      s=Cs((((1-S(str))^1)/""+1)^0)
+      cache[str]=s
     end
-    if makefunction then
-        return function(str)
-            return lpegmatch(pattern,str)
-        end
+    return s
+  else
+    return Cs((((1-str)^1)/""+1)^0)
+  end
+end
+function lpeg.frontstripper(str) 
+  return (P(str)+P(true))*Cs(anything^0)
+end
+function lpeg.endstripper(str) 
+  return Cs((1-P(str)*endofstring)^0)
+end
+function lpeg.replacer(one,two,makefunction,isutf) 
+  local pattern
+  local u=isutf and utf8char or 1
+  if type(one)=="table" then
+    local no=#one
+    local p=P(false)
+    if no==0 then
+      for k,v in next,one do
+        p=p+P(k)/v
+      end
+      pattern=Cs((p+u)^0)
+    elseif no==1 then
+      local o=one[1]
+      one,two=P(o[1]),o[2]
+      pattern=Cs((one/two+u)^0)
     else
-        return pattern
+      for i=1,no do
+        local o=one[i]
+        p=p+P(o[1])/o[2]
+      end
+      pattern=Cs((p+u)^0)
+    end
+  else
+    pattern=Cs((P(one)/(two or "")+u)^0)
+  end
+  if makefunction then
+    return function(str)
+      return lpegmatch(pattern,str)
     end
+  else
+    return pattern
+  end
 end
-
 function lpeg.finder(lst,makefunction)
-    local pattern
-    if type(lst) == "table" then
-        pattern = P(false)
-        if #lst == 0 then
-            for k, v in next, lst do
-                pattern = pattern + P(k) -- ignore key, so we can use a replacer table
-            end
-        else
-            for i=1,#lst do
-                pattern = pattern + P(lst[i])
-            end
-        end
+  local pattern
+  if type(lst)=="table" then
+    pattern=P(false)
+    if #lst==0 then
+      for k,v in next,lst do
+        pattern=pattern+P(k) 
+      end
     else
-        pattern = P(lst)
-    end
-    pattern = (1-pattern)^0 * pattern
-    if makefunction then
-        return function(str)
-            return lpegmatch(pattern,str)
-        end
-    else
-        return pattern
-    end
-end
-
--- print(lpeg.match(lpeg.replacer("e","a"),"test test"))
--- print(lpeg.match(lpeg.replacer{{"e","a"}},"test test"))
--- print(lpeg.match(lpeg.replacer({ e = "a", t = "x" }),"test test"))
-
-local splitters_f, splitters_s = { }, { }
-
-function lpeg.firstofsplit(separator) -- always return value
-    local splitter = splitters_f[separator]
-    if not splitter then
-        separator = P(separator)
-        splitter = C((1 - separator)^0)
-        splitters_f[separator] = splitter
-    end
-    return splitter
-end
-
-function lpeg.secondofsplit(separator) -- nil if not split
-    local splitter = splitters_s[separator]
-    if not splitter then
-        separator = P(separator)
-        splitter = (1 - separator)^0 * separator * C(anything^0)
-        splitters_s[separator] = splitter
-    end
-    return splitter
+      for i=1,#lst do
+        pattern=pattern+P(lst[i])
+      end
+    end
+  else
+    pattern=P(lst)
+  end
+  pattern=(1-pattern)^0*pattern
+  if makefunction then
+    return function(str)
+      return lpegmatch(pattern,str)
+    end
+  else
+    return pattern
+  end
+end
+local splitters_f,splitters_s={},{}
+function lpeg.firstofsplit(separator) 
+  local splitter=splitters_f[separator]
+  if not splitter then
+    separator=P(separator)
+    splitter=C((1-separator)^0)
+    splitters_f[separator]=splitter
+  end
+  return splitter
+end
+function lpeg.secondofsplit(separator) 
+  local splitter=splitters_s[separator]
+  if not splitter then
+    separator=P(separator)
+    splitter=(1-separator)^0*separator*C(anything^0)
+    splitters_s[separator]=splitter
+  end
+  return splitter
 end
-
 function lpeg.balancer(left,right)
-    left, right = P(left), P(right)
-    return P { left * ((1 - left - right) + V(1))^0 * right }
+  left,right=P(left),P(right)
+  return P { left*((1-left-right)+V(1))^0*right }
 end
-
--- print(1,lpegmatch(lpeg.firstofsplit(":"),"bc:de"))
--- print(2,lpegmatch(lpeg.firstofsplit(":"),":de")) -- empty
--- print(3,lpegmatch(lpeg.firstofsplit(":"),"bc"))
--- print(4,lpegmatch(lpeg.secondofsplit(":"),"bc:de"))
--- print(5,lpegmatch(lpeg.secondofsplit(":"),"bc:")) -- empty
--- print(6,lpegmatch(lpeg.secondofsplit(":",""),"bc"))
--- print(7,lpegmatch(lpeg.secondofsplit(":"),"bc"))
--- print(9,lpegmatch(lpeg.secondofsplit(":","123"),"bc"))
-
--- -- slower:
---
--- function lpeg.counter(pattern)
---     local n, pattern = 0, (lpeg.P(pattern)/function() n = n + 1 end  + lpeg.anything)^0
---     return function(str) n = 0 ; lpegmatch(pattern,str) ; return n end
--- end
-
-local nany = utf8char/""
-
+local nany=utf8char/""
 function lpeg.counter(pattern)
-    pattern = Cs((P(pattern)/" " + nany)^0)
-    return function(str)
-        return #lpegmatch(pattern,str)
-    end
-end
-
--- utf extensies
-
-local utfcharacters = utf and utf.characters or string.utfcharacters
-local utfgmatch     = unicode and unicode.utf8.gmatch
-local utfchar       = utf and utf.char or (unicode and unicode.utf8 and unicode.utf8.char)
-
-lpeg.UP = lpeg.P
-
+  pattern=Cs((P(pattern)/" "+nany)^0)
+  return function(str)
+    return #lpegmatch(pattern,str)
+  end
+end
+local utfcharacters=utf and utf.characters or string.utfcharacters
+local utfgmatch=unicode and unicode.utf8.gmatch
+local utfchar=utf and utf.char or (unicode and unicode.utf8 and unicode.utf8.char)
+lpeg.UP=lpeg.P
 if utfcharacters then
-
-    function lpeg.US(str)
-        local p = P(false)
-        for uc in utfcharacters(str) do
-            p = p + P(uc)
-        end
-        return p
+  function lpeg.US(str)
+    local p=P(false)
+    for uc in utfcharacters(str) do
+      p=p+P(uc)
     end
-
-
+    return p
+  end
 elseif utfgmatch then
-
-    function lpeg.US(str)
-        local p = P(false)
-        for uc in utfgmatch(str,".") do
-            p = p + P(uc)
-        end
-        return p
+  function lpeg.US(str)
+    local p=P(false)
+    for uc in utfgmatch(str,".") do
+      p=p+P(uc)
     end
-
+    return p
+  end
 else
-
-    function lpeg.US(str)
-        local p = P(false)
-        local f = function(uc)
-            p = p + P(uc)
-        end
-        lpegmatch((utf8char/f)^0,str)
-        return p
+  function lpeg.US(str)
+    local p=P(false)
+    local f=function(uc)
+      p=p+P(uc)
     end
-
+    lpegmatch((utf8char/f)^0,str)
+    return p
+  end
 end
-
-local range = utf8byte * utf8byte + Cc(false) -- utf8byte is already a capture
-
+local range=utf8byte*utf8byte+Cc(false) 
 function lpeg.UR(str,more)
-    local first, last
-    if type(str) == "number" then
-        first = str
-        last = more or first
-    else
-        first, last = lpegmatch(range,str)
-        if not last then
-            return P(str)
-        end
-    end
-    if first == last then
-        return P(str)
-    elseif utfchar and (last - first < 8) then -- a somewhat arbitrary criterium
-        local p = P(false)
-        for i=first,last do
-            p = p + P(utfchar(i))
-        end
-        return p -- nil when invalid range
-    else
-        local f = function(b)
-            return b >= first and b <= last
-        end
-        -- tricky, these nested captures
-        return utf8byte / f -- nil when invalid range
-    end
+  local first,last
+  if type(str)=="number" then
+    first=str
+    last=more or first
+  else
+    first,last=lpegmatch(range,str)
+    if not last then
+      return P(str)
+    end
+  end
+  if first==last then
+    return P(str)
+  elseif utfchar and (last-first<8) then 
+    local p=P(false)
+    for i=first,last do
+      p=p+P(utfchar(i))
+    end
+    return p 
+  else
+    local f=function(b)
+      return b>=first and b<=last
+    end
+    return utf8byte/f 
+  end
 end
-
--- print(lpeg.match(lpeg.Cs((C(lpeg.UR("αω"))/{ ["χ"] = "OEPS" })^0),"αωχαω"))
-
--- lpeg.print(lpeg.R("ab","cd","gh"))
--- lpeg.print(lpeg.P("a","b","c"))
--- lpeg.print(lpeg.S("a","b","c"))
-
--- print(lpeg.count("äáàa",lpeg.P("á") + lpeg.P("à")))
--- print(lpeg.count("äáàa",lpeg.UP("áà")))
--- print(lpeg.count("äáàa",lpeg.US("àá")))
--- print(lpeg.count("äáàa",lpeg.UR("aá")))
--- print(lpeg.count("äáàa",lpeg.UR("àá")))
--- print(lpeg.count("äáàa",lpeg.UR(0x0000,0xFFFF)))
-
 function lpeg.is_lpeg(p)
-    return p and lpegtype(p) == "pattern"
-end
-
-function lpeg.oneof(list,...) -- lpeg.oneof("elseif","else","if","then") -- assume proper order
-    if type(list) ~= "table" then
-        list = { list, ... }
-    end
- -- table.sort(list) -- longest match first
-    local p = P(list[1])
-    for l=2,#list do
-        p = p + P(list[l])
-    end
-    return p
-end
-
--- For the moment here, but it might move to utilities. Beware, we need to
--- have the longest keyword first, so 'aaa' comes beforte 'aa' which is why we
--- loop back from the end cq. prepend.
-
-local sort = table.sort
-
+  return p and lpegtype(p)=="pattern"
+end
+function lpeg.oneof(list,...) 
+  if type(list)~="table" then
+    list={ list,... }
+  end
+  local p=P(list[1])
+  for l=2,#list do
+    p=p+P(list[l])
+  end
+  return p
+end
+local sort=table.sort
 local function copyindexed(old)
-    local new = { }
-    for i=1,#old do
-        new[i] = old
-    end
-    return new
+  local new={}
+  for i=1,#old do
+    new[i]=old
+  end
+  return new
 end
-
 local function sortedkeys(tab)
-    local keys, s = { }, 0
-    for key,_ in next, tab do
-        s = s + 1
-        keys[s] = key
-    end
-    sort(keys)
-    return keys
+  local keys,s={},0
+  for key,_ in next,tab do
+    s=s+1
+    keys[s]=key
+  end
+  sort(keys)
+  return keys
 end
-
 function lpeg.append(list,pp,delayed,checked)
-    local p = pp
-    if #list > 0 then
-        local keys = copyindexed(list)
-        sort(keys)
-        for i=#keys,1,-1 do
-            local k = keys[i]
-            if p then
-                p = P(k) + p
-            else
-                p = P(k)
-            end
-        end
-    elseif delayed then -- hm, it looks like the lpeg parser resolves anyway
-        local keys = sortedkeys(list)
+  local p=pp
+  if #list>0 then
+    local keys=copyindexed(list)
+    sort(keys)
+    for i=#keys,1,-1 do
+      local k=keys[i]
+      if p then
+        p=P(k)+p
+      else
+        p=P(k)
+      end
+    end
+  elseif delayed then 
+    local keys=sortedkeys(list)
+    if p then
+      for i=1,#keys,1 do
+        local k=keys[i]
+        local v=list[k]
+        p=P(k)/list+p
+      end
+    else
+      for i=1,#keys do
+        local k=keys[i]
+        local v=list[k]
         if p then
-            for i=1,#keys,1 do
-                local k = keys[i]
-                local v = list[k]
-                p = P(k)/list + p
-            end
+          p=P(k)+p
         else
-            for i=1,#keys do
-                local k = keys[i]
-                local v = list[k]
-                if p then
-                    p = P(k) + p
-                else
-                    p = P(k)
-                end
-            end
-            if p then
-                p = p / list
-            end
-        end
-    elseif checked then
-        -- problem: substitution gives a capture
-        local keys = sortedkeys(list)
-        for i=1,#keys do
-            local k = keys[i]
-            local v = list[k]
-            if p then
-                if k == v then
-                    p = P(k) + p
-                else
-                    p = P(k)/v + p
-                end
-            else
-                if k == v then
-                    p = P(k)
-                else
-                    p = P(k)/v
-                end
-            end
-        end
-    else
-        local keys = sortedkeys(list)
-        for i=1,#keys do
-            local k = keys[i]
-            local v = list[k]
-            if p then
-                p = P(k)/v + p
-            else
-                p = P(k)/v
-            end
+          p=P(k)
         end
+      end
+      if p then
+        p=p/list
+      end
     end
-    return p
-end
-
--- inspect(lpeg.append({ a = "1", aa = "1", aaa = "1" } ,nil,true))
--- inspect(lpeg.append({ ["degree celsius"] = "1", celsius = "1", degree = "1" } ,nil,true))
-
--- function lpeg.exact_match(words,case_insensitive)
---     local pattern = concat(words)
---     if case_insensitive then
---         local pattern = S(upper(characters)) + S(lower(characters))
---         local list = { }
---         for i=1,#words do
---             list[lower(words[i])] = true
---         end
---         return Cmt(pattern^1, function(_,i,s)
---             return list[lower(s)] and i
---         end)
---     else
---         local pattern = S(concat(words))
---         local list = { }
---         for i=1,#words do
---             list[words[i]] = true
---         end
---         return Cmt(pattern^1, function(_,i,s)
---             return list[s] and i
---         end)
---     end
--- end
-
--- experiment:
-
-local function make(t)
-    local p
-    local keys = sortedkeys(t)
+  elseif checked then
+    local keys=sortedkeys(list)
     for i=1,#keys do
-        local k = keys[i]
-        local v = t[k]
-        if not p then
-            if next(v) then
-                p = P(k) * make(v)
-            else
-                p = P(k)
-            end
+      local k=keys[i]
+      local v=list[k]
+      if p then
+        if k==v then
+          p=P(k)+p
         else
-            if next(v) then
-                p = p + P(k) * make(v)
-            else
-                p = p + P(k)
-            end
+          p=P(k)/v+p
         end
-    end
-    return p
-end
-
-function lpeg.utfchartabletopattern(list) -- goes to util-lpg
-    local tree = { }
-    for i=1,#list do
-        local t = tree
-        for c in gmatch(list[i],".") do
-            if not t[c] then
-                t[c] = { }
-            end
-            t = t[c]
-        end
-    end
-    return make(tree)
-end
-
--- inspect ( lpeg.utfchartabletopattern {
---     utfchar(0x00A0), -- nbsp
---     utfchar(0x2000), -- enquad
---     utfchar(0x2001), -- emquad
---     utfchar(0x2002), -- enspace
---     utfchar(0x2003), -- emspace
---     utfchar(0x2004), -- threeperemspace
---     utfchar(0x2005), -- fourperemspace
---     utfchar(0x2006), -- sixperemspace
---     utfchar(0x2007), -- figurespace
---     utfchar(0x2008), -- punctuationspace
---     utfchar(0x2009), -- breakablethinspace
---     utfchar(0x200A), -- hairspace
---     utfchar(0x200B), -- zerowidthspace
---     utfchar(0x202F), -- narrownobreakspace
---     utfchar(0x205F), -- math thinspace
--- } )
-
--- a few handy ones:
---
--- faster than find(str,"[\n\r]") when match and # > 7 and always faster when # > 3
-
-patterns.containseol = lpeg.finder(eol) -- (1-eol)^0 * eol
-
--- The next pattern^n variant is based on an approach suggested
--- by Roberto: constructing a big repetition in chunks.
---
--- Being sparse is not needed, and only complicate matters and
--- the number of redundant entries is not that large.
-
-local function nextstep(n,step,result)
-    local m = n % step      -- mod(n,step)
-    local d = floor(n/step) -- div(n,step)
-    if d > 0 then
-        local v = V(tostring(step))
-        local s = result.start
-        for i=1,d do
-            if s then
-                s = v * s
-            else
-                s = v
-            end
+      else
+        if k==v then
+          p=P(k)
+        else
+          p=P(k)/v
         end
-        result.start = s
+      end
     end
-    if step > 1 and result.start then
-        local v = V(tostring(step/2))
-        result[tostring(step)] = v * v
+  else
+    local keys=sortedkeys(list)
+    for i=1,#keys do
+      local k=keys[i]
+      local v=list[k]
+      if p then
+        p=P(k)/v+p
+      else
+        p=P(k)/v
+      end
     end
-    if step > 0 then
-        return nextstep(m,step/2,result)
+  end
+  return p
+end
+local function make(t)
+  local p
+  local keys=sortedkeys(t)
+  for i=1,#keys do
+    local k=keys[i]
+    local v=t[k]
+    if not p then
+      if next(v) then
+        p=P(k)*make(v)
+      else
+        p=P(k)
+      end
     else
-        return result
-    end
+      if next(v) then
+        p=p+P(k)*make(v)
+      else
+        p=p+P(k)
+      end
+    end
+  end
+  return p
+end
+function lpeg.utfchartabletopattern(list) 
+  local tree={}
+  for i=1,#list do
+    local t=tree
+    for c in gmatch(list[i],".") do
+      if not t[c] then
+        t[c]={}
+      end
+      t=t[c]
+    end
+  end
+  return make(tree)
+end
+patterns.containseol=lpeg.finder(eol)
+local function nextstep(n,step,result)
+  local m=n%step   
+  local d=floor(n/step) 
+  if d>0 then
+    local v=V(tostring(step))
+    local s=result.start
+    for i=1,d do
+      if s then
+        s=v*s
+      else
+        s=v
+      end
+    end
+    result.start=s
+  end
+  if step>1 and result.start then
+    local v=V(tostring(step/2))
+    result[tostring(step)]=v*v
+  end
+  if step>0 then
+    return nextstep(m,step/2,result)
+  else
+    return result
+  end
 end
-
 function lpeg.times(pattern,n)
-    return P(nextstep(n,2^16,{ "start", ["1"] = pattern }))
+  return P(nextstep(n,2^16,{ "start",["1"]=pattern }))
 end
 
--- local p = lpeg.Cs((1 - lpeg.times(lpeg.P("AB"),25))^1)
--- local s = "12" .. string.rep("AB",20) .. "34" .. string.rep("AB",30) .. "56"
--- inspect(p)
--- print(lpeg.match(p,s))
-
 end -- closure
 
 do -- begin closure to overcome local limits and interference
 
-if not modules then modules = { } end modules ['l-functions'] = {
-    version   = 1.001,
-    comment   = "companion to luat-lib.mkiv",
-    author    = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
-    copyright = "PRAGMA ADE / ConTeXt Development Team",
-    license   = "see context related readme files"
+if not modules then modules={} end modules ['l-functions']={
+  version=1.001,
+  comment="companion to luat-lib.mkiv",
+  author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+  copyright="PRAGMA ADE / ConTeXt Development Team",
+  license="see context related readme files"
 }
-
-functions = functions or { }
-
+functions=functions or {}
 function functions.dummy() end
 
 end -- closure
 
 do -- begin closure to overcome local limits and interference
 
-if not modules then modules = { } end modules ['l-string'] = {
-    version   = 1.001,
-    comment   = "companion to luat-lib.mkiv",
-    author    = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
-    copyright = "PRAGMA ADE / ConTeXt Development Team",
-    license   = "see context related readme files"
+if not modules then modules={} end modules ['l-string']={
+  version=1.001,
+  comment="companion to luat-lib.mkiv",
+  author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+  copyright="PRAGMA ADE / ConTeXt Development Team",
+  license="see context related readme files"
 }
-
-local string = string
-local sub, gmatch, format, char, byte, rep, lower = string.sub, string.gmatch, string.format, string.char, string.byte, string.rep, string.lower
-local lpegmatch, patterns = lpeg.match, lpeg.patterns
-local P, S, C, Ct, Cc, Cs = lpeg.P, lpeg.S, lpeg.C, lpeg.Ct, lpeg.Cc, lpeg.Cs
-
--- Some functions are already defined in l-lpeg and maybe some from here will
--- move there (unless we also expose caches).
-
--- if not string.split then
---
---     function string.split(str,pattern)
---         local t = { }
---         if #str > 0 then
---             local n = 1
---             for s in gmatch(str..pattern,"(.-)"..pattern) do
---                 t[n] = s
---                 n = n + 1
---             end
---         end
---         return t
---     end
---
--- end
-
--- function string.unquoted(str)
---     return (gsub(str,"^([\"\'])(.*)%1$","%2")) -- interesting pattern
--- end
-
-local unquoted = patterns.squote * C(patterns.nosquote) * patterns.squote
-               + patterns.dquote * C(patterns.nodquote) * patterns.dquote
-
+local string=string
+local sub,gmatch,format,char,byte,rep,lower=string.sub,string.gmatch,string.format,string.char,string.byte,string.rep,string.lower
+local lpegmatch,patterns=lpeg.match,lpeg.patterns
+local P,S,C,Ct,Cc,Cs=lpeg.P,lpeg.S,lpeg.C,lpeg.Ct,lpeg.Cc,lpeg.Cs
+local unquoted=patterns.squote*C(patterns.nosquote)*patterns.squote+patterns.dquote*C(patterns.nodquote)*patterns.dquote
 function string.unquoted(str)
-    return lpegmatch(unquoted,str) or str
+  return lpegmatch(unquoted,str) or str
 end
-
--- print(string.unquoted("test"))
--- print(string.unquoted([["t\"est"]]))
--- print(string.unquoted([["t\"est"x]]))
--- print(string.unquoted("\'test\'"))
--- print(string.unquoted('"test"'))
--- print(string.unquoted('"test"'))
-
 function string.quoted(str)
-    return format("%q",str) -- always double quote
-end
-
-function string.count(str,pattern) -- variant 3
-    local n = 0
-    for _ in gmatch(str,pattern) do -- not for utf
-        n = n + 1
-    end
-    return n
-end
-
-function string.limit(str,n,sentinel) -- not utf proof
-    if #str > n then
-        sentinel = sentinel or "..."
-        return sub(str,1,(n-#sentinel)) .. sentinel
-    else
-        return str
-    end
+  return format("%q",str) 
+end
+function string.count(str,pattern) 
+  local n=0
+  for _ in gmatch(str,pattern) do 
+    n=n+1
+  end
+  return n
+end
+function string.limit(str,n,sentinel) 
+  if #str>n then
+    sentinel=sentinel or "..."
+    return sub(str,1,(n-#sentinel))..sentinel
+  else
+    return str
+  end
 end
-
-local stripper     = patterns.stripper
-local collapser    = patterns.collapser
-local longtostring = patterns.longtostring
-
+local stripper=patterns.stripper
+local collapser=patterns.collapser
+local longtostring=patterns.longtostring
 function string.strip(str)
-    return lpegmatch(stripper,str) or ""
+  return lpegmatch(stripper,str) or ""
 end
-
 function string.collapsespaces(str)
-    return lpegmatch(collapser,str) or ""
+  return lpegmatch(collapser,str) or ""
 end
-
 function string.longtostring(str)
-    return lpegmatch(longtostring,str) or ""
+  return lpegmatch(longtostring,str) or ""
 end
-
--- function string.is_empty(str)
---     return not find(str,"%S")
--- end
-
-local pattern = P(" ")^0 * P(-1)
-
+local pattern=P(" ")^0*P(-1)
 function string.is_empty(str)
-    if str == "" then
-        return true
-    else
-        return lpegmatch(pattern,str) and true or false
-    end
-end
-
--- if not string.escapedpattern then
---
---     local patterns_escapes = {
---         ["%"] = "%%",
---         ["."] = "%.",
---         ["+"] = "%+", ["-"] = "%-", ["*"] = "%*",
---         ["["] = "%[", ["]"] = "%]",
---         ["("] = "%(", [")"] = "%)",
---      -- ["{"] = "%{", ["}"] = "%}"
---      -- ["^"] = "%^", ["$"] = "%$",
---     }
---
---     local simple_escapes = {
---         ["-"] = "%-",
---         ["."] = "%.",
---         ["?"] = ".",
---         ["*"] = ".*",
---     }
---
---     function string.escapedpattern(str,simple)
---         return (gsub(str,".",simple and simple_escapes or patterns_escapes))
---     end
---
---     function string.topattern(str,lowercase,strict)
---         if str == "" then
---             return ".*"
---         else
---             str = gsub(str,".",simple_escapes)
---             if lowercase then
---                 str = lower(str)
---             end
---             if strict then
---                 return "^" .. str .. "$"
---             else
---                 return str
---             end
---         end
---     end
---
--- end
-
---- needs checking
-
-local anything     = patterns.anything
-local allescapes   = Cc("%") * S(".-+%?()[]*") -- also {} and ^$ ?
-local someescapes  = Cc("%") * S(".-+%()[]")   -- also {} and ^$ ?
-local matchescapes = Cc(".") * S("*?")         -- wildcard and single match
-
-local pattern_a = Cs ( ( allescapes + anything )^0 )
-local pattern_b = Cs ( ( someescapes + matchescapes + anything )^0 )
-local pattern_c = Cs ( Cc("^") * ( someescapes + matchescapes + anything )^0 * Cc("$") )
-
+  if str=="" then
+    return true
+  else
+    return lpegmatch(pattern,str) and true or false
+  end
+end
+local anything=patterns.anything
+local allescapes=Cc("%")*S(".-+%?()[]*") 
+local someescapes=Cc("%")*S(".-+%()[]")  
+local matchescapes=Cc(".")*S("*?")     
+local pattern_a=Cs ((allescapes+anything )^0 )
+local pattern_b=Cs ((someescapes+matchescapes+anything )^0 )
+local pattern_c=Cs (Cc("^")*(someescapes+matchescapes+anything )^0*Cc("$") )
 function string.escapedpattern(str,simple)
-    return lpegmatch(simple and pattern_b or pattern_a,str)
+  return lpegmatch(simple and pattern_b or pattern_a,str)
 end
-
 function string.topattern(str,lowercase,strict)
-    if str == "" then
-        return ".*"
-    elseif strict then
-        str = lpegmatch(pattern_c,str)
-    else
-        str = lpegmatch(pattern_b,str)
-    end
-    if lowercase then
-        return lower(str)
-    else
-        return str
-    end
+  if str=="" then
+    return ".*"
+  elseif strict then
+    str=lpegmatch(pattern_c,str)
+  else
+    str=lpegmatch(pattern_b,str)
+  end
+  if lowercase then
+    return lower(str)
+  else
+    return str
+  end
 end
-
--- print(string.escapedpattern("12+34*.tex",false))
--- print(string.escapedpattern("12+34*.tex",true))
--- print(string.topattern     ("12+34*.tex",false,false))
--- print(string.topattern     ("12+34*.tex",false,true))
-
 function string.valid(str,default)
-    return (type(str) == "string" and str ~= "" and str) or default or nil
+  return (type(str)=="string" and str~="" and str) or default or nil
 end
-
--- handy fallback
-
-string.itself  = function(s) return s end
-
--- also handy (see utf variant)
-
-local pattern = Ct(C(1)^0) -- string and not utf !
-
+string.itself=function(s) return s end
+local pattern=Ct(C(1)^0) 
 function string.totable(str)
-    return lpegmatch(pattern,str)
+  return lpegmatch(pattern,str)
 end
-
--- handy from within tex:
-
-local replacer = lpeg.replacer("@","%%") -- Watch the escaped % in lpeg!
-
+local replacer=lpeg.replacer("@","%%") 
 function string.tformat(fmt,...)
-    return format(lpegmatch(replacer,fmt),...)
+  return format(lpegmatch(replacer,fmt),...)
 end
-
--- obsolete names:
-
-string.quote   = string.quoted
-string.unquote = string.unquoted
+string.quote=string.quoted
+string.unquote=string.unquoted
 
 end -- closure
 
 do -- begin closure to overcome local limits and interference
 
-if not modules then modules = { } end modules ['l-table'] = {
-    version   = 1.001,
-    comment   = "companion to luat-lib.mkiv",
-    author    = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
-    copyright = "PRAGMA ADE / ConTeXt Development Team",
-    license   = "see context related readme files"
+if not modules then modules={} end modules ['l-table']={
+  version=1.001,
+  comment="companion to luat-lib.mkiv",
+  author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+  copyright="PRAGMA ADE / ConTeXt Development Team",
+  license="see context related readme files"
 }
-
-local type, next, tostring, tonumber, ipairs, select = type, next, tostring, tonumber, ipairs, select
-local table, string = table, string
-local concat, sort, insert, remove = table.concat, table.sort, table.insert, table.remove
-local format, lower, dump = string.format, string.lower, string.dump
-local getmetatable, setmetatable = getmetatable, setmetatable
-local getinfo = debug.getinfo
-local lpegmatch, patterns = lpeg.match, lpeg.patterns
-local floor = math.floor
-
--- extra functions, some might go (when not used)
-
-local stripper = patterns.stripper
-
+local type,next,tostring,tonumber,ipairs,select=type,next,tostring,tonumber,ipairs,select
+local table,string=table,string
+local concat,sort,insert,remove=table.concat,table.sort,table.insert,table.remove
+local format,lower,dump=string.format,string.lower,string.dump
+local getmetatable,setmetatable=getmetatable,setmetatable
+local getinfo=debug.getinfo
+local lpegmatch,patterns=lpeg.match,lpeg.patterns
+local floor=math.floor
+local stripper=patterns.stripper
 function table.strip(tab)
-    local lst, l = { }, 0
-    for i=1,#tab do
-        local s = lpegmatch(stripper,tab[i]) or ""
-        if s == "" then
-            -- skip this one
-        else
-            l = l + 1
-            lst[l] = s
-        end
+  local lst,l={},0
+  for i=1,#tab do
+    local s=lpegmatch(stripper,tab[i]) or ""
+    if s=="" then
+    else
+      l=l+1
+      lst[l]=s
     end
-    return lst
+  end
+  return lst
 end
-
 function table.keys(t)
-    if t then
-        local keys, k = { }, 0
-        for key, _ in next, t do
-            k = k + 1
-            keys[k] = key
-        end
-        return keys
-    else
-        return { }
+  if t then
+    local keys,k={},0
+    for key,_ in next,t do
+      k=k+1
+      keys[k]=key
     end
+    return keys
+  else
+    return {}
+  end
 end
-
 local function compare(a,b)
-    local ta, tb = type(a), type(b) -- needed, else 11 < 2
-    if ta == tb then
-        return a < b
-    else
-        return tostring(a) < tostring(b)
-    end
+  local ta,tb=type(a),type(b) 
+  if ta==tb then
+    return a<b
+  else
+    return tostring(a)<tostring(b)
+  end
 end
-
 local function sortedkeys(tab)
-    if tab then
-        local srt, category, s = { }, 0, 0 -- 0=unknown 1=string, 2=number 3=mixed
-        for key,_ in next, tab do
-            s = s + 1
-            srt[s] = key
-            if category == 3 then
-                -- no further check
-            else
-                local tkey = type(key)
-                if tkey == "string" then
-                    category = (category == 2 and 3) or 1
-                elseif tkey == "number" then
-                    category = (category == 1 and 3) or 2
-                else
-                    category = 3
-                end
-            end
-        end
-        if category == 0 or category == 3 then
-            sort(srt,compare)
+  if tab then
+    local srt,category,s={},0,0 
+    for key,_ in next,tab do
+      s=s+1
+      srt[s]=key
+      if category==3 then
+      else
+        local tkey=type(key)
+        if tkey=="string" then
+          category=(category==2 and 3) or 1
+        elseif tkey=="number" then
+          category=(category==1 and 3) or 2
         else
-            sort(srt)
+          category=3
         end
-        return srt
-    else
-        return { }
+      end
     end
-end
-
-local function sortedhashkeys(tab) -- fast one
-    if tab then
-        local srt, s = { }, 0
-        for key,_ in next, tab do
-            if key then
-                s= s + 1
-                srt[s] = key
-            end
-        end
-        sort(srt)
-        return srt
+    if category==0 or category==3 then
+      sort(srt,compare)
     else
-        return { }
-    end
+      sort(srt)
+    end
+    return srt
+  else
+    return {}
+  end
+end
+local function sortedhashkeys(tab) 
+  if tab then
+    local srt,s={},0
+    for key,_ in next,tab do
+      if key then
+        s=s+1
+        srt[s]=key
+      end
+    end
+    sort(srt)
+    return srt
+  else
+    return {}
+  end
 end
-
 function table.allkeys(t)
-    local keys = { }
-    for i=1,#t do
-        for k, v in next, t[i] do
-            keys[k] = true
-        end
+  local keys={}
+  for i=1,#t do
+    for k,v in next,t[i] do
+      keys[k]=true
     end
-    return sortedkeys(keys)
+  end
+  return sortedkeys(keys)
 end
-
-table.sortedkeys     = sortedkeys
-table.sortedhashkeys = sortedhashkeys
-
+table.sortedkeys=sortedkeys
+table.sortedhashkeys=sortedhashkeys
 local function nothing() end
-
 local function sortedhash(t)
-    if t then
-        local n, s = 0, sortedkeys(t) -- the robust one
-        local function kv(s)
-            n = n + 1
-            local k = s[n]
-            return k, t[k]
-        end
-        return kv, s
-    else
-        return nothing
-    end
-end
-
-table.sortedhash  = sortedhash
-table.sortedpairs = sortedhash -- obsolete
-
+  if t then
+    local n,s=0,sortedkeys(t) 
+    local function kv(s)
+      n=n+1
+      local k=s[n]
+      return k,t[k]
+    end
+    return kv,s
+  else
+    return nothing
+  end
+end
+table.sortedhash=sortedhash
+table.sortedpairs=sortedhash 
 function table.append(t,list)
-    local n = #t
-    for i=1,#list do
-        n = n + 1
-        t[n] = list[i]
-    end
-    return t
+  local n=#t
+  for i=1,#list do
+    n=n+1
+    t[n]=list[i]
+  end
+  return t
+end
+function table.prepend(t,list)
+  local nl=#list
+  local nt=nl+#t
+  for i=#t,1,-1 do
+    t[nt]=t[i]
+    nt=nt-1
+  end
+  for i=1,#list do
+    t[i]=list[i]
+  end
+  return t
+end
+function table.merge(t,...) 
+  t=t or {}
+  for i=1,select("#",...) do
+    for k,v in next,(select(i,...)) do
+      t[k]=v
+    end
+  end
+  return t
 end
-
-function table.prepend(t, list)
-    local nl = #list
-    local nt = nl + #t
-    for i=#t,1,-1 do
-        t[nt] = t[i]
-        nt = nt - 1
-    end
-    for i=1,#list do
-        t[i] = list[i]
-    end
-    return t
-end
-
--- function table.merge(t, ...) -- first one is target
---     t = t or { }
---     local lst = { ... }
---     for i=1,#lst do
---         for k, v in next, lst[i] do
---             t[k] = v
---         end
---     end
---     return t
--- end
-
-function table.merge(t, ...) -- first one is target
-    t = t or { }
-    for i=1,select("#",...) do
-        for k, v in next, (select(i,...)) do
-            t[k] = v
-        end
-    end
-    return t
-end
-
--- function table.merged(...)
---     local tmp, lst = { }, { ... }
---     for i=1,#lst do
---         for k, v in next, lst[i] do
---             tmp[k] = v
---         end
---     end
---     return tmp
--- end
-
 function table.merged(...)
-    local t = { }
-    for i=1,select("#",...) do
-        for k, v in next, (select(i,...)) do
-            t[k] = v
-        end
+  local t={}
+  for i=1,select("#",...) do
+    for k,v in next,(select(i,...)) do
+      t[k]=v
     end
-    return t
+  end
+  return t
 end
-
--- function table.imerge(t, ...)
---     local lst, nt = { ... }, #t
---     for i=1,#lst do
---         local nst = lst[i]
---         for j=1,#nst do
---             nt = nt + 1
---             t[nt] = nst[j]
---         end
---     end
---     return t
--- end
-
-function table.imerge(t, ...)
-    local nt = #t
-    for i=1,select("#",...) do
-        local nst = select(i,...)
-        for j=1,#nst do
-            nt = nt + 1
-            t[nt] = nst[j]
-        end
+function table.imerge(t,...)
+  local nt=#t
+  for i=1,select("#",...) do
+    local nst=select(i,...)
+    for j=1,#nst do
+      nt=nt+1
+      t[nt]=nst[j]
     end
-    return t
+  end
+  return t
 end
-
--- function table.imerged(...)
---     local tmp, ntmp, lst = { }, 0, {...}
---     for i=1,#lst do
---         local nst = lst[i]
---         for j=1,#nst do
---             ntmp = ntmp + 1
---             tmp[ntmp] = nst[j]
---         end
---     end
---     return tmp
--- end
-
 function table.imerged(...)
-    local tmp, ntmp = { }, 0
-    for i=1,select("#",...) do
-        local nst = select(i,...)
-        for j=1,#nst do
-            ntmp = ntmp + 1
-            tmp[ntmp] = nst[j]
-        end
+  local tmp,ntmp={},0
+  for i=1,select("#",...) do
+    local nst=select(i,...)
+    for j=1,#nst do
+      ntmp=ntmp+1
+      tmp[ntmp]=nst[j]
+    end
+  end
+  return tmp
+end
+local function fastcopy(old,metatabletoo) 
+  if old then
+    local new={}
+    for k,v in next,old do
+      if type(v)=="table" then
+        new[k]=fastcopy(v,metatabletoo) 
+      else
+        new[k]=v
+      end
+    end
+    if metatabletoo then
+      local mt=getmetatable(old)
+      if mt then
+        setmetatable(new,mt)
+      end
     end
-    return tmp
-end
-
-local function fastcopy(old,metatabletoo) -- fast one
-    if old then
-        local new = { }
-        for k, v in next, old do
-            if type(v) == "table" then
-                new[k] = fastcopy(v,metatabletoo) -- was just table.copy
-            else
-                new[k] = v
-            end
-        end
-        if metatabletoo then
-            -- optional second arg
-            local mt = getmetatable(old)
-            if mt then
-                setmetatable(new,mt)
-            end
-        end
-        return new
+    return new
+  else
+    return {}
+  end
+end
+local function copy(t,tables) 
+  tables=tables or {}
+  local tcopy={}
+  if not tables[t] then
+    tables[t]=tcopy
+  end
+  for i,v in next,t do 
+    if type(i)=="table" then
+      if tables[i] then
+        i=tables[i]
+      else
+        i=copy(i,tables)
+      end
+    end
+    if type(v)~="table" then
+      tcopy[i]=v
+    elseif tables[v] then
+      tcopy[i]=tables[v]
     else
-        return { }
-    end
-end
-
--- todo : copy without metatable
-
-local function copy(t, tables) -- taken from lua wiki, slightly adapted
-    tables = tables or { }
-    local tcopy = {}
-    if not tables[t] then
-        tables[t] = tcopy
-    end
-    for i,v in next, t do -- brrr, what happens with sparse indexed
-        if type(i) == "table" then
-            if tables[i] then
-                i = tables[i]
-            else
-                i = copy(i, tables)
-            end
-        end
-        if type(v) ~= "table" then
-            tcopy[i] = v
-        elseif tables[v] then
-            tcopy[i] = tables[v]
-        else
-            tcopy[i] = copy(v, tables)
-        end
-    end
-    local mt = getmetatable(t)
-    if mt then
-        setmetatable(tcopy,mt)
-    end
-    return tcopy
+      tcopy[i]=copy(v,tables)
+    end
+  end
+  local mt=getmetatable(t)
+  if mt then
+    setmetatable(tcopy,mt)
+  end
+  return tcopy
+end
+table.fastcopy=fastcopy
+table.copy=copy
+function table.derive(parent) 
+  local child={}
+  if parent then
+    setmetatable(child,{ __index=parent })
+  end
+  return child
 end
-
-table.fastcopy = fastcopy
-table.copy     = copy
-
-function table.derive(parent) -- for the moment not public
-    local child = { }
-    if parent then
-        setmetatable(child,{ __index = parent })
-    end
-    return child
-end
-
 function table.tohash(t,value)
-    local h = { }
-    if t then
-        if value == nil then value = true end
-        for _, v in next, t do -- no ipairs here
-            h[v] = value
-        end
+  local h={}
+  if t then
+    if value==nil then value=true end
+    for _,v in next,t do 
+      h[v]=value
     end
-    return h
+  end
+  return h
 end
-
 function table.fromhash(t)
-    local hsh, h = { }, 0
-    for k, v in next, t do -- no ipairs here
-        if v then
-            h = h + 1
-            hsh[h] = k
-        end
-    end
-    return hsh
-end
-
-local noquotes, hexify, handle, reduce, compact, inline, functions
-
-local reserved = table.tohash { -- intercept a language inconvenience: no reserved words as key
-    'and', 'break', 'do', 'else', 'elseif', 'end', 'false', 'for', 'function', 'if',
-    'in', 'local', 'nil', 'not', 'or', 'repeat', 'return', 'then', 'true', 'until', 'while',
+  local hsh,h={},0
+  for k,v in next,t do 
+    if v then
+      h=h+1
+      hsh[h]=k
+    end
+  end
+  return hsh
+end
+local noquotes,hexify,handle,reduce,compact,inline,functions
+local reserved=table.tohash { 
+  'and','break','do','else','elseif','end','false','for','function','if',
+  'in','local','nil','not','or','repeat','return','then','true','until','while',
 }
-
 local function simple_table(t)
-    if #t > 0 then
-        local n = 0
-        for _,v in next, t do
-            n = n + 1
-        end
-        if n == #t then
-            local tt, nt = { }, 0
-            for i=1,#t do
-                local v = t[i]
-                local tv = type(v)
-                if tv == "number" then
-                    nt = nt + 1
-                    if hexify then
-                        tt[nt] = format("0x%04X",v)
-                    else
-                        tt[nt] = tostring(v) -- tostring not needed
-                    end
-                elseif tv == "boolean" then
-                    nt = nt + 1
-                    tt[nt] = tostring(v)
-                elseif tv == "string" then
-                    nt = nt + 1
-                    tt[nt] = format("%q",v)
-                else
-                    tt = nil
-                    break
-                end
-            end
-            return tt
+  if #t>0 then
+    local n=0
+    for _,v in next,t do
+      n=n+1
+    end
+    if n==#t then
+      local tt,nt={},0
+      for i=1,#t do
+        local v=t[i]
+        local tv=type(v)
+        if tv=="number" then
+          nt=nt+1
+          if hexify then
+            tt[nt]=format("0x%04X",v)
+          else
+            tt[nt]=tostring(v) 
+          end
+        elseif tv=="boolean" then
+          nt=nt+1
+          tt[nt]=tostring(v)
+        elseif tv=="string" then
+          nt=nt+1
+          tt[nt]=format("%q",v)
+        else
+          tt=nil
+          break
         end
+      end
+      return tt
     end
-    return nil
+  end
+  return nil
 end
-
--- Because this is a core function of mkiv I moved some function calls
--- inline.
---
--- twice as fast in a test:
---
--- local propername = lpeg.P(lpeg.R("AZ","az","__") * lpeg.R("09","AZ","az", "__")^0 * lpeg.P(-1) )
-
--- problem: there no good number_to_string converter with the best resolution
-
--- probably using .. is faster than format
--- maybe split in a few cases (yes/no hexify)
-
--- todo: %g faster on numbers than %s
-
-local propername = patterns.propername -- was find(name,"^%a[%w%_]*$")
-
+local propername=patterns.propername 
 local function dummy() end
-
 local function do_serialize(root,name,depth,level,indexed)
-    if level > 0 then
-        depth = depth .. " "
-        if indexed then
-            handle(format("%s{",depth))
+  if level>0 then
+    depth=depth.." "
+    if indexed then
+      handle(format("%s{",depth))
+    else
+      local tn=type(name)
+      if tn=="number" then
+        if hexify then
+          handle(format("%s[0x%04X]={",depth,name))
         else
-            local tn = type(name)
-            if tn == "number" then
-                if hexify then
-                    handle(format("%s[0x%04X]={",depth,name))
-                else
-                    handle(format("%s[%s]={",depth,name))
-                end
-            elseif tn == "string" then
-                if noquotes and not reserved[name] and lpegmatch(propername,name) then
-                    handle(format("%s%s={",depth,name))
-                else
-                    handle(format("%s[%q]={",depth,name))
-                end
-            elseif tn == "boolean" then
-                handle(format("%s[%s]={",depth,tostring(name)))
-            else
-                handle(format("%s{",depth))
-            end
+          handle(format("%s[%s]={",depth,name))
         end
-    end
-    -- we could check for k (index) being number (cardinal)
-    if root and next(root) then
-     -- local first, last = nil, 0 -- #root cannot be trusted here (will be ok in 5.2 when ipairs is gone)
-     -- if compact then
-     --     -- NOT: for k=1,#root do (we need to quit at nil)
-     --     for k,v in ipairs(root) do -- can we use next?
-     --         if not first then first = k end
-     --         last = last + 1
-     --     end
-     -- end
-        local first, last = nil, 0
-        if compact then
-            last = #root
-            for k=1,last do
-                if root[k] == nil then
-                    last = k - 1
-                    break
-                end
-            end
-            if last > 0 then
-                first = 1
-            end
-        end
-        local sk = sortedkeys(root)
-        for i=1,#sk do
-            local k = sk[i]
-            local v = root[k]
-            --~ if v == root then
-                -- circular
-            --~ else
-            local t, tk = type(v), type(k)
-            if compact and first and tk == "number" and k >= first and k <= last then
-                if t == "number" then
-                    if hexify then
-                        handle(format("%s 0x%04X,",depth,v))
-                    else
-                        handle(format("%s %s,",depth,v)) -- %.99g
-                    end
-                elseif t == "string" then
-                    if reduce and tonumber(v) then
-                        handle(format("%s %s,",depth,v))
-                    else
-                        handle(format("%s %q,",depth,v))
-                    end
-                elseif t == "table" then
-                    if not next(v) then
-                        handle(format("%s {},",depth))
-                    elseif inline then -- and #t > 0
-                        local st = simple_table(v)
-                        if st then
-                            handle(format("%s { %s },",depth,concat(st,", ")))
-                        else
-                            do_serialize(v,k,depth,level+1,true)
-                        end
-                    else
-                        do_serialize(v,k,depth,level+1,true)
-                    end
-                elseif t == "boolean" then
-                    handle(format("%s %s,",depth,tostring(v)))
-                elseif t == "function" then
-                    if functions then
-                        handle(format('%s load(%q),',depth,dump(v)))
-                    else
-                        handle(format('%s "function",',depth))
-                    end
-                else
-                    handle(format("%s %q,",depth,tostring(v)))
-                end
-            elseif k == "__p__" then -- parent
-                if false then
-                    handle(format("%s __p__=nil,",depth))
-                end
-            elseif t == "number" then
-                if tk == "number" then
-                    if hexify then
-                        handle(format("%s [0x%04X]=0x%04X,",depth,k,v))
-                    else
-                        handle(format("%s [%s]=%s,",depth,k,v)) -- %.99g
-                    end
-                elseif tk == "boolean" then
-                    if hexify then
-                        handle(format("%s [%s]=0x%04X,",depth,tostring(k),v))
-                    else
-                        handle(format("%s [%s]=%s,",depth,tostring(k),v)) -- %.99g
-                    end
-                elseif noquotes and not reserved[k] and lpegmatch(propername,k) then
-                    if hexify then
-                        handle(format("%s %s=0x%04X,",depth,k,v))
-                    else
-                        handle(format("%s %s=%s,",depth,k,v)) -- %.99g
-                    end
-                else
-                    if hexify then
-                        handle(format("%s [%q]=0x%04X,",depth,k,v))
-                    else
-                        handle(format("%s [%q]=%s,",depth,k,v)) -- %.99g
-                    end
-                end
-            elseif t == "string" then
-                if reduce and tonumber(v) then
-                    if tk == "number" then
-                        if hexify then
-                            handle(format("%s [0x%04X]=%s,",depth,k,v))
-                        else
-                            handle(format("%s [%s]=%s,",depth,k,v))
-                        end
-                    elseif tk == "boolean" then
-                        handle(format("%s [%s]=%s,",depth,tostring(k),v))
-                    elseif noquotes and not reserved[k] and lpegmatch(propername,k) then
-                        handle(format("%s %s=%s,",depth,k,v))
-                    else
-                        handle(format("%s [%q]=%s,",depth,k,v))
-                    end
-                else
-                    if tk == "number" then
-                        if hexify then
-                            handle(format("%s [0x%04X]=%q,",depth,k,v))
-                        else
-                            handle(format("%s [%s]=%q,",depth,k,v))
-                        end
-                    elseif tk == "boolean" then
-                        handle(format("%s [%s]=%q,",depth,tostring(k),v))
-                    elseif noquotes and not reserved[k] and lpegmatch(propername,k) then
-                        handle(format("%s %s=%q,",depth,k,v))
-                    else
-                        handle(format("%s [%q]=%q,",depth,k,v))
-                    end
-                end
-            elseif t == "table" then
-                if not next(v) then
-                    if tk == "number" then
-                        if hexify then
-                            handle(format("%s [0x%04X]={},",depth,k))
-                        else
-                            handle(format("%s [%s]={},",depth,k))
-                        end
-                    elseif tk == "boolean" then
-                        handle(format("%s [%s]={},",depth,tostring(k)))
-                    elseif noquotes and not reserved[k] and lpegmatch(propername,k) then
-                        handle(format("%s %s={},",depth,k))
-                    else
-                        handle(format("%s [%q]={},",depth,k))
-                    end
-                elseif inline then
-                    local st = simple_table(v)
-                    if st then
-                        if tk == "number" then
-                            if hexify then
-                                handle(format("%s [0x%04X]={ %s },",depth,k,concat(st,", ")))
-                            else
-                                handle(format("%s [%s]={ %s },",depth,k,concat(st,", ")))
-                            end
-                        elseif tk == "boolean" then
-                            handle(format("%s [%s]={ %s },",depth,tostring(k),concat(st,", ")))
-                        elseif noquotes and not reserved[k] and lpegmatch(propername,k) then
-                            handle(format("%s %s={ %s },",depth,k,concat(st,", ")))
-                        else
-                            handle(format("%s [%q]={ %s },",depth,k,concat(st,", ")))
-                        end
-                    else
-                        do_serialize(v,k,depth,level+1)
-                    end
-                else
-                    do_serialize(v,k,depth,level+1)
-                end
-            elseif t == "boolean" then
-                if tk == "number" then
-                    if hexify then
-                        handle(format("%s [0x%04X]=%s,",depth,k,tostring(v)))
-                    else
-                        handle(format("%s [%s]=%s,",depth,k,tostring(v)))
-                    end
-                elseif tk == "boolean" then
-                    handle(format("%s [%s]=%s,",depth,tostring(k),tostring(v)))
-                elseif noquotes and not reserved[k] and lpegmatch(propername,k) then
-                    handle(format("%s %s=%s,",depth,k,tostring(v)))
-                else
-                    handle(format("%s [%q]=%s,",depth,k,tostring(v)))
-                end
-            elseif t == "function" then
-                if functions then
-                    local f = getinfo(v).what == "C" and dump(dummy) or dump(v)
-                 -- local f = getinfo(v).what == "C" and dump(function(...) return v(...) end) or dump(v)
-                    if tk == "number" then
-                        if hexify then
-                            handle(format("%s [0x%04X]=load(%q),",depth,k,f))
-                        else
-                            handle(format("%s [%s]=load(%q),",depth,k,f))
-                        end
-                    elseif tk == "boolean" then
-                        handle(format("%s [%s]=load(%q),",depth,tostring(k),f))
-                    elseif noquotes and not reserved[k] and lpegmatch(propername,k) then
-                        handle(format("%s %s=load(%q),",depth,k,f))
-                    else
-                        handle(format("%s [%q]=load(%q),",depth,k,f))
-                    end
-                end
+      elseif tn=="string" then
+        if noquotes and not reserved[name] and lpegmatch(propername,name) then
+          handle(format("%s%s={",depth,name))
+        else
+          handle(format("%s[%q]={",depth,name))
+        end
+      elseif tn=="boolean" then
+        handle(format("%s[%s]={",depth,tostring(name)))
+      else
+        handle(format("%s{",depth))
+      end
+    end
+  end
+  if root and next(root) then
+    local first,last=nil,0
+    if compact then
+      last=#root
+      for k=1,last do
+        if root[k]==nil then
+          last=k-1
+          break
+        end
+      end
+      if last>0 then
+        first=1
+      end
+    end
+    local sk=sortedkeys(root)
+    for i=1,#sk do
+      local k=sk[i]
+      local v=root[k]
+      local t,tk=type(v),type(k)
+      if compact and first and tk=="number" and k>=first and k<=last then
+        if t=="number" then
+          if hexify then
+            handle(format("%s 0x%04X,",depth,v))
+          else
+            handle(format("%s %s,",depth,v)) 
+          end
+        elseif t=="string" then
+          if reduce and tonumber(v) then
+            handle(format("%s %s,",depth,v))
+          else
+            handle(format("%s %q,",depth,v))
+          end
+        elseif t=="table" then
+          if not next(v) then
+            handle(format("%s {},",depth))
+          elseif inline then 
+            local st=simple_table(v)
+            if st then
+              handle(format("%s { %s },",depth,concat(st,", ")))
             else
-                if tk == "number" then
-                    if hexify then
-                        handle(format("%s [0x%04X]=%q,",depth,k,tostring(v)))
-                    else
-                        handle(format("%s [%s]=%q,",depth,k,tostring(v)))
-                    end
-                elseif tk == "boolean" then
-                    handle(format("%s [%s]=%q,",depth,tostring(k),tostring(v)))
-                elseif noquotes and not reserved[k] and lpegmatch(propername,k) then
-                    handle(format("%s %s=%q,",depth,k,tostring(v)))
-                else
-                    handle(format("%s [%q]=%q,",depth,k,tostring(v)))
-                end
+              do_serialize(v,k,depth,level+1,true)
+            end
+          else
+            do_serialize(v,k,depth,level+1,true)
+          end
+        elseif t=="boolean" then
+          handle(format("%s %s,",depth,tostring(v)))
+        elseif t=="function" then
+          if functions then
+            handle(format('%s load(%q),',depth,dump(v)))
+          else
+            handle(format('%s "function",',depth))
+          end
+        else
+          handle(format("%s %q,",depth,tostring(v)))
+        end
+      elseif k=="__p__" then 
+        if false then
+          handle(format("%s __p__=nil,",depth))
+        end
+      elseif t=="number" then
+        if tk=="number" then
+          if hexify then
+            handle(format("%s [0x%04X]=0x%04X,",depth,k,v))
+          else
+            handle(format("%s [%s]=%s,",depth,k,v)) 
+          end
+        elseif tk=="boolean" then
+          if hexify then
+            handle(format("%s [%s]=0x%04X,",depth,tostring(k),v))
+          else
+            handle(format("%s [%s]=%s,",depth,tostring(k),v)) 
+          end
+        elseif noquotes and not reserved[k] and lpegmatch(propername,k) then
+          if hexify then
+            handle(format("%s %s=0x%04X,",depth,k,v))
+          else
+            handle(format("%s %s=%s,",depth,k,v)) 
+          end
+        else
+          if hexify then
+            handle(format("%s [%q]=0x%04X,",depth,k,v))
+          else
+            handle(format("%s [%q]=%s,",depth,k,v)) 
+          end
+        end
+      elseif t=="string" then
+        if reduce and tonumber(v) then
+          if tk=="number" then
+            if hexify then
+              handle(format("%s [0x%04X]=%s,",depth,k,v))
+            else
+              handle(format("%s [%s]=%s,",depth,k,v))
+            end
+          elseif tk=="boolean" then
+            handle(format("%s [%s]=%s,",depth,tostring(k),v))
+          elseif noquotes and not reserved[k] and lpegmatch(propername,k) then
+            handle(format("%s %s=%s,",depth,k,v))
+          else
+            handle(format("%s [%q]=%s,",depth,k,v))
+          end
+        else
+          if tk=="number" then
+            if hexify then
+              handle(format("%s [0x%04X]=%q,",depth,k,v))
+            else
+              handle(format("%s [%s]=%q,",depth,k,v))
+            end
+          elseif tk=="boolean" then
+            handle(format("%s [%s]=%q,",depth,tostring(k),v))
+          elseif noquotes and not reserved[k] and lpegmatch(propername,k) then
+            handle(format("%s %s=%q,",depth,k,v))
+          else
+            handle(format("%s [%q]=%q,",depth,k,v))
+          end
+        end
+      elseif t=="table" then
+        if not next(v) then
+          if tk=="number" then
+            if hexify then
+              handle(format("%s [0x%04X]={},",depth,k))
+            else
+              handle(format("%s [%s]={},",depth,k))
+            end
+          elseif tk=="boolean" then
+            handle(format("%s [%s]={},",depth,tostring(k)))
+          elseif noquotes and not reserved[k] and lpegmatch(propername,k) then
+            handle(format("%s %s={},",depth,k))
+          else
+            handle(format("%s [%q]={},",depth,k))
+          end
+        elseif inline then
+          local st=simple_table(v)
+          if st then
+            if tk=="number" then
+              if hexify then
+                handle(format("%s [0x%04X]={ %s },",depth,k,concat(st,", ")))
+              else
+                handle(format("%s [%s]={ %s },",depth,k,concat(st,", ")))
+              end
+            elseif tk=="boolean" then
+              handle(format("%s [%s]={ %s },",depth,tostring(k),concat(st,", ")))
+            elseif noquotes and not reserved[k] and lpegmatch(propername,k) then
+              handle(format("%s %s={ %s },",depth,k,concat(st,", ")))
+            else
+              handle(format("%s [%q]={ %s },",depth,k,concat(st,", ")))
             end
-            --~ end
-        end
-    end
-   if level > 0 then
-        handle(format("%s},",depth))
-    end
-end
-
--- replacing handle by a direct t[#t+1] = ... (plus test) is not much
--- faster (0.03 on 1.00 for zapfino.tma)
-
-local function serialize(_handle,root,name,specification) -- handle wins
-    local tname = type(name)
-    if type(specification) == "table" then
-        noquotes  = specification.noquotes
-        hexify    = specification.hexify
-        handle    = _handle or specification.handle or print
-        reduce    = specification.reduce or false
-        functions = specification.functions
-        compact   = specification.compact
-        inline    = specification.inline and compact
-        if functions == nil then
-            functions = true
-        end
-        if compact == nil then
-            compact = true
-        end
-        if inline == nil then
-            inline = compact
-        end
-    else
-        noquotes  = false
-        hexify    = false
-        handle    = _handle or print
-        reduce    = false
-        compact   = true
-        inline    = true
-        functions = true
-    end
-    if tname == "string" then
-        if name == "return" then
-            handle("return {")
+          else
+            do_serialize(v,k,depth,level+1)
+          end
         else
-            handle(name .. "={")
-        end
-    elseif tname == "number" then
-        if hexify then
-            handle(format("[0x%04X]={",name))
+          do_serialize(v,k,depth,level+1)
+        end
+      elseif t=="boolean" then
+        if tk=="number" then
+          if hexify then
+            handle(format("%s [0x%04X]=%s,",depth,k,tostring(v)))
+          else
+            handle(format("%s [%s]=%s,",depth,k,tostring(v)))
+          end
+        elseif tk=="boolean" then
+          handle(format("%s [%s]=%s,",depth,tostring(k),tostring(v)))
+        elseif noquotes and not reserved[k] and lpegmatch(propername,k) then
+          handle(format("%s %s=%s,",depth,k,tostring(v)))
         else
-            handle("[" .. name .. "]={")
-        end
-    elseif tname == "boolean" then
-        if name then
-            handle("return {")
+          handle(format("%s [%q]=%s,",depth,k,tostring(v)))
+        end
+      elseif t=="function" then
+        if functions then
+          local f=getinfo(v).what=="C" and dump(dummy) or dump(v)
+          if tk=="number" then
+            if hexify then
+              handle(format("%s [0x%04X]=load(%q),",depth,k,f))
+            else
+              handle(format("%s [%s]=load(%q),",depth,k,f))
+            end
+          elseif tk=="boolean" then
+            handle(format("%s [%s]=load(%q),",depth,tostring(k),f))
+          elseif noquotes and not reserved[k] and lpegmatch(propername,k) then
+            handle(format("%s %s=load(%q),",depth,k,f))
+          else
+            handle(format("%s [%q]=load(%q),",depth,k,f))
+          end
+        end
+      else
+        if tk=="number" then
+          if hexify then
+            handle(format("%s [0x%04X]=%q,",depth,k,tostring(v)))
+          else
+            handle(format("%s [%s]=%q,",depth,k,tostring(v)))
+          end
+        elseif tk=="boolean" then
+          handle(format("%s [%s]=%q,",depth,tostring(k),tostring(v)))
+        elseif noquotes and not reserved[k] and lpegmatch(propername,k) then
+          handle(format("%s %s=%q,",depth,k,tostring(v)))
         else
-            handle("{")
-        end
+          handle(format("%s [%q]=%q,",depth,k,tostring(v)))
+        end
+      end
+    end
+  end
+  if level>0 then
+    handle(format("%s},",depth))
+  end
+end
+local function serialize(_handle,root,name,specification) 
+  local tname=type(name)
+  if type(specification)=="table" then
+    noquotes=specification.noquotes
+    hexify=specification.hexify
+    handle=_handle or specification.handle or print
+    reduce=specification.reduce or false
+    functions=specification.functions
+    compact=specification.compact
+    inline=specification.inline and compact
+    if functions==nil then
+      functions=true
+    end
+    if compact==nil then
+      compact=true
+    end
+    if inline==nil then
+      inline=compact
+    end
+  else
+    noquotes=false
+    hexify=false
+    handle=_handle or print
+    reduce=false
+    compact=true
+    inline=true
+    functions=true
+  end
+  if tname=="string" then
+    if name=="return" then
+      handle("return {")
     else
-        handle("t={")
-    end
-    if root then
-        -- The dummy access will initialize a table that has a delayed initialization
-        -- using a metatable. (maybe explicitly test for metatable)
-        if getmetatable(root) then -- todo: make this an option, maybe even per subtable
-            local dummy = root._w_h_a_t_e_v_e_r_
-            root._w_h_a_t_e_v_e_r_ = nil
-        end
-        -- Let's forget about empty tables.
-        if next(root) then
-            do_serialize(root,name,"",0)
-        end
+      handle(name.."={")
     end
-    handle("}")
-end
-
--- name:
---
--- true     : return     { }
--- false    :            { }
--- nil      : t        = { }
--- string   : string   = { }
--- "return" : return     { }
--- number   : [number] = { }
-
-function table.serialize(root,name,specification)
-    local t, n = { }, 0
-    local function flush(s)
-        n = n + 1
-        t[n] = s
+  elseif tname=="number" then
+    if hexify then
+      handle(format("[0x%04X]={",name))
+    else
+      handle("["..name.."]={")
     end
-    serialize(flush,root,name,specification)
-    return concat(t,"\n")
-end
-
-table.tohandle = serialize
-
--- sometimes tables are real use (zapfino extra pro is some 85M) in which
--- case a stepwise serialization is nice; actually, we could consider:
---
--- for line in table.serializer(root,name,reduce,noquotes) do
---    ...(line)
--- end
---
--- so this is on the todo list
-
-local maxtab = 2*1024
-
-function table.tofile(filename,root,name,specification)
-    local f = io.open(filename,'w')
-    if f then
-        if maxtab > 1 then
-            local t, n = { }, 0
-            local function flush(s)
-                n = n + 1
-                t[n] = s
-                if n > maxtab then
-                    f:write(concat(t,"\n"),"\n") -- hm, write(sometable) should be nice
-                    t, n = { }, 0 -- we could recycle t if needed
-                end
-            end
-            serialize(flush,root,name,specification)
-            f:write(concat(t,"\n"),"\n")
-        else
-            local function flush(s)
-                f:write(s,"\n")
-            end
-            serialize(flush,root,name,specification)
-        end
-        f:close()
-        io.flush()
+  elseif tname=="boolean" then
+    if name then
+      handle("return {")
+    else
+      handle("{")
     end
-end
-
-local function flattened(t,f,depth)
-    if f == nil then
-        f = { }
-        depth = 0xFFFF
-    elseif tonumber(f) then
-        -- assume that only two arguments are given
-        depth = f
-        f = { }
-    elseif not depth then
-        depth = 0xFFFF
-    end
-    for k, v in next, t do
-        if type(k) ~= "number" then
-            if depth > 0 and type(v) == "table" then
-                flattened(v,f,depth-1)
-            else
-                f[k] = v
-            end
-        end
+  else
+    handle("t={")
+  end
+  if root then
+    if getmetatable(root) then 
+      local dummy=root._w_h_a_t_e_v_e_r_
+      root._w_h_a_t_e_v_e_r_=nil
     end
-    local n = #f
-    for k=1,#t do
-        local v = t[k]
-        if depth > 0 and type(v) == "table" then
-            flattened(v,f,depth-1)
-            n = #f
-        else
-            n = n + 1
-            f[n] = v
-        end
+    if next(root) then
+      do_serialize(root,name,"",0)
     end
-    return f
+  end
+  handle("}")
 end
-
-table.flattened = flattened
-
-local function unnest(t,f) -- only used in mk, for old times sake
-    if not f then          -- and only relevant for token lists
-        f = { }            -- this one can become obsolete
-    end
-    for i=1,#t do
-        local v = t[i]
-        if type(v) == "table" then
-            if type(v[1]) == "table" then
-                unnest(v,f)
-            else
-                f[#f+1] = v
-            end
-        else
-            f[#f+1] = v
-        end
+function table.serialize(root,name,specification)
+  local t,n={},0
+  local function flush(s)
+    n=n+1
+    t[n]=s
+  end
+  serialize(flush,root,name,specification)
+  return concat(t,"\n")
+end
+table.tohandle=serialize
+local maxtab=2*1024
+function table.tofile(filename,root,name,specification)
+  local f=io.open(filename,'w')
+  if f then
+    if maxtab>1 then
+      local t,n={},0
+      local function flush(s)
+        n=n+1
+        t[n]=s
+        if n>maxtab then
+          f:write(concat(t,"\n"),"\n") 
+          t,n={},0 
+        end
+      end
+      serialize(flush,root,name,specification)
+      f:write(concat(t,"\n"),"\n")
+    else
+      local function flush(s)
+        f:write(s,"\n")
+      end
+      serialize(flush,root,name,specification)
     end
-    return f
-end
-
-function table.unnest(t) -- bad name
-    return unnest(t)
+    f:close()
+    io.flush()
+  end
 end
-
-local function are_equal(a,b,n,m) -- indexed
-    if a and b and #a == #b then
-        n = n or 1
-        m = m or #a
-        for i=n,m do
-            local ai, bi = a[i], b[i]
-            if ai==bi then
-                -- same
-            elseif type(ai) == "table" and type(bi) == "table" then
-                if not are_equal(ai,bi) then
-                    return false
-                end
-            else
-                return false
-            end
-        end
-        return true
+local function flattened(t,f,depth)
+  if f==nil then
+    f={}
+    depth=0xFFFF
+  elseif tonumber(f) then
+    depth=f
+    f={}
+  elseif not depth then
+    depth=0xFFFF
+  end
+  for k,v in next,t do
+    if type(k)~="number" then
+      if depth>0 and type(v)=="table" then
+        flattened(v,f,depth-1)
+      else
+        f[k]=v
+      end
+    end
+  end
+  local n=#f
+  for k=1,#t do
+    local v=t[k]
+    if depth>0 and type(v)=="table" then
+      flattened(v,f,depth-1)
+      n=#f
+    else
+      n=n+1
+      f[n]=v
+    end
+  end
+  return f
+end
+table.flattened=flattened
+local function unnest(t,f) 
+  if not f then     
+    f={}      
+  end
+  for i=1,#t do
+    local v=t[i]
+    if type(v)=="table" then
+      if type(v[1])=="table" then
+        unnest(v,f)
+      else
+        f[#f+1]=v
+      end
     else
+      f[#f+1]=v
+    end
+  end
+  return f
+end
+function table.unnest(t) 
+  return unnest(t)
+end
+local function are_equal(a,b,n,m) 
+  if a and b and #a==#b then
+    n=n or 1
+    m=m or #a
+    for i=n,m do
+      local ai,bi=a[i],b[i]
+      if ai==bi then
+      elseif type(ai)=="table" and type(bi)=="table" then
+        if not are_equal(ai,bi) then
+          return false
+        end
+      else
         return false
-    end
-end
-
-local function identical(a,b) -- assumes same structure
-    for ka, va in next, a do
-        local vb = b[ka]
-        if va == vb then
-            -- same
-        elseif type(va) == "table" and  type(vb) == "table" then
-            if not identical(va,vb) then
-                return false
-            end
-        else
-            return false
-        end
+      end
     end
     return true
-end
-
-table.identical = identical
-table.are_equal = are_equal
-
--- maybe also make a combined one
-
-function table.compact(t) -- remove empty tables, assumes subtables
-    if t then
-        for k, v in next, t do
-            if not next(v) then -- no type checking
-                t[k] = nil
-            end
-        end
-    end
-end
-
-function table.contains(t, v)
-    if t then
-        for i=1, #t do
-            if t[i] == v then
-                return i
-            end
-        end
-    end
+  else
     return false
-end
-
-function table.count(t)
-    local n = 0
-    for k, v in next, t do
-        n = n + 1
+  end
+end
+local function identical(a,b) 
+  for ka,va in next,a do
+    local vb=b[ka]
+    if va==vb then
+    elseif type(va)=="table" and type(vb)=="table" then
+      if not identical(va,vb) then
+        return false
+      end
+    else
+      return false
     end
-    return n
+  end
+  return true
 end
-
-function table.swapped(t,s) -- hash
-    local n = { }
-    if s then
-        for k, v in next, s do
-            n[k] = v
-        end
+table.identical=identical
+table.are_equal=are_equal
+function table.compact(t) 
+  if t then
+    for k,v in next,t do
+      if not next(v) then 
+        t[k]=nil
+      end
     end
-    for k, v in next, t do
-        n[v] = k
-    end
-    return n
+  end
 end
-
-function table.mirrored(t) -- hash
-    local n = { }
-    for k, v in next, t do
-        n[v] = k
-        n[k] = v
+function table.contains(t,v)
+  if t then
+    for i=1,#t do
+      if t[i]==v then
+        return i
+      end
     end
-    return n
+  end
+  return false
+end
+function table.count(t)
+  local n=0
+  for k,v in next,t do
+    n=n+1
+  end
+  return n
+end
+function table.swapped(t,s) 
+  local n={}
+  if s then
+    for k,v in next,s do
+      n[k]=v
+    end
+  end
+  for k,v in next,t do
+    n[v]=k
+  end
+  return n
+end
+function table.mirrored(t) 
+  local n={}
+  for k,v in next,t do
+    n[v]=k
+    n[k]=v
+  end
+  return n
 end
-
 function table.reversed(t)
-    if t then
-        local tt, tn = { }, #t
-        if tn > 0 then
-            local ttn = 0
-            for i=tn,1,-1 do
-                ttn = ttn + 1
-                tt[ttn] = t[i]
-            end
-        end
-        return tt
-    end
+  if t then
+    local tt,tn={},#t
+    if tn>0 then
+      local ttn=0
+      for i=tn,1,-1 do
+        ttn=ttn+1
+        tt[ttn]=t[i]
+      end
+    end
+    return tt
+  end
 end
-
 function table.reverse(t)
-    if t then
-        local n = #t
-        for i=1,floor(n/2) do
-            local j = n - i + 1
-            t[i], t[j] = t[j], t[i]
-        end
-        return t
-    end
-end
-
-function table.sequenced(t,sep) -- hash only
-    if t then
-        local s, n = { }, 0
-        for k, v in sortedhash(t) do
-            if simple then
-                if v == true then
-                    n = n + 1
-                    s[n] = k
-                elseif v and v~= "" then
-                    n = n + 1
-                    s[n] = k .. "=" .. tostring(v)
-                end
-            else
-                n = n + 1
-                s[n] = k .. "=" .. tostring(v)
-            end
-        end
-        return concat(s, sep or " | ")
-    else
-        return ""
+  if t then
+    local n=#t
+    for i=1,floor(n/2) do
+      local j=n-i+1
+      t[i],t[j]=t[j],t[i]
     end
+    return t
+  end
+end
+function table.sequenced(t,sep) 
+  if t then
+    local s,n={},0
+    for k,v in sortedhash(t) do
+      if simple then
+        if v==true then
+          n=n+1
+          s[n]=k
+        elseif v and v~="" then
+          n=n+1
+          s[n]=k.."="..tostring(v)
+        end
+      else
+        n=n+1
+        s[n]=k.."="..tostring(v)
+      end
+    end
+    return concat(s,sep or " | ")
+  else
+    return ""
+  end
 end
-
 function table.print(t,...)
-    if type(t) ~= "table" then
-        print(tostring(t))
-    else
-        serialize(print,t,...)
-    end
+  if type(t)~="table" then
+    print(tostring(t))
+  else
+    serialize(print,t,...)
+  end
 end
-
-setinspector(function(v) if type(v) == "table" then serialize(print,v,"table") return true end end)
-
--- -- -- obsolete but we keep them for a while and might comment them later -- -- --
-
--- roughly: copy-loop : unpack : sub == 0.9 : 0.4 : 0.45 (so in critical apps, use unpack)
-
+setinspector(function(v) if type(v)=="table" then serialize(print,v,"table") return true end end)
 function table.sub(t,i,j)
-    return { unpack(t,i,j) }
+  return { unpack(t,i,j) }
 end
-
--- slower than #t on indexed tables (#t only returns the size of the numerically indexed slice)
-
 function table.is_empty(t)
-    return not t or not next(t)
+  return not t or not next(t)
 end
-
 function table.has_one_entry(t)
-    return t and not next(t,next(t))
+  return t and not next(t,next(t))
 end
-
--- new
-
-function table.loweredkeys(t) -- maybe utf
-    local l = { }
-    for k, v in next, t do
-        l[lower(k)] = v
-    end
-    return l
+function table.loweredkeys(t) 
+  local l={}
+  for k,v in next,t do
+    l[lower(k)]=v
+  end
+  return l
 end
-
--- new, might move (maybe duplicate)
-
 function table.unique(old)
-    local hash = { }
-    local new = { }
-    local n = 0
-    for i=1,#old do
-        local oi = old[i]
-        if not hash[oi] then
-            n = n + 1
-            new[n] = oi
-            hash[oi] = true
-        end
-    end
-    return new
+  local hash={}
+  local new={}
+  local n=0
+  for i=1,#old do
+    local oi=old[i]
+    if not hash[oi] then
+      n=n+1
+      new[n]=oi
+      hash[oi]=true
+    end
+  end
+  return new
 end
-
 function table.sorted(t,...)
-    sort(t,...)
-    return t -- still sorts in-place
+  sort(t,...)
+  return t 
 end
 
 end -- closure
 
 do -- begin closure to overcome local limits and interference
 
-if not modules then modules = { } end modules ['l-boolean'] = {
-    version   = 1.001,
-    comment   = "companion to luat-lib.mkiv",
-    author    = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
-    copyright = "PRAGMA ADE / ConTeXt Development Team",
-    license   = "see context related readme files"
+if not modules then modules={} end modules ['l-io']={
+  version=1.001,
+  comment="companion to luat-lib.mkiv",
+  author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+  copyright="PRAGMA ADE / ConTeXt Development Team",
+  license="see context related readme files"
 }
-
-local type, tonumber = type, tonumber
-
-boolean = boolean or { }
-local boolean = boolean
-
-function boolean.tonumber(b)
-    if b then return 1 else return 0 end -- test and return or return
+local io=io
+local byte,find,gsub,format=string.byte,string.find,string.gsub,string.format
+local concat=table.concat
+local floor=math.floor
+local type=type
+if string.find(os.getenv("PATH"),";") then
+  io.fileseparator,io.pathseparator="\\",";"
+else
+  io.fileseparator,io.pathseparator="/",":"
 end
-
-function toboolean(str,tolerant)
-    if  str == nil then
-        return false
-    elseif str == false then
-        return false
-    elseif str == true then
-        return true
-    elseif str == "true" then
-        return true
-    elseif str == "false" then
-        return false
-    elseif not tolerant then
-        return false
-    elseif str == 0 then
-        return false
-    elseif (tonumber(str) or 0) > 0 then
-        return true
+local function readall(f)
+  return f:read("*all")
+end
+local function readall(f)
+  local size=f:seek("end")
+  if size==0 then
+    return ""
+  elseif size<1024*1024 then
+    f:seek("set",0)
+    return f:read('*all')
+  else
+    local done=f:seek("set",0)
+    if size<1024*1024 then
+      step=1024*1024
+    elseif size>16*1024*1024 then
+      step=16*1024*1024
     else
-        return str == "yes" or str == "on" or str == "t"
+      step=floor(size/(1024*1024))*1024*1024/8
     end
+    local data={}
+    while true do
+      local r=f:read(step)
+      if not r then
+        return concat(data)
+      else
+        data[#data+1]=r
+      end
+    end
+  end
+end
+io.readall=readall
+function io.loaddata(filename,textmode) 
+  local f=io.open(filename,(textmode and 'r') or 'rb')
+  if f then
+    local data=readall(f)
+    f:close()
+    if #data>0 then
+      return data
+    end
+  end
 end
-
-string.toboolean = toboolean
-
-function string.booleanstring(str)
-    if  str == nil then
-        return false
-    elseif str == false then
-        return false
-    elseif str == true then
-        return true
-    elseif str == "true" then
-        return true
-    elseif str == "false" then
-        return false
-    elseif str == 0 then
-        return false
-    elseif (tonumber(str) or 0) > 0 then
-        return true
+function io.savedata(filename,data,joiner)
+  local f=io.open(filename,"wb")
+  if f then
+    if type(data)=="table" then
+      f:write(concat(data,joiner or ""))
+    elseif type(data)=="function" then
+      data(f)
     else
-        return str == "yes" or str == "on" or str == "t"
+      f:write(data or "")
     end
+    f:close()
+    io.flush()
+    return true
+  else
+    return false
+  end
+end
+function io.loadlines(filename,n) 
+  local f=io.open(filename,'r')
+  if not f then
+  elseif n then
+    local lines={}
+    for i=1,n do
+      local line=f:read("*lines")
+      if line then
+        lines[#lines+1]=line
+      else
+        break
+      end
+    end
+    f:close()
+    lines=concat(lines,"\n")
+    if #lines>0 then
+      return lines
+    end
+  else
+    local line=f:read("*line") or ""
+    f:close()
+    if #line>0 then
+      return line
+    end
+  end
 end
-
-function string.is_boolean(str,default)
-    if type(str) == "string" then
-        if str == "true" or str == "yes" or str == "on" or str == "t" then
-            return true
-        elseif str == "false" or str == "no" or str == "off" or str == "f" then
-            return false
-        end
+function io.loadchunk(filename,n)
+  local f=io.open(filename,'rb')
+  if f then
+    local data=f:read(n or 1024)
+    f:close()
+    if #data>0 then
+      return data
     end
-    return default
+  end
 end
-
-end -- closure
-
-do -- begin closure to overcome local limits and interference
-
-if not modules then modules = { } end modules ['l-math'] = {
-    version   = 1.001,
-    comment   = "companion to luat-lib.mkiv",
-    author    = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
-    copyright = "PRAGMA ADE / ConTeXt Development Team",
-    license   = "see context related readme files"
-}
-
-local floor, sin, cos, tan = math.floor, math.sin, math.cos, math.tan
-
-if not math.round then
-    function math.round(x) return floor(x + 0.5) end
+function io.exists(filename)
+  local f=io.open(filename)
+  if f==nil then
+    return false
+  else
+    f:close()
+    return true
+  end
 end
-
-if not math.div then
-    function math.div(n,m) return floor(n/m) end
+function io.size(filename)
+  local f=io.open(filename)
+  if f==nil then
+    return 0
+  else
+    local s=f:seek("end")
+    f:close()
+    return s
+  end
 end
-
-if not math.mod then
-    function math.mod(n,m) return n % m end
+function io.noflines(f)
+  if type(f)=="string" then
+    local f=io.open(filename)
+    if f then
+      local n=f and io.noflines(f) or 0
+      f:close()
+      return n
+    else
+      return 0
+    end
+  else
+    local n=0
+    for _ in f:lines() do
+      n=n+1
+    end
+    f:seek('set',0)
+    return n
+  end
+end
+local nextchar={
+  [ 4]=function(f)
+    return f:read(1,1,1,1)
+  end,
+  [ 2]=function(f)
+    return f:read(1,1)
+  end,
+  [ 1]=function(f)
+    return f:read(1)
+  end,
+  [-2]=function(f)
+    local a,b=f:read(1,1)
+    return b,a
+  end,
+  [-4]=function(f)
+    local a,b,c,d=f:read(1,1,1,1)
+    return d,c,b,a
+  end
+}
+function io.characters(f,n)
+  if f then
+    return nextchar[n or 1],f
+  end
+end
+local nextbyte={
+  [4]=function(f)
+    local a,b,c,d=f:read(1,1,1,1)
+    if d then
+      return byte(a),byte(b),byte(c),byte(d)
+    end
+  end,
+  [3]=function(f)
+    local a,b,c=f:read(1,1,1)
+    if b then
+      return byte(a),byte(b),byte(c)
+    end
+  end,
+  [2]=function(f)
+    local a,b=f:read(1,1)
+    if b then
+      return byte(a),byte(b)
+    end
+  end,
+  [1]=function (f)
+    local a=f:read(1)
+    if a then
+      return byte(a)
+    end
+  end,
+  [-2]=function (f)
+    local a,b=f:read(1,1)
+    if b then
+      return byte(b),byte(a)
+    end
+  end,
+  [-3]=function(f)
+    local a,b,c=f:read(1,1,1)
+    if b then
+      return byte(c),byte(b),byte(a)
+    end
+  end,
+  [-4]=function(f)
+    local a,b,c,d=f:read(1,1,1,1)
+    if d then
+      return byte(d),byte(c),byte(b),byte(a)
+    end
+  end
+}
+function io.bytes(f,n)
+  if f then
+    return nextbyte[n or 1],f
+  else
+    return nil,nil
+  end
 end
-
-local pipi = 2*math.pi/360
-
-if not math.sind then
-    function math.sind(d) return sin(d*pipi) end
-    function math.cosd(d) return cos(d*pipi) end
-    function math.tand(d) return tan(d*pipi) end
+function io.ask(question,default,options)
+  while true do
+    io.write(question)
+    if options then
+      io.write(format(" [%s]",concat(options,"|")))
+    end
+    if default then
+      io.write(format(" [%s]",default))
+    end
+    io.write(format(" "))
+    io.flush()
+    local answer=io.read()
+    answer=gsub(answer,"^%s*(.*)%s*$","%1")
+    if answer=="" and default then
+      return default
+    elseif not options then
+      return answer
+    else
+      for k=1,#options do
+        if options[k]==answer then
+          return answer
+        end
+      end
+      local pattern="^"..answer
+      for k=1,#options do
+        local v=options[k]
+        if find(v,pattern) then
+          return v
+        end
+      end
+    end
+  end
 end
-
-if not math.odd then
-    function math.odd (n) return n % 2 ~= 0 end
-    function math.even(n) return n % 2 == 0 end
+local function readnumber(f,n,m)
+  if m then
+    f:seek("set",n)
+    n=m
+  end
+  if n==1 then
+    return byte(f:read(1))
+  elseif n==2 then
+    local a,b=byte(f:read(2),1,2)
+    return 256*a+b
+  elseif n==3 then
+    local a,b,c=byte(f:read(3),1,3)
+    return 256*256*a+256*b+c
+  elseif n==4 then
+    local a,b,c,d=byte(f:read(4),1,4)
+    return 256*256*256*a+256*256*b+256*c+d
+  elseif n==8 then
+    local a,b=readnumber(f,4),readnumber(f,4)
+    return 256*a+b
+  elseif n==12 then
+    local a,b,c=readnumber(f,4),readnumber(f,4),readnumber(f,4)
+    return 256*256*a+256*b+c
+  elseif n==-2 then
+    local b,a=byte(f:read(2),1,2)
+    return 256*a+b
+  elseif n==-3 then
+    local c,b,a=byte(f:read(3),1,3)
+    return 256*256*a+256*b+c
+  elseif n==-4 then
+    local d,c,b,a=byte(f:read(4),1,4)
+    return 256*256*256*a+256*256*b+256*c+d
+  elseif n==-8 then
+    local h,g,f,e,d,c,b,a=byte(f:read(8),1,8)
+    return 256*256*256*256*256*256*256*a+256*256*256*256*256*256*b+256*256*256*256*256*c+256*256*256*256*d+256*256*256*e+256*256*f+256*g+h
+  else
+    return 0
+  end
+end
+io.readnumber=readnumber
+function io.readstring(f,n,m)
+  if m then
+    f:seek("set",n)
+    n=m
+  end
+  local str=gsub(f:read(n),"\000","")
+  return str
 end
+if not io.i_limiter then function io.i_limiter() end end 
+if not io.o_limiter then function io.o_limiter() end end
 
 end -- closure
 
 do -- begin closure to overcome local limits and interference
 
-if not modules then modules = { } end modules ['l-file'] = {
-    version   = 1.001,
-    comment   = "companion to luat-lib.mkiv",
-    author    = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
-    copyright = "PRAGMA ADE / ConTeXt Development Team",
-    license   = "see context related readme files"
+if not modules then modules={} end modules ['l-file']={
+  version=1.001,
+  comment="companion to luat-lib.mkiv",
+  author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+  copyright="PRAGMA ADE / ConTeXt Development Team",
+  license="see context related readme files"
 }
-
--- needs a cleanup
-
-file       = file or { }
-local file = file
-
+file=file or {}
+local file=file
 if not lfs then
-
-    lfs = {
-        getcurrentdir = function()
-            return "."
-        end,
-        attributes = function()
-            return nil
-        end,
-        isfile = function(name)
-            local f = io.open(name,'rb')
-            if f then
-                f:close()
-                return true
-            end
-        end,
-        isdir = function(name)
-            print("you need to load lfs")
-            return false
-        end
-    }
-
-elseif not lfs.isfile then
-
-    local attributes = lfs.attributes
-
-    function lfs.isdir(name)
-        return attributes(name,"mode") == "directory"
-    end
-
-    function lfs.isfile(name)
-        return attributes(name,"mode") == "file"
+  lfs={
+    getcurrentdir=function()
+      return "."
+    end,
+    attributes=function()
+      return nil
+    end,
+    isfile=function(name)
+      local f=io.open(name,'rb')
+      if f then
+        f:close()
+        return true
+      end
+    end,
+    isdir=function(name)
+      print("you need to load lfs")
+      return false
     end
-
- -- function lfs.isdir(name)
- --     local a = attributes(name)
- --     return a and a.mode == "directory"
- -- end
-
- -- function lfs.isfile(name)
- --     local a = attributes(name)
- --     return a and a.mode == "file"
- -- end
-
-end
-
-local insert, concat = table.insert, table.concat
-local match = string.match
-local lpegmatch = lpeg.match
-local getcurrentdir, attributes = lfs.currentdir, lfs.attributes
-local checkedsplit = string.checkedsplit
-
--- local patterns = file.patterns or { }
--- file.patterns  = patterns
-
-local P, R, S, C, Cs, Cp, Cc, Ct = lpeg.P, lpeg.R, lpeg.S, lpeg.C, lpeg.Cs, lpeg.Cp, lpeg.Cc, lpeg.Ct
-
-local colon     = P(":")
-local period    = P(".")
-local periods   = P("..")
-local fwslash   = P("/")
-local bwslash   = P("\\")
-local slashes   = S("\\/")
-local noperiod  = 1-period
-local noslashes = 1-slashes
-local name      = noperiod^1
-local suffix    = period/"" * (1-period-slashes)^1 * -1
-
------ pattern = C((noslashes^0 * slashes^1)^1)
-local pattern = C((1 - (slashes^1 * noslashes^1 * -1))^1) * P(1) -- there must be a more efficient way
-
+  }
+elseif not lfs.isfile then
+  local attributes=lfs.attributes
+  function lfs.isdir(name)
+    return attributes(name,"mode")=="directory"
+  end
+  function lfs.isfile(name)
+    return attributes(name,"mode")=="file"
+  end
+end
+local insert,concat=table.insert,table.concat
+local match=string.match
+local lpegmatch=lpeg.match
+local getcurrentdir,attributes=lfs.currentdir,lfs.attributes
+local checkedsplit=string.checkedsplit
+local P,R,S,C,Cs,Cp,Cc,Ct=lpeg.P,lpeg.R,lpeg.S,lpeg.C,lpeg.Cs,lpeg.Cp,lpeg.Cc,lpeg.Ct
+local colon=P(":")
+local period=P(".")
+local periods=P("..")
+local fwslash=P("/")
+local bwslash=P("\\")
+local slashes=S("\\/")
+local noperiod=1-period
+local noslashes=1-slashes
+local name=noperiod^1
+local suffix=period/""*(1-period-slashes)^1*-1
+local pattern=C((1-(slashes^1*noslashes^1*-1))^1)*P(1) 
 local function pathpart(name,default)
-    return name and lpegmatch(pattern,name) or default or ""
+  return name and lpegmatch(pattern,name) or default or ""
 end
-
-local pattern = (noslashes^0 * slashes)^1 * C(noslashes^1) * -1
-
+local pattern=(noslashes^0*slashes)^1*C(noslashes^1)*-1
 local function basename(name)
-    return name and lpegmatch(pattern,name) or name
+  return name and lpegmatch(pattern,name) or name
 end
-
--- print(pathpart("file"))
--- print(pathpart("dir/file"))
--- print(pathpart("/dir/file"))
--- print(basename("file"))
--- print(basename("dir/file"))
--- print(basename("/dir/file"))
-
-local pattern = (noslashes^0 * slashes^1)^0 * Cs((1-suffix)^1) * suffix^0
-
+local pattern=(noslashes^0*slashes^1)^0*Cs((1-suffix)^1)*suffix^0
 local function nameonly(name)
-    return name and lpegmatch(pattern,name) or name
+  return name and lpegmatch(pattern,name) or name
 end
-
-local pattern = (noslashes^0 * slashes)^0 * (noperiod^1 * period)^1 * C(noperiod^1) * -1
-
+local pattern=(noslashes^0*slashes)^0*(noperiod^1*period)^1*C(noperiod^1)*-1
 local function suffixonly(name)
-    return name and lpegmatch(pattern,name) or ""
-end
-
-file.pathpart   = pathpart
-file.basename   = basename
-file.nameonly   = nameonly
-file.suffixonly = suffixonly
-file.suffix     = suffixonly
-
-file.dirname    = pathpart   -- obsolete
-file.extname    = suffixonly -- obsolete
-
--- actually these are schemes
-
-local drive  = C(R("az","AZ")) * colon
-local path   = C((noslashes^0 * slashes)^0)
-local suffix = period * C(P(1-period)^0 * P(-1))
-local base   = C((1-suffix)^0)
-local rest   = C(P(1)^0)
-
-drive  = drive  + Cc("")
-path   = path   + Cc("")
-base   = base   + Cc("")
-suffix = suffix + Cc("")
-
-local pattern_a =   drive * path  *   base * suffix
-local pattern_b =           path  *   base * suffix
-local pattern_c = C(drive * path) * C(base * suffix) -- trick: two extra captures
-local pattern_d =           path  *   rest
-
+  return name and lpegmatch(pattern,name) or ""
+end
+file.pathpart=pathpart
+file.basename=basename
+file.nameonly=nameonly
+file.suffixonly=suffixonly
+file.suffix=suffixonly
+file.dirname=pathpart  
+file.extname=suffixonly
+local drive=C(R("az","AZ"))*colon
+local path=C((noslashes^0*slashes)^0)
+local suffix=period*C(P(1-period)^0*P(-1))
+local base=C((1-suffix)^0)
+local rest=C(P(1)^0)
+drive=drive+Cc("")
+path=path+Cc("")
+base=base+Cc("")
+suffix=suffix+Cc("")
+local pattern_a=drive*path*base*suffix
+local pattern_b=path*base*suffix
+local pattern_c=C(drive*path)*C(base*suffix) 
+local pattern_d=path*rest
 function file.splitname(str,splitdrive)
-    if not str then
-        -- error
-    elseif splitdrive then
-        return lpegmatch(pattern_a,str) -- returns drive, path, base, suffix
-    else
-        return lpegmatch(pattern_b,str) -- returns path, base, suffix
-    end
+  if not str then
+  elseif splitdrive then
+    return lpegmatch(pattern_a,str) 
+  else
+    return lpegmatch(pattern_b,str) 
+  end
 end
-
 function file.splitbase(str)
-    return str and lpegmatch(pattern_d,str) -- returns path, base+suffix
+  return str and lpegmatch(pattern_d,str) 
 end
-
----- stripslash = C((1 - P("/")^1*P(-1))^0)
-
 function file.nametotable(str,splitdrive)
-    if str then
-        local path, drive, subpath, name, base, suffix = lpegmatch(pattern_c,str)
-     -- if path ~= "" then
-     --     path = lpegmatch(stripslash,path) -- unfortunate hack, maybe this becomes default
-     -- end
-        if splitdrive then
-            return {
-                path    = path,
-                drive   = drive,
-                subpath = subpath,
-                name    = name,
-                base    = base,
-                suffix  = suffix,
-            }
-        else
-            return {
-                path    = path,
-                name    = name,
-                base    = base,
-                suffix  = suffix,
-            }
-        end
+  if str then
+    local path,drive,subpath,name,base,suffix=lpegmatch(pattern_c,str)
+    if splitdrive then
+      return {
+        path=path,
+        drive=drive,
+        subpath=subpath,
+        name=name,
+        base=base,
+        suffix=suffix,
+      }
+    else
+      return {
+        path=path,
+        name=name,
+        base=base,
+        suffix=suffix,
+      }
     end
+  end
 end
-
--- print(file.splitname("file"))
--- print(file.splitname("dir/file"))
--- print(file.splitname("/dir/file"))
--- print(file.splitname("file"))
--- print(file.splitname("dir/file"))
--- print(file.splitname("/dir/file"))
-
--- inspect(file.nametotable("file.ext"))
--- inspect(file.nametotable("dir/file.ext"))
--- inspect(file.nametotable("/dir/file.ext"))
--- inspect(file.nametotable("file.ext"))
--- inspect(file.nametotable("dir/file.ext"))
--- inspect(file.nametotable("/dir/file.ext"))
-
------ pattern = Cs(((period * noperiod^1 * -1) / "" + 1)^1)
-local pattern = Cs(((period * (1-period-slashes)^1 * -1) / "" + 1)^1)
-
+local pattern=Cs(((period*(1-period-slashes)^1*-1)/""+1)^1)
 function file.removesuffix(name)
-    return name and lpegmatch(pattern,name)
+  return name and lpegmatch(pattern,name)
 end
-
--- local pattern = (noslashes^0 * slashes)^0 * (noperiod^1 * period)^1 * Cp() * noperiod^1 * -1
---
--- function file.addsuffix(name, suffix)
---     local p = lpegmatch(pattern,name)
---     if p then
---         return name
---     else
---         return name .. "." .. suffix
---     end
--- end
-
-local suffix  = period/"" * (1-period-slashes)^1 * -1
-local pattern = Cs((noslashes^0 * slashes^1)^0 * ((1-suffix)^1)) * Cs(suffix)
-
+local suffix=period/""*(1-period-slashes)^1*-1
+local pattern=Cs((noslashes^0*slashes^1)^0*((1-suffix)^1))*Cs(suffix)
 function file.addsuffix(filename,suffix,criterium)
-    if not filename or not suffix or suffix == "" then
-        return filename
-    elseif criterium == true then
-        return filename .. "." .. suffix
-    elseif not criterium then
-        local n, s = lpegmatch(pattern,filename)
-        if not s or s == "" then
-            return filename .. "." .. suffix
-        else
+  if not filename or not suffix or suffix=="" then
+    return filename
+  elseif criterium==true then
+    return filename.."."..suffix
+  elseif not criterium then
+    local n,s=lpegmatch(pattern,filename)
+    if not s or s=="" then
+      return filename.."."..suffix
+    else
+      return filename
+    end
+  else
+    local n,s=lpegmatch(pattern,filename)
+    if s and s~="" then
+      local t=type(criterium)
+      if t=="table" then
+        for i=1,#criterium do
+          if s==criterium[i] then
             return filename
+          end
         end
-    else
-        local n, s = lpegmatch(pattern,filename)
-        if s and s ~= "" then
-            local t = type(criterium)
-            if t == "table" then
-                -- keep if in criterium
-                for i=1,#criterium do
-                    if s == criterium[i] then
-                        return filename
-                    end
-                end
-            elseif t == "string" then
-                -- keep if criterium
-                if s == criterium then
-                    return filename
-                end
-            end
+      elseif t=="string" then
+        if s==criterium then
+          return filename
         end
-        return (n or filename) .. "." .. suffix
+      end
     end
+    return (n or filename).."."..suffix
+  end
 end
-
--- print("1 " .. file.addsuffix("name","new")                   .. " -> name.new")
--- print("2 " .. file.addsuffix("name.old","new")               .. " -> name.old")
--- print("3 " .. file.addsuffix("name.old","new",true)          .. " -> name.old.new")
--- print("4 " .. file.addsuffix("name.old","new","new")         .. " -> name.new")
--- print("5 " .. file.addsuffix("name.old","new","old")         .. " -> name.old")
--- print("6 " .. file.addsuffix("name.old","new","foo")         .. " -> name.new")
--- print("7 " .. file.addsuffix("name.old","new",{"foo","bar"}) .. " -> name.new")
--- print("8 " .. file.addsuffix("name.old","new",{"old","bar"}) .. " -> name.old")
-
-local suffix  = period * (1-period-slashes)^1 * -1
-local pattern = Cs((1-suffix)^0)
-
+local suffix=period*(1-period-slashes)^1*-1
+local pattern=Cs((1-suffix)^0)
 function file.replacesuffix(name,suffix)
-    if name and suffix and suffix ~= "" then
-        return lpegmatch(pattern,name) .. "." .. suffix
-    else
-        return name
-    end
+  if name and suffix and suffix~="" then
+    return lpegmatch(pattern,name).."."..suffix
+  else
+    return name
+  end
 end
-
---
-
-local reslasher = lpeg.replacer(P("\\"),"/")
-
+local reslasher=lpeg.replacer(P("\\"),"/")
 function file.reslash(str)
-    return str and lpegmatch(reslasher,str)
+  return str and lpegmatch(reslasher,str)
 end
-
--- We should be able to use:
---
--- local writable = P(1) * P("w") * Cc(true)
---
--- function file.is_writable(name)
---     local a = attributes(name) or attributes(pathpart(name,"."))
---     return a and lpegmatch(writable,a.permissions) or false
--- end
---
--- But after some testing Taco and I came up with the more robust
--- variant:
-
 function file.is_writable(name)
-    if not name then
-        -- error
-    elseif lfs.isdir(name) then
-        name = name .. "/m_t_x_t_e_s_t.tmp"
-        local f = io.open(name,"wb")
-        if f then
-            f:close()
-            os.remove(name)
-            return true
-        end
-    elseif lfs.isfile(name) then
-        local f = io.open(name,"ab")
-        if f then
-            f:close()
-            return true
-        end
-    else
-        local f = io.open(name,"ab")
-        if f then
-            f:close()
-            os.remove(name)
-            return true
-        end
+  if not name then
+  elseif lfs.isdir(name) then
+    name=name.."/m_t_x_t_e_s_t.tmp"
+    local f=io.open(name,"wb")
+    if f then
+      f:close()
+      os.remove(name)
+      return true
     end
-    return false
-end
-
-local readable = P("r") * Cc(true)
-
-function file.is_readable(name)
-    if name then
-        local a = attributes(name)
-        return a and lpegmatch(readable,a.permissions) or false
-    else
-        return false
+  elseif lfs.isfile(name) then
+    local f=io.open(name,"ab")
+    if f then
+      f:close()
+      return true
     end
-end
-
-file.isreadable = file.is_readable -- depricated
-file.iswritable = file.is_writable -- depricated
-
-function file.size(name)
-    if name then
-        local a = attributes(name)
-        return a and a.size or 0
-    else
-        return 0
+  else
+    local f=io.open(name,"ab")
+    if f then
+      f:close()
+      os.remove(name)
+      return true
     end
+  end
+  return false
 end
-
-function file.splitpath(str,separator) -- string .. reslash is a bonus (we could do a direct split)
-    return str and checkedsplit(lpegmatch(reslasher,str),separator or io.pathseparator)
-end
-
-function file.joinpath(tab,separator) -- table
-    return tab and concat(tab,separator or io.pathseparator) -- can have trailing //
+local readable=P("r")*Cc(true)
+function file.is_readable(name)
+  if name then
+    local a=attributes(name)
+    return a and lpegmatch(readable,a.permissions) or false
+  else
+    return false
+  end
 end
-
-local stripper  = Cs(P(fwslash)^0/"" * reslasher)
-local isnetwork = fwslash * fwslash * (1-fwslash) + (1-fwslash-colon)^1 * colon
-local isroot    = fwslash^1 * -1
-local hasroot   = fwslash^1
-
-local deslasher = lpeg.replacer(S("\\/")^1,"/")
-
--- If we have a network or prefix then there is a change that we end up with two
--- // in the middle ... we could prevent this if we (1) expand prefixes: and (2)
--- split and rebuild as url. Of course we could assume no network paths (which
--- makes sense) adn assume either mapped drives (windows) or mounts (unix) but
--- then we still have to deal with urls ... anyhow, multiple // are never a real
--- problem but just ugly.
-
+file.isreadable=file.is_readable 
+file.iswritable=file.is_writable 
+function file.size(name)
+  if name then
+    local a=attributes(name)
+    return a and a.size or 0
+  else
+    return 0
+  end
+end
+function file.splitpath(str,separator) 
+  return str and checkedsplit(lpegmatch(reslasher,str),separator or io.pathseparator)
+end
+function file.joinpath(tab,separator) 
+  return tab and concat(tab,separator or io.pathseparator) 
+end
+local stripper=Cs(P(fwslash)^0/""*reslasher)
+local isnetwork=fwslash*fwslash*(1-fwslash)+(1-fwslash-colon)^1*colon
+local isroot=fwslash^1*-1
+local hasroot=fwslash^1
+local deslasher=lpeg.replacer(S("\\/")^1,"/")
 function file.join(...)
-    local lst = { ... }
-    local one = lst[1]
-    if lpegmatch(isnetwork,one) then
-        local two = lpegmatch(deslasher,concat(lst,"/",2))
-        return one .. "/" .. two
-    elseif lpegmatch(isroot,one) then
-        local two = lpegmatch(deslasher,concat(lst,"/",2))
-        if lpegmatch(hasroot,two) then
-            return two
-        else
-            return "/" .. two
-        end
-    elseif one == "" then
-        return lpegmatch(stripper,concat(lst,"/",2))
+  local lst={... }
+  local one=lst[1]
+  if lpegmatch(isnetwork,one) then
+    local two=lpegmatch(deslasher,concat(lst,"/",2))
+    return one.."/"..two
+  elseif lpegmatch(isroot,one) then
+    local two=lpegmatch(deslasher,concat(lst,"/",2))
+    if lpegmatch(hasroot,two) then
+      return two
     else
-        return lpegmatch(deslasher,concat(lst,"/"))
-    end
-end
-
--- print(file.join("c:/whatever","name"))
--- print(file.join("//","/y"))
--- print(file.join("/","/y"))
--- print(file.join("","/y"))
--- print(file.join("/x/","/y"))
--- print(file.join("x/","/y"))
--- print(file.join("http://","/y"))
--- print(file.join("http://a","/y"))
--- print(file.join("http:///a","/y"))
--- print(file.join("//nas-1","/y"))
-
--- The previous one fails on "a.b/c"  so Taco came up with a split based
--- variant. After some skyping we got it sort of compatible with the old
--- one. After that the anchoring to currentdir was added in a better way.
--- Of course there are some optimizations too. Finally we had to deal with
--- windows drive prefixes and things like sys://. Eventually gsubs and
--- finds were replaced by lpegs.
-
-local drivespec    = R("az","AZ")^1 * colon
-local anchors      = fwslash + drivespec
-local untouched    = periods + (1-period)^1 * P(-1)
-local splitstarter = (Cs(drivespec * (bwslash/"/" + fwslash)^0) + Cc(false)) * Ct(lpeg.splitat(S("/\\")^1))
-local absolute     = fwslash
-
+      return "/"..two
+    end
+  elseif one=="" then
+    return lpegmatch(stripper,concat(lst,"/",2))
+  else
+    return lpegmatch(deslasher,concat(lst,"/"))
+  end
+end
+local drivespec=R("az","AZ")^1*colon
+local anchors=fwslash+drivespec
+local untouched=periods+(1-period)^1*P(-1)
+local splitstarter=(Cs(drivespec*(bwslash/"/"+fwslash)^0)+Cc(false))*Ct(lpeg.splitat(S("/\\")^1))
+local absolute=fwslash
 function file.collapsepath(str,anchor)
-    if not str then
-        return
-    end
-    if anchor and not lpegmatch(anchors,str) then
-        str = getcurrentdir() .. "/" .. str
-    end
-    if str == "" or str =="." then
-        return "."
-    elseif lpegmatch(untouched,str) then
-        return lpegmatch(reslasher,str)
-    end
-    local starter, oldelements = lpegmatch(splitstarter,str)
-    local newelements = { }
-    local i = #oldelements
-    while i > 0 do
-        local element = oldelements[i]
-        if element == '.' then
-            -- do nothing
-        elseif element == '..' then
-            local n = i - 1
-            while n > 0 do
-                local element = oldelements[n]
-                if element ~= '..' and element ~= '.' then
-                    oldelements[n] = '.'
-                    break
-                else
-                    n = n - 1
-                end
-             end
-            if n < 1 then
-               insert(newelements,1,'..')
-            end
-        elseif element ~= "" then
-            insert(newelements,1,element)
-        end
-        i = i - 1
-    end
-    if #newelements == 0 then
-        return starter or "."
-    elseif starter then
-        return starter .. concat(newelements, '/')
-    elseif lpegmatch(absolute,str) then
-        return "/" .. concat(newelements,'/')
-    else
-        return concat(newelements, '/')
-    end
-end
-
--- local function test(str)
---    print(string.format("%-20s %-15s %-15s",str,file.collapsepath(str),file.collapsepath(str,true)))
--- end
--- test("a/b.c/d") test("b.c/d") test("b.c/..")
--- test("/") test("c:/..") test("sys://..")
--- test("") test("./") test(".") test("..") test("./..") test("../..")
--- test("a") test("./a") test("/a") test("a/../..")
--- test("a/./b/..") test("a/aa/../b/bb") test("a/.././././b/..") test("a/./././b/..")
--- test("a/b/c/../..") test("./a/b/c/../..") test("a/b/c/../..")
-
-local validchars = R("az","09","AZ","--","..")
-local pattern_a  = lpeg.replacer(1-validchars)
-local pattern_a  = Cs((validchars + P(1)/"-")^1)
-local whatever   = P("-")^0 / ""
-local pattern_b  = Cs(whatever * (1 - whatever * -1)^1)
-
-function file.robustname(str,strict)
-    if str then
-        str = lpegmatch(pattern_a,str) or str
-        if strict then
-            return lpegmatch(pattern_b,str) or str -- two step is cleaner (less backtracking)
+  if not str then
+    return
+  end
+  if anchor and not lpegmatch(anchors,str) then
+    str=getcurrentdir().."/"..str
+  end
+  if str=="" or str=="." then
+    return "."
+  elseif lpegmatch(untouched,str) then
+    return lpegmatch(reslasher,str)
+  end
+  local starter,oldelements=lpegmatch(splitstarter,str)
+  local newelements={}
+  local i=#oldelements
+  while i>0 do
+    local element=oldelements[i]
+    if element=='.' then
+    elseif element=='..' then
+      local n=i-1
+      while n>0 do
+        local element=oldelements[n]
+        if element~='..' and element~='.' then
+          oldelements[n]='.'
+          break
         else
-            return str
-        end
+          n=n-1
+        end
+       end
+      if n<1 then
+        insert(newelements,1,'..')
+      end
+    elseif element~="" then
+      insert(newelements,1,element)
+    end
+    i=i-1
+  end
+  if #newelements==0 then
+    return starter or "."
+  elseif starter then
+    return starter..concat(newelements,'/')
+  elseif lpegmatch(absolute,str) then
+    return "/"..concat(newelements,'/')
+  else
+    return concat(newelements,'/')
+  end
+end
+local validchars=R("az","09","AZ","--","..")
+local pattern_a=lpeg.replacer(1-validchars)
+local pattern_a=Cs((validchars+P(1)/"-")^1)
+local whatever=P("-")^0/""
+local pattern_b=Cs(whatever*(1-whatever*-1)^1)
+function file.robustname(str,strict)
+  if str then
+    str=lpegmatch(pattern_a,str) or str
+    if strict then
+      return lpegmatch(pattern_b,str) or str 
+    else
+      return str
     end
+  end
 end
-
-file.readdata = io.loaddata
-file.savedata = io.savedata
-
+file.readdata=io.loaddata
+file.savedata=io.savedata
 function file.copy(oldname,newname)
-    if oldname and newname then
-        file.savedata(newname,io.loaddata(oldname))
-    end
-end
-
--- also rewrite previous
-
-local letter    = R("az","AZ") + S("_-+")
-local separator = P("://")
-
-local qualified = period^0 * fwslash
-                + letter   * colon
-                + letter^1 * separator
-                + letter^1 * fwslash
-local rootbased = fwslash
-                + letter * colon
-
-lpeg.patterns.qualified = qualified
-lpeg.patterns.rootbased = rootbased
-
--- ./name ../name  /name c: :// name/name
-
+  if oldname and newname then
+    file.savedata(newname,io.loaddata(oldname))
+  end
+end
+local letter=R("az","AZ")+S("_-+")
+local separator=P("://")
+local qualified=period^0*fwslash+letter*colon+letter^1*separator+letter^1*fwslash
+local rootbased=fwslash+letter*colon
+lpeg.patterns.qualified=qualified
+lpeg.patterns.rootbased=rootbased
 function file.is_qualified_path(filename)
-    return filename and lpegmatch(qualified,filename) ~= nil
+  return filename and lpegmatch(qualified,filename)~=nil
 end
-
 function file.is_rootbased_path(filename)
-    return filename and lpegmatch(rootbased,filename) ~= nil
+  return filename and lpegmatch(rootbased,filename)~=nil
 end
-
--- function test(t) for k, v in next, t do print(v, "=>", file.splitname(v)) end end
---
--- test { "c:", "c:/aa", "c:/aa/bb", "c:/aa/bb/cc", "c:/aa/bb/cc.dd", "c:/aa/bb/cc.dd.ee" }
--- test { "c:", "c:aa", "c:aa/bb", "c:aa/bb/cc", "c:aa/bb/cc.dd", "c:aa/bb/cc.dd.ee" }
--- test { "/aa", "/aa/bb", "/aa/bb/cc", "/aa/bb/cc.dd", "/aa/bb/cc.dd.ee" }
--- test { "aa", "aa/bb", "aa/bb/cc", "aa/bb/cc.dd", "aa/bb/cc.dd.ee" }
-
--- -- maybe:
---
--- if os.type == "windows" then
---     local currentdir = getcurrentdir
---     function getcurrentdir()
---         return lpegmatch(reslasher,currentdir())
---     end
--- end
-
--- for myself:
-
 function file.strip(name,dir)
-    if name then
-        local b, a = match(name,"^(.-)" .. dir .. "(.*)$")
-        return a ~= "" and a or name
-    end
+  if name then
+    local b,a=match(name,"^(.-)"..dir.."(.*)$")
+    return a~="" and a or name
+  end
 end
 
--- local debuglist = {
---     "pathpart", "basename", "nameonly", "suffixonly", "suffix", "dirname", "extname",
---     "addsuffix", "removesuffix", "replacesuffix", "join",
---     "strip","collapsepath", "joinpath", "splitpath",
--- }
-
--- for i=1,#debuglist do
---     local name = debuglist[i]
---     local f = file[name]
---     file[name] = function(...)
---         print(name,f(...))
---         return f(...)
---     end
--- end
-
 end -- closure
 
 do -- begin closure to overcome local limits and interference
 
-if not modules then modules = { } end modules ['l-io'] = {
-    version   = 1.001,
-    comment   = "companion to luat-lib.mkiv",
-    author    = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
-    copyright = "PRAGMA ADE / ConTeXt Development Team",
-    license   = "see context related readme files"
+if not modules then modules={} end modules ['l-boolean']={
+  version=1.001,
+  comment="companion to luat-lib.mkiv",
+  author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+  copyright="PRAGMA ADE / ConTeXt Development Team",
+  license="see context related readme files"
 }
-
-local io = io
-local byte, find, gsub, format = string.byte, string.find, string.gsub, string.format
-local concat = table.concat
-local floor = math.floor
-local type = type
-
-if string.find(os.getenv("PATH"),";") then
-    io.fileseparator, io.pathseparator = "\\", ";"
-else
-    io.fileseparator, io.pathseparator = "/" , ":"
-end
-
-local function readall(f)
-    return f:read("*all")
-end
-
--- The next one is upto 50% faster on large files and less memory consumption due
--- to less intermediate large allocations. This phenomena was discussed on the
--- luatex dev list.
-
-local function readall(f)
-    local size = f:seek("end")
-    if size == 0 then
-        return ""
-    elseif size < 1024*1024 then
-        f:seek("set",0)
-        return f:read('*all')
-    else
-        local done = f:seek("set",0)
-        if size < 1024*1024 then
-            step = 1024 * 1024
-        elseif size > 16*1024*1024 then
-            step = 16*1024*1024
-        else
-            step = floor(size/(1024*1024)) * 1024 * 1024 / 8
-        end
-        local data = { }
-        while true do
-            local r = f:read(step)
-            if not r then
-                return concat(data)
-            else
-                data[#data+1] = r
-            end
-        end
-    end
-end
-
-io.readall = readall
-
-function io.loaddata(filename,textmode) -- return nil if empty
-    local f = io.open(filename,(textmode and 'r') or 'rb')
-    if f then
---       local data = f:read('*all')
-        local data = readall(f)
-        f:close()
-        if #data > 0 then
-            return data
-        end
-    end
-end
-
-function io.savedata(filename,data,joiner)
-    local f = io.open(filename,"wb")
-    if f then
-        if type(data) == "table" then
-            f:write(concat(data,joiner or ""))
-        elseif type(data) == "function" then
-            data(f)
-        else
-            f:write(data or "")
-        end
-        f:close()
-        io.flush()
-        return true
-    else
-        return false
-    end
+local type,tonumber=type,tonumber
+boolean=boolean or {}
+local boolean=boolean
+function boolean.tonumber(b)
+  if b then return 1 else return 0 end 
 end
-
--- we can also chunk this one if needed: io.lines(filename,chunksize,"*l")
-
-function io.loadlines(filename,n) -- return nil if empty
-    local f = io.open(filename,'r')
-    if not f then
-        -- no file
-    elseif n then
-        local lines = { }
-        for i=1,n do
-            local line = f:read("*lines")
-            if line then
-                lines[#lines+1] = line
-            else
-                break
-            end
-        end
-        f:close()
-        lines = concat(lines,"\n")
-        if #lines > 0 then
-            return lines
-        end
-    else
-        local line = f:read("*line") or ""
-        f:close()
-        if #line > 0 then
-            return line
-        end
-    end
+function toboolean(str,tolerant)
+  if str==nil then
+    return false
+  elseif str==false then
+    return false
+  elseif str==true then
+    return true
+  elseif str=="true" then
+    return true
+  elseif str=="false" then
+    return false
+  elseif not tolerant then
+    return false
+  elseif str==0 then
+    return false
+  elseif (tonumber(str) or 0)>0 then
+    return true
+  else
+    return str=="yes" or str=="on" or str=="t"
+  end
 end
-
-function io.loadchunk(filename,n)
-    local f = io.open(filename,'rb')
-    if f then
-        local data = f:read(n or 1024)
-        f:close()
-        if #data > 0 then
-            return data
-        end
-    end
+string.toboolean=toboolean
+function string.booleanstring(str)
+  if str==nil then
+    return false
+  elseif str==false then
+    return false
+  elseif str==true then
+    return true
+  elseif str=="true" then
+    return true
+  elseif str=="false" then
+    return false
+  elseif str==0 then
+    return false
+  elseif (tonumber(str) or 0)>0 then
+    return true
+  else
+    return str=="yes" or str=="on" or str=="t"
+  end
 end
-
-function io.exists(filename)
-    local f = io.open(filename)
-    if f == nil then
-        return false
-    else
-        f:close()
-        return true
+function string.is_boolean(str,default)
+  if type(str)=="string" then
+    if str=="true" or str=="yes" or str=="on" or str=="t" then
+      return true
+    elseif str=="false" or str=="no" or str=="off" or str=="f" then
+      return false
     end
+  end
+  return default
 end
 
-function io.size(filename)
-    local f = io.open(filename)
-    if f == nil then
-        return 0
-    else
-        local s = f:seek("end")
-        f:close()
-        return s
-    end
-end
+end -- closure
 
-function io.noflines(f)
-    if type(f) == "string" then
-        local f = io.open(filename)
-        if f then
-            local n = f and io.noflines(f) or 0
-            f:close()
-            return n
-        else
-            return 0
-        end
-    else
-        local n = 0
-        for _ in f:lines() do
-            n = n + 1
-        end
-        f:seek('set',0)
-        return n
-    end
-end
+do -- begin closure to overcome local limits and interference
 
-local nextchar = {
-    [ 4] = function(f)
-        return f:read(1,1,1,1)
-    end,
-    [ 2] = function(f)
-        return f:read(1,1)
-    end,
-    [ 1] = function(f)
-        return f:read(1)
-    end,
-    [-2] = function(f)
-        local a, b = f:read(1,1)
-        return b, a
-    end,
-    [-4] = function(f)
-        local a, b, c, d = f:read(1,1,1,1)
-        return d, c, b, a
-    end
+if not modules then modules={} end modules ['l-math']={
+  version=1.001,
+  comment="companion to luat-lib.mkiv",
+  author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+  copyright="PRAGMA ADE / ConTeXt Development Team",
+  license="see context related readme files"
 }
-
-function io.characters(f,n)
-    if f then
-        return nextchar[n or 1], f
-    end
+local floor,sin,cos,tan=math.floor,math.sin,math.cos,math.tan
+if not math.round then
+  function math.round(x) return floor(x+0.5) end
 end
-
-local nextbyte = {
-    [4] = function(f)
-        local a, b, c, d = f:read(1,1,1,1)
-        if d then
-            return byte(a), byte(b), byte(c), byte(d)
-        end
-    end,
-    [3] = function(f)
-        local a, b, c = f:read(1,1,1)
-        if b then
-            return byte(a), byte(b), byte(c)
-        end
-    end,
-    [2] = function(f)
-        local a, b = f:read(1,1)
-        if b then
-            return byte(a), byte(b)
-        end
-    end,
-    [1] = function (f)
-        local a = f:read(1)
-        if a then
-            return byte(a)
-        end
-    end,
-    [-2] = function (f)
-        local a, b = f:read(1,1)
-        if b then
-            return byte(b), byte(a)
-        end
-    end,
-    [-3] = function(f)
-        local a, b, c = f:read(1,1,1)
-        if b then
-            return byte(c), byte(b), byte(a)
-        end
-    end,
-    [-4] = function(f)
-        local a, b, c, d = f:read(1,1,1,1)
-        if d then
-            return byte(d), byte(c), byte(b), byte(a)
-        end
-    end
-}
-
-function io.bytes(f,n)
-    if f then
-        return nextbyte[n or 1], f
-    else
-        return nil, nil
-    end
+if not math.div then
+  function math.div(n,m) return floor(n/m) end
 end
-
-function io.ask(question,default,options)
-    while true do
-        io.write(question)
-        if options then
-            io.write(format(" [%s]",concat(options,"|")))
-        end
-        if default then
-            io.write(format(" [%s]",default))
-        end
-        io.write(format(" "))
-        io.flush()
-        local answer = io.read()
-        answer = gsub(answer,"^%s*(.*)%s*$","%1")
-        if answer == "" and default then
-            return default
-        elseif not options then
-            return answer
-        else
-            for k=1,#options do
-                if options[k] == answer then
-                    return answer
-                end
-            end
-            local pattern = "^" .. answer
-            for k=1,#options do
-                local v = options[k]
-                if find(v,pattern) then
-                    return v
-                end
-            end
-        end
-    end
+if not math.mod then
+  function math.mod(n,m) return n%m end
 end
-
-local function readnumber(f,n,m)
-    if m then
-        f:seek("set",n)
-        n = m
-    end
-    if n == 1 then
-        return byte(f:read(1))
-    elseif n == 2 then
-        local a, b = byte(f:read(2),1,2)
-        return 256 * a + b
-    elseif n == 3 then
-        local a, b, c = byte(f:read(3),1,3)
-        return 256*256 * a + 256 * b + c
-    elseif n == 4 then
-        local a, b, c, d = byte(f:read(4),1,4)
-        return 256*256*256 * a + 256*256 * b + 256 * c + d
-    elseif n == 8 then
-        local a, b = readnumber(f,4), readnumber(f,4)
-        return 256 * a + b
-    elseif n == 12 then
-        local a, b, c = readnumber(f,4), readnumber(f,4), readnumber(f,4)
-        return 256*256 * a + 256 * b + c
-    elseif n == -2 then
-        local b, a = byte(f:read(2),1,2)
-        return 256*a + b
-    elseif n == -3 then
-        local c, b, a = byte(f:read(3),1,3)
-        return 256*256 * a + 256 * b + c
-    elseif n == -4 then
-        local d, c, b, a = byte(f:read(4),1,4)
-        return 256*256*256 * a + 256*256 * b + 256*c + d
-    elseif n == -8 then
-        local h, g, f, e, d, c, b, a = byte(f:read(8),1,8)
-        return 256*256*256*256*256*256*256 * a +
-                   256*256*256*256*256*256 * b +
-                       256*256*256*256*256 * c +
-                           256*256*256*256 * d +
-                               256*256*256 * e +
-                                   256*256 * f +
-                                       256 * g +
-                                             h
-    else
-        return 0
-    end
+local pipi=2*math.pi/360
+if not math.sind then
+  function math.sind(d) return sin(d*pipi) end
+  function math.cosd(d) return cos(d*pipi) end
+  function math.tand(d) return tan(d*pipi) end
 end
-
-io.readnumber = readnumber
-
-function io.readstring(f,n,m)
-    if m then
-        f:seek("set",n)
-        n = m
-    end
-    local str = gsub(f:read(n),"\000","")
-    return str
+if not math.odd then
+  function math.odd (n) return n%2~=0 end
+  function math.even(n) return n%2==0 end
 end
 
---
-
-if not io.i_limiter then function io.i_limiter() end end -- dummy so we can test safely
-if not io.o_limiter then function io.o_limiter() end end -- dummy so we can test safely
-
--- This works quite ok:
---
--- function io.piped(command,writer)
---     local pipe = io.popen(command)
---  -- for line in pipe:lines() do
---  --     print(line)
---  -- end
---     while true do
---         local line = pipe:read(1)
---         if not line then
---             break
---         elseif line ~= "\n" then
---             writer(line)
---         end
---     end
---     return pipe:close() -- ok, status, (error)code
--- end
-
 end -- closure
 
 do -- begin closure to overcome local limits and interference
 
-if not modules then modules = { } end modules ['luat-basics-gen'] = {
-    version   = 1.100,
-    comment   = "companion to luatex-*.tex",
-    author    = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
-    copyright = "PRAGMA ADE / ConTeXt Development Team",
-    license   = "see context related readme files"
+if not modules then modules={} end modules ['luat-basics-gen']={
+  version=1.100,
+  comment="companion to luatex-*.tex",
+  author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+  copyright="PRAGMA ADE / ConTeXt Development Team",
+  license="see context related readme files"
 }
-
 if context then
-    texio.write_nl("fatal error: this module is not for context")
-    os.exit()
-end
-
-local dummyfunction = function() end
-local dummyreporter = function(c) return function(...) texio.write(c .. " : " .. string.format(...)) end end
-
-statistics = {
-    register      = dummyfunction,
-    starttiming   = dummyfunction,
-    stoptiming    = dummyfunction,
-    elapsedtime   = nil,
+  texio.write_nl("fatal error: this module is not for context")
+  os.exit()
+end
+local dummyfunction=function() end
+local dummyreporter=function(c) return function(...) texio.write(c.." : "..string.format(...)) end end
+statistics={
+  register=dummyfunction,
+  starttiming=dummyfunction,
+  stoptiming=dummyfunction,
+  elapsedtime=nil,
 }
-
-directives = {
-    register      = dummyfunction,
-    enable        = dummyfunction,
-    disable       = dummyfunction,
+directives={
+  register=dummyfunction,
+  enable=dummyfunction,
+  disable=dummyfunction,
 }
-
-trackers = {
-    register      = dummyfunction,
-    enable        = dummyfunction,
-    disable       = dummyfunction,
+trackers={
+  register=dummyfunction,
+  enable=dummyfunction,
+  disable=dummyfunction,
 }
-
-experiments = {
-    register      = dummyfunction,
-    enable        = dummyfunction,
-    disable       = dummyfunction,
+experiments={
+  register=dummyfunction,
+  enable=dummyfunction,
+  disable=dummyfunction,
 }
-
-storage = { -- probably no longer needed
-    register      = dummyfunction,
-    shared        = { },
+storage={ 
+  register=dummyfunction,
+  shared={},
 }
-
-logs = {
-    new           = dummyreporter,
-    reporter      = dummyreporter,
-    messenger     = dummyreporter,
-    report        = dummyfunction,
+logs={
+  new=dummyreporter,
+  reporter=dummyreporter,
+  messenger=dummyreporter,
+  report=dummyfunction,
 }
-
-callbacks = {
-    register = function(n,f) return callback.register(n,f) end,
-
+callbacks={
+  register=function(n,f) return callback.register(n,f) end,
 }
-
-utilities = {
-    storage = {
-        allocate = function(t) return t or { } end,
-        mark     = function(t) return t or { } end,
-    },
+utilities={
+  storage={
+    allocate=function(t) return t or {} end,
+    mark=function(t) return t or {} end,
+  },
 }
-
-characters = characters or {
-    data = { }
+characters=characters or {
+  data={}
 }
-
--- we need to cheat a bit here
-
-texconfig.kpse_init = true
-
-resolvers = resolvers or { } -- no fancy file helpers used
-
-local remapper = {
-    otf    = "opentype fonts",
-    ttf    = "truetype fonts",
-    ttc    = "truetype fonts",
-    dfont  = "truetype fonts", -- "truetype dictionary",
-    cid    = "cid maps",
-    cidmap = "cid maps",
-    fea    = "font feature files",
-    pfa    = "type1 fonts", -- this is for Khaled, in ConTeXt we don't use this!
-    pfb    = "type1 fonts", -- this is for Khaled, in ConTeXt we don't use this!
+texconfig.kpse_init=true
+resolvers=resolvers or {} 
+local remapper={
+  otf="opentype fonts",
+  ttf="truetype fonts",
+  ttc="truetype fonts",
+  dfont="truetype fonts",
+  cid="cid maps",
+  cidmap="cid maps",
+  fea="font feature files",
+  pfa="type1 fonts",
+  pfb="type1 fonts",
 }
-
 function resolvers.findfile(name,fileformat)
-    name = string.gsub(name,"\\","/")
-    if not fileformat or fileformat == "" then
-        fileformat = file.suffix(name)
-        if fileformat == "" then
-            fileformat = "tex"
-        end
-    end
-    fileformat = string.lower(fileformat)
-    fileformat = remapper[fileformat] or fileformat
-    local found = kpse.find_file(name,fileformat)
-    if not found or found == "" then
-        found = kpse.find_file(name,"other text files")
-    end
-    return found
-end
-
--- function resolvers.findbinfile(name,fileformat)
---     if not fileformat or fileformat == "" then
---         fileformat = file.suffix(name)
---     end
---     return resolvers.findfile(name,(fileformat and remapper[fileformat]) or fileformat)
--- end
-
-resolvers.findbinfile = resolvers.findfile
-
+  name=string.gsub(name,"\\","/")
+  if not fileformat or fileformat=="" then
+    fileformat=file.suffix(name)
+    if fileformat=="" then
+      fileformat="tex"
+    end
+  end
+  fileformat=string.lower(fileformat)
+  fileformat=remapper[fileformat] or fileformat
+  local found=kpse.find_file(name,fileformat)
+  if not found or found=="" then
+    found=kpse.find_file(name,"other text files")
+  end
+  return found
+end
+resolvers.findbinfile=resolvers.findfile
 function resolvers.resolve(s)
-    return s
+  return s
 end
-
 function resolvers.unresolve(s)
-    return s
+  return s
 end
-
--- Caches ... I will make a real stupid version some day when I'm in the
--- mood. After all, the generic code does not need the more advanced
--- ConTeXt features. Cached data is not shared between ConTeXt and other
--- usage as I don't want any dependency at all. Also, ConTeXt might have
--- different needs and tricks added.
-
---~ containers.usecache = true
-
-caches = { }
-
-local writable, readables = nil, { }
-
-if not caches.namespace or caches.namespace == "" or caches.namespace == "context" then
-    caches.namespace = 'generic'
+caches={}
+local writable,readables=nil,{}
+if not caches.namespace or caches.namespace=="" or caches.namespace=="context" then
+  caches.namespace='generic'
 end
-
 do
-
-    local cachepaths = kpse.expand_path('$TEXMFCACHE') or ""
-
-    if cachepaths == "" then
-        cachepaths = kpse.expand_path('$TEXMFVAR')
-    end
-
-    if cachepaths == "" then
-        cachepaths = kpse.expand_path('$VARTEXMF')
-    end
-
-    if cachepaths == "" then
-        cachepaths = "."
-    end
-
-    cachepaths = string.split(cachepaths,os.type == "windows" and ";" or ":")
-
-    for i=1,#cachepaths do
-        if file.is_writable(cachepaths[i]) then
-            writable = file.join(cachepaths[i],"luatex-cache")
-            lfs.mkdir(writable)
-            writable = file.join(writable,caches.namespace)
-            lfs.mkdir(writable)
-            break
-        end
-    end
-
-    for i=1,#cachepaths do
-        if file.is_readable(cachepaths[i]) then
-            readables[#readables+1] = file.join(cachepaths[i],"luatex-cache",caches.namespace)
-        end
-    end
-
-    if not writable then
-        texio.write_nl("quiting: fix your writable cache path")
-        os.exit()
-    elseif #readables == 0 then
-        texio.write_nl("quiting: fix your readable cache path")
-        os.exit()
-    elseif #readables == 1 and readables[1] == writable then
-        texio.write(string.format("(using cache: %s)",writable))
-    else
-        texio.write(string.format("(using write cache: %s)",writable))
-        texio.write(string.format("(using read cache: %s)",table.concat(readables, " ")))
-    end
-
+  local cachepaths=kpse.expand_path('$TEXMFCACHE') or ""
+  if cachepaths=="" then
+    cachepaths=kpse.expand_path('$TEXMFVAR')
+  end
+  if cachepaths=="" then
+    cachepaths=kpse.expand_path('$VARTEXMF')
+  end
+  if cachepaths=="" then
+    cachepaths="."
+  end
+  cachepaths=string.split(cachepaths,os.type=="windows" and ";" or ":")
+  for i=1,#cachepaths do
+    if file.is_writable(cachepaths[i]) then
+      writable=file.join(cachepaths[i],"luatex-cache")
+      lfs.mkdir(writable)
+      writable=file.join(writable,caches.namespace)
+      lfs.mkdir(writable)
+      break
+    end
+  end
+  for i=1,#cachepaths do
+    if file.is_readable(cachepaths[i]) then
+      readables[#readables+1]=file.join(cachepaths[i],"luatex-cache",caches.namespace)
+    end
+  end
+  if not writable then
+    texio.write_nl("quiting: fix your writable cache path")
+    os.exit()
+  elseif #readables==0 then
+    texio.write_nl("quiting: fix your readable cache path")
+    os.exit()
+  elseif #readables==1 and readables[1]==writable then
+    texio.write(string.format("(using cache: %s)",writable))
+  else
+    texio.write(string.format("(using write cache: %s)",writable))
+    texio.write(string.format("(using read cache: %s)",table.concat(readables," ")))
+  end
 end
-
 function caches.getwritablepath(category,subcategory)
-    local path = file.join(writable,category)
-    lfs.mkdir(path)
-    path = file.join(path,subcategory)
-    lfs.mkdir(path)
-    return path
+  local path=file.join(writable,category)
+  lfs.mkdir(path)
+  path=file.join(path,subcategory)
+  lfs.mkdir(path)
+  return path
 end
-
 function caches.getreadablepaths(category,subcategory)
-    local t = { }
-    for i=1,#readables do
-        t[i] = file.join(readables[i],category,subcategory)
-    end
-    return t
+  local t={}
+  for i=1,#readables do
+    t[i]=file.join(readables[i],category,subcategory)
+  end
+  return t
 end
-
 local function makefullname(path,name)
-    if path and path ~= "" then
-        name = "temp-" .. name -- clash prevention
-        return file.addsuffix(file.join(path,name),"lua"), file.addsuffix(file.join(path,name),"luc")
-    end
+  if path and path~="" then
+    name="temp-"..name 
+    return file.addsuffix(file.join(path,name),"lua"),file.addsuffix(file.join(path,name),"luc")
+  end
 end
-
 function caches.is_writable(path,name)
-    local fullname = makefullname(path,name)
-    return fullname and file.is_writable(fullname)
+  local fullname=makefullname(path,name)
+  return fullname and file.is_writable(fullname)
 end
-
 function caches.loaddata(paths,name)
-    for i=1,#paths do
-        local data = false
-        local luaname, lucname = makefullname(paths[i],name)
-        if lucname and lfs.isfile(lucname) then
-            texio.write(string.format("(load: %s)",lucname))
-            data = loadfile(lucname)
-        end
-        if not data and luaname and lfs.isfile(luaname) then
-            texio.write(string.format("(load: %s)",luaname))
-            data = loadfile(luaname)
-        end
-        return data and data()
+  for i=1,#paths do
+    local data=false
+    local luaname,lucname=makefullname(paths[i],name)
+    if lucname and lfs.isfile(lucname) then
+      texio.write(string.format("(load: %s)",lucname))
+      data=loadfile(lucname)
     end
-end
-
-function caches.savedata(path,name,data)
-    local luaname, lucname = makefullname(path,name)
-    if luaname then
-        texio.write(string.format("(save: %s)",luaname))
-        table.tofile(luaname,data,true,{ reduce = true })
-        if lucname and type(caches.compile) == "function" then
-            os.remove(lucname) -- better be safe
-            texio.write(string.format("(save: %s)",lucname))
-            caches.compile(data,luaname,lucname)
-        end
+    if not data and luaname and lfs.isfile(luaname) then
+      texio.write(string.format("(load: %s)",luaname))
+      data=loadfile(luaname)
     end
+    return data and data()
+  end
 end
-
--- According to KH os.execute is not permitted in plain/latex so there is
--- no reason to use the normal context way. So the method here is slightly
--- different from the one we have in context. We also use different suffixes
--- as we don't want any clashes (sharing cache files is not that handy as
--- context moves on faster.)
---
--- Beware: serialization might fail on large files (so maybe we should pcall
--- this) in which case one should limit the method to luac and enable support
--- for execution.
-
-caches.compilemethod = "luac" -- luac dump both
-
+function caches.savedata(path,name,data)
+  local luaname,lucname=makefullname(path,name)
+  if luaname then
+    texio.write(string.format("(save: %s)",luaname))
+    table.tofile(luaname,data,true,{ reduce=true })
+    if lucname and type(caches.compile)=="function" then
+      os.remove(lucname) 
+      texio.write(string.format("(save: %s)",lucname))
+      caches.compile(data,luaname,lucname)
+    end
+  end
+end
+caches.compilemethod="luac" 
 function caches.compile(data,luaname,lucname)
-    local done = false
-    if caches.compilemethod == "luac" or caches.compilemethod == "both" then
-        local command = "-o " .. string.quoted(lucname) .. " -s " .. string.quoted(luaname)
-        done = os.spawn("texluac " .. command) == 0
-    end
-    if not done and (caches.compilemethod == "dump" or caches.compilemethod == "both") then
-        local d = table.serialize(data,true)
-        if d and d ~= "" then
-            local f = io.open(lucname,'w')
-            if f then
-                local s = loadstring(d)
-                f:write(string.dump(s))
-                f:close()
-            end
-        end
+  local done=false
+  if caches.compilemethod=="luac" or caches.compilemethod=="both" then
+    local command="-o "..string.quoted(lucname).." -s "..string.quoted(luaname)
+    done=os.spawn("texluac "..command)==0
+  end
+  if not done and (caches.compilemethod=="dump" or caches.compilemethod=="both") then
+    local d=table.serialize(data,true)
+    if d and d~="" then
+      local f=io.open(lucname,'w')
+      if f then
+        local s=loadstring(d)
+        f:write(string.dump(s))
+        f:close()
+      end
     end
+  end
 end
-
---
-
 function table.setmetatableindex(t,f)
-    setmetatable(t,{ __index = f })
+  setmetatable(t,{ __index=f })
 end
 
 end -- closure
 
 do -- begin closure to overcome local limits and interference
 
-if not modules then modules = { } end modules ['data-con'] = {
-    version   = 1.100,
-    comment   = "companion to luat-lib.mkiv",
-    author    = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
-    copyright = "PRAGMA ADE / ConTeXt Development Team",
-    license   = "see context related readme files"
+if not modules then modules={} end modules ['data-con']={
+  version=1.100,
+  comment="companion to luat-lib.mkiv",
+  author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+  copyright="PRAGMA ADE / ConTeXt Development Team",
+  license="see context related readme files"
 }
-
-local format, lower, gsub = string.format, string.lower, string.gsub
-
-local trace_cache      = false  trackers.register("resolvers.cache",      function(v) trace_cache      = v end)
-local trace_containers = false  trackers.register("resolvers.containers", function(v) trace_containers = v end)
-local trace_storage    = false  trackers.register("resolvers.storage",    function(v) trace_storage    = v end)
-
---[[ldx--
-<p>Once we found ourselves defining similar cache constructs
-several times, containers were introduced. Containers are used
-to collect tables in memory and reuse them when possible based
-on (unique) hashes (to be provided by the calling function).</p>
-
-<p>Caching to disk is disabled by default. Version numbers are
-stored in the saved table which makes it possible to change the
-table structures without bothering about the disk cache.</p>
-
-<p>Examples of usage can be found in the font related code.</p>
---ldx]]--
-
-containers          = containers or { }
-local containers    = containers
-containers.usecache = true
-
-local report_containers = logs.reporter("resolvers","containers")
-
+local format,lower,gsub=string.format,string.lower,string.gsub
+local trace_cache=false trackers.register("resolvers.cache",function(v) trace_cache=v end)
+local trace_containers=false trackers.register("resolvers.containers",function(v) trace_containers=v end)
+local trace_storage=false trackers.register("resolvers.storage",function(v) trace_storage=v end)
+containers=containers or {}
+local containers=containers
+containers.usecache=true
+local report_containers=logs.reporter("resolvers","containers")
 local function report(container,tag,name)
-    if trace_cache or trace_containers then
-        report_containers("container: %s, tag: %s, name: %s",container.subcategory,tag,name or 'invalid')
-    end
-end
-
-local allocated = { }
-
-local mt = {
-    __index = function(t,k)
-        if k == "writable" then
-            local writable = caches.getwritablepath(t.category,t.subcategory) or { "." }
-            t.writable = writable
-            return writable
-        elseif k == "readables" then
-            local readables = caches.getreadablepaths(t.category,t.subcategory) or { "." }
-            t.readables = readables
-            return readables
-        end
-    end,
-    __storage__ = true
+  if trace_cache or trace_containers then
+    report_containers("container: %s, tag: %s, name: %s",container.subcategory,tag,name or 'invalid')
+  end
+end
+local allocated={}
+local mt={
+  __index=function(t,k)
+    if k=="writable" then
+      local writable=caches.getwritablepath(t.category,t.subcategory) or { "." }
+      t.writable=writable
+      return writable
+    elseif k=="readables" then
+      local readables=caches.getreadablepaths(t.category,t.subcategory) or { "." }
+      t.readables=readables
+      return readables
+    end
+  end,
+  __storage__=true
 }
-
-function containers.define(category, subcategory, version, enabled)
-    if category and subcategory then
-        local c = allocated[category]
-        if not c then
-            c  = { }
-            allocated[category] = c
-        end
-        local s = c[subcategory]
-        if not s then
-            s = {
-                category    = category,
-                subcategory = subcategory,
-                storage     = { },
-                enabled     = enabled,
-                version     = version or math.pi, -- after all, this is TeX
-                trace       = false,
-             -- writable    = caches.getwritablepath  and caches.getwritablepath (category,subcategory) or { "." },
-             -- readables   = caches.getreadablepaths and caches.getreadablepaths(category,subcategory) or { "." },
-            }
-            setmetatable(s,mt)
-            c[subcategory] = s
-        end
-        return s
+function containers.define(category,subcategory,version,enabled)
+  if category and subcategory then
+    local c=allocated[category]
+    if not c then
+      c={}
+      allocated[category]=c
+    end
+    local s=c[subcategory]
+    if not s then
+      s={
+        category=category,
+        subcategory=subcategory,
+        storage={},
+        enabled=enabled,
+        version=version or math.pi,
+        trace=false,
+      }
+      setmetatable(s,mt)
+      c[subcategory]=s
     end
+    return s
+  end
 end
-
-function containers.is_usable(container, name)
-    return container.enabled and caches and caches.is_writable(container.writable, name)
+function containers.is_usable(container,name)
+  return container.enabled and caches and caches.is_writable(container.writable,name)
 end
-
-function containers.is_valid(container, name)
-    if name and name ~= "" then
-        local storage = container.storage[name]
-        return storage and storage.cache_version == container.version
-    else
-        return false
-    end
+function containers.is_valid(container,name)
+  if name and name~="" then
+    local storage=container.storage[name]
+    return storage and storage.cache_version==container.version
+  else
+    return false
+  end
 end
-
 function containers.read(container,name)
-    local storage = container.storage
-    local stored = storage[name]
-    if not stored and container.enabled and caches and containers.usecache then
-        stored = caches.loaddata(container.readables,name)
-        if stored and stored.cache_version == container.version then
-            report(container,"loaded",name)
-        else
-            stored = nil
-        end
-        storage[name] = stored
-    elseif stored then
-        report(container,"reusing",name)
-    end
-    return stored
-end
-
-function containers.write(container, name, data)
-    if data then
-        data.cache_version = container.version
-        if container.enabled and caches then
-            local unique, shared = data.unique, data.shared
-            data.unique, data.shared = nil, nil
-            caches.savedata(container.writable, name, data)
-            report(container,"saved",name)
-            data.unique, data.shared = unique, shared
-        end
-        report(container,"stored",name)
-        container.storage[name] = data
-    end
-    return data
+  local storage=container.storage
+  local stored=storage[name]
+  if not stored and container.enabled and caches and containers.usecache then
+    stored=caches.loaddata(container.readables,name)
+    if stored and stored.cache_version==container.version then
+      report(container,"loaded",name)
+    else
+      stored=nil
+    end
+    storage[name]=stored
+  elseif stored then
+    report(container,"reusing",name)
+  end
+  return stored
+end
+function containers.write(container,name,data)
+  if data then
+    data.cache_version=container.version
+    if container.enabled and caches then
+      local unique,shared=data.unique,data.shared
+      data.unique,data.shared=nil,nil
+      caches.savedata(container.writable,name,data)
+      report(container,"saved",name)
+      data.unique,data.shared=unique,shared
+    end
+    report(container,"stored",name)
+    container.storage[name]=data
+  end
+  return data
 end
-
 function containers.content(container,name)
-    return container.storage[name]
+  return container.storage[name]
 end
-
 function containers.cleanname(name)
-    return (gsub(lower(name),"[^%w%d]+","-"))
+  return (gsub(lower(name),"[^%w%d]+","-"))
 end
 
 end -- closure
 
 do -- begin closure to overcome local limits and interference
 
-if not modules then modules = { } end modules ['luatex-fonts-nod'] = {
-    version   = 1.001,
-    comment   = "companion to luatex-fonts.lua",
-    author    = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
-    copyright = "PRAGMA ADE / ConTeXt Development Team",
-    license   = "see context related readme files"
+if not modules then modules={} end modules ['luatex-fonts-nod']={
+  version=1.001,
+  comment="companion to luatex-fonts.lua",
+  author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+  copyright="PRAGMA ADE / ConTeXt Development Team",
+  license="see context related readme files"
 }
-
 if context then
-    texio.write_nl("fatal error: this module is not for context")
-    os.exit()
-end
-
--- Don't depend on code here as it is only needed to complement the
--- font handler code.
-
--- Attributes:
-
-if tex.attribute[0] ~= 0 then
-
-    texio.write_nl("log","!")
-    texio.write_nl("log","! Attribute 0 is reserved for ConTeXt's font feature management and has to be")
-    texio.write_nl("log","! set to zero. Also, some attributes in the range 1-255 are used for special")
-    texio.write_nl("log","! purposes so setting them at the TeX end might break the font handler.")
-    texio.write_nl("log","!")
-
-    tex.attribute[0] = 0 -- else no features
-
-end
-
-attributes            = { }
-attributes.unsetvalue = -0x7FFFFFFF
-
-local numbers, last = { }, 127
-
+  texio.write_nl("fatal error: this module is not for context")
+  os.exit()
+end
+if tex.attribute[0]~=0 then
+  texio.write_nl("log","!")
+  texio.write_nl("log","! Attribute 0 is reserved for ConTeXt's font feature management and has to be")
+  texio.write_nl("log","! set to zero. Also, some attributes in the range 1-255 are used for special")
+  texio.write_nl("log","! purposes so setting them at the TeX end might break the font handler.")
+  texio.write_nl("log","!")
+  tex.attribute[0]=0 
+end
+attributes={}
+attributes.unsetvalue=-0x7FFFFFFF
+local numbers,last={},127
 function attributes.private(name)
-    local number = numbers[name]
-    if not number then
-        if last < 255 then
-            last = last + 1
-        end
-        number = last
-        numbers[name] = number
+  local number=numbers[name]
+  if not number then
+    if last<255 then
+      last=last+1
+    end
+    number=last
+    numbers[name]=number
+  end
+  return number
+end
+nodes={}
+nodes.pool={}
+nodes.handlers={}
+local nodecodes={} for k,v in next,node.types  () do nodecodes[string.gsub(v,"_","")]=k end
+local whatcodes={} for k,v in next,node.whatsits() do whatcodes[string.gsub(v,"_","")]=k end
+local glyphcodes={ [0]="character","glyph","ligature","ghost","left","right" }
+nodes.nodecodes=nodecodes
+nodes.whatcodes=whatcodes
+nodes.whatsitcodes=whatcodes
+nodes.glyphcodes=glyphcodes
+local free_node=node.free
+local remove_node=node.remove
+local new_node=node.new
+local traverse_id=node.traverse_id
+local math_code=nodecodes.math
+nodes.handlers.protectglyphs=node.protect_glyphs
+nodes.handlers.unprotectglyphs=node.unprotect_glyphs
+function nodes.remove(head,current,free_too)
+  local t=current
+  head,current=remove_node(head,current)
+  if t then
+    if free_too then
+      free_node(t)
+      t=nil
+    else
+      t.next,t.prev=nil,nil
     end
-    return number
-end
-
--- Nodes:
-
-nodes              = { }
-nodes.pool         = { }
-nodes.handlers     = { }
-
-local nodecodes    = { } for k,v in next, node.types   () do nodecodes[string.gsub(v,"_","")] = k end
-local whatcodes    = { } for k,v in next, node.whatsits() do whatcodes[string.gsub(v,"_","")] = k end
-local glyphcodes   = { [0] = "character", "glyph", "ligature", "ghost", "left", "right" }
-
-nodes.nodecodes    = nodecodes
-nodes.whatcodes    = whatcodes
-nodes.whatsitcodes = whatcodes
-nodes.glyphcodes   = glyphcodes
-
-local free_node    = node.free
-local remove_node  = node.remove
-local new_node     = node.new
-
-nodes.handlers.protectglyphs   = node.protect_glyphs
-nodes.handlers.unprotectglyphs = node.unprotect_glyphs
-
-function nodes.remove(head, current, free_too)
-   local t = current
-   head, current = remove_node(head,current)
-   if t then
-        if free_too then
-            free_node(t)
-            t = nil
-        else
-            t.next, t.prev = nil, nil
-        end
-   end
-   return head, current, t
+  end
+  return head,current,t
 end
-
 function nodes.delete(head,current)
-    return nodes.remove(head,current,true)
+  return nodes.remove(head,current,true)
 end
-
-nodes.before = node.insert_before
-nodes.after  = node.insert_after
-
+nodes.before=node.insert_before
+nodes.after=node.insert_after
 function nodes.pool.kern(k)
-    local n = new_node("kern",1)
-    n.kern = k
+  local n=new_node("kern",1)
+  n.kern=k
+  return n
+end
+function nodes.endofmath(n)
+  for n in traverse_id(math_code,n.next) do
     return n
+  end
 end
 
 end -- closure
 
 do -- begin closure to overcome local limits and interference
 
-if not modules then modules = { } end modules ['font-ini'] = {
-    version   = 1.001,
-    comment   = "companion to font-ini.mkiv",
-    author    = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
-    copyright = "PRAGMA ADE / ConTeXt Development Team",
-    license   = "see context related readme files"
+if not modules then modules={} end modules ['font-ini']={
+  version=1.001,
+  comment="companion to font-ini.mkiv",
+  author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+  copyright="PRAGMA ADE / ConTeXt Development Team",
+  license="see context related readme files"
 }
-
---[[ldx--
-<p>Not much is happening here.</p>
---ldx]]--
-
-local allocate = utilities.storage.allocate
-
-local report_defining = logs.reporter("fonts","defining")
-
-fonts               = fonts or { }
-local fonts         = fonts
-
-fonts.hashes        = { identifiers = allocate() }
-
-fonts.tables        = fonts.tables     or { }
-fonts.helpers       = fonts.helpers    or { }
-fonts.tracers       = fonts.tracers    or { } -- for the moment till we have move to moduledata
-fonts.specifiers    = fonts.specifiers or { } -- in format !
-
-fonts.analyzers     = { } -- not needed here
-fonts.readers       = { }
-fonts.definers      = { methods = { } }
-fonts.loggers       = { register = function() end }
-
-fontloader.totable  = fontloader.to_table
+local allocate=utilities.storage.allocate
+local report_defining=logs.reporter("fonts","defining")
+fonts=fonts or {}
+local fonts=fonts
+fonts.hashes={ identifiers=allocate() }
+fonts.tables=fonts.tables   or {}
+fonts.helpers=fonts.helpers  or {}
+fonts.tracers=fonts.tracers  or {} 
+fonts.specifiers=fonts.specifiers or {} 
+fonts.analyzers={} 
+fonts.readers={}
+fonts.definers={ methods={} }
+fonts.loggers={ register=function() end }
+fontloader.totable=fontloader.to_table
 
 end -- closure
 
 do -- begin closure to overcome local limits and interference
 
-if not modules then modules = { } end modules ['font-con'] = {
-    version   = 1.001,
-    comment   = "companion to font-ini.mkiv",
-    author    = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
-    copyright = "PRAGMA ADE / ConTeXt Development Team",
-    license   = "see context related readme files"
+if not modules then modules={} end modules ['font-con']={
+  version=1.001,
+  comment="companion to font-ini.mkiv",
+  author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+  copyright="PRAGMA ADE / ConTeXt Development Team",
+  license="see context related readme files"
 }
-
--- some names of table entries will be changed (no _)
-
-local next, tostring, rawget = next, tostring, rawget
-local format, match, lower, gsub = string.format, string.match, string.lower, string.gsub
-local utfbyte = utf.byte
-local sort, insert, concat, sortedkeys, serialize, fastcopy = table.sort, table.insert, table.concat, table.sortedkeys, table.serialize, table.fastcopy
-local derivetable = table.derive
-
-local trace_defining = false  trackers.register("fonts.defining", function(v) trace_defining = v end)
-local trace_scaling  = false  trackers.register("fonts.scaling" , function(v) trace_scaling  = v end)
-
-local report_defining = logs.reporter("fonts","defining")
-
--- watch out: no negative depths and negative eights permitted in regular fonts
-
---[[ldx--
-<p>Here we only implement a few helper functions.</p>
---ldx]]--
-
-local fonts                  = fonts
-local constructors           = fonts.constructors or { }
-fonts.constructors           = constructors
-local handlers               = fonts.handlers or { } -- can have preloaded tables
-fonts.handlers               = handlers
-
-local specifiers             = fonts.specifiers
-local contextsetups          = specifiers.contextsetups
-local contextnumbers         = specifiers.contextnumbers
-
-local allocate               = utilities.storage.allocate
-local setmetatableindex      = table.setmetatableindex
-
--- will be directives
-
-constructors.dontembed       = allocate()
-constructors.autocleanup     = true
-constructors.namemode        = "fullpath" -- will be a function
-
-constructors.version         = 1.01
-constructors.cache           = containers.define("fonts", "constructors", constructors.version, false)
-
-constructors.privateoffset   = 0xF0000 -- 0x10FFFF
-
--- Some experimental helpers (handy for tracing):
---
--- todo: extra:
---
--- extra_space       => space.extra
--- space             => space.width
--- space_stretch     => space.stretch
--- space_shrink      => space.shrink
-
--- We do keep the x-height, extra_space, space_shrink and space_stretch
--- around as these are low level official names.
-
-constructors.keys = {
-    properties = {
-        encodingbytes          = "number",
-        embedding              = "number",
-        cidinfo                = {
-                                 },
-        format                 = "string",
-        fontname               = "string",
-        fullname               = "string",
-        filename               = "filename",
-        psname                 = "string",
-        name                   = "string",
-        virtualized            = "boolean",
-        hasitalics             = "boolean",
-        autoitalicamount       = "basepoints",
-        nostackmath            = "boolean",
-        noglyphnames           = "boolean",
-        mode                   = "string",
-        hasmath                = "boolean",
-        mathitalics            = "boolean",
-        textitalics            = "boolean",
-        finalized              = "boolean",
-    },
-    parameters = {
-        mathsize               = "number",
-        scriptpercentage       = "float",
-        scriptscriptpercentage = "float",
-        units                  = "cardinal",
-        designsize             = "scaledpoints",
-        expansion              = {
-                                    stretch = "integerscale", -- might become float
-                                    shrink  = "integerscale", -- might become float
-                                    step    = "integerscale", -- might become float
-                                    auto    = "boolean",
-                                 },
-        protrusion             = {
-                                    auto    = "boolean",
-                                 },
-        slantfactor            = "float",
-        extendfactor           = "float",
-        factor                 = "float",
-        hfactor                = "float",
-        vfactor                = "float",
-        size                   = "scaledpoints",
-        units                  = "scaledpoints",
-        scaledpoints           = "scaledpoints",
-        slantperpoint          = "scaledpoints",
-        spacing                = {
-                                    width   = "scaledpoints",
-                                    stretch = "scaledpoints",
-                                    shrink  = "scaledpoints",
-                                    extra   = "scaledpoints",
-                                 },
-        xheight                = "scaledpoints",
-        quad                   = "scaledpoints",
-        ascender               = "scaledpoints",
-        descender              = "scaledpoints",
-        synonyms               = {
-                                    space         = "spacing.width",
-                                    spacestretch  = "spacing.stretch",
-                                    spaceshrink   = "spacing.shrink",
-                                    extraspace    = "spacing.extra",
-                                    x_height      = "xheight",
-                                    space_stretch = "spacing.stretch",
-                                    space_shrink  = "spacing.shrink",
-                                    extra_space   = "spacing.extra",
-                                    em            = "quad",
-                                    ex            = "xheight",
-                                    slant         = "slantperpoint",
-                                  },
-    },
-    description = {
-        width                  = "basepoints",
-        height                 = "basepoints",
-        depth                  = "basepoints",
-        boundingbox            = { },
-    },
-    character = {
-        width                  = "scaledpoints",
-        height                 = "scaledpoints",
-        depth                  = "scaledpoints",
-        italic                 = "scaledpoints",
-    },
+local next,tostring,rawget=next,tostring,rawget
+local format,match,lower,gsub=string.format,string.match,string.lower,string.gsub
+local utfbyte=utf.byte
+local sort,insert,concat,sortedkeys,serialize,fastcopy=table.sort,table.insert,table.concat,table.sortedkeys,table.serialize,table.fastcopy
+local derivetable=table.derive
+local trace_defining=false trackers.register("fonts.defining",function(v) trace_defining=v end)
+local trace_scaling=false trackers.register("fonts.scaling",function(v) trace_scaling=v end)
+local report_defining=logs.reporter("fonts","defining")
+local fonts=fonts
+local constructors=fonts.constructors or {}
+fonts.constructors=constructors
+local handlers=fonts.handlers or {} 
+fonts.handlers=handlers
+local specifiers=fonts.specifiers
+local contextsetups=specifiers.contextsetups
+local contextnumbers=specifiers.contextnumbers
+local allocate=utilities.storage.allocate
+local setmetatableindex=table.setmetatableindex
+constructors.dontembed=allocate()
+constructors.autocleanup=true
+constructors.namemode="fullpath" 
+constructors.version=1.01
+constructors.cache=containers.define("fonts","constructors",constructors.version,false)
+constructors.privateoffset=0xF0000
+constructors.keys={
+  properties={
+    encodingbytes="number",
+    embedding="number",
+    cidinfo={},
+    format="string",
+    fontname="string",
+    fullname="string",
+    filename="filename",
+    psname="string",
+    name="string",
+    virtualized="boolean",
+    hasitalics="boolean",
+    autoitalicamount="basepoints",
+    nostackmath="boolean",
+    noglyphnames="boolean",
+    mode="string",
+    hasmath="boolean",
+    mathitalics="boolean",
+    textitalics="boolean",
+    finalized="boolean",
+  },
+  parameters={
+    mathsize="number",
+    scriptpercentage="float",
+    scriptscriptpercentage="float",
+    units="cardinal",
+    designsize="scaledpoints",
+    expansion={
+                  stretch="integerscale",
+                  shrink="integerscale",
+                  step="integerscale",
+                  auto="boolean",
+                 },
+    protrusion={
+                  auto="boolean",
+                 },
+    slantfactor="float",
+    extendfactor="float",
+    factor="float",
+    hfactor="float",
+    vfactor="float",
+    size="scaledpoints",
+    units="scaledpoints",
+    scaledpoints="scaledpoints",
+    slantperpoint="scaledpoints",
+    spacing={
+                  width="scaledpoints",
+                  stretch="scaledpoints",
+                  shrink="scaledpoints",
+                  extra="scaledpoints",
+                 },
+    xheight="scaledpoints",
+    quad="scaledpoints",
+    ascender="scaledpoints",
+    descender="scaledpoints",
+    synonyms={
+                  space="spacing.width",
+                  spacestretch="spacing.stretch",
+                  spaceshrink="spacing.shrink",
+                  extraspace="spacing.extra",
+                  x_height="xheight",
+                  space_stretch="spacing.stretch",
+                  space_shrink="spacing.shrink",
+                  extra_space="spacing.extra",
+                  em="quad",
+                  ex="xheight",
+                  slant="slantperpoint",
+                 },
+  },
+  description={
+    width="basepoints",
+    height="basepoints",
+    depth="basepoints",
+    boundingbox={},
+  },
+  character={
+    width="scaledpoints",
+    height="scaledpoints",
+    depth="scaledpoints",
+    italic="scaledpoints",
+  },
 }
-
--- This might become an interface:
-
-local designsizes           = allocate()
-constructors.designsizes    = designsizes
-local loadedfonts           = allocate()
-constructors.loadedfonts    = loadedfonts
-
---[[ldx--
-<p>We need to normalize the scale factor (in scaled points). This has to
-do with the fact that <l n='tex'/> uses a negative multiple of 1000 as
-a signal for a font scaled based on the design size.</p>
---ldx]]--
-
-local factors = {
-    pt = 65536.0,
-    bp = 65781.8,
+local designsizes=allocate()
+constructors.designsizes=designsizes
+local loadedfonts=allocate()
+constructors.loadedfonts=loadedfonts
+local factors={
+  pt=65536.0,
+  bp=65781.8,
 }
-
 function constructors.setfactor(f)
-    constructors.factor = factors[f or 'pt'] or factors.pt
+  constructors.factor=factors[f or 'pt'] or factors.pt
 end
-
 constructors.setfactor()
-
-function constructors.scaled(scaledpoints, designsize) -- handles designsize in sp as well
-    if scaledpoints < 0 then
-        if designsize then
-            local factor = constructors.factor
-            if designsize > factor then -- or just 1000 / when? mp?
-                return (- scaledpoints/1000) * designsize -- sp's
-            else
-                return (- scaledpoints/1000) * designsize * factor
-            end
-        else
-            return (- scaledpoints/1000) * 10 * factor
-        end
+function constructors.scaled(scaledpoints,designsize) 
+  if scaledpoints<0 then
+    if designsize then
+      local factor=constructors.factor
+      if designsize>factor then 
+        return (- scaledpoints/1000)*designsize 
+      else
+        return (- scaledpoints/1000)*designsize*factor
+      end
     else
-        return scaledpoints
+      return (- scaledpoints/1000)*10*factor
     end
+  else
+    return scaledpoints
+  end
 end
-
---[[ldx--
-<p>Beware, the boundingbox is passed as reference so we may not overwrite it
-in the process; numbers are of course copies. Here 65536 equals 1pt. (Due to
-excessive memory usage in CJK fonts, we no longer pass the boundingbox.)</p>
---ldx]]--
-
--- The scaler is only used for otf and afm and virtual fonts. If
--- a virtual font has italic correction make sure to set the
--- hasitalics flag. Some more flags will be added in
--- the future.
-
---[[ldx--
-<p>The reason why the scaler was originally split, is that for a while we experimented
-with a helper function. However, in practice the <l n='api'/> calls are too slow to
-make this profitable and the <l n='lua'/> based variant was just faster. A days
-wasted day but an experience richer.</p>
---ldx]]--
-
--- we can get rid of the tfm instance when we have fast access to the
--- scaled character dimensions at the tex end, e.g. a fontobject.width
--- actually we already have soem of that now as virtual keys in glyphs
---
--- flushing the kern and ligature tables from memory saves a lot (only
--- base mode) but it complicates vf building where the new characters
--- demand this data .. solution: functions that access them
-
 function constructors.cleanuptable(tfmdata)
-    if constructors.autocleanup and tfmdata.properties.virtualized then
-        for k, v in next, tfmdata.characters do
-            if v.commands then v.commands = nil end
-        --  if v.kerns    then v.kerns    = nil end
-        end
+  if constructors.autocleanup and tfmdata.properties.virtualized then
+    for k,v in next,tfmdata.characters do
+      if v.commands then v.commands=nil end
     end
+  end
 end
-
--- experimental, sharing kerns (unscaled and scaled) saves memory
--- local sharedkerns, basekerns = constructors.check_base_kerns(tfmdata)
--- loop over descriptions (afm and otf have descriptions, tfm not)
--- there is no need (yet) to assign a value to chr.tonunicode
-
--- constructors.prepare_base_kerns(tfmdata) -- optimalization
-
--- we have target.name=metricfile and target.fullname=RealName and target.filename=diskfilename
--- when collapsing fonts, luatex looks as both target.name and target.fullname as ttc files
--- can have multiple subfonts
-
 function constructors.calculatescale(tfmdata,scaledpoints)
-    local parameters = tfmdata.parameters
-    if scaledpoints < 0 then
-        scaledpoints = (- scaledpoints/1000) * (tfmdata.designsize or parameters.designsize) -- already in sp
-    end
-    return scaledpoints, scaledpoints / (parameters.units or 1000) -- delta
-end
-
-local unscaled = {
-    ScriptPercentScaleDown          = true,
-    ScriptScriptPercentScaleDown    = true,
-    RadicalDegreeBottomRaisePercent = true
+  local parameters=tfmdata.parameters
+  if scaledpoints<0 then
+    scaledpoints=(- scaledpoints/1000)*(tfmdata.designsize or parameters.designsize) 
+  end
+  return scaledpoints,scaledpoints/(parameters.units or 1000) 
+end
+local unscaled={
+  ScriptPercentScaleDown=true,
+  ScriptScriptPercentScaleDown=true,
+  RadicalDegreeBottomRaisePercent=true
 }
-
-function constructors.assignmathparameters(target,original) -- simple variant, not used in context
-    -- when a tfm file is loaded, it has already been scaled
-    -- and it never enters the scaled so this is otf only and
-    -- even then we do some extra in the context math plugins
-    local mathparameters = original.mathparameters
-    if mathparameters and next(mathparameters) then
-        local targetparameters     = target.parameters
-        local targetproperties     = target.properties
-        local targetmathparameters = { }
-        local factor               = targetproperties.math_is_scaled and 1 or targetparameters.factor
-        for name, value in next, mathparameters do
-            if unscaled[name] then
-                targetmathparameters[name] = value
-            else
-                targetmathparameters[name] = value * factor
-            end
-        end
-        if not targetmathparameters.FractionDelimiterSize then
-            targetmathparameters.FractionDelimiterSize = 1.01 * targetparameters.size
-        end
-        if not mathparameters.FractionDelimiterDisplayStyleSize then
-            targetmathparameters.FractionDelimiterDisplayStyleSize = 2.40 * targetparameters.size
-        end
-        target.mathparameters = targetmathparameters
-    end
+function constructors.assignmathparameters(target,original)
+  local mathparameters=original.mathparameters
+  if mathparameters and next(mathparameters) then
+    local targetparameters=target.parameters
+    local targetproperties=target.properties
+    local targetmathparameters={}
+    local factor=targetproperties.math_is_scaled and 1 or targetparameters.factor
+    for name,value in next,mathparameters do
+      if unscaled[name] then
+        targetmathparameters[name]=value
+      else
+        targetmathparameters[name]=value*factor
+      end
+    end
+    if not targetmathparameters.FractionDelimiterSize then
+      targetmathparameters.FractionDelimiterSize=1.01*targetparameters.size
+    end
+    if not mathparameters.FractionDelimiterDisplayStyleSize then
+      targetmathparameters.FractionDelimiterDisplayStyleSize=2.40*targetparameters.size
+    end
+    target.mathparameters=targetmathparameters
+  end
 end
-
 function constructors.beforecopyingcharacters(target,original)
-    -- can be used for additional tweaking
 end
-
 function constructors.aftercopyingcharacters(target,original)
-    -- can be used for additional tweaking
 end
-
 function constructors.enhanceparameters(parameters)
-    local xheight = parameters.x_height
-    local quad    = parameters.quad
-    local space   = parameters.space
-    local stretch = parameters.space_stretch
-    local shrink  = parameters.space_shrink
-    local extra   = parameters.extra_space
-    local slant   = parameters.slant
-    parameters.xheight       = xheight
-    parameters.spacestretch  = stretch
-    parameters.spaceshrink   = shrink
-    parameters.extraspace    = extra
-    parameters.em            = quad
-    parameters.ex            = xheight
-    parameters.slantperpoint = slant
-    parameters.spacing = {
-        width   = space,
-        stretch = stretch,
-        shrink  = shrink,
-        extra   = extra,
-    }
+  local xheight=parameters.x_height
+  local quad=parameters.quad
+  local space=parameters.space
+  local stretch=parameters.space_stretch
+  local shrink=parameters.space_shrink
+  local extra=parameters.extra_space
+  local slant=parameters.slant
+  parameters.xheight=xheight
+  parameters.spacestretch=stretch
+  parameters.spaceshrink=shrink
+  parameters.extraspace=extra
+  parameters.em=quad
+  parameters.ex=xheight
+  parameters.slantperpoint=slant
+  parameters.spacing={
+    width=space,
+    stretch=stretch,
+    shrink=shrink,
+    extra=extra,
+  }
 end
-
 function constructors.scale(tfmdata,specification)
-    local target         = { } -- the new table
-    --
-    if tonumber(specification) then
-        specification    = { size = specification }
-    end
-    --
-    local scaledpoints   = specification.size
-    local relativeid     = specification.relativeid
-    --
-    local properties     = tfmdata.properties     or { }
-    local goodies        = tfmdata.goodies        or { }
-    local resources      = tfmdata.resources      or { }
-    local descriptions   = tfmdata.descriptions   or { } -- bad news if empty
-    local characters     = tfmdata.characters     or { } -- bad news if empty
-    local changed        = tfmdata.changed        or { } -- for base mode
-    local shared         = tfmdata.shared         or { }
-    local parameters     = tfmdata.parameters     or { }
-    local mathparameters = tfmdata.mathparameters or { }
-    --
-    local targetcharacters     = { }
-    local targetdescriptions   = derivetable(descriptions)
-    local targetparameters     = derivetable(parameters)
-    local targetproperties     = derivetable(properties)
-    local targetgoodies        = goodies                        -- we need to loop so no metatable
-    target.characters          = targetcharacters
-    target.descriptions        = targetdescriptions
-    target.parameters          = targetparameters
- -- target.mathparameters      = targetmathparameters           -- happens elsewhere
-    target.properties          = targetproperties
-    target.goodies             = targetgoodies
-    target.shared              = shared
-    target.resources           = resources
-    target.unscaled            = tfmdata                        -- the original unscaled one
-    --
-    -- specification.mathsize : 1=text 2=script 3=scriptscript
-    -- specification.textsize : natural (text)size
-    -- parameters.mathsize    : 1=text 2=script 3=scriptscript >1000 enforced size (feature value other than yes)
-    --
-    local mathsize    = tonumber(specification.mathsize) or 0
-    local textsize    = tonumber(specification.textsize) or scaledpoints
-    local forcedsize  = tonumber(parameters.mathsize   ) or 0
-    local extrafactor = tonumber(specification.factor  ) or 1
-    if (mathsize == 2 or forcedsize == 2) and parameters.scriptpercentage then
-        scaledpoints = parameters.scriptpercentage * textsize / 100
-    elseif (mathsize == 3 or forcedsize == 3) and parameters.scriptscriptpercentage then
-        scaledpoints = parameters.scriptscriptpercentage * textsize / 100
-    elseif forcedsize > 1000 then -- safeguard
-        scaledpoints = forcedsize
-    end
-    targetparameters.mathsize    = mathsize    -- context specific
-    targetparameters.textsize    = textsize    -- context specific
-    targetparameters.forcedsize  = forcedsize  -- context specific
-    targetparameters.extrafactor = extrafactor -- context specific
-    --
-    local tounicode     = resources.tounicode
-    local defaultwidth  = resources.defaultwidth  or 0
-    local defaultheight = resources.defaultheight or 0
-    local defaultdepth  = resources.defaultdepth or 0
-    local units         = parameters.units or 1000
-    --
-    if target.fonts then
-        target.fonts = fastcopy(target.fonts) -- maybe we virtualize more afterwards
-    end
-    --
-    -- boundary keys are no longer needed as we now have a string 'right_boundary'
-    -- that can be used in relevant tables (kerns and ligatures) ... not that I ever
-    -- used them
-    --
- -- boundarychar_label = 0,     -- not needed
- -- boundarychar       = 65536, -- there is now a string 'right_boundary'
- -- false_boundarychar = 65536, -- produces invalid tfm in luatex
-    --
-    targetproperties.language = properties.language or "dflt" -- inherited
-    targetproperties.script   = properties.script   or "dflt" -- inherited
-    targetproperties.mode     = properties.mode     or "base" -- inherited
-    --
-    local askedscaledpoints   = scaledpoints
-    local scaledpoints, delta = constructors.calculatescale(tfmdata,scaledpoints) -- no shortcut, dan be redefined
-    --
-    local hdelta         = delta
-    local vdelta         = delta
-    --
-    target.designsize    = parameters.designsize -- not really needed so it muight become obsolete
-    target.units_per_em  = units                 -- just a trigger for the backend (does luatex use this? if not it will go)
-    --
-    local direction      = properties.direction or tfmdata.direction or 0 -- pointless, as we don't use omf fonts at all
-    target.direction     = direction
-    properties.direction = direction
-    --
-    target.size          = scaledpoints
-    --
-    target.encodingbytes = properties.encodingbytes or 1
-    target.embedding     = properties.embedding or "subset"
-    target.tounicode     = 1
-    target.cidinfo       = properties.cidinfo
-    target.format        = properties.format
-    --
-    local fontname = properties.fontname or tfmdata.fontname -- for the moment we fall back on
-    local fullname = properties.fullname or tfmdata.fullname -- names in the tfmdata although
-    local filename = properties.filename or tfmdata.filename -- that is not the right place to
-    local psname   = properties.psname   or tfmdata.psname   -- pass them
-    local name     = properties.name     or tfmdata.name
-    --
-    if not psname or psname == "" then
-     -- name used in pdf file as well as for selecting subfont in ttc/dfont
-        psname = fontname or (fullname and fonts.names.cleanname(fullname))
-    end
-    target.fontname = fontname
-    target.fullname = fullname
-    target.filename = filename
-    target.psname   = psname
-    target.name     = name
-    --
- -- inspect(properties)
-    --
-    properties.fontname = fontname
-    properties.fullname = fullname
-    properties.filename = filename
-    properties.psname   = psname
-    properties.name     = name
-    -- expansion (hz)
-    local expansion = parameters.expansion
-    if expansion then
-        target.stretch     = expansion.stretch
-        target.shrink      = expansion.shrink
-        target.step        = expansion.step
-        target.auto_expand = expansion.auto
-    end
-    -- protrusion
-    local protrusion = parameters.protrusion
-    if protrusion then
-        target.auto_protrude = protrusion.auto
-    end
-    -- widening
-    local extendfactor = parameters.extendfactor or 0
-    if extendfactor ~= 0 and extendfactor ~= 1 then
-        hdelta = hdelta * extendfactor
-        target.extend = extendfactor * 1000 -- extent ?
-    else
-        target.extend = 1000 -- extent ?
-    end
-    -- slanting
-    local slantfactor = parameters.slantfactor or 0
-    if slantfactor ~= 0 then
-        target.slant = slantfactor * 1000
-    else
-        target.slant = 0
-    end
-    --
-    targetparameters.factor       = delta
-    targetparameters.hfactor      = hdelta
-    targetparameters.vfactor      = vdelta
-    targetparameters.size         = scaledpoints
-    targetparameters.units        = units
-    targetparameters.scaledpoints = askedscaledpoints
-    --
-    local isvirtual        = properties.virtualized or tfmdata.type == "virtual"
-    local hasquality       = target.auto_expand or target.auto_protrude
-    local hasitalics       = properties.hasitalics
-    local autoitalicamount = properties.autoitalicamount
-    local stackmath        = not properties.nostackmath
-    local nonames          = properties.noglyphnames
-    local nodemode         = properties.mode == "node"
-    --
-    if changed and not next(changed) then
-        changed = false
-    end
-    --
-    target.type = isvirtual and "virtual" or "real"
-    --
-    target.postprocessors = tfmdata.postprocessors
-    --
-    local targetslant         = (parameters.slant         or parameters[1] or 0)
-    local targetspace         = (parameters.space         or parameters[2] or 0)*hdelta
-    local targetspace_stretch = (parameters.space_stretch or parameters[3] or 0)*hdelta
-    local targetspace_shrink  = (parameters.space_shrink  or parameters[4] or 0)*hdelta
-    local targetx_height      = (parameters.x_height      or parameters[5] or 0)*vdelta
-    local targetquad          = (parameters.quad          or parameters[6] or 0)*hdelta
-    local targetextra_space   = (parameters.extra_space   or parameters[7] or 0)*hdelta
-    --
-    targetparameters.slant         = targetslant -- slantperpoint
-    targetparameters.space         = targetspace
-    targetparameters.space_stretch = targetspace_stretch
-    targetparameters.space_shrink  = targetspace_shrink
-    targetparameters.x_height      = targetx_height
-    targetparameters.quad          = targetquad
-    targetparameters.extra_space   = targetextra_space
-    --
-    local ascender = parameters.ascender
-    if ascender then
-        targetparameters.ascender  = delta * ascender
-    end
-    local descender = parameters.descender
-    if descender then
-        targetparameters.descender = delta * descender
-    end
-    --
-    constructors.enhanceparameters(targetparameters) -- official copies for us
-    --
-    local protrusionfactor = (targetquad ~= 0 and 1000/targetquad) or 0
-    local scaledwidth      = defaultwidth  * hdelta
-    local scaledheight     = defaultheight * vdelta
-    local scaleddepth      = defaultdepth  * vdelta
-    --
+  local target={}
+  if tonumber(specification) then
+    specification={ size=specification }
+  end
+  local scaledpoints=specification.size
+  local relativeid=specification.relativeid
+  local properties=tfmdata.properties   or {}
+  local goodies=tfmdata.goodies    or {}
+  local resources=tfmdata.resources   or {}
+  local descriptions=tfmdata.descriptions  or {} 
+  local characters=tfmdata.characters   or {} 
+  local changed=tfmdata.changed    or {} 
+  local shared=tfmdata.shared     or {}
+  local parameters=tfmdata.parameters   or {}
+  local mathparameters=tfmdata.mathparameters or {}
+  local targetcharacters={}
+  local targetdescriptions=derivetable(descriptions)
+  local targetparameters=derivetable(parameters)
+  local targetproperties=derivetable(properties)
+  local targetgoodies=goodies            
+  target.characters=targetcharacters
+  target.descriptions=targetdescriptions
+  target.parameters=targetparameters
+  target.properties=targetproperties
+  target.goodies=targetgoodies
+  target.shared=shared
+  target.resources=resources
+  target.unscaled=tfmdata
+  local mathsize=tonumber(specification.mathsize) or 0
+  local textsize=tonumber(specification.textsize) or scaledpoints
+  local forcedsize=tonumber(parameters.mathsize  ) or 0
+  local extrafactor=tonumber(specification.factor ) or 1
+  if (mathsize==2 or forcedsize==2) and parameters.scriptpercentage then
+    scaledpoints=parameters.scriptpercentage*textsize/100
+  elseif (mathsize==3 or forcedsize==3) and parameters.scriptscriptpercentage then
+    scaledpoints=parameters.scriptscriptpercentage*textsize/100
+  elseif forcedsize>1000 then 
+    scaledpoints=forcedsize
+  end
+  targetparameters.mathsize=mathsize  
+  targetparameters.textsize=textsize  
+  targetparameters.forcedsize=forcedsize 
+  targetparameters.extrafactor=extrafactor
+  local tounicode=resources.tounicode
+  local defaultwidth=resources.defaultwidth or 0
+  local defaultheight=resources.defaultheight or 0
+  local defaultdepth=resources.defaultdepth or 0
+  local units=parameters.units or 1000
+  if target.fonts then
+    target.fonts=fastcopy(target.fonts) 
+  end
+  targetproperties.language=properties.language or "dflt" 
+  targetproperties.script=properties.script  or "dflt" 
+  targetproperties.mode=properties.mode   or "base"
+  local askedscaledpoints=scaledpoints
+  local scaledpoints,delta=constructors.calculatescale(tfmdata,scaledpoints)
+  local hdelta=delta
+  local vdelta=delta
+  target.designsize=parameters.designsize 
+  target.units_per_em=units
+  local direction=properties.direction or tfmdata.direction or 0 
+  target.direction=direction
+  properties.direction=direction
+  target.size=scaledpoints
+  target.encodingbytes=properties.encodingbytes or 1
+  target.embedding=properties.embedding or "subset"
+  target.tounicode=1
+  target.cidinfo=properties.cidinfo
+  target.format=properties.format
+  local fontname=properties.fontname or tfmdata.fontname 
+  local fullname=properties.fullname or tfmdata.fullname 
+  local filename=properties.filename or tfmdata.filename 
+  local psname=properties.psname  or tfmdata.psname  
+  local name=properties.name   or tfmdata.name
+  if not psname or psname=="" then
+    psname=fontname or (fullname and fonts.names.cleanname(fullname))
+  end
+  target.fontname=fontname
+  target.fullname=fullname
+  target.filename=filename
+  target.psname=psname
+  target.name=name
+  properties.fontname=fontname
+  properties.fullname=fullname
+  properties.filename=filename
+  properties.psname=psname
+  properties.name=name
+  local expansion=parameters.expansion
+  if expansion then
+    target.stretch=expansion.stretch
+    target.shrink=expansion.shrink
+    target.step=expansion.step
+    target.auto_expand=expansion.auto
+  end
+  local protrusion=parameters.protrusion
+  if protrusion then
+    target.auto_protrude=protrusion.auto
+  end
+  local extendfactor=parameters.extendfactor or 0
+  if extendfactor~=0 and extendfactor~=1 then
+    hdelta=hdelta*extendfactor
+    target.extend=extendfactor*1000 
+  else
+    target.extend=1000 
+  end
+  local slantfactor=parameters.slantfactor or 0
+  if slantfactor~=0 then
+    target.slant=slantfactor*1000
+  else
+    target.slant=0
+  end
+  targetparameters.factor=delta
+  targetparameters.hfactor=hdelta
+  targetparameters.vfactor=vdelta
+  targetparameters.size=scaledpoints
+  targetparameters.units=units
+  targetparameters.scaledpoints=askedscaledpoints
+  local isvirtual=properties.virtualized or tfmdata.type=="virtual"
+  local hasquality=target.auto_expand or target.auto_protrude
+  local hasitalics=properties.hasitalics
+  local autoitalicamount=properties.autoitalicamount
+  local stackmath=not properties.nostackmath
+  local nonames=properties.noglyphnames
+  local nodemode=properties.mode=="node"
+  if changed and not next(changed) then
+    changed=false
+  end
+  target.type=isvirtual and "virtual" or "real"
+  target.postprocessors=tfmdata.postprocessors
+  local targetslant=(parameters.slant     or parameters[1] or 0)
+  local targetspace=(parameters.space     or parameters[2] or 0)*hdelta
+  local targetspace_stretch=(parameters.space_stretch or parameters[3] or 0)*hdelta
+  local targetspace_shrink=(parameters.space_shrink or parameters[4] or 0)*hdelta
+  local targetx_height=(parameters.x_height   or parameters[5] or 0)*vdelta
+  local targetquad=(parameters.quad     or parameters[6] or 0)*hdelta
+  local targetextra_space=(parameters.extra_space  or parameters[7] or 0)*hdelta
+  targetparameters.slant=targetslant 
+  targetparameters.space=targetspace
+  targetparameters.space_stretch=targetspace_stretch
+  targetparameters.space_shrink=targetspace_shrink
+  targetparameters.x_height=targetx_height
+  targetparameters.quad=targetquad
+  targetparameters.extra_space=targetextra_space
+  local ascender=parameters.ascender
+  if ascender then
+    targetparameters.ascender=delta*ascender
+  end
+  local descender=parameters.descender
+  if descender then
+    targetparameters.descender=delta*descender
+  end
+  constructors.enhanceparameters(targetparameters)
+  local protrusionfactor=(targetquad~=0 and 1000/targetquad) or 0
+  local scaledwidth=defaultwidth*hdelta
+  local scaledheight=defaultheight*vdelta
+  local scaleddepth=defaultdepth*vdelta
+  if trace_defining then
+    report_defining("scaling by (%s,%s): name '%s', fullname: '%s', filename: '%s'",
+      hdelta,vdelta,name or "noname",fullname or "nofullname",filename or "nofilename")
+  end
+  local hasmath=(properties.hasmath or next(mathparameters)) and true
+  if hasmath then
     if trace_defining then
-        report_defining("scaling by (%s,%s): name '%s', fullname: '%s', filename: '%s'",
-            hdelta,vdelta,name or "noname",fullname or "nofullname",filename or "nofilename")
-    end
-    --
-    local hasmath = (properties.hasmath or next(mathparameters)) and true
-    if hasmath then
-        if trace_defining then
-            report_defining("math enabled for: name '%s', fullname: '%s', filename: '%s'",
-                name or "noname",fullname or "nofullname",filename or "nofilename")
-        end
-        constructors.assignmathparameters(target,tfmdata) -- does scaling and whatever is needed
-        properties.hasmath    = true
-        target.nomath         = false
-        target.MathConstants  = target.mathparameters
+      report_defining("math enabled for: name '%s', fullname: '%s', filename: '%s'",
+        name or "noname",fullname or "nofullname",filename or "nofilename")
+    end
+    constructors.assignmathparameters(target,tfmdata) 
+    properties.hasmath=true
+    target.nomath=false
+    target.MathConstants=target.mathparameters
+  else
+    if trace_defining then
+      report_defining("math disabled for: name '%s', fullname: '%s', filename: '%s'",
+        name or "noname",fullname or "nofullname",filename or "nofilename")
+    end
+    properties.hasmath=false
+    target.nomath=true
+    target.mathparameters=nil 
+  end
+  local italickey="italic"
+  if hasmath then
+    autoitalicamount=false 
+  else
+    if properties.textitalics then
+      italickey="italic_correction"
+      if trace_defining then
+        report_defining("text italics disabled for: name '%s', fullname: '%s', filename: '%s'",
+          name or "noname",fullname or "nofullname",filename or "nofilename")
+      end
+      if properties.delaytextitalics then
+        autoitalicamount=false
+      end
+    end
+  end
+  constructors.beforecopyingcharacters(target,tfmdata)
+  local sharedkerns={}
+  for unicode,character in next,characters do
+    local chr,description,index,touni
+    if changed then
+      local c=changed[unicode]
+      if c then
+        description=descriptions[c] or descriptions[unicode] or character
+        character=characters[c] or character
+        index=description.index or c
+        if tounicode then
+          touni=tounicode[index] 
+          if not touni then 
+            local d=descriptions[unicode] or characters[unicode]
+            local i=d.index or unicode
+            touni=tounicode[i] 
+          end
+        end
+      else
+        description=descriptions[unicode] or character
+        index=description.index or unicode
+        if tounicode then
+          touni=tounicode[index] 
+        end
+      end
     else
-        if trace_defining then
-            report_defining("math disabled for: name '%s', fullname: '%s', filename: '%s'",
-                name or "noname",fullname or "nofullname",filename or "nofilename")
-        end
-        properties.hasmath    = false
-        target.nomath         = true
-        target.mathparameters = nil -- nop
-    end
-    --
-    local italickey = "italic"
-    --
-    -- some context specific trickery (this will move to a plugin)
-    --
-    if hasmath then
-     -- the latest luatex can deal with it itself so we now disable this
-     -- mechanism here
-     --
-     -- if properties.mathitalics then
-     --     italickey = "italic_correction"
-     --     if trace_defining then
-     --         report_defining("math italics disabled for: name '%s', fullname: '%s', filename: '%s'",
-     --             name or "noname",fullname or "nofullname",filename or "nofilename")
-     --     end
-     -- end
-        autoitalicamount = false -- new
+      description=descriptions[unicode] or character
+      index=description.index or unicode
+      if tounicode then
+        touni=tounicode[index] 
+      end
+    end
+    local width=description.width
+    local height=description.height
+    local depth=description.depth
+    if width then width=hdelta*width else width=scaledwidth end
+    if height then height=vdelta*height else height=scaledheight end
+    if depth and depth~=0 then
+      depth=delta*depth
+      if nonames then
+        chr={
+          index=index,
+          height=height,
+          depth=depth,
+          width=width,
+        }
+      else
+        chr={
+          name=description.name,
+          index=index,
+          height=height,
+          depth=depth,
+          width=width,
+        }
+      end
     else
-        if properties.textitalics then
-            italickey = "italic_correction"
-            if trace_defining then
-                report_defining("text italics disabled for: name '%s', fullname: '%s', filename: '%s'",
-                    name or "noname",fullname or "nofullname",filename or "nofilename")
-            end
-            if properties.delaytextitalics then
-                autoitalicamount = false
-            end
-        end
+      if nonames then
+        chr={
+          index=index,
+          height=height,
+          width=width,
+        }
+      else
+        chr={
+          name=description.name,
+          index=index,
+          height=height,
+          width=width,
+        }
+      end
+    end
+    if touni then
+      chr.tounicode=touni
+    end
+    if hasquality then
+      local ve=character.expansion_factor
+      if ve then
+        chr.expansion_factor=ve*1000 
+      end
+      local vl=character.left_protruding
+      if vl then
+        chr.left_protruding=protrusionfactor*width*vl
+      end
+      local vr=character.right_protruding
+      if vr then
+        chr.right_protruding=protrusionfactor*width*vr
+      end
+    end
+    if autoitalicamount then
+      local vi=description.italic
+      if not vi then
+        local vi=description.boundingbox[3]-description.width+autoitalicamount
+        if vi>0 then 
+          chr[italickey]=vi*hdelta
+        end
+      elseif vi~=0 then
+        chr[italickey]=vi*hdelta
+      end
+    elseif hasitalics then
+      local vi=description.italic
+      if vi and vi~=0 then
+        chr[italickey]=vi*hdelta
+      end
     end
-    --
-    -- end of context specific trickery
-    --
-    constructors.beforecopyingcharacters(target,tfmdata)
-    --
-    local sharedkerns = { }
-    --
-    -- we can have a dumb mode (basemode without math etc) that skips most
-    --
-    for unicode, character in next, characters do
-        local chr, description, index, touni
-        if changed then
-            -- basemode hack (we try to catch missing tounicodes, e.g. needed for ssty in math cambria)
-            local c = changed[unicode]
-            if c then
-                description = descriptions[c] or descriptions[unicode] or character
-                character = characters[c] or character
-                index = description.index or c
-                if tounicode then
-                    touni = tounicode[index] -- nb: index!
-                    if not touni then -- goodie
-                        local d = descriptions[unicode] or characters[unicode]
-                        local i = d.index or unicode
-                        touni = tounicode[i] -- nb: index!
-                    end
-                end
-            else
-                description = descriptions[unicode] or character
-                index = description.index or unicode
-                if tounicode then
-                    touni = tounicode[index] -- nb: index!
-                end
-            end
+    if hasmath then
+      local vn=character.next
+      if vn then
+        chr.next=vn
+      else
+        local vv=character.vert_variants
+        if vv then
+          local t={}
+          for i=1,#vv do
+            local vvi=vv[i]
+            t[i]={
+              ["start"]=(vvi["start"]  or 0)*vdelta,
+              ["end"]=(vvi["end"]   or 0)*vdelta,
+              ["advance"]=(vvi["advance"] or 0)*vdelta,
+              ["extender"]=vvi["extender"],
+              ["glyph"]=vvi["glyph"],
+            }
+          end
+          chr.vert_variants=t
         else
-            description = descriptions[unicode] or character
-            index = description.index or unicode
-            if tounicode then
-                touni = tounicode[index] -- nb: index!
-            end
-        end
-        local width  = description.width
-        local height = description.height
-        local depth  = description.depth
-        if width  then width  = hdelta*width  else width  = scaledwidth  end
-        if height then height = vdelta*height else height = scaledheight end
-    --  if depth  then depth  = vdelta*depth  else depth  = scaleddepth  end
-        if depth and depth ~= 0 then
-            depth = delta*depth
-            if nonames then
-                chr = {
-                    index  = index,
-                    height = height,
-                    depth  = depth,
-                    width  = width,
-                }
-            else
-                chr = {
-                    name   = description.name,
-                    index  = index,
-                    height = height,
-                    depth  = depth,
-                    width  = width,
-                }
-            end
+          local hv=character.horiz_variants
+          if hv then
+            local t={}
+            for i=1,#hv do
+              local hvi=hv[i]
+              t[i]={
+                ["start"]=(hvi["start"]  or 0)*hdelta,
+                ["end"]=(hvi["end"]   or 0)*hdelta,
+                ["advance"]=(hvi["advance"] or 0)*hdelta,
+                ["extender"]=hvi["extender"],
+                ["glyph"]=hvi["glyph"],
+              }
+            end
+            chr.horiz_variants=t
+          end
+        end
+      end
+      local va=character.top_accent
+      if va then
+        chr.top_accent=vdelta*va
+      end
+      if stackmath then
+        local mk=character.mathkerns 
+        if mk then
+          local kerns={}
+          local v=mk.top_right  if v then local k={} for i=1,#v do local vi=v[i]
+            k[i]={ height=vdelta*vi.height,kern=vdelta*vi.kern }
+          end   kerns.top_right=k end
+          local v=mk.top_left   if v then local k={} for i=1,#v do local vi=v[i]
+            k[i]={ height=vdelta*vi.height,kern=vdelta*vi.kern }
+          end   kerns.top_left=k end
+          local v=mk.bottom_left if v then local k={} for i=1,#v do local vi=v[i]
+            k[i]={ height=vdelta*vi.height,kern=vdelta*vi.kern }
+          end   kerns.bottom_left=k end
+          local v=mk.bottom_right if v then local k={} for i=1,#v do local vi=v[i]
+            k[i]={ height=vdelta*vi.height,kern=vdelta*vi.kern }
+          end   kerns.bottom_right=k end
+          chr.mathkern=kerns 
+        end
+      end
+    end
+    if not nodemode then
+      local vk=character.kerns
+      if vk then
+        local s=sharedkerns[vk]
+        if not s then
+          s={}
+          for k,v in next,vk do s[k]=v*hdelta end
+          sharedkerns[vk]=s
+        end
+        chr.kerns=s
+      end
+      local vl=character.ligatures
+      if vl then
+        if true then
+          chr.ligatures=vl 
         else
-            -- this saves a little bit of memory time and memory, esp for big cjk fonts
-            if nonames then
-                chr = {
-                    index  = index,
-                    height = height,
-                    width  = width,
-                }
-            else
-                chr = {
-                    name   = description.name,
-                    index  = index,
-                    height = height,
-                    width  = width,
-                }
-            end
-        end
-        if touni then
-            chr.tounicode = touni
-        end
-    --  if trace_scaling then
-    --    report_defining("t=%s, u=%s, i=%s, n=%s c=%s",k,chr.tounicode or "",index or 0,description.name or '-',description.class or '-')
-    --  end
-        if hasquality then
-            -- we could move these calculations elsewhere (saves calculations)
-            local ve = character.expansion_factor
-            if ve then
-                chr.expansion_factor = ve*1000 -- expansionfactor, hm, can happen elsewhere
-            end
-            local vl = character.left_protruding
-            if vl then
-                chr.left_protruding  = protrusionfactor*width*vl
-            end
-            local vr = character.right_protruding
-            if vr then
-                chr.right_protruding  = protrusionfactor*width*vr
-            end
-        end
-        --
-        if autoitalicamount then
-            local vi = description.italic
-            if not vi then
-                local vi = description.boundingbox[3] - description.width + autoitalicamount
-                if vi > 0 then -- < 0 indicates no overshoot or a very small auto italic
-                    chr[italickey] = vi*hdelta
-                end
-            elseif vi ~= 0 then
-                chr[italickey] = vi*hdelta
-            end
-        elseif hasitalics then
-            local vi = description.italic
-            if vi and vi ~= 0 then
-                chr[italickey] = vi*hdelta
-            end
-        end
-        -- to be tested
-        if hasmath then
-            -- todo, just operate on descriptions.math
-            local vn = character.next
-            if vn then
-                chr.next = vn
-             -- if character.vert_variants or character.horiz_variants then
-             --     report_defining("glyph U+%05X has combination of next, vert_variants and horiz_variants",index)
-             -- end
-            else
-                local vv = character.vert_variants
-                if vv then
-                    local t = { }
-                    for i=1,#vv do
-                        local vvi = vv[i]
-                        t[i] = {
-                            ["start"]    = (vvi["start"]   or 0)*vdelta,
-                            ["end"]      = (vvi["end"]     or 0)*vdelta,
-                            ["advance"]  = (vvi["advance"] or 0)*vdelta,
-                            ["extender"] =  vvi["extender"],
-                            ["glyph"]    =  vvi["glyph"],
-                        }
-                    end
-                    chr.vert_variants = t
-                else
-                    local hv = character.horiz_variants
-                    if hv then
-                        local t = { }
-                        for i=1,#hv do
-                            local hvi = hv[i]
-                            t[i] = {
-                                ["start"]    = (hvi["start"]   or 0)*hdelta,
-                                ["end"]      = (hvi["end"]     or 0)*hdelta,
-                                ["advance"]  = (hvi["advance"] or 0)*hdelta,
-                                ["extender"] =  hvi["extender"],
-                                ["glyph"]    =  hvi["glyph"],
-                            }
-                        end
-                        chr.horiz_variants = t
-                    end
-                end
-            end
-            local va = character.top_accent
-            if va then
-                chr.top_accent = vdelta*va
-            end
-            if stackmath then
-                local mk = character.mathkerns -- not in math ?
-                if mk then
-                    local kerns = { }
-                    local v = mk.top_right    if v then local k = { } for i=1,#v do local vi = v[i]
-                        k[i] = { height = vdelta*vi.height, kern = vdelta*vi.kern }
-                    end     kerns.top_right    = k end
-                    local v = mk.top_left     if v then local k = { } for i=1,#v do local vi = v[i]
-                        k[i] = { height = vdelta*vi.height, kern = vdelta*vi.kern }
-                    end     kerns.top_left     = k end
-                    local v = mk.bottom_left  if v then local k = { } for i=1,#v do local vi = v[i]
-                        k[i] = { height = vdelta*vi.height, kern = vdelta*vi.kern }
-                    end     kerns.bottom_left  = k end
-                    local v = mk.bottom_right if v then local k = { } for i=1,#v do local vi = v[i]
-                        k[i] = { height = vdelta*vi.height, kern = vdelta*vi.kern }
-                    end     kerns.bottom_right = k end
-                    chr.mathkern = kerns -- singular -> should be patched in luatex !
-                end
-            end
-        end
-        if not nodemode then
-            local vk = character.kerns
-            if vk then
-                local s = sharedkerns[vk]
-                if not s then
-                    s = { }
-                    for k,v in next, vk do s[k] = v*hdelta end
-                    sharedkerns[vk] = s
-                end
-                chr.kerns = s
-            end
-            local vl = character.ligatures
-            if vl then
-                if true then
-                    chr.ligatures = vl -- shared
-                else
-                    local tt = { }
-                    for i,l in next, vl do
-                        tt[i] = l
-                    end
-                    chr.ligatures = tt
-                end
-            end
-        end
-        if isvirtual then
-            local vc = character.commands
-            if vc then
-                -- we assume non scaled commands here
-                -- tricky .. we need to scale pseudo math glyphs too
-                -- which is why we deal with rules too
-                local ok = false
-                for i=1,#vc do
-                    local key = vc[i][1]
-                    if key == "right" or key == "down" then
-                        ok = true
-                        break
-                    end
-                end
-                if ok then
-                    local tt = { }
-                    for i=1,#vc do
-                        local ivc = vc[i]
-                        local key = ivc[1]
-                        if key == "right" then
-                            tt[i] = { key, ivc[2]*hdelta }
-                        elseif key == "down" then
-                            tt[i] = { key, ivc[2]*vdelta }
-                        elseif key == "rule" then
-                            tt[i] = { key, ivc[2]*vdelta, ivc[3]*hdelta }
-                        else -- not comment
-                            tt[i] = ivc -- shared since in cache and untouched
-                        end
-                    end
-                    chr.commands = tt
-                else
-                    chr.commands = vc
-                end
-                chr.index = nil
-            end
+          local tt={}
+          for i,l in next,vl do
+            tt[i]=l
+          end
+          chr.ligatures=tt
+        end
+      end
+    end
+    if isvirtual then
+      local vc=character.commands
+      if vc then
+        local ok=false
+        for i=1,#vc do
+          local key=vc[i][1]
+          if key=="right" or key=="down" then
+            ok=true
+            break
+          end
+        end
+        if ok then
+          local tt={}
+          for i=1,#vc do
+            local ivc=vc[i]
+            local key=ivc[1]
+            if key=="right" then
+              tt[i]={ key,ivc[2]*hdelta }
+            elseif key=="down" then
+              tt[i]={ key,ivc[2]*vdelta }
+            elseif key=="rule" then
+              tt[i]={ key,ivc[2]*vdelta,ivc[3]*hdelta }
+            else 
+              tt[i]=ivc 
+            end
+          end
+          chr.commands=tt
+        else
+          chr.commands=vc
         end
-        targetcharacters[unicode] = chr
+        chr.index=nil
+      end
     end
-    --
-    constructors.aftercopyingcharacters(target,tfmdata)
-    --
-    return target
+    targetcharacters[unicode]=chr
+  end
+  constructors.aftercopyingcharacters(target,tfmdata)
+  return target
 end
-
 function constructors.finalize(tfmdata)
-    if tfmdata.properties and tfmdata.properties.finalized then
-        return
-    end
-    --
-    if not tfmdata.characters then
-        return nil
-    end
-    --
-    if not tfmdata.goodies then
-        tfmdata.goodies = { } -- context specific
-    end
-    --
-    local parameters = tfmdata.parameters
-    if not parameters then
-        return nil
-    end
-    --
-    if not parameters.expansion then
-        parameters.expansion = {
-            stretch = tfmdata.stretch     or 0,
-            shrink  = tfmdata.shrink      or 0,
-            step    = tfmdata.step        or 0,
-            auto    = tfmdata.auto_expand or false,
-        }
-    end
-    --
-    if not parameters.protrusion then
-        parameters.protrusion = {
-            auto = auto_protrude
-        }
-    end
-    --
-    if not parameters.size then
-        parameters.size = tfmdata.size
-    end
-    --
-    if not parameters.extendfactor then
-        parameters.extendfactor = tfmdata.extend or 0
-    end
-    --
-    if not parameters.slantfactor then
-        parameters.slantfactor = tfmdata.slant or 0
-    end
-    --
-    if not parameters.designsize then
-        parameters.designsize = tfmdata.designsize or 655360
-    end
-    --
-    if not parameters.units then
-        parameters.units = tfmdata.units_per_em or 1000
-    end
-    --
-    if not tfmdata.descriptions then
-        local descriptions = { } -- yes or no
-        setmetatableindex(descriptions, function(t,k) local v = { } t[k] = v return v end)
-        tfmdata.descriptions = descriptions
-    end
-    --
-    local properties = tfmdata.properties
-    if not properties then
-        properties = { }
-        tfmdata.properties = properties
-    end
-    --
-    if not properties.virtualized then
-        properties.virtualized = tfmdata.type == "virtual"
-    end
-    --
-    if not tfmdata.properties then
-        tfmdata.properties = {
-            fontname      = tfmdata.fontname,
-            filename      = tfmdata.filename,
-            fullname      = tfmdata.fullname,
-            name          = tfmdata.name,
-            psname        = tfmdata.psname,
-            --
-            encodingbytes = tfmdata.encodingbytes or 1,
-            embedding     = tfmdata.embedding     or "subset",
-            tounicode     = tfmdata.tounicode     or 1,
-            cidinfo       = tfmdata.cidinfo       or nil,
-            format        = tfmdata.format        or "type1",
-            direction     = tfmdata.direction     or 0,
-        }
-    end
-    if not tfmdata.resources then
-        tfmdata.resources = { }
-    end
-    if not tfmdata.shared then
-        tfmdata.shared = { }
-    end
-    --
-    -- tfmdata.fonts
-    -- tfmdata.unscaled
-    --
-    if not properties.hasmath then
-        properties.hasmath  = not tfmdata.nomath
-    end
-    --
-    tfmdata.MathConstants  = nil
-    tfmdata.postprocessors = nil
-    --
-    tfmdata.fontname       = nil
-    tfmdata.filename       = nil
-    tfmdata.fullname       = nil
-    tfmdata.name           = nil -- most tricky part
-    tfmdata.psname         = nil
-    --
-    tfmdata.encodingbytes  = nil
-    tfmdata.embedding      = nil
-    tfmdata.tounicode      = nil
-    tfmdata.cidinfo        = nil
-    tfmdata.format         = nil
-    tfmdata.direction      = nil
-    tfmdata.type           = nil
-    tfmdata.nomath         = nil
-    tfmdata.designsize     = nil
-    --
-    tfmdata.size           = nil
-    tfmdata.stretch        = nil
-    tfmdata.shrink         = nil
-    tfmdata.step           = nil
-    tfmdata.auto_expand    = nil
-    tfmdata.auto_protrude  = nil
-    tfmdata.extend         = nil
-    tfmdata.slant          = nil
-    tfmdata.units_per_em   = nil
-    --
-    properties.finalized   = true
-    --
-    return tfmdata
-end
-
---[[ldx--
-<p>A unique hash value is generated by:</p>
---ldx]]--
-
-local hashmethods        = { }
-constructors.hashmethods = hashmethods
-
-function constructors.hashfeatures(specification) -- will be overloaded
-    local features = specification.features
-    if features then
-        local t, tn = { }, 0
-        for category, list in next, features do
-            if next(list) then
-                local hasher = hashmethods[category]
-                if hasher then
-                    local hash = hasher(list)
-                    if hash then
-                        tn = tn + 1
-                        t[tn] = category .. ":" .. hash
-                    end
-                end
-            end
-        end
-        if tn > 0 then
-            return concat(t," & ")
-        end
-    end
-    return "unknown"
-end
-
-hashmethods.normal = function(list)
-    local s = { }
-    local n = 0
-    for k, v in next, list do
-        if k ~= "number" and k ~= "features" then -- I need to figure this out, features
-            n = n + 1
-            s[n] = k
-        end
-    end
-    if n > 0 then
-        sort(s)
-        for i=1,n do
-            local k = s[i]
-            s[i] = k .. '=' .. tostring(list[k])
-        end
-        return concat(s,"+")
-    end
+  if tfmdata.properties and tfmdata.properties.finalized then
+    return
+  end
+  if not tfmdata.characters then
+    return nil
+  end
+  if not tfmdata.goodies then
+    tfmdata.goodies={} 
+  end
+  local parameters=tfmdata.parameters
+  if not parameters then
+    return nil
+  end
+  if not parameters.expansion then
+    parameters.expansion={
+      stretch=tfmdata.stretch   or 0,
+      shrink=tfmdata.shrink   or 0,
+      step=tfmdata.step    or 0,
+      auto=tfmdata.auto_expand or false,
+    }
+  end
+  if not parameters.protrusion then
+    parameters.protrusion={
+      auto=auto_protrude
+    }
+  end
+  if not parameters.size then
+    parameters.size=tfmdata.size
+  end
+  if not parameters.extendfactor then
+    parameters.extendfactor=tfmdata.extend or 0
+  end
+  if not parameters.slantfactor then
+    parameters.slantfactor=tfmdata.slant or 0
+  end
+  if not parameters.designsize then
+    parameters.designsize=tfmdata.designsize or 655360
+  end
+  if not parameters.units then
+    parameters.units=tfmdata.units_per_em or 1000
+  end
+  if not tfmdata.descriptions then
+    local descriptions={} 
+    setmetatableindex(descriptions,function(t,k) local v={} t[k]=v return v end)
+    tfmdata.descriptions=descriptions
+  end
+  local properties=tfmdata.properties
+  if not properties then
+    properties={}
+    tfmdata.properties=properties
+  end
+  if not properties.virtualized then
+    properties.virtualized=tfmdata.type=="virtual"
+  end
+  if not tfmdata.properties then
+    tfmdata.properties={
+      fontname=tfmdata.fontname,
+      filename=tfmdata.filename,
+      fullname=tfmdata.fullname,
+      name=tfmdata.name,
+      psname=tfmdata.psname,
+      encodingbytes=tfmdata.encodingbytes or 1,
+      embedding=tfmdata.embedding   or "subset",
+      tounicode=tfmdata.tounicode   or 1,
+      cidinfo=tfmdata.cidinfo    or nil,
+      format=tfmdata.format    or "type1",
+      direction=tfmdata.direction   or 0,
+    }
+  end
+  if not tfmdata.resources then
+    tfmdata.resources={}
+  end
+  if not tfmdata.shared then
+    tfmdata.shared={}
+  end
+  if not properties.hasmath then
+    properties.hasmath=not tfmdata.nomath
+  end
+  tfmdata.MathConstants=nil
+  tfmdata.postprocessors=nil
+  tfmdata.fontname=nil
+  tfmdata.filename=nil
+  tfmdata.fullname=nil
+  tfmdata.name=nil 
+  tfmdata.psname=nil
+  tfmdata.encodingbytes=nil
+  tfmdata.embedding=nil
+  tfmdata.tounicode=nil
+  tfmdata.cidinfo=nil
+  tfmdata.format=nil
+  tfmdata.direction=nil
+  tfmdata.type=nil
+  tfmdata.nomath=nil
+  tfmdata.designsize=nil
+  tfmdata.size=nil
+  tfmdata.stretch=nil
+  tfmdata.shrink=nil
+  tfmdata.step=nil
+  tfmdata.auto_expand=nil
+  tfmdata.auto_protrude=nil
+  tfmdata.extend=nil
+  tfmdata.slant=nil
+  tfmdata.units_per_em=nil
+  properties.finalized=true
+  return tfmdata
+end
+local hashmethods={}
+constructors.hashmethods=hashmethods
+function constructors.hashfeatures(specification) 
+  local features=specification.features
+  if features then
+    local t,tn={},0
+    for category,list in next,features do
+      if next(list) then
+        local hasher=hashmethods[category]
+        if hasher then
+          local hash=hasher(list)
+          if hash then
+            tn=tn+1
+            t[tn]=category..":"..hash
+          end
+        end
+      end
+    end
+    if tn>0 then
+      return concat(t," & ")
+    end
+  end
+  return "unknown"
+end
+hashmethods.normal=function(list)
+  local s={}
+  local n=0
+  for k,v in next,list do
+    if k~="number" and k~="features" then 
+      n=n+1
+      s[n]=k
+    end
+  end
+  if n>0 then
+    sort(s)
+    for i=1,n do
+      local k=s[i]
+      s[i]=k..'='..tostring(list[k])
+    end
+    return concat(s,"+")
+  end
 end
-
---[[ldx--
-<p>In principle we can share tfm tables when we are in node for a font, but then
-we need to define a font switch as an id/attr switch which is no fun, so in that
-case users can best use dynamic features ... so, we will not use that speedup. Okay,
-when we get rid of base mode we can optimize even further by sharing, but then we
-loose our testcases for <l n='luatex'/>.</p>
---ldx]]--
-
 function constructors.hashinstance(specification,force)
-    local hash, size, fallbacks = specification.hash, specification.size, specification.fallbacks
-    if force or not hash then
-        hash = constructors.hashfeatures(specification)
-        specification.hash = hash
-    end
-    if size < 1000 and designsizes[hash] then
-        size = math.round(constructors.scaled(size,designsizes[hash]))
-        specification.size = size
-    end
- -- local mathsize = specification.mathsize or 0
- -- if mathsize > 0 then
- --     local textsize = specification.textsize
- --     if fallbacks then
- --         return hash .. ' @ ' .. tostring(size) .. ' [ ' .. tostring(mathsize) .. ' : ' .. tostring(textsize) .. ' ] @ ' .. fallbacks
- --     else
- --         return hash .. ' @ ' .. tostring(size) .. ' [ ' .. tostring(mathsize) .. ' : ' .. tostring(textsize) .. ' ]'
- --     end
- -- else
-        if fallbacks then
-            return hash .. ' @ ' .. tostring(size) .. ' @ ' .. fallbacks
-        else
-            return hash .. ' @ ' .. tostring(size)
-        end
- -- end
-end
-
-function constructors.setname(tfmdata,specification) -- todo: get specification from tfmdata
-    if constructors.namemode == "specification" then
-        -- not to be used in context !
-        local specname = specification.specification
-        if specname then
-            tfmdata.properties.name = specname
-            if trace_defining then
-                report_otf("overloaded fontname: '%s'",specname)
-            end
-        end
+  local hash,size,fallbacks=specification.hash,specification.size,specification.fallbacks
+  if force or not hash then
+    hash=constructors.hashfeatures(specification)
+    specification.hash=hash
+  end
+  if size<1000 and designsizes[hash] then
+    size=math.round(constructors.scaled(size,designsizes[hash]))
+    specification.size=size
+  end
+    if fallbacks then
+      return hash..' @ '..tostring(size)..' @ '..fallbacks
+    else
+      return hash..' @ '..tostring(size)
     end
 end
-
-function constructors.checkedfilename(data)
-    local foundfilename = data.foundfilename
-    if not foundfilename then
-        local askedfilename = data.filename or ""
-        if askedfilename ~= "" then
-            askedfilename = resolvers.resolve(askedfilename) -- no shortcut
-            foundfilename = resolvers.findbinfile(askedfilename,"") or ""
-            if foundfilename == "" then
-                report_defining("source file '%s' is not found",askedfilename)
-                foundfilename = resolvers.findbinfile(file.basename(askedfilename),"") or ""
-                if foundfilename ~= "" then
-                    report_defining("using source file '%s' (cache mismatch)",foundfilename)
-                end
-            end
-        end
-        data.foundfilename = foundfilename
+function constructors.setname(tfmdata,specification) 
+  if constructors.namemode=="specification" then
+    local specname=specification.specification
+    if specname then
+      tfmdata.properties.name=specname
+      if trace_defining then
+        report_otf("overloaded fontname: '%s'",specname)
+      end
     end
-    return foundfilename
+  end
 end
-
-local formats = allocate()
-fonts.formats = formats
-
-setmetatableindex(formats, function(t,k)
-    local l = lower(k)
-    if rawget(t,k) then
-        t[k] = l
-        return l
-    end
-    return rawget(t,file.suffix(l))
+function constructors.checkedfilename(data)
+  local foundfilename=data.foundfilename
+  if not foundfilename then
+    local askedfilename=data.filename or ""
+    if askedfilename~="" then
+      askedfilename=resolvers.resolve(askedfilename) 
+      foundfilename=resolvers.findbinfile(askedfilename,"") or ""
+      if foundfilename=="" then
+        report_defining("source file '%s' is not found",askedfilename)
+        foundfilename=resolvers.findbinfile(file.basename(askedfilename),"") or ""
+        if foundfilename~="" then
+          report_defining("using source file '%s' (cache mismatch)",foundfilename)
+        end
+      end
+    end
+    data.foundfilename=foundfilename
+  end
+  return foundfilename
+end
+local formats=allocate()
+fonts.formats=formats
+setmetatableindex(formats,function(t,k)
+  local l=lower(k)
+  if rawget(t,k) then
+    t[k]=l
+    return l
+  end
+  return rawget(t,file.suffix(l))
 end)
-
-local locations = { }
-
+local locations={}
 local function setindeed(mode,target,group,name,action,position)
-    local t = target[mode]
-    if not t then
-        report_defining("fatal error in setting feature '%s', group '%s', mode '%s'",name or "?",group or "?",mode)
-        os.exit()
-    elseif position then
-        -- todo: remove existing
-        insert(t, position, { name = name, action = action })
-    else
-        for i=1,#t do
-            local ti = t[i]
-            if ti.name == name then
-                ti.action = action
-                return
-            end
-        end
-        insert(t, { name = name, action = action })
+  local t=target[mode]
+  if not t then
+    report_defining("fatal error in setting feature '%s', group '%s', mode '%s'",name or "?",group or "?",mode)
+    os.exit()
+  elseif position then
+    insert(t,position,{ name=name,action=action })
+  else
+    for i=1,#t do
+      local ti=t[i]
+      if ti.name==name then
+        ti.action=action
+        return
+      end
     end
+    insert(t,{ name=name,action=action })
+  end
 end
-
 local function set(group,name,target,source)
-    target = target[group]
-    if not target then
-        report_defining("fatal target error in setting feature '%s', group '%s'",name or "?",group or "?")
-        os.exit()
+  target=target[group]
+  if not target then
+    report_defining("fatal target error in setting feature '%s', group '%s'",name or "?",group or "?")
+    os.exit()
+  end
+  local source=source[group]
+  if not source then
+    report_defining("fatal source error in setting feature '%s', group '%s'",name or "?",group or "?")
+    os.exit()
+  end
+  local node=source.node
+  local base=source.base
+  local position=source.position
+  if node then
+    setindeed("node",target,group,name,node,position)
+  end
+  if base then
+    setindeed("base",target,group,name,base,position)
+  end
+end
+local function register(where,specification)
+  local name=specification.name
+  if name and name~="" then
+    local default=specification.default
+    local description=specification.description
+    local initializers=specification.initializers
+    local processors=specification.processors
+    local manipulators=specification.manipulators
+    local modechecker=specification.modechecker
+    if default then
+      where.defaults[name]=default
     end
-    local source = source[group]
-    if not source then
-        report_defining("fatal source error in setting feature '%s', group '%s'",name or "?",group or "?")
-        os.exit()
+    if description and description~="" then
+      where.descriptions[name]=description
     end
-    local node     = source.node
-    local base     = source.base
-    local position = source.position
-    if node then
-        setindeed("node",target,group,name,node,position)
+    if initializers then
+      set('initializers',name,where,specification)
     end
-    if base then
-        setindeed("base",target,group,name,base,position)
+    if processors then
+      set('processors',name,where,specification)
     end
-end
-
-local function register(where,specification)
-    local name = specification.name
-    if name and name ~= "" then
-        local default      = specification.default
-        local description  = specification.description
-        local initializers = specification.initializers
-        local processors   = specification.processors
-        local manipulators = specification.manipulators
-        local modechecker  = specification.modechecker
-        if default then
-            where.defaults[name] = default
-        end
-        if description and description ~= "" then
-            where.descriptions[name] = description
-        end
-        if initializers then
-            set('initializers',name,where,specification)
-        end
-        if processors then
-            set('processors',  name,where,specification)
-        end
-        if manipulators then
-            set('manipulators',name,where,specification)
-        end
-        if modechecker then
-           where.modechecker = modechecker
-        end
+    if manipulators then
+      set('manipulators',name,where,specification)
     end
-end
-
-constructors.registerfeature = register
-
-function constructors.getfeatureaction(what,where,mode,name)
-    what = handlers[what].features
-    if what then
-        where = what[where]
-        if where then
-            mode = where[mode]
-            if mode then
-                for i=1,#mode do
-                    local m = mode[i]
-                    if m.name == name then
-                        return m.action
-                    end
-                end
-            end
-        end
-    end
-end
-
-function constructors.newhandler(what) -- could be a metatable newindex
-    local handler = handlers[what]
-    if not handler then
-        handler = { }
-        handlers[what] = handler
+    if modechecker then
+      where.modechecker=modechecker
     end
-    return handler
+  end
 end
-
-function constructors.newfeatures(what) -- could be a metatable newindex
-    local handler = handlers[what]
-    local features = handler.features
-    if not features then
-        local tables     = handler.tables     -- can be preloaded
-        local statistics = handler.statistics -- can be preloaded
-        features = allocate {
-            defaults     = { },
-            descriptions = tables and tables.features or { },
-            used         = statistics and statistics.usedfeatures or { },
-            initializers = { base = { }, node = { } },
-            processors   = { base = { }, node = { } },
-            manipulators = { base = { }, node = { } },
-        }
-        features.register = function(specification) return register(features,specification) end
-        handler.features = features -- will also become hidden
-    end
-    return features
+constructors.registerfeature=register
+function constructors.getfeatureaction(what,where,mode,name)
+  what=handlers[what].features
+  if what then
+    where=what[where]
+    if where then
+      mode=where[mode]
+      if mode then
+        for i=1,#mode do
+          local m=mode[i]
+          if m.name==name then
+            return m.action
+          end
+        end
+      end
+    end
+  end
+end
+function constructors.newhandler(what) 
+  local handler=handlers[what]
+  if not handler then
+    handler={}
+    handlers[what]=handler
+  end
+  return handler
+end
+function constructors.newfeatures(what) 
+  local handler=handlers[what]
+  local features=handler.features
+  if not features then
+    local tables=handler.tables   
+    local statistics=handler.statistics 
+    features=allocate {
+      defaults={},
+      descriptions=tables and tables.features or {},
+      used=statistics and statistics.usedfeatures or {},
+      initializers={ base={},node={} },
+      processors={ base={},node={} },
+      manipulators={ base={},node={} },
+    }
+    features.register=function(specification) return register(features,specification) end
+    handler.features=features 
+  end
+  return features
 end
-
---[[ldx--
-<p>We need to check for default features. For this we provide
-a helper function.</p>
---ldx]]--
-
 function constructors.checkedfeatures(what,features)
-    local defaults = handlers[what].features.defaults
-    if features and next(features) then
-        features = fastcopy(features) -- can be inherited (mt) but then no loops possible
-        for key, value in next, defaults do
-            if features[key] == nil then
-                features[key] = value
-            end
-        end
-        return features
-    else
-        return fastcopy(defaults) -- we can change features in place
+  local defaults=handlers[what].features.defaults
+  if features and next(features) then
+    features=fastcopy(features) 
+    for key,value in next,defaults do
+      if features[key]==nil then
+        features[key]=value
+      end
     end
+    return features
+  else
+    return fastcopy(defaults) 
+  end
 end
-
--- before scaling
-
 function constructors.initializefeatures(what,tfmdata,features,trace,report)
-    if features and next(features) then
-        local properties       = tfmdata.properties or { } -- brrr
-        local whathandler      = handlers[what]
-        local whatfeatures     = whathandler.features
-        local whatinitializers = whatfeatures.initializers
-        local whatmodechecker  = whatfeatures.modechecker
-        -- properties.mode can be enforces (for instance in font-otd)
-        local mode             = properties.mode or (whatmodechecker and whatmodechecker(tfmdata,features,features.mode)) or features.mode or "base"
-        properties.mode        = mode -- also status
-        features.mode          = mode -- both properties.mode or features.mode can be changed
-        --
-        local done             = { }
-        while true do
-            local redo = false
-            local initializers = whatfeatures.initializers[mode]
-            if initializers then
-                for i=1,#initializers do
-                    local step = initializers[i]
-                    local feature = step.name
--- we could intercept mode here .. needs a rewrite of this whole loop then but it's cleaner that way
-                    local value = features[feature]
-                    if not value then
-                        -- disabled
-                    elseif done[feature] then
-                        -- already done
-                    else
-                        local action = step.action
-                        if trace then
-                            report("initializing feature %s to %s for mode %s for font %s",feature,
-                                tostring(value),mode or 'unknown', tfmdata.properties.fullname or 'unknown')
-                        end
-                        action(tfmdata,value,features) -- can set mode (e.g. goodies) so it can trigger a restart
-                        if mode ~= properties.mode or mode ~= features.mode then
-                            if whatmodechecker then
-                                properties.mode = whatmodechecker(tfmdata,features,properties.mode) -- force checking
-                                features.mode   = properties.mode
-                            end
-                            if mode ~= properties.mode then
-                                mode = properties.mode
-                                redo = true
-                            end
-                        end
-                        done[feature] = true
-                    end
-                    if redo then
-                        break
-                    end
-                end
-                if not redo then
-                    break
-                end
-            else
-                break
-            end
+  if features and next(features) then
+    local properties=tfmdata.properties or {} 
+    local whathandler=handlers[what]
+    local whatfeatures=whathandler.features
+    local whatinitializers=whatfeatures.initializers
+    local whatmodechecker=whatfeatures.modechecker
+    local mode=properties.mode or (whatmodechecker and whatmodechecker(tfmdata,features,features.mode)) or features.mode or "base"
+    properties.mode=mode 
+    features.mode=mode
+    local done={}
+    while true do
+      local redo=false
+      local initializers=whatfeatures.initializers[mode]
+      if initializers then
+        for i=1,#initializers do
+          local step=initializers[i]
+          local feature=step.name
+          local value=features[feature]
+          if not value then
+          elseif done[feature] then
+          else
+            local action=step.action
+            if trace then
+              report("initializing feature %s to %s for mode %s for font %s",feature,
+                tostring(value),mode or 'unknown',tfmdata.properties.fullname or 'unknown')
+            end
+            action(tfmdata,value,features) 
+            if mode~=properties.mode or mode~=features.mode then
+              if whatmodechecker then
+                properties.mode=whatmodechecker(tfmdata,features,properties.mode) 
+                features.mode=properties.mode
+              end
+              if mode~=properties.mode then
+                mode=properties.mode
+                redo=true
+              end
+            end
+            done[feature]=true
+          end
+          if redo then
+            break
+          end
         end
-        properties.mode = mode -- to be sure
-        return true
-    else
-        return false
+        if not redo then
+          break
+        end
+      else
+        break
+      end
     end
+    properties.mode=mode 
+    return true
+  else
+    return false
+  end
 end
-
--- while typesetting
-
 function constructors.collectprocessors(what,tfmdata,features,trace,report)
-    local processes, nofprocesses = { }, 0
-    if features and next(features) then
-        local properties     = tfmdata.properties
-        local whathandler    = handlers[what]
-        local whatfeatures   = whathandler.features
-        local whatprocessors = whatfeatures.processors
-        local processors     = whatprocessors[properties.mode]
-        if processors then
-            for i=1,#processors do
-                local step = processors[i]
-                local feature = step.name
-                if features[feature] then
-                    local action = step.action
-                    if trace then
-                        report("installing feature processor %s for mode %s for font %s",feature,
-                            mode or 'unknown', tfmdata.properties.fullname or 'unknown')
-                    end
-                    if action then
-                        nofprocesses = nofprocesses + 1
-                        processes[nofprocesses] = action
-                    end
-                end
-            end
-        elseif trace then
-            report("no feature processors for mode %s for font %s",
-                mode or 'unknown', tfmdata.properties.fullname or 'unknown')
-        end
-    end
-    return processes
+  local processes,nofprocesses={},0
+  if features and next(features) then
+    local properties=tfmdata.properties
+    local whathandler=handlers[what]
+    local whatfeatures=whathandler.features
+    local whatprocessors=whatfeatures.processors
+    local processors=whatprocessors[properties.mode]
+    if processors then
+      for i=1,#processors do
+        local step=processors[i]
+        local feature=step.name
+        if features[feature] then
+          local action=step.action
+          if trace then
+            report("installing feature processor %s for mode %s for font %s",feature,
+              mode or 'unknown',tfmdata.properties.fullname or 'unknown')
+          end
+          if action then
+            nofprocesses=nofprocesses+1
+            processes[nofprocesses]=action
+          end
+        end
+      end
+    elseif trace then
+      report("no feature processors for mode %s for font %s",
+        mode or 'unknown',tfmdata.properties.fullname or 'unknown')
+    end
+  end
+  return processes
 end
-
--- after scaling
-
 function constructors.applymanipulators(what,tfmdata,features,trace,report)
-    if features and next(features) then
-        local properties       = tfmdata.properties
-        local whathandler      = handlers[what]
-        local whatfeatures     = whathandler.features
-        local whatmanipulators = whatfeatures.manipulators
-        local manipulators     = whatmanipulators[properties.mode]
-        if manipulators then
-            for i=1,#manipulators do
-                local step = manipulators[i]
-                local feature = step.name
-                local value = features[feature]
-                if value then
-                    local action = step.action
-                    if trace then
-                        report("applying feature manipulator %s for mode %s for font %s",feature,
-                            mode or 'unknown', tfmdata.properties.fullname or 'unknown')
-                    end
-                    if action then
-                        action(tfmdata,feature,value)
-                    end
-                end
-            end
-        end
-    end
+  if features and next(features) then
+    local properties=tfmdata.properties
+    local whathandler=handlers[what]
+    local whatfeatures=whathandler.features
+    local whatmanipulators=whatfeatures.manipulators
+    local manipulators=whatmanipulators[properties.mode]
+    if manipulators then
+      for i=1,#manipulators do
+        local step=manipulators[i]
+        local feature=step.name
+        local value=features[feature]
+        if value then
+          local action=step.action
+          if trace then
+            report("applying feature manipulator %s for mode %s for font %s",feature,
+              mode or 'unknown',tfmdata.properties.fullname or 'unknown')
+          end
+          if action then
+            action(tfmdata,feature,value)
+          end
+        end
+      end
+    end
+  end
 end
 
 end -- closure
 
 do -- begin closure to overcome local limits and interference
 
-if not modules then modules = { } end modules ['luatex-font-enc'] = {
-    version   = 1.001,
-    comment   = "companion to luatex-*.tex",
-    author    = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
-    copyright = "PRAGMA ADE / ConTeXt Development Team",
-    license   = "see context related readme files"
+if not modules then modules={} end modules ['luatex-font-enc']={
+  version=1.001,
+  comment="companion to luatex-*.tex",
+  author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+  copyright="PRAGMA ADE / ConTeXt Development Team",
+  license="see context related readme files"
 }
-
 if context then
-    texio.write_nl("fatal error: this module is not for context")
-    os.exit()
-end
-
-local fonts         = fonts
-fonts.encodings     = { }
-fonts.encodings.agl = { }
-
-setmetatable(fonts.encodings.agl, { __index = function(t,k)
-    if k == "unicodes" then
-        texio.write(" <loading (extended) adobe glyph list>")
-        local unicodes = dofile(resolvers.findfile("font-age.lua"))
-        fonts.encodings.agl = { unicodes = unicodes }
-        return unicodes
-    else
-        return nil
-    end
+  texio.write_nl("fatal error: this module is not for context")
+  os.exit()
+end
+local fonts=fonts
+fonts.encodings={}
+fonts.encodings.agl={}
+setmetatable(fonts.encodings.agl,{ __index=function(t,k)
+  if k=="unicodes" then
+    texio.write(" <loading (extended) adobe glyph list>")
+    local unicodes=dofile(resolvers.findfile("font-age.lua"))
+    fonts.encodings.agl={ unicodes=unicodes }
+    return unicodes
+  else
+    return nil
+  end
 end })
 
-
 end -- closure
 
 do -- begin closure to overcome local limits and interference
 
-if not modules then modules = { } end modules ['font-cid'] = {
-    version   = 1.001,
-    comment   = "companion to font-otf.lua (cidmaps)",
-    author    = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
-    copyright = "PRAGMA ADE / ConTeXt Development Team",
-    license   = "see context related readme files"
+if not modules then modules={} end modules ['font-cid']={
+  version=1.001,
+  comment="companion to font-otf.lua (cidmaps)",
+  author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+  copyright="PRAGMA ADE / ConTeXt Development Team",
+  license="see context related readme files"
 }
-
-local format, match, lower = string.format, string.match, string.lower
-local tonumber = tonumber
-local P, S, R, C, V, lpegmatch = lpeg.P, lpeg.S, lpeg.R, lpeg.C, lpeg.V, lpeg.match
-
-local fonts, logs, trackers = fonts, logs, trackers
-
-local trace_loading = false  trackers.register("otf.loading", function(v) trace_loading = v end)
-
-local report_otf    = logs.reporter("fonts","otf loading")
-
-local cid           = { }
-fonts.cid           = cid
-
-local cidmap        = { }
-local cidmax        = 10
-
--- original string parser: 0.109, lpeg parser: 0.036 seconds for Adobe-CNS1-4.cidmap
---
--- 18964 18964 (leader)
--- 0 /.notdef
--- 1..95 0020
--- 99 3000
-
-local number  = C(R("09","af","AF")^1)
-local space   = S(" \n\r\t")
-local spaces  = space^0
-local period  = P(".")
-local periods = period * period
-local name    = P("/") * C((1-space)^1)
-
-local unicodes, names = { }, { } -- we could use Carg now
-
+local format,match,lower=string.format,string.match,string.lower
+local tonumber=tonumber
+local P,S,R,C,V,lpegmatch=lpeg.P,lpeg.S,lpeg.R,lpeg.C,lpeg.V,lpeg.match
+local fonts,logs,trackers=fonts,logs,trackers
+local trace_loading=false trackers.register("otf.loading",function(v) trace_loading=v end)
+local report_otf=logs.reporter("fonts","otf loading")
+local cid={}
+fonts.cid=cid
+local cidmap={}
+local cidmax=10
+local number=C(R("09","af","AF")^1)
+local space=S(" \n\r\t")
+local spaces=space^0
+local period=P(".")
+local periods=period*period
+local name=P("/")*C((1-space)^1)
+local unicodes,names={},{} 
 local function do_one(a,b)
-    unicodes[tonumber(a)] = tonumber(b,16)
+  unicodes[tonumber(a)]=tonumber(b,16)
 end
-
 local function do_range(a,b,c)
-    c = tonumber(c,16)
-    for i=tonumber(a),tonumber(b) do
-        unicodes[i] = c
-        c = c + 1
-    end
+  c=tonumber(c,16)
+  for i=tonumber(a),tonumber(b) do
+    unicodes[i]=c
+    c=c+1
+  end
 end
-
 local function do_name(a,b)
-    names[tonumber(a)] = b
-end
-
-local grammar = P { "start",
-    start  = number * spaces * number * V("series"),
-    series = (spaces * (V("one") + V("range") + V("named")))^1,
-    one    = (number * spaces  * number) / do_one,
-    range  = (number * periods * number * spaces * number) / do_range,
-    named  = (number * spaces  * name) / do_name
+  names[tonumber(a)]=b
+end
+local grammar=P { "start",
+  start=number*spaces*number*V("series"),
+  series=(spaces*(V("one")+V("range")+V("named")))^1,
+  one=(number*spaces*number)/do_one,
+  range=(number*periods*number*spaces*number)/do_range,
+  named=(number*spaces*name)/do_name
 }
-
 local function loadcidfile(filename)
-    local data = io.loaddata(filename)
-    if data then
-        unicodes, names = { }, { }
-        lpegmatch(grammar,data)
-        local supplement, registry, ordering = match(filename,"^(.-)%-(.-)%-()%.(.-)$")
-        return {
-            supplement = supplement,
-            registry   = registry,
-            ordering   = ordering,
-            filename   = filename,
-            unicodes   = unicodes,
-            names      = names
-        }
-    end
+  local data=io.loaddata(filename)
+  if data then
+    unicodes,names={},{}
+    lpegmatch(grammar,data)
+    local supplement,registry,ordering=match(filename,"^(.-)%-(.-)%-()%.(.-)$")
+    return {
+      supplement=supplement,
+      registry=registry,
+      ordering=ordering,
+      filename=filename,
+      unicodes=unicodes,
+      names=names
+    }
+  end
 end
-
-cid.loadfile   = loadcidfile -- we use the frozen variant
-local template = "%s-%s-%s.cidmap"
-
+cid.loadfile=loadcidfile 
+local template="%s-%s-%s.cidmap"
 local function locate(registry,ordering,supplement)
-    local filename = format(template,registry,ordering,supplement)
-    local hashname = lower(filename)
-    local found    = cidmap[hashname]
-    if not found then
+  local filename=format(template,registry,ordering,supplement)
+  local hashname=lower(filename)
+  local found=cidmap[hashname]
+  if not found then
+    if trace_loading then
+      report_otf("checking cidmap, registry: %s, ordering: %s, supplement: %s, filename: %s",registry,ordering,supplement,filename)
+    end
+    local fullname=resolvers.findfile(filename,'cid') or ""
+    if fullname~="" then
+      found=loadcidfile(fullname)
+      if found then
         if trace_loading then
-            report_otf("checking cidmap, registry: %s, ordering: %s, supplement: %s, filename: %s",registry,ordering,supplement,filename)
-        end
-        local fullname = resolvers.findfile(filename,'cid') or ""
-        if fullname ~= "" then
-            found = loadcidfile(fullname)
-            if found then
-                if trace_loading then
-                    report_otf("using cidmap file %s",filename)
-                end
-                cidmap[hashname] = found
-                found.usedname = file.basename(filename)
-            end
+          report_otf("using cidmap file %s",filename)
         end
+        cidmap[hashname]=found
+        found.usedname=file.basename(filename)
+      end
     end
-    return found
+  end
+  return found
 end
-
--- cf Arthur R. we can safely scan upwards since cids are downward compatible
-
 function cid.getmap(specification)
-    if not specification then
-        report_otf("invalid cidinfo specification (table expected)")
-        return
-    end
-    local registry = specification.registry
-    local ordering = specification.ordering
-    local supplement = specification.supplement
-    -- check for already loaded file
-    local filename = format(registry,ordering,supplement)
-    local found = cidmap[lower(filename)]
-    if found then
-        return found
-    end
-    if trace_loading then
-        report_otf("needed cidmap, registry: %s, ordering: %s, supplement: %s",registry,ordering,supplement)
-    end
-    found = locate(registry,ordering,supplement)
-    if not found then
-        local supnum = tonumber(supplement)
-        local cidnum = nil
-        -- next highest (alternatively we could start high)
-        if supnum < cidmax then
-            for s=supnum+1,cidmax do
-                local c = locate(registry,ordering,s)
-                if c then
-                    found, cidnum = c, s
-                    break
-                end
-            end
-        end
-        -- next lowest (least worse fit)
-        if not found and supnum > 0 then
-            for s=supnum-1,0,-1 do
-                local c = locate(registry,ordering,s)
-                if c then
-                    found, cidnum = c, s
-                    break
-                end
-            end
-        end
-        -- prevent further lookups -- somewhat tricky
-        registry = lower(registry)
-        ordering = lower(ordering)
-        if found and cidnum > 0 then
-            for s=0,cidnum-1 do
-                local filename = format(template,registry,ordering,s)
-                if not cidmap[filename] then
-                    cidmap[filename] = found
-                end
-            end
-        end
-    end
+  if not specification then
+    report_otf("invalid cidinfo specification (table expected)")
+    return
+  end
+  local registry=specification.registry
+  local ordering=specification.ordering
+  local supplement=specification.supplement
+  local filename=format(registry,ordering,supplement)
+  local found=cidmap[lower(filename)]
+  if found then
     return found
+  end
+  if trace_loading then
+    report_otf("needed cidmap, registry: %s, ordering: %s, supplement: %s",registry,ordering,supplement)
+  end
+  found=locate(registry,ordering,supplement)
+  if not found then
+    local supnum=tonumber(supplement)
+    local cidnum=nil
+    if supnum<cidmax then
+      for s=supnum+1,cidmax do
+        local c=locate(registry,ordering,s)
+        if c then
+          found,cidnum=c,s
+          break
+        end
+      end
+    end
+    if not found and supnum>0 then
+      for s=supnum-1,0,-1 do
+        local c=locate(registry,ordering,s)
+        if c then
+          found,cidnum=c,s
+          break
+        end
+      end
+    end
+    registry=lower(registry)
+    ordering=lower(ordering)
+    if found and cidnum>0 then
+      for s=0,cidnum-1 do
+        local filename=format(template,registry,ordering,s)
+        if not cidmap[filename] then
+          cidmap[filename]=found
+        end
+      end
+    end
+  end
+  return found
 end
 
 end -- closure
 
 do -- begin closure to overcome local limits and interference
 
-if not modules then modules = { } end modules ['font-map'] = {
-    version   = 1.001,
-    comment   = "companion to font-ini.mkiv",
-    author    = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
-    copyright = "PRAGMA ADE / ConTeXt Development Team",
-    license   = "see context related readme files"
+if not modules then modules={} end modules ['font-map']={
+  version=1.001,
+  comment="companion to font-ini.mkiv",
+  author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+  copyright="PRAGMA ADE / ConTeXt Development Team",
+  license="see context related readme files"
 }
-
-local tonumber = tonumber
-
-local match, format, find, concat, gsub, lower = string.match, string.format, string.find, table.concat, string.gsub, string.lower
-local P, R, S, C, Ct, Cc, lpegmatch = lpeg.P, lpeg.R, lpeg.S, lpeg.C, lpeg.Ct, lpeg.Cc, lpeg.match
-local utfbyte = utf.byte
-local floor = math.floor
-
-local trace_loading = false  trackers.register("fonts.loading", function(v) trace_loading    = v end)
-local trace_mapping = false  trackers.register("fonts.mapping", function(v) trace_unimapping = v end)
-
-local report_fonts  = logs.reporter("fonts","loading") -- not otf only
-
-local fonts         = fonts
-local mappings      = fonts.mappings or { }
-fonts.mappings      = mappings
-
---[[ldx--
-<p>Eventually this code will disappear because map files are kind
-of obsolete. Some code may move to runtime or auxiliary modules.</p>
-<p>The name to unciode related code will stay of course.</p>
---ldx]]--
-
-local function loadlumtable(filename) -- will move to font goodies
-    local lumname = file.replacesuffix(file.basename(filename),"lum")
-    local lumfile = resolvers.findfile(lumname,"map") or ""
-    if lumfile ~= "" and lfs.isfile(lumfile) then
-        if trace_loading or trace_mapping then
-            report_fonts("enhance: loading %s ",lumfile)
-        end
-        lumunic = dofile(lumfile)
-        return lumunic, lumfile
-    end
-end
-
-local hex     = R("AF","09")
-local hexfour = (hex*hex*hex*hex) / function(s) return tonumber(s,16) end
-local hexsix  = (hex^1)           / function(s) return tonumber(s,16) end
-local dec     = (R("09")^1) / tonumber
-local period  = P(".")
-local unicode = P("uni")   * (hexfour * (period + P(-1)) * Cc(false) + Ct(hexfour^1) * Cc(true))
-local ucode   = P("u")     * (hexsix  * (period + P(-1)) * Cc(false) + Ct(hexsix ^1) * Cc(true))
-local index   = P("index") * dec * Cc(false)
-
-local parser  = unicode + ucode + index
-
-local parsers = { }
-
+local tonumber=tonumber
+local match,format,find,concat,gsub,lower=string.match,string.format,string.find,table.concat,string.gsub,string.lower
+local P,R,S,C,Ct,Cc,lpegmatch=lpeg.P,lpeg.R,lpeg.S,lpeg.C,lpeg.Ct,lpeg.Cc,lpeg.match
+local utfbyte=utf.byte
+local floor=math.floor
+local trace_loading=false trackers.register("fonts.loading",function(v) trace_loading=v end)
+local trace_mapping=false trackers.register("fonts.mapping",function(v) trace_unimapping=v end)
+local report_fonts=logs.reporter("fonts","loading") 
+local fonts=fonts
+local mappings=fonts.mappings or {}
+fonts.mappings=mappings
+local function loadlumtable(filename) 
+  local lumname=file.replacesuffix(file.basename(filename),"lum")
+  local lumfile=resolvers.findfile(lumname,"map") or ""
+  if lumfile~="" and lfs.isfile(lumfile) then
+    if trace_loading or trace_mapping then
+      report_fonts("enhance: loading %s ",lumfile)
+    end
+    lumunic=dofile(lumfile)
+    return lumunic,lumfile
+  end
+end
+local hex=R("AF","09")
+local hexfour=(hex*hex*hex*hex)/function(s) return tonumber(s,16) end
+local hexsix=(hex^1)/function(s) return tonumber(s,16) end
+local dec=(R("09")^1)/tonumber
+local period=P(".")
+local unicode=P("uni")*(hexfour*(period+P(-1))*Cc(false)+Ct(hexfour^1)*Cc(true))
+local ucode=P("u")*(hexsix*(period+P(-1))*Cc(false)+Ct(hexsix^1)*Cc(true))
+local index=P("index")*dec*Cc(false)
+local parser=unicode+ucode+index
+local parsers={}
 local function makenameparser(str)
-    if not str or str == "" then
-        return parser
-    else
-        local p = parsers[str]
-        if not p then
-            p = P(str) * period * dec * Cc(false)
-            parsers[str] = p
-        end
-        return p
+  if not str or str=="" then
+    return parser
+  else
+    local p=parsers[str]
+    if not p then
+      p=P(str)*period*dec*Cc(false)
+      parsers[str]=p
     end
+    return p
+  end
 end
-
--- local parser = mappings.makenameparser("Japan1")
--- local parser = mappings.makenameparser()
--- local function test(str)
---     local b, a = lpegmatch(parser,str)
---     print((a and table.serialize(b)) or b)
--- end
--- test("a.sc")
--- test("a")
--- test("uni1234")
--- test("uni1234.xx")
--- test("uni12349876")
--- test("index1234")
--- test("Japan1.123")
-
 local function tounicode16(unicode)
-    if unicode < 0x10000 then
-        return format("%04X",unicode)
-    elseif unicode < 0x1FFFFFFFFF then
-        return format("%04X%04X",floor(unicode/1024),unicode%1024+0xDC00)
-    else
-        report_fonts("can't convert %s into tounicode",unicode)
-    end
+  if unicode<0x10000 then
+    return format("%04X",unicode)
+  elseif unicode<0x1FFFFFFFFF then
+    return format("%04X%04X",floor(unicode/1024),unicode%1024+0xDC00)
+  else
+    report_fonts("can't convert %s into tounicode",unicode)
+  end
 end
-
 local function tounicode16sequence(unicodes)
-    local t = { }
-    for l=1,#unicodes do
-        local unicode = unicodes[l]
-        if unicode < 0x10000 then
-            t[l] = format("%04X",unicode)
-        elseif unicode < 0x1FFFFFFFFF then
-            t[l] = format("%04X%04X",floor(unicode/1024),unicode%1024+0xDC00)
-        else
-            report_fonts ("can't convert %s into tounicode",unicode)
-        end
-    end
-    return concat(t)
-end
-
-local function fromunicode16(str)
-    if #str == 4 then
-        return tonumber(str,16)
+  local t={}
+  for l=1,#unicodes do
+    local unicode=unicodes[l]
+    if unicode<0x10000 then
+      t[l]=format("%04X",unicode)
+    elseif unicode<0x1FFFFFFFFF then
+      t[l]=format("%04X%04X",floor(unicode/1024),unicode%1024+0xDC00)
     else
-        local l, r = match(str,"(....)(....)")
-        return (tonumber(l,16)- 0xD800)*0x400  + tonumber(r,16) - 0xDC00
+      report_fonts ("can't convert %s into tounicode",unicode)
     end
+  end
+  return concat(t)
 end
-
---~ This is quite a bit faster but at the cost of some memory but if we
---~ do this we will also use it elsewhere so let's not follow this route
---~ now. I might use this method in the plain variant (no caching there)
---~ but then I need a flag that distinguishes between code branches.
---~
---~ local cache = { }
---~
---~ function mappings.tounicode16(unicode)
---~     local s = cache[unicode]
---~     if not s then
---~         if unicode < 0x10000 then
---~             s = format("%04X",unicode)
---~         else
---~             s = format("%04X%04X",unicode/1024+0xD800,unicode%1024+0xDC00)
---~         end
---~         cache[unicode] = s
---~     end
---~     return s
---~ end
-
-mappings.loadlumtable        = loadlumtable
-mappings.makenameparser      = makenameparser
-mappings.tounicode16         = tounicode16
-mappings.tounicode16sequence = tounicode16sequence
-mappings.fromunicode16       = fromunicode16
-
-local separator   = S("_.")
-local other       = C((1 - separator)^1)
-local ligsplitter = Ct(other * (separator * other)^0)
-
---~ print(table.serialize(lpegmatch(ligsplitter,"this")))
---~ print(table.serialize(lpegmatch(ligsplitter,"this.that")))
---~ print(table.serialize(lpegmatch(ligsplitter,"japan1.123")))
---~ print(table.serialize(lpegmatch(ligsplitter,"such_so_more")))
---~ print(table.serialize(lpegmatch(ligsplitter,"such_so_more.that")))
-
+local function fromunicode16(str)
+  if #str==4 then
+    return tonumber(str,16)
+  else
+    local l,r=match(str,"(....)(....)")
+    return (tonumber(l,16)- 0xD800)*0x400+tonumber(r,16)-0xDC00
+  end
+end
+mappings.loadlumtable=loadlumtable
+mappings.makenameparser=makenameparser
+mappings.tounicode16=tounicode16
+mappings.tounicode16sequence=tounicode16sequence
+mappings.fromunicode16=fromunicode16
+local separator=S("_.")
+local other=C((1-separator)^1)
+local ligsplitter=Ct(other*(separator*other)^0)
 function mappings.addtounicode(data,filename)
-    local resources    = data.resources
-    local properties   = data.properties
-    local descriptions = data.descriptions
-    local unicodes     = resources.unicodes
-    if not unicodes then
-        return
-    end
-    -- we need to move this code
-    unicodes['space']  = unicodes['space']  or 32
-    unicodes['hyphen'] = unicodes['hyphen'] or 45
-    unicodes['zwj']    = unicodes['zwj']    or 0x200D
-    unicodes['zwnj']   = unicodes['zwnj']   or 0x200C
-    -- the tounicode mapping is sparse and only needed for alternatives
-    local private       = fonts.constructors.privateoffset
-    local unknown       = format("%04X",utfbyte("?"))
-    local unicodevector = fonts.encodings.agl.unicodes -- loaded runtime in context
-    local tounicode     = { }
-    local originals     = { }
-    resources.tounicode = tounicode
-    resources.originals = originals
-    local lumunic, uparser, oparser
-    local cidinfo, cidnames, cidcodes, usedmap
-    if false then -- will become an option
-        lumunic = loadlumtable(filename)
-        lumunic = lumunic and lumunic.tounicode
-    end
-    --
-    cidinfo = properties.cidinfo
-    usedmap = cidinfo and fonts.cid.getmap(cidinfo)
-    --
-    if usedmap then
-        oparser  = usedmap and makenameparser(cidinfo.ordering)
-        cidnames = usedmap.names
-        cidcodes = usedmap.unicodes
-    end
-    uparser = makenameparser()
-    local ns, nl = 0, 0
-    for unic, glyph in next, descriptions do
-        local index = glyph.index
-        local name  = glyph.name
-        if unic == -1 or unic >= private or (unic >= 0xE000 and unic <= 0xF8FF) or unic == 0xFFFE or unic == 0xFFFF then
-            local unicode = lumunic and lumunic[name] or unicodevector[name]
-            if unicode then
-                originals[index] = unicode
-                tounicode[index] = tounicode16(unicode)
-                ns               = ns + 1
-            end
-            -- cidmap heuristics, beware, there is no guarantee for a match unless
-            -- the chain resolves
-            if (not unicode) and usedmap then
-                local foundindex = lpegmatch(oparser,name)
-                if foundindex then
-                    unicode = cidcodes[foundindex] -- name to number
-                    if unicode then
-                        originals[index] = unicode
-                        tounicode[index] = tounicode16(unicode)
-                        ns               = ns + 1
-                    else
-                        local reference = cidnames[foundindex] -- number to name
-                        if reference then
-                            local foundindex = lpegmatch(oparser,reference)
-                            if foundindex then
-                                unicode = cidcodes[foundindex]
-                                if unicode then
-                                    originals[index] = unicode
-                                    tounicode[index] = tounicode16(unicode)
-                                    ns               = ns + 1
-                                end
-                            end
-                            if not unicode then
-                                local foundcodes, multiple = lpegmatch(uparser,reference)
-                                if foundcodes then
-                                    originals[index] = foundcodes
-                                    if multiple then
-                                        tounicode[index] = tounicode16sequence(foundcodes)
-                                        nl               = nl + 1
-                                        unicode          = true
-                                    else
-                                        tounicode[index] = tounicode16(foundcodes)
-                                        ns               = ns + 1
-                                        unicode          = foundcodes
-                                    end
-                                end
-                            end
-                        end
-                    end
-                end
-            end
-            -- a.whatever or a_b_c.whatever or a_b_c (no numbers)
-            if not unicode then
-                local split = lpegmatch(ligsplitter,name)
-                local nplit = split and #split or 0
-                if nplit >= 2 then
-                    local t, n = { }, 0
-                    for l=1,nplit do
-                        local base = split[l]
-                        local u = unicodes[base] or unicodevector[base]
-                        if not u then
-                            break
-                        elseif type(u) == "table" then
-                            n = n + 1
-                            t[n] = u[1]
-                        else
-                            n = n + 1
-                            t[n] = u
-                        end
-                    end
-                    if n == 0 then -- done then
-                        -- nothing
-                    elseif n == 1 then
-                        originals[index] = t[1]
-                        tounicode[index] = tounicode16(t[1])
-                    else
-                        originals[index] = t
-                        tounicode[index] = tounicode16sequence(t)
-                    end
-                    nl = nl + 1
-                    unicode = true
-                else
-                    -- skip: already checked and we don't want privates here
-                end
-            end
-            -- last resort (we might need to catch private here as well)
-            if not unicode then
-                local foundcodes, multiple = lpegmatch(uparser,name)
+  local resources=data.resources
+  local properties=data.properties
+  local descriptions=data.descriptions
+  local unicodes=resources.unicodes
+  if not unicodes then
+    return
+  end
+  unicodes['space']=unicodes['space'] or 32
+  unicodes['hyphen']=unicodes['hyphen'] or 45
+  unicodes['zwj']=unicodes['zwj']  or 0x200D
+  unicodes['zwnj']=unicodes['zwnj']  or 0x200C
+  local private=fonts.constructors.privateoffset
+  local unknown=format("%04X",utfbyte("?"))
+  local unicodevector=fonts.encodings.agl.unicodes 
+  local tounicode={}
+  local originals={}
+  resources.tounicode=tounicode
+  resources.originals=originals
+  local lumunic,uparser,oparser
+  local cidinfo,cidnames,cidcodes,usedmap
+  if false then 
+    lumunic=loadlumtable(filename)
+    lumunic=lumunic and lumunic.tounicode
+  end
+  cidinfo=properties.cidinfo
+  usedmap=cidinfo and fonts.cid.getmap(cidinfo)
+  if usedmap then
+    oparser=usedmap and makenameparser(cidinfo.ordering)
+    cidnames=usedmap.names
+    cidcodes=usedmap.unicodes
+  end
+  uparser=makenameparser()
+  local ns,nl=0,0
+  for unic,glyph in next,descriptions do
+    local index=glyph.index
+    local name=glyph.name
+    if unic==-1 or unic>=private or (unic>=0xE000 and unic<=0xF8FF) or unic==0xFFFE or unic==0xFFFF then
+      local unicode=lumunic and lumunic[name] or unicodevector[name]
+      if unicode then
+        originals[index]=unicode
+        tounicode[index]=tounicode16(unicode)
+        ns=ns+1
+      end
+      if (not unicode) and usedmap then
+        local foundindex=lpegmatch(oparser,name)
+        if foundindex then
+          unicode=cidcodes[foundindex] 
+          if unicode then
+            originals[index]=unicode
+            tounicode[index]=tounicode16(unicode)
+            ns=ns+1
+          else
+            local reference=cidnames[foundindex] 
+            if reference then
+              local foundindex=lpegmatch(oparser,reference)
+              if foundindex then
+                unicode=cidcodes[foundindex]
+                if unicode then
+                  originals[index]=unicode
+                  tounicode[index]=tounicode16(unicode)
+                  ns=ns+1
+                end
+              end
+              if not unicode then
+                local foundcodes,multiple=lpegmatch(uparser,reference)
                 if foundcodes then
-                    if multiple then
-                        originals[index] = foundcodes
-                        tounicode[index] = tounicode16sequence(foundcodes)
-                        nl               = nl + 1
-                        unicode          = true
-                    else
-                        originals[index] = foundcodes
-                        tounicode[index] = tounicode16(foundcodes)
-                        ns               = ns + 1
-                        unicode          = foundcodes
-                    end
-                end
-            end
-         -- if not unicode then
-         --     originals[index] = 0xFFFD
-         --     tounicode[index] = "FFFD"
-         -- end
-        end
-    end
-    if trace_mapping then
-        for unic, glyph in table.sortedhash(descriptions) do
-            local name  = glyph.name
-            local index = glyph.index
-            local toun  = tounicode[index]
-            if toun then
-                report_fonts("internal: 0x%05X, name: %s, unicode: U+%05X, tounicode: %s",index,name,unic,toun)
+                  originals[index]=foundcodes
+                  if multiple then
+                    tounicode[index]=tounicode16sequence(foundcodes)
+                    nl=nl+1
+                    unicode=true
+                  else
+                    tounicode[index]=tounicode16(foundcodes)
+                    ns=ns+1
+                    unicode=foundcodes
+                  end
+                end
+              end
+            end
+          end
+        end
+      end
+      if not unicode then
+        local split=lpegmatch(ligsplitter,name)
+        local nplit=split and #split or 0
+        if nplit>=2 then
+          local t,n={},0
+          for l=1,nplit do
+            local base=split[l]
+            local u=unicodes[base] or unicodevector[base]
+            if not u then
+              break
+            elseif type(u)=="table" then
+              n=n+1
+              t[n]=u[1]
             else
-                report_fonts("internal: 0x%05X, name: %s, unicode: U+%05X",index,name,unic)
-            end
+              n=n+1
+              t[n]=u
+            end
+          end
+          if n==0 then
+          elseif n==1 then
+            originals[index]=t[1]
+            tounicode[index]=tounicode16(t[1])
+          else
+            originals[index]=t
+            tounicode[index]=tounicode16sequence(t)
+          end
+          nl=nl+1
+          unicode=true
+        else
         end
-    end
-    if trace_loading and (ns > 0 or nl > 0) then
-        report_fonts("enhance: %s tounicode entries added (%s ligatures)",nl+ns, ns)
-    end
+      end
+      if not unicode then
+        local foundcodes,multiple=lpegmatch(uparser,name)
+        if foundcodes then
+          if multiple then
+            originals[index]=foundcodes
+            tounicode[index]=tounicode16sequence(foundcodes)
+            nl=nl+1
+            unicode=true
+          else
+            originals[index]=foundcodes
+            tounicode[index]=tounicode16(foundcodes)
+            ns=ns+1
+            unicode=foundcodes
+          end
+        end
+      end
+    end
+  end
+  if trace_mapping then
+    for unic,glyph in table.sortedhash(descriptions) do
+      local name=glyph.name
+      local index=glyph.index
+      local toun=tounicode[index]
+      if toun then
+        report_fonts("internal: 0x%05X, name: %s, unicode: U+%05X, tounicode: %s",index,name,unic,toun)
+      else
+        report_fonts("internal: 0x%05X, name: %s, unicode: U+%05X",index,name,unic)
+      end
+    end
+  end
+  if trace_loading and (ns>0 or nl>0) then
+    report_fonts("enhance: %s tounicode entries added (%s ligatures)",nl+ns,ns)
+  end
 end
 
 end -- closure
 
 do -- begin closure to overcome local limits and interference
 
-if not modules then modules = { } end modules ['luatex-fonts-syn'] = {
-    version   = 1.001,
-    comment   = "companion to luatex-*.tex",
-    author    = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
-    copyright = "PRAGMA ADE / ConTeXt Development Team",
-    license   = "see context related readme files"
+if not modules then modules={} end modules ['luatex-fonts-syn']={
+  version=1.001,
+  comment="companion to luatex-*.tex",
+  author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+  copyright="PRAGMA ADE / ConTeXt Development Team",
+  license="see context related readme files"
 }
-
 if context then
-    texio.write_nl("fatal error: this module is not for context")
-    os.exit()
-end
-
--- Generic font names support.
---
--- Watch out, the version number is the same as the one used in
--- the mtx-fonts.lua function scripts.fonts.names as we use a
--- simplified font database in the plain solution and by using
--- a different number we're less dependent on context.
---
--- mtxrun --script font --reload --simple
---
--- The format of the file is as follows:
---
--- return {
---     ["version"]  = 1.001,
---     ["mappings"] = {
---         ["somettcfontone"] = { "Some TTC Font One", "SomeFontA.ttc", 1 },
---         ["somettcfonttwo"] = { "Some TTC Font Two", "SomeFontA.ttc", 2 },
---         ["somettffont"]    = { "Some TTF Font",     "SomeFontB.ttf"    },
---         ["someotffont"]    = { "Some OTF Font",     "SomeFontC.otf"    },
---     },
--- }
-
-local fonts = fonts
-fonts.names = fonts.names or { }
-
-fonts.names.version    = 1.001 -- not the same as in context
-fonts.names.basename   = "luatex-fonts-names.lua"
-fonts.names.new_to_old = { }
-fonts.names.old_to_new = { }
-
-local data, loaded = nil, false
-
-local fileformats = { "lua", "tex", "other text files" }
-
+  texio.write_nl("fatal error: this module is not for context")
+  os.exit()
+end
+local fonts=fonts
+fonts.names=fonts.names or {}
+fonts.names.version=1.001 
+fonts.names.basename="luatex-fonts-names.lua"
+fonts.names.new_to_old={}
+fonts.names.old_to_new={}
+local data,loaded=nil,false
+local fileformats={ "lua","tex","other text files" }
 function fonts.names.resolve(name,sub)
-    if not loaded then
-        local basename = fonts.names.basename
-        if basename and basename ~= "" then
-            for i=1,#fileformats do
-                local format = fileformats[i]
-                local foundname = resolvers.findfile(basename,format) or ""
-                if foundname ~= "" then
-                    data = dofile(foundname)
-                    texio.write("<font database loaded: ",foundname,">")
-                    break
-                end
-            end
-        end
-        loaded = true
-    end
-    if type(data) == "table" and data.version == fonts.names.version then
-        local condensed = string.gsub(string.lower(name),"[^%a%d]","")
-        local found = data.mappings and data.mappings[condensed]
-        if found then
-            local fontname, filename, subfont = found[1], found[2], found[3]
-            if subfont then
-                return filename, fontname
-            else
-                return filename, false
-            end
-        else
-            return name, false -- fallback to filename
-        end
+  if not loaded then
+    local basename=fonts.names.basename
+    if basename and basename~="" then
+      for i=1,#fileformats do
+        local format=fileformats[i]
+        local foundname=resolvers.findfile(basename,format) or ""
+        if foundname~="" then
+          data=dofile(foundname)
+          texio.write("<font database loaded: ",foundname,">")
+          break
+        end
+      end
+    end
+    loaded=true
+  end
+  if type(data)=="table" and data.version==fonts.names.version then
+    local condensed=string.gsub(string.lower(name),"[^%a%d]","")
+    local found=data.mappings and data.mappings[condensed]
+    if found then
+      local fontname,filename,subfont=found[1],found[2],found[3]
+      if subfont then
+        return filename,fontname
+      else
+        return filename,false
+      end
+    else
+      return name,false 
     end
+  end
 end
-
-fonts.names.resolvespec = fonts.names.resolve -- only supported in mkiv
-
-function fonts.names.getfilename(askedname,suffix)  -- only supported in mkiv
-    return ""
+fonts.names.resolvespec=fonts.names.resolve 
+function fonts.names.getfilename(askedname,suffix) 
+  return ""
 end
 
 end -- closure
 
 do -- begin closure to overcome local limits and interference
 
-if not modules then modules = { } end modules ['luatex-fonts-tfm'] = {
-    version   = 1.001,
-    comment   = "companion to luatex-*.tex",
-    author    = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
-    copyright = "PRAGMA ADE / ConTeXt Development Team",
-    license   = "see context related readme files"
+if not modules then modules={} end modules ['luatex-fonts-tfm']={
+  version=1.001,
+  comment="companion to luatex-*.tex",
+  author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+  copyright="PRAGMA ADE / ConTeXt Development Team",
+  license="see context related readme files"
 }
-
 if context then
-    texio.write_nl("fatal error: this module is not for context")
-    os.exit()
+  texio.write_nl("fatal error: this module is not for context")
+  os.exit()
 end
-
-local fonts        = fonts
-local tfm          = { }
-fonts.handlers.tfm = tfm
-fonts.formats.tfm  = "type1" -- we need to have at least a value here
-
+local fonts=fonts
+local tfm={}
+fonts.handlers.tfm=tfm
+fonts.formats.tfm="type1" 
 function fonts.readers.tfm(specification)
-    local fullname = specification.filename or ""
-    if fullname == "" then
-        local forced = specification.forced or ""
-        if forced ~= "" then
-            fullname = specification.name .. "." .. forced
-        else
-            fullname = specification.name
-        end
-    end
-    local foundname = resolvers.findbinfile(fullname, 'tfm') or ""
-    if foundname == "" then
-        foundname = resolvers.findbinfile(fullname, 'ofm') or ""
-    end
-    if foundname ~= "" then
-        specification.filename = foundname
-        specification.format   = "ofm"
-        return font.read_tfm(specification.filename,specification.size)
+  local fullname=specification.filename or ""
+  if fullname=="" then
+    local forced=specification.forced or ""
+    if forced~="" then
+      fullname=specification.name.."."..forced
+    else
+      fullname=specification.name
     end
+  end
+  local foundname=resolvers.findbinfile(fullname,'tfm') or ""
+  if foundname=="" then
+    foundname=resolvers.findbinfile(fullname,'ofm') or ""
+  end
+  if foundname~="" then
+    specification.filename=foundname
+    specification.format="ofm"
+    return font.read_tfm(specification.filename,specification.size)
+  end
 end
 
 end -- closure
 
 do -- begin closure to overcome local limits and interference
 
-if not modules then modules = { } end modules ['font-oti'] = {
-    version   = 1.001,
-    comment   = "companion to font-ini.mkiv",
-    author    = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
-    copyright = "PRAGMA ADE / ConTeXt Development Team",
-    license   = "see context related readme files"
+if not modules then modules={} end modules ['font-oti']={
+  version=1.001,
+  comment="companion to font-ini.mkiv",
+  author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+  copyright="PRAGMA ADE / ConTeXt Development Team",
+  license="see context related readme files"
 }
-
-local lower = string.lower
-
-local fonts              = fonts
-local constructors       = fonts.constructors
-
-local otf                = constructors.newhandler("otf")
-local otffeatures        = constructors.newfeatures("otf")
-local otftables          = otf.tables
-local registerotffeature = otffeatures.register
-
-local allocate           = utilities.storage.allocate
-
+local lower=string.lower
+local fonts=fonts
+local constructors=fonts.constructors
+local otf=constructors.newhandler("otf")
+local otffeatures=constructors.newfeatures("otf")
+local otftables=otf.tables
+local registerotffeature=otffeatures.register
+local allocate=utilities.storage.allocate
 registerotffeature {
-    name        = "features",
-    description = "initialization of feature handler",
-    default     = true,
+  name="features",
+  description="initialization of feature handler",
+  default=true,
 }
-
--- these are later hooked into node and base initializaters
-
 local function setmode(tfmdata,value)
-    if value then
-        tfmdata.properties.mode = lower(value)
-    end
+  if value then
+    tfmdata.properties.mode=lower(value)
+  end
 end
-
 local function setlanguage(tfmdata,value)
-    if value then
-        local cleanvalue = lower(value)
-        local languages  = otftables and otftables.languages
-        local properties = tfmdata.properties
-        if not languages then
-            properties.language = cleanvalue
-        elseif languages[value] then
-            properties.language = cleanvalue
-        else
-            properties.language = "dflt"
-        end
+  if value then
+    local cleanvalue=lower(value)
+    local languages=otftables and otftables.languages
+    local properties=tfmdata.properties
+    if not languages then
+      properties.language=cleanvalue
+    elseif languages[value] then
+      properties.language=cleanvalue
+    else
+      properties.language="dflt"
     end
+  end
 end
-
 local function setscript(tfmdata,value)
-    if value then
-        local cleanvalue = lower(value)
-        local scripts    = otftables and otftables.scripts
-        local properties = tfmdata.properties
-        if not scripts then
-            properties.script = cleanvalue
-        elseif scripts[value] then
-            properties.script = cleanvalue
-        else
-            properties.script = "dflt"
-        end
+  if value then
+    local cleanvalue=lower(value)
+    local scripts=otftables and otftables.scripts
+    local properties=tfmdata.properties
+    if not scripts then
+      properties.script=cleanvalue
+    elseif scripts[value] then
+      properties.script=cleanvalue
+    else
+      properties.script="dflt"
     end
+  end
 end
-
 registerotffeature {
-    name        = "mode",
-    description = "mode",
-    initializers = {
-        base = setmode,
-        node = setmode,
-    }
+  name="mode",
+  description="mode",
+  initializers={
+    base=setmode,
+    node=setmode,
+  }
 }
-
 registerotffeature {
-    name         = "language",
-    description  = "language",
-    initializers = {
-        base = setlanguage,
-        node = setlanguage,
-    }
+  name="language",
+  description="language",
+  initializers={
+    base=setlanguage,
+    node=setlanguage,
+  }
 }
-
 registerotffeature {
-    name        = "script",
-    description = "script",
-    initializers = {
-        base = setscript,
-        node = setscript,
-    }
+  name="script",
+  description="script",
+  initializers={
+    base=setscript,
+    node=setscript,
+  }
 }
 
-
 end -- closure
 
 do -- begin closure to overcome local limits and interference
 
-if not modules then modules = { } end modules ['font-otf'] = {
-    version   = 1.001,
-    comment   = "companion to font-ini.mkiv",
-    author    = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
-    copyright = "PRAGMA ADE / ConTeXt Development Team",
-    license   = "see context related readme files"
+if not modules then modules={} end modules ['font-otf']={
+  version=1.001,
+  comment="companion to font-ini.mkiv",
+  author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+  copyright="PRAGMA ADE / ConTeXt Development Team",
+  license="see context related readme files"
 }
-
--- langs -> languages enz
--- anchor_classes vs kernclasses
--- modification/creationtime in subfont is runtime dus zinloos
--- to_table -> totable
--- ascent descent
-
--- more checking against low level calls of functions
-
-local utfbyte = utf.byte
-local format, gmatch, gsub, find, match, lower, strip = string.format, string.gmatch, string.gsub, string.find, string.match, string.lower, string.strip
-local type, next, tonumber, tostring = type, next, tonumber, tostring
-local abs = math.abs
-local getn = table.getn
-local lpegmatch = lpeg.match
-local reversed, concat, remove = table.reversed, table.concat, table.remove
-local ioflush = io.flush
-local fastcopy, tohash, derivetable = table.fastcopy, table.tohash, table.derive
-
-local allocate           = utilities.storage.allocate
-local registertracker    = trackers.register
-local registerdirective  = directives.register
-local starttiming        = statistics.starttiming
-local stoptiming         = statistics.stoptiming
-local elapsedtime        = statistics.elapsedtime
-local findbinfile        = resolvers.findbinfile
-
-local trace_private      = false  registertracker("otf.private",    function(v) trace_private   = v end)
-local trace_loading      = false  registertracker("otf.loading",    function(v) trace_loading   = v end)
-local trace_features     = false  registertracker("otf.features",   function(v) trace_features  = v end)
-local trace_dynamics     = false  registertracker("otf.dynamics",   function(v) trace_dynamics  = v end)
-local trace_sequences    = false  registertracker("otf.sequences",  function(v) trace_sequences = v end)
-local trace_markwidth    = false  registertracker("otf.markwidth",  function(v) trace_markwidth = v end)
-local trace_defining     = false  registertracker("fonts.defining", function(v) trace_defining  = v end)
-
-local report_otf         = logs.reporter("fonts","otf loading")
-
-local fonts              = fonts
-local otf                = fonts.handlers.otf
-
-otf.glists               = { "gsub", "gpos" }
-
-otf.version              = 2.741 -- beware: also sync font-mis.lua
-otf.cache                = containers.define("fonts", "otf", otf.version, true)
-
-local fontdata           = fonts.hashes.identifiers
-local chardata           = characters and characters.data -- not used
-
-local otffeatures        = fonts.constructors.newfeatures("otf")
-local registerotffeature = otffeatures.register
-
-local enhancers          = allocate()
-otf.enhancers            = enhancers
-local patches            = { }
-enhancers.patches        = patches
-
-local definers           = fonts.definers
-local readers            = fonts.readers
-local constructors       = fonts.constructors
-
-local forceload          = false
-local cleanup            = 0     -- mk: 0=885M 1=765M 2=735M (regular run 730M)
-local usemetatables      = false -- .4 slower on mk but 30 M less mem so we might change the default -- will be directive
-local packdata           = true
-local syncspace          = true
-local forcenotdef        = false
-
-local wildcard           = "*"
-local default            = "dflt"
-
-local fontloaderfields   = fontloader.fields
-local mainfields         = nil
-local glyphfields        = nil -- not used yet
-
-registerdirective("fonts.otf.loader.cleanup",       function(v) cleanup       = tonumber(v) or (v and 1) or 0 end)
-registerdirective("fonts.otf.loader.force",         function(v) forceload     = v end)
-registerdirective("fonts.otf.loader.usemetatables", function(v) usemetatables = v end)
-registerdirective("fonts.otf.loader.pack",          function(v) packdata      = v end)
-registerdirective("fonts.otf.loader.syncspace",     function(v) syncspace     = v end)
-registerdirective("fonts.otf.loader.forcenotdef",   function(v) forcenotdef   = v end)
-
+local utfbyte=utf.byte
+local format,gmatch,gsub,find,match,lower,strip=string.format,string.gmatch,string.gsub,string.find,string.match,string.lower,string.strip
+local type,next,tonumber,tostring=type,next,tonumber,tostring
+local abs=math.abs
+local getn=table.getn
+local lpegmatch=lpeg.match
+local reversed,concat,remove=table.reversed,table.concat,table.remove
+local ioflush=io.flush
+local fastcopy,tohash,derivetable=table.fastcopy,table.tohash,table.derive
+local allocate=utilities.storage.allocate
+local registertracker=trackers.register
+local registerdirective=directives.register
+local starttiming=statistics.starttiming
+local stoptiming=statistics.stoptiming
+local elapsedtime=statistics.elapsedtime
+local findbinfile=resolvers.findbinfile
+local trace_private=false registertracker("otf.private",function(v) trace_private=v end)
+local trace_loading=false registertracker("otf.loading",function(v) trace_loading=v end)
+local trace_features=false registertracker("otf.features",function(v) trace_features=v end)
+local trace_dynamics=false registertracker("otf.dynamics",function(v) trace_dynamics=v end)
+local trace_sequences=false registertracker("otf.sequences",function(v) trace_sequences=v end)
+local trace_markwidth=false registertracker("otf.markwidth",function(v) trace_markwidth=v end)
+local trace_defining=false registertracker("fonts.defining",function(v) trace_defining=v end)
+local report_otf=logs.reporter("fonts","otf loading")
+local fonts=fonts
+local otf=fonts.handlers.otf
+otf.glists={ "gsub","gpos" }
+otf.version=2.741 
+otf.cache=containers.define("fonts","otf",otf.version,true)
+local fontdata=fonts.hashes.identifiers
+local chardata=characters and characters.data 
+local otffeatures=fonts.constructors.newfeatures("otf")
+local registerotffeature=otffeatures.register
+local enhancers=allocate()
+otf.enhancers=enhancers
+local patches={}
+enhancers.patches=patches
+local definers=fonts.definers
+local readers=fonts.readers
+local constructors=fonts.constructors
+local forceload=false
+local cleanup=0   
+local usemetatables=false 
+local packdata=true
+local syncspace=true
+local forcenotdef=false
+local wildcard="*"
+local default="dflt"
+local fontloaderfields=fontloader.fields
+local mainfields=nil
+local glyphfields=nil 
+registerdirective("fonts.otf.loader.cleanup",function(v) cleanup=tonumber(v) or (v and 1) or 0 end)
+registerdirective("fonts.otf.loader.force",function(v) forceload=v end)
+registerdirective("fonts.otf.loader.usemetatables",function(v) usemetatables=v end)
+registerdirective("fonts.otf.loader.pack",function(v) packdata=v end)
+registerdirective("fonts.otf.loader.syncspace",function(v) syncspace=v end)
+registerdirective("fonts.otf.loader.forcenotdef",function(v) forcenotdef=v end)
 local function load_featurefile(raw,featurefile)
-    if featurefile and featurefile ~= "" then
-        if trace_loading then
-            report_otf("featurefile: %s", featurefile)
-        end
-        fontloader.apply_featurefile(raw, featurefile)
+  if featurefile and featurefile~="" then
+    if trace_loading then
+      report_otf("featurefile: %s",featurefile)
     end
+    fontloader.apply_featurefile(raw,featurefile)
+  end
 end
-
 local function showfeatureorder(rawdata,filename)
-    local sequences = rawdata.resources.sequences
-    if sequences and #sequences > 0 then
-        if trace_loading then
-            report_otf("font %s has %s sequences",filename,#sequences)
-            report_otf(" ")
-        end
-        for nos=1,#sequences do
-            local sequence  = sequences[nos]
-            local typ       = sequence.type      or "no-type"
-            local name      = sequence.name      or "no-name"
-            local subtables = sequence.subtables or { "no-subtables" }
-            local features  = sequence.features
+  local sequences=rawdata.resources.sequences
+  if sequences and #sequences>0 then
+    if trace_loading then
+      report_otf("font %s has %s sequences",filename,#sequences)
+      report_otf(" ")
+    end
+    for nos=1,#sequences do
+      local sequence=sequences[nos]
+      local typ=sequence.type   or "no-type"
+      local name=sequence.name   or "no-name"
+      local subtables=sequence.subtables or { "no-subtables" }
+      local features=sequence.features
+      if trace_loading then
+        report_otf("%3i  %-15s  %-20s  [%s]",nos,name,typ,concat(subtables,","))
+      end
+      if features then
+        for feature,scripts in next,features do
+          local tt={}
+          if type(scripts)=="table" then
+            for script,languages in next,scripts do
+              local ttt={}
+              for language,_ in next,languages do
+                ttt[#ttt+1]=language
+              end
+              tt[#tt+1]=format("[%s: %s]",script,concat(ttt," "))
+            end
             if trace_loading then
-                report_otf("%3i  %-15s  %-20s  [%s]",nos,name,typ,concat(subtables,","))
+              report_otf("       %s: %s",feature,concat(tt," "))
             end
-            if features then
-                for feature, scripts in next, features do
-                    local tt = { }
-                    if type(scripts) == "table" then
-                        for script, languages in next, scripts do
-                            local ttt = { }
-                            for language, _ in next, languages do
-                                ttt[#ttt+1] = language
-                            end
-                            tt[#tt+1] = format("[%s: %s]",script,concat(ttt," "))
-                        end
-                        if trace_loading then
-                            report_otf("       %s: %s",feature,concat(tt," "))
-                        end
-                    else
-                        if trace_loading then
-                            report_otf("       %s: %s",feature,tostring(scripts))
-                        end
-                    end
-                end
+          else
+            if trace_loading then
+              report_otf("       %s: %s",feature,tostring(scripts))
             end
+          end
         end
-        if trace_loading then
-            report_otf("\n")
-        end
-    elseif trace_loading then
-        report_otf("font %s has no sequences",filename)
+      end
     end
-end
-
---[[ldx--
-<p>We start with a lot of tables and related functions.</p>
---ldx]]--
-
-local valid_fields = table.tohash {
- -- "anchor_classes",
-    "ascent",
- -- "cache_version",
-    "cidinfo",
-    "copyright",
- -- "creationtime",
-    "descent",
-    "design_range_bottom",
-    "design_range_top",
-    "design_size",
-    "encodingchanged",
-    "extrema_bound",
-    "familyname",
-    "fontname",
-    "fontname",
-    "fontstyle_id",
-    "fontstyle_name",
-    "fullname",
- -- "glyphs",
-    "hasvmetrics",
- -- "head_optimized_for_cleartype",
-    "horiz_base",
-    "issans",
-    "isserif",
-    "italicangle",
- -- "kerns",
- -- "lookups",
-    "macstyle",
- -- "modificationtime",
-    "onlybitmaps",
-    "origname",
-    "os2_version",
-    "pfminfo",
- -- "private",
-    "serifcheck",
-    "sfd_version",
- -- "size",
-    "strokedfont",
-    "strokewidth",
- -- "subfonts",
-    "table_version",
- -- "tables",
- -- "ttf_tab_saved",
-    "ttf_tables",
-    "uni_interp",
-    "uniqueid",
-    "units_per_em",
-    "upos",
-    "use_typo_metrics",
-    "uwidth",
- -- "validation_state",
-    "version",
-    "vert_base",
-    "weight",
-    "weight_width_slope_only",
- -- "xuid",
+    if trace_loading then
+      report_otf("\n")
+    end
+  elseif trace_loading then
+    report_otf("font %s has no sequences",filename)
+  end
+end
+local valid_fields=table.tohash {
+  "ascent",
+  "cidinfo",
+  "copyright",
+  "descent",
+  "design_range_bottom",
+  "design_range_top",
+  "design_size",
+  "encodingchanged",
+  "extrema_bound",
+  "familyname",
+  "fontname",
+  "fontname",
+  "fontstyle_id",
+  "fontstyle_name",
+  "fullname",
+  "hasvmetrics",
+  "horiz_base",
+  "issans",
+  "isserif",
+  "italicangle",
+  "macstyle",
+  "onlybitmaps",
+  "origname",
+  "os2_version",
+  "pfminfo",
+  "serifcheck",
+  "sfd_version",
+  "strokedfont",
+  "strokewidth",
+  "table_version",
+  "ttf_tables",
+  "uni_interp",
+  "uniqueid",
+  "units_per_em",
+  "upos",
+  "use_typo_metrics",
+  "uwidth",
+  "version",
+  "vert_base",
+  "weight",
+  "weight_width_slope_only",
 }
-
-local ordered_enhancers = {
-    "prepare tables",
-    "prepare glyphs",
-    "prepare lookups",
-
-    "analyze glyphs",
-    "analyze math",
-
-    "prepare tounicode", -- maybe merge with prepare
-
-    "reorganize lookups",
-    "reorganize mark classes",
-    "reorganize anchor classes",
-
-    "reorganize glyph kerns",
-    "reorganize glyph lookups",
-    "reorganize glyph anchors",
-
-    "merge kern classes",
-
-    "reorganize features",
-    "reorganize subtables",
-
-    "check glyphs",
-    "check metadata",
-    "check extra features", -- after metadata
-
-    "add duplicates",
-    "check encoding",
-
-    "cleanup tables",
+local ordered_enhancers={
+  "prepare tables",
+  "prepare glyphs",
+  "prepare lookups",
+  "analyze glyphs",
+  "analyze math",
+  "prepare tounicode",
+  "reorganize lookups",
+  "reorganize mark classes",
+  "reorganize anchor classes",
+  "reorganize glyph kerns",
+  "reorganize glyph lookups",
+  "reorganize glyph anchors",
+  "merge kern classes",
+  "reorganize features",
+  "reorganize subtables",
+  "check glyphs",
+  "check metadata",
+  "check extra features",
+  "add duplicates",
+  "check encoding",
+  "cleanup tables",
 }
-
---[[ldx--
-<p>Here we go.</p>
---ldx]]--
-
-local actions  = allocate()
-local before   = allocate()
-local after    = allocate()
-
-patches.before = before
-patches.after  = after
-
+local actions=allocate()
+local before=allocate()
+local after=allocate()
+patches.before=before
+patches.after=after
 local function enhance(name,data,filename,raw)
-    local enhancer = actions[name]
-    if enhancer then
-        if trace_loading then
-            report_otf("enhance: %s (%s)",name,filename)
-            ioflush()
-        end
-        enhancer(data,filename,raw)
-    elseif trace_loading then
-     -- report_otf("enhance: %s is undefined",name)
+  local enhancer=actions[name]
+  if enhancer then
+    if trace_loading then
+      report_otf("enhance: %s (%s)",name,filename)
+      ioflush()
     end
+    enhancer(data,filename,raw)
+  elseif trace_loading then
+  end
 end
-
 function enhancers.apply(data,filename,raw)
-    local basename = file.basename(lower(filename))
-    if trace_loading then
-        report_otf("start enhancing: %s",filename)
-    end
-    ioflush() -- we want instant messages
-    for e=1,#ordered_enhancers do
-        local enhancer = ordered_enhancers[e]
-        local b = before[enhancer]
-        if b then
-            for pattern, action in next, b do
-                if find(basename,pattern) then
-                    action(data,filename,raw)
-                end
-            end
-        end
-        enhance(enhancer,data,filename,raw)
-        local a = after[enhancer]
-        if a then
-            for pattern, action in next, a do
-                if find(basename,pattern) then
-                    action(data,filename,raw)
-                end
-            end
-        end
-        ioflush() -- we want instant messages
-    end
-    if trace_loading then
-        report_otf("stop enhancing")
-    end
-    ioflush() -- we want instant messages
+  local basename=file.basename(lower(filename))
+  if trace_loading then
+    report_otf("start enhancing: %s",filename)
+  end
+  ioflush() 
+  for e=1,#ordered_enhancers do
+    local enhancer=ordered_enhancers[e]
+    local b=before[enhancer]
+    if b then
+      for pattern,action in next,b do
+        if find(basename,pattern) then
+          action(data,filename,raw)
+        end
+      end
+    end
+    enhance(enhancer,data,filename,raw)
+    local a=after[enhancer]
+    if a then
+      for pattern,action in next,a do
+        if find(basename,pattern) then
+          action(data,filename,raw)
+        end
+      end
+    end
+    ioflush() 
+  end
+  if trace_loading then
+    report_otf("stop enhancing")
+  end
+  ioflush() 
 end
-
--- patches.register("before","migrate metadata","cambria",function() end)
-
 function patches.register(what,where,pattern,action)
-    local pw = patches[what]
-    if pw then
-        local ww = pw[where]
-        if ww then
-            ww[pattern] = action
-        else
-            pw[where] = { [pattern] = action}
-        end
+  local pw=patches[what]
+  if pw then
+    local ww=pw[where]
+    if ww then
+      ww[pattern]=action
+    else
+      pw[where]={ [pattern]=action}
     end
+  end
 end
-
 function patches.report(fmt,...)
-    if trace_loading then
-        report_otf("patching: " ..fmt,...)
-    end
+  if trace_loading then
+    report_otf("patching: "..fmt,...)
+  end
 end
-
-function enhancers.register(what,action) -- only already registered can be overloaded
-    actions[what] = action
+function enhancers.register(what,action) 
+  actions[what]=action
 end
-
 function otf.load(filename,format,sub,featurefile)
-    local name = file.basename(file.removesuffix(filename))
-    local attr = lfs.attributes(filename)
-    local size = attr and attr.size or 0
-    local time = attr and attr.modification or 0
-    if featurefile then
-        name = name .. "@" .. file.removesuffix(file.basename(featurefile))
+  local name=file.basename(file.removesuffix(filename))
+  local attr=lfs.attributes(filename)
+  local size=attr and attr.size or 0
+  local time=attr and attr.modification or 0
+  if featurefile then
+    name=name.."@"..file.removesuffix(file.basename(featurefile))
+  end
+  if sub=="" then
+    sub=false
+  end
+  local hash=name
+  if sub then
+    hash=hash.."-"..sub
+  end
+  hash=containers.cleanname(hash)
+  local featurefiles
+  if featurefile then
+    featurefiles={}
+    for s in gmatch(featurefile,"[^,]+") do
+      local name=resolvers.findfile(file.addsuffix(s,'fea'),'fea') or ""
+      if name=="" then
+        report_otf("loading: no featurefile '%s'",s)
+      else
+        local attr=lfs.attributes(name)
+        featurefiles[#featurefiles+1]={
+          name=name,
+          size=attr and attr.size or 0,
+          time=attr and attr.modification or 0,
+        }
+      end
+    end
+    if #featurefiles==0 then
+      featurefiles=nil
+    end
+  end
+  local data=containers.read(otf.cache,hash)
+  local reload=not data or data.size~=size or data.time~=time
+  if forceload then
+    report_otf("loading: forced reload due to hard coded flag")
+    reload=true
+  end
+  if not reload then
+    local featuredata=data.featuredata
+    if featurefiles then
+      if not featuredata or #featuredata~=#featurefiles then
+        reload=true
+      else
+        for i=1,#featurefiles do
+          local fi,fd=featurefiles[i],featuredata[i]
+          if fi.name~=fd.name or fi.size~=fd.size or fi.time~=fd.time then
+            reload=true
+            break
+          end
+        end
+      end
+    elseif featuredata then
+      reload=true
     end
-    if sub == "" then
-        sub = false
+    if reload then
+      report_otf("loading: forced reload due to changed featurefile specification: %s",featurefile or "--")
     end
-    local hash = name
+   end
+   if reload then
+    report_otf("loading: %s (hash: %s)",filename,hash)
+    local fontdata,messages
     if sub then
-        hash = hash .. "-" .. sub
-    end
-    hash = containers.cleanname(hash)
-    local featurefiles
-    if featurefile then
-        featurefiles = { }
-        for s in gmatch(featurefile,"[^,]+") do
-            local name = resolvers.findfile(file.addsuffix(s,'fea'),'fea') or ""
-            if name == "" then
-                report_otf("loading: no featurefile '%s'",s)
-            else
-                local attr = lfs.attributes(name)
-                featurefiles[#featurefiles+1] = {
-                    name = name,
-                    size = attr and attr.size or 0,
-                    time = attr and attr.modification or 0,
-                }
-            end
-        end
-        if #featurefiles == 0 then
-            featurefiles = nil
-        end
-    end
-    local data = containers.read(otf.cache,hash)
-    local reload = not data or data.size ~= size or data.time ~= time
-    if forceload then
-        report_otf("loading: forced reload due to hard coded flag")
-        reload = true
+      fontdata,messages=fontloader.open(filename,sub)
+    else
+      fontdata,messages=fontloader.open(filename)
     end
-    if not reload then
-        local featuredata = data.featuredata
-        if featurefiles then
-            if not featuredata or #featuredata ~= #featurefiles then
-                reload = true
-            else
-                for i=1,#featurefiles do
-                    local fi, fd = featurefiles[i], featuredata[i]
-                    if fi.name ~= fd.name or fi.size ~= fd.size or fi.time ~= fd.time then
-                        reload = true
-                        break
-                    end
-                end
-            end
-        elseif featuredata then
-            reload = true
-        end
-        if reload then
-           report_otf("loading: forced reload due to changed featurefile specification: %s",featurefile or "--")
-        end
-     end
-     if reload then
-        report_otf("loading: %s (hash: %s)",filename,hash)
-        local fontdata, messages
-        if sub then
-            fontdata, messages = fontloader.open(filename,sub)
-        else
-            fontdata, messages = fontloader.open(filename)
-        end
-        if fontdata then
-            mainfields = mainfields or (fontloaderfields and fontloaderfields(fontdata))
-        end
-        if trace_loading and messages and #messages > 0 then
-            if type(messages) == "string" then
-                report_otf("warning: %s",messages)
-            else
-                for m=1,#messages do
-                    report_otf("warning: %s",tostring(messages[m]))
-                end
-            end
-        else
-            report_otf("font loaded okay")
-        end
-        if fontdata then
-            if featurefiles then
-                for i=1,#featurefiles do
-                    load_featurefile(fontdata,featurefiles[i].name)
-                end
-            end
-            local unicodes = {
-                -- names to unicodes
-            }
-            local splitter = lpeg.splitter(" ",unicodes)
-            data = {
-                size        = size,
-                time        = time,
-                format      = format,
-                featuredata = featurefiles,
-                resources   = {
-                    filename = resolvers.unresolve(filename), -- no shortcut
-                    version  = otf.version,
-                    creator  = "context mkiv",
-                    unicodes = unicodes,
-                    indices  = {
-                        -- index to unicodes
-                    },
-                    duplicates = {
-                        -- alternative unicodes
-                    },
-                    variants = {
-                        -- alternative unicodes (variants)
-                    },
-                    lookuptypes = {
-                    },
-                },
-                metadata    = {
-                    -- raw metadata, not to be used
-                },
-                properties   = {
-                    -- normalized metadata
-                },
-                descriptions = {
-                },
-                goodies = {
-                },
-                helpers = {
-                    tounicodelist  = splitter,
-                    tounicodetable = lpeg.Ct(splitter),
-                },
-            }
-            starttiming(data)
-            report_otf("file size: %s", size)
-            enhancers.apply(data,filename,fontdata)
-            local packtime = { }
-            if packdata then
-                if cleanup > 0 then
-                    collectgarbage("collect")
-                end
-                starttiming(packtime)
-                enhance("pack",data,filename,nil)
-                stoptiming(packtime)
-            end
-            report_otf("saving in cache: %s",filename)
-            data = containers.write(otf.cache, hash, data)
-            if cleanup > 1 then
-                collectgarbage("collect")
-            end
-            stoptiming(data)
-            if elapsedtime then -- not in generic
-                report_otf("preprocessing and caching took %s seconds (packtime: %s)",
-                    elapsedtime(data),packdata and elapsedtime(packtime) or 0)
-            end
-            fontloader.close(fontdata) -- free memory
-            if cleanup > 3 then
-                collectgarbage("collect")
-            end
-            data = containers.read(otf.cache, hash) -- this frees the old table and load the sparse one
-            if cleanup > 2 then
-                collectgarbage("collect")
-            end
-        else
-            data = nil
-            report_otf("loading failed (file read error)")
-        end
+    if fontdata then
+      mainfields=mainfields or (fontloaderfields and fontloaderfields(fontdata))
     end
-    if data then
-        if trace_defining then
-            report_otf("loading from cache: %s",hash)
-        end
-        enhance("unpack",data,filename,nil,false)
-        enhance("add dimensions",data,filename,nil,false)
-        if trace_sequences then
-            showfeatureorder(data,filename)
+    if trace_loading and messages and #messages>0 then
+      if type(messages)=="string" then
+        report_otf("warning: %s",messages)
+      else
+        for m=1,#messages do
+          report_otf("warning: %s",tostring(messages[m]))
         end
+      end
+    else
+      report_otf("font loaded okay")
     end
-    return data
-end
-
-local mt = {
-    __index = function(t,k) -- maybe set it
-        if k == "height" then
-            local ht = t.boundingbox[4]
-            return ht < 0 and 0 or ht
-        elseif k == "depth" then
-            local dp = -t.boundingbox[2]
-            return dp < 0 and 0 or dp
-        elseif k == "width" then
-            return 0
-        elseif k == "name" then -- or maybe uni*
-            return forcenotdef and ".notdef"
-        end
+    if fontdata then
+      if featurefiles then
+        for i=1,#featurefiles do
+          load_featurefile(fontdata,featurefiles[i].name)
+        end
+      end
+      local unicodes={
+      }
+      local splitter=lpeg.splitter(" ",unicodes)
+      data={
+        size=size,
+        time=time,
+        format=format,
+        featuredata=featurefiles,
+        resources={
+          filename=resolvers.unresolve(filename),
+          version=otf.version,
+          creator="context mkiv",
+          unicodes=unicodes,
+          indices={
+          },
+          duplicates={
+          },
+          variants={
+          },
+          lookuptypes={},
+        },
+        metadata={
+        },
+        properties={
+        },
+        descriptions={},
+        goodies={},
+        helpers={
+          tounicodelist=splitter,
+          tounicodetable=lpeg.Ct(splitter),
+        },
+      }
+      starttiming(data)
+      report_otf("file size: %s",size)
+      enhancers.apply(data,filename,fontdata)
+      local packtime={}
+      if packdata then
+        if cleanup>0 then
+          collectgarbage("collect")
+        end
+        starttiming(packtime)
+        enhance("pack",data,filename,nil)
+        stoptiming(packtime)
+      end
+      report_otf("saving in cache: %s",filename)
+      data=containers.write(otf.cache,hash,data)
+      if cleanup>1 then
+        collectgarbage("collect")
+      end
+      stoptiming(data)
+      if elapsedtime then 
+        report_otf("preprocessing and caching took %s seconds (packtime: %s)",
+          elapsedtime(data),packdata and elapsedtime(packtime) or 0)
+      end
+      fontloader.close(fontdata) 
+      if cleanup>3 then
+        collectgarbage("collect")
+      end
+      data=containers.read(otf.cache,hash) 
+      if cleanup>2 then
+        collectgarbage("collect")
+      end
+    else
+      data=nil
+      report_otf("loading failed (file read error)")
     end
+  end
+  if data then
+    if trace_defining then
+      report_otf("loading from cache: %s",hash)
+    end
+    enhance("unpack",data,filename,nil,false)
+    enhance("add dimensions",data,filename,nil,false)
+    if trace_sequences then
+      showfeatureorder(data,filename)
+    end
+  end
+  return data
+end
+local mt={
+  __index=function(t,k) 
+    if k=="height" then
+      local ht=t.boundingbox[4]
+      return ht<0 and 0 or ht
+    elseif k=="depth" then
+      local dp=-t.boundingbox[2]
+      return dp<0 and 0 or dp
+    elseif k=="width" then
+      return 0
+    elseif k=="name" then 
+      return forcenotdef and ".notdef"
+    end
+  end
 }
-
-actions["prepare tables"] = function(data,filename,raw)
-    data.properties.hasitalics = false
-end
-
-actions["add dimensions"] = function(data,filename)
-    -- todo: forget about the width if it's the defaultwidth (saves mem)
-    -- we could also build the marks hash here (instead of storing it)
-    if data then
-        local descriptions  = data.descriptions
-        local resources     = data.resources
-        local defaultwidth  = resources.defaultwidth  or 0
-        local defaultheight = resources.defaultheight or 0
-        local defaultdepth  = resources.defaultdepth  or 0
-        if usemetatables then
-            for _, d in next, descriptions do
-                local wd = d.width
-                if not wd then
-                    d.width = defaultwidth
-                elseif trace_markwidth and wd ~= 0 and d.class == "mark" then
-                    report_otf("mark with width %s (%s) in %s",wd,d.name or "<noname>",file.basename(filename))
-                 -- d.width  = -wd
-                end
-                setmetatable(d,mt)
-            end
+actions["prepare tables"]=function(data,filename,raw)
+  data.properties.hasitalics=false
+end
+actions["add dimensions"]=function(data,filename)
+  if data then
+    local descriptions=data.descriptions
+    local resources=data.resources
+    local defaultwidth=resources.defaultwidth or 0
+    local defaultheight=resources.defaultheight or 0
+    local defaultdepth=resources.defaultdepth or 0
+    if usemetatables then
+      for _,d in next,descriptions do
+        local wd=d.width
+        if not wd then
+          d.width=defaultwidth
+        elseif trace_markwidth and wd~=0 and d.class=="mark" then
+          report_otf("mark with width %s (%s) in %s",wd,d.name or "<noname>",file.basename(filename))
+        end
+        setmetatable(d,mt)
+      end
+    else
+      for _,d in next,descriptions do
+        local bb,wd=d.boundingbox,d.width
+        if not wd then
+          d.width=defaultwidth
+        elseif trace_markwidth and wd~=0 and d.class=="mark" then
+          report_otf("mark with width %s (%s) in %s",wd,d.name or "<noname>",file.basename(filename))
+        end
+        if bb then
+          local ht,dp=bb[4],-bb[2]
+          if ht==0 or ht<0 then
+          else
+            d.height=ht
+          end
+          if dp==0 or dp<0 then
+          else
+            d.depth=dp
+          end
+        end
+      end
+    end
+  end
+end
+local function somecopy(old) 
+  if old then
+    local new={}
+    if type(old)=="table" then
+      for k,v in next,old do
+        if k=="glyphs" then
+        elseif type(v)=="table" then
+          new[k]=somecopy(v)
         else
-            for _, d in next, descriptions do
-                local bb, wd = d.boundingbox, d.width
-                if not wd then
-                    d.width = defaultwidth
-                elseif trace_markwidth and wd ~= 0 and d.class == "mark" then
-                    report_otf("mark with width %s (%s) in %s",wd,d.name or "<noname>",file.basename(filename))
-                 -- d.width  = -wd
-                end
-             -- if forcenotdef and not d.name then
-             --     d.name = ".notdef"
-             -- end
-                if bb then
-                    local ht, dp = bb[4], -bb[2]
-                    if ht == 0 or ht < 0 then
-                        -- not set
-                    else
-                        d.height = ht
-                    end
-                    if dp == 0 or dp < 0 then
-                        -- not set
-                    else
-                        d.depth  = dp
-                    end
-                end
-            end
+          new[k]=v
         end
-    end
-end
-
-local function somecopy(old) -- fast one
-    if old then
-        local new = { }
-        if type(old) == "table" then
-            for k, v in next, old do
-                if k == "glyphs" then
-                    -- skip
-                elseif type(v) == "table" then
-                    new[k] = somecopy(v)
-                else
-                    new[k] = v
-                end
-            end
+      end
+    else
+      for i=1,#mainfields do
+        local k=mainfields[i]
+        local v=old[k]
+        if k=="glyphs" then
+        elseif type(v)=="table" then
+          new[k]=somecopy(v)
         else
-            for i=1,#mainfields do
-                local k = mainfields[i]
-                local v = old[k]
-                if k == "glyphs" then
-                    -- skip
-                elseif type(v) == "table" then
-                    new[k] = somecopy(v)
-                else
-                    new[k] = v
-                end
-            end
+          new[k]=v
         end
-        return new
-    else
-        return { }
+      end
     end
-end
-
--- not setting hasitalics and class (when nil) during
--- table cronstruction can save some mem
-
-actions["prepare glyphs"] = function(data,filename,raw)
-    local rawglyphs    = raw.glyphs
-    local rawsubfonts  = raw.subfonts
-    local rawcidinfo   = raw.cidinfo
-    local criterium    = constructors.privateoffset
-    local private      = criterium
-    local resources    = data.resources
-    local metadata     = data.metadata
-    local properties   = data.properties
-    local descriptions = data.descriptions
-    local unicodes     = resources.unicodes -- name to unicode
-    local indices      = resources.indices  -- index to unicode
-    local duplicates   = resources.duplicates
-    local variants     = resources.variants
-
-    if rawsubfonts then
-
-        metadata.subfonts  = { }
-        properties.cidinfo = rawcidinfo
-
-        if rawcidinfo.registry then
-            local cidmap = fonts.cid.getmap(rawcidinfo)
-            if cidmap then
-                rawcidinfo.usedname = cidmap.usedname
-                local nofnames, nofunicodes = 0, 0
-                local cidunicodes, cidnames = cidmap.unicodes, cidmap.names
-                for cidindex=1,#rawsubfonts do
-                    local subfont   = rawsubfonts[cidindex]
-                    local cidglyphs = subfont.glyphs
-                    metadata.subfonts[cidindex] = somecopy(subfont)
-                    for index=0,subfont.glyphcnt-1 do -- we could take the previous glyphcnt instead of 0
-                        local glyph = cidglyphs[index]
-                        if glyph then
-                            local unicode = glyph.unicode
-                            local name    = glyph.name or cidnames[index]
-                            if not unicode or unicode == -1 or unicode >= criterium then
-                                unicode = cidunicodes[index]
-                            end
-                            if not unicode or unicode == -1 or unicode >= criterium then
-                                if not name then
-                                    name = format("u%06X",private)
-                                end
-                                unicode = private
-                                unicodes[name] = private
-                                if trace_private then
-                                    report_otf("enhance: glyph %s at index 0x%04X is moved to private unicode slot U+%05X",name,index,private)
-                                end
-                                private = private + 1
-                                nofnames = nofnames + 1
-                            else
-                                if not name then
-                                    name = format("u%06X",unicode)
-                                end
-                                unicodes[name] = unicode
-                                nofunicodes = nofunicodes + 1
-                            end
-                            indices[index] = unicode -- each index is unique (at least now)
-
-                            local description = {
-                             -- width       = glyph.width,
-                                boundingbox = glyph.boundingbox,
-                                name        = glyph.name or name or "unknown", -- uniXXXX
-                                cidindex    = cidindex,
-                                index       = index,
-                                glyph       = glyph,
-                            }
-
-                            descriptions[unicode] = description
-                        else
-                         -- report_otf("potential problem: glyph 0x%04X is used but empty",index)
-                        end
-                    end
-                end
-                if trace_loading then
-                    report_otf("cid font remapped, %s unicode points, %s symbolic names, %s glyphs",nofunicodes, nofnames, nofunicodes+nofnames)
-                end
-            elseif trace_loading then
-                report_otf("unable to remap cid font, missing cid file for %s",filename)
-            end
-        elseif trace_loading then
-            report_otf("font %s has no glyphs",filename)
-        end
-
-    else
-
-        for index=0,raw.glyphcnt-1 do -- not raw.glyphmax-1 (as that will crash)
-            local glyph = rawglyphs[index]
+    return new
+  else
+    return {}
+  end
+end
+actions["prepare glyphs"]=function(data,filename,raw)
+  local rawglyphs=raw.glyphs
+  local rawsubfonts=raw.subfonts
+  local rawcidinfo=raw.cidinfo
+  local criterium=constructors.privateoffset
+  local private=criterium
+  local resources=data.resources
+  local metadata=data.metadata
+  local properties=data.properties
+  local descriptions=data.descriptions
+  local unicodes=resources.unicodes 
+  local indices=resources.indices 
+  local duplicates=resources.duplicates
+  local variants=resources.variants
+  if rawsubfonts then
+    metadata.subfonts={}
+    properties.cidinfo=rawcidinfo
+    if rawcidinfo.registry then
+      local cidmap=fonts.cid.getmap(rawcidinfo)
+      if cidmap then
+        rawcidinfo.usedname=cidmap.usedname
+        local nofnames,nofunicodes=0,0
+        local cidunicodes,cidnames=cidmap.unicodes,cidmap.names
+        for cidindex=1,#rawsubfonts do
+          local subfont=rawsubfonts[cidindex]
+          local cidglyphs=subfont.glyphs
+          metadata.subfonts[cidindex]=somecopy(subfont)
+          for index=0,subfont.glyphcnt-1 do 
+            local glyph=cidglyphs[index]
             if glyph then
-                local unicode = glyph.unicode
-                local name    = glyph.name
-                if not unicode or unicode == -1 or unicode >= criterium then
-                    unicode = private
-                    unicodes[name] = private
-                    if trace_private then
-                        report_otf("enhance: glyph %s at index 0x%04X is moved to private unicode slot U+%05X",name,index,private)
-                    end
-                    private = private + 1
-                else
-                    unicodes[name] = unicode
-                end
-                indices[index] = unicode
+              local unicode=glyph.unicode
+              local name=glyph.name or cidnames[index]
+              if not unicode or unicode==-1 or unicode>=criterium then
+                unicode=cidunicodes[index]
+              end
+              if not unicode or unicode==-1 or unicode>=criterium then
                 if not name then
-                    name = format("u%06X",unicode)
+                  name=format("u%06X",private)
                 end
-                descriptions[unicode] = {
-                 -- width       = glyph.width,
-                    boundingbox = glyph.boundingbox,
-                    name        = name,
-                    index       = index,
-                    glyph       = glyph,
-                }
-                local altuni = glyph.altuni
-                if altuni then
-                    local d
-                    for i=1,#altuni do
-                        local a = altuni[i]
-                        local u = a.unicode
-                        local v = a.variant
-                        if v then
-                            local vv = variants[v]
-                            if vv then
-                                vv[u] = unicode
-                            else -- xits-math has some:
-                                vv = { [u] = unicode }
-                                variants[v] = vv
-                            end
-                        elseif d then
-                            d[#d+1] = u
-                        else
-                            d = { u }
-                        end
-                    end
-                    if d then
-                        duplicates[unicode] = d
-                    end
+                unicode=private
+                unicodes[name]=private
+                if trace_private then
+                  report_otf("enhance: glyph %s at index 0x%04X is moved to private unicode slot U+%05X",name,index,private)
                 end
+                private=private+1
+                nofnames=nofnames+1
+              else
+                if not name then
+                  name=format("u%06X",unicode)
+                end
+                unicodes[name]=unicode
+                nofunicodes=nofunicodes+1
+              end
+              indices[index]=unicode 
+              local description={
+                boundingbox=glyph.boundingbox,
+                name=glyph.name or name or "unknown",
+                cidindex=cidindex,
+                index=index,
+                glyph=glyph,
+              }
+              descriptions[unicode]=description
             else
-                report_otf("potential problem: glyph 0x%04X is used but empty",index)
             end
+          end
         end
-
-    end
-
-    resources.private = private
-
-end
-
--- the next one is still messy but will get better when we have
--- flattened map/enc tables in the font loader
-
-actions["check encoding"] = function(data,filename,raw)
-    local descriptions = data.descriptions
-    local resources    = data.resources
-    local properties   = data.properties
-    local unicodes     = resources.unicodes -- name to unicode
-    local indices      = resources.indices  -- index to unicodes
-
-    -- begin of messy (not needed when cidmap)
-
-    local mapdata        = raw.map or { }
-    local unicodetoindex = mapdata and mapdata.map or { }
- -- local encname        = lower(data.enc_name or raw.enc_name or mapdata.enc_name or "")
-    local encname        = lower(data.enc_name or mapdata.enc_name or "")
-    local criterium      = 0xFFFF -- for instance cambria has a lot of mess up there
-
-    -- end of messy
-
-    if find(encname,"unicode") then -- unicodebmp, unicodefull, ...
         if trace_loading then
-            report_otf("checking embedded unicode map '%s'",encname)
+          report_otf("cid font remapped, %s unicode points, %s symbolic names, %s glyphs",nofunicodes,nofnames,nofunicodes+nofnames)
         end
-        for unicode, index in next, unicodetoindex do -- altuni already covers this
-            if unicode <= criterium and not descriptions[unicode] then
-                local parent = indices[index] -- why nil?
-                if parent then
-                    report_otf("weird, unicode U+%05X points to U+%05X with index 0x%04X",unicode,parent,index)
-                else
-                    report_otf("weird, unicode U+%05X points to nowhere with index 0x%04X",unicode,index)
-                end
-            end
+      elseif trace_loading then
+        report_otf("unable to remap cid font, missing cid file for %s",filename)
+      end
+    elseif trace_loading then
+      report_otf("font %s has no glyphs",filename)
+    end
+  else
+    for index=0,raw.glyphcnt-1 do 
+      local glyph=rawglyphs[index]
+      if glyph then
+        local unicode=glyph.unicode
+        local name=glyph.name
+        if not unicode or unicode==-1 or unicode>=criterium then
+          unicode=private
+          unicodes[name]=private
+          if trace_private then
+            report_otf("enhance: glyph %s at index 0x%04X is moved to private unicode slot U+%05X",name,index,private)
+          end
+          private=private+1
+        else
+          unicodes[name]=unicode
         end
-    elseif properties.cidinfo then
-        report_otf("warning: no unicode map, used cidmap '%s'",properties.cidinfo.usedname or "?")
-    else
-        report_otf("warning: non unicode map '%s', only using glyph unicode data",encname or "whatever")
-    end
-
-    if mapdata then
-        mapdata.map = { } -- clear some memory
-    end
-end
-
--- for the moment we assume that a fotn with lookups will not use
--- altuni so we stick to kerns only
-
-actions["add duplicates"] = function(data,filename,raw)
-    local descriptions = data.descriptions
-    local resources    = data.resources
-    local properties   = data.properties
-    local unicodes     = resources.unicodes -- name to unicode
-    local indices      = resources.indices  -- index to unicodes
-    local duplicates   = resources.duplicates
-
-    for unicode, d in next, duplicates do
-        for i=1,#d do
-            local u = d[i]
-            if not descriptions[u] then
-                local description = descriptions[unicode]
-                local duplicate = table.copy(description) -- else packing problem
-                duplicate.comment = format("copy of U+%05X", unicode)
-                descriptions[u] = duplicate
-                local n = 0
-                for _, description in next, descriptions do
-                    if kerns then
-                        local kerns = description.kerns
-                        for _, k in next, kerns do
-                            local ku = k[unicode]
-                            if ku then
-                                k[u] = ku
-                                n = n + 1
-                            end
-                        end
-                    end
-                    -- todo: lookups etc
-                end
-                if trace_loading then
-                    report_otf("duplicating U+%05X to U+%05X with index 0x%04X (%s kerns)",unicode,u,description.index,n)
-                end
-            end
+        indices[index]=unicode
+        if not name then
+          name=format("u%06X",unicode)
         end
+        descriptions[unicode]={
+          boundingbox=glyph.boundingbox,
+          name=name,
+          index=index,
+          glyph=glyph,
+        }
+        local altuni=glyph.altuni
+        if altuni then
+          local d
+          for i=1,#altuni do
+            local a=altuni[i]
+            local u=a.unicode
+            local v=a.variant
+            if v then
+              local vv=variants[v]
+              if vv then
+                vv[u]=unicode
+              else 
+                vv={ [u]=unicode }
+                variants[v]=vv
+              end
+            elseif d then
+              d[#d+1]=u
+            else
+              d={ u }
+            end
+          end
+          if d then
+            duplicates[unicode]=d
+          end
+        end
+      else
+        report_otf("potential problem: glyph 0x%04X is used but empty",index)
+      end
+    end
+  end
+  resources.private=private
+end
+actions["check encoding"]=function(data,filename,raw)
+  local descriptions=data.descriptions
+  local resources=data.resources
+  local properties=data.properties
+  local unicodes=resources.unicodes 
+  local indices=resources.indices
+  local mapdata=raw.map or {}
+  local unicodetoindex=mapdata and mapdata.map or {}
+  local encname=lower(data.enc_name or mapdata.enc_name or "")
+  local criterium=0xFFFF
+  if find(encname,"unicode") then 
+    if trace_loading then
+      report_otf("checking embedded unicode map '%s'",encname)
     end
-end
-
--- class      : nil base mark ligature component (maybe we don't need it in description)
--- boundingbox: split into ht/dp takes more memory (larger tables and less sharing)
-
-actions["analyze glyphs"] = function(data,filename,raw) -- maybe integrate this in the previous
-    local descriptions      = data.descriptions
-    local resources         = data.resources
-    local metadata          = data.metadata
-    local properties        = data.properties
-    local hasitalics        = false
-    local widths            = { }
-    local marks             = { } -- always present (saves checking)
-    for unicode, description in next, descriptions do
-        local glyph = description.glyph
-        local italic = glyph.italic_correction
-        if not italic then
-            -- skip
-        elseif italic == 0 then
-            -- skip
+    for unicode,index in next,unicodetoindex do 
+      if unicode<=criterium and not descriptions[unicode] then
+        local parent=indices[index] 
+        if parent then
+          report_otf("weird, unicode U+%05X points to U+%05X with index 0x%04X",unicode,parent,index)
         else
-            description.italic = italic
-            hasitalics = true
-        end
-        local width = glyph.width
-        widths[width] = (widths[width] or 0) + 1
-        local class = glyph.class
-        if class then
-            if class == "mark" then
-                marks[unicode] = true
-            end
-            description.class = class
+          report_otf("weird, unicode U+%05X points to nowhere with index 0x%04X",unicode,index)
+        end
+      end
+    end
+  elseif properties.cidinfo then
+    report_otf("warning: no unicode map, used cidmap '%s'",properties.cidinfo.usedname or "?")
+  else
+    report_otf("warning: non unicode map '%s', only using glyph unicode data",encname or "whatever")
+  end
+  if mapdata then
+    mapdata.map={} 
+  end
+end
+actions["add duplicates"]=function(data,filename,raw)
+  local descriptions=data.descriptions
+  local resources=data.resources
+  local properties=data.properties
+  local unicodes=resources.unicodes 
+  local indices=resources.indices 
+  local duplicates=resources.duplicates
+  for unicode,d in next,duplicates do
+    for i=1,#d do
+      local u=d[i]
+      if not descriptions[u] then
+        local description=descriptions[unicode]
+        local duplicate=table.copy(description) 
+        duplicate.comment=format("copy of U+%05X",unicode)
+        descriptions[u]=duplicate
+        local n=0
+        for _,description in next,descriptions do
+          if kerns then
+            local kerns=description.kerns
+            for _,k in next,kerns do
+              local ku=k[unicode]
+              if ku then
+                k[u]=ku
+                n=n+1
+              end
+            end
+          end
         end
-    end
-    -- flag italic
-    properties.hasitalics = hasitalics
-    -- flag marks
-    resources.marks = marks
-    -- share most common width for cjk fonts
-    local wd, most = 0, 1
-    for k,v in next, widths do
-        if v > most then
-            wd, most = k, v
-        end
-    end
-    if most > 1000 then -- maybe 500
         if trace_loading then
-            report_otf("most common width: %s (%s times), sharing (cjk font)",wd,most)
-        end
-        for unicode, description in next, descriptions do
-            if description.width == wd then
-             -- description.width = nil
-            else
-                description.width = description.glyph.width
-            end
-        end
-        resources.defaultwidth = wd
+          report_otf("duplicating U+%05X to U+%05X with index 0x%04X (%s kerns)",unicode,u,description.index,n)
+        end
+      end
+    end
+  end
+end
+actions["analyze glyphs"]=function(data,filename,raw) 
+  local descriptions=data.descriptions
+  local resources=data.resources
+  local metadata=data.metadata
+  local properties=data.properties
+  local hasitalics=false
+  local widths={}
+  local marks={} 
+  for unicode,description in next,descriptions do
+    local glyph=description.glyph
+    local italic=glyph.italic_correction
+    if not italic then
+    elseif italic==0 then
     else
-        for unicode, description in next, descriptions do
-            description.width = description.glyph.width
-        end
-    end
-end
-
-actions["reorganize mark classes"] = function(data,filename,raw)
-    local mark_classes = raw.mark_classes
-    if mark_classes then
-        local resources       = data.resources
-        local unicodes        = resources.unicodes
-        local markclasses     = { }
-        resources.markclasses = markclasses -- reversed
-        for name, class in next, mark_classes do
-            local t = { }
-            for s in gmatch(class,"[^ ]+") do
-                t[unicodes[s]] = true
-            end
-            markclasses[name] = t
-        end
-    end
-end
-
-actions["reorganize features"] = function(data,filename,raw) -- combine with other
-    local features = { }
-    data.resources.features = features
-    for k, what in next, otf.glists do
-        local dw = raw[what]
-        if dw then
-            local f = { }
-            features[what] = f
-            for i=1,#dw do
-                local d= dw[i]
-                local dfeatures = d.features
-                if dfeatures then
-                    for i=1,#dfeatures do
-                        local df = dfeatures[i]
-                        local tag = strip(lower(df.tag))
-                        local ft = f[tag]
-                        if not ft then
-                            ft = { }
-                            f[tag] = ft
-                        end
-                        local dscripts = df.scripts
-                        for i=1,#dscripts do
-                            local d = dscripts[i]
-                            local languages = d.langs
-                            local script = strip(lower(d.script))
-                            local fts = ft[script] if not fts then fts = {} ft[script] = fts end
-                            for i=1,#languages do
-                                fts[strip(lower(languages[i]))] = true
-                            end
-                        end
-                    end
-                end
-            end
-        end
-    end
-end
-
-actions["reorganize anchor classes"] = function(data,filename,raw)
-    local resources            = data.resources
-    local anchor_to_lookup     = { }
-    local lookup_to_anchor     = { }
-    resources.anchor_to_lookup = anchor_to_lookup
-    resources.lookup_to_anchor = lookup_to_anchor
-    local classes              = raw.anchor_classes -- anchor classes not in final table
-    if classes then
-        for c=1,#classes do
-            local class   = classes[c]
-            local anchor  = class.name
-            local lookups = class.lookup
-            if type(lookups) ~= "table" then
-                lookups = { lookups }
-            end
-            local a = anchor_to_lookup[anchor]
-            if not a then
-                a = { }
-                anchor_to_lookup[anchor] = a
-            end
-            for l=1,#lookups do
-                local lookup = lookups[l]
-                local l = lookup_to_anchor[lookup]
-                if l then
-                    l[anchor] = true
-                else
-                    l = { [anchor] = true }
-                    lookup_to_anchor[lookup] = l
-                end
-                a[lookup] = true
-            end
+      description.italic=italic
+      hasitalics=true
+    end
+    local width=glyph.width
+    widths[width]=(widths[width] or 0)+1
+    local class=glyph.class
+    if class then
+      if class=="mark" then
+        marks[unicode]=true
+      end
+      description.class=class
+    end
+  end
+  properties.hasitalics=hasitalics
+  resources.marks=marks
+  local wd,most=0,1
+  for k,v in next,widths do
+    if v>most then
+      wd,most=k,v
+    end
+  end
+  if most>1000 then 
+    if trace_loading then
+      report_otf("most common width: %s (%s times), sharing (cjk font)",wd,most)
+    end
+    for unicode,description in next,descriptions do
+      if description.width==wd then
+      else
+        description.width=description.glyph.width
+      end
+    end
+    resources.defaultwidth=wd
+  else
+    for unicode,description in next,descriptions do
+      description.width=description.glyph.width
+    end
+  end
+end
+actions["reorganize mark classes"]=function(data,filename,raw)
+  local mark_classes=raw.mark_classes
+  if mark_classes then
+    local resources=data.resources
+    local unicodes=resources.unicodes
+    local markclasses={}
+    resources.markclasses=markclasses 
+    for name,class in next,mark_classes do
+      local t={}
+      for s in gmatch(class,"[^ ]+") do
+        t[unicodes[s]]=true
+      end
+      markclasses[name]=t
+    end
+  end
+end
+actions["reorganize features"]=function(data,filename,raw) 
+  local features={}
+  data.resources.features=features
+  for k,what in next,otf.glists do
+    local dw=raw[what]
+    if dw then
+      local f={}
+      features[what]=f
+      for i=1,#dw do
+        local d=dw[i]
+        local dfeatures=d.features
+        if dfeatures then
+          for i=1,#dfeatures do
+            local df=dfeatures[i]
+            local tag=strip(lower(df.tag))
+            local ft=f[tag]
+            if not ft then
+              ft={}
+              f[tag]=ft
+            end
+            local dscripts=df.scripts
+            for i=1,#dscripts do
+              local d=dscripts[i]
+              local languages=d.langs
+              local script=strip(lower(d.script))
+              local fts=ft[script] if not fts then fts={} ft[script]=fts end
+              for i=1,#languages do
+                fts[strip(lower(languages[i]))]=true
+              end
+            end
+          end
+        end
+      end
+    end
+  end
+end
+actions["reorganize anchor classes"]=function(data,filename,raw)
+  local resources=data.resources
+  local anchor_to_lookup={}
+  local lookup_to_anchor={}
+  resources.anchor_to_lookup=anchor_to_lookup
+  resources.lookup_to_anchor=lookup_to_anchor
+  local classes=raw.anchor_classes 
+  if classes then
+    for c=1,#classes do
+      local class=classes[c]
+      local anchor=class.name
+      local lookups=class.lookup
+      if type(lookups)~="table" then
+        lookups={ lookups }
+      end
+      local a=anchor_to_lookup[anchor]
+      if not a then
+        a={}
+        anchor_to_lookup[anchor]=a
+      end
+      for l=1,#lookups do
+        local lookup=lookups[l]
+        local l=lookup_to_anchor[lookup]
+        if l then
+          l[anchor]=true
+        else
+          l={ [anchor]=true }
+          lookup_to_anchor[lookup]=l
         end
+        a[lookup]=true
+      end
     end
+  end
 end
-
-actions["prepare tounicode"] = function(data,filename,raw)
-    fonts.mappings.addtounicode(data,filename)
+actions["prepare tounicode"]=function(data,filename,raw)
+  fonts.mappings.addtounicode(data,filename)
 end
-
-local g_directions = {
-    gsub_contextchain        =  1,
-    gpos_contextchain        =  1,
- -- gsub_context             =  1,
- -- gpos_context             =  1,
-    gsub_reversecontextchain = -1,
-    gpos_reversecontextchain = -1,
+local g_directions={
+  gsub_contextchain=1,
+  gpos_contextchain=1,
+  gsub_reversecontextchain=-1,
+  gpos_reversecontextchain=-1,
 }
-
--- Research by Khaled Hosny has demonstrated that the font loader merges
--- regular and AAT features and that these can interfere (especially because
--- we dropped checking for valid features elsewhere. So, we just check for
--- the special flag and drop the feature if such a tag is found.
-
 local function supported(features)
-    for i=1,#features do
-        if features[i].ismac then
-            return false
-        end
-    end
-    return true
-end
-
-actions["reorganize subtables"] = function(data,filename,raw)
-    local resources       = data.resources
-    local sequences       = { }
-    local lookups         = { }
-    local chainedfeatures = { }
-    resources.sequences   = sequences
-    resources.lookups     = lookups
-    for _, what in next, otf.glists do
-        local dw = raw[what]
-        if dw then
-            for k=1,#dw do
-                local gk = dw[k]
-                local features = gk.features
---              if features and supported(features) then
-                if not features or supported(features) then -- not always features !
-                    local typ = gk.type
-                    local chain = g_directions[typ] or 0
-                    local subtables = gk.subtables
-                    if subtables then
-                        local t = { }
-                        for s=1,#subtables do
-                            t[s] = subtables[s].name
-                        end
-                        subtables = t
-                    end
-                    local flags, markclass = gk.flags, nil
-                    if flags then
-                        local t = { -- forcing false packs nicer
-                            (flags.ignorecombiningmarks and "mark")     or false,
-                            (flags.ignoreligatures      and "ligature") or false,
-                            (flags.ignorebaseglyphs     and "base")     or false,
-                             flags.r2l                                  or false,
-                        }
-                        markclass = flags.mark_class
-                        if markclass then
-                            markclass = resources.markclasses[markclass]
-                        end
-                        flags = t
-                    end
-                    --
-                    local name = gk.name
-                    --
-                    if not name then
-                        -- in fact an error
-                        report_otf("skipping weird lookup number %s",k)
-                    elseif features then
-                        -- scripts, tag, ismac
-                        local f = { }
-                        for i=1,#features do
-                            local df = features[i]
-                            local tag = strip(lower(df.tag))
-                            local ft = f[tag] if not ft then ft = {} f[tag] = ft end
-                            local dscripts = df.scripts
-                            for i=1,#dscripts do
-                                local d = dscripts[i]
-                                local languages = d.langs
-                                local script = strip(lower(d.script))
-                                local fts = ft[script] if not fts then fts = {} ft[script] = fts end
-                                for i=1,#languages do
-                                    fts[strip(lower(languages[i]))] = true
-                                end
-                            end
-                        end
-                        sequences[#sequences+1] = {
-                            type      = typ,
-                            chain     = chain,
-                            flags     = flags,
-                            name      = name,
-                            subtables = subtables,
-                            markclass = markclass,
-                            features  = f,
-                        }
-                    else
-                        lookups[name] = {
-                            type      = typ,
-                            chain     = chain,
-                            flags     = flags,
-                            subtables = subtables,
-                            markclass = markclass,
-                        }
-                    end
-                end
-            end
+  for i=1,#features do
+    if features[i].ismac then
+      return false
+    end
+  end
+  return true
+end
+actions["reorganize subtables"]=function(data,filename,raw)
+  local resources=data.resources
+  local sequences={}
+  local lookups={}
+  local chainedfeatures={}
+  resources.sequences=sequences
+  resources.lookups=lookups
+  for _,what in next,otf.glists do
+    local dw=raw[what]
+    if dw then
+      for k=1,#dw do
+        local gk=dw[k]
+        local features=gk.features
+        if not features or supported(features) then 
+          local typ=gk.type
+          local chain=g_directions[typ] or 0
+          local subtables=gk.subtables
+          if subtables then
+            local t={}
+            for s=1,#subtables do
+              t[s]=subtables[s].name
+            end
+            subtables=t
+          end
+          local flags,markclass=gk.flags,nil
+          if flags then
+            local t={ 
+              (flags.ignorecombiningmarks and "mark")   or false,
+              (flags.ignoreligatures   and "ligature") or false,
+              (flags.ignorebaseglyphs   and "base")   or false,
+               flags.r2l                 or false,
+            }
+            markclass=flags.mark_class
+            if markclass then
+              markclass=resources.markclasses[markclass]
+            end
+            flags=t
+          end
+          local name=gk.name
+          if not name then
+            report_otf("skipping weird lookup number %s",k)
+          elseif features then
+            local f={}
+            for i=1,#features do
+              local df=features[i]
+              local tag=strip(lower(df.tag))
+              local ft=f[tag] if not ft then ft={} f[tag]=ft end
+              local dscripts=df.scripts
+              for i=1,#dscripts do
+                local d=dscripts[i]
+                local languages=d.langs
+                local script=strip(lower(d.script))
+                local fts=ft[script] if not fts then fts={} ft[script]=fts end
+                for i=1,#languages do
+                  fts[strip(lower(languages[i]))]=true
+                end
+              end
+            end
+            sequences[#sequences+1]={
+              type=typ,
+              chain=chain,
+              flags=flags,
+              name=name,
+              subtables=subtables,
+              markclass=markclass,
+              features=f,
+            }
+          else
+            lookups[name]={
+              type=typ,
+              chain=chain,
+              flags=flags,
+              subtables=subtables,
+              markclass=markclass,
+            }
+          end
         end
+      end
     end
+  end
 end
-
--- test this:
---
---    for _, what in next, otf.glists do
---        raw[what] = nil
---    end
-
-actions["prepare lookups"] = function(data,filename,raw)
-    local lookups = raw.lookups
-    if lookups then
-        data.lookups = lookups
-    end
+actions["prepare lookups"]=function(data,filename,raw)
+  local lookups=raw.lookups
+  if lookups then
+    data.lookups=lookups
+  end
 end
-
--- The reverse handler does a bit redundant splitting but it's seldom
--- seen so we don't bother too much. We could store the replacement
--- in the current list (value instead of true) but it makes other code
--- uglier. Maybe some day.
-
 local function t_uncover(splitter,cache,covers)
-    local result = { }
-    for n=1,#covers do
-        local cover = covers[n]
-        local uncovered = cache[cover]
-        if not uncovered then
-            uncovered = lpegmatch(splitter,cover)
-            cache[cover] = uncovered
-        end
-        result[n] = uncovered
-    end
-    return result
+  local result={}
+  for n=1,#covers do
+    local cover=covers[n]
+    local uncovered=cache[cover]
+    if not uncovered then
+      uncovered=lpegmatch(splitter,cover)
+      cache[cover]=uncovered
+    end
+    result[n]=uncovered
+  end
+  return result
 end
-
 local function s_uncover(splitter,cache,cover)
-    if cover == "" then
-        return nil
-    else
-        local uncovered = cache[cover]
-        if not uncovered then
-            uncovered = lpegmatch(splitter,cover)
---             for i=1,#uncovered do
---                 uncovered[i] = { [uncovered[i]] = true }
---             end
-            cache[cover] = uncovered
-        end
-        return { uncovered }
+  if cover=="" then
+    return nil
+  else
+    local uncovered=cache[cover]
+    if not uncovered then
+      uncovered=lpegmatch(splitter,cover)
+      cache[cover]=uncovered
     end
+    return { uncovered }
+  end
 end
-
 local function t_hashed(t,cache)
-    if t then
-        local ht = { }
-        for i=1,#t do
-            local ti = t[i]
-            local tih = cache[ti]
-            if not tih then
-                tih = { }
-                for i=1,#ti do
-                    tih[ti[i]] = true
-                end
-                cache[ti] = tih
-            end
-            ht[i] = tih
-        end
-        return ht
-    else
-        return nil
-    end
+  if t then
+    local ht={}
+    for i=1,#t do
+      local ti=t[i]
+      local tih=cache[ti]
+      if not tih then
+        tih={}
+        for i=1,#ti do
+          tih[ti[i]]=true
+        end
+        cache[ti]=tih
+      end
+      ht[i]=tih
+    end
+    return ht
+  else
+    return nil
+  end
 end
-
-local s_hashed = t_hashed
-
+local s_hashed=t_hashed
 local function r_uncover(splitter,cache,cover,replacements)
-    if cover == "" then
-        return nil
-    else
-        -- we always have current as { } even in the case of one
-        local uncovered = cover[1]
-        local replaced = cache[replacements]
-        if not replaced then
-            replaced = lpegmatch(splitter,replacements)
-            cache[replacements] = replaced
-        end
-        local nu, nr = #uncovered, #replaced
-        local r = { }
-        if nu == nr then
-            for i=1,nu do
-                r[uncovered[i]] = replaced[i]
-            end
-        end
-        return r
-    end
-end
-
-actions["reorganize lookups"] = function(data,filename,raw) -- we could check for "" and n == 0
-    -- we prefer the before lookups in a normal order
-    if data.lookups then
-        local splitter = data.helpers.tounicodetable
-        local t_u_cache = { }
-        local s_u_cache = t_u_cache -- string keys
-        local t_h_cache = { }
-        local s_h_cache = t_h_cache -- table keys (so we could use one cache)
-        local r_u_cache = { } -- maybe shared
-        for _, lookup in next, data.lookups do
-            local rules = lookup.rules
-            if rules then
-                local format = lookup.format
-                if format == "class" then
-                    local before_class = lookup.before_class
-                    if before_class then
-                        before_class = t_uncover(splitter,t_u_cache,reversed(before_class))
-                    end
-                    local current_class = lookup.current_class
-                    if current_class then
-                        current_class = t_uncover(splitter,t_u_cache,current_class)
-                    end
-                    local after_class = lookup.after_class
-                    if after_class then
-                        after_class = t_uncover(splitter,t_u_cache,after_class)
-                    end
-                    for i=1,#rules do
-                        local rule = rules[i]
-                        local class = rule.class
-                        local before = class.before
-                        if before then
-                            for i=1,#before do
-                                before[i] = before_class[before[i]] or { }
-                            end
-                            rule.before = t_hashed(before,t_h_cache)
-                        end
-                        local current = class.current
-                        local lookups = rule.lookups
-                        if current then
-                            for i=1,#current do
-                                current[i] = current_class[current[i]] or { }
-                                if lookups and not lookups[i] then
-                                    lookups[i] = "" -- (was: false) e.g. we can have two lookups and one replacement
-                                end
-                            end
-                            rule.current = t_hashed(current,t_h_cache)
-                        end
-                        local after = class.after
-                        if after then
-                            for i=1,#after do
-                                after[i] = after_class[after[i]] or { }
-                            end
-                            rule.after = t_hashed(after,t_h_cache)
-                        end
-                        rule.class = nil
-                    end
-                    lookup.before_class  = nil
-                    lookup.current_class = nil
-                    lookup.after_class   = nil
-                    lookup.format        = "coverage"
-                elseif format == "coverage" then
-                    for i=1,#rules do
-                        local rule = rules[i]
-                        local coverage = rule.coverage
-                        if coverage then
-                            local before = coverage.before
-                            if before then
-                                before = t_uncover(splitter,t_u_cache,reversed(before))
-                                rule.before = t_hashed(before,t_h_cache)
-                            end
-                            local current = coverage.current
-                            if current then
-                                current = t_uncover(splitter,t_u_cache,current)
-                                rule.current = t_hashed(current,t_h_cache)
-                            end
-                            local after = coverage.after
-                            if after then
-                                after = t_uncover(splitter,t_u_cache,after)
-                                rule.after = t_hashed(after,t_h_cache)
-                            end
-                            rule.coverage = nil
-                        end
-                    end
-                elseif format == "reversecoverage" then -- special case, single substitution only
-                    for i=1,#rules do
-                        local rule = rules[i]
-                        local reversecoverage = rule.reversecoverage
-                        if reversecoverage then
-                            local before = reversecoverage.before
-                            if before then
-                                before = t_uncover(splitter,t_u_cache,reversed(before))
-                                rule.before = t_hashed(before,t_h_cache)
-                            end
-                            local current = reversecoverage.current
-                            if current then
-                                current = t_uncover(splitter,t_u_cache,current)
-                                rule.current = t_hashed(current,t_h_cache)
-                            end
-                            local after = reversecoverage.after
-                            if after then
-                                after = t_uncover(splitter,t_u_cache,after)
-                                rule.after = t_hashed(after,t_h_cache)
-                            end
-                            local replacements = reversecoverage.replacements
-                            if replacements then
-                                rule.replacements = r_uncover(splitter,r_u_cache,current,replacements)
-                            end
-                            rule.reversecoverage = nil
-                        end
-                    end
-                elseif format == "glyphs" then
-                    for i=1,#rules do
-                        local rule = rules[i]
-                        local glyphs = rule.glyphs
-                        if glyphs then
-                            local fore = glyphs.fore
-                            if fore and fore ~= "" then
-                                fore = s_uncover(splitter,s_u_cache,fore)
-                                rule.before = s_hashed(fore,s_h_cache)
-                            end
-                            local back = glyphs.back
-                            if back then
-                                back = s_uncover(splitter,s_u_cache,back)
-                                rule.after = s_hashed(back,s_h_cache)
-                            end
-                            local names = glyphs.names
-                            if names then
-                                names = s_uncover(splitter,s_u_cache,names)
-                                rule.current = s_hashed(names,s_h_cache)
-                            end
-                            rule.glyphs = nil
-                        end
-                    end
-                end
-            end
-        end
-    end
+  if cover=="" then
+    return nil
+  else
+    local uncovered=cover[1]
+    local replaced=cache[replacements]
+    if not replaced then
+      replaced=lpegmatch(splitter,replacements)
+      cache[replacements]=replaced
+    end
+    local nu,nr=#uncovered,#replaced
+    local r={}
+    if nu==nr then
+      for i=1,nu do
+        r[uncovered[i]]=replaced[i]
+      end
+    end
+    return r
+  end
+end
+actions["reorganize lookups"]=function(data,filename,raw)
+  if data.lookups then
+    local splitter=data.helpers.tounicodetable
+    local t_u_cache={}
+    local s_u_cache=t_u_cache 
+    local t_h_cache={}
+    local s_h_cache=t_h_cache 
+    local r_u_cache={} 
+    for _,lookup in next,data.lookups do
+      local rules=lookup.rules
+      if rules then
+        local format=lookup.format
+        if format=="class" then
+          local before_class=lookup.before_class
+          if before_class then
+            before_class=t_uncover(splitter,t_u_cache,reversed(before_class))
+          end
+          local current_class=lookup.current_class
+          if current_class then
+            current_class=t_uncover(splitter,t_u_cache,current_class)
+          end
+          local after_class=lookup.after_class
+          if after_class then
+            after_class=t_uncover(splitter,t_u_cache,after_class)
+          end
+          for i=1,#rules do
+            local rule=rules[i]
+            local class=rule.class
+            local before=class.before
+            if before then
+              for i=1,#before do
+                before[i]=before_class[before[i]] or {}
+              end
+              rule.before=t_hashed(before,t_h_cache)
+            end
+            local current=class.current
+            local lookups=rule.lookups
+            if current then
+              for i=1,#current do
+                current[i]=current_class[current[i]] or {}
+                if lookups and not lookups[i] then
+                  lookups[i]="" 
+                end
+              end
+              rule.current=t_hashed(current,t_h_cache)
+            end
+            local after=class.after
+            if after then
+              for i=1,#after do
+                after[i]=after_class[after[i]] or {}
+              end
+              rule.after=t_hashed(after,t_h_cache)
+            end
+            rule.class=nil
+          end
+          lookup.before_class=nil
+          lookup.current_class=nil
+          lookup.after_class=nil
+          lookup.format="coverage"
+        elseif format=="coverage" then
+          for i=1,#rules do
+            local rule=rules[i]
+            local coverage=rule.coverage
+            if coverage then
+              local before=coverage.before
+              if before then
+                before=t_uncover(splitter,t_u_cache,reversed(before))
+                rule.before=t_hashed(before,t_h_cache)
+              end
+              local current=coverage.current
+              if current then
+                current=t_uncover(splitter,t_u_cache,current)
+                rule.current=t_hashed(current,t_h_cache)
+              end
+              local after=coverage.after
+              if after then
+                after=t_uncover(splitter,t_u_cache,after)
+                rule.after=t_hashed(after,t_h_cache)
+              end
+              rule.coverage=nil
+            end
+          end
+        elseif format=="reversecoverage" then 
+          for i=1,#rules do
+            local rule=rules[i]
+            local reversecoverage=rule.reversecoverage
+            if reversecoverage then
+              local before=reversecoverage.before
+              if before then
+                before=t_uncover(splitter,t_u_cache,reversed(before))
+                rule.before=t_hashed(before,t_h_cache)
+              end
+              local current=reversecoverage.current
+              if current then
+                current=t_uncover(splitter,t_u_cache,current)
+                rule.current=t_hashed(current,t_h_cache)
+              end
+              local after=reversecoverage.after
+              if after then
+                after=t_uncover(splitter,t_u_cache,after)
+                rule.after=t_hashed(after,t_h_cache)
+              end
+              local replacements=reversecoverage.replacements
+              if replacements then
+                rule.replacements=r_uncover(splitter,r_u_cache,current,replacements)
+              end
+              rule.reversecoverage=nil
+            end
+          end
+        elseif format=="glyphs" then
+          for i=1,#rules do
+            local rule=rules[i]
+            local glyphs=rule.glyphs
+            if glyphs then
+              local fore=glyphs.fore
+              if fore and fore~="" then
+                fore=s_uncover(splitter,s_u_cache,fore)
+                rule.before=s_hashed(fore,s_h_cache)
+              end
+              local back=glyphs.back
+              if back then
+                back=s_uncover(splitter,s_u_cache,back)
+                rule.after=s_hashed(back,s_h_cache)
+              end
+              local names=glyphs.names
+              if names then
+                names=s_uncover(splitter,s_u_cache,names)
+                rule.current=s_hashed(names,s_h_cache)
+              end
+              rule.glyphs=nil
+            end
+          end
+        end
+      end
+    end
+  end
 end
-
 local function check_variants(unicode,the_variants,splitter,unicodes)
-    local variants = the_variants.variants
-    if variants then -- use splitter
-        local glyphs = lpegmatch(splitter,variants)
-        local done   = { [unicode] = true }
-        local n      = 0
-        for i=1,#glyphs do
-            local g = glyphs[i]
-            if done[g] then
-                report_otf("skipping cyclic reference U+%05X in math variant U+%05X",g,unicode)
+  local variants=the_variants.variants
+  if variants then 
+    local glyphs=lpegmatch(splitter,variants)
+    local done={ [unicode]=true }
+    local n=0
+    for i=1,#glyphs do
+      local g=glyphs[i]
+      if done[g] then
+        report_otf("skipping cyclic reference U+%05X in math variant U+%05X",g,unicode)
+      else
+        if n==0 then
+          n=1
+          variants={ g }
+        else
+          n=n+1
+          variants[n]=g
+        end
+        done[g]=true
+      end
+    end
+    if n==0 then
+      variants=nil
+    end
+  end
+  local parts=the_variants.parts
+  if parts then
+    local p=#parts
+    if p>0 then
+      for i=1,p do
+        local pi=parts[i]
+        pi.glyph=unicodes[pi.component] or 0
+        pi.component=nil
+      end
+    else
+      parts=nil
+    end
+  end
+  local italic_correction=the_variants.italic_correction
+  if italic_correction and italic_correction==0 then
+    italic_correction=nil
+  end
+  return variants,parts,italic_correction
+end
+actions["analyze math"]=function(data,filename,raw)
+  if raw.math then
+    data.metadata.math=raw.math
+    local unicodes=data.resources.unicodes
+    local splitter=data.helpers.tounicodetable
+    for unicode,description in next,data.descriptions do
+      local glyph=description.glyph
+      local mathkerns=glyph.mathkern 
+      local horiz_variants=glyph.horiz_variants
+      local vert_variants=glyph.vert_variants
+      local top_accent=glyph.top_accent
+      if mathkerns or horiz_variants or vert_variants or top_accent then
+        local math={}
+        if top_accent then
+          math.top_accent=top_accent
+        end
+        if mathkerns then
+          for k,v in next,mathkerns do
+            if not next(v) then
+              mathkerns[k]=nil
             else
-                if n == 0 then
-                    n = 1
-                    variants = { g }
-                else
-                    n = n + 1
-                    variants[n] = g
+              for k,v in next,v do
+                if v==0 then
+                  k[v]=nil 
                 end
-                done[g] = true
+              end
             end
+          end
+          math.kerns=mathkerns
         end
-        if n == 0 then
-            variants = nil
+        if horiz_variants then
+          math.horiz_variants,math.horiz_parts,math.horiz_italic_correction=check_variants(unicode,horiz_variants,splitter,unicodes)
         end
-    end
-    local parts = the_variants.parts
-    if parts then
-        local p = #parts
-        if p > 0 then
-            for i=1,p do
-                local pi = parts[i]
-                pi.glyph = unicodes[pi.component] or 0
-                pi.component = nil
-            end
-        else
-            parts = nil
+        if vert_variants then
+          math.vert_variants,math.vert_parts,math.vert_italic_correction=check_variants(unicode,vert_variants,splitter,unicodes)
         end
-    end
-    local italic_correction = the_variants.italic_correction
-    if italic_correction and italic_correction == 0 then
-        italic_correction = nil
-    end
-    return variants, parts, italic_correction
-end
-
-actions["analyze math"] = function(data,filename,raw)
-    if raw.math then
-        data.metadata.math = raw.math
-        local unicodes = data.resources.unicodes
-        local splitter = data.helpers.tounicodetable
-        for unicode, description in next, data.descriptions do
-            local glyph          = description.glyph
-            local mathkerns      = glyph.mathkern -- singular
-            local horiz_variants = glyph.horiz_variants
-            local vert_variants  = glyph.vert_variants
-            local top_accent     = glyph.top_accent
-            if mathkerns or horiz_variants or vert_variants or top_accent then
-                local math = { }
-                if top_accent then
-                    math.top_accent = top_accent
-                end
-                if mathkerns then
-                    for k, v in next, mathkerns do
-                        if not next(v) then
-                            mathkerns[k] = nil
-                        else
-                            for k, v in next, v do
-                                if v == 0 then
-                                    k[v] = nil -- height / kern can be zero
-                                end
-                            end
-                        end
-                    end
-                    math.kerns = mathkerns
-                end
-                if horiz_variants then
-                    math.horiz_variants, math.horiz_parts, math.horiz_italic_correction = check_variants(unicode,horiz_variants,splitter,unicodes)
-                end
-                if vert_variants then
-                    math.vert_variants, math.vert_parts, math.vert_italic_correction = check_variants(unicode,vert_variants,splitter,unicodes)
-                end
-                local italic_correction = description.italic
-                if italic_correction and italic_correction ~= 0 then
-                    math.italic_correction = italic_correction
-                end
-                description.math = math
-            end
+        local italic_correction=description.italic
+        if italic_correction and italic_correction~=0 then
+          math.italic_correction=italic_correction
         end
+        description.math=math
+      end
     end
+  end
 end
-
-actions["reorganize glyph kerns"] = function(data,filename,raw)
-    local descriptions = data.descriptions
-    local resources    = data.resources
-    local unicodes     = resources.unicodes
-    for unicode, description in next, descriptions do
-        local kerns = description.glyph.kerns
-        if kerns then
-            local newkerns = { }
-            for k, kern in next, kerns do
-                local name   = kern.char
-                local offset = kern.off
-                local lookup = kern.lookup
-                if name and offset and lookup then
-                    local unicode = unicodes[name]
-                    if unicode then
-                        if type(lookup) == "table" then
-                            for l=1,#lookup do
-                                local lookup = lookup[l]
-                                local lookupkerns = newkerns[lookup]
-                                if lookupkerns then
-                                    lookupkerns[unicode] = offset
-                                else
-                                    newkerns[lookup] = { [unicode] = offset }
-                                end
-                            end
-                        else
-                            local lookupkerns = newkerns[lookup]
-                            if lookupkerns then
-                                lookupkerns[unicode] = offset
-                            else
-                                newkerns[lookup] = { [unicode] = offset }
-                            end
-                        end
-                    elseif trace_loading then
-                        report_otf("problems with unicode %s of kern %s of glyph U+%05X",name,k,unicode)
-                    end
+actions["reorganize glyph kerns"]=function(data,filename,raw)
+  local descriptions=data.descriptions
+  local resources=data.resources
+  local unicodes=resources.unicodes
+  for unicode,description in next,descriptions do
+    local kerns=description.glyph.kerns
+    if kerns then
+      local newkerns={}
+      for k,kern in next,kerns do
+        local name=kern.char
+        local offset=kern.off
+        local lookup=kern.lookup
+        if name and offset and lookup then
+          local unicode=unicodes[name]
+          if unicode then
+            if type(lookup)=="table" then
+              for l=1,#lookup do
+                local lookup=lookup[l]
+                local lookupkerns=newkerns[lookup]
+                if lookupkerns then
+                  lookupkerns[unicode]=offset
+                else
+                  newkerns[lookup]={ [unicode]=offset }
                 end
-            end
-            description.kerns = newkerns
-        end
-    end
-end
-
-actions["merge kern classes"] = function(data,filename,raw)
-    local gposlist = raw.gpos
-    if gposlist then
-        local descriptions = data.descriptions
-        local resources    = data.resources
-        local unicodes     = resources.unicodes
-        local splitter     = data.helpers.tounicodetable
-        for gp=1,#gposlist do
-            local gpos = gposlist[gp]
-            local subtables = gpos.subtables
-            if subtables then
-                for s=1,#subtables do
-                    local subtable = subtables[s]
-                    local kernclass = subtable.kernclass -- name is inconsistent with anchor_classes
-                    if kernclass then -- the next one is quite slow
-                        local split = { } -- saves time
-                        for k=1,#kernclass do
-                            local kcl = kernclass[k]
-                            local firsts  = kcl.firsts
-                            local seconds = kcl.seconds
-                            local offsets = kcl.offsets
-                            local lookups = kcl.lookup  -- singular
-                            if type(lookups) ~= "table" then
-                                lookups = { lookups }
-                            end
-                         -- if offsets[1] == nil then
-                         --     offsets[1] = ""
-                         -- end
-                            -- we can check the max in the loop
-                         -- local maxseconds = getn(seconds)
-                            for n, s in next, firsts do
-                                split[s] = split[s] or lpegmatch(splitter,s)
-                            end
-                            local maxseconds = 0
-                            for n, s in next, seconds do
-                                if n > maxseconds then
-                                    maxseconds = n
-                                end
-                                split[s] = split[s] or lpegmatch(splitter,s)
-                            end
-                            for l=1,#lookups do
-                                local lookup = lookups[l]
-                                for fk=1,#firsts do -- maxfirsts ?
-                                    local fv = firsts[fk]
-                                    local splt = split[fv]
-                                    if splt then
-                                        local extrakerns = { }
-                                        local baseoffset = (fk-1) * maxseconds
-                                        for sk=2,maxseconds do -- will become 1 based in future luatex
-                                            local sv = seconds[sk]
-                                     -- for sk, sv in next, seconds do
-                                            local splt = split[sv]
-                                            if splt then -- redundant test
-                                                local offset = offsets[baseoffset + sk]
-                                                if offset then
-                                                    for i=1,#splt do
-                                                        extrakerns[splt[i]] = offset
-                                                    end
-                                                end
-                                            end
-                                        end
-                                        for i=1,#splt do
-                                            local first_unicode = splt[i]
-                                            local description = descriptions[first_unicode]
-                                            if description then
-                                                local kerns = description.kerns
-                                                if not kerns then
-                                                    kerns = { } -- unicode indexed !
-                                                    description.kerns = kerns
-                                                end
-                                                local lookupkerns = kerns[lookup]
-                                                if not lookupkerns then
-                                                    lookupkerns = { }
-                                                    kerns[lookup] = lookupkerns
-                                                end
-                                                for second_unicode, kern in next, extrakerns do
-                                                    lookupkerns[second_unicode] = kern
-                                                end
-                                            elseif trace_loading then
-                                                report_otf("no glyph data for U+%05X", first_unicode)
-                                            end
-                                        end
-                                    end
-                                end
-                            end
+              end
+            else
+              local lookupkerns=newkerns[lookup]
+              if lookupkerns then
+                lookupkerns[unicode]=offset
+              else
+                newkerns[lookup]={ [unicode]=offset }
+              end
+            end
+          elseif trace_loading then
+            report_otf("problems with unicode %s of kern %s of glyph U+%05X",name,k,unicode)
+          end
+        end
+      end
+      description.kerns=newkerns
+    end
+  end
+end
+actions["merge kern classes"]=function(data,filename,raw)
+  local gposlist=raw.gpos
+  if gposlist then
+    local descriptions=data.descriptions
+    local resources=data.resources
+    local unicodes=resources.unicodes
+    local splitter=data.helpers.tounicodetable
+    for gp=1,#gposlist do
+      local gpos=gposlist[gp]
+      local subtables=gpos.subtables
+      if subtables then
+        for s=1,#subtables do
+          local subtable=subtables[s]
+          local kernclass=subtable.kernclass 
+          if kernclass then 
+            local split={} 
+            for k=1,#kernclass do
+              local kcl=kernclass[k]
+              local firsts=kcl.firsts
+              local seconds=kcl.seconds
+              local offsets=kcl.offsets
+              local lookups=kcl.lookup 
+              if type(lookups)~="table" then
+                lookups={ lookups }
+              end
+              for n,s in next,firsts do
+                split[s]=split[s] or lpegmatch(splitter,s)
+              end
+              local maxseconds=0
+              for n,s in next,seconds do
+                if n>maxseconds then
+                  maxseconds=n
+                end
+                split[s]=split[s] or lpegmatch(splitter,s)
+              end
+              for l=1,#lookups do
+                local lookup=lookups[l]
+                for fk=1,#firsts do 
+                  local fv=firsts[fk]
+                  local splt=split[fv]
+                  if splt then
+                    local extrakerns={}
+                    local baseoffset=(fk-1)*maxseconds
+                    for sk=2,maxseconds do 
+                      local sv=seconds[sk]
+                      local splt=split[sv]
+                      if splt then 
+                        local offset=offsets[baseoffset+sk]
+                        if offset then
+                          for i=1,#splt do
+                            extrakerns[splt[i]]=offset
+                          end
                         end
-                        subtable.kernclass = { }
-                    end
-                end
-            end
-        end
-    end
-end
-
-actions["check glyphs"] = function(data,filename,raw)
-    for unicode, description in next, data.descriptions do
-        description.glyph = nil
-    end
-end
-
--- future versions will remove _
-
-actions["check metadata"] = function(data,filename,raw)
-    local metadata = data.metadata
-    for _, k in next, mainfields do
-        if valid_fields[k] then
-            local v = raw[k]
-            if not metadata[k] then
-                metadata[k] = v
-            end
-        end
-    end
- -- metadata.pfminfo = raw.pfminfo -- not already done?
-    local ttftables = metadata.ttf_tables
-    if ttftables then
-        for i=1,#ttftables do
-            ttftables[i].data = "deleted"
-        end
-    end
-end
-
-actions["cleanup tables"] = function(data,filename,raw)
-    data.resources.indices = nil -- not needed
-    data.helpers = nil
-end
-
--- kern: ttf has a table with kerns
---
--- Weird, as maxfirst and maxseconds can have holes, first seems to be indexed, but
--- seconds can start at 2 .. this need to be fixed as getn as well as # are sort of
--- unpredictable alternatively we could force an [1] if not set (maybe I will do that
--- anyway).
-
--- we can share { } as it is never set
-
---- ligatures have an extra specification.char entry that we don't use
-
-actions["reorganize glyph lookups"] = function(data,filename,raw)
-    local resources    = data.resources
-    local unicodes     = resources.unicodes
-    local descriptions = data.descriptions
-    local splitter     = data.helpers.tounicodelist
-
-    local lookuptypes  = resources.lookuptypes
-
-    for unicode, description in next, descriptions do
-        local lookups = description.glyph.lookups
-        if lookups then
-            for tag, lookuplist in next, lookups do
-                for l=1,#lookuplist do
-                    local lookup        = lookuplist[l]
-                    local specification = lookup.specification
-                    local lookuptype    = lookup.type
-                    local lt = lookuptypes[tag]
-                    if not lt then
-                        lookuptypes[tag] = lookuptype
-                    elseif lt ~= lookuptype then
-                        report_otf("conflicting lookuptypes: %s => %s and %s",tag,lt,lookuptype)
-                    end
-                    if lookuptype == "ligature" then
-                        lookuplist[l] = { lpegmatch(splitter,specification.components) }
-                    elseif lookuptype == "alternate" then
-                        lookuplist[l] = { lpegmatch(splitter,specification.components) }
-                    elseif lookuptype == "substitution" then
-                        lookuplist[l] = unicodes[specification.variant]
-                    elseif lookuptype == "multiple" then
-                        lookuplist[l] = { lpegmatch(splitter,specification.components) }
-                    elseif lookuptype == "position" then
-                        lookuplist[l] = {
-                            specification.x or 0,
-                            specification.y or 0,
-                            specification.h or 0,
-                            specification.v or 0
-                        }
-                    elseif lookuptype == "pair" then
-                        local one    = specification.offsets[1]
-                        local two    = specification.offsets[2]
-                        local paired = unicodes[specification.paired]
-                        if one then
-                            if two then
-                                lookuplist[l] = { paired, { one.x or 0, one.y or 0, one.h or 0, one.v or 0 }, { two.x or 0, two.y or 0, two.h or 0, two.v or 0 } }
-                            else
-                                lookuplist[l] = { paired, { one.x or 0, one.y or 0, one.h or 0, one.v or 0 } }
-                            end
-                        else
-                            if two then
-                                lookuplist[l] = { paired, { }, { two.x or 0, two.y or 0, two.h or 0, two.v or 0} } -- maybe nil instead of { }
-                            else
-                                lookuplist[l] = { paired }
-                            end
+                      end
+                    end
+                    for i=1,#splt do
+                      local first_unicode=splt[i]
+                      local description=descriptions[first_unicode]
+                      if description then
+                        local kerns=description.kerns
+                        if not kerns then
+                          kerns={} 
+                          description.kerns=kerns
                         end
-                    end
-                end
-            end
-            local slookups, mlookups
-            for tag, lookuplist in next, lookups do
-                if #lookuplist == 1 then
-                    if slookups then
-                        slookups[tag] = lookuplist[1]
-                    else
-                        slookups = { [tag] = lookuplist[1] }
-                    end
-                else
-                    if mlookups then
-                        mlookups[tag] = lookuplist
-                    else
-                        mlookups = { [tag] = lookuplist }
-                    end
-                end
-            end
-            if slookups then
-                description.slookups = slookups
-            end
-            if mlookups then
-                description.mlookups = mlookups
-            end
-        end
-    end
-
-end
-
-actions["reorganize glyph anchors"] = function(data,filename,raw) -- when we replace inplace we safe entries
-    local descriptions = data.descriptions
-    for unicode, description in next, descriptions do
-        local anchors = description.glyph.anchors
-        if anchors then
-            for class, data in next, anchors do
-                if class == "baselig" then
-                    for tag, specification in next, data do
-                        for i=1,#specification do
-                            local si = specification[i]
-                            specification[i] = { si.x or 0, si.y or 0 }
+                        local lookupkerns=kerns[lookup]
+                        if not lookupkerns then
+                          lookupkerns={}
+                          kerns[lookup]=lookupkerns
                         end
-                    end
-                else
-                    for tag, specification in next, data do
-                        data[tag] = { specification.x or 0, specification.y or 0 }
-                    end
-                end
-            end
-            description.anchors = anchors
+                        for second_unicode,kern in next,extrakerns do
+                          lookupkerns[second_unicode]=kern
+                        end
+                      elseif trace_loading then
+                        report_otf("no glyph data for U+%05X",first_unicode)
+                      end
+                    end
+                  end
+                end
+              end
+            end
+            subtable.kernclass={}
+          end
+        end
+      end
+    end
+  end
+end
+actions["check glyphs"]=function(data,filename,raw)
+  for unicode,description in next,data.descriptions do
+    description.glyph=nil
+  end
+end
+actions["check metadata"]=function(data,filename,raw)
+  local metadata=data.metadata
+  for _,k in next,mainfields do
+    if valid_fields[k] then
+      local v=raw[k]
+      if not metadata[k] then
+        metadata[k]=v
+      end
+    end
+  end
+  local ttftables=metadata.ttf_tables
+  if ttftables then
+    for i=1,#ttftables do
+      ttftables[i].data="deleted"
+    end
+  end
+end
+actions["cleanup tables"]=function(data,filename,raw)
+  data.resources.indices=nil 
+  data.helpers=nil
+end
+actions["reorganize glyph lookups"]=function(data,filename,raw)
+  local resources=data.resources
+  local unicodes=resources.unicodes
+  local descriptions=data.descriptions
+  local splitter=data.helpers.tounicodelist
+  local lookuptypes=resources.lookuptypes
+  for unicode,description in next,descriptions do
+    local lookups=description.glyph.lookups
+    if lookups then
+      for tag,lookuplist in next,lookups do
+        for l=1,#lookuplist do
+          local lookup=lookuplist[l]
+          local specification=lookup.specification
+          local lookuptype=lookup.type
+          local lt=lookuptypes[tag]
+          if not lt then
+            lookuptypes[tag]=lookuptype
+          elseif lt~=lookuptype then
+            report_otf("conflicting lookuptypes: %s => %s and %s",tag,lt,lookuptype)
+          end
+          if lookuptype=="ligature" then
+            lookuplist[l]={ lpegmatch(splitter,specification.components) }
+          elseif lookuptype=="alternate" then
+            lookuplist[l]={ lpegmatch(splitter,specification.components) }
+          elseif lookuptype=="substitution" then
+            lookuplist[l]=unicodes[specification.variant]
+          elseif lookuptype=="multiple" then
+            lookuplist[l]={ lpegmatch(splitter,specification.components) }
+          elseif lookuptype=="position" then
+            lookuplist[l]={
+              specification.x or 0,
+              specification.y or 0,
+              specification.h or 0,
+              specification.v or 0
+            }
+          elseif lookuptype=="pair" then
+            local one=specification.offsets[1]
+            local two=specification.offsets[2]
+            local paired=unicodes[specification.paired]
+            if one then
+              if two then
+                lookuplist[l]={ paired,{ one.x or 0,one.y or 0,one.h or 0,one.v or 0 },{ two.x or 0,two.y or 0,two.h or 0,two.v or 0 } }
+              else
+                lookuplist[l]={ paired,{ one.x or 0,one.y or 0,one.h or 0,one.v or 0 } }
+              end
+            else
+              if two then
+                lookuplist[l]={ paired,{},{ two.x or 0,two.y or 0,two.h or 0,two.v or 0} } 
+              else
+                lookuplist[l]={ paired }
+              end
+            end
+          end
+        end
+      end
+      local slookups,mlookups
+      for tag,lookuplist in next,lookups do
+        if #lookuplist==1 then
+          if slookups then
+            slookups[tag]=lookuplist[1]
+          else
+            slookups={ [tag]=lookuplist[1] }
+          end
+        else
+          if mlookups then
+            mlookups[tag]=lookuplist
+          else
+            mlookups={ [tag]=lookuplist }
+          end
+        end
+      end
+      if slookups then
+        description.slookups=slookups
+      end
+      if mlookups then
+        description.mlookups=mlookups
+      end
+    end
+  end
+end
+actions["reorganize glyph anchors"]=function(data,filename,raw) 
+  local descriptions=data.descriptions
+  for unicode,description in next,descriptions do
+    local anchors=description.glyph.anchors
+    if anchors then
+      for class,data in next,anchors do
+        if class=="baselig" then
+          for tag,specification in next,data do
+            for i=1,#specification do
+              local si=specification[i]
+              specification[i]={ si.x or 0,si.y or 0 }
+            end
+          end
+        else
+          for tag,specification in next,data do
+            data[tag]={ specification.x or 0,specification.y or 0 }
+          end
         end
+      end
+      description.anchors=anchors
     end
+  end
 end
-
--- modes: node, base, none
-
 function otf.setfeatures(tfmdata,features)
-    local okay = constructors.initializefeatures("otf",tfmdata,features,trace_features,report_otf)
-    if okay then
-        return constructors.collectprocessors("otf",tfmdata,features,trace_features,report_otf)
-    else
-        return { } -- will become false
-    end
+  local okay=constructors.initializefeatures("otf",tfmdata,features,trace_features,report_otf)
+  if okay then
+    return constructors.collectprocessors("otf",tfmdata,features,trace_features,report_otf)
+  else
+    return {} 
+  end
 end
-
--- the first version made a top/mid/not extensible table, now we just
--- pass on the variants data and deal with it in the tfm scaler (there
--- is no longer an extensible table anyway)
---
--- we cannot share descriptions as virtual fonts might extend them (ok,
--- we could use a cache with a hash
---
--- we already assing an empty tabel to characters as we can add for
--- instance protruding info and loop over characters; one is not supposed
--- to change descriptions and if one does so one should make a copy!
-
 local function copytotfm(data,cache_id)
-    if data then
-        local metadata       = data.metadata
-        local resources      = data.resources
-        local properties     = derivetable(data.properties)
-        local descriptions   = derivetable(data.descriptions)
-        local goodies        = derivetable(data.goodies)
-        local characters     = { }
-        local parameters     = { }
-        local mathparameters = { }
-        --
-        local pfminfo        = metadata.pfminfo  or { }
-        local resources      = data.resources
-        local unicodes       = resources.unicodes
-     -- local mode           = data.mode or "base"
-        local spaceunits     = 500
-        local spacer         = "space"
-        local designsize     = metadata.designsize or metadata.design_size or 100
-        local mathspecs      = metadata.math
-        --
-        if designsize == 0 then
-            designsize = 100
-        end
-        if mathspecs then
-            for name, value in next, mathspecs do
-                mathparameters[name] = value
-            end
-        end
-        for unicode, _ in next, data.descriptions do -- use parent table
-            characters[unicode] = { }
-        end
-        if mathspecs then
-            -- we could move this to the scaler but not that much is saved
-            -- and this is cleaner
-            for unicode, character in next, characters do
-                local d = descriptions[unicode]
-                local m = d.math
-                if m then
-                    -- watch out: luatex uses horiz_variants for the parts
-                    local variants = m.horiz_variants
-                    local parts    = m.horiz_parts
-                 -- local done     = { [unicode] = true }
-                    if variants then
-                        local c = character
-                        for i=1,#variants do
-                            local un = variants[i]
-                         -- if done[un] then
-                         --  -- report_otf("skipping cyclic reference U+%05X in math variant U+%05X",un,unicode)
-                         -- else
-                                c.next = un
-                                c = characters[un]
-                         --     done[un] = true
-                         -- end
-                        end -- c is now last in chain
-                        c.horiz_variants = parts
-                    elseif parts then
-                        character.horiz_variants = parts
-                    end
-                    local variants = m.vert_variants
-                    local parts    = m.vert_parts
-                 -- local done     = { [unicode] = true }
-                    if variants then
-                        local c = character
-                        for i=1,#variants do
-                            local un = variants[i]
-                         -- if done[un] then
-                         --  -- report_otf("skipping cyclic reference U+%05X in math variant U+%05X",un,unicode)
-                         -- else
-                                c.next = un
-                                c = characters[un]
-                         --     done[un] = true
-                         -- end
-                        end -- c is now last in chain
-                        c.vert_variants = parts
-                    elseif parts then
-                        character.vert_variants = parts
-                    end
-                    local italic_correction = m.vert_italic_correction
-                    if italic_correction then
-                        character.vert_italic_correction = italic_correction -- was c.
-                    end
-                    local top_accent = m.top_accent
-                    if top_accent then
-                        character.top_accent = top_accent
-                    end
-                    local kerns = m.kerns
-                    if kerns then
-                        character.mathkerns = kerns
-                    end
-                end
-            end
-        end
-        -- end math
-        local monospaced  = metadata.isfixedpitch or (pfminfo.panose and pfminfo.panose.proportion == "Monospaced")
-        local charwidth   = pfminfo.avgwidth -- or unset
-        local italicangle = metadata.italicangle
-        local charxheight = pfminfo.os2_xheight and pfminfo.os2_xheight > 0 and pfminfo.os2_xheight
-        properties.monospaced  = monospaced
-        parameters.italicangle = italicangle
-        parameters.charwidth   = charwidth
-        parameters.charxheight = charxheight
-        --
-        local space  = 0x0020 -- unicodes['space'], unicodes['emdash']
-        local emdash = 0x2014 -- unicodes['space'], unicodes['emdash']
-        if monospaced then
-            if descriptions[space] then
-                spaceunits, spacer = descriptions[space].width, "space"
-            end
-            if not spaceunits and descriptions[emdash] then
-                spaceunits, spacer = descriptions[emdash].width, "emdash"
-            end
-            if not spaceunits and charwidth then
-                spaceunits, spacer = charwidth, "charwidth"
-            end
-        else
-            if descriptions[space] then
-                spaceunits, spacer = descriptions[space].width, "space"
-            end
-            if not spaceunits and descriptions[emdash] then
-                spaceunits, spacer = descriptions[emdash].width/2, "emdash/2"
-            end
-            if not spaceunits and charwidth then
-                spaceunits, spacer = charwidth, "charwidth"
-            end
-        end
-        spaceunits = tonumber(spaceunits) or 500 -- brrr
-        -- we need a runtime lookup because of running from cdrom or zip, brrr (shouldn't we use the basename then?)
-        local filename = constructors.checkedfilename(resources)
-        local fontname = metadata.fontname
-        local fullname = metadata.fullname or fontname
-        local units    = metadata.units_per_em or 1000
-        --
-        if units == 0 then -- catch bugs in fonts
-            units = 1000
-            metadata.units_per_em = 1000
-        end
-        --
-        parameters.slant         = 0
-        parameters.space         = spaceunits          -- 3.333 (cmr10)
-        parameters.space_stretch = units/2   --  500   -- 1.666 (cmr10)
-        parameters.space_shrink  = 1*units/3 --  333   -- 1.111 (cmr10)
-        parameters.x_height      = 2*units/5 --  400
-        parameters.quad          = units     -- 1000
-        if spaceunits < 2*units/5 then
-            -- todo: warning
-        end
-        if italicangle then
-            parameters.italicangle  = italicangle
-            parameters.italicfactor = math.cos(math.rad(90+italicangle))
-            parameters.slant        = - math.round(math.tan(italicangle*math.pi/180))
-        end
-        if monospaced then
-            parameters.space_stretch = 0
-            parameters.space_shrink  = 0
-        elseif syncspace then --
-            parameters.space_stretch = spaceunits/2
-            parameters.space_shrink  = spaceunits/3
-        end
-        parameters.extra_space = parameters.space_shrink -- 1.111 (cmr10)
-        if charxheight then
-            parameters.x_height = charxheight
-        else
-            local x = 0x78 -- unicodes['x']
-            if x then
-                local x = descriptions[x]
-                if x then
-                    parameters.x_height = x.height
-                end
-            end
-        end
-        --
-        parameters.designsize = (designsize/10)*65536
-        parameters.ascender   = abs(metadata.ascent  or 0)
-        parameters.descender  = abs(metadata.descent or 0)
-        parameters.units      = units
-        --
-        properties.space         = spacer
-        properties.encodingbytes = 2
-        properties.format        = data.format or fonts.formats[filename] or "opentype"
-        properties.noglyphnames  = true
-        properties.filename      = filename
-        properties.fontname      = fontname
-        properties.fullname      = fullname
-        properties.psname        = fontname or fullname
-        properties.name          = filename or fullname
-        --
-     -- properties.name          = specification.name
-     -- properties.sub           = specification.sub
-        return {
-            characters     = characters,
-            descriptions   = descriptions,
-            parameters     = parameters,
-            mathparameters = mathparameters,
-            resources      = resources,
-            properties     = properties,
-            goodies        = goodies,
-        }
-    end
+  if data then
+    local metadata=data.metadata
+    local resources=data.resources
+    local properties=derivetable(data.properties)
+    local descriptions=derivetable(data.descriptions)
+    local goodies=derivetable(data.goodies)
+    local characters={}
+    local parameters={}
+    local mathparameters={}
+    local pfminfo=metadata.pfminfo or {}
+    local resources=data.resources
+    local unicodes=resources.unicodes
+    local spaceunits=500
+    local spacer="space"
+    local designsize=metadata.designsize or metadata.design_size or 100
+    local mathspecs=metadata.math
+    if designsize==0 then
+      designsize=100
+    end
+    if mathspecs then
+      for name,value in next,mathspecs do
+        mathparameters[name]=value
+      end
+    end
+    for unicode,_ in next,data.descriptions do 
+      characters[unicode]={}
+    end
+    if mathspecs then
+      for unicode,character in next,characters do
+        local d=descriptions[unicode]
+        local m=d.math
+        if m then
+          local variants=m.horiz_variants
+          local parts=m.horiz_parts
+          if variants then
+            local c=character
+            for i=1,#variants do
+              local un=variants[i]
+                c.next=un
+                c=characters[un]
+            end 
+            c.horiz_variants=parts
+          elseif parts then
+            character.horiz_variants=parts
+          end
+          local variants=m.vert_variants
+          local parts=m.vert_parts
+          if variants then
+            local c=character
+            for i=1,#variants do
+              local un=variants[i]
+                c.next=un
+                c=characters[un]
+            end 
+            c.vert_variants=parts
+          elseif parts then
+            character.vert_variants=parts
+          end
+          local italic_correction=m.vert_italic_correction
+          if italic_correction then
+            character.vert_italic_correction=italic_correction 
+          end
+          local top_accent=m.top_accent
+          if top_accent then
+            character.top_accent=top_accent
+          end
+          local kerns=m.kerns
+          if kerns then
+            character.mathkerns=kerns
+          end
+        end
+      end
+    end
+    local monospaced=metadata.isfixedpitch or (pfminfo.panose and pfminfo.panose.proportion=="Monospaced")
+    local charwidth=pfminfo.avgwidth 
+    local italicangle=metadata.italicangle
+    local charxheight=pfminfo.os2_xheight and pfminfo.os2_xheight>0 and pfminfo.os2_xheight
+    properties.monospaced=monospaced
+    parameters.italicangle=italicangle
+    parameters.charwidth=charwidth
+    parameters.charxheight=charxheight
+    local space=0x0020 
+    local emdash=0x2014 
+    if monospaced then
+      if descriptions[space] then
+        spaceunits,spacer=descriptions[space].width,"space"
+      end
+      if not spaceunits and descriptions[emdash] then
+        spaceunits,spacer=descriptions[emdash].width,"emdash"
+      end
+      if not spaceunits and charwidth then
+        spaceunits,spacer=charwidth,"charwidth"
+      end
+    else
+      if descriptions[space] then
+        spaceunits,spacer=descriptions[space].width,"space"
+      end
+      if not spaceunits and descriptions[emdash] then
+        spaceunits,spacer=descriptions[emdash].width/2,"emdash/2"
+      end
+      if not spaceunits and charwidth then
+        spaceunits,spacer=charwidth,"charwidth"
+      end
+    end
+    spaceunits=tonumber(spaceunits) or 500
+    local filename=constructors.checkedfilename(resources)
+    local fontname=metadata.fontname
+    local fullname=metadata.fullname or fontname
+    local units=metadata.units_per_em or 1000
+    if units==0 then 
+      units=1000
+      metadata.units_per_em=1000
+    end
+    parameters.slant=0
+    parameters.space=spaceunits     
+    parameters.space_stretch=units/2  
+    parameters.space_shrink=1*units/3 
+    parameters.x_height=2*units/5 
+    parameters.quad=units   
+    if spaceunits<2*units/5 then
+    end
+    if italicangle then
+      parameters.italicangle=italicangle
+      parameters.italicfactor=math.cos(math.rad(90+italicangle))
+      parameters.slant=- math.round(math.tan(italicangle*math.pi/180))
+    end
+    if monospaced then
+      parameters.space_stretch=0
+      parameters.space_shrink=0
+    elseif syncspace then 
+      parameters.space_stretch=spaceunits/2
+      parameters.space_shrink=spaceunits/3
+    end
+    parameters.extra_space=parameters.space_shrink 
+    if charxheight then
+      parameters.x_height=charxheight
+    else
+      local x=0x78 
+      if x then
+        local x=descriptions[x]
+        if x then
+          parameters.x_height=x.height
+        end
+      end
+    end
+    parameters.designsize=(designsize/10)*65536
+    parameters.ascender=abs(metadata.ascent or 0)
+    parameters.descender=abs(metadata.descent or 0)
+    parameters.units=units
+    properties.space=spacer
+    properties.encodingbytes=2
+    properties.format=data.format or fonts.formats[filename] or "opentype"
+    properties.noglyphnames=true
+    properties.filename=filename
+    properties.fontname=fontname
+    properties.fullname=fullname
+    properties.psname=fontname or fullname
+    properties.name=filename or fullname
+    return {
+      characters=characters,
+      descriptions=descriptions,
+      parameters=parameters,
+      mathparameters=mathparameters,
+      resources=resources,
+      properties=properties,
+      goodies=goodies,
+    }
+  end
 end
-
 local function otftotfm(specification)
-    local cache_id = specification.hash
-    local tfmdata  = containers.read(constructors.cache,cache_id)
-    if not tfmdata then
-        local name     = specification.name
-        local sub      = specification.sub
-        local filename = specification.filename
-        local format   = specification.format
-        local features = specification.features.normal
-        local rawdata  = otf.load(filename,format,sub,features and features.featurefile)
-        if rawdata and next(rawdata) then
-            rawdata.lookuphash = { }
-            tfmdata = copytotfm(rawdata,cache_id)
-            if tfmdata and next(tfmdata) then
-                -- at this moment no characters are assigned yet, only empty slots
-                local features     = constructors.checkedfeatures("otf",features)
-                local shared       = tfmdata.shared
-                if not shared then
-                    shared         = { }
-                    tfmdata.shared = shared
-                end
-                shared.rawdata     = rawdata
-             -- shared.features    = features -- default
-                shared.dynamics    = { }
-             -- shared.processes   = { }
-                tfmdata.changed    = { }
-                shared.features    = features
-                shared.processes   = otf.setfeatures(tfmdata,features)
-            end
-        end
-        containers.write(constructors.cache,cache_id,tfmdata)
-    end
-    return tfmdata
+  local cache_id=specification.hash
+  local tfmdata=containers.read(constructors.cache,cache_id)
+  if not tfmdata then
+    local name=specification.name
+    local sub=specification.sub
+    local filename=specification.filename
+    local format=specification.format
+    local features=specification.features.normal
+    local rawdata=otf.load(filename,format,sub,features and features.featurefile)
+    if rawdata and next(rawdata) then
+      rawdata.lookuphash={}
+      tfmdata=copytotfm(rawdata,cache_id)
+      if tfmdata and next(tfmdata) then
+        local features=constructors.checkedfeatures("otf",features)
+        local shared=tfmdata.shared
+        if not shared then
+          shared={}
+          tfmdata.shared=shared
+        end
+        shared.rawdata=rawdata
+        shared.dynamics={}
+        tfmdata.changed={}
+        shared.features=features
+        shared.processes=otf.setfeatures(tfmdata,features)
+      end
+    end
+    containers.write(constructors.cache,cache_id,tfmdata)
+  end
+  return tfmdata
 end
-
 local function read_from_otf(specification)
-    local tfmdata = otftotfm(specification)
-    if tfmdata then
-        -- this late ? .. needs checking
-        tfmdata.properties.name = specification.name
-        tfmdata.properties.sub  = specification.sub
-        --
-        tfmdata = constructors.scale(tfmdata,specification)
-        local allfeatures = tfmdata.shared.features or specification.features.normal
-        constructors.applymanipulators("otf",tfmdata,allfeatures,trace_features,report_otf)
-        constructors.setname(tfmdata,specification) -- only otf?
-        fonts.loggers.register(tfmdata,file.suffix(specification.filename),specification)
-    end
-    return tfmdata
+  local tfmdata=otftotfm(specification)
+  if tfmdata then
+    tfmdata.properties.name=specification.name
+    tfmdata.properties.sub=specification.sub
+    tfmdata=constructors.scale(tfmdata,specification)
+    local allfeatures=tfmdata.shared.features or specification.features.normal
+    constructors.applymanipulators("otf",tfmdata,allfeatures,trace_features,report_otf)
+    constructors.setname(tfmdata,specification) 
+    fonts.loggers.register(tfmdata,file.suffix(specification.filename),specification)
+  end
+  return tfmdata
 end
-
 local function checkmathsize(tfmdata,mathsize)
-    local mathdata = tfmdata.shared.rawdata.metadata.math
-    local mathsize = tonumber(mathsize)
-    if mathdata then -- we cannot use mathparameters as luatex will complain
-        local parameters = tfmdata.parameters
-        parameters.scriptpercentage       = mathdata.ScriptPercentScaleDown
-        parameters.scriptscriptpercentage = mathdata.ScriptScriptPercentScaleDown
-        parameters.mathsize               = mathsize
-    end
+  local mathdata=tfmdata.shared.rawdata.metadata.math
+  local mathsize=tonumber(mathsize)
+  if mathdata then 
+    local parameters=tfmdata.parameters
+    parameters.scriptpercentage=mathdata.ScriptPercentScaleDown
+    parameters.scriptscriptpercentage=mathdata.ScriptScriptPercentScaleDown
+    parameters.mathsize=mathsize
+  end
 end
-
 registerotffeature {
-    name         = "mathsize",
-    description  = "apply mathsize as specified in the font",
-    initializers = {
-        base = checkmathsize,
-        node = checkmathsize,
-    }
+  name="mathsize",
+  description="apply mathsize as specified in the font",
+  initializers={
+    base=checkmathsize,
+    node=checkmathsize,
+  }
 }
-
--- helpers
-
 function otf.collectlookups(rawdata,kind,script,language)
-    local sequences = rawdata.resources.sequences
-    if sequences then
-        local featuremap, featurelist = { }, { }
-        for s=1,#sequences do
-            local sequence = sequences[s]
-            local features = sequence.features
-            features = features and features[kind]
-            features = features and (features[script]   or features[default] or features[wildcard])
-            features = features and (features[language] or features[default] or features[wildcard])
-            if features then
-                local subtables = sequence.subtables
-                if subtables then
-                    for s=1,#subtables do
-                        local ss = subtables[s]
-                        if not featuremap[s] then
-                            featuremap[ss] = true
-                            featurelist[#featurelist+1] = ss
-                        end
-                    end
-                end
-            end
-        end
-        if #featurelist > 0 then
-            return featuremap, featurelist
-        end
-    end
-    return nil, nil
+  local sequences=rawdata.resources.sequences
+  if sequences then
+    local featuremap,featurelist={},{}
+    for s=1,#sequences do
+      local sequence=sequences[s]
+      local features=sequence.features
+      features=features and features[kind]
+      features=features and (features[script]  or features[default] or features[wildcard])
+      features=features and (features[language] or features[default] or features[wildcard])
+      if features then
+        local subtables=sequence.subtables
+        if subtables then
+          for s=1,#subtables do
+            local ss=subtables[s]
+            if not featuremap[s] then
+              featuremap[ss]=true
+              featurelist[#featurelist+1]=ss
+            end
+          end
+        end
+      end
+    end
+    if #featurelist>0 then
+      return featuremap,featurelist
+    end
+  end
+  return nil,nil
 end
-
--- readers
-
 local function check_otf(forced,specification,suffix,what)
-    local name = specification.name
-    if forced then
-        name = file.addsuffix(name,suffix,true)
-    end
-    local fullname = findbinfile(name,suffix) or ""
-    if fullname == "" then
-        fullname = fonts.names.getfilename(name,suffix) or ""
-    end
-    if fullname ~= "" then
-        specification.filename = fullname
-        specification.format   = what
-        return read_from_otf(specification)
-    end
+  local name=specification.name
+  if forced then
+    name=file.addsuffix(name,suffix,true)
+  end
+  local fullname=findbinfile(name,suffix) or ""
+  if fullname=="" then
+    fullname=fonts.names.getfilename(name,suffix) or ""
+  end
+  if fullname~="" then
+    specification.filename=fullname
+    specification.format=what
+    return read_from_otf(specification)
+  end
 end
-
 local function opentypereader(specification,suffix,what)
-    local forced = specification.forced or ""
-    if forced == "otf" then
-        return check_otf(true,specification,forced,"opentype")
-    elseif forced == "ttf" or forced == "ttc" or forced == "dfont" then
-        return check_otf(true,specification,forced,"truetype")
-    else
-        return check_otf(false,specification,suffix,what)
-    end
-end
-
-readers.opentype = opentypereader
-
-local formats = fonts.formats
-
-formats.otf   = "opentype"
-formats.ttf   = "truetype"
-formats.ttc   = "truetype"
-formats.dfont = "truetype"
-
-function readers.otf  (specification) return opentypereader(specification,"otf",formats.otf  ) end
-function readers.ttf  (specification) return opentypereader(specification,"ttf",formats.ttf  ) end
-function readers.ttc  (specification) return opentypereader(specification,"ttf",formats.ttc  ) end
+  local forced=specification.forced or ""
+  if forced=="otf" then
+    return check_otf(true,specification,forced,"opentype")
+  elseif forced=="ttf" or forced=="ttc" or forced=="dfont" then
+    return check_otf(true,specification,forced,"truetype")
+  else
+    return check_otf(false,specification,suffix,what)
+  end
+end
+readers.opentype=opentypereader
+local formats=fonts.formats
+formats.otf="opentype"
+formats.ttf="truetype"
+formats.ttc="truetype"
+formats.dfont="truetype"
+function readers.otf (specification) return opentypereader(specification,"otf",formats.otf ) end
+function readers.ttf (specification) return opentypereader(specification,"ttf",formats.ttf ) end
+function readers.ttc (specification) return opentypereader(specification,"ttf",formats.ttc ) end
 function readers.dfont(specification) return opentypereader(specification,"ttf",formats.dfont) end
-
--- this will be overloaded
-
 function otf.scriptandlanguage(tfmdata,attr)
-    local properties = tfmdata.properties
-    return properties.script or "dflt", properties.language or "dflt"
+  local properties=tfmdata.properties
+  return properties.script or "dflt",properties.language or "dflt"
 end
 
 end -- closure
 
 do -- begin closure to overcome local limits and interference
 
-if not modules then modules = { } end modules ['font-otb'] = {
-    version   = 1.001,
-    comment   = "companion to font-ini.mkiv",
-    author    = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
-    copyright = "PRAGMA ADE / ConTeXt Development Team",
-    license   = "see context related readme files"
+if not modules then modules={} end modules ['font-otb']={
+  version=1.001,
+  comment="companion to font-ini.mkiv",
+  author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+  copyright="PRAGMA ADE / ConTeXt Development Team",
+  license="see context related readme files"
 }
-local concat = table.concat
-local format, gmatch, gsub, find, match, lower, strip = string.format, string.gmatch, string.gsub, string.find, string.match, string.lower, string.strip
-local type, next, tonumber, tostring = type, next, tonumber, tostring
-local lpegmatch = lpeg.match
-local utfchar = utf.char
-
-local trace_baseinit         = false  trackers.register("otf.baseinit",         function(v) trace_baseinit         = v end)
-local trace_singles          = false  trackers.register("otf.singles",          function(v) trace_singles          = v end)
-local trace_multiples        = false  trackers.register("otf.multiples",        function(v) trace_multiples        = v end)
-local trace_alternatives     = false  trackers.register("otf.alternatives",     function(v) trace_alternatives     = v end)
-local trace_ligatures        = false  trackers.register("otf.ligatures",        function(v) trace_ligatures        = v end)
-local trace_ligatures_detail = false  trackers.register("otf.ligatures.detail", function(v) trace_ligatures_detail = v end)
-local trace_kerns            = false  trackers.register("otf.kerns",            function(v) trace_kerns            = v end)
-local trace_preparing        = false  trackers.register("otf.preparing",        function(v) trace_preparing        = v end)
-
-local report_prepare         = logs.reporter("fonts","otf prepare")
-
-local fonts                  = fonts
-local otf                    = fonts.handlers.otf
-
-local otffeatures            = otf.features
-local registerotffeature     = otffeatures.register
-
-otf.defaultbasealternate     = "none" -- first last
-
-local wildcard               = "*"
-local default                = "dflt"
-
+local concat=table.concat
+local format,gmatch,gsub,find,match,lower,strip=string.format,string.gmatch,string.gsub,string.find,string.match,string.lower,string.strip
+local type,next,tonumber,tostring=type,next,tonumber,tostring
+local lpegmatch=lpeg.match
+local utfchar=utf.char
+local trace_baseinit=false trackers.register("otf.baseinit",function(v) trace_baseinit=v end)
+local trace_singles=false trackers.register("otf.singles",function(v) trace_singles=v end)
+local trace_multiples=false trackers.register("otf.multiples",function(v) trace_multiples=v end)
+local trace_alternatives=false trackers.register("otf.alternatives",function(v) trace_alternatives=v end)
+local trace_ligatures=false trackers.register("otf.ligatures",function(v) trace_ligatures=v end)
+local trace_ligatures_detail=false trackers.register("otf.ligatures.detail",function(v) trace_ligatures_detail=v end)
+local trace_kerns=false trackers.register("otf.kerns",function(v) trace_kerns=v end)
+local trace_preparing=false trackers.register("otf.preparing",function(v) trace_preparing=v end)
+local report_prepare=logs.reporter("fonts","otf prepare")
+local fonts=fonts
+local otf=fonts.handlers.otf
+local otffeatures=otf.features
+local registerotffeature=otffeatures.register
+otf.defaultbasealternate="none" 
+local wildcard="*"
+local default="dflt"
 local function gref(descriptions,n)
-    if type(n) == "number" then
-        local name = descriptions[n].name
-        if name then
-            return format("U+%05X (%s)",n,name)
-        else
-            return format("U+%05X")
-        end
-    elseif n then
-        local num, nam = { }, { }
-        for i=2,#n do -- first is likely a key
-            local ni = n[i]
-            num[i-1] = format("U+%05X",ni)
-            nam[i-1] = descriptions[ni].name or "?"
-        end
-        return format("%s (%s)",concat(num," "), concat(nam," "))
+  if type(n)=="number" then
+    local name=descriptions[n].name
+    if name then
+      return format("U+%05X (%s)",n,name)
     else
-        return "?"
+      return format("U+%05X")
+    end
+  elseif n then
+    local num,nam={},{}
+    for i=2,#n do 
+      local ni=n[i]
+      num[i-1]=format("U+%05X",ni)
+      nam[i-1]=descriptions[ni].name or "?"
     end
+    return format("%s (%s)",concat(num," "),concat(nam," "))
+  else
+    return "?"
+  end
 end
-
 local function cref(feature,lookupname)
-    if lookupname then
-        return format("feature %s, lookup %s",feature,lookupname)
-    else
-        return format("feature %s",feature)
-    end
+  if lookupname then
+    return format("feature %s, lookup %s",feature,lookupname)
+  else
+    return format("feature %s",feature)
+  end
 end
-
 local function report_alternate(feature,lookupname,descriptions,unicode,replacement,value,comment)
-    report_prepare("%s: base alternate %s => %s (%s => %s)",cref(feature,lookupname),
-        gref(descriptions,unicode),replacement and gref(descriptions,replacement) or "-",
-        tostring(value),comment)
+  report_prepare("%s: base alternate %s => %s (%s => %s)",cref(feature,lookupname),
+    gref(descriptions,unicode),replacement and gref(descriptions,replacement) or "-",
+    tostring(value),comment)
 end
-
 local function report_substitution(feature,lookupname,descriptions,unicode,substitution)
-    report_prepare("%s: base substitution %s => %s",cref(feature,lookupname),
-        gref(descriptions,unicode),gref(descriptions,substitution))
+  report_prepare("%s: base substitution %s => %s",cref(feature,lookupname),
+    gref(descriptions,unicode),gref(descriptions,substitution))
 end
-
 local function report_ligature(feature,lookupname,descriptions,unicode,ligature)
-    report_prepare("%s: base ligature %s => %s",cref(feature,lookupname),
-        gref(descriptions,ligature),gref(descriptions,unicode))
+  report_prepare("%s: base ligature %s => %s",cref(feature,lookupname),
+    gref(descriptions,ligature),gref(descriptions,unicode))
 end
-
-local basemethods = { }
-local basemethod  = "<unset>"
-
+local basemethods={}
+local basemethod="<unset>"
 local function applybasemethod(what,...)
-    local m = basemethods[basemethod][what]
-    if m then
-        return m(...)
-    end
+  local m=basemethods[basemethod][what]
+  if m then
+    return m(...)
+  end
 end
-
--- We need to make sure that luatex sees the difference between
--- base fonts that have different glyphs in the same slots in fonts
--- that have the same fullname (or filename). LuaTeX will merge fonts
--- eventually (and subset later on). If needed we can use a more
--- verbose name as long as we don't use <()<>[]{}/%> and the length
--- is < 128.
-
-local basehash, basehashes, applied = { }, 1, { }
-
+local basehash,basehashes,applied={},1,{}
 local function registerbasehash(tfmdata)
-    local properties = tfmdata.properties
-    local hash = concat(applied," ")
-    local base = basehash[hash]
-    if not base then
-        basehashes     = basehashes + 1
-        base           = basehashes
-        basehash[hash] = base
-    end
-    properties.basehash = base
-    properties.fullname = properties.fullname .. "-" .. base
- -- report_prepare("fullname base hash: '%s', featureset '%s'",tfmdata.properties.fullname,hash)
-    applied = { }
+  local properties=tfmdata.properties
+  local hash=concat(applied," ")
+  local base=basehash[hash]
+  if not base then
+    basehashes=basehashes+1
+    base=basehashes
+    basehash[hash]=base
+  end
+  properties.basehash=base
+  properties.fullname=properties.fullname.."-"..base
+  applied={}
 end
-
 local function registerbasefeature(feature,value)
-    applied[#applied+1] = feature  .. "=" .. tostring(value)
+  applied[#applied+1]=feature.."="..tostring(value)
 end
-
--- The original basemode ligature builder used the names of components
--- and did some expression juggling to get the chain right. The current
--- variant starts with unicodes but still uses names to make the chain.
--- This is needed because we have to create intermediates when needed
--- but use predefined snippets when available. To some extend the
--- current builder is more stupid but I don't worry that much about it
--- as ligatures are rather predicatable.
---
--- Personally I think that an ff + i == ffi rule as used in for instance
--- latin modern is pretty weird as no sane person will key that in and
--- expect a glyph for that ligature plus the following character. Anyhow,
--- as we need to deal with this, we do, but no guarantes are given.
---
---         latin modern       dejavu
---
--- f+f       102 102             102 102
--- f+i       102 105             102 105
--- f+l       102 108             102 108
--- f+f+i                         102 102 105
--- f+f+l     102 102 108         102 102 108
--- ff+i    64256 105           64256 105
--- ff+l                        64256 108
---
--- As you can see here, latin modern is less complete than dejavu but
--- in practice one will not notice it.
---
--- The while loop is needed because we need to resolve for instance
--- pseudo names like hyphen_hyphen to endash so in practice we end
--- up with a bit too many definitions but the overhead is neglectable.
---
--- Todo: if changed[first] or changed[second] then ... end
-
-local trace = false
-
+local trace=false
 local function finalize_ligatures(tfmdata,ligatures)
-    local nofligatures = #ligatures
-    if nofligatures > 0 then
-        local characters   = tfmdata.characters
-        local descriptions = tfmdata.descriptions
-        local resources    = tfmdata.resources
-        local unicodes     = resources.unicodes
-        local private      = resources.private
-        local alldone      = false
-        while not alldone do
-            local done = 0
-            for i=1,nofligatures do
-                local ligature = ligatures[i]
-                if ligature then
-                    local unicode, lookupdata = ligature[1], ligature[2]
-                    if trace then
-                        trace_ligatures_detail("building %q into %q",concat(lookupdata," "),unicode)
-                    end
-                    local size = #lookupdata
-                    local firstcode = lookupdata[1] -- [2]
-                    local firstdata = characters[firstcode]
-                    local okay = false
-                    if firstdata then
-                        local firstname = "ctx_" .. firstcode
-                        for i=1,size-1 do -- for i=2,size-1 do
-                            local firstdata = characters[firstcode]
-                            if not firstdata then
-                                firstcode = private
-                                if trace then
-                                    trace_ligatures_detail("defining %q as %q",firstname,firstcode)
-                                end
-                                unicodes[firstname] = firstcode
-                                firstdata = { intermediate = true, ligatures = { } }
-                                characters[firstcode] = firstdata
-                                descriptions[firstcode] = { name = firstname }
-                                private = private + 1
-                            end
-                            local target
-                            local secondcode = lookupdata[i+1]
-                            local secondname = firstname .. "_" .. secondcode
-                            if i == size - 1 then
-                                target = unicode
-                                if not unicodes[secondname] then
-                                    unicodes[secondname] = unicode -- map final ligature onto intermediates
-                                end
-                                okay = true
-                            else
-                                target = unicodes[secondname]
-                                if not target then
-                                    break
-                                end
-                            end
-                            if trace then
-                                trace_ligatures_detail("codes (%s,%s) + (%s,%s) -> %s",firstname,firstcode,secondname,secondcode,target)
-                            end
-                            local firstligs = firstdata.ligatures
-                            if firstligs then
-                                firstligs[secondcode] = { char = target }
-                            else
-                                firstdata.ligatures = { [secondcode] = { char = target } }
-                            end
-                            firstcode = target
-                            firstname = secondname
-                        end
-                    end
-                    if okay then
-                        ligatures[i] = false
-                        done = done + 1
-                    end
-                end
-            end
-            alldone = done == 0
-        end
-        if trace then
-            for k, v in next, characters do
-                if v.ligatures then table.print(v,k) end
-            end
-        end
-        tfmdata.resources.private = private
-    end
+  local nofligatures=#ligatures
+  if nofligatures>0 then
+    local characters=tfmdata.characters
+    local descriptions=tfmdata.descriptions
+    local resources=tfmdata.resources
+    local unicodes=resources.unicodes
+    local private=resources.private
+    local alldone=false
+    while not alldone do
+      local done=0
+      for i=1,nofligatures do
+        local ligature=ligatures[i]
+        if ligature then
+          local unicode,lookupdata=ligature[1],ligature[2]
+          if trace then
+            trace_ligatures_detail("building %q into %q",concat(lookupdata," "),unicode)
+          end
+          local size=#lookupdata
+          local firstcode=lookupdata[1] 
+          local firstdata=characters[firstcode]
+          local okay=false
+          if firstdata then
+            local firstname="ctx_"..firstcode
+            for i=1,size-1 do 
+              local firstdata=characters[firstcode]
+              if not firstdata then
+                firstcode=private
+                if trace then
+                  trace_ligatures_detail("defining %q as %q",firstname,firstcode)
+                end
+                unicodes[firstname]=firstcode
+                firstdata={ intermediate=true,ligatures={} }
+                characters[firstcode]=firstdata
+                descriptions[firstcode]={ name=firstname }
+                private=private+1
+              end
+              local target
+              local secondcode=lookupdata[i+1]
+              local secondname=firstname.."_"..secondcode
+              if i==size-1 then
+                target=unicode
+                if not unicodes[secondname] then
+                  unicodes[secondname]=unicode 
+                end
+                okay=true
+              else
+                target=unicodes[secondname]
+                if not target then
+                  break
+                end
+              end
+              if trace then
+                trace_ligatures_detail("codes (%s,%s) + (%s,%s) -> %s",firstname,firstcode,secondname,secondcode,target)
+              end
+              local firstligs=firstdata.ligatures
+              if firstligs then
+                firstligs[secondcode]={ char=target }
+              else
+                firstdata.ligatures={ [secondcode]={ char=target } }
+              end
+              firstcode=target
+              firstname=secondname
+            end
+          end
+          if okay then
+            ligatures[i]=false
+            done=done+1
+          end
+        end
+      end
+      alldone=done==0
+    end
+    if trace then
+      for k,v in next,characters do
+        if v.ligatures then table.print(v,k) end
+      end
+    end
+    tfmdata.resources.private=private
+  end
 end
-
 local function preparesubstitutions(tfmdata,feature,value,validlookups,lookuplist)
-    local characters   = tfmdata.characters
-    local descriptions = tfmdata.descriptions
-    local resources    = tfmdata.resources
-    local changed      = tfmdata.changed
-    local unicodes     = resources.unicodes
-    local lookuphash   = resources.lookuphash
-    local lookuptypes  = resources.lookuptypes
-
-    local ligatures    = { }
-    local alternate    = tonumber(value)
-    local defaultalt   = otf.defaultbasealternate
-
-    local trace_singles      = trace_baseinit and trace_singles
-    local trace_alternatives = trace_baseinit and trace_alternatives
-    local trace_ligatures    = trace_baseinit and trace_ligatures
-
-    local actions      = {
-        substitution = function(lookupdata,lookupname,description,unicode)
-            if trace_singles then
-                report_substitution(feature,lookupname,descriptions,unicode,lookupdata)
-            end
-            changed[unicode] = lookupdata
-        end,
-        alternate = function(lookupdata,lookupname,description,unicode)
-            local replacement = lookupdata[alternate]
-            if replacement then
-                changed[unicode] = replacement
-                if trace_alternatives then
-                    report_alternate(feature,lookupname,descriptions,unicode,replacement,value,"normal")
-                end
-            elseif defaultalt == "first" then
-                replacement = lookupdata[1]
-                changed[unicode] = replacement
-                if trace_alternatives then
-                    report_alternate(feature,lookupname,descriptions,unicode,replacement,value,defaultalt)
-                end
-            elseif defaultalt == "last" then
-                replacement = lookupdata[#data]
-                if trace_alternatives then
-                    report_alternate(feature,lookupname,descriptions,unicode,replacement,value,defaultalt)
-                end
-            else
-                if trace_alternatives then
-                    report_alternate(feature,lookupname,descriptions,unicode,replacement,value,"unknown")
-                end
-            end
-        end,
-        ligature = function(lookupdata,lookupname,description,unicode)
-            if trace_ligatures then
-                report_ligature(feature,lookupname,descriptions,unicode,lookupdata)
-            end
-            ligatures[#ligatures+1] = { unicode, lookupdata }
-        end,
-    }
-
-    for unicode, character in next, characters do
-        local description = descriptions[unicode]
-        local lookups = description.slookups
-        if lookups then
-            for l=1,#lookuplist do
-                local lookupname = lookuplist[l]
-                local lookupdata = lookups[lookupname]
-                if lookupdata then
-                    local lookuptype = lookuptypes[lookupname]
-                    local action = actions[lookuptype]
-                    if action then
-                        action(lookupdata,lookupname,description,unicode)
-                    end
-                end
-            end
+  local characters=tfmdata.characters
+  local descriptions=tfmdata.descriptions
+  local resources=tfmdata.resources
+  local changed=tfmdata.changed
+  local unicodes=resources.unicodes
+  local lookuphash=resources.lookuphash
+  local lookuptypes=resources.lookuptypes
+  local ligatures={}
+  local alternate=tonumber(value)
+  local defaultalt=otf.defaultbasealternate
+  local trace_singles=trace_baseinit and trace_singles
+  local trace_alternatives=trace_baseinit and trace_alternatives
+  local trace_ligatures=trace_baseinit and trace_ligatures
+  local actions={
+    substitution=function(lookupdata,lookupname,description,unicode)
+      if trace_singles then
+        report_substitution(feature,lookupname,descriptions,unicode,lookupdata)
+      end
+      changed[unicode]=lookupdata
+    end,
+    alternate=function(lookupdata,lookupname,description,unicode)
+      local replacement=lookupdata[alternate]
+      if replacement then
+        changed[unicode]=replacement
+        if trace_alternatives then
+          report_alternate(feature,lookupname,descriptions,unicode,replacement,value,"normal")
         end
-        local lookups = description.mlookups
-        if lookups then
-            for l=1,#lookuplist do
-                local lookupname = lookuplist[l]
-                local lookuplist = lookups[lookupname]
-                if lookuplist then
-                    local lookuptype = lookuptypes[lookupname]
-                    local action = actions[lookuptype]
-                    if action then
-                        for i=1,#lookuplist do
-                            action(lookuplist[i],lookupname,description,unicode)
-                        end
-                    end
-                end
-            end
+      elseif defaultalt=="first" then
+        replacement=lookupdata[1]
+        changed[unicode]=replacement
+        if trace_alternatives then
+          report_alternate(feature,lookupname,descriptions,unicode,replacement,value,defaultalt)
         end
-    end
-
-    finalize_ligatures(tfmdata,ligatures)
-end
-
-local function preparepositionings(tfmdata,feature,value,validlookups,lookuplist) -- todo what kind of kerns, currently all
-    local characters   = tfmdata.characters
-    local descriptions = tfmdata.descriptions
-    local resources    = tfmdata.resources
-    local unicodes     = resources.unicodes
-    local sharedkerns  = { }
-    local traceindeed  = trace_baseinit and trace_kerns
-    for unicode, character in next, characters do
-        local description = descriptions[unicode]
-        local rawkerns = description.kerns -- shared
-        if rawkerns then
-            local s = sharedkerns[rawkerns]
-            if s == false then
-                -- skip
-            elseif s then
-                character.kerns = s
-            else
-                local newkerns = character.kerns
-                local done     = false
-                for l=1,#lookuplist do
-                    local lookup = lookuplist[l]
-                    local kerns  = rawkerns[lookup]
-                    if kerns then
-                        for otherunicode, value in next, kerns do
-                            if value == 0 then
-                                -- maybe no 0 test here
-                            elseif not newkerns then
-                                newkerns = { [otherunicode] = value }
-                                done = true
-                                if traceindeed then
-                                    report_prepare("%s: base kern %s + %s => %s",cref(feature,lookup),
-                                        gref(descriptions,unicode),gref(descriptions,otherunicode),value)
-                                end
-                            elseif not newkerns[otherunicode] then -- first wins
-                                newkerns[otherunicode] = value
-                                done = true
-                                if traceindeed then
-                                    report_prepare("%s: base kern %s + %s => %s",cref(feature,lookup),
-                                        gref(descriptions,unicode),gref(descriptions,otherunicode),value)
-                                end
-                            end
-                        end
-                    end
-                end
-                if done then
-                    sharedkerns[rawkerns] = newkerns
-                    character.kerns       = newkerns -- no empty assignments
-                else
-                    sharedkerns[rawkerns] = false
-                end
-            end
+      elseif defaultalt=="last" then
+        replacement=lookupdata[#data]
+        if trace_alternatives then
+          report_alternate(feature,lookupname,descriptions,unicode,replacement,value,defaultalt)
+        end
+      else
+        if trace_alternatives then
+          report_alternate(feature,lookupname,descriptions,unicode,replacement,value,"unknown")
+        end
+      end
+    end,
+    ligature=function(lookupdata,lookupname,description,unicode)
+      if trace_ligatures then
+        report_ligature(feature,lookupname,descriptions,unicode,lookupdata)
+      end
+      ligatures[#ligatures+1]={ unicode,lookupdata }
+    end,
+  }
+  for unicode,character in next,characters do
+    local description=descriptions[unicode]
+    local lookups=description.slookups
+    if lookups then
+      for l=1,#lookuplist do
+        local lookupname=lookuplist[l]
+        local lookupdata=lookups[lookupname]
+        if lookupdata then
+          local lookuptype=lookuptypes[lookupname]
+          local action=actions[lookuptype]
+          if action then
+            action(lookupdata,lookupname,description,unicode)
+          end
+        end
+      end
+    end
+    local lookups=description.mlookups
+    if lookups then
+      for l=1,#lookuplist do
+        local lookupname=lookuplist[l]
+        local lookuplist=lookups[lookupname]
+        if lookuplist then
+          local lookuptype=lookuptypes[lookupname]
+          local action=actions[lookuptype]
+          if action then
+            for i=1,#lookuplist do
+              action(lookuplist[i],lookupname,description,unicode)
+            end
+          end
+        end
+      end
+    end
+  end
+  finalize_ligatures(tfmdata,ligatures)
+end
+local function preparepositionings(tfmdata,feature,value,validlookups,lookuplist) 
+  local characters=tfmdata.characters
+  local descriptions=tfmdata.descriptions
+  local resources=tfmdata.resources
+  local unicodes=resources.unicodes
+  local sharedkerns={}
+  local traceindeed=trace_baseinit and trace_kerns
+  for unicode,character in next,characters do
+    local description=descriptions[unicode]
+    local rawkerns=description.kerns 
+    if rawkerns then
+      local s=sharedkerns[rawkerns]
+      if s==false then
+      elseif s then
+        character.kerns=s
+      else
+        local newkerns=character.kerns
+        local done=false
+        for l=1,#lookuplist do
+          local lookup=lookuplist[l]
+          local kerns=rawkerns[lookup]
+          if kerns then
+            for otherunicode,value in next,kerns do
+              if value==0 then
+              elseif not newkerns then
+                newkerns={ [otherunicode]=value }
+                done=true
+                if traceindeed then
+                  report_prepare("%s: base kern %s + %s => %s",cref(feature,lookup),
+                    gref(descriptions,unicode),gref(descriptions,otherunicode),value)
+                end
+              elseif not newkerns[otherunicode] then 
+                newkerns[otherunicode]=value
+                done=true
+                if traceindeed then
+                  report_prepare("%s: base kern %s + %s => %s",cref(feature,lookup),
+                    gref(descriptions,unicode),gref(descriptions,otherunicode),value)
+                end
+              end
+            end
+          end
+        end
+        if done then
+          sharedkerns[rawkerns]=newkerns
+          character.kerns=newkerns 
+        else
+          sharedkerns[rawkerns]=false
         end
+      end
     end
+  end
 end
-
-basemethods.independent = {
-    preparesubstitutions = preparesubstitutions,
-    preparepositionings  = preparepositionings,
+basemethods.independent={
+  preparesubstitutions=preparesubstitutions,
+  preparepositionings=preparepositionings,
 }
-
 local function makefake(tfmdata,name,present)
-    local resources = tfmdata.resources
-    local private   = resources.private
-    local character = { intermediate = true, ligatures = { } }
-    resources.unicodes[name] = private
-    tfmdata.characters[private] = character
-    tfmdata.descriptions[private] = { name = name }
-    resources.private = private + 1
-    present[name] = private
-    return character
+  local resources=tfmdata.resources
+  local private=resources.private
+  local character={ intermediate=true,ligatures={} }
+  resources.unicodes[name]=private
+  tfmdata.characters[private]=character
+  tfmdata.descriptions[private]={ name=name }
+  resources.private=private+1
+  present[name]=private
+  return character
 end
-
 local function make_1(present,tree,name)
-    for k, v in next, tree do
-        if k == "ligature" then
-            present[name] = v
-        else
-            make_1(present,v,name .. "_" .. k)
-        end
+  for k,v in next,tree do
+    if k=="ligature" then
+      present[name]=v
+    else
+      make_1(present,v,name.."_"..k)
     end
+  end
 end
-
 local function make_2(present,tfmdata,characters,tree,name,preceding,unicode,done,lookupname)
-    for k, v in next, tree do
-        if k == "ligature" then
-            local character = characters[preceding]
-            if not character then
-                if trace_baseinit then
-                    report_prepare("weird ligature in lookup %s: U+%05X (%s), preceding U+%05X (%s)",lookupname,v,utfchar(v),preceding,utfchar(preceding))
-                end
-                character = makefake(tfmdata,name,present)
-            end
-            local ligatures = character.ligatures
-            if ligatures then
-                ligatures[unicode] = { char = v }
-            else
-                character.ligatures = { [unicode] = { char = v } }
-            end
-            if done then
-                local d = done[lookupname]
-                if not d then
-                    done[lookupname] = { "dummy", v }
-                else
-                    d[#d+1] = v
-                end
-            end
+  for k,v in next,tree do
+    if k=="ligature" then
+      local character=characters[preceding]
+      if not character then
+        if trace_baseinit then
+          report_prepare("weird ligature in lookup %s: U+%05X (%s), preceding U+%05X (%s)",lookupname,v,utfchar(v),preceding,utfchar(preceding))
+        end
+        character=makefake(tfmdata,name,present)
+      end
+      local ligatures=character.ligatures
+      if ligatures then
+        ligatures[unicode]={ char=v }
+      else
+        character.ligatures={ [unicode]={ char=v } }
+      end
+      if done then
+        local d=done[lookupname]
+        if not d then
+          done[lookupname]={ "dummy",v }
         else
-            local code = present[name] or unicode
-            local name = name .. "_" .. k
-            make_2(present,tfmdata,characters,v,name,code,k,done,lookupname)
+          d[#d+1]=v
         end
+      end
+    else
+      local code=present[name] or unicode
+      local name=name.."_"..k
+      make_2(present,tfmdata,characters,v,name,code,k,done,lookupname)
     end
+  end
 end
-
 local function preparesubstitutions(tfmdata,feature,value,validlookups,lookuplist)
-    local characters   = tfmdata.characters
-    local descriptions = tfmdata.descriptions
-    local resources    = tfmdata.resources
-    local changed      = tfmdata.changed
-    local lookuphash   = resources.lookuphash
-    local lookuptypes  = resources.lookuptypes
-
-    local ligatures    = { }
-    local alternate    = tonumber(value)
-    local defaultalt   = otf.defaultbasealternate
-
-    local trace_singles      = trace_baseinit and trace_singles
-    local trace_alternatives = trace_baseinit and trace_alternatives
-    local trace_ligatures    = trace_baseinit and trace_ligatures
-
-    for l=1,#lookuplist do
-        local lookupname = lookuplist[l]
-        local lookupdata = lookuphash[lookupname]
-        local lookuptype = lookuptypes[lookupname]
-        for unicode, data in next, lookupdata do
-            if lookuptype == "substitution" then
-                if trace_singles then
-                    report_substitution(feature,lookupname,descriptions,unicode,data)
-                end
-                changed[unicode] = data
-            elseif lookuptype == "alternate" then
-                local replacement = data[alternate]
-                if replacement then
-                    changed[unicode] = replacement
-                    if trace_alternatives then
-                        report_alternate(feature,lookupname,descriptions,unicode,replacement,value,"normal")
-                    end
-                elseif defaultalt == "first" then
-                    replacement = data[1]
-                    changed[unicode] = replacement
-                    if trace_alternatives then
-                        report_alternate(feature,lookupname,descriptions,unicode,replacement,value,defaultalt)
-                    end
-                elseif defaultalt == "last" then
-                    replacement = data[#data]
-                    if trace_alternatives then
-                        report_alternate(feature,lookupname,descriptions,unicode,replacement,value,defaultalt)
-                    end
-                else
-                    if trace_alternatives then
-                        report_alternate(feature,lookupname,descriptions,unicode,replacement,value,"unknown")
-                    end
-                end
-            elseif lookuptype == "ligature" then
-                ligatures[#ligatures+1] = { unicode, data, lookupname }
-                if trace_ligatures then
-                    report_ligature(feature,lookupname,descriptions,unicode,data)
-                end
-            end
-        end
-    end
-
-    local nofligatures = #ligatures
-
-    if nofligatures > 0 then
-
-        local characters = tfmdata.characters
-        local present    = { }
-        local done       = trace_baseinit and trace_ligatures and { }
-
-        for i=1,nofligatures do
-            local ligature = ligatures[i]
-            local unicode, tree = ligature[1], ligature[2]
-            make_1(present,tree,"ctx_"..unicode)
-        end
-
-        for i=1,nofligatures do
-            local ligature = ligatures[i]
-            local unicode, tree, lookupname = ligature[1], ligature[2], ligature[3]
-            make_2(present,tfmdata,characters,tree,"ctx_"..unicode,unicode,unicode,done,lookupname)
-        end
-
-    end
-
+  local characters=tfmdata.characters
+  local descriptions=tfmdata.descriptions
+  local resources=tfmdata.resources
+  local changed=tfmdata.changed
+  local lookuphash=resources.lookuphash
+  local lookuptypes=resources.lookuptypes
+  local ligatures={}
+  local alternate=tonumber(value)
+  local defaultalt=otf.defaultbasealternate
+  local trace_singles=trace_baseinit and trace_singles
+  local trace_alternatives=trace_baseinit and trace_alternatives
+  local trace_ligatures=trace_baseinit and trace_ligatures
+  for l=1,#lookuplist do
+    local lookupname=lookuplist[l]
+    local lookupdata=lookuphash[lookupname]
+    local lookuptype=lookuptypes[lookupname]
+    for unicode,data in next,lookupdata do
+      if lookuptype=="substitution" then
+        if trace_singles then
+          report_substitution(feature,lookupname,descriptions,unicode,data)
+        end
+        changed[unicode]=data
+      elseif lookuptype=="alternate" then
+        local replacement=data[alternate]
+        if replacement then
+          changed[unicode]=replacement
+          if trace_alternatives then
+            report_alternate(feature,lookupname,descriptions,unicode,replacement,value,"normal")
+          end
+        elseif defaultalt=="first" then
+          replacement=data[1]
+          changed[unicode]=replacement
+          if trace_alternatives then
+            report_alternate(feature,lookupname,descriptions,unicode,replacement,value,defaultalt)
+          end
+        elseif defaultalt=="last" then
+          replacement=data[#data]
+          if trace_alternatives then
+            report_alternate(feature,lookupname,descriptions,unicode,replacement,value,defaultalt)
+          end
+        else
+          if trace_alternatives then
+            report_alternate(feature,lookupname,descriptions,unicode,replacement,value,"unknown")
+          end
+        end
+      elseif lookuptype=="ligature" then
+        ligatures[#ligatures+1]={ unicode,data,lookupname }
+        if trace_ligatures then
+          report_ligature(feature,lookupname,descriptions,unicode,data)
+        end
+      end
+    end
+  end
+  local nofligatures=#ligatures
+  if nofligatures>0 then
+    local characters=tfmdata.characters
+    local present={}
+    local done=trace_baseinit and trace_ligatures and {}
+    for i=1,nofligatures do
+      local ligature=ligatures[i]
+      local unicode,tree=ligature[1],ligature[2]
+      make_1(present,tree,"ctx_"..unicode)
+    end
+    for i=1,nofligatures do
+      local ligature=ligatures[i]
+      local unicode,tree,lookupname=ligature[1],ligature[2],ligature[3]
+      make_2(present,tfmdata,characters,tree,"ctx_"..unicode,unicode,unicode,done,lookupname)
+    end
+  end
 end
-
 local function preparepositionings(tfmdata,feature,value,validlookups,lookuplist)
-    local characters   = tfmdata.characters
-    local descriptions = tfmdata.descriptions
-    local resources    = tfmdata.resources
-    local lookuphash   = resources.lookuphash
-    local traceindeed  = trace_baseinit and trace_kerns
-
-    -- check out this sharedkerns trickery
-
-    for l=1,#lookuplist do
-        local lookupname = lookuplist[l]
-        local lookupdata = lookuphash[lookupname]
-        for unicode, data in next, lookupdata do
-            local character = characters[unicode]
-            local kerns = character.kerns
-            if not kerns then
-                kerns = { }
-                character.kerns = kerns
-            end
-            if traceindeed then
-                for otherunicode, kern in next, data do
-                    if not kerns[otherunicode] and kern ~= 0 then
-                        kerns[otherunicode] = kern
-                        report_prepare("%s: base kern %s + %s => %s",cref(feature,lookup),
-                            gref(descriptions,unicode),gref(descriptions,otherunicode),kern)
-                    end
-                end
-            else
-                for otherunicode, kern in next, data do
-                    if not kerns[otherunicode] and kern ~= 0 then
-                        kerns[otherunicode] = kern
-                    end
-                end
-            end
-        end
-    end
-
+  local characters=tfmdata.characters
+  local descriptions=tfmdata.descriptions
+  local resources=tfmdata.resources
+  local lookuphash=resources.lookuphash
+  local traceindeed=trace_baseinit and trace_kerns
+  for l=1,#lookuplist do
+    local lookupname=lookuplist[l]
+    local lookupdata=lookuphash[lookupname]
+    for unicode,data in next,lookupdata do
+      local character=characters[unicode]
+      local kerns=character.kerns
+      if not kerns then
+        kerns={}
+        character.kerns=kerns
+      end
+      if traceindeed then
+        for otherunicode,kern in next,data do
+          if not kerns[otherunicode] and kern~=0 then
+            kerns[otherunicode]=kern
+            report_prepare("%s: base kern %s + %s => %s",cref(feature,lookup),
+              gref(descriptions,unicode),gref(descriptions,otherunicode),kern)
+          end
+        end
+      else
+        for otherunicode,kern in next,data do
+          if not kerns[otherunicode] and kern~=0 then
+            kerns[otherunicode]=kern
+          end
+        end
+      end
+    end
+  end
 end
-
 local function initializehashes(tfmdata)
-    nodeinitializers.features(tfmdata)
+  nodeinitializers.features(tfmdata)
 end
-
-basemethods.shared = {
-    initializehashes     = initializehashes,
-    preparesubstitutions = preparesubstitutions,
-    preparepositionings  = preparepositionings,
+basemethods.shared={
+  initializehashes=initializehashes,
+  preparesubstitutions=preparesubstitutions,
+  preparepositionings=preparepositionings,
 }
-
-basemethod = "independent"
-
+basemethod="independent"
 local function featuresinitializer(tfmdata,value)
-    if true then -- value then
-        local t = trace_preparing and os.clock()
-        local features = tfmdata.shared.features
-        if features then
-            applybasemethod("initializehashes",tfmdata)
-            local collectlookups    = otf.collectlookups
-            local rawdata           = tfmdata.shared.rawdata
-            local properties        = tfmdata.properties
-            local script            = properties.script
-            local language          = properties.language
-            local basesubstitutions = rawdata.resources.features.gsub
-            local basepositionings  = rawdata.resources.features.gpos
-            if basesubstitutions then
-                for feature, data in next, basesubstitutions do
-                    local value = features[feature]
-                    if value then
-                        local validlookups, lookuplist = collectlookups(rawdata,feature,script,language)
-                        if validlookups then
-                            applybasemethod("preparesubstitutions",tfmdata,feature,value,validlookups,lookuplist)
-                            registerbasefeature(feature,value)
-                        end
-                    end
-                end
-            end
-            if basepositions then
-                for feature, data in next, basepositions do
-                    local value = features[feature]
-                    if value then
-                        local validlookups, lookuplist = collectlookups(rawdata,feature,script,language)
-                        if validlookups then
-                            applybasemethod("preparepositionings",tfmdata,feature,features[feature],validlookups,lookuplist)
-                            registerbasefeature(feature,value)
-                        end
-                    end
-                end
-            end
-            registerbasehash(tfmdata)
-        end
-        if trace_preparing then
-            report_prepare("preparation time is %0.3f seconds for %s",os.clock()-t,tfmdata.properties.fullname or "?")
-        end
-    end
+  if true then 
+    local t=trace_preparing and os.clock()
+    local features=tfmdata.shared.features
+    if features then
+      applybasemethod("initializehashes",tfmdata)
+      local collectlookups=otf.collectlookups
+      local rawdata=tfmdata.shared.rawdata
+      local properties=tfmdata.properties
+      local script=properties.script
+      local language=properties.language
+      local basesubstitutions=rawdata.resources.features.gsub
+      local basepositionings=rawdata.resources.features.gpos
+      if basesubstitutions then
+        for feature,data in next,basesubstitutions do
+          local value=features[feature]
+          if value then
+            local validlookups,lookuplist=collectlookups(rawdata,feature,script,language)
+            if validlookups then
+              applybasemethod("preparesubstitutions",tfmdata,feature,value,validlookups,lookuplist)
+              registerbasefeature(feature,value)
+            end
+          end
+        end
+      end
+      if basepositions then
+        for feature,data in next,basepositions do
+          local value=features[feature]
+          if value then
+            local validlookups,lookuplist=collectlookups(rawdata,feature,script,language)
+            if validlookups then
+              applybasemethod("preparepositionings",tfmdata,feature,features[feature],validlookups,lookuplist)
+              registerbasefeature(feature,value)
+            end
+          end
+        end
+      end
+      registerbasehash(tfmdata)
+    end
+    if trace_preparing then
+      report_prepare("preparation time is %0.3f seconds for %s",os.clock()-t,tfmdata.properties.fullname or "?")
+    end
+  end
 end
-
 registerotffeature {
-    name         = "features",
-    description  = "features",
-    default      = true,
-    initializers = {
- --     position = 1, -- after setscript (temp hack ... we need to force script / language to 1
-        base     = featuresinitializer,
-    }
+  name="features",
+  description="features",
+  default=true,
+  initializers={
+    base=featuresinitializer,
+  }
 }
-
--- independent : collect lookups independently (takes more runtime ... neglectable)
--- shared      : shares lookups with node mode (takes more memory unless also a node mode variant is used ... noticeable)
-
-directives.register("fonts.otf.loader.basemethod", function(v)
-    if basemethods[v] then
-        basemethod = v
-    end
+directives.register("fonts.otf.loader.basemethod",function(v)
+  if basemethods[v] then
+    basemethod=v
+  end
 end)
 
 end -- closure
 
 do -- begin closure to overcome local limits and interference
 
-if not modules then modules = { } end modules ['node-inj'] = {
-    version   = 1.001,
-    comment   = "companion to node-ini.mkiv",
-    author    = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
-    copyright = "PRAGMA ADE / ConTeXt Development Team",
-    license   = "see context related readme files",
+if not modules then modules={} end modules ['node-inj']={
+  version=1.001,
+  comment="companion to node-ini.mkiv",
+  author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+  copyright="PRAGMA ADE / ConTeXt Development Team",
+  license="see context related readme files",
 }
-
--- This is very experimental (this will change when we have luatex > .50 and
--- a few pending thingies are available. Also, Idris needs to make a few more
--- test fonts. Btw, future versions of luatex will have extended glyph properties
--- that can be of help. Some optimizations can go away when we have faster machines.
-
-local next = next
-local utfchar = utf.char
-
-local trace_injections = false  trackers.register("nodes.injections", function(v) trace_injections = v end)
-
-local report_injections = logs.reporter("nodes","injections")
-
-local attributes, nodes, node = attributes, nodes, node
-
-fonts                    = fonts
-local fontdata           = fonts.hashes.identifiers
-
-nodes.injections         = nodes.injections or { }
-local injections         = nodes.injections
-
-local nodecodes          = nodes.nodecodes
-local glyph_code         = nodecodes.glyph
-local nodepool           = nodes.pool
-local newkern            = nodepool.kern
-
-local traverse_id        = node.traverse_id
-local insert_node_before = node.insert_before
-local insert_node_after  = node.insert_after
-
-local a_kernpair = attributes.private('kernpair')
-local a_ligacomp = attributes.private('ligacomp')
-local a_markbase = attributes.private('markbase')
-local a_markmark = attributes.private('markmark')
-local a_markdone = attributes.private('markdone')
-local a_cursbase = attributes.private('cursbase')
-local a_curscurs = attributes.private('curscurs')
-local a_cursdone = attributes.private('cursdone')
-
--- This injector has been tested by Idris Samawi Hamid (several arabic fonts as well as
--- the rather demanding Husayni font), Khaled Hosny (latin and arabic) and Kaj Eigner
--- (arabic, hebrew and thai) and myself (whatever font I come across). I'm pretty sure
--- that this code is not 100% okay but examples are needed to figure things out.
-
+local next=next
+local utfchar=utf.char
+local trace_injections=false trackers.register("nodes.injections",function(v) trace_injections=v end)
+local report_injections=logs.reporter("nodes","injections")
+local attributes,nodes,node=attributes,nodes,node
+fonts=fonts
+local fontdata=fonts.hashes.identifiers
+nodes.injections=nodes.injections or {}
+local injections=nodes.injections
+local nodecodes=nodes.nodecodes
+local glyph_code=nodecodes.glyph
+local nodepool=nodes.pool
+local newkern=nodepool.kern
+local traverse_id=node.traverse_id
+local insert_node_before=node.insert_before
+local insert_node_after=node.insert_after
+local a_kernpair=attributes.private('kernpair')
+local a_ligacomp=attributes.private('ligacomp')
+local a_markbase=attributes.private('markbase')
+local a_markmark=attributes.private('markmark')
+local a_markdone=attributes.private('markdone')
+local a_cursbase=attributes.private('cursbase')
+local a_curscurs=attributes.private('curscurs')
+local a_cursdone=attributes.private('cursdone')
 function injections.installnewkern(nk)
-    newkern = nk or newkern
+  newkern=nk or newkern
 end
-
-local cursives = { }
-local marks    = { }
-local kerns    = { }
-
--- Currently we do gpos/kern in a bit inofficial way but when we have the extra fields in
--- glyphnodes to manipulate ht/dp/wd explicitly I will provide an alternative; also, we
--- can share tables.
-
--- For the moment we pass the r2l key ... volt/arabtype tests .. idris: this needs
--- checking with husayni (volt and fontforge).
-
+local cursives={}
+local marks={}
+local kerns={}
 function injections.setcursive(start,nxt,factor,rlmode,exit,entry,tfmstart,tfmnext)
-    local dx, dy = factor*(exit[1]-entry[1]), factor*(exit[2]-entry[2])
-    local ws, wn = tfmstart.width, tfmnext.width
-    local bound = #cursives + 1
-    start[a_cursbase] = bound
-    nxt[a_curscurs] = bound
-    cursives[bound] = { rlmode, dx, dy, ws, wn }
-    return dx, dy, bound
+  local dx,dy=factor*(exit[1]-entry[1]),factor*(exit[2]-entry[2])
+  local ws,wn=tfmstart.width,tfmnext.width
+  local bound=#cursives+1
+  start[a_cursbase]=bound
+  nxt[a_curscurs]=bound
+  cursives[bound]={ rlmode,dx,dy,ws,wn }
+  return dx,dy,bound
 end
-
 function injections.setpair(current,factor,rlmode,r2lflag,spec,tfmchr)
-    local x, y, w, h = factor*spec[1], factor*spec[2], factor*spec[3], factor*spec[4]
-    -- dy = y - h
-    if x ~= 0 or w ~= 0 or y ~= 0 or h ~= 0 then
-        local bound = current[a_kernpair]
-        if bound then
-            local kb = kerns[bound]
-            -- inefficient but singles have less, but weird anyway, needs checking
-            kb[2], kb[3], kb[4], kb[5] = (kb[2] or 0) + x, (kb[3] or 0) + y, (kb[4] or 0)+ w, (kb[5] or 0) + h
-        else
-            bound = #kerns + 1
-            current[a_kernpair] = bound
-            kerns[bound] = { rlmode, x, y, w, h, r2lflag, tfmchr.width }
-        end
-        return x, y, w, h, bound
+  local x,y,w,h=factor*spec[1],factor*spec[2],factor*spec[3],factor*spec[4]
+  if x~=0 or w~=0 or y~=0 or h~=0 then
+    local bound=current[a_kernpair]
+    if bound then
+      local kb=kerns[bound]
+      kb[2],kb[3],kb[4],kb[5]=(kb[2] or 0)+x,(kb[3] or 0)+y,(kb[4] or 0)+w,(kb[5] or 0)+h
+    else
+      bound=#kerns+1
+      current[a_kernpair]=bound
+      kerns[bound]={ rlmode,x,y,w,h,r2lflag,tfmchr.width }
     end
-    return x, y, w, h -- no bound
+    return x,y,w,h,bound
+  end
+  return x,y,w,h 
 end
-
 function injections.setkern(current,factor,rlmode,x,tfmchr)
-    local dx = factor*x
-    if dx ~= 0 then
-        local bound = #kerns + 1
-        current[a_kernpair] = bound
-        kerns[bound] = { rlmode, dx }
-        return dx, bound
+  local dx=factor*x
+  if dx~=0 then
+    local bound=#kerns+1
+    current[a_kernpair]=bound
+    kerns[bound]={ rlmode,dx }
+    return dx,bound
+  else
+    return 0,0
+  end
+end
+function injections.setmark(start,base,factor,rlmode,ba,ma,index) 
+  local dx,dy=factor*(ba[1]-ma[1]),factor*(ba[2]-ma[2])   
+  local bound=base[a_markbase]          
+local index=1
+  if bound then
+    local mb=marks[bound]
+    if mb then
+index=#mb+1
+      mb[index]={ dx,dy,rlmode }
+      start[a_markmark]=bound
+      start[a_markdone]=index
+      return dx,dy,bound
     else
-        return 0, 0
+      report_injections("possible problem, U+%05X is base mark without data (id: %s)",base.char,bound)
     end
+  end
+  index=index or 1
+  bound=#marks+1
+  base[a_markbase]=bound
+  start[a_markmark]=bound
+  start[a_markdone]=index
+  marks[bound]={ [index]={ dx,dy,rlmode } }
+  return dx,dy,bound
 end
-
-function injections.setmark(start,base,factor,rlmode,ba,ma,index) -- ba=baseanchor, ma=markanchor
-    local dx, dy = factor*(ba[1]-ma[1]), factor*(ba[2]-ma[2])     -- the index argument is no longer used but when this
-    local bound = base[a_markbase]                    -- fails again we should pass it
-local index = 1
-    if bound then
-        local mb = marks[bound]
-        if mb then
-         -- if not index then index = #mb + 1 end
-index = #mb + 1
-            mb[index] = { dx, dy, rlmode }
-            start[a_markmark] = bound
-            start[a_markdone] = index
-            return dx, dy, bound
-        else
-            report_injections("possible problem, U+%05X is base mark without data (id: %s)",base.char,bound)
-        end
-    end
---     index = index or 1
-    index = index or 1
-    bound = #marks + 1
-    base[a_markbase] = bound
-    start[a_markmark] = bound
-    start[a_markdone] = index
-    marks[bound] = { [index] = { dx, dy, rlmode } }
-    return dx, dy, bound
-end
-
 local function dir(n)
-    return (n and n<0 and "r-to-l") or (n and n>0 and "l-to-r") or "unset"
+  return (n and n<0 and "r-to-l") or (n and n>0 and "l-to-r") or "unset"
 end
-
 local function trace(head)
-    report_injections("begin run")
-    for n in traverse_id(glyph_code,head) do
-        if n.subtype < 256 then
-            local kp = n[a_kernpair]
-            local mb = n[a_markbase]
-            local mm = n[a_markmark]
-            local md = n[a_markdone]
-            local cb = n[a_cursbase]
-            local cc = n[a_curscurs]
-            local char = n.char
-            report_injections("char U+%05X, font %s, glyph %s",char,n.font,utfchar(char))
-            if kp then
-                local k = kerns[kp]
-                if k[3] then
-                    report_injections("  pairkern: dir=%s, x=%s, y=%s, w=%s, h=%s",dir(k[1]),k[2] or "?",k[3] or "?",k[4] or "?",k[5] or "?")
-                else
-                    report_injections("  kern: dir=%s, dx=%s",dir(k[1]),k[2] or "?")
-                end
-            end
-            if mb then
-                report_injections("  markbase: bound=%s",mb)
-            end
-            if mm then
-                local m = marks[mm]
-                if mb then
-                    local m = m[mb]
-                    if m then
-                        report_injections("  markmark: bound=%s, index=%s, dx=%s, dy=%s",mm,md or "?",m[1] or "?",m[2] or "?")
-                    else
-                        report_injections("  markmark: bound=%s, missing index",mm)
-                    end
-                else
-                    m = m[1]
-                    report_injections("  markmark: bound=%s, dx=%s, dy=%s",mm,m and m[1] or "?",m and m[2] or "?")
-                end
-            end
-            if cb then
-                report_injections("  cursbase: bound=%s",cb)
-            end
-            if cc then
-                local c = cursives[cc]
-                report_injections("  curscurs: bound=%s, dir=%s, dx=%s, dy=%s",cc,dir(c[1]),c[2] or "?",c[3] or "?")
-            end
+  report_injections("begin run")
+  for n in traverse_id(glyph_code,head) do
+    if n.subtype<256 then
+      local kp=n[a_kernpair]
+      local mb=n[a_markbase]
+      local mm=n[a_markmark]
+      local md=n[a_markdone]
+      local cb=n[a_cursbase]
+      local cc=n[a_curscurs]
+      local char=n.char
+      report_injections("char U+%05X, font %s, glyph %s",char,n.font,utfchar(char))
+      if kp then
+        local k=kerns[kp]
+        if k[3] then
+          report_injections("  pairkern: dir=%s, x=%s, y=%s, w=%s, h=%s",dir(k[1]),k[2] or "?",k[3] or "?",k[4] or "?",k[5] or "?")
+        else
+          report_injections("  kern: dir=%s, dx=%s",dir(k[1]),k[2] or "?")
+        end
+      end
+      if mb then
+        report_injections("  markbase: bound=%s",mb)
+      end
+      if mm then
+        local m=marks[mm]
+        if mb then
+          local m=m[mb]
+          if m then
+            report_injections("  markmark: bound=%s, index=%s, dx=%s, dy=%s",mm,md or "?",m[1] or "?",m[2] or "?")
+          else
+            report_injections("  markmark: bound=%s, missing index",mm)
+          end
+        else
+          m=m[1]
+          report_injections("  markmark: bound=%s, dx=%s, dy=%s",mm,m and m[1] or "?",m and m[2] or "?")
         end
+      end
+      if cb then
+        report_injections("  cursbase: bound=%s",cb)
+      end
+      if cc then
+        local c=cursives[cc]
+        report_injections("  curscurs: bound=%s, dir=%s, dx=%s, dy=%s",cc,dir(c[1]),c[2] or "?",c[3] or "?")
+      end
     end
-    report_injections("end run")
+  end
+  report_injections("end run")
 end
-
--- todo: reuse tables (i.e. no collection), but will be extra fields anyway
--- todo: check for attribute
-
--- We can have a fast test on a font being processed, so we can check faster for marks etc
--- but I'll make a context variant anyway.
-
 function injections.handler(head,where,keep)
-    local has_marks, has_cursives, has_kerns = next(marks), next(cursives), next(kerns)
-    if has_marks or has_cursives then
-        if trace_injections then
-            trace(head)
-        end
-        -- in the future variant we will not copy items but refs to tables
-        local done, ky, rl, valid, cx, wx, mk, nofvalid = false, { }, { }, { }, { }, { }, { }, 0
-        if has_kerns then -- move outside loop
-            local nf, tm = nil, nil
-            for n in traverse_id(glyph_code,head) do -- only needed for relevant fonts
-                if n.subtype < 256 then
-                    nofvalid = nofvalid + 1
-                    valid[nofvalid] = n
-                    if n.font ~= nf then
-                        nf = n.font
-                        tm = fontdata[nf].resources.marks
-                    end
-                    if tm then
-                        mk[n] = tm[n.char]
-                    end
-                    local k = n[a_kernpair]
+  local has_marks,has_cursives,has_kerns=next(marks),next(cursives),next(kerns)
+  if has_marks or has_cursives then
+    if trace_injections then
+      trace(head)
+    end
+    local done,ky,rl,valid,cx,wx,mk,nofvalid=false,{},{},{},{},{},{},0
+    if has_kerns then 
+      local nf,tm=nil,nil
+      for n in traverse_id(glyph_code,head) do 
+        if n.subtype<256 then
+          nofvalid=nofvalid+1
+          valid[nofvalid]=n
+          if n.font~=nf then
+            nf=n.font
+            tm=fontdata[nf].resources.marks
+          end
+          if tm then
+            mk[n]=tm[n.char]
+          end
+          local k=n[a_kernpair]
+          if k then
+            local kk=kerns[k]
+            if kk then
+              local x,y,w,h=kk[2] or 0,kk[3] or 0,kk[4] or 0,kk[5] or 0
+              local dy=y-h
+              if dy~=0 then
+                ky[n]=dy
+              end
+              if w~=0 or x~=0 then
+                wx[n]=kk
+              end
+              rl[n]=kk[1] 
+            end
+          end
+        end
+      end
+    else
+      local nf,tm=nil,nil
+      for n in traverse_id(glyph_code,head) do
+        if n.subtype<256 then
+          nofvalid=nofvalid+1
+          valid[nofvalid]=n
+          if n.font~=nf then
+            nf=n.font
+            tm=fontdata[nf].resources.marks
+          end
+          if tm then
+            mk[n]=tm[n.char]
+          end
+        end
+      end
+    end
+    if nofvalid>0 then
+      local cx={}
+      if has_kerns and next(ky) then
+        for n,k in next,ky do
+          n.yoffset=k
+        end
+      end
+      if has_cursives then
+        local p_cursbase,p=nil,nil
+        local t,d,maxt={},{},0
+        for i=1,nofvalid do 
+          local n=valid[i]
+          if not mk[n] then
+            local n_cursbase=n[a_cursbase]
+            if p_cursbase then
+              local n_curscurs=n[a_curscurs]
+              if p_cursbase==n_curscurs then
+                local c=cursives[n_curscurs]
+                if c then
+                  local rlmode,dx,dy,ws,wn=c[1],c[2],c[3],c[4],c[5]
+                  if rlmode>=0 then
+                    dx=dx-ws
+                  else
+                    dx=dx+wn
+                  end
+                  if dx~=0 then
+                    cx[n]=dx
+                    rl[n]=rlmode
+                  end
+                    dy=-dy
+                  maxt=maxt+1
+                  t[maxt]=p
+                  d[maxt]=dy
+                else
+                  maxt=0
+                end
+              end
+            elseif maxt>0 then
+              local ny=n.yoffset
+              for i=maxt,1,-1 do
+                ny=ny+d[i]
+                local ti=t[i]
+                ti.yoffset=ti.yoffset+ny
+              end
+              maxt=0
+            end
+            if not n_cursbase and maxt>0 then
+              local ny=n.yoffset
+              for i=maxt,1,-1 do
+                ny=ny+d[i]
+                local ti=t[i]
+                ti.yoffset=ny
+              end
+              maxt=0
+            end
+            p_cursbase,p=n_cursbase,n
+          end
+        end
+        if maxt>0 then
+          local ny=n.yoffset
+          for i=maxt,1,-1 do
+            ny=ny+d[i]
+            local ti=t[i]
+            ti.yoffset=ny
+          end
+          maxt=0
+        end
+        if not keep then
+          cursives={}
+        end
+      end
+      if has_marks then
+        for i=1,nofvalid do
+          local p=valid[i]
+          local p_markbase=p[a_markbase]
+          if p_markbase then
+            local mrks=marks[p_markbase]
+            local nofmarks=#mrks
+            for n in traverse_id(glyph_code,p.next) do
+              local n_markmark=n[a_markmark]
+              if p_markbase==n_markmark then
+                local index=n[a_markdone] or 1
+                local d=mrks[index]
+                if d then
+                  local rlmode=d[3]
+                  if rlmode and rlmode>=0 then
+                    local k=wx[p]
                     if k then
-                        local kk = kerns[k]
-                        if kk then
-                            local x, y, w, h = kk[2] or 0, kk[3] or 0, kk[4] or 0, kk[5] or 0
-                            local dy = y - h
-                            if dy ~= 0 then
-                                ky[n] = dy
-                            end
-                            if w ~= 0 or x ~= 0 then
-                                wx[n] = kk
-                            end
-                            rl[n] = kk[1] -- could move in test
-                        end
-                    end
-                end
-            end
-        else
-            local nf, tm = nil, nil
-            for n in traverse_id(glyph_code,head) do
-                if n.subtype < 256 then
-                    nofvalid = nofvalid + 1
-                    valid[nofvalid] = n
-                    if n.font ~= nf then
-                        nf = n.font
-                        tm = fontdata[nf].resources.marks
-                    end
-                    if tm then
-                        mk[n] = tm[n.char]
+                      n.xoffset=p.xoffset-p.width+d[1]-k[2] 
+                    else
+                      n.xoffset=p.xoffset-p.width+d[1] 
                     end
+                  else
+                    local k=wx[p]
+                    if k then
+                      n.xoffset=p.xoffset-d[1]-k[2]
+                    else
+                      n.xoffset=p.xoffset-d[1]
+                    end
+                  end
+                  if mk[p] then
+                    n.yoffset=p.yoffset+d[2]
+                  else
+                    n.yoffset=n.yoffset+p.yoffset+d[2]
+                  end
+                  if nofmarks==1 then
+                    break
+                  else
+                    nofmarks=nofmarks-1
+                  end
                 end
+              else
+              end
             end
+          end
         end
-        if nofvalid > 0 then
-            -- we can assume done == true because we have cursives and marks
-            local cx = { }
-            if has_kerns and next(ky) then
-                for n, k in next, ky do
-                    n.yoffset = k
-                end
-            end
-            -- todo: reuse t and use maxt
-            if has_cursives then
-                local p_cursbase, p = nil, nil
-                -- since we need valid[n+1] we can also use a "while true do"
-                local t, d, maxt = { }, { }, 0
-                for i=1,nofvalid do -- valid == glyphs
-                    local n = valid[i]
-                    if not mk[n] then
-                        local n_cursbase = n[a_cursbase]
-                        if p_cursbase then
-                            local n_curscurs = n[a_curscurs]
-                            if p_cursbase == n_curscurs then
-                                local c = cursives[n_curscurs]
-                                if c then
-                                    local rlmode, dx, dy, ws, wn = c[1], c[2], c[3], c[4], c[5]
-                                    if rlmode >= 0 then
-                                        dx = dx - ws
-                                    else
-                                        dx = dx + wn
-                                    end
-                                    if dx ~= 0 then
-                                        cx[n] = dx
-                                        rl[n] = rlmode
-                                    end
-                                --  if rlmode and rlmode < 0 then
-                                        dy = -dy
-                                --  end
-                                    maxt = maxt + 1
-                                    t[maxt] = p
-                                    d[maxt] = dy
-                                else
-                                    maxt = 0
-                                end
-                            end
-                        elseif maxt > 0 then
-                            local ny = n.yoffset
-                            for i=maxt,1,-1 do
-                                ny = ny + d[i]
-                                local ti = t[i]
-                                ti.yoffset = ti.yoffset + ny
-                            end
-                            maxt = 0
-                        end
-                        if not n_cursbase and maxt > 0 then
-                            local ny = n.yoffset
-                            for i=maxt,1,-1 do
-                                ny = ny + d[i]
-                                local ti = t[i]
-                                ti.yoffset = ny
-                            end
-                            maxt = 0
-                        end
-                        p_cursbase, p = n_cursbase, n
-                    end
-                end
-                if maxt > 0 then
-                    local ny = n.yoffset
-                    for i=maxt,1,-1 do
-                        ny = ny + d[i]
-                        local ti = t[i]
-                        ti.yoffset = ny
-                    end
-                    maxt = 0
-                end
-                if not keep then
-                    cursives = { }
-                end
-            end
-            if has_marks then
-                for i=1,nofvalid do
-                    local p = valid[i]
-                    local p_markbase = p[a_markbase]
-                    if p_markbase then
-                        local mrks = marks[p_markbase]
-                        local nofmarks = #mrks
-                        for n in traverse_id(glyph_code,p.next) do
-                            local n_markmark = n[a_markmark]
-                            if p_markbase == n_markmark then
-                                local index = n[a_markdone] or 1
-                                local d = mrks[index]
-                                if d then
-                                    local rlmode = d[3]
-                                    if rlmode and rlmode >= 0 then
-                                        -- new per 2010-10-06, width adapted per 2010-02-03
-                                        -- we used to negate the width of marks because in tfm
-                                        -- that makes sense but we no longer do that so as a
-                                        -- consequence the sign of p.width was changed
-                                        local k = wx[p]
-                                        if k then
-                                            -- brill roman: A\char"0300 (but ugly anyway)
-                                            n.xoffset = p.xoffset - p.width + d[1] - k[2] -- was + p.width
-                                        else
-                                            -- lucida: U\char"032F (default+mark)
-                                            n.xoffset = p.xoffset - p.width + d[1] -- 01-05-2011
-                                        end
-                                    else
-                                        local k = wx[p]
-                                        if k then
-                                            n.xoffset = p.xoffset - d[1] - k[2]
-                                        else
-                                            n.xoffset = p.xoffset - d[1]
-                                        end
-                                    end
-                                    if mk[p] then
-                                        n.yoffset = p.yoffset + d[2]
-                                    else
-                                        n.yoffset = n.yoffset + p.yoffset + d[2]
-                                    end
-                                    if nofmarks == 1 then
-                                        break
-                                    else
-                                        nofmarks = nofmarks - 1
-                                    end
-                                end
-                            else
-                                -- KE: there can be <mark> <mkmk> <mark> sequences in ligatures
-                            end
-                        end
-                    end
-                end
-                if not keep then
-                    marks = { }
-                end
-            end
-            -- todo : combine
-            if next(wx) then
-                for n, k in next, wx do
-                 -- only w can be nil (kernclasses), can be sped up when w == nil
-                    local x, w = k[2] or 0, k[4]
-                    if w then
-                        local rl = k[1] -- r2l = k[6]
-                        local wx = w - x
-                        if rl < 0 then	-- KE: don't use r2l here
-                            if wx ~= 0 then
-                                insert_node_before(head,n,newkern(wx))
-                            end
-                            if x ~= 0 then
-                                insert_node_after (head,n,newkern(x))
-                            end
-                        else
-                            if x ~= 0 then
-                                insert_node_before(head,n,newkern(x))
-                            end
-                            if wx ~= 0 then
-                                insert_node_after(head,n,newkern(wx))
-                            end
-                        end
-                    elseif x ~= 0 then
-                        -- this needs checking for rl < 0 but it is unlikely that a r2l script
-                        -- uses kernclasses between glyphs so we're probably safe (KE has a
-                        -- problematic font where marks interfere with rl < 0 in the previous
-                        -- case)
-                        insert_node_before(head,n,newkern(x))
-                    end
-                end
-            end
-            if next(cx) then
-                for n, k in next, cx do
-                    if k ~= 0 then
-                        local rln = rl[n]
-                        if rln and rln < 0 then
-                            insert_node_before(head,n,newkern(-k))
-                        else
-                            insert_node_before(head,n,newkern(k))
-                        end
-                    end
-                end
-            end
-            if not keep then
-                kerns = { }
-            end
-            return head, true
-        elseif not keep then
-            kerns, cursives, marks = { }, { }, { }
-        end
-    elseif has_kerns then
-        if trace_injections then
-            trace(head)
-        end
-        for n in traverse_id(glyph_code,head) do
-            if n.subtype < 256 then
-                local k = n[a_kernpair]
-                if k then
-                    local kk = kerns[k]
-                    if kk then
-                        local rl, x, y, w = kk[1], kk[2] or 0, kk[3], kk[4]
-                        if y and y ~= 0 then
-                            n.yoffset = y -- todo: h ?
-                        end
-                        if w then
-                            -- copied from above
-                         -- local r2l = kk[6]
-                            local wx = w - x
-                            if rl < 0 then  -- KE: don't use r2l here
-                                if wx ~= 0 then
-                                    insert_node_before(head,n,newkern(wx))
-                                end
-                                if x ~= 0 then
-                                    insert_node_after (head,n,newkern(x))
-                                end
-                            else
-                                if x ~= 0 then
-                                    insert_node_before(head,n,newkern(x))
-                                end
-                                if wx ~= 0 then
-                                    insert_node_after(head,n,newkern(wx))
-                                end
-                            end
-                        else
-                            -- simple (e.g. kernclass kerns)
-                            if x ~= 0 then
-                                insert_node_before(head,n,newkern(x))
-                            end
-                        end
-                    end
-                end
+        if not keep then
+          marks={}
+        end
+      end
+      if next(wx) then
+        for n,k in next,wx do
+          local x,w=k[2] or 0,k[4]
+          if w then
+            local rl=k[1] 
+            local wx=w-x
+            if rl<0 then	
+              if wx~=0 then
+                insert_node_before(head,n,newkern(wx))
+              end
+              if x~=0 then
+                insert_node_after (head,n,newkern(x))
+              end
+            else
+              if x~=0 then
+                insert_node_before(head,n,newkern(x))
+              end
+              if wx~=0 then
+                insert_node_after(head,n,newkern(wx))
+              end
+            end
+          elseif x~=0 then
+            insert_node_before(head,n,newkern(x))
+          end
+        end
+      end
+      if next(cx) then
+        for n,k in next,cx do
+          if k~=0 then
+            local rln=rl[n]
+            if rln and rln<0 then
+              insert_node_before(head,n,newkern(-k))
+            else
+              insert_node_before(head,n,newkern(k))
             end
+          end
         end
-        if not keep then
-            kerns = { }
+      end
+      if not keep then
+        kerns={}
+      end
+      return head,true
+    elseif not keep then
+      kerns,cursives,marks={},{},{}
+    end
+  elseif has_kerns then
+    if trace_injections then
+      trace(head)
+    end
+    for n in traverse_id(glyph_code,head) do
+      if n.subtype<256 then
+        local k=n[a_kernpair]
+        if k then
+          local kk=kerns[k]
+          if kk then
+            local rl,x,y,w=kk[1],kk[2] or 0,kk[3],kk[4]
+            if y and y~=0 then
+              n.yoffset=y 
+            end
+            if w then
+              local wx=w-x
+              if rl<0 then 
+                if wx~=0 then
+                  insert_node_before(head,n,newkern(wx))
+                end
+                if x~=0 then
+                  insert_node_after (head,n,newkern(x))
+                end
+              else
+                if x~=0 then
+                  insert_node_before(head,n,newkern(x))
+                end
+                if wx~=0 then
+                  insert_node_after(head,n,newkern(wx))
+                end
+              end
+            else
+              if x~=0 then
+                insert_node_before(head,n,newkern(x))
+              end
+            end
+          end
         end
-        return head, true
-    else
-        -- no tracing needed
+      end
     end
-    return head, false
+    if not keep then
+      kerns={}
+    end
+    return head,true
+  else
+  end
+  return head,false
 end
 
 end -- closure
 
 do -- begin closure to overcome local limits and interference
 
-if not modules then modules = { } end modules ['font-ota'] = {
-    version   = 1.001,
-    comment   = "companion to font-otf.lua (analysing)",
-    author    = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
-    copyright = "PRAGMA ADE / ConTeXt Development Team",
-    license   = "see context related readme files"
+if not modules then modules={} end modules ['font-ota']={
+  version=1.001,
+  comment="companion to font-otf.lua (analysing)",
+  author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+  copyright="PRAGMA ADE / ConTeXt Development Team",
+  license="see context related readme files"
 }
-
--- this might become scrp-*.lua
-
-local type = type
-
-if not trackers then trackers = { register = function() end } end
-
-local trace_analyzing = false  trackers.register("otf.analyzing",  function(v) trace_analyzing = v end)
-
-local fonts, nodes, node = fonts, nodes, node
-
-local allocate            = utilities.storage.allocate
-
-local otf                 = fonts.handlers.otf
-
-local analyzers           = fonts.analyzers
-local initializers        = allocate()
-local methods             = allocate()
-
-analyzers.initializers    = initializers
-analyzers.methods         = methods
-analyzers.useunicodemarks = false
-
-local a_state             = attributes.private('state')
-
-local nodecodes           = nodes.nodecodes
-local glyph_code          = nodecodes.glyph
-
-local traverse_id         = node.traverse_id
-local traverse_node_list  = node.traverse
-
-local fontdata            = fonts.hashes.identifiers
-local categories          = characters and characters.categories or { } -- sorry, only in context
-
-local otffeatures         = fonts.constructors.newfeatures("otf")
-local registerotffeature  = otffeatures.register
-
---[[ldx--
-<p>Analyzers run per script and/or language and are needed in order to
-process features right.</p>
---ldx]]--
-
--- never use these numbers directly
-
-local s_init = 1    local s_rphf =  7
-local s_medi = 2    local s_half =  8
-local s_fina = 3    local s_pref =  9
-local s_isol = 4    local s_blwf = 10
-local s_mark = 5    local s_pstf = 11
-local s_rest = 6
-
-local states = {
-    init = s_init,
-    medi = s_medi,
-    fina = s_fina,
-    isol = s_isol,
-    mark = s_mark,
-    rest = s_rest,
-    rphf = s_rphf,
-    half = s_half,
-    pref = s_pref,
-    blwf = s_blwf,
-    pstf = s_pstf,
+local type=type
+if not trackers then trackers={ register=function() end } end
+local trace_analyzing=false trackers.register("otf.analyzing",function(v) trace_analyzing=v end)
+local fonts,nodes,node=fonts,nodes,node
+local allocate=utilities.storage.allocate
+local otf=fonts.handlers.otf
+local analyzers=fonts.analyzers
+local initializers=allocate()
+local methods=allocate()
+analyzers.initializers=initializers
+analyzers.methods=methods
+analyzers.useunicodemarks=false
+local a_state=attributes.private('state')
+local nodecodes=nodes.nodecodes
+local glyph_code=nodecodes.glyph
+local math_code=nodecodes.math
+local traverse_id=node.traverse_id
+local traverse_node_list=node.traverse
+local endofmath=nodes.endofmath
+local fontdata=fonts.hashes.identifiers
+local categories=characters and characters.categories or {} 
+local otffeatures=fonts.constructors.newfeatures("otf")
+local registerotffeature=otffeatures.register
+local s_init=1  local s_rphf=7
+local s_medi=2  local s_half=8
+local s_fina=3  local s_pref=9
+local s_isol=4  local s_blwf=10
+local s_mark=5  local s_pstf=11
+local s_rest=6
+local states={
+  init=s_init,
+  medi=s_medi,
+  fina=s_fina,
+  isol=s_isol,
+  mark=s_mark,
+  rest=s_rest,
+  rphf=s_rphf,
+  half=s_half,
+  pref=s_pref,
+  blwf=s_blwf,
+  pstf=s_pstf,
 }
-
-local features = {
-    init = s_init,
-    medi = s_medi,
-    fina = s_fina,
-    isol = s_isol,
- -- mark = s_mark,
+local features={
+  init=s_init,
+  medi=s_medi,
+  fina=s_fina,
+  isol=s_isol,
 }
-
-analyzers.states   = states
-analyzers.features = features
-
--- todo: analyzers per script/lang, cross font, so we need an font id hash -> script
--- e.g. latin -> hyphenate, arab -> 1/2/3 analyze -- its own namespace
-
+analyzers.states=states
+analyzers.features=features
 function analyzers.setstate(head,font)
-    local useunicodemarks  = analyzers.useunicodemarks
-    local tfmdata = fontdata[font]
-    local characters = tfmdata.characters
-    local descriptions = tfmdata.descriptions
-    local first, last, current, n, done = nil, nil, head, 0, false -- maybe make n boolean
-    while current do
-        local id = current.id
-        if id == glyph_code and current.font == font then
-            local char = current.char
-            local d = descriptions[char]
-            if d then
-                if d.class == "mark" or (useunicodemarks and categories[char] == "mn") then
-                    done = true
-                    current[a_state] = s_mark
-                elseif n == 0 then
-                    first, last, n = current, current, 1
-                    current[a_state] = s_init
-                else
-                    last, n = current, n+1
-                    current[a_state] = s_medi
-                end
-            else -- finish
-                if first and first == last then
-                    last[a_state] = s_isol
-                elseif last then
-                    last[a_state] = s_fina
-                end
-                first, last, n = nil, nil, 0
-            end
-        elseif id == disc_code then
-            -- always in the middle
-            current[a_state] = s_midi
-            last = current
-        else -- finish
-            if first and first == last then
-                last[a_state] = s_isol
-            elseif last then
-                last[a_state] = s_fina
-            end
-            first, last, n = nil, nil, 0
-        end
-        current = current.next
-    end
-    if first and first == last then
-        last[a_state] = s_isol
-    elseif last then
-        last[a_state] = s_fina
-    end
-    return head, done
-end
-
--- in the future we will use language/script attributes instead of the
--- font related value, but then we also need dynamic features which is
--- somewhat slower; and .. we need a chain of them
-
-local function analyzeinitializer(tfmdata,value) -- attr
-    local script, language = otf.scriptandlanguage(tfmdata) -- attr
-    local action = initializers[script]
-    if not action then
-        -- skip
-    elseif type(action) == "function" then
-        return action(tfmdata,value)
-    else
-        local action = action[language]
-        if action then
-            return action(tfmdata,value)
-        end
-    end
+  local useunicodemarks=analyzers.useunicodemarks
+  local tfmdata=fontdata[font]
+  local characters=tfmdata.characters
+  local descriptions=tfmdata.descriptions
+  local first,last,current,n,done=nil,nil,head,0,false 
+  while current do
+    local id=current.id
+    if id==glyph_code and current.font==font then
+      local char=current.char
+      local d=descriptions[char]
+      if d then
+        if d.class=="mark" or (useunicodemarks and categories[char]=="mn") then
+          done=true
+          current[a_state]=s_mark
+        elseif n==0 then
+          first,last,n=current,current,1
+          current[a_state]=s_init
+        else
+          last,n=current,n+1
+          current[a_state]=s_medi
+        end
+      else 
+        if first and first==last then
+          last[a_state]=s_isol
+        elseif last then
+          last[a_state]=s_fina
+        end
+        first,last,n=nil,nil,0
+      end
+    elseif id==disc_code then
+      current[a_state]=s_midi
+      last=current
+    else 
+      if first and first==last then
+        last[a_state]=s_isol
+      elseif last then
+        last[a_state]=s_fina
+      end
+      first,last,n=nil,nil,0
+    end
+    current=current.next
+  end
+  if first and first==last then
+    last[a_state]=s_isol
+  elseif last then
+    last[a_state]=s_fina
+  end
+  return head,done
+end
+local function analyzeinitializer(tfmdata,value) 
+  local script,language=otf.scriptandlanguage(tfmdata) 
+  local action=initializers[script]
+  if not action then
+  elseif type(action)=="function" then
+    return action(tfmdata,value)
+  else
+    local action=action[language]
+    if action then
+      return action(tfmdata,value)
+    end
+  end
 end
-
 local function analyzeprocessor(head,font,attr)
-    local tfmdata = fontdata[font]
-    local script, language = otf.scriptandlanguage(tfmdata,attr)
-    local action = methods[script]
-    if not action then
-        -- skip
-    elseif type(action) == "function" then
-        return action(head,font,attr)
-    else
-        action = action[language]
-        if action then
-            return action(head,font,attr)
-        end
-    end
-    return head, false
+  local tfmdata=fontdata[font]
+  local script,language=otf.scriptandlanguage(tfmdata,attr)
+  local action=methods[script]
+  if not action then
+  elseif type(action)=="function" then
+    return action(head,font,attr)
+  else
+    action=action[language]
+    if action then
+      return action(head,font,attr)
+    end
+  end
+  return head,false
 end
-
 registerotffeature {
-    name         = "analyze",
-    description  = "analysis of (for instance) character classes",
-    default      = true,
-    initializers = {
-        node     = analyzeinitializer,
-    },
-    processors = {
-        position = 1,
-        node     = analyzeprocessor,
-    }
+  name="analyze",
+  description="analysis of (for instance) character classes",
+  default=true,
+  initializers={
+    node=analyzeinitializer,
+  },
+  processors={
+    position=1,
+    node=analyzeprocessor,
+  }
 }
-
--- latin
-
-methods.latn = analyzers.setstate
-
--- this info eventually will go into char-def and we will have a state
--- table for generic then
-
-local zwnj = 0x200C
-local zwj  = 0x200D
-
-local isol = {
-    [0x0600] = true, [0x0601] = true, [0x0602] = true, [0x0603] = true,
-    [0x0608] = true, [0x060B] = true, [0x0621] = true, [0x0674] = true,
-    [0x06DD] = true, [zwnj] = true,
+methods.latn=analyzers.setstate
+local zwnj=0x200C
+local zwj=0x200D
+local isol={
+  [0x0600]=true,[0x0601]=true,[0x0602]=true,[0x0603]=true,
+  [0x0608]=true,[0x060B]=true,[0x0621]=true,[0x0674]=true,
+  [0x06DD]=true,[zwnj]=true,
 }
-
-local isol_fina = {
-    [0x0622] = true, [0x0623] = true, [0x0624] = true, [0x0625] = true,
-    [0x0627] = true, [0x0629] = true, [0x062F] = true, [0x0630] = true,
-    [0x0631] = true, [0x0632] = true, [0x0648] = true, [0x0671] = true,
-    [0x0672] = true, [0x0673] = true, [0x0675] = true, [0x0676] = true,
-    [0x0677] = true, [0x0688] = true, [0x0689] = true, [0x068A] = true,
-    [0x068B] = true, [0x068C] = true, [0x068D] = true, [0x068E] = true,
-    [0x068F] = true, [0x0690] = true, [0x0691] = true, [0x0692] = true,
-    [0x0693] = true, [0x0694] = true, [0x0695] = true, [0x0696] = true,
-    [0x0697] = true, [0x0698] = true, [0x0699] = true, [0x06C0] = true,
-    [0x06C3] = true, [0x06C4] = true, [0x06C5] = true, [0x06C6] = true,
-    [0x06C7] = true, [0x06C8] = true, [0x06C9] = true, [0x06CA] = true,
-    [0x06CB] = true, [0x06CD] = true, [0x06CF] = true, [0x06D2] = true,
-    [0x06D3] = true, [0x06D5] = true, [0x06EE] = true, [0x06EF] = true,
-    [0x0759] = true, [0x075A] = true, [0x075B] = true, [0x076B] = true,
-    [0x076C] = true, [0x0771] = true, [0x0773] = true, [0x0774] = true,
-	[0x0778] = true, [0x0779] = true, [0xFEF5] = true, [0xFEF7] = true,
-	[0xFEF9] = true, [0xFEFB] = true,
-
-    -- syriac
-
-	[0x0710] = true, [0x0715] = true, [0x0716] = true, [0x0717] = true,
-	[0x0718] = true, [0x0719] = true, [0x0728] = true, [0x072A] = true,
-	[0x072C] = true, [0x071E] = true,
+local isol_fina={
+  [0x0622]=true,[0x0623]=true,[0x0624]=true,[0x0625]=true,
+  [0x0627]=true,[0x0629]=true,[0x062F]=true,[0x0630]=true,
+  [0x0631]=true,[0x0632]=true,[0x0648]=true,[0x0671]=true,
+  [0x0672]=true,[0x0673]=true,[0x0675]=true,[0x0676]=true,
+  [0x0677]=true,[0x0688]=true,[0x0689]=true,[0x068A]=true,
+  [0x068B]=true,[0x068C]=true,[0x068D]=true,[0x068E]=true,
+  [0x068F]=true,[0x0690]=true,[0x0691]=true,[0x0692]=true,
+  [0x0693]=true,[0x0694]=true,[0x0695]=true,[0x0696]=true,
+  [0x0697]=true,[0x0698]=true,[0x0699]=true,[0x06C0]=true,
+  [0x06C3]=true,[0x06C4]=true,[0x06C5]=true,[0x06C6]=true,
+  [0x06C7]=true,[0x06C8]=true,[0x06C9]=true,[0x06CA]=true,
+  [0x06CB]=true,[0x06CD]=true,[0x06CF]=true,[0x06D2]=true,
+  [0x06D3]=true,[0x06D5]=true,[0x06EE]=true,[0x06EF]=true,
+  [0x0759]=true,[0x075A]=true,[0x075B]=true,[0x076B]=true,
+  [0x076C]=true,[0x0771]=true,[0x0773]=true,[0x0774]=true,
+	[0x0778]=true,[0x0779]=true,[0xFEF5]=true,[0xFEF7]=true,
+	[0xFEF9]=true,[0xFEFB]=true,
+	[0x0710]=true,[0x0715]=true,[0x0716]=true,[0x0717]=true,
+	[0x0718]=true,[0x0719]=true,[0x0728]=true,[0x072A]=true,
+	[0x072C]=true,[0x071E]=true,
 }
-
-local isol_fina_medi_init = {
-    [0x0626] = true, [0x0628] = true, [0x062A] = true, [0x062B] = true,
-    [0x062C] = true, [0x062D] = true, [0x062E] = true, [0x0633] = true,
-    [0x0634] = true, [0x0635] = true, [0x0636] = true, [0x0637] = true,
-    [0x0638] = true, [0x0639] = true, [0x063A] = true, [0x063B] = true,
-    [0x063C] = true, [0x063D] = true, [0x063E] = true, [0x063F] = true,
-    [0x0640] = true, [0x0641] = true, [0x0642] = true, [0x0643] = true,
-    [0x0644] = true, [0x0645] = true, [0x0646] = true, [0x0647] = true,
-    [0x0649] = true, [0x064A] = true, [0x066E] = true, [0x066F] = true,
-    [0x0678] = true, [0x0679] = true, [0x067A] = true, [0x067B] = true,
-    [0x067C] = true, [0x067D] = true, [0x067E] = true, [0x067F] = true,
-    [0x0680] = true, [0x0681] = true, [0x0682] = true, [0x0683] = true,
-    [0x0684] = true, [0x0685] = true, [0x0686] = true, [0x0687] = true,
-    [0x069A] = true, [0x069B] = true, [0x069C] = true, [0x069D] = true,
-    [0x069E] = true, [0x069F] = true, [0x06A0] = true, [0x06A1] = true,
-    [0x06A2] = true, [0x06A3] = true, [0x06A4] = true, [0x06A5] = true,
-    [0x06A6] = true, [0x06A7] = true, [0x06A8] = true, [0x06A9] = true,
-    [0x06AA] = true, [0x06AB] = true, [0x06AC] = true, [0x06AD] = true,
-    [0x06AE] = true, [0x06AF] = true, [0x06B0] = true, [0x06B1] = true,
-    [0x06B2] = true, [0x06B3] = true, [0x06B4] = true, [0x06B5] = true,
-    [0x06B6] = true, [0x06B7] = true, [0x06B8] = true, [0x06B9] = true,
-    [0x06BA] = true, [0x06BB] = true, [0x06BC] = true, [0x06BD] = true,
-    [0x06BE] = true, [0x06BF] = true, [0x06C1] = true, [0x06C2] = true,
-    [0x06CC] = true, [0x06CE] = true, [0x06D0] = true, [0x06D1] = true,
-    [0x06FA] = true, [0x06FB] = true, [0x06FC] = true, [0x06FF] = true,
-    [0x0750] = true, [0x0751] = true, [0x0752] = true, [0x0753] = true,
-    [0x0754] = true, [0x0755] = true, [0x0756] = true, [0x0757] = true,
-    [0x0758] = true, [0x075C] = true, [0x075D] = true, [0x075E] = true,
-    [0x075F] = true, [0x0760] = true, [0x0761] = true, [0x0762] = true,
-    [0x0763] = true, [0x0764] = true, [0x0765] = true, [0x0766] = true,
-    [0x0767] = true, [0x0768] = true, [0x0769] = true, [0x076A] = true,
-    [0x076D] = true, [0x076E] = true, [0x076F] = true, [0x0770] = true,
-    [0x0772] = true, [0x0775] = true, [0x0776] = true, [0x0777] = true,
-    [0x077A] = true, [0x077B] = true, [0x077C] = true, [0x077D] = true,
-    [0x077E] = true, [0x077F] = true,
-
-    -- syriac
-
-    [0x0712] = true, [0x0713] = true, [0x0714] = true, [0x071A] = true,
-    [0x071B] = true, [0x071C] = true, [0x071D] = true, [0x071F] = true,
-    [0x0720] = true, [0x0721] = true, [0x0722] = true, [0x0723] = true,
-    [0x0724] = true, [0x0725] = true, [0x0726] = true, [0x0727] = true,
-    [0x0729] = true, [0x072B] = true,
-
-    -- also
-
-    [zwj] = true,
+local isol_fina_medi_init={
+  [0x0626]=true,[0x0628]=true,[0x062A]=true,[0x062B]=true,
+  [0x062C]=true,[0x062D]=true,[0x062E]=true,[0x0633]=true,
+  [0x0634]=true,[0x0635]=true,[0x0636]=true,[0x0637]=true,
+  [0x0638]=true,[0x0639]=true,[0x063A]=true,[0x063B]=true,
+  [0x063C]=true,[0x063D]=true,[0x063E]=true,[0x063F]=true,
+  [0x0640]=true,[0x0641]=true,[0x0642]=true,[0x0643]=true,
+  [0x0644]=true,[0x0645]=true,[0x0646]=true,[0x0647]=true,
+  [0x0649]=true,[0x064A]=true,[0x066E]=true,[0x066F]=true,
+  [0x0678]=true,[0x0679]=true,[0x067A]=true,[0x067B]=true,
+  [0x067C]=true,[0x067D]=true,[0x067E]=true,[0x067F]=true,
+  [0x0680]=true,[0x0681]=true,[0x0682]=true,[0x0683]=true,
+  [0x0684]=true,[0x0685]=true,[0x0686]=true,[0x0687]=true,
+  [0x069A]=true,[0x069B]=true,[0x069C]=true,[0x069D]=true,
+  [0x069E]=true,[0x069F]=true,[0x06A0]=true,[0x06A1]=true,
+  [0x06A2]=true,[0x06A3]=true,[0x06A4]=true,[0x06A5]=true,
+  [0x06A6]=true,[0x06A7]=true,[0x06A8]=true,[0x06A9]=true,
+  [0x06AA]=true,[0x06AB]=true,[0x06AC]=true,[0x06AD]=true,
+  [0x06AE]=true,[0x06AF]=true,[0x06B0]=true,[0x06B1]=true,
+  [0x06B2]=true,[0x06B3]=true,[0x06B4]=true,[0x06B5]=true,
+  [0x06B6]=true,[0x06B7]=true,[0x06B8]=true,[0x06B9]=true,
+  [0x06BA]=true,[0x06BB]=true,[0x06BC]=true,[0x06BD]=true,
+  [0x06BE]=true,[0x06BF]=true,[0x06C1]=true,[0x06C2]=true,
+  [0x06CC]=true,[0x06CE]=true,[0x06D0]=true,[0x06D1]=true,
+  [0x06FA]=true,[0x06FB]=true,[0x06FC]=true,[0x06FF]=true,
+  [0x0750]=true,[0x0751]=true,[0x0752]=true,[0x0753]=true,
+  [0x0754]=true,[0x0755]=true,[0x0756]=true,[0x0757]=true,
+  [0x0758]=true,[0x075C]=true,[0x075D]=true,[0x075E]=true,
+  [0x075F]=true,[0x0760]=true,[0x0761]=true,[0x0762]=true,
+  [0x0763]=true,[0x0764]=true,[0x0765]=true,[0x0766]=true,
+  [0x0767]=true,[0x0768]=true,[0x0769]=true,[0x076A]=true,
+  [0x076D]=true,[0x076E]=true,[0x076F]=true,[0x0770]=true,
+  [0x0772]=true,[0x0775]=true,[0x0776]=true,[0x0777]=true,
+  [0x077A]=true,[0x077B]=true,[0x077C]=true,[0x077D]=true,
+  [0x077E]=true,[0x077F]=true,
+  [0x0712]=true,[0x0713]=true,[0x0714]=true,[0x071A]=true,
+  [0x071B]=true,[0x071C]=true,[0x071D]=true,[0x071F]=true,
+  [0x0720]=true,[0x0721]=true,[0x0722]=true,[0x0723]=true,
+  [0x0724]=true,[0x0725]=true,[0x0726]=true,[0x0727]=true,
+  [0x0729]=true,[0x072B]=true,
+  [zwj]=true,
 }
-
-local arab_warned = { }
-
--- todo: gref
-
+local arab_warned={}
 local function warning(current,what)
-    local char = current.char
-    if not arab_warned[char] then
-        log.report("analyze","arab: character %s (U+%05X) has no %s class", char, char, what)
-        arab_warned[char] = true
-    end
+  local char=current.char
+  if not arab_warned[char] then
+    log.report("analyze","arab: character %s (U+%05X) has no %s class",char,char,what)
+    arab_warned[char]=true
+  end
 end
-
 local function finish(first,last)
-    if last then
-        if first == last then
-            local fc = first.char
-            if isol_fina_medi_init[fc] or isol_fina[fc] then
-                first[a_state] = s_isol
-            else
-                warning(first,"isol")
-                first[a_state] = s_error
-            end
-        else
-            local lc = last.char
-            if isol_fina_medi_init[lc] or isol_fina[lc] then -- why isol here ?
-            -- if laststate == 1 or laststate == 2 or laststate == 4 then
-                last[a_state] = s_fina
-            else
-                warning(last,"fina")
-                last[a_state] = s_error
-            end
-        end
-        first, last = nil, nil
-    elseif first then
-        -- first and last are either both set so we never com here
-        local fc = first.char
-        if isol_fina_medi_init[fc] or isol_fina[fc] then
-            first[a_state] = s_isol
-        else
-            warning(first,"isol")
-            first[a_state] = s_error
-        end
-        first = nil
-    end
-    return first, last
-end
-
-function methods.arab(head,font,attr) -- maybe make a special version with no trace
-    local useunicodemarks = analyzers.useunicodemarks
-    local tfmdata = fontdata[font]
-    local marks = tfmdata.resources.marks
-    local first, last, current, done = nil, nil, head, false
-    while current do
-        if current.id == glyph_code and current.font == font and current.subtype<256 and not current[a_state] then
-            done = true
-            local char = current.char
-            if marks[char] or (useunicodemarks and categories[char] == "mn") then
-                current[a_state] = s_mark
-            elseif isol[char] then -- can be zwj or zwnj too
-                first, last = finish(first,last)
-                current[a_state] = s_isol
-                first, last = nil, nil
-            elseif not first then
-                if isol_fina_medi_init[char] then
-                    current[a_state] = s_init
-                    first, last = first or current, current
-                elseif isol_fina[char] then
-                    current[a_state] = s_isol
-                    first, last = nil, nil
-                else -- no arab
-                    first, last = finish(first,last)
-                end
-            elseif isol_fina_medi_init[char] then
-                first, last = first or current, current
-                current[a_state] = s_medi
-            elseif isol_fina[char] then
-                if not last[a_state] == s_init then
-                    -- tricky, we need to check what last may be !
-                    last[a_state] = s_medi
-                end
-                current[a_state] = s_fina
-                first, last = nil, nil
-            elseif char >= 0x0600 and char <= 0x06FF then
-                current[a_state] = s_rest
-                first, last = finish(first,last)
-            else --no
-                first, last = finish(first,last)
-            end
-        else
-            first, last = finish(first,last)
-        end
-        current = current.next
+  if last then
+    if first==last then
+      local fc=first.char
+      if isol_fina_medi_init[fc] or isol_fina[fc] then
+        first[a_state]=s_isol
+      else
+        warning(first,"isol")
+        first[a_state]=s_error
+      end
+    else
+      local lc=last.char
+      if isol_fina_medi_init[lc] or isol_fina[lc] then
+        last[a_state]=s_fina
+      else
+        warning(last,"fina")
+        last[a_state]=s_error
+      end
+    end
+    first,last=nil,nil
+  elseif first then
+    local fc=first.char
+    if isol_fina_medi_init[fc] or isol_fina[fc] then
+      first[a_state]=s_isol
+    else
+      warning(first,"isol")
+      first[a_state]=s_error
+    end
+    first=nil
+  end
+  return first,last
+end
+function methods.arab(head,font,attr) 
+  local useunicodemarks=analyzers.useunicodemarks
+  local tfmdata=fontdata[font]
+  local marks=tfmdata.resources.marks
+  local first,last,current,done=nil,nil,head,false
+  while current do
+    if current.id==glyph_code and current.font==font and current.subtype<256 and not current[a_state] then
+      done=true
+      local char=current.char
+      if marks[char] or (useunicodemarks and categories[char]=="mn") then
+        current[a_state]=s_mark
+      elseif isol[char] then 
+        first,last=finish(first,last)
+        current[a_state]=s_isol
+        first,last=nil,nil
+      elseif not first then
+        if isol_fina_medi_init[char] then
+          current[a_state]=s_init
+          first,last=first or current,current
+        elseif isol_fina[char] then
+          current[a_state]=s_isol
+          first,last=nil,nil
+        else 
+          first,last=finish(first,last)
+        end
+      elseif isol_fina_medi_init[char] then
+        first,last=first or current,current
+        current[a_state]=s_medi
+      elseif isol_fina[char] then
+        if not last[a_state]==s_init then
+          last[a_state]=s_medi
+        end
+        current[a_state]=s_fina
+        first,last=nil,nil
+      elseif char>=0x0600 and char<=0x06FF then
+        current[a_state]=s_rest
+        first,last=finish(first,last)
+      else 
+        first,last=finish(first,last)
+      end
+    else
+      first,last=finish(first,last)
     end
-    first, last = finish(first,last)
-    return head, done
+    current=current.next
+  end
+  first,last=finish(first,last)
+  return head,done
 end
-
-methods.syrc = methods.arab
-
+methods.syrc=methods.arab
 directives.register("otf.analyze.useunicodemarks",function(v)
-    analyzers.useunicodemarks = v
+  analyzers.useunicodemarks=v
 end)
 
 end -- closure
 
 do -- begin closure to overcome local limits and interference
 
-if not modules then modules = { } end modules ['font-otn'] = {
-    version   = 1.001,
-    comment   = "companion to font-ini.mkiv",
-    author    = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
-    copyright = "PRAGMA ADE / ConTeXt Development Team",
-    license   = "see context related readme files",
+if not modules then modules={} end modules ['font-otn']={
+  version=1.001,
+  comment="companion to font-ini.mkiv",
+  author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+  copyright="PRAGMA ADE / ConTeXt Development Team",
+  license="see context related readme files",
 }
-
--- preprocessors = { "nodes" }
-
--- this is still somewhat preliminary and it will get better in due time;
--- much functionality could only be implemented thanks to the husayni font
--- of Idris Samawi Hamid to who we dedicate this module.
-
--- in retrospect it always looks easy but believe it or not, it took a lot
--- of work to get proper open type support done: buggy fonts, fuzzy specs,
--- special made testfonts, many skype sessions between taco, idris and me,
--- torture tests etc etc ... unfortunately the code does not show how much
--- time it took ...
-
--- todo:
---
--- kerning is probably not yet ok for latin around dics nodes
--- extension infrastructure (for usage out of context)
--- sorting features according to vendors/renderers
--- alternative loop quitters
--- check cursive and r2l
--- find out where ignore-mark-classes went
--- default features (per language, script)
--- handle positions (we need example fonts)
--- handle gpos_single (we might want an extra width field in glyph nodes because adding kerns might interfere)
--- mark (to mark) code is still not what it should be (too messy but we need some more extreem husayni tests)
--- remove some optimizations (when I have a faster machine)
-
-
---[[ldx--
-<p>This module is a bit more split up that I'd like but since we also want to test
-with plain <l n='tex'/> it has to be so. This module is part of <l n='context'/>
-and discussion about improvements and functionality mostly happens on the
-<l n='context'/> mailing list.</p>
-
-<p>The specification of OpenType is kind of vague. Apart from a lack of a proper
-free specifications there's also the problem that Microsoft and Adobe
-may have their own interpretation of how and in what order to apply features.
-In general the Microsoft website has more detailed specifications and is a
-better reference. There is also some information in the FontForge help files.</p>
-
-<p>Because there is so much possible, fonts might contain bugs and/or be made to
-work with certain rederers. These may evolve over time which may have the side
-effect that suddenly fonts behave differently.</p>
-
-<p>After a lot of experiments (mostly by Taco, me and Idris) we're now at yet another
-implementation. Of course all errors are mine and of course the code can be
-improved. There are quite some optimizations going on here and processing speed
-is currently acceptable. Not all functions are implemented yet, often because I
-lack the fonts for testing. Many scripts are not yet supported either, but I will
-look into them as soon as <l n='context'/> users ask for it.</p>
-
-<p>Because there are different interpretations possible, I will extend the code
-with more (configureable) variants. I can also add hooks for users so that they can
-write their own extensions.</p>
-
-<p>Glyphs are indexed not by unicode but in their own way. This is because there is no
-relationship with unicode at all, apart from the fact that a font might cover certain
-ranges of characters. One character can have multiple shapes. However, at the
-<l n='tex'/> end we use unicode so and all extra glyphs are mapped into a private
-space. This is needed because we need to access them and <l n='tex'/> has to include
-then in the output eventually.</p>
-
-<p>The raw table as it coms from <l n='fontforge'/> gets reorganized in to fit out needs.
-In <l n='context'/> that table is packed (similar tables are shared) and cached on disk
-so that successive runs can use the optimized table (after loading the table is
-unpacked). The flattening code used later is a prelude to an even more compact table
-format (and as such it keeps evolving).</p>
-
-<p>This module is sparsely documented because it is a moving target. The table format
-of the reader changes and we experiment a lot with different methods for supporting
-features.</p>
-
-<p>As with the <l n='afm'/> code, we may decide to store more information in the
-<l n='otf'/> table.</p>
-
-<p>Incrementing the version number will force a re-cache. We jump the number by one
-when there's a fix in the <l n='fontforge'/> library or <l n='lua'/> code that
-results in different tables.</p>
---ldx]]--
-
--- action                    handler     chainproc             chainmore              comment
---
--- gsub_single               ok          ok                    ok
--- gsub_multiple             ok          ok                    not implemented yet
--- gsub_alternate            ok          ok                    not implemented yet
--- gsub_ligature             ok          ok                    ok
--- gsub_context              ok          --
--- gsub_contextchain         ok          --
--- gsub_reversecontextchain  ok          --
--- chainsub                  --          ok
--- reversesub                --          ok
--- gpos_mark2base            ok          ok
--- gpos_mark2ligature        ok          ok
--- gpos_mark2mark            ok          ok
--- gpos_cursive              ok          untested
--- gpos_single               ok          ok
--- gpos_pair                 ok          ok
--- gpos_context              ok          --
--- gpos_contextchain         ok          --
---
--- todo: contextpos and contextsub and class stuff
---
--- actions:
---
--- handler   : actions triggered by lookup
--- chainproc : actions triggered by contextual lookup
--- chainmore : multiple substitutions triggered by contextual lookup (e.g. fij -> f + ij)
---
--- remark: the 'not implemented yet' variants will be done when we have fonts that use them
--- remark: we need to check what to do with discretionaries
-
--- We used to have independent hashes for lookups but as the tags are unique
--- we now use only one hash. If needed we can have multiple again but in that
--- case I will probably prefix (i.e. rename) the lookups in the cached font file.
-
--- Todo: make plugin feature that operates on char/glyphnode arrays
-
-local concat, insert, remove = table.concat, table.insert, table.remove
-local format, gmatch, gsub, find, match, lower, strip = string.format, string.gmatch, string.gsub, string.find, string.match, string.lower, string.strip
-local type, next, tonumber, tostring = type, next, tonumber, tostring
-local lpegmatch = lpeg.match
-local random = math.random
-
-local logs, trackers, nodes, attributes = logs, trackers, nodes, attributes
-
-local registertracker = trackers.register
-
-local fonts = fonts
-local otf   = fonts.handlers.otf
-
-local trace_lookups      = false  registertracker("otf.lookups",      function(v) trace_lookups      = v end)
-local trace_singles      = false  registertracker("otf.singles",      function(v) trace_singles      = v end)
-local trace_multiples    = false  registertracker("otf.multiples",    function(v) trace_multiples    = v end)
-local trace_alternatives = false  registertracker("otf.alternatives", function(v) trace_alternatives = v end)
-local trace_ligatures    = false  registertracker("otf.ligatures",    function(v) trace_ligatures    = v end)
-local trace_contexts     = false  registertracker("otf.contexts",     function(v) trace_contexts     = v end)
-local trace_marks        = false  registertracker("otf.marks",        function(v) trace_marks        = v end)
-local trace_kerns        = false  registertracker("otf.kerns",        function(v) trace_kerns        = v end)
-local trace_cursive      = false  registertracker("otf.cursive",      function(v) trace_cursive      = v end)
-local trace_preparing    = false  registertracker("otf.preparing",    function(v) trace_preparing    = v end)
-local trace_bugs         = false  registertracker("otf.bugs",         function(v) trace_bugs         = v end)
-local trace_details      = false  registertracker("otf.details",      function(v) trace_details      = v end)
-local trace_applied      = false  registertracker("otf.applied",      function(v) trace_applied      = v end)
-local trace_steps        = false  registertracker("otf.steps",        function(v) trace_steps        = v end)
-local trace_skips        = false  registertracker("otf.skips",        function(v) trace_skips        = v end)
-local trace_directions   = false  registertracker("otf.directions",   function(v) trace_directions   = v end)
-
-local report_direct   = logs.reporter("fonts","otf direct")
-local report_subchain = logs.reporter("fonts","otf subchain")
-local report_chain    = logs.reporter("fonts","otf chain")
-local report_process  = logs.reporter("fonts","otf process")
-local report_prepare  = logs.reporter("fonts","otf prepare")
-local report_warning  = logs.reporter("fonts","otf warning")
-
-registertracker("otf.verbose_chain", function(v) otf.setcontextchain(v and "verbose") end)
-registertracker("otf.normal_chain",  function(v) otf.setcontextchain(v and "normal")  end)
-
-registertracker("otf.replacements", "otf.singles,otf.multiples,otf.alternatives,otf.ligatures")
+local concat,insert,remove=table.concat,table.insert,table.remove
+local format,gmatch,gsub,find,match,lower,strip=string.format,string.gmatch,string.gsub,string.find,string.match,string.lower,string.strip
+local type,next,tonumber,tostring=type,next,tonumber,tostring
+local lpegmatch=lpeg.match
+local random=math.random
+local logs,trackers,nodes,attributes=logs,trackers,nodes,attributes
+local registertracker=trackers.register
+local fonts=fonts
+local otf=fonts.handlers.otf
+local trace_lookups=false registertracker("otf.lookups",function(v) trace_lookups=v end)
+local trace_singles=false registertracker("otf.singles",function(v) trace_singles=v end)
+local trace_multiples=false registertracker("otf.multiples",function(v) trace_multiples=v end)
+local trace_alternatives=false registertracker("otf.alternatives",function(v) trace_alternatives=v end)
+local trace_ligatures=false registertracker("otf.ligatures",function(v) trace_ligatures=v end)
+local trace_contexts=false registertracker("otf.contexts",function(v) trace_contexts=v end)
+local trace_marks=false registertracker("otf.marks",function(v) trace_marks=v end)
+local trace_kerns=false registertracker("otf.kerns",function(v) trace_kerns=v end)
+local trace_cursive=false registertracker("otf.cursive",function(v) trace_cursive=v end)
+local trace_preparing=false registertracker("otf.preparing",function(v) trace_preparing=v end)
+local trace_bugs=false registertracker("otf.bugs",function(v) trace_bugs=v end)
+local trace_details=false registertracker("otf.details",function(v) trace_details=v end)
+local trace_applied=false registertracker("otf.applied",function(v) trace_applied=v end)
+local trace_steps=false registertracker("otf.steps",function(v) trace_steps=v end)
+local trace_skips=false registertracker("otf.skips",function(v) trace_skips=v end)
+local trace_directions=false registertracker("otf.directions",function(v) trace_directions=v end)
+local report_direct=logs.reporter("fonts","otf direct")
+local report_subchain=logs.reporter("fonts","otf subchain")
+local report_chain=logs.reporter("fonts","otf chain")
+local report_process=logs.reporter("fonts","otf process")
+local report_prepare=logs.reporter("fonts","otf prepare")
+local report_warning=logs.reporter("fonts","otf warning")
+registertracker("otf.verbose_chain",function(v) otf.setcontextchain(v and "verbose") end)
+registertracker("otf.normal_chain",function(v) otf.setcontextchain(v and "normal") end)
+registertracker("otf.replacements","otf.singles,otf.multiples,otf.alternatives,otf.ligatures")
 registertracker("otf.positions","otf.marks,otf.kerns,otf.cursive")
 registertracker("otf.actions","otf.replacements,otf.positions")
 registertracker("otf.injections","nodes.injections")
-
 registertracker("*otf.sample","otf.steps,otf.actions,otf.analyzing")
-
-local insert_node_after  = node.insert_after
-local delete_node        = nodes.delete
-local copy_node          = node.copy
-local find_node_tail     = node.tail or node.slide
-local flush_node_list    = node.flush_list
-
-local setmetatableindex  = table.setmetatableindex
-
-local zwnj               = 0x200C
-local zwj                = 0x200D
-local wildcard           = "*"
-local default            = "dflt"
-
-local nodecodes          = nodes.nodecodes
-local whatcodes          = nodes.whatcodes
-local glyphcodes         = nodes.glyphcodes
-
-local glyph_code         = nodecodes.glyph
-local glue_code          = nodecodes.glue
-local disc_code          = nodecodes.disc
-local whatsit_code       = nodecodes.whatsit
-
-local dir_code           = whatcodes.dir
-local localpar_code      = whatcodes.localpar
-
-local ligature_code      = glyphcodes.ligature
-
-local privateattribute   = attributes.private
-
--- Something is messed up: we have two mark / ligature indices, one at the injection
--- end and one here ... this is bases in KE's patches but there is something fishy
--- there as I'm pretty sure that for husayni we need some connection (as it's much
--- more complex than an average font) but I need proper examples of all cases, not
--- of only some.
-
-local a_state            = privateattribute('state')
-local a_markbase         = privateattribute('markbase')
-local a_markmark         = privateattribute('markmark')
-local a_markdone         = privateattribute('markdone') -- assigned at the injection end
-local a_cursbase         = privateattribute('cursbase')
-local a_curscurs         = privateattribute('curscurs')
-local a_cursdone         = privateattribute('cursdone')
-local a_kernpair         = privateattribute('kernpair')
-local a_ligacomp         = privateattribute('ligacomp') -- assigned here (ideally it should be combined)
-
-local injections         = nodes.injections
-local setmark            = injections.setmark
-local setcursive         = injections.setcursive
-local setkern            = injections.setkern
-local setpair            = injections.setpair
-
-local markonce           = true
-local cursonce           = true
-local kernonce           = true
-
-local fonthashes         = fonts.hashes
-local fontdata           = fonthashes.identifiers
-
-local otffeatures        = fonts.constructors.newfeatures("otf")
-local registerotffeature = otffeatures.register
-
-local onetimemessage     = fonts.loggers.onetimemessage
-
-otf.defaultnodealternate = "none" -- first last
-
--- we share some vars here, after all, we have no nested lookups and less code
-
-local tfmdata             = false
-local characters          = false
-local descriptions        = false
-local resources           = false
-local marks               = false
-local currentfont         = false
-local lookuptable         = false
-local anchorlookups       = false
-local lookuptypes         = false
-local handlers            = { }
-local rlmode              = 0
-local featurevalue        = false
-
--- head is always a whatsit so we can safely assume that head is not changed
-
--- we use this for special testing and documentation
-
-local checkstep       = (nodes and nodes.tracers and nodes.tracers.steppers.check)    or function() end
-local registerstep    = (nodes and nodes.tracers and nodes.tracers.steppers.register) or function() end
-local registermessage = (nodes and nodes.tracers and nodes.tracers.steppers.message)  or function() end
-
+local insert_node_after=node.insert_after
+local delete_node=nodes.delete
+local copy_node=node.copy
+local find_node_tail=node.tail or node.slide
+local flush_node_list=node.flush_list
+local endofmath=nodes.endofmath
+local setmetatableindex=table.setmetatableindex
+local zwnj=0x200C
+local zwj=0x200D
+local wildcard="*"
+local default="dflt"
+local nodecodes=nodes.nodecodes
+local whatcodes=nodes.whatcodes
+local glyphcodes=nodes.glyphcodes
+local glyph_code=nodecodes.glyph
+local glue_code=nodecodes.glue
+local disc_code=nodecodes.disc
+local whatsit_code=nodecodes.whatsit
+local math_code=nodecodes.math
+local dir_code=whatcodes.dir
+local localpar_code=whatcodes.localpar
+local ligature_code=glyphcodes.ligature
+local privateattribute=attributes.private
+local a_state=privateattribute('state')
+local a_markbase=privateattribute('markbase')
+local a_markmark=privateattribute('markmark')
+local a_markdone=privateattribute('markdone') 
+local a_cursbase=privateattribute('cursbase')
+local a_curscurs=privateattribute('curscurs')
+local a_cursdone=privateattribute('cursdone')
+local a_kernpair=privateattribute('kernpair')
+local a_ligacomp=privateattribute('ligacomp') 
+local injections=nodes.injections
+local setmark=injections.setmark
+local setcursive=injections.setcursive
+local setkern=injections.setkern
+local setpair=injections.setpair
+local markonce=true
+local cursonce=true
+local kernonce=true
+local fonthashes=fonts.hashes
+local fontdata=fonthashes.identifiers
+local otffeatures=fonts.constructors.newfeatures("otf")
+local registerotffeature=otffeatures.register
+local onetimemessage=fonts.loggers.onetimemessage
+otf.defaultnodealternate="none"
+local tfmdata=false
+local characters=false
+local descriptions=false
+local resources=false
+local marks=false
+local currentfont=false
+local lookuptable=false
+local anchorlookups=false
+local lookuptypes=false
+local handlers={}
+local rlmode=0
+local featurevalue=false
+local checkstep=(nodes and nodes.tracers and nodes.tracers.steppers.check)  or function() end
+local registerstep=(nodes and nodes.tracers and nodes.tracers.steppers.register) or function() end
+local registermessage=(nodes and nodes.tracers and nodes.tracers.steppers.message) or function() end
 local function logprocess(...)
-    if trace_steps then
-        registermessage(...)
-    end
-    report_direct(...)
+  if trace_steps then
+    registermessage(...)
+  end
+  report_direct(...)
 end
-
 local function logwarning(...)
-    report_direct(...)
+  report_direct(...)
 end
-
 local function gref(n)
-    if type(n) == "number" then
-        local description = descriptions[n]
-        local name = description and description.name
-        if name then
-            return format("U+%05X (%s)",n,name)
-        else
-            return format("U+%05X",n)
-        end
-    elseif not n then
-        return "<error in tracing>"
+  if type(n)=="number" then
+    local description=descriptions[n]
+    local name=description and description.name
+    if name then
+      return format("U+%05X (%s)",n,name)
     else
-        local num, nam = { }, { }
-        for i=1,#n do
-            local ni = n[i]
-            if tonumber(ni) then -- later we will start at 2
-                local di = descriptions[ni]
-                num[i] = format("U+%05X",ni)
-                nam[i] = di and di.name or "?"
-            end
-        end
-        return format("%s (%s)",concat(num," "), concat(nam," "))
-    end
+      return format("U+%05X",n)
+    end
+  elseif not n then
+    return "<error in tracing>"
+  else
+    local num,nam={},{}
+    for i=1,#n do
+      local ni=n[i]
+      if tonumber(ni) then 
+        local di=descriptions[ni]
+        num[i]=format("U+%05X",ni)
+        nam[i]=di and di.name or "?"
+      end
+    end
+    return format("%s (%s)",concat(num," "),concat(nam," "))
+  end
 end
-
 local function cref(kind,chainname,chainlookupname,lookupname,index)
-    if index then
-        return format("feature %s, chain %s, sub %s, lookup %s, index %s",kind,chainname,chainlookupname,lookupname,index)
-    elseif lookupname then
-        return format("feature %s, chain %s, sub %s, lookup %s",kind,chainname or "?",chainlookupname or "?",lookupname)
-    elseif chainlookupname then
-        return format("feature %s, chain %s, sub %s",kind,chainname or "?",chainlookupname)
-    elseif chainname then
-        return format("feature %s, chain %s",kind,chainname)
-    else
-        return format("feature %s",kind)
-    end
+  if index then
+    return format("feature %s, chain %s, sub %s, lookup %s, index %s",kind,chainname,chainlookupname,lookupname,index)
+  elseif lookupname then
+    return format("feature %s, chain %s, sub %s, lookup %s",kind,chainname or "?",chainlookupname or "?",lookupname)
+  elseif chainlookupname then
+    return format("feature %s, chain %s, sub %s",kind,chainname or "?",chainlookupname)
+  elseif chainname then
+    return format("feature %s, chain %s",kind,chainname)
+  else
+    return format("feature %s",kind)
+  end
 end
-
 local function pref(kind,lookupname)
-    return format("feature %s, lookup %s",kind,lookupname)
-end
-
--- We can assume that languages that use marks are not hyphenated. We can also assume
--- that at most one discretionary is present.
-
--- We do need components in funny kerning mode but maybe I can better reconstruct then
--- as we do have the font components info available; removing components makes the
--- previous code much simpler. Also, later on copying and freeing becomes easier.
--- However, for arabic we need to keep them around for the sake of mark placement
--- and indices.
-
-local function copy_glyph(g) -- next and prev are untouched !
-    local components = g.components
-    if components then
-        g.components = nil
-        local n = copy_node(g)
-        g.components = components
-        return n
-    else
-        return copy_node(g)
-    end
+  return format("feature %s, lookup %s",kind,lookupname)
+end
+local function copy_glyph(g) 
+  local components=g.components
+  if components then
+    g.components=nil
+    local n=copy_node(g)
+    g.components=components
+    return n
+  else
+    return copy_node(g)
+  end
 end
-
--- start is a mark and we need to keep that one
-
--- local function markstoligature(kind,lookupname,start,stop,char)
---     -- [start]..[stop]
---     local keep = start
---     local prev = start.prev
---     local next = stop.next
---     local base = copy_glyph(start)
---     local current, start = insert_node_after(start,start,base)
---     -- [current][start]..[stop]
---     current.next = next
---     if next then
---         next.prev = current
---     end
---     start.prev = nil
---     stop.next = nil
---     current.char = char
---     current.subtype = ligature_code
---     current.components = start
---     return keep
--- end
-
 local function markstoligature(kind,lookupname,start,stop,char)
-    if start == stop and start.char == char then
-        return start
-    else
-        local prev = start.prev
-        local next = stop.next
-        start.prev = nil
-        stop.next = nil
-        local base = copy_glyph(start)
-        base.char = char
-        base.subtype = ligature_code
-        base.components = start
-        if prev then
-            prev.next = base
-        end
-        if next then
-            next.prev = base
-        end
-        base.next = next
-        base.prev = prev
-        return base
-    end
-end
-
--- The next code is somewhat complicated by the fact that some fonts can have ligatures made
--- from ligatures that themselves have marks. This was identified by Kai in for instance
--- arabtype:  KAF LAM SHADDA ALEF FATHA (0x0643 0x0644 0x0651 0x0627 0x064E). This becomes
--- KAF LAM-ALEF with a SHADDA on the first and a FATHA op de second component. In a next
--- iteration this becomes a KAF-LAM-ALEF with a SHADDA on the second and a FATHA on the
--- third component.
-
-local function getcomponentindex(start)
-    if start.id ~= glyph_code then
-        return 0
-    elseif start.subtype == ligature_code then
-        local i = 0
-        local components = start.components
-        while components do
-            i = i + getcomponentindex(components)
-            components = components.next
-        end
-        return i
-    elseif not marks[start.char] then
-        return 1
-    else
-        return 0
-    end
-end
-
-local function toligature(kind,lookupname,start,stop,char,markflag,discfound) -- brr head
-    if start == stop and start.char == char then
-        start.char = char
-        return start
-    end
-    local prev = start.prev
-    local next = stop.next
-    start.prev = nil
-    stop.next = nil
-    local base = copy_glyph(start)
-    base.char = char
-    base.subtype = ligature_code
-    base.components = start -- start can have components
+  if start==stop and start.char==char then
+    return start
+  else
+    local prev=start.prev
+    local next=stop.next
+    start.prev=nil
+    stop.next=nil
+    local base=copy_glyph(start)
+    base.char=char
+    base.subtype=ligature_code
+    base.components=start
     if prev then
-        prev.next = base
+      prev.next=base
     end
     if next then
-        next.prev = base
-    end
-    base.next = next
-    base.prev = prev
-    if not discfound then
-        local deletemarks = markflag ~= "mark"
-        local components = start
-        local baseindex = 0
-        local componentindex = 0
-        local head = base
-        local current = base
-        while start do
-            local char = start.char
-            if not marks[char] then
-                baseindex = baseindex + componentindex
-                componentindex = getcomponentindex(start)
-            elseif not deletemarks then -- quite fishy
-                start[a_ligacomp] = baseindex + (start[a_ligacomp] or componentindex)
-                if trace_marks then
-                    logwarning("%s: keep mark %s, gets index %s",pref(kind,lookupname),gref(char),start[a_ligacomp])
-                end
-                head, current = insert_node_after(head,current,copy_node(start)) -- unlikely that mark has components
-            end
-            start = start.next
-        end
-        local start = components
-        while start and start.id == glyph_code do -- hm, is id test needed ?
-            local char = start.char
-            if marks[char] then
-                start[a_ligacomp] = baseindex + (start[a_ligacomp] or componentindex)
-                if trace_marks then
-                    logwarning("%s: keep mark %s, gets index %s",pref(kind,lookupname),gref(char),start[a_ligacomp])
-                end
-            else
-                break
-            end
-            start = start.next
-        end
+      next.prev=base
     end
+    base.next=next
+    base.prev=prev
     return base
+  end
+end
+local function getcomponentindex(start)
+  if start.id~=glyph_code then
+    return 0
+  elseif start.subtype==ligature_code then
+    local i=0
+    local components=start.components
+    while components do
+      i=i+getcomponentindex(components)
+      components=components.next
+    end
+    return i
+  elseif not marks[start.char] then
+    return 1
+  else
+    return 0
+  end
+end
+local function toligature(kind,lookupname,start,stop,char,markflag,discfound) 
+  if start==stop and start.char==char then
+    start.char=char
+    return start
+  end
+  local prev=start.prev
+  local next=stop.next
+  start.prev=nil
+  stop.next=nil
+  local base=copy_glyph(start)
+  base.char=char
+  base.subtype=ligature_code
+  base.components=start 
+  if prev then
+    prev.next=base
+  end
+  if next then
+    next.prev=base
+  end
+  base.next=next
+  base.prev=prev
+  if not discfound then
+    local deletemarks=markflag~="mark"
+    local components=start
+    local baseindex=0
+    local componentindex=0
+    local head=base
+    local current=base
+    while start do
+      local char=start.char
+      if not marks[char] then
+        baseindex=baseindex+componentindex
+        componentindex=getcomponentindex(start)
+      elseif not deletemarks then 
+        start[a_ligacomp]=baseindex+(start[a_ligacomp] or componentindex)
+        if trace_marks then
+          logwarning("%s: keep mark %s, gets index %s",pref(kind,lookupname),gref(char),start[a_ligacomp])
+        end
+        head,current=insert_node_after(head,current,copy_node(start)) 
+      end
+      start=start.next
+    end
+    local start=components
+    while start and start.id==glyph_code do 
+      local char=start.char
+      if marks[char] then
+        start[a_ligacomp]=baseindex+(start[a_ligacomp] or componentindex)
+        if trace_marks then
+          logwarning("%s: keep mark %s, gets index %s",pref(kind,lookupname),gref(char),start[a_ligacomp])
+        end
+      else
+        break
+      end
+      start=start.next
+    end
+  end
+  return base
 end
-
 function handlers.gsub_single(head,start,kind,lookupname,replacement)
-    if trace_singles then
-        logprocess("%s: replacing %s by single %s",pref(kind,lookupname),gref(start.char),gref(replacement))
-    end
-    start.char = replacement
-    return head, start, true
+  if trace_singles then
+    logprocess("%s: replacing %s by single %s",pref(kind,lookupname),gref(start.char),gref(replacement))
+  end
+  start.char=replacement
+  return head,start,true
 end
-
 local function get_alternative_glyph(start,alternatives,value)
-    -- needs checking: (global value, brrr)
-    local choice = nil
-    local n      = #alternatives
-    local char   = start.char
-    --
-    if value == "random" then
-        local r = random(1,n)
-        value, choice = format("random, choice %s",r), alternatives[r]
-    elseif value == "first" then
-        value, choice = format("first, choice %s",1), alternatives[1]
-    elseif value == "last" then
-        value, choice = format("last, choice %s",n), alternatives[n]
-    else
-        value = tonumber(value)
-        if type(value) ~= "number" then
-            value, choice = "default, choice 1", alternatives[1]
-        elseif value > n then
-            local defaultalt = otf.defaultnodealternate
-            if defaultalt == "first" then
-                value, choice = format("no %s variants, taking %s",value,n), alternatives[n]
-            elseif defaultalt == "last" then
-                value, choice = format("no %s variants, taking %s",value,1), alternatives[1]
-            else
-                value, choice = format("no %s variants, ignoring",value), false
-            end
-        elseif value == 0 then
-            value, choice = format("choice %s (no change)",value), char
-        elseif value < 1 then
-            value, choice = format("no %s variants, taking %s",value,1), alternatives[1]
-        else
-            value, choice = format("choice %s",value), alternatives[value]
-        end
-    end
-    return choice
-end
-
-local function multiple_glyphs(head,start,multiple) -- marks ?
-    local nofmultiples = #multiple
-    if nofmultiples > 0 then
-        start.char = multiple[1]
-        if nofmultiples > 1 then
-            local sn = start.next
-            for k=2,nofmultiples do -- todo: use insert_node
-                local n = copy_node(start) -- ignore components
-                n.char = multiple[k]
-                n.next = sn
-                n.prev = start
-                if sn then
-                    sn.prev = n
-                end
-                start.next = n
-                start = n
-            end
-        end
-        return head, start, true
+  local choice=nil
+  local n=#alternatives
+  local char=start.char
+  if value=="random" then
+    local r=random(1,n)
+    value,choice=format("random, choice %s",r),alternatives[r]
+  elseif value=="first" then
+    value,choice=format("first, choice %s",1),alternatives[1]
+  elseif value=="last" then
+    value,choice=format("last, choice %s",n),alternatives[n]
+  else
+    value=tonumber(value)
+    if type(value)~="number" then
+      value,choice="default, choice 1",alternatives[1]
+    elseif value>n then
+      local defaultalt=otf.defaultnodealternate
+      if defaultalt=="first" then
+        value,choice=format("no %s variants, taking %s",value,n),alternatives[n]
+      elseif defaultalt=="last" then
+        value,choice=format("no %s variants, taking %s",value,1),alternatives[1]
+      else
+        value,choice=format("no %s variants, ignoring",value),false
+      end
+    elseif value==0 then
+      value,choice=format("choice %s (no change)",value),char
+    elseif value<1 then
+      value,choice=format("no %s variants, taking %s",value,1),alternatives[1]
     else
-        if trace_multiples then
-            logprocess("no multiple for %s",gref(start.char))
-        end
-        return head, start, false
+      value,choice=format("choice %s",value),alternatives[value]
+    end
+  end
+  return choice
+end
+local function multiple_glyphs(head,start,multiple) 
+  local nofmultiples=#multiple
+  if nofmultiples>0 then
+    start.char=multiple[1]
+    if nofmultiples>1 then
+      local sn=start.next
+      for k=2,nofmultiples do 
+        local n=copy_node(start) 
+        n.char=multiple[k]
+        n.next=sn
+        n.prev=start
+        if sn then
+          sn.prev=n
+        end
+        start.next=n
+        start=n
+      end
+    end
+    return head,start,true
+  else
+    if trace_multiples then
+      logprocess("no multiple for %s",gref(start.char))
     end
+    return head,start,false
+  end
 end
-
 function handlers.gsub_alternate(head,start,kind,lookupname,alternative,sequence)
-    local value  = featurevalue == true and tfmdata.shared.features[kind] or featurevalue
-    local choice = get_alternative_glyph(start,alternative,value)
-    if choice then
-        if trace_alternatives then
-            logprocess("%s: replacing %s by alternative %s (%s)",pref(kind,lookupname),gref(start.char),gref(choice),choice)
-        end
-        start.char = choice
-    else
-        if trace_alternatives then
-            logwarning("%s: no variant %s for %s",pref(kind,lookupname),tostring(value),gref(start.char))
-        end
+  local value=featurevalue==true and tfmdata.shared.features[kind] or featurevalue
+  local choice=get_alternative_glyph(start,alternative,value)
+  if choice then
+    if trace_alternatives then
+      logprocess("%s: replacing %s by alternative %s (%s)",pref(kind,lookupname),gref(start.char),gref(choice),choice)
+    end
+    start.char=choice
+  else
+    if trace_alternatives then
+      logwarning("%s: no variant %s for %s",pref(kind,lookupname),tostring(value),gref(start.char))
     end
-    return head, start, true
+  end
+  return head,start,true
 end
-
 function handlers.gsub_multiple(head,start,kind,lookupname,multiple)
-    if trace_multiples then
-        logprocess("%s: replacing %s by multiple %s",pref(kind,lookupname),gref(start.char),gref(multiple))
-    end
-    return multiple_glyphs(head,start,multiple)
+  if trace_multiples then
+    logprocess("%s: replacing %s by multiple %s",pref(kind,lookupname),gref(start.char),gref(multiple))
+  end
+  return multiple_glyphs(head,start,multiple)
 end
-
 function handlers.gsub_ligature(head,start,kind,lookupname,ligature,sequence)
-    local s, stop, discfound = start.next, nil, false
-    local startchar = start.char
-    if marks[startchar] then
-        while s do
-            local id = s.id
-            if id == glyph_code and s.font == currentfont and s.subtype<256 then
-                local lg = ligature[s.char]
-                if lg then
-                    stop = s
-                    ligature = lg
-                    s = s.next
-                else
-                    break
-                end
-            else
-                break
-            end
-        end
-        if stop then
-            local lig = ligature.ligature
-            if lig then
-                if trace_ligatures then
-                    local stopchar = stop.char
-                    start = markstoligature(kind,lookupname,start,stop,lig)
-                    logprocess("%s: replacing %s upto %s by ligature %s",pref(kind,lookupname),gref(startchar),gref(stopchar),gref(start.char))
-                else
-                    start = markstoligature(kind,lookupname,start,stop,lig)
-                end
-                return head, start, true
-            else
-                -- ok, goto next lookup
-            end
-        end
-    else
-        local skipmark = sequence.flags[1]
-        while s do
-            local id = s.id
-            if id == glyph_code and s.subtype<256 then
-                if s.font == currentfont then
-                    local char = s.char
-                    if skipmark and marks[char] then
-                        s = s.next
-                    else
-                        local lg = ligature[char]
-                        if lg then
-                            stop = s
-                            ligature = lg
-                            s = s.next
-                        else
-                            break
-                        end
-                    end
-                else
-                    break
-                end
-            elseif id == disc_code then
-                discfound = true
-                s = s.next
-            else
-                break
-            end
-        end
-        if stop then
-            local lig = ligature.ligature
-            if lig then
-                if trace_ligatures then
-                    local stopchar = stop.char
-                    start = toligature(kind,lookupname,start,stop,lig,skipmark,discfound)
-                    logprocess("%s: replacing %s upto %s by ligature %s",pref(kind,lookupname),gref(startchar),gref(stopchar),gref(start.char))
-                else
-                    start = toligature(kind,lookupname,start,stop,lig,skipmark,discfound)
-                end
-                return head, start, true
+  local s,stop,discfound=start.next,nil,false
+  local startchar=start.char
+  if marks[startchar] then
+    while s do
+      local id=s.id
+      if id==glyph_code and s.font==currentfont and s.subtype<256 then
+        local lg=ligature[s.char]
+        if lg then
+          stop=s
+          ligature=lg
+          s=s.next
+        else
+          break
+        end
+      else
+        break
+      end
+    end
+    if stop then
+      local lig=ligature.ligature
+      if lig then
+        if trace_ligatures then
+          local stopchar=stop.char
+          start=markstoligature(kind,lookupname,start,stop,lig)
+          logprocess("%s: replacing %s upto %s by ligature %s",pref(kind,lookupname),gref(startchar),gref(stopchar),gref(start.char))
+        else
+          start=markstoligature(kind,lookupname,start,stop,lig)
+        end
+        return head,start,true
+      else
+      end
+    end
+  else
+    local skipmark=sequence.flags[1]
+    while s do
+      local id=s.id
+      if id==glyph_code and s.subtype<256 then
+        if s.font==currentfont then
+          local char=s.char
+          if skipmark and marks[char] then
+            s=s.next
+          else
+            local lg=ligature[char]
+            if lg then
+              stop=s
+              ligature=lg
+              s=s.next
             else
-                -- ok, goto next lookup
+              break
             end
+          end
+        else
+          break
+        end
+      elseif id==disc_code then
+        discfound=true
+        s=s.next
+      else
+        break
+      end
+    end
+    if stop then
+      local lig=ligature.ligature
+      if lig then
+        if trace_ligatures then
+          local stopchar=stop.char
+          start=toligature(kind,lookupname,start,stop,lig,skipmark,discfound)
+          logprocess("%s: replacing %s upto %s by ligature %s",pref(kind,lookupname),gref(startchar),gref(stopchar),gref(start.char))
+        else
+          start=toligature(kind,lookupname,start,stop,lig,skipmark,discfound)
         end
+        return head,start,true
+      else
+      end
     end
-    return head, start, false
+  end
+  return head,start,false
 end
-
---[[ldx--
-<p>We get hits on a mark, but we're not sure if the it has to be applied so
-we need to explicitly test for basechar, baselig and basemark entries.</p>
---ldx]]--
-
 function handlers.gpos_mark2base(head,start,kind,lookupname,markanchors,sequence)
-    local markchar = start.char
-    if marks[markchar] then
-        local base = start.prev -- [glyph] [start=mark]
-        if base and base.id == glyph_code and base.font == currentfont and base.subtype<256 then
-            local basechar = base.char
-            if marks[basechar] then
-                while true do
-                    base = base.prev
-                    if base and base.id == glyph_code  and base.font == currentfont and base.subtype<256 then
-                        basechar = base.char
-                        if not marks[basechar] then
-                            break
-                        end
-                    else
-                        if trace_bugs then
-                            logwarning("%s: no base for mark %s",pref(kind,lookupname),gref(markchar))
-                        end
-                        return head, start, false
-                    end
-                end
-            end
-            local baseanchors = descriptions[basechar]
-            if baseanchors then
-                baseanchors = baseanchors.anchors
+  local markchar=start.char
+  if marks[markchar] then
+    local base=start.prev 
+    if base and base.id==glyph_code and base.font==currentfont and base.subtype<256 then
+      local basechar=base.char
+      if marks[basechar] then
+        while true do
+          base=base.prev
+          if base and base.id==glyph_code and base.font==currentfont and base.subtype<256 then
+            basechar=base.char
+            if not marks[basechar] then
+              break
             end
-            if baseanchors then
-                local baseanchors = baseanchors['basechar']
-                if baseanchors then
-                    local al = anchorlookups[lookupname]
-                    for anchor,ba in next, baseanchors do
-                        if al[anchor] then
-                            local ma = markanchors[anchor]
-                            if ma then
-                                local dx, dy, bound = setmark(start,base,tfmdata.parameters.factor,rlmode,ba,ma)
-                                if trace_marks then
-                                    logprocess("%s, anchor %s, bound %s: anchoring mark %s to basechar %s => (%s,%s)",
-                                        pref(kind,lookupname),anchor,bound,gref(markchar),gref(basechar),dx,dy)
-                                end
-                                return head, start, true
-                            end
-                        end
-                    end
-                    if trace_bugs then
-                        logwarning("%s, no matching anchors for mark %s and base %s",pref(kind,lookupname),gref(markchar),gref(basechar))
-                    end
+          else
+            if trace_bugs then
+              logwarning("%s: no base for mark %s",pref(kind,lookupname),gref(markchar))
+            end
+            return head,start,false
+          end
+        end
+      end
+      local baseanchors=descriptions[basechar]
+      if baseanchors then
+        baseanchors=baseanchors.anchors
+      end
+      if baseanchors then
+        local baseanchors=baseanchors['basechar']
+        if baseanchors then
+          local al=anchorlookups[lookupname]
+          for anchor,ba in next,baseanchors do
+            if al[anchor] then
+              local ma=markanchors[anchor]
+              if ma then
+                local dx,dy,bound=setmark(start,base,tfmdata.parameters.factor,rlmode,ba,ma)
+                if trace_marks then
+                  logprocess("%s, anchor %s, bound %s: anchoring mark %s to basechar %s => (%s,%s)",
+                    pref(kind,lookupname),anchor,bound,gref(markchar),gref(basechar),dx,dy)
                 end
-            else -- if trace_bugs then
-            --  logwarning("%s: char %s is missing in font",pref(kind,lookupname),gref(basechar))
-                onetimemessage(currentfont,basechar,"no base anchors",report_fonts)
+                return head,start,true
+              end
             end
-        elseif trace_bugs then
-            logwarning("%s: prev node is no char",pref(kind,lookupname))
+          end
+          if trace_bugs then
+            logwarning("%s, no matching anchors for mark %s and base %s",pref(kind,lookupname),gref(markchar),gref(basechar))
+          end
         end
+      else
+        onetimemessage(currentfont,basechar,"no base anchors",report_fonts)
+      end
     elseif trace_bugs then
-        logwarning("%s: mark %s is no mark",pref(kind,lookupname),gref(markchar))
+      logwarning("%s: prev node is no char",pref(kind,lookupname))
     end
-    return head, start, false
+  elseif trace_bugs then
+    logwarning("%s: mark %s is no mark",pref(kind,lookupname),gref(markchar))
+  end
+  return head,start,false
 end
-
 function handlers.gpos_mark2ligature(head,start,kind,lookupname,markanchors,sequence)
-    -- check chainpos variant
-    local markchar = start.char
-    if marks[markchar] then
-        local base = start.prev -- [glyph] [optional marks] [start=mark]
-        if base and base.id == glyph_code and base.font == currentfont and base.subtype<256 then
-            local basechar = base.char
-            if marks[basechar] then
-                while true do
-                    base = base.prev
-                    if base and base.id == glyph_code and base.font == currentfont and base.subtype<256 then
-                        basechar = base.char
-                        if not marks[basechar] then
-                            break
-                        end
-                    else
-                        if trace_bugs then
-                            logwarning("%s: no base for mark %s",pref(kind,lookupname),gref(markchar))
-                        end
-                        return head, start, false
-                    end
-                end
+  local markchar=start.char
+  if marks[markchar] then
+    local base=start.prev 
+    if base and base.id==glyph_code and base.font==currentfont and base.subtype<256 then
+      local basechar=base.char
+      if marks[basechar] then
+        while true do
+          base=base.prev
+          if base and base.id==glyph_code and base.font==currentfont and base.subtype<256 then
+            basechar=base.char
+            if not marks[basechar] then
+              break
             end
-            local index = start[a_ligacomp]
-            local baseanchors = descriptions[basechar]
-            if baseanchors then
-                baseanchors = baseanchors.anchors
-                if baseanchors then
-                   local baseanchors = baseanchors['baselig']
-                   if baseanchors then
-                        local al = anchorlookups[lookupname]
-                        for anchor,ba in next, baseanchors do
-                            if al[anchor] then
-                                local ma = markanchors[anchor]
-                                if ma then
-                                    ba = ba[index]
-                                    if ba then
-                                        local dx, dy, bound = setmark(start,base,tfmdata.parameters.factor,rlmode,ba,ma) -- index
-                                        if trace_marks then
-                                            logprocess("%s, anchor %s, index %s, bound %s: anchoring mark %s to baselig %s at index %s => (%s,%s)",
-                                                pref(kind,lookupname),anchor,index,bound,gref(markchar),gref(basechar),index,dx,dy)
-                                        end
-                                        return head, start, true
-                                    end
-                                end
-                            end
-                        end
-                        if trace_bugs then
-                            logwarning("%s: no matching anchors for mark %s and baselig %s",pref(kind,lookupname),gref(markchar),gref(basechar))
-                        end
-                    end
-                end
-            else -- if trace_bugs then
-            --  logwarning("%s: char %s is missing in font",pref(kind,lookupname),gref(basechar))
-                onetimemessage(currentfont,basechar,"no base anchors",report_fonts)
+          else
+            if trace_bugs then
+              logwarning("%s: no base for mark %s",pref(kind,lookupname),gref(markchar))
+            end
+            return head,start,false
+          end
+        end
+      end
+      local index=start[a_ligacomp]
+      local baseanchors=descriptions[basechar]
+      if baseanchors then
+        baseanchors=baseanchors.anchors
+        if baseanchors then
+          local baseanchors=baseanchors['baselig']
+          if baseanchors then
+            local al=anchorlookups[lookupname]
+            for anchor,ba in next,baseanchors do
+              if al[anchor] then
+                local ma=markanchors[anchor]
+                if ma then
+                  ba=ba[index]
+                  if ba then
+                    local dx,dy,bound=setmark(start,base,tfmdata.parameters.factor,rlmode,ba,ma) 
+                    if trace_marks then
+                      logprocess("%s, anchor %s, index %s, bound %s: anchoring mark %s to baselig %s at index %s => (%s,%s)",
+                        pref(kind,lookupname),anchor,index,bound,gref(markchar),gref(basechar),index,dx,dy)
+                    end
+                    return head,start,true
+                  end
+                end
+              end
             end
-        elseif trace_bugs then
-            logwarning("%s: prev node is no char",pref(kind,lookupname))
+            if trace_bugs then
+              logwarning("%s: no matching anchors for mark %s and baselig %s",pref(kind,lookupname),gref(markchar),gref(basechar))
+            end
+          end
         end
+      else
+        onetimemessage(currentfont,basechar,"no base anchors",report_fonts)
+      end
     elseif trace_bugs then
-        logwarning("%s: mark %s is no mark",pref(kind,lookupname),gref(markchar))
+      logwarning("%s: prev node is no char",pref(kind,lookupname))
     end
-    return head, start, false
+  elseif trace_bugs then
+    logwarning("%s: mark %s is no mark",pref(kind,lookupname),gref(markchar))
+  end
+  return head,start,false
 end
-
 function handlers.gpos_mark2mark(head,start,kind,lookupname,markanchors,sequence)
-    local markchar = start.char
-    if marks[markchar] then
-        local base = start.prev -- [glyph] [basemark] [start=mark]
-        local slc = start[a_ligacomp]
-        if slc then -- a rather messy loop ... needs checking with husayni
-            while base do
-                local blc = base[a_ligacomp]
-                if blc and blc ~= slc then
-                    base = base.prev
-                else
-                    break
-                end
+  local markchar=start.char
+  if marks[markchar] then
+    local base=start.prev 
+    local slc=start[a_ligacomp]
+    if slc then 
+      while base do
+        local blc=base[a_ligacomp]
+        if blc and blc~=slc then
+          base=base.prev
+        else
+          break
+        end
+      end
+    end
+    if base and base.id==glyph_code and base.font==currentfont and base.subtype<256 then 
+      local basechar=base.char
+      local baseanchors=descriptions[basechar]
+      if baseanchors then
+        baseanchors=baseanchors.anchors
+        if baseanchors then
+          baseanchors=baseanchors['basemark']
+          if baseanchors then
+            local al=anchorlookups[lookupname]
+            for anchor,ba in next,baseanchors do
+              if al[anchor] then
+                local ma=markanchors[anchor]
+                if ma then
+                  local dx,dy,bound=setmark(start,base,tfmdata.parameters.factor,rlmode,ba,ma)
+                  if trace_marks then
+                    logprocess("%s, anchor %s, bound %s: anchoring mark %s to basemark %s => (%s,%s)",
+                      pref(kind,lookupname),anchor,bound,gref(markchar),gref(basechar),dx,dy)
+                  end
+                  return head,start,true
+                end
+              end
             end
-        end
-        if base and base.id == glyph_code and base.font == currentfont and base.subtype<256 then -- subtype test can go
-            local basechar = base.char
-            local baseanchors = descriptions[basechar]
-            if baseanchors then
-                baseanchors = baseanchors.anchors
-                if baseanchors then
-                    baseanchors = baseanchors['basemark']
-                    if baseanchors then
-                        local al = anchorlookups[lookupname]
-                        for anchor,ba in next, baseanchors do
-                            if al[anchor] then
-                                local ma = markanchors[anchor]
-                                if ma then
-                                    local dx, dy, bound = setmark(start,base,tfmdata.parameters.factor,rlmode,ba,ma)
-                                    if trace_marks then
-                                        logprocess("%s, anchor %s, bound %s: anchoring mark %s to basemark %s => (%s,%s)",
-                                            pref(kind,lookupname),anchor,bound,gref(markchar),gref(basechar),dx,dy)
-                                    end
-                                    return head, start, true
-                                end
-                            end
-                        end
-                        if trace_bugs then
-                            logwarning("%s: no matching anchors for mark %s and basemark %s",pref(kind,lookupname),gref(markchar),gref(basechar))
-                        end
-                    end
-                end
-            else -- if trace_bugs then
-            --  logwarning("%s: char %s is missing in font",pref(kind,lookupname),gref(basechar))
-                onetimemessage(currentfont,basechar,"no base anchors",report_fonts)
+            if trace_bugs then
+              logwarning("%s: no matching anchors for mark %s and basemark %s",pref(kind,lookupname),gref(markchar),gref(basechar))
             end
-        elseif trace_bugs then
-            logwarning("%s: prev node is no mark",pref(kind,lookupname))
+          end
         end
+      else
+        onetimemessage(currentfont,basechar,"no base anchors",report_fonts)
+      end
     elseif trace_bugs then
-        logwarning("%s: mark %s is no mark",pref(kind,lookupname),gref(markchar))
-    end
-    return head, start, false
-end
-
-function handlers.gpos_cursive(head,start,kind,lookupname,exitanchors,sequence) -- to be checked
-    local alreadydone = cursonce and start[a_cursbase]
-    if not alreadydone then
-        local done = false
-        local startchar = start.char
-        if marks[startchar] then
-            if trace_cursive then
-                logprocess("%s: ignoring cursive for mark %s",pref(kind,lookupname),gref(startchar))
-            end
-        else
-            local nxt = start.next
-            while not done and nxt and nxt.id == glyph_code and nxt.font == currentfont and nxt.subtype<256 do
-                local nextchar = nxt.char
-                if marks[nextchar] then
-                    -- should not happen (maybe warning)
-                    nxt = nxt.next
-                else
-                    local entryanchors = descriptions[nextchar]
-                    if entryanchors then
-                        entryanchors = entryanchors.anchors
-                        if entryanchors then
-                            entryanchors = entryanchors['centry']
-                            if entryanchors then
-                                local al = anchorlookups[lookupname]
-                                for anchor, entry in next, entryanchors do
-                                    if al[anchor] then
-                                        local exit = exitanchors[anchor]
-                                        if exit then
-                                            local dx, dy, bound = setcursive(start,nxt,tfmdata.parameters.factor,rlmode,exit,entry,characters[startchar],characters[nextchar])
-                                            if trace_cursive then
-                                                logprocess("%s: moving %s to %s cursive (%s,%s) using anchor %s and bound %s in rlmode %s",pref(kind,lookupname),gref(startchar),gref(nextchar),dx,dy,anchor,bound,rlmode)
-                                            end
-                                            done = true
-                                            break
-                                        end
-                                    end
-                                end
-                            end
-                        end
-                    else -- if trace_bugs then
-                    --  logwarning("%s: char %s is missing in font",pref(kind,lookupname),gref(startchar))
-                        onetimemessage(currentfont,startchar,"no entry anchors",report_fonts)
-                    end
-                    break
-                end
-            end
-        end
-        return head, start, done
+      logwarning("%s: prev node is no mark",pref(kind,lookupname))
+    end
+  elseif trace_bugs then
+    logwarning("%s: mark %s is no mark",pref(kind,lookupname),gref(markchar))
+  end
+  return head,start,false
+end
+function handlers.gpos_cursive(head,start,kind,lookupname,exitanchors,sequence) 
+  local alreadydone=cursonce and start[a_cursbase]
+  if not alreadydone then
+    local done=false
+    local startchar=start.char
+    if marks[startchar] then
+      if trace_cursive then
+        logprocess("%s: ignoring cursive for mark %s",pref(kind,lookupname),gref(startchar))
+      end
     else
-        if trace_cursive and trace_details then
-            logprocess("%s, cursive %s is already done",pref(kind,lookupname),gref(start.char),alreadydone)
-        end
-        return head, start, false
-    end
+      local nxt=start.next
+      while not done and nxt and nxt.id==glyph_code and nxt.font==currentfont and nxt.subtype<256 do
+        local nextchar=nxt.char
+        if marks[nextchar] then
+          nxt=nxt.next
+        else
+          local entryanchors=descriptions[nextchar]
+          if entryanchors then
+            entryanchors=entryanchors.anchors
+            if entryanchors then
+              entryanchors=entryanchors['centry']
+              if entryanchors then
+                local al=anchorlookups[lookupname]
+                for anchor,entry in next,entryanchors do
+                  if al[anchor] then
+                    local exit=exitanchors[anchor]
+                    if exit then
+                      local dx,dy,bound=setcursive(start,nxt,tfmdata.parameters.factor,rlmode,exit,entry,characters[startchar],characters[nextchar])
+                      if trace_cursive then
+                        logprocess("%s: moving %s to %s cursive (%s,%s) using anchor %s and bound %s in rlmode %s",pref(kind,lookupname),gref(startchar),gref(nextchar),dx,dy,anchor,bound,rlmode)
+                      end
+                      done=true
+                      break
+                    end
+                  end
+                end
+              end
+            end
+          else
+            onetimemessage(currentfont,startchar,"no entry anchors",report_fonts)
+          end
+          break
+        end
+      end
+    end
+    return head,start,done
+  else
+    if trace_cursive and trace_details then
+      logprocess("%s, cursive %s is already done",pref(kind,lookupname),gref(start.char),alreadydone)
+    end
+    return head,start,false
+  end
 end
-
 function handlers.gpos_single(head,start,kind,lookupname,kerns,sequence)
-    local startchar = start.char
-    local dx, dy, w, h = setpair(start,tfmdata.parameters.factor,rlmode,sequence.flags[4],kerns,characters[startchar])
-    if trace_kerns then
-        logprocess("%s: shifting single %s by (%s,%s) and correction (%s,%s)",pref(kind,lookupname),gref(startchar),dx,dy,w,h)
-    end
-    return head, start, false
+  local startchar=start.char
+  local dx,dy,w,h=setpair(start,tfmdata.parameters.factor,rlmode,sequence.flags[4],kerns,characters[startchar])
+  if trace_kerns then
+    logprocess("%s: shifting single %s by (%s,%s) and correction (%s,%s)",pref(kind,lookupname),gref(startchar),dx,dy,w,h)
+  end
+  return head,start,false
 end
-
 function handlers.gpos_pair(head,start,kind,lookupname,kerns,sequence)
-    -- todo: kerns in disc nodes: pre, post, replace -> loop over disc too
-    -- todo: kerns in components of ligatures
-    local snext = start.next
-    if not snext then
-        return head, start, false
-    else
-        local prev, done = start, false
-        local factor = tfmdata.parameters.factor
-        local lookuptype = lookuptypes[lookupname]
-        while snext and snext.id == glyph_code and snext.font == currentfont and snext.subtype<256 do
-            local nextchar = snext.char
-            local krn = kerns[nextchar]
-            if not krn and marks[nextchar] then
-                prev = snext
-                snext = snext.next
-            else
-                local krn = kerns[nextchar]
-                if not krn then
-                    -- skip
-                elseif type(krn) == "table" then
-                    if lookuptype == "pair" then -- probably not needed
-                        local a, b = krn[2], krn[3]
-                        if a and #a > 0 then
-                            local startchar = start.char
-                            local x, y, w, h = setpair(start,factor,rlmode,sequence.flags[4],a,characters[startchar])
-                            if trace_kerns then
-                                logprocess("%s: shifting first of pair %s and %s by (%s,%s) and correction (%s,%s)",pref(kind,lookupname),gref(startchar),gref(nextchar),x,y,w,h)
-                            end
-                        end
-                        if b and #b > 0 then
-                            local startchar = start.char
-                            local x, y, w, h = setpair(snext,factor,rlmode,sequence.flags[4],b,characters[nextchar])
-                            if trace_kerns then
-                                logprocess("%s: shifting second of pair %s and %s by (%s,%s) and correction (%s,%s)",pref(kind,lookupname),gref(startchar),gref(nextchar),x,y,w,h)
-                            end
-                        end
-                    else -- wrong ... position has different entries
-                        report_process("%s: check this out (old kern stuff)",pref(kind,lookupname))
-                     -- local a, b = krn[2], krn[6]
-                     -- if a and a ~= 0 then
-                     --     local k = setkern(snext,factor,rlmode,a)
-                     --     if trace_kerns then
-                     --         logprocess("%s: inserting first kern %s between %s and %s",pref(kind,lookupname),k,gref(prev.char),gref(nextchar))
-                     --     end
-                     -- end
-                     -- if b and b ~= 0 then
-                     --     logwarning("%s: ignoring second kern xoff %s",pref(kind,lookupname),b*factor)
-                     -- end
-                    end
-                    done = true
-                elseif krn ~= 0 then
-                    local k = setkern(snext,factor,rlmode,krn)
-                    if trace_kerns then
-                        logprocess("%s: inserting kern %s between %s and %s",pref(kind,lookupname),k,gref(prev.char),gref(nextchar))
-                    end
-                    done = true
-                end
-                break
-            end
-        end
-        return head, start, done
-    end
-end
-
---[[ldx--
-<p>I will implement multiple chain replacements once I run into a font that uses
-it. It's not that complex to handle.</p>
---ldx]]--
-
-local chainmores = { }
-local chainprocs = { }
-
+  local snext=start.next
+  if not snext then
+    return head,start,false
+  else
+    local prev,done=start,false
+    local factor=tfmdata.parameters.factor
+    local lookuptype=lookuptypes[lookupname]
+    while snext and snext.id==glyph_code and snext.font==currentfont and snext.subtype<256 do
+      local nextchar=snext.char
+      local krn=kerns[nextchar]
+      if not krn and marks[nextchar] then
+        prev=snext
+        snext=snext.next
+      else
+        local krn=kerns[nextchar]
+        if not krn then
+        elseif type(krn)=="table" then
+          if lookuptype=="pair" then 
+            local a,b=krn[2],krn[3]
+            if a and #a>0 then
+              local startchar=start.char
+              local x,y,w,h=setpair(start,factor,rlmode,sequence.flags[4],a,characters[startchar])
+              if trace_kerns then
+                logprocess("%s: shifting first of pair %s and %s by (%s,%s) and correction (%s,%s)",pref(kind,lookupname),gref(startchar),gref(nextchar),x,y,w,h)
+              end
+            end
+            if b and #b>0 then
+              local startchar=start.char
+              local x,y,w,h=setpair(snext,factor,rlmode,sequence.flags[4],b,characters[nextchar])
+              if trace_kerns then
+                logprocess("%s: shifting second of pair %s and %s by (%s,%s) and correction (%s,%s)",pref(kind,lookupname),gref(startchar),gref(nextchar),x,y,w,h)
+              end
+            end
+          else 
+            report_process("%s: check this out (old kern stuff)",pref(kind,lookupname))
+          end
+          done=true
+        elseif krn~=0 then
+          local k=setkern(snext,factor,rlmode,krn)
+          if trace_kerns then
+            logprocess("%s: inserting kern %s between %s and %s",pref(kind,lookupname),k,gref(prev.char),gref(nextchar))
+          end
+          done=true
+        end
+        break
+      end
+    end
+    return head,start,done
+  end
+end
+local chainmores={}
+local chainprocs={}
 local function logprocess(...)
-    if trace_steps then
-        registermessage(...)
-    end
-    report_subchain(...)
+  if trace_steps then
+    registermessage(...)
+  end
+  report_subchain(...)
 end
-
-local logwarning = report_subchain
-
+local logwarning=report_subchain
 local function logprocess(...)
-    if trace_steps then
-        registermessage(...)
-    end
-    report_chain(...)
+  if trace_steps then
+    registermessage(...)
+  end
+  report_chain(...)
 end
-
-local logwarning = report_chain
-
--- We could share functions but that would lead to extra function calls with many
--- arguments, redundant tests and confusing messages.
-
+local logwarning=report_chain
 function chainprocs.chainsub(head,start,stop,kind,chainname,currentcontext,lookuphash,lookuplist,chainlookupname)
-    logwarning("%s: a direct call to chainsub cannot happen",cref(kind,chainname,chainlookupname))
-    return head, start, false
+  logwarning("%s: a direct call to chainsub cannot happen",cref(kind,chainname,chainlookupname))
+  return head,start,false
 end
-
 function chainmores.chainsub(head,start,stop,kind,chainname,currentcontext,lookuphash,lookuplist,chainlookupname,n)
-    logprocess("%s: a direct call to chainsub cannot happen",cref(kind,chainname,chainlookupname))
-    return head, start, false
+  logprocess("%s: a direct call to chainsub cannot happen",cref(kind,chainname,chainlookupname))
+  return head,start,false
 end
-
--- The reversesub is a special case, which is why we need to store the replacements
--- in a bit weird way. There is no lookup and the replacement comes from the lookup
--- itself. It is meant mostly for dealing with Urdu.
-
 function chainprocs.reversesub(head,start,stop,kind,chainname,currentcontext,lookuphash,replacements)
-    local char = start.char
-    local replacement = replacements[char]
-    if replacement then
-        if trace_singles then
-            logprocess("%s: single reverse replacement of %s by %s",cref(kind,chainname),gref(char),gref(replacement))
-        end
-        start.char = replacement
-        return head, start, true
-    else
-        return head, start, false
-    end
-end
-
---[[ldx--
-<p>This chain stuff is somewhat tricky since we can have a sequence of actions to be
-applied: single, alternate, multiple or ligature where ligature can be an invalid
-one in the sense that it will replace multiple by one but not neccessary one that
-looks like the combination (i.e. it is the counterpart of multiple then). For
-example, the following is valid:</p>
-
-<typing>
-<line>xxxabcdexxx [single a->A][multiple b->BCD][ligature cde->E] xxxABCDExxx</line>
-</typing>
-
-<p>Therefore we we don't really do the replacement here already unless we have the
-single lookup case. The efficiency of the replacements can be improved by deleting
-as less as needed but that would also make the code even more messy.</p>
---ldx]]--
-
-local function delete_till_stop(start,stop,ignoremarks) -- keeps start
-    local n = 1
-    if start == stop then
-        -- done
-    elseif ignoremarks then
-        repeat -- start x x m x x stop => start m
-            local next = start.next
-            if not marks[next.char] then
-                local components = next.components
-                if components then -- probably not needed
-                    flush_node_list(components)
-                end
-                delete_node(start,next)
-            end
-            n = n + 1
-        until next == stop
-    else -- start x x x stop => start
-        repeat
-            local next = start.next
-            local components = next.components
-            if components then -- probably not needed
-                flush_node_list(components)
-            end
-            delete_node(start,next)
-            n = n + 1
-        until next == stop
-    end
-    return n
+  local char=start.char
+  local replacement=replacements[char]
+  if replacement then
+    if trace_singles then
+      logprocess("%s: single reverse replacement of %s by %s",cref(kind,chainname),gref(char),gref(replacement))
+    end
+    start.char=replacement
+    return head,start,true
+  else
+    return head,start,false
+  end
+end
+local function delete_till_stop(start,stop,ignoremarks) 
+  local n=1
+  if start==stop then
+  elseif ignoremarks then
+    repeat 
+      local next=start.next
+      if not marks[next.char] then
+        local components=next.components
+        if components then 
+          flush_node_list(components)
+        end
+        delete_node(start,next)
+      end
+      n=n+1
+    until next==stop
+  else 
+    repeat
+      local next=start.next
+      local components=next.components
+      if components then 
+        flush_node_list(components)
+      end
+      delete_node(start,next)
+      n=n+1
+    until next==stop
+  end
+  return n
 end
-
---[[ldx--
-<p>Here we replace start by a single variant, First we delete the rest of the
-match.</p>
---ldx]]--
-
 function chainprocs.gsub_single(head,start,stop,kind,chainname,currentcontext,lookuphash,currentlookup,chainlookupname,chainindex)
-    -- todo: marks ?
-    local current = start
-    local subtables = currentlookup.subtables
-    if #subtables > 1 then
-        logwarning("todo: check if we need to loop over the replacements: %s",concat(subtables," "))
-    end
-    while current do
-        if current.id == glyph_code then
-            local currentchar = current.char
-            local lookupname = subtables[1] -- only 1
-            local replacement = lookuphash[lookupname]
-            if not replacement then
-                if trace_bugs then
-                    logwarning("%s: no single hits",cref(kind,chainname,chainlookupname,lookupname,chainindex))
-                end
-            else
-                replacement = replacement[currentchar]
-                if not replacement or replacement == "" then
-                    if trace_bugs then
-                        logwarning("%s: no single for %s",cref(kind,chainname,chainlookupname,lookupname,chainindex),gref(currentchar))
-                    end
-                else
-                    if trace_singles then
-                        logprocess("%s: replacing single %s by %s",cref(kind,chainname,chainlookupname,lookupname,chainindex),gref(currentchar),gref(replacement))
-                    end
-                    current.char = replacement
-                end
-            end
-            return head, start, true
-        elseif current == stop then
-            break
+  local current=start
+  local subtables=currentlookup.subtables
+  if #subtables>1 then
+    logwarning("todo: check if we need to loop over the replacements: %s",concat(subtables," "))
+  end
+  while current do
+    if current.id==glyph_code then
+      local currentchar=current.char
+      local lookupname=subtables[1] 
+      local replacement=lookuphash[lookupname]
+      if not replacement then
+        if trace_bugs then
+          logwarning("%s: no single hits",cref(kind,chainname,chainlookupname,lookupname,chainindex))
+        end
+      else
+        replacement=replacement[currentchar]
+        if not replacement or replacement=="" then
+          if trace_bugs then
+            logwarning("%s: no single for %s",cref(kind,chainname,chainlookupname,lookupname,chainindex),gref(currentchar))
+          end
         else
-            current = current.next
-        end
+          if trace_singles then
+            logprocess("%s: replacing single %s by %s",cref(kind,chainname,chainlookupname,lookupname,chainindex),gref(currentchar),gref(replacement))
+          end
+          current.char=replacement
+        end
+      end
+      return head,start,true
+    elseif current==stop then
+      break
+    else
+      current=current.next
     end
-    return head, start, false
+  end
+  return head,start,false
 end
-
-chainmores.gsub_single = chainprocs.gsub_single
-
---[[ldx--
-<p>Here we replace start by a sequence of new glyphs. First we delete the rest of
-the match.</p>
---ldx]]--
-
+chainmores.gsub_single=chainprocs.gsub_single
 function chainprocs.gsub_multiple(head,start,stop,kind,chainname,currentcontext,lookuphash,currentlookup,chainlookupname)
-    delete_till_stop(start,stop) -- we could pass ignoremarks as #3 ..
-    local startchar = start.char
-    local subtables = currentlookup.subtables
-    local lookupname = subtables[1]
-    local replacements = lookuphash[lookupname]
-    if not replacements then
-        if trace_bugs then
-            logwarning("%s: no multiple hits",cref(kind,chainname,chainlookupname,lookupname))
-        end
+  delete_till_stop(start,stop) 
+  local startchar=start.char
+  local subtables=currentlookup.subtables
+  local lookupname=subtables[1]
+  local replacements=lookuphash[lookupname]
+  if not replacements then
+    if trace_bugs then
+      logwarning("%s: no multiple hits",cref(kind,chainname,chainlookupname,lookupname))
+    end
+  else
+    replacements=replacements[startchar]
+    if not replacements or replacement=="" then
+      if trace_bugs then
+        logwarning("%s: no multiple for %s",cref(kind,chainname,chainlookupname,lookupname),gref(startchar))
+      end
     else
-        replacements = replacements[startchar]
-        if not replacements or replacement == "" then
-            if trace_bugs then
-                logwarning("%s: no multiple for %s",cref(kind,chainname,chainlookupname,lookupname),gref(startchar))
-            end
-        else
-            if trace_multiples then
-                logprocess("%s: replacing %s by multiple characters %s",cref(kind,chainname,chainlookupname,lookupname),gref(startchar),gref(replacements))
-            end
-            return multiple_glyphs(head,start,replacements)
-        end
+      if trace_multiples then
+        logprocess("%s: replacing %s by multiple characters %s",cref(kind,chainname,chainlookupname,lookupname),gref(startchar),gref(replacements))
+      end
+      return multiple_glyphs(head,start,replacements)
     end
-    return head, start, false
+  end
+  return head,start,false
 end
-
-chainmores.gsub_multiple = chainprocs.gsub_multiple
-
---[[ldx--
-<p>Here we replace start by new glyph. First we delete the rest of the match.</p>
---ldx]]--
-
--- char_1 mark_1 -> char_x mark_1 (ignore marks)
--- char_1 mark_1 -> char_x
-
--- to be checked: do we always have just one glyph?
--- we can also have alternates for marks
--- marks come last anyway
--- are there cases where we need to delete the mark
-
+chainmores.gsub_multiple=chainprocs.gsub_multiple
 function chainprocs.gsub_alternate(head,start,stop,kind,chainname,currentcontext,lookuphash,currentlookup,chainlookupname)
-    local current = start
-    local subtables = currentlookup.subtables
-    local value  = featurevalue == true and tfmdata.shared.features[kind] or featurevalue
-    while current do
-        if current.id == glyph_code then -- is this check needed?
-            local currentchar = current.char
-            local lookupname = subtables[1]
-            local alternatives = lookuphash[lookupname]
-            if not alternatives then
-                if trace_bugs then
-                    logwarning("%s: no alternative hit",cref(kind,chainname,chainlookupname,lookupname))
-                end
-            else
-                alternatives = alternatives[currentchar]
-                if alternatives then
-                    local choice = get_alternative_glyph(current,alternatives,value)
-                    if choice then
-                        if trace_alternatives then
-                            logprocess("%s: replacing %s by alternative %s (%s)",cref(kind,chainname,chainlookupname,lookupname),gref(char),gref(choice),choice)
-                        end
-                        start.char = choice
-                    else
-                        if trace_alternatives then
-                            logwarning("%s: no variant %s for %s",cref(kind,chainname,chainlookupname,lookupname),tostring(value),gref(char))
-                        end
-                    end
-                elseif trace_bugs then
-                    logwarning("%s: no alternative for %s",cref(kind,chainname,chainlookupname,lookupname),gref(currentchar))
-                end
-            end
-            return head, start, true
-        elseif current == stop then
-            break
-        else
-            current = current.next
+  local current=start
+  local subtables=currentlookup.subtables
+  local value=featurevalue==true and tfmdata.shared.features[kind] or featurevalue
+  while current do
+    if current.id==glyph_code then 
+      local currentchar=current.char
+      local lookupname=subtables[1]
+      local alternatives=lookuphash[lookupname]
+      if not alternatives then
+        if trace_bugs then
+          logwarning("%s: no alternative hit",cref(kind,chainname,chainlookupname,lookupname))
+        end
+      else
+        alternatives=alternatives[currentchar]
+        if alternatives then
+          local choice=get_alternative_glyph(current,alternatives,value)
+          if choice then
+            if trace_alternatives then
+              logprocess("%s: replacing %s by alternative %s (%s)",cref(kind,chainname,chainlookupname,lookupname),gref(char),gref(choice),choice)
+            end
+            start.char=choice
+          else
+            if trace_alternatives then
+              logwarning("%s: no variant %s for %s",cref(kind,chainname,chainlookupname,lookupname),tostring(value),gref(char))
+            end
+          end
+        elseif trace_bugs then
+          logwarning("%s: no alternative for %s",cref(kind,chainname,chainlookupname,lookupname),gref(currentchar))
         end
+      end
+      return head,start,true
+    elseif current==stop then
+      break
+    else
+      current=current.next
     end
-    return head, start, false
+  end
+  return head,start,false
 end
-
-chainmores.gsub_alternate = chainprocs.gsub_alternate
-
---[[ldx--
-<p>When we replace ligatures we use a helper that handles the marks. I might change
-this function (move code inline and handle the marks by a separate function). We
-assume rather stupid ligatures (no complex disc nodes).</p>
---ldx]]--
-
+chainmores.gsub_alternate=chainprocs.gsub_alternate
 function chainprocs.gsub_ligature(head,start,stop,kind,chainname,currentcontext,lookuphash,currentlookup,chainlookupname,chainindex)
-    local startchar = start.char
-    local subtables = currentlookup.subtables
-    local lookupname = subtables[1]
-    local ligatures = lookuphash[lookupname]
+  local startchar=start.char
+  local subtables=currentlookup.subtables
+  local lookupname=subtables[1]
+  local ligatures=lookuphash[lookupname]
+  if not ligatures then
+    if trace_bugs then
+      logwarning("%s: no ligature hits",cref(kind,chainname,chainlookupname,lookupname,chainindex))
+    end
+  else
+    ligatures=ligatures[startchar]
     if not ligatures then
-        if trace_bugs then
-            logwarning("%s: no ligature hits",cref(kind,chainname,chainlookupname,lookupname,chainindex))
-        end
+      if trace_bugs then
+        logwarning("%s: no ligatures starting with %s",cref(kind,chainname,chainlookupname,lookupname,chainindex),gref(startchar))
+      end
     else
-        ligatures = ligatures[startchar]
-        if not ligatures then
-            if trace_bugs then
-                logwarning("%s: no ligatures starting with %s",cref(kind,chainname,chainlookupname,lookupname,chainindex),gref(startchar))
-            end
+      local s=start.next
+      local discfound=false
+      local last=stop
+      local nofreplacements=0
+      local skipmark=currentlookup.flags[1]
+      while s do
+        local id=s.id
+        if id==disc_code then
+          s=s.next
+          discfound=true
         else
-            local s = start.next
-            local discfound = false
-            local last = stop
-            local nofreplacements = 0
-            local skipmark = currentlookup.flags[1]
-            while s do
-                local id = s.id
-                if id == disc_code then
-                    s = s.next
-                    discfound = true
-                else
-                    local schar = s.char
-                    if skipmark and marks[schar] then -- marks
-                        s = s.next
-                    else
-                        local lg = ligatures[schar]
-                        if lg then
-                            ligatures, last, nofreplacements = lg, s, nofreplacements + 1
-                            if s == stop then
-                                break
-                            else
-                                s = s.next
-                            end
-                        else
-                            break
-                        end
-                    end
-                end
-            end
-            local l2 = ligatures.ligature
-            if l2 then
-                if chainindex then
-                    stop = last
-                end
-                if trace_ligatures then
-                    if start == stop then
-                        logprocess("%s: replacing character %s by ligature %s",cref(kind,chainname,chainlookupname,lookupname,chainindex),gref(startchar),gref(l2))
-                    else
-                        logprocess("%s: replacing character %s upto %s by ligature %s",cref(kind,chainname,chainlookupname,lookupname,chainindex),gref(startchar),gref(stop.char),gref(l2))
-                    end
-                end
-                start = toligature(kind,lookupname,start,stop,l2,currentlookup.flags[1],discfound)
-                return head, start, true, nofreplacements
-            elseif trace_bugs then
-                if start == stop then
-                    logwarning("%s: replacing character %s by ligature fails",cref(kind,chainname,chainlookupname,lookupname,chainindex),gref(startchar))
-                else
-                    logwarning("%s: replacing character %s upto %s by ligature fails",cref(kind,chainname,chainlookupname,lookupname,chainindex),gref(startchar),gref(stop.char))
-                end
-            end
+          local schar=s.char
+          if skipmark and marks[schar] then 
+            s=s.next
+          else
+            local lg=ligatures[schar]
+            if lg then
+              ligatures,last,nofreplacements=lg,s,nofreplacements+1
+              if s==stop then
+                break
+              else
+                s=s.next
+              end
+            else
+              break
+            end
+          end
+        end
+      end
+      local l2=ligatures.ligature
+      if l2 then
+        if chainindex then
+          stop=last
+        end
+        if trace_ligatures then
+          if start==stop then
+            logprocess("%s: replacing character %s by ligature %s",cref(kind,chainname,chainlookupname,lookupname,chainindex),gref(startchar),gref(l2))
+          else
+            logprocess("%s: replacing character %s upto %s by ligature %s",cref(kind,chainname,chainlookupname,lookupname,chainindex),gref(startchar),gref(stop.char),gref(l2))
+          end
+        end
+        start=toligature(kind,lookupname,start,stop,l2,currentlookup.flags[1],discfound)
+        return head,start,true,nofreplacements
+      elseif trace_bugs then
+        if start==stop then
+          logwarning("%s: replacing character %s by ligature fails",cref(kind,chainname,chainlookupname,lookupname,chainindex),gref(startchar))
+        else
+          logwarning("%s: replacing character %s upto %s by ligature fails",cref(kind,chainname,chainlookupname,lookupname,chainindex),gref(startchar),gref(stop.char))
         end
+      end
     end
-    return head, start, false, 0
+  end
+  return head,start,false,0
 end
-
-chainmores.gsub_ligature = chainprocs.gsub_ligature
-
+chainmores.gsub_ligature=chainprocs.gsub_ligature
 function chainprocs.gpos_mark2base(head,start,stop,kind,chainname,currentcontext,lookuphash,currentlookup,chainlookupname)
-    local markchar = start.char
-    if marks[markchar] then
-        local subtables = currentlookup.subtables
-        local lookupname = subtables[1]
-        local markanchors = lookuphash[lookupname]
-        if markanchors then
-            markanchors = markanchors[markchar]
-        end
-        if markanchors then
-            local base = start.prev -- [glyph] [start=mark]
-            if base and base.id == glyph_code and base.font == currentfont and base.subtype<256 then
-                local basechar = base.char
-                if marks[basechar] then
-                    while true do
-                        base = base.prev
-                        if base and base.id == glyph_code and base.font == currentfont and base.subtype<256 then
-                            basechar = base.char
-                            if not marks[basechar] then
-                                break
-                            end
-                        else
-                            if trace_bugs then
-                                logwarning("%s: no base for mark %s",pref(kind,lookupname),gref(markchar))
-                            end
-                            return head, start, false
-                        end
-                    end
-                end
-                local baseanchors = descriptions[basechar].anchors
-                if baseanchors then
-                    local baseanchors = baseanchors['basechar']
-                    if baseanchors then
-                        local al = anchorlookups[lookupname]
-                        for anchor,ba in next, baseanchors do
-                            if al[anchor] then
-                                local ma = markanchors[anchor]
-                                if ma then
-                                    local dx, dy, bound = setmark(start,base,tfmdata.parameters.factor,rlmode,ba,ma)
-                                    if trace_marks then
-                                        logprocess("%s, anchor %s, bound %s: anchoring mark %s to basechar %s => (%s,%s)",
-                                            cref(kind,chainname,chainlookupname,lookupname),anchor,bound,gref(markchar),gref(basechar),dx,dy)
-                                    end
-                                    return head, start, true
-                                end
-                            end
-                        end
-                        if trace_bugs then
-                            logwarning("%s, no matching anchors for mark %s and base %s",cref(kind,chainname,chainlookupname,lookupname),gref(markchar),gref(basechar))
-                        end
-                    end
-                end
-            elseif trace_bugs then
-                logwarning("%s: prev node is no char",cref(kind,chainname,chainlookupname,lookupname))
+  local markchar=start.char
+  if marks[markchar] then
+    local subtables=currentlookup.subtables
+    local lookupname=subtables[1]
+    local markanchors=lookuphash[lookupname]
+    if markanchors then
+      markanchors=markanchors[markchar]
+    end
+    if markanchors then
+      local base=start.prev 
+      if base and base.id==glyph_code and base.font==currentfont and base.subtype<256 then
+        local basechar=base.char
+        if marks[basechar] then
+          while true do
+            base=base.prev
+            if base and base.id==glyph_code and base.font==currentfont and base.subtype<256 then
+              basechar=base.char
+              if not marks[basechar] then
+                break
+              end
+            else
+              if trace_bugs then
+                logwarning("%s: no base for mark %s",pref(kind,lookupname),gref(markchar))
+              end
+              return head,start,false
+            end
+          end
+        end
+        local baseanchors=descriptions[basechar].anchors
+        if baseanchors then
+          local baseanchors=baseanchors['basechar']
+          if baseanchors then
+            local al=anchorlookups[lookupname]
+            for anchor,ba in next,baseanchors do
+              if al[anchor] then
+                local ma=markanchors[anchor]
+                if ma then
+                  local dx,dy,bound=setmark(start,base,tfmdata.parameters.factor,rlmode,ba,ma)
+                  if trace_marks then
+                    logprocess("%s, anchor %s, bound %s: anchoring mark %s to basechar %s => (%s,%s)",
+                      cref(kind,chainname,chainlookupname,lookupname),anchor,bound,gref(markchar),gref(basechar),dx,dy)
+                  end
+                  return head,start,true
+                end
+              end
             end
-        elseif trace_bugs then
-            logwarning("%s: mark %s has no anchors",cref(kind,chainname,chainlookupname,lookupname),gref(markchar))
+            if trace_bugs then
+              logwarning("%s, no matching anchors for mark %s and base %s",cref(kind,chainname,chainlookupname,lookupname),gref(markchar),gref(basechar))
+            end
+          end
         end
+      elseif trace_bugs then
+        logwarning("%s: prev node is no char",cref(kind,chainname,chainlookupname,lookupname))
+      end
     elseif trace_bugs then
-        logwarning("%s: mark %s is no mark",cref(kind,chainname,chainlookupname),gref(markchar))
+      logwarning("%s: mark %s has no anchors",cref(kind,chainname,chainlookupname,lookupname),gref(markchar))
     end
-    return head, start, false
+  elseif trace_bugs then
+    logwarning("%s: mark %s is no mark",cref(kind,chainname,chainlookupname),gref(markchar))
+  end
+  return head,start,false
 end
-
 function chainprocs.gpos_mark2ligature(head,start,stop,kind,chainname,currentcontext,lookuphash,currentlookup,chainlookupname)
-    local markchar = start.char
-    if marks[markchar] then
-        local subtables = currentlookup.subtables
-        local lookupname = subtables[1]
-        local markanchors = lookuphash[lookupname]
-        if markanchors then
-            markanchors = markanchors[markchar]
-        end
-        if markanchors then
-            local base = start.prev -- [glyph] [optional marks] [start=mark]
-            if base and base.id == glyph_code and base.font == currentfont and base.subtype<256 then
-                local basechar = base.char
-                if marks[basechar] then
-                    while true do
-                        base = base.prev
-                        if base and base.id == glyph_code and base.font == currentfont and base.subtype<256 then
-                            basechar = base.char
-                            if not marks[basechar] then
-                                break
-                            end
-                        else
-                            if trace_bugs then
-                                logwarning("%s: no base for mark %s",cref(kind,chainname,chainlookupname,lookupname),markchar)
-                            end
-                            return head, start, false
-                        end
-                    end
-                end
-                -- todo: like marks a ligatures hash
-                local index = start[a_ligacomp]
-                local baseanchors = descriptions[basechar].anchors
-                if baseanchors then
-                   local baseanchors = baseanchors['baselig']
-                   if baseanchors then
-                        local al = anchorlookups[lookupname]
-                        for anchor,ba in next, baseanchors do
-                            if al[anchor] then
-                                local ma = markanchors[anchor]
-                                if ma then
-                                    ba = ba[index]
-                                    if ba then
-                                        local dx, dy, bound = setmark(start,base,tfmdata.parameters.factor,rlmode,ba,ma) -- index
-                                        if trace_marks then
-                                            logprocess("%s, anchor %s, bound %s: anchoring mark %s to baselig %s at index %s => (%s,%s)",
-                                                cref(kind,chainname,chainlookupname,lookupname),anchor,a or bound,gref(markchar),gref(basechar),index,dx,dy)
-                                        end
-                                        return head, start, true
-                                    end
-                                end
-                            end
-                        end
-                        if trace_bugs then
-                            logwarning("%s: no matching anchors for mark %s and baselig %s",cref(kind,chainname,chainlookupname,lookupname),gref(markchar),gref(basechar))
-                        end
-                    end
-                end
-            elseif trace_bugs then
-                logwarning("feature %s, lookup %s: prev node is no char",kind,lookupname)
+  local markchar=start.char
+  if marks[markchar] then
+    local subtables=currentlookup.subtables
+    local lookupname=subtables[1]
+    local markanchors=lookuphash[lookupname]
+    if markanchors then
+      markanchors=markanchors[markchar]
+    end
+    if markanchors then
+      local base=start.prev 
+      if base and base.id==glyph_code and base.font==currentfont and base.subtype<256 then
+        local basechar=base.char
+        if marks[basechar] then
+          while true do
+            base=base.prev
+            if base and base.id==glyph_code and base.font==currentfont and base.subtype<256 then
+              basechar=base.char
+              if not marks[basechar] then
+                break
+              end
+            else
+              if trace_bugs then
+                logwarning("%s: no base for mark %s",cref(kind,chainname,chainlookupname,lookupname),markchar)
+              end
+              return head,start,false
+            end
+          end
+        end
+        local index=start[a_ligacomp]
+        local baseanchors=descriptions[basechar].anchors
+        if baseanchors then
+          local baseanchors=baseanchors['baselig']
+          if baseanchors then
+            local al=anchorlookups[lookupname]
+            for anchor,ba in next,baseanchors do
+              if al[anchor] then
+                local ma=markanchors[anchor]
+                if ma then
+                  ba=ba[index]
+                  if ba then
+                    local dx,dy,bound=setmark(start,base,tfmdata.parameters.factor,rlmode,ba,ma) 
+                    if trace_marks then
+                      logprocess("%s, anchor %s, bound %s: anchoring mark %s to baselig %s at index %s => (%s,%s)",
+                        cref(kind,chainname,chainlookupname,lookupname),anchor,a or bound,gref(markchar),gref(basechar),index,dx,dy)
+                    end
+                    return head,start,true
+                  end
+                end
+              end
             end
-        elseif trace_bugs then
-            logwarning("%s: mark %s has no anchors",cref(kind,chainname,chainlookupname,lookupname),gref(markchar))
+            if trace_bugs then
+              logwarning("%s: no matching anchors for mark %s and baselig %s",cref(kind,chainname,chainlookupname,lookupname),gref(markchar),gref(basechar))
+            end
+          end
         end
+      elseif trace_bugs then
+        logwarning("feature %s, lookup %s: prev node is no char",kind,lookupname)
+      end
     elseif trace_bugs then
-        logwarning("%s: mark %s is no mark",cref(kind,chainname,chainlookupname),gref(markchar))
+      logwarning("%s: mark %s has no anchors",cref(kind,chainname,chainlookupname,lookupname),gref(markchar))
     end
-    return head, start, false
+  elseif trace_bugs then
+    logwarning("%s: mark %s is no mark",cref(kind,chainname,chainlookupname),gref(markchar))
+  end
+  return head,start,false
 end
-
 function chainprocs.gpos_mark2mark(head,start,stop,kind,chainname,currentcontext,lookuphash,currentlookup,chainlookupname)
-    local markchar = start.char
-    if marks[markchar] then
---~         local alreadydone = markonce and start[a_markmark]
---~         if not alreadydone then
-        --  local markanchors = descriptions[markchar].anchors markanchors = markanchors and markanchors.mark
-            local subtables = currentlookup.subtables
-            local lookupname = subtables[1]
-            local markanchors = lookuphash[lookupname]
-            if markanchors then
-                markanchors = markanchors[markchar]
-            end
-            if markanchors then
-                local base = start.prev -- [glyph] [basemark] [start=mark]
-                local slc = start[a_ligacomp]
-                if slc then -- a rather messy loop ... needs checking with husayni
-                    while base do
-                        local blc = base[a_ligacomp]
-                        if blc and blc ~= slc then
-                            base = base.prev
-                        else
-                            break
-                        end
-                    end
-                end
-                if base and base.id == glyph_code and base.font == currentfont and base.subtype<256 then -- subtype test can go
-                    local basechar = base.char
-                    local baseanchors = descriptions[basechar].anchors
-                    if baseanchors then
-                        baseanchors = baseanchors['basemark']
-                        if baseanchors then
-                            local al = anchorlookups[lookupname]
-                            for anchor,ba in next, baseanchors do
-                                if al[anchor] then
-                                    local ma = markanchors[anchor]
-                                    if ma then
-                                        local dx, dy, bound = setmark(start,base,tfmdata.parameters.factor,rlmode,ba,ma)
-                                        if trace_marks then
-                                            logprocess("%s, anchor %s, bound %s: anchoring mark %s to basemark %s => (%s,%s)",
-                                                cref(kind,chainname,chainlookupname,lookupname),anchor,bound,gref(markchar),gref(basechar),dx,dy)
-                                        end
-                                        return head, start, true
-                                    end
-                                end
-                            end
-                            if trace_bugs then
-                                logwarning("%s: no matching anchors for mark %s and basemark %s",gref(kind,chainname,chainlookupname,lookupname),gref(markchar),gref(basechar))
-                            end
-                        end
-                    end
-                elseif trace_bugs then
-                    logwarning("%s: prev node is no mark",cref(kind,chainname,chainlookupname,lookupname))
-                end
-            elseif trace_bugs then
-                logwarning("%s: mark %s has no anchors",cref(kind,chainname,chainlookupname,lookupname),gref(markchar))
+  local markchar=start.char
+  if marks[markchar] then
+      local subtables=currentlookup.subtables
+      local lookupname=subtables[1]
+      local markanchors=lookuphash[lookupname]
+      if markanchors then
+        markanchors=markanchors[markchar]
+      end
+      if markanchors then
+        local base=start.prev 
+        local slc=start[a_ligacomp]
+        if slc then 
+          while base do
+            local blc=base[a_ligacomp]
+            if blc and blc~=slc then
+              base=base.prev
+            else
+              break
             end
---~         elseif trace_marks and trace_details then
---~             logprocess("%s, mark %s is already bound (n=%s), ignoring mark2mark",pref(kind,lookupname),gref(markchar),alreadydone)
---~         end
-    elseif trace_bugs then
-        logwarning("%s: mark %s is no mark",cref(kind,chainname,chainlookupname),gref(markchar))
-    end
-    return head, start, false
+          end
+        end
+        if base and base.id==glyph_code and base.font==currentfont and base.subtype<256 then 
+          local basechar=base.char
+          local baseanchors=descriptions[basechar].anchors
+          if baseanchors then
+            baseanchors=baseanchors['basemark']
+            if baseanchors then
+              local al=anchorlookups[lookupname]
+              for anchor,ba in next,baseanchors do
+                if al[anchor] then
+                  local ma=markanchors[anchor]
+                  if ma then
+                    local dx,dy,bound=setmark(start,base,tfmdata.parameters.factor,rlmode,ba,ma)
+                    if trace_marks then
+                      logprocess("%s, anchor %s, bound %s: anchoring mark %s to basemark %s => (%s,%s)",
+                        cref(kind,chainname,chainlookupname,lookupname),anchor,bound,gref(markchar),gref(basechar),dx,dy)
+                    end
+                    return head,start,true
+                  end
+                end
+              end
+              if trace_bugs then
+                logwarning("%s: no matching anchors for mark %s and basemark %s",gref(kind,chainname,chainlookupname,lookupname),gref(markchar),gref(basechar))
+              end
+            end
+          end
+        elseif trace_bugs then
+          logwarning("%s: prev node is no mark",cref(kind,chainname,chainlookupname,lookupname))
+        end
+      elseif trace_bugs then
+        logwarning("%s: mark %s has no anchors",cref(kind,chainname,chainlookupname,lookupname),gref(markchar))
+      end
+  elseif trace_bugs then
+    logwarning("%s: mark %s is no mark",cref(kind,chainname,chainlookupname),gref(markchar))
+  end
+  return head,start,false
 end
-
 function chainprocs.gpos_cursive(head,start,stop,kind,chainname,currentcontext,lookuphash,currentlookup,chainlookupname)
-    local alreadydone = cursonce and start[a_cursbase]
-    if not alreadydone then
-        local startchar = start.char
-        local subtables = currentlookup.subtables
-        local lookupname = subtables[1]
-        local exitanchors = lookuphash[lookupname]
-        if exitanchors then
-            exitanchors = exitanchors[startchar]
-        end
-        if exitanchors then
-            local done = false
-            if marks[startchar] then
-                if trace_cursive then
-                    logprocess("%s: ignoring cursive for mark %s",pref(kind,lookupname),gref(startchar))
-                end
-            else
-                local nxt = start.next
-                while not done and nxt and nxt.id == glyph_code and nxt.font == currentfont and nxt.subtype<256 do
-                    local nextchar = nxt.char
-                    if marks[nextchar] then
-                        -- should not happen (maybe warning)
-                        nxt = nxt.next
-                    else
-                        local entryanchors = descriptions[nextchar]
-                        if entryanchors then
-                            entryanchors = entryanchors.anchors
-                            if entryanchors then
-                                entryanchors = entryanchors['centry']
-                                if entryanchors then
-                                    local al = anchorlookups[lookupname]
-                                    for anchor, entry in next, entryanchors do
-                                        if al[anchor] then
-                                            local exit = exitanchors[anchor]
-                                            if exit then
-                                                local dx, dy, bound = setcursive(start,nxt,tfmdata.parameters.factor,rlmode,exit,entry,characters[startchar],characters[nextchar])
-                                                if trace_cursive then
-                                                    logprocess("%s: moving %s to %s cursive (%s,%s) using anchor %s and bound %s in rlmode %s",pref(kind,lookupname),gref(startchar),gref(nextchar),dx,dy,anchor,bound,rlmode)
-                                                end
-                                                done = true
-                                                break
-                                            end
-                                        end
-                                    end
-                                end
-                            end
-                        else -- if trace_bugs then
-                        --  logwarning("%s: char %s is missing in font",pref(kind,lookupname),gref(startchar))
-                            onetimemessage(currentfont,startchar,"no entry anchors",report_fonts)
+  local alreadydone=cursonce and start[a_cursbase]
+  if not alreadydone then
+    local startchar=start.char
+    local subtables=currentlookup.subtables
+    local lookupname=subtables[1]
+    local exitanchors=lookuphash[lookupname]
+    if exitanchors then
+      exitanchors=exitanchors[startchar]
+    end
+    if exitanchors then
+      local done=false
+      if marks[startchar] then
+        if trace_cursive then
+          logprocess("%s: ignoring cursive for mark %s",pref(kind,lookupname),gref(startchar))
+        end
+      else
+        local nxt=start.next
+        while not done and nxt and nxt.id==glyph_code and nxt.font==currentfont and nxt.subtype<256 do
+          local nextchar=nxt.char
+          if marks[nextchar] then
+            nxt=nxt.next
+          else
+            local entryanchors=descriptions[nextchar]
+            if entryanchors then
+              entryanchors=entryanchors.anchors
+              if entryanchors then
+                entryanchors=entryanchors['centry']
+                if entryanchors then
+                  local al=anchorlookups[lookupname]
+                  for anchor,entry in next,entryanchors do
+                    if al[anchor] then
+                      local exit=exitanchors[anchor]
+                      if exit then
+                        local dx,dy,bound=setcursive(start,nxt,tfmdata.parameters.factor,rlmode,exit,entry,characters[startchar],characters[nextchar])
+                        if trace_cursive then
+                          logprocess("%s: moving %s to %s cursive (%s,%s) using anchor %s and bound %s in rlmode %s",pref(kind,lookupname),gref(startchar),gref(nextchar),dx,dy,anchor,bound,rlmode)
                         end
+                        done=true
                         break
+                      end
                     end
+                  end
                 end
+              end
+            else
+              onetimemessage(currentfont,startchar,"no entry anchors",report_fonts)
             end
-            return head, start, done
-        else
-            if trace_cursive and trace_details then
-                logprocess("%s, cursive %s is already done",pref(kind,lookupname),gref(start.char),alreadydone)
-            end
-            return head, start, false
+            break
+          end
         end
+      end
+      return head,start,done
+    else
+      if trace_cursive and trace_details then
+        logprocess("%s, cursive %s is already done",pref(kind,lookupname),gref(start.char),alreadydone)
+      end
+      return head,start,false
     end
-    return head, start, false
+  end
+  return head,start,false
 end
-
 function chainprocs.gpos_single(head,start,stop,kind,chainname,currentcontext,lookuphash,currentlookup,chainlookupname,chainindex,sequence)
-    -- untested .. needs checking for the new model
-    local startchar = start.char
-    local subtables = currentlookup.subtables
-    local lookupname = subtables[1]
-    local kerns = lookuphash[lookupname]
+  local startchar=start.char
+  local subtables=currentlookup.subtables
+  local lookupname=subtables[1]
+  local kerns=lookuphash[lookupname]
+  if kerns then
+    kerns=kerns[startchar] 
     if kerns then
-        kerns = kerns[startchar] -- needed ?
-        if kerns then
-            local dx, dy, w, h = setpair(start,tfmdata.parameters.factor,rlmode,sequence.flags[4],kerns,characters[startchar])
-            if trace_kerns then
-                logprocess("%s: shifting single %s by (%s,%s) and correction (%s,%s)",cref(kind,chainname,chainlookupname),gref(startchar),dx,dy,w,h)
-            end
-        end
+      local dx,dy,w,h=setpair(start,tfmdata.parameters.factor,rlmode,sequence.flags[4],kerns,characters[startchar])
+      if trace_kerns then
+        logprocess("%s: shifting single %s by (%s,%s) and correction (%s,%s)",cref(kind,chainname,chainlookupname),gref(startchar),dx,dy,w,h)
+      end
     end
-    return head, start, false
+  end
+  return head,start,false
 end
-
--- when machines become faster i will make a shared function
-
 function chainprocs.gpos_pair(head,start,stop,kind,chainname,currentcontext,lookuphash,currentlookup,chainlookupname,chainindex,sequence)
---    logwarning("%s: gpos_pair not yet supported",cref(kind,chainname,chainlookupname))
-    local snext = start.next
-    if snext then
-        local startchar = start.char
-        local subtables = currentlookup.subtables
-        local lookupname = subtables[1]
-        local kerns = lookuphash[lookupname]
-        if kerns then
-            kerns = kerns[startchar]
-            if kerns then
-                local lookuptype = lookuptypes[lookupname]
-                local prev, done = start, false
-                local factor = tfmdata.parameters.factor
-                while snext and snext.id == glyph_code and snext.font == currentfont and snext.subtype<256 do
-                    local nextchar = snext.char
-                    local krn = kerns[nextchar]
-                    if not krn and marks[nextchar] then
-                        prev = snext
-                        snext = snext.next
-                    else
-                        if not krn then
-                            -- skip
-                        elseif type(krn) == "table" then
-                            if lookuptype == "pair" then
-                                local a, b = krn[2], krn[3]
-                                if a and #a > 0 then
-                                    local startchar = start.char
-                                    local x, y, w, h = setpair(start,factor,rlmode,sequence.flags[4],a,characters[startchar])
-                                    if trace_kerns then
-                                        logprocess("%s: shifting first of pair %s and %s by (%s,%s) and correction (%s,%s)",cref(kind,chainname,chainlookupname),gref(startchar),gref(nextchar),x,y,w,h)
-                                    end
-                                end
-                                if b and #b > 0 then
-                                    local startchar = start.char
-                                    local x, y, w, h = setpair(snext,factor,rlmode,sequence.flags[4],b,characters[nextchar])
-                                    if trace_kerns then
-                                        logprocess("%s: shifting second of pair %s and %s by (%s,%s) and correction (%s,%s)",cref(kind,chainname,chainlookupname),gref(startchar),gref(nextchar),x,y,w,h)
-                                    end
-                                end
-                            else
-                                report_process("%s: check this out (old kern stuff)",cref(kind,chainname,chainlookupname))
-                                local a, b = krn[2], krn[6]
-                                if a and a ~= 0 then
-                                    local k = setkern(snext,factor,rlmode,a)
-                                    if trace_kerns then
-                                        logprocess("%s: inserting first kern %s between %s and %s",cref(kind,chainname,chainlookupname),k,gref(prev.char),gref(nextchar))
-                                    end
-                                end
-                                if b and b ~= 0 then
-                                    logwarning("%s: ignoring second kern xoff %s",cref(kind,chainname,chainlookupname),b*factor)
-                                end
-                            end
-                            done = true
-                        elseif krn ~= 0 then
-                            local k = setkern(snext,factor,rlmode,krn)
-                            if trace_kerns then
-                                logprocess("%s: inserting kern %s between %s and %s",cref(kind,chainname,chainlookupname),k,gref(prev.char),gref(nextchar))
-                            end
-                            done = true
-                        end
-                        break
-                    end
-                end
-                return head, start, done
+  local snext=start.next
+  if snext then
+    local startchar=start.char
+    local subtables=currentlookup.subtables
+    local lookupname=subtables[1]
+    local kerns=lookuphash[lookupname]
+    if kerns then
+      kerns=kerns[startchar]
+      if kerns then
+        local lookuptype=lookuptypes[lookupname]
+        local prev,done=start,false
+        local factor=tfmdata.parameters.factor
+        while snext and snext.id==glyph_code and snext.font==currentfont and snext.subtype<256 do
+          local nextchar=snext.char
+          local krn=kerns[nextchar]
+          if not krn and marks[nextchar] then
+            prev=snext
+            snext=snext.next
+          else
+            if not krn then
+            elseif type(krn)=="table" then
+              if lookuptype=="pair" then
+                local a,b=krn[2],krn[3]
+                if a and #a>0 then
+                  local startchar=start.char
+                  local x,y,w,h=setpair(start,factor,rlmode,sequence.flags[4],a,characters[startchar])
+                  if trace_kerns then
+                    logprocess("%s: shifting first of pair %s and %s by (%s,%s) and correction (%s,%s)",cref(kind,chainname,chainlookupname),gref(startchar),gref(nextchar),x,y,w,h)
+                  end
+                end
+                if b and #b>0 then
+                  local startchar=start.char
+                  local x,y,w,h=setpair(snext,factor,rlmode,sequence.flags[4],b,characters[nextchar])
+                  if trace_kerns then
+                    logprocess("%s: shifting second of pair %s and %s by (%s,%s) and correction (%s,%s)",cref(kind,chainname,chainlookupname),gref(startchar),gref(nextchar),x,y,w,h)
+                  end
+                end
+              else
+                report_process("%s: check this out (old kern stuff)",cref(kind,chainname,chainlookupname))
+                local a,b=krn[2],krn[6]
+                if a and a~=0 then
+                  local k=setkern(snext,factor,rlmode,a)
+                  if trace_kerns then
+                    logprocess("%s: inserting first kern %s between %s and %s",cref(kind,chainname,chainlookupname),k,gref(prev.char),gref(nextchar))
+                  end
+                end
+                if b and b~=0 then
+                  logwarning("%s: ignoring second kern xoff %s",cref(kind,chainname,chainlookupname),b*factor)
+                end
+              end
+              done=true
+            elseif krn~=0 then
+              local k=setkern(snext,factor,rlmode,krn)
+              if trace_kerns then
+                logprocess("%s: inserting kern %s between %s and %s",cref(kind,chainname,chainlookupname),k,gref(prev.char),gref(nextchar))
+              end
+              done=true
             end
+            break
+          end
         end
+        return head,start,done
+      end
     end
-    return head, start, false
+  end
+  return head,start,false
 end
-
--- what pointer to return, spec says stop
--- to be discussed ... is bidi changer a space?
--- elseif char == zwnj and sequence[n][32] then -- brrr
-
--- somehow l or f is global
--- we don't need to pass the currentcontext, saves a bit
--- make a slow variant then can be activated but with more tracing
-
 local function show_skip(kind,chainname,char,ck,class)
-    if ck[9] then
-        logwarning("%s: skipping char %s (%s) in rule %s, lookuptype %s (%s=>%s)",cref(kind,chainname),gref(char),class,ck[1],ck[2],ck[9],ck[10])
-    else
-        logwarning("%s: skipping char %s (%s) in rule %s, lookuptype %s",cref(kind,chainname),gref(char),class,ck[1],ck[2])
-    end
+  if ck[9] then
+    logwarning("%s: skipping char %s (%s) in rule %s, lookuptype %s (%s=>%s)",cref(kind,chainname),gref(char),class,ck[1],ck[2],ck[9],ck[10])
+  else
+    logwarning("%s: skipping char %s (%s) in rule %s, lookuptype %s",cref(kind,chainname),gref(char),class,ck[1],ck[2])
+  end
 end
-
 local function normal_handle_contextchain(head,start,kind,chainname,contexts,sequence,lookuphash)
-    --  local rule, lookuptype, sequence, f, l, lookups = ck[1], ck[2] ,ck[3], ck[4], ck[5], ck[6]
-    local flags        = sequence.flags
-    local done         = false
-    local skipmark     = flags[1]
-    local skipligature = flags[2]
-    local skipbase     = flags[3]
-    local someskip     = skipmark or skipligature or skipbase -- could be stored in flags for a fast test (hm, flags could be false !)
-    local markclass    = sequence.markclass                   -- todo, first we need a proper test
-    local skipped      = false
-    for k=1,#contexts do
-        local match   = true
-        local current = start
-        local last    = start
-        local ck      = contexts[k]
-        local seq     = ck[3]
-        local s       = #seq
-        -- f..l = mid string
-        if s == 1 then
-            -- never happens
-            match = current.id == glyph_code and current.font == currentfont and current.subtype<256 and seq[1][current.char]
+  local flags=sequence.flags
+  local done=false
+  local skipmark=flags[1]
+  local skipligature=flags[2]
+  local skipbase=flags[3]
+  local someskip=skipmark or skipligature or skipbase 
+  local markclass=sequence.markclass          
+  local skipped=false
+  for k=1,#contexts do
+    local match=true
+    local current=start
+    local last=start
+    local ck=contexts[k]
+    local seq=ck[3]
+    local s=#seq
+    if s==1 then
+      match=current.id==glyph_code and current.font==currentfont and current.subtype<256 and seq[1][current.char]
+    else
+      local f,l=ck[4],ck[5]
+      if f==1 and f==l then
+      else
+        if f==l then
         else
-            -- maybe we need a better space check (maybe check for glue or category or combination)
-            -- we cannot optimize for n=2 because there can be disc nodes
-            local f, l = ck[4], ck[5]
-            -- current match
-            if f == 1 and f == l then -- current only
-                -- already a hit
-             -- match = true
-            else -- before/current/after | before/current | current/after
-                -- no need to test first hit (to be optimized)
-                if f == l then -- new, else last out of sync (f is > 1)
-                 -- match = true
-                else
-                    local n = f + 1
-                    last = last.next
-                    while n <= l do
-                        if last then
-                            local id = last.id
-                            if id == glyph_code then
-                                if last.font == currentfont and last.subtype<256 then
-                                    local char = last.char
-                                    local ccd = descriptions[char]
-                                    if ccd then
-                                        local class = ccd.class
-                                        if class == skipmark or class == skipligature or class == skipbase or (markclass and class == "mark" and not markclass[char]) then
-                                            skipped = true
-                                            if trace_skips then
-                                                show_skip(kind,chainname,char,ck,class)
-                                            end
-                                            last = last.next
-                                        elseif seq[n][char] then
-                                            if n < l then
-                                                last = last.next
-                                            end
-                                            n = n + 1
-                                        else
-                                            match = false
-                                            break
-                                        end
-                                    else
-                                        match = false
-                                        break
-                                    end
-                                else
-                                    match = false
-                                    break
-                                end
-                            elseif id == disc_code then
-                                last = last.next
-                            else
-                                match = false
-                                break
-                            end
-                        else
-                            match = false
-                            break
-                        end
-                    end
-                end
-            end
-            -- before
-            if match and f > 1 then
-                local prev = start.prev
-                if prev then
-                    local n = f-1
-                    while n >= 1 do
-                        if prev then
-                            local id = prev.id
-                            if id == glyph_code then
-                                if prev.font == currentfont and prev.subtype<256 then -- normal char
-                                    local char = prev.char
-                                    local ccd = descriptions[char]
-                                    if ccd then
-                                        local class = ccd.class
-                                        if class == skipmark or class == skipligature or class == skipbase or (markclass and class == "mark" and not markclass[char]) then
-                                            skipped = true
-                                            if trace_skips then
-                                                show_skip(kind,chainname,char,ck,class)
-                                            end
-                                        elseif seq[n][char] then
-                                            n = n -1
-                                        else
-                                            match = false
-                                            break
-                                        end
-                                    else
-                                        match = false
-                                        break
-                                    end
-                                else
-                                    match = false
-                                    break
-                                end
-                            elseif id == disc_code then
-                                -- skip 'm
-                            elseif seq[n][32] then
-                                n = n -1
-                            else
-                                match = false
-                                break
-                            end
-                            prev = prev.prev
-                        elseif seq[n][32] then -- somewhat special, as zapfino can have many preceding spaces
-                            n = n -1
-                        else
-                            match = false
-                            break
-                        end
+          local n=f+1
+          last=last.next
+          while n<=l do
+            if last then
+              local id=last.id
+              if id==glyph_code then
+                if last.font==currentfont and last.subtype<256 then
+                  local char=last.char
+                  local ccd=descriptions[char]
+                  if ccd then
+                    local class=ccd.class
+                    if class==skipmark or class==skipligature or class==skipbase or (markclass and class=="mark" and not markclass[char]) then
+                      skipped=true
+                      if trace_skips then
+                        show_skip(kind,chainname,char,ck,class)
+                      end
+                      last=last.next
+                    elseif seq[n][char] then
+                      if n<l then
+                        last=last.next
+                      end
+                      n=n+1
+                    else
+                      match=false
+                      break
                     end
-                elseif f == 2 then
-                    match = seq[1][32]
+                  else
+                    match=false
+                    break
+                  end
                 else
-                    for n=f-1,1 do
-                        if not seq[n][32] then
-                            match = false
-                            break
-                        end
-                    end
+                  match=false
+                  break
                 end
+              elseif id==disc_code then
+                last=last.next
+              else
+                match=false
+                break
+              end
+            else
+              match=false
+              break
             end
-            -- after
-            if match and s > l then
-                local current = last and last.next
-                if current then
-                    -- removed optimization for s-l == 1, we have to deal with marks anyway
-                    local n = l + 1
-                    while n <= s do
-                        if current then
-                            local id = current.id
-                            if id == glyph_code then
-                                if current.font == currentfont and current.subtype<256 then -- normal char
-                                    local char = current.char
-                                    local ccd = descriptions[char]
-                                    if ccd then
-                                        local class = ccd.class
-                                        if class == skipmark or class == skipligature or class == skipbase or (markclass and class == "mark" and not markclass[char]) then
-                                            skipped = true
-                                            if trace_skips then
-                                                show_skip(kind,chainname,char,ck,class)
-                                            end
-                                        elseif seq[n][char] then
-                                            n = n + 1
-                                        else
-                                            match = false
-                                            break
-                                        end
-                                    else
-                                        match = false
-                                        break
-                                    end
-                                else
-                                    match = false
-                                    break
-                                end
-                            elseif id == disc_code then
-                                -- skip 'm
-                            elseif seq[n][32] then -- brrr
-                                n = n + 1
-                            else
-                                match = false
-                                break
-                            end
-                            current = current.next
-                        elseif seq[n][32] then
-                            n = n + 1
-                        else
-                            match = false
-                            break
-                        end
+          end
+        end
+      end
+      if match and f>1 then
+        local prev=start.prev
+        if prev then
+          local n=f-1
+          while n>=1 do
+            if prev then
+              local id=prev.id
+              if id==glyph_code then
+                if prev.font==currentfont and prev.subtype<256 then 
+                  local char=prev.char
+                  local ccd=descriptions[char]
+                  if ccd then
+                    local class=ccd.class
+                    if class==skipmark or class==skipligature or class==skipbase or (markclass and class=="mark" and not markclass[char]) then
+                      skipped=true
+                      if trace_skips then
+                        show_skip(kind,chainname,char,ck,class)
+                      end
+                    elseif seq[n][char] then
+                      n=n -1
+                    else
+                      match=false
+                      break
                     end
-                elseif s-l == 1 then
-                    match = seq[s][32]
+                  else
+                    match=false
+                    break
+                  end
                 else
-                    for n=l+1,s do
-                        if not seq[n][32] then
-                            match = false
-                            break
-                        end
-                    end
-                end
+                  match=false
+                  break
+                end
+              elseif id==disc_code then
+              elseif seq[n][32] then
+                n=n -1
+              else
+                match=false
+                break
+              end
+              prev=prev.prev
+            elseif seq[n][32] then 
+              n=n -1
+            else
+              match=false
+              break
             end
-        end
-        if match then
-            -- ck == currentcontext
-            if trace_contexts then
-                local rule, lookuptype, f, l = ck[1], ck[2], ck[4], ck[5]
-                local char = start.char
-                if ck[9] then
-                    logwarning("%s: rule %s matches at char %s for (%s,%s,%s) chars, lookuptype %s (%s=>%s)",
-                        cref(kind,chainname),rule,gref(char),f-1,l-f+1,s-l,lookuptype,ck[9],ck[10])
+          end
+        elseif f==2 then
+          match=seq[1][32]
+        else
+          for n=f-1,1 do
+            if not seq[n][32] then
+              match=false
+              break
+            end
+          end
+        end
+      end
+      if match and s>l then
+        local current=last and last.next
+        if current then
+          local n=l+1
+          while n<=s do
+            if current then
+              local id=current.id
+              if id==glyph_code then
+                if current.font==currentfont and current.subtype<256 then 
+                  local char=current.char
+                  local ccd=descriptions[char]
+                  if ccd then
+                    local class=ccd.class
+                    if class==skipmark or class==skipligature or class==skipbase or (markclass and class=="mark" and not markclass[char]) then
+                      skipped=true
+                      if trace_skips then
+                        show_skip(kind,chainname,char,ck,class)
+                      end
+                    elseif seq[n][char] then
+                      n=n+1
+                    else
+                      match=false
+                      break
+                    end
+                  else
+                    match=false
+                    break
+                  end
                 else
-                    logwarning("%s: rule %s matches at char %s for (%s,%s,%s) chars, lookuptype %s",
-                        cref(kind,chainname),rule,gref(char),f-1,l-f+1,s-l,lookuptype)
-                end
+                  match=false
+                  break
+                end
+              elseif id==disc_code then
+              elseif seq[n][32] then 
+                n=n+1
+              else
+                match=false
+                break
+              end
+              current=current.next
+            elseif seq[n][32] then
+              n=n+1
+            else
+              match=false
+              break
             end
-            local chainlookups = ck[6]
-            if chainlookups then
-                local nofchainlookups = #chainlookups
-                -- we can speed this up if needed
-                if nofchainlookups == 1 then
-                    local chainlookupname = chainlookups[1]
-                    local chainlookup = lookuptable[chainlookupname]
-                    if chainlookup then
-                        local cp = chainprocs[chainlookup.type]
-                        if cp then
-                            head, start, done = cp(head,start,last,kind,chainname,ck,lookuphash,chainlookup,chainlookupname,nil,sequence)
-                        else
-                            logprocess("%s: %s is not yet supported",cref(kind,chainname,chainlookupname),chainlookup.type)
-                        end
-                    else -- shouldn't happen
-                        logprocess("%s is not yet supported",cref(kind,chainname,chainlookupname))
-                    end
-                 else
-                    local i = 1
-                    repeat
-                        if skipped then
-                            while true do
-                                local char = start.char
-                                local ccd = descriptions[char]
-                                if ccd then
-                                    local class = ccd.class
-                                    if class == skipmark or class == skipligature or class == skipbase or (markclass and class == "mark" and not markclass[char]) then
-                                        start = start.next
-                                    else
-                                        break
-                                    end
-                                else
-                                    break
-                                end
-                            end
-                        end
-                        local chainlookupname = chainlookups[i]
-                        local chainlookup = lookuptable[chainlookupname] -- can be false (n matches, <n replacement)
-                        local cp = chainlookup and chainmores[chainlookup.type]
-                        if cp then
-                            local ok, n
-                            head, start, ok, n = cp(head,start,last,kind,chainname,ck,lookuphash,chainlookup,chainlookupname,i,sequence)
-                            -- messy since last can be changed !
-                            if ok then
-                                done = true
-                                -- skip next one(s) if ligature
-                                i = i + (n or 1)
-                            else
-                                i = i + 1
-                            end
-                        else
-                         -- is valid
-                         -- logprocess("%s: multiple subchains for %s are not yet supported",cref(kind,chainname,chainlookupname),chainlookup and chainlookup.type or "?")
-                            i = i + 1
-                        end
-                        start = start.next
-                    until i > nofchainlookups
-                end
+          end
+        elseif s-l==1 then
+          match=seq[s][32]
+        else
+          for n=l+1,s do
+            if not seq[n][32] then
+              match=false
+              break
+            end
+          end
+        end
+      end
+    end
+    if match then
+      if trace_contexts then
+        local rule,lookuptype,f,l=ck[1],ck[2],ck[4],ck[5]
+        local char=start.char
+        if ck[9] then
+          logwarning("%s: rule %s matches at char %s for (%s,%s,%s) chars, lookuptype %s (%s=>%s)",
+            cref(kind,chainname),rule,gref(char),f-1,l-f+1,s-l,lookuptype,ck[9],ck[10])
+        else
+          logwarning("%s: rule %s matches at char %s for (%s,%s,%s) chars, lookuptype %s",
+            cref(kind,chainname),rule,gref(char),f-1,l-f+1,s-l,lookuptype)
+        end
+      end
+      local chainlookups=ck[6]
+      if chainlookups then
+        local nofchainlookups=#chainlookups
+        if nofchainlookups==1 then
+          local chainlookupname=chainlookups[1]
+          local chainlookup=lookuptable[chainlookupname]
+          if chainlookup then
+            local cp=chainprocs[chainlookup.type]
+            if cp then
+              head,start,done=cp(head,start,last,kind,chainname,ck,lookuphash,chainlookup,chainlookupname,nil,sequence)
             else
-                local replacements = ck[7]
-                if replacements then
-                    head, start, done = chainprocs.reversesub(head,start,last,kind,chainname,ck,lookuphash,replacements) -- sequence
+              logprocess("%s: %s is not yet supported",cref(kind,chainname,chainlookupname),chainlookup.type)
+            end
+          else 
+            logprocess("%s is not yet supported",cref(kind,chainname,chainlookupname))
+          end
+         else
+          local i=1
+          repeat
+            if skipped then
+              while true do
+                local char=start.char
+                local ccd=descriptions[char]
+                if ccd then
+                  local class=ccd.class
+                  if class==skipmark or class==skipligature or class==skipbase or (markclass and class=="mark" and not markclass[char]) then
+                    start=start.next
+                  else
+                    break
+                  end
                 else
-                    done = true -- can be meant to be skipped
-                    if trace_contexts then
-                        logprocess("%s: skipping match",cref(kind,chainname))
-                    end
-                end
+                  break
+                end
+              end
+            end
+            local chainlookupname=chainlookups[i]
+            local chainlookup=lookuptable[chainlookupname] 
+            local cp=chainlookup and chainmores[chainlookup.type]
+            if cp then
+              local ok,n
+              head,start,ok,n=cp(head,start,last,kind,chainname,ck,lookuphash,chainlookup,chainlookupname,i,sequence)
+              if ok then
+                done=true
+                i=i+(n or 1)
+              else
+                i=i+1
+              end
+            else
+              i=i+1
             end
+            start=start.next
+          until i>nofchainlookups
         end
+      else
+        local replacements=ck[7]
+        if replacements then
+          head,start,done=chainprocs.reversesub(head,start,last,kind,chainname,ck,lookuphash,replacements) 
+        else
+          done=true 
+          if trace_contexts then
+            logprocess("%s: skipping match",cref(kind,chainname))
+          end
+        end
+      end
     end
-    return head, start, done
+  end
+  return head,start,done
 end
-
--- Because we want to keep this elsewhere (an because speed is less an issue) we
--- pass the font id so that the verbose variant can access the relevant helper tables.
-
-local verbose_handle_contextchain = function(font,...)
-    logwarning("no verbose handler installed, reverting to 'normal'")
-    otf.setcontextchain()
-    return normal_handle_contextchain(...)
+local verbose_handle_contextchain=function(font,...)
+  logwarning("no verbose handler installed, reverting to 'normal'")
+  otf.setcontextchain()
+  return normal_handle_contextchain(...)
 end
-
-otf.chainhandlers = {
-    normal  = normal_handle_contextchain,
-    verbose = verbose_handle_contextchain,
+otf.chainhandlers={
+  normal=normal_handle_contextchain,
+  verbose=verbose_handle_contextchain,
 }
-
 function otf.setcontextchain(method)
-    if not method or method == "normal" or not otf.chainhandlers[method] then
-        if handlers.contextchain then -- no need for a message while making the format
-            logwarning("installing normal contextchain handler")
-        end
-        handlers.contextchain = normal_handle_contextchain
-    else
-        logwarning("installing contextchain handler '%s'",method)
-        local handler = otf.chainhandlers[method]
-        handlers.contextchain = function(...)
-            return handler(currentfont,...) -- hm, get rid of ...
-        end
-    end
-    handlers.gsub_context             = handlers.contextchain
-    handlers.gsub_contextchain        = handlers.contextchain
-    handlers.gsub_reversecontextchain = handlers.contextchain
-    handlers.gpos_contextchain        = handlers.contextchain
-    handlers.gpos_context             = handlers.contextchain
+  if not method or method=="normal" or not otf.chainhandlers[method] then
+    if handlers.contextchain then 
+      logwarning("installing normal contextchain handler")
+    end
+    handlers.contextchain=normal_handle_contextchain
+  else
+    logwarning("installing contextchain handler '%s'",method)
+    local handler=otf.chainhandlers[method]
+    handlers.contextchain=function(...)
+      return handler(currentfont,...) 
+    end
+  end
+  handlers.gsub_context=handlers.contextchain
+  handlers.gsub_contextchain=handlers.contextchain
+  handlers.gsub_reversecontextchain=handlers.contextchain
+  handlers.gpos_contextchain=handlers.contextchain
+  handlers.gpos_context=handlers.contextchain
 end
-
 otf.setcontextchain()
-
-local missing = { } -- we only report once
-
+local missing={} 
 local function logprocess(...)
-    if trace_steps then
-        registermessage(...)
-    end
-    report_process(...)
+  if trace_steps then
+    registermessage(...)
+  end
+  report_process(...)
 end
-
-local logwarning = report_process
-
+local logwarning=report_process
 local function report_missing_cache(typ,lookup)
-    local f = missing[currentfont] if not f then f = { } missing[currentfont] = f end
-    local t = f[typ]               if not t then t = { } f[typ]               = t end
-    if not t[lookup] then
-        t[lookup] = true
-        logwarning("missing cache for lookup %s of type %s in font %s (%s)",lookup,typ,currentfont,tfmdata.properties.fullname)
-    end
-end
-
-local resolved = { } -- we only resolve a font,script,language pair once
-
--- todo: pass all these 'locals' in a table
-
-local lookuphashes = { }
-
-setmetatableindex(lookuphashes, function(t,font)
-    local lookuphash = fontdata[font].resources.lookuphash
-    if not lookuphash or not next(lookuphash) then
-        lookuphash = false
-    end
-    t[font] = lookuphash
-    return lookuphash
+  local f=missing[currentfont] if not f then f={} missing[currentfont]=f end
+  local t=f[typ]        if not t then t={} f[typ]=t end
+  if not t[lookup] then
+    t[lookup]=true
+    logwarning("missing cache for lookup %s of type %s in font %s (%s)",lookup,typ,currentfont,tfmdata.properties.fullname)
+  end
+end
+local resolved={}
+local lookuphashes={}
+setmetatableindex(lookuphashes,function(t,font)
+  local lookuphash=fontdata[font].resources.lookuphash
+  if not lookuphash or not next(lookuphash) then
+    lookuphash=false
+  end
+  t[font]=lookuphash
+  return lookuphash
 end)
-
--- fonts.hashes.lookups = lookuphashes
-
-local autofeatures = fonts.analyzers.features -- was: constants
-
+local autofeatures=fonts.analyzers.features 
 local function initialize(sequence,script,language,enabled)
-    local features = sequence.features
-    if features then
-        for kind, scripts in next, features do
-            local valid = enabled[kind]
-            if valid then
-                local languages = scripts[script] or scripts[wildcard]
-                if languages and (languages[language] or languages[wildcard]) then
-                    return { valid, autofeatures[kind] or false, sequence.chain or 0, kind, sequence }
-                end
-            end
-        end
-    end
-    return false
-end
-
-function otf.dataset(tfmdata,font) -- generic variant, overloaded in context
-    local shared     = tfmdata.shared
-    local properties = tfmdata.properties
-    local language   = properties.language or "dflt"
-    local script     = properties.script   or "dflt"
-    local enabled    = shared.features
-    local res = resolved[font]
-    if not res then
-        res = { }
-        resolved[font] = res
-    end
-    local rs = res[script]
-    if not rs then
-        rs = { }
-        res[script] = rs
-    end
-    local rl = rs[language]
-    if not rl then
-        rl = {
-            -- indexed but we can also add specific data by key
-        }
-        rs[language] = rl
-        local sequences = tfmdata.resources.sequences
-        setmetatableindex(rl, function(t,k)
-            if type(k) == "number" then
-                local v = enabled and initialize(sequences[k],script,language,enabled)
-                t[k] = v
-                return v
-            end
-        end)
-    end
-    return rl
+  local features=sequence.features
+  if features then
+    for kind,scripts in next,features do
+      local valid=enabled[kind]
+      if valid then
+        local languages=scripts[script] or scripts[wildcard]
+        if languages and (languages[language] or languages[wildcard]) then
+          return { valid,autofeatures[kind] or false,sequence.chain or 0,kind,sequence }
+        end
+      end
+    end
+  end
+  return false
+end
+function otf.dataset(tfmdata,font) 
+  local shared=tfmdata.shared
+  local properties=tfmdata.properties
+  local language=properties.language or "dflt"
+  local script=properties.script  or "dflt"
+  local enabled=shared.features
+  local res=resolved[font]
+  if not res then
+    res={}
+    resolved[font]=res
+  end
+  local rs=res[script]
+  if not rs then
+    rs={}
+    res[script]=rs
+  end
+  local rl=rs[language]
+  if not rl then
+    rl={
+    }
+    rs[language]=rl
+    local sequences=tfmdata.resources.sequences
+    setmetatableindex(rl,function(t,k)
+      if type(k)=="number" then
+        local v=enabled and initialize(sequences[k],script,language,enabled)
+        t[k]=v
+        return v
+      end
+    end)
+  end
+  return rl
 end
-
--- elseif id == glue_code then
---     if p[5] then -- chain
---         local pc = pp[32]
---         if pc then
---             start, ok = start, false -- p[1](start,kind,p[2],pc,p[3],p[4])
---             if ok then
---                 done = true
---             end
---             if start then start = start.next end
---         else
---             start = start.next
---         end
---     else
---         start = start.next
---     end
-
--- there will be a new direction parser (pre-parsed etc)
-
 local function featuresprocessor(head,font,attr)
-
-    local lookuphash = lookuphashes[font] -- we can also check sequences here
-
-    if not lookuphash then
-        return head, false
-    end
-
-    if trace_steps then
-        checkstep(head)
-    end
-
-    tfmdata                = fontdata[font]
-    descriptions           = tfmdata.descriptions
-    characters             = tfmdata.characters
-    resources              = tfmdata.resources
-
-    marks                  = resources.marks
-    anchorlookups          = resources.lookup_to_anchor
-    lookuptable            = resources.lookups
-    lookuptypes            = resources.lookuptypes
-
-    currentfont            = font
-    rlmode                 = 0
-
-    local sequences        = resources.sequences
-    local done             = false
-    local datasets         = otf.dataset(tfmdata,font,attr)
-
-    local dirstack = { } -- could move outside function
-
-    -- We could work on sub start-stop ranges instead but I wonder if there is that
-    -- much speed gain (experiments showed that it made not much sense) and we need
-    -- to keep track of directions anyway. Also at some point I want to play with
-    -- font interactions and then we do need the full sweeps.
-
-    -- Keeping track of the headnode is needed for devanagari (I generalized it a bit
-    -- so that multiple cases are also covered.)
-
-    for s=1,#sequences do
-        local dataset = datasets[s]
-        if dataset then
-            featurevalue = dataset[1] -- todo: pass to function instead of using a global
-            if featurevalue then
-                local sequence  = sequences[s] -- also dataset[5]
-                local rlparmode = 0
-                local topstack  = 0
-                local success   = false
-                local attribute = dataset[2]
-                local chain     = dataset[3] -- sequence.chain or 0
-                local typ       = sequence.type
-                local subtables = sequence.subtables
-                if chain < 0 then
-                    -- this is a limited case, no special treatments like 'init' etc
-                    local handler = handlers[typ]
-                    -- we need to get rid of this slide! probably no longer needed in latest luatex
-                    local start = find_node_tail(head) -- slow (we can store tail because there's always a skip at the end): todo
-                    while start do
-                        local id = start.id
-                        if id == glyph_code then
-                            if start.font == font and start.subtype<256 then
-                                local a = start[0]
-                                if a then
-                                    a = a == attr
-                                else
-                                    a = true
-                                end
-                                if a then
-                                    for i=1,#subtables do
-                                        local lookupname = subtables[i]
-                                        local lookupcache = lookuphash[lookupname]
-                                        if lookupcache then
-                                            local lookupmatch = lookupcache[start.char]
-                                            if lookupmatch then
-                                                head, start, success = handler(head,start,dataset[4],lookupname,lookupmatch,sequence,lookuphash,i)
-                                                if success then
-                                                    break
-                                                end
-                                            end
-                                        else
-                                            report_missing_cache(typ,lookupname)
-                                        end
-                                    end
-                                    if start then start = start.prev end
-                                else
-                                    start = start.prev
-                                end
-                            else
-                                start = start.prev
-                            end
-                        else
-                            start = start.prev
-                        end
-                    end
+  local lookuphash=lookuphashes[font] 
+  if not lookuphash then
+    return head,false
+  end
+  if trace_steps then
+    checkstep(head)
+  end
+  tfmdata=fontdata[font]
+  descriptions=tfmdata.descriptions
+  characters=tfmdata.characters
+  resources=tfmdata.resources
+  marks=resources.marks
+  anchorlookups=resources.lookup_to_anchor
+  lookuptable=resources.lookups
+  lookuptypes=resources.lookuptypes
+  currentfont=font
+  rlmode=0
+  local sequences=resources.sequences
+  local done=false
+  local datasets=otf.dataset(tfmdata,font,attr)
+  local dirstack={}
+  for s=1,#sequences do
+    local dataset=datasets[s]
+    if dataset then
+      featurevalue=dataset[1] 
+      if featurevalue then
+        local sequence=sequences[s] 
+        local rlparmode=0
+        local topstack=0
+        local success=false
+        local attribute=dataset[2]
+        local chain=dataset[3] 
+        local typ=sequence.type
+        local subtables=sequence.subtables
+        if chain<0 then
+          local handler=handlers[typ]
+          local start=find_node_tail(head) 
+          while start do
+            local id=start.id
+            if id==glyph_code then
+              if start.font==font and start.subtype<256 then
+                local a=start[0]
+                if a then
+                  a=a==attr
                 else
-                    local handler = handlers[typ]
-                    local ns = #subtables
-                    local start = head -- local ?
-                    rlmode = 0 -- to be checked ?
-                    if ns == 1 then -- happens often
-                        local lookupname = subtables[1]
-                        local lookupcache = lookuphash[lookupname]
-                        if not lookupcache then -- also check for empty cache
-                            report_missing_cache(typ,lookupname)
-                        else
-                            while start do
-                                local id = start.id
-                                if id == glyph_code then
-                                    if start.font == font and start.subtype<256 then
-                                        local a = start[0]
-                                        if a then
-                                            a = (a == attr) and (not attribute or start[a_state] == attribute)
-                                        else
-                                            a = not attribute or start[a_state] == attribute
-                                        end
-                                        if a then
-                                            local lookupmatch = lookupcache[start.char]
-                                            if lookupmatch then
-                                                -- sequence kan weg
-                                                local ok
-                                                head, start, ok = handler(head,start,dataset[4],lookupname,lookupmatch,sequence,lookuphash,1)
-                                                if ok then
-                                                    success = true
-                                                end
-                                            end
-                                            if start then start = start.next end
-                                        else
-                                            start = start.next
-                                        end
-                                    else
-                                        start = start.next
-                                    end
-                                elseif id == whatsit_code then -- will be function
-                                    local subtype = start.subtype
-                                    if subtype == dir_code then
-                                        local dir = start.dir
-                                        if     dir == "+TRT" or dir == "+TLT" then
-                                            topstack = topstack + 1
-                                            dirstack[topstack] = dir
-                                        elseif dir == "-TRT" or dir == "-TLT" then
-                                            topstack = topstack - 1
-                                        end
-                                        local newdir = dirstack[topstack]
-                                        if newdir == "+TRT" then
-                                            rlmode = -1
-                                        elseif newdir == "+TLT" then
-                                            rlmode = 1
-                                        else
-                                            rlmode = rlparmode
-                                        end
-                                        if trace_directions then
-                                            report_process("directions after txtdir %s: txtdir=%s:%s, parmode=%s, txtmode=%s",dir,topstack,newdir or "unset",rlparmode,rlmode)
-                                        end
-                                    elseif subtype == localpar_code then
-                                        local dir = start.dir
-                                        if dir == "TRT" then
-                                            rlparmode = -1
-                                        elseif dir == "TLT" then
-                                            rlparmode = 1
-                                        else
-                                            rlparmode = 0
-                                        end
-                                        rlmode = rlparmode
-                                        if trace_directions then
-                                            report_process("directions after pardir %s: parmode=%s, txtmode=%s",dir,rlparmode,rlmode)
-                                        end
-                                    end
-                                    start = start.next
-                                else
-                                    start = start.next
-                                end
-                            end
+                  a=true
+                end
+                if a then
+                  for i=1,#subtables do
+                    local lookupname=subtables[i]
+                    local lookupcache=lookuphash[lookupname]
+                    if lookupcache then
+                      local lookupmatch=lookupcache[start.char]
+                      if lookupmatch then
+                        head,start,success=handler(head,start,dataset[4],lookupname,lookupmatch,sequence,lookuphash,i)
+                        if success then
+                          break
                         end
+                      end
                     else
-                        while start do
-                            local id = start.id
-                            if id == glyph_code then
-                                if start.font == font and start.subtype<256 then
-                                    local a = start[0]
-                                    if a then
-                                        a = (a == attr) and (not attribute or start[a_state] == attribute)
-                                    else
-                                        a = not attribute or start[a_state] == attribute
-                                    end
-                                    if a then
-                                        for i=1,ns do
-                                            local lookupname = subtables[i]
-                                            local lookupcache = lookuphash[lookupname]
-                                            if lookupcache then
-                                                local lookupmatch = lookupcache[start.char]
-                                                if lookupmatch then
-                                                    -- we could move all code inline but that makes things even more unreadable
-                                                    local ok
-                                                    head, start, ok = handler(head,start,dataset[4],lookupname,lookupmatch,sequence,lookuphash,i)
-                                                    if ok then
-                                                        success = true
-                                                        break
-                                                    end
-                                                end
-                                            else
-                                                report_missing_cache(typ,lookupname)
-                                            end
-                                        end
-                                        if start then start = start.next end
-                                    else
-                                        start = start.next
-                                    end
-                                else
-                                    start = start.next
-                                end
-                            elseif id == whatsit_code then
-                                local subtype = start.subtype
-                                if subtype == dir_code then
-                                    local dir = start.dir
-                                    if     dir == "+TRT" or dir == "+TLT" then
-                                        topstack = topstack + 1
-                                        dirstack[topstack] = dir
-                                    elseif dir == "-TRT" or dir == "-TLT" then
-                                        topstack = topstack - 1
-                                    end
-                                    local newdir = dirstack[topstack]
-                                    if newdir == "+TRT" then
-                                        rlmode = -1
-                                    elseif newdir == "+TLT" then
-                                        rlmode = 1
-                                    else
-                                        rlmode = rlparmode
-                                    end
-                                    if trace_directions then
-                                        report_process("directions after txtdir %s: txtdir=%s:%s, parmode=%s, txtmode=%s",dir,topstack,newdir or "unset",rlparmode,rlmode)
-                                    end
-                                elseif subtype == localpar_code then
-                                    local dir = start.dir
-                                    if dir == "TRT" then
-                                        rlparmode = -1
-                                    elseif dir == "TLT" then
-                                        rlparmode = 1
-                                    else
-                                        rlparmode = 0
-                                    end
-                                    rlmode = rlparmode
-                                    if trace_directions then
-                                        report_process("directions after pardir %s: parmode=%s, txtmode=%s",dir,rlparmode,rlmode)
-                                    end
-                                end
-                                start = start.next
-                            else
-                                start = start.next
-                            end
-                        end
+                      report_missing_cache(typ,lookupname)
                     end
+                  end
+                  if start then start=start.prev end
+                else
+                  start=start.prev
                 end
-                if success then
-                    done = true
-                end
-                if trace_steps then -- ?
-                    registerstep(head)
-                end
-            end
-        end
-    end
-    return head, done
-end
-
-local function generic(lookupdata,lookupname,unicode,lookuphash)
-    local target = lookuphash[lookupname]
-    if target then
-        target[unicode] = lookupdata
-    else
-        lookuphash[lookupname] = { [unicode] = lookupdata }
-    end
-end
-
-local action = {
-
-    substitution = generic,
-    multiple     = generic,
-    alternate    = generic,
-    position     = generic,
-
-    ligature = function(lookupdata,lookupname,unicode,lookuphash)
-        local target = lookuphash[lookupname]
-        if not target then
-            target = { }
-            lookuphash[lookupname] = target
-        end
-        for i=1,#lookupdata do
-            local li = lookupdata[i]
-            local tu = target[li]
-            if not tu then
-                tu = { }
-                target[li] = tu
+              else
+                start=start.prev
+              end
+            else
+              start=start.prev
             end
-            target = tu
-        end
-        target.ligature = unicode
-    end,
-
-    pair = function(lookupdata,lookupname,unicode,lookuphash)
-        local target = lookuphash[lookupname]
-        if not target then
-            target = { }
-            lookuphash[lookupname] = target
-        end
-        local others = target[unicode]
-        local paired = lookupdata[1]
-        if others then
-            others[paired] = lookupdata
+          end
         else
-            others = { [paired] = lookupdata }
-            target[unicode] = others
-        end
-    end,
-
-}
-
-local function prepare_lookups(tfmdata)
-
-    local rawdata          = tfmdata.shared.rawdata
-    local resources        = rawdata.resources
-    local lookuphash       = resources.lookuphash
-    local anchor_to_lookup = resources.anchor_to_lookup
-    local lookup_to_anchor = resources.lookup_to_anchor
-    local lookuptypes      = resources.lookuptypes
-    local characters       = tfmdata.characters
-    local descriptions     = tfmdata.descriptions
-
-    -- we cannot free the entries in the descriptions as sometimes we access
-    -- then directly (for instance anchors) ... selectively freeing does save
-    -- much memory as it's only a reference to a table and the slot in the
-    -- description hash is not freed anyway
-
-    for unicode, character in next, characters do -- we cannot loop over descriptions !
-
-        local description = descriptions[unicode]
-
-        if description then
-
-            local lookups = description.slookups
-            if lookups then
-                for lookupname, lookupdata in next, lookups do
-                    action[lookuptypes[lookupname]](lookupdata,lookupname,unicode,lookuphash)
-                end
-            end
-
-            local lookups = description.mlookups
-            if lookups then
-                for lookupname, lookuplist in next, lookups do
-                    local lookuptype = lookuptypes[lookupname]
-                    for l=1,#lookuplist do
-                        local lookupdata = lookuplist[l]
-                        action[lookuptype](lookupdata,lookupname,unicode,lookuphash)
+          local handler=handlers[typ]
+          local ns=#subtables
+          local start=head 
+          rlmode=0 
+          if ns==1 then 
+            local lookupname=subtables[1]
+            local lookupcache=lookuphash[lookupname]
+            if not lookupcache then 
+              report_missing_cache(typ,lookupname)
+            else
+              while start do
+                local id=start.id
+                if id==glyph_code then
+                  if start.font==font and start.subtype<256 then
+                    local a=start[0]
+                    if a then
+                      a=(a==attr) and (not attribute or start[a_state]==attribute)
+                    else
+                      a=not attribute or start[a_state]==attribute
+                    end
+                    if a then
+                      local lookupmatch=lookupcache[start.char]
+                      if lookupmatch then
+                        local ok
+                        head,start,ok=handler(head,start,dataset[4],lookupname,lookupmatch,sequence,lookuphash,1)
+                        if ok then
+                          success=true
+                        end
+                      end
+                      if start then start=start.next end
+                    else
+                      start=start.next
+                    end
+elseif id==math_code then
+  start=endofmath(start).next
+                  else
+                    start=start.next
+                  end
+                elseif id==whatsit_code then 
+                  local subtype=start.subtype
+                  if subtype==dir_code then
+                    local dir=start.dir
+                    if   dir=="+TRT" or dir=="+TLT" then
+                      topstack=topstack+1
+                      dirstack[topstack]=dir
+                    elseif dir=="-TRT" or dir=="-TLT" then
+                      topstack=topstack-1
+                    end
+                    local newdir=dirstack[topstack]
+                    if newdir=="+TRT" then
+                      rlmode=-1
+                    elseif newdir=="+TLT" then
+                      rlmode=1
+                    else
+                      rlmode=rlparmode
                     end
-                end
-            end
-
-            local list = description.kerns
-            if list then
-                for lookup, krn in next, list do  -- ref to glyph, saves lookup
-                    local target = lookuphash[lookup]
-                    if target then
-                        target[unicode] = krn
+                    if trace_directions then
+                      report_process("directions after txtdir %s: txtdir=%s:%s, parmode=%s, txtmode=%s",dir,topstack,newdir or "unset",rlparmode,rlmode)
+                    end
+                  elseif subtype==localpar_code then
+                    local dir=start.dir
+                    if dir=="TRT" then
+                      rlparmode=-1
+                    elseif dir=="TLT" then
+                      rlparmode=1
                     else
-                        lookuphash[lookup] = { [unicode] = krn }
+                      rlparmode=0
                     end
-                end
-            end
-
-            local list = description.anchors
-            if list then
-                for typ, anchors in next, list do -- types
-                    if typ == "mark" or typ == "cexit" then -- or entry?
-                        for name, anchor in next, anchors do
-                            local lookups = anchor_to_lookup[name]
-                            if lookups then
-                                for lookup, _ in next, lookups do
-                                    local target = lookuphash[lookup]
-                                    if target then
-                                        target[unicode] = anchors
-                                    else
-                                        lookuphash[lookup] = { [unicode] = anchors }
-                                    end
-                                end
-                            end
-                        end
+                    rlmode=rlparmode
+                    if trace_directions then
+                      report_process("directions after pardir %s: parmode=%s, txtmode=%s",dir,rlparmode,rlmode)
                     end
-                end
-            end
-
-        end
-
-    end
-
+                  end
+                  start=start.next
+elseif id==math_code then
+  start=endofmath(start).next
+                else
+                  start=start.next
+                end
+              end
+            end
+          else
+            while start do
+              local id=start.id
+              if id==glyph_code then
+                if start.font==font and start.subtype<256 then
+                  local a=start[0]
+                  if a then
+                    a=(a==attr) and (not attribute or start[a_state]==attribute)
+                  else
+                    a=not attribute or start[a_state]==attribute
+                  end
+                  if a then
+                    for i=1,ns do
+                      local lookupname=subtables[i]
+                      local lookupcache=lookuphash[lookupname]
+                      if lookupcache then
+                        local lookupmatch=lookupcache[start.char]
+                        if lookupmatch then
+                          local ok
+                          head,start,ok=handler(head,start,dataset[4],lookupname,lookupmatch,sequence,lookuphash,i)
+                          if ok then
+                            success=true
+                            break
+                          end
+                        end
+                      else
+                        report_missing_cache(typ,lookupname)
+                      end
+                    end
+                    if start then start=start.next end
+                  else
+                    start=start.next
+                  end
+                else
+                  start=start.next
+                end
+              elseif id==whatsit_code then
+                local subtype=start.subtype
+                if subtype==dir_code then
+                  local dir=start.dir
+                  if   dir=="+TRT" or dir=="+TLT" then
+                    topstack=topstack+1
+                    dirstack[topstack]=dir
+                  elseif dir=="-TRT" or dir=="-TLT" then
+                    topstack=topstack-1
+                  end
+                  local newdir=dirstack[topstack]
+                  if newdir=="+TRT" then
+                    rlmode=-1
+                  elseif newdir=="+TLT" then
+                    rlmode=1
+                  else
+                    rlmode=rlparmode
+                  end
+                  if trace_directions then
+                    report_process("directions after txtdir %s: txtdir=%s:%s, parmode=%s, txtmode=%s",dir,topstack,newdir or "unset",rlparmode,rlmode)
+                  end
+                elseif subtype==localpar_code then
+                  local dir=start.dir
+                  if dir=="TRT" then
+                    rlparmode=-1
+                  elseif dir=="TLT" then
+                    rlparmode=1
+                  else
+                    rlparmode=0
+                  end
+                  rlmode=rlparmode
+                  if trace_directions then
+                    report_process("directions after pardir %s: parmode=%s, txtmode=%s",dir,rlparmode,rlmode)
+                  end
+                end
+                start=start.next
+elseif id==math_code then
+  start=endofmath(start).next
+              else
+                start=start.next
+              end
+            end
+          end
+        end
+        if success then
+          done=true
+        end
+        if trace_steps then 
+          registerstep(head)
+        end
+      end
+    end
+  end
+  return head,done
 end
-
-local function split(replacement,original)
-    local result = { }
-    for i=1,#replacement do
-        result[original[i]] = replacement[i]
+local function generic(lookupdata,lookupname,unicode,lookuphash)
+  local target=lookuphash[lookupname]
+  if target then
+    target[unicode]=lookupdata
+  else
+    lookuphash[lookupname]={ [unicode]=lookupdata }
+  end
+end
+local action={
+  substitution=generic,
+  multiple=generic,
+  alternate=generic,
+  position=generic,
+  ligature=function(lookupdata,lookupname,unicode,lookuphash)
+    local target=lookuphash[lookupname]
+    if not target then
+      target={}
+      lookuphash[lookupname]=target
+    end
+    for i=1,#lookupdata do
+      local li=lookupdata[i]
+      local tu=target[li]
+      if not tu then
+        tu={}
+        target[li]=tu
+      end
+      target=tu
+    end
+    target.ligature=unicode
+  end,
+  pair=function(lookupdata,lookupname,unicode,lookuphash)
+    local target=lookuphash[lookupname]
+    if not target then
+      target={}
+      lookuphash[lookupname]=target
     end
-    return result
+    local others=target[unicode]
+    local paired=lookupdata[1]
+    if others then
+      others[paired]=lookupdata
+    else
+      others={ [paired]=lookupdata }
+      target[unicode]=others
+    end
+  end,
+}
+local function prepare_lookups(tfmdata)
+  local rawdata=tfmdata.shared.rawdata
+  local resources=rawdata.resources
+  local lookuphash=resources.lookuphash
+  local anchor_to_lookup=resources.anchor_to_lookup
+  local lookup_to_anchor=resources.lookup_to_anchor
+  local lookuptypes=resources.lookuptypes
+  local characters=tfmdata.characters
+  local descriptions=tfmdata.descriptions
+  for unicode,character in next,characters do 
+    local description=descriptions[unicode]
+    if description then
+      local lookups=description.slookups
+      if lookups then
+        for lookupname,lookupdata in next,lookups do
+          action[lookuptypes[lookupname]](lookupdata,lookupname,unicode,lookuphash)
+        end
+      end
+      local lookups=description.mlookups
+      if lookups then
+        for lookupname,lookuplist in next,lookups do
+          local lookuptype=lookuptypes[lookupname]
+          for l=1,#lookuplist do
+            local lookupdata=lookuplist[l]
+            action[lookuptype](lookupdata,lookupname,unicode,lookuphash)
+          end
+        end
+      end
+      local list=description.kerns
+      if list then
+        for lookup,krn in next,list do 
+          local target=lookuphash[lookup]
+          if target then
+            target[unicode]=krn
+          else
+            lookuphash[lookup]={ [unicode]=krn }
+          end
+        end
+      end
+      local list=description.anchors
+      if list then
+        for typ,anchors in next,list do 
+          if typ=="mark" or typ=="cexit" then 
+            for name,anchor in next,anchors do
+              local lookups=anchor_to_lookup[name]
+              if lookups then
+                for lookup,_ in next,lookups do
+                  local target=lookuphash[lookup]
+                  if target then
+                    target[unicode]=anchors
+                  else
+                    lookuphash[lookup]={ [unicode]=anchors }
+                  end
+                end
+              end
+            end
+          end
+        end
+      end
+    end
+  end
 end
-
-local valid = {
-    coverage        = { chainsub = true, chainpos = true, contextsub = true },
-    reversecoverage = { reversesub = true },
-    glyphs          = { chainsub = true, chainpos = true },
+local function split(replacement,original)
+  local result={}
+  for i=1,#replacement do
+    result[original[i]]=replacement[i]
+  end
+  return result
+end
+local valid={
+  coverage={ chainsub=true,chainpos=true,contextsub=true },
+  reversecoverage={ reversesub=true },
+  glyphs={ chainsub=true,chainpos=true },
 }
-
 local function prepare_contextchains(tfmdata)
-    local rawdata    = tfmdata.shared.rawdata
-    local resources  = rawdata.resources
-    local lookuphash = resources.lookuphash
-    local lookups    = rawdata.lookups
-    if lookups then
-        for lookupname, lookupdata in next, rawdata.lookups do
-            local lookuptype = lookupdata.type
-            if lookuptype then
-                local rules = lookupdata.rules
-                if rules then
-                    local format = lookupdata.format
-                    local validformat = valid[format]
-                    if not validformat then
-                        report_prepare("unsupported format %s",format)
-                    elseif not validformat[lookuptype] then
-                        -- todo: dejavu-serif has one (but i need to see what use it has)
-                        report_prepare("unsupported %s %s for %s",format,lookuptype,lookupname)
-                    else
-                        local contexts = lookuphash[lookupname]
-                        if not contexts then
-                            contexts = { }
-                            lookuphash[lookupname] = contexts
-                        end
-                        local t, nt = { }, 0
-                        for nofrules=1,#rules do
-                            local rule         = rules[nofrules]
-                            local current      = rule.current
-                            local before       = rule.before
-                            local after        = rule.after
-                            local replacements = rule.replacements
-                            local sequence     = { }
-                            local nofsequences = 0
-                            -- Wventually we can store start, stop and sequence in the cached file
-                            -- but then less sharing takes place so best not do that without a lot
-                            -- of profiling so let's forget about it.
-                            if before then
-                                for n=1,#before do
-                                    nofsequences = nofsequences + 1
-                                    sequence[nofsequences] = before[n]
-                                end
-                            end
-                            local start = nofsequences + 1
-                            for n=1,#current do
-                                nofsequences = nofsequences + 1
-                                sequence[nofsequences] = current[n]
-                            end
-                            local stop = nofsequences
-                            if after then
-                                for n=1,#after do
-                                    nofsequences = nofsequences + 1
-                                    sequence[nofsequences] = after[n]
-                                end
-                            end
-                            if sequence[1] then
-                                -- Replacements only happen with reverse lookups as they are single only. We
-                                -- could pack them into current (replacement value instead of true) and then
-                                -- use sequence[start] instead but it's somewhat ugly.
-                                nt = nt + 1
-                                t[nt] = { nofrules, lookuptype, sequence, start, stop, rule.lookups, replacements }
-                                for unic, _  in next, sequence[start] do
-                                    local cu = contexts[unic]
-                                    if not cu then
-                                        contexts[unic] = t
-                                    end
-                                end
-                            end
-                        end
-                    end
-                else
-                    -- no rules
-                end
-            else
-                report_prepare("missing lookuptype for %s",lookupname)
-            end
+  local rawdata=tfmdata.shared.rawdata
+  local resources=rawdata.resources
+  local lookuphash=resources.lookuphash
+  local lookups=rawdata.lookups
+  if lookups then
+    for lookupname,lookupdata in next,rawdata.lookups do
+      local lookuptype=lookupdata.type
+      if lookuptype then
+        local rules=lookupdata.rules
+        if rules then
+          local format=lookupdata.format
+          local validformat=valid[format]
+          if not validformat then
+            report_prepare("unsupported format %s",format)
+          elseif not validformat[lookuptype] then
+            report_prepare("unsupported %s %s for %s",format,lookuptype,lookupname)
+          else
+            local contexts=lookuphash[lookupname]
+            if not contexts then
+              contexts={}
+              lookuphash[lookupname]=contexts
+            end
+            local t,nt={},0
+            for nofrules=1,#rules do
+              local rule=rules[nofrules]
+              local current=rule.current
+              local before=rule.before
+              local after=rule.after
+              local replacements=rule.replacements
+              local sequence={}
+              local nofsequences=0
+              if before then
+                for n=1,#before do
+                  nofsequences=nofsequences+1
+                  sequence[nofsequences]=before[n]
+                end
+              end
+              local start=nofsequences+1
+              for n=1,#current do
+                nofsequences=nofsequences+1
+                sequence[nofsequences]=current[n]
+              end
+              local stop=nofsequences
+              if after then
+                for n=1,#after do
+                  nofsequences=nofsequences+1
+                  sequence[nofsequences]=after[n]
+                end
+              end
+              if sequence[1] then
+                nt=nt+1
+                t[nt]={ nofrules,lookuptype,sequence,start,stop,rule.lookups,replacements }
+                for unic,_ in next,sequence[start] do
+                  local cu=contexts[unic]
+                  if not cu then
+                    contexts[unic]=t
+                  end
+                end
+              end
+            end
+          end
+        else
         end
+      else
+        report_prepare("missing lookuptype for %s",lookupname)
+      end
     end
+  end
 end
-
--- we can consider lookuphash == false (initialized but empty) vs lookuphash == table
-
 local function featuresinitializer(tfmdata,value)
-    if true then -- value then
-        -- beware we need to use the topmost properties table
-        local rawdata    = tfmdata.shared.rawdata
-        local properties = rawdata.properties
-        if not properties.initialized then
-            local starttime = trace_preparing and os.clock()
-            local resources = rawdata.resources
-            resources.lookuphash = resources.lookuphash or { }
-            prepare_contextchains(tfmdata)
-            prepare_lookups(tfmdata)
-            properties.initialized = true
-            if trace_preparing then
-                report_prepare("preparation time is %0.3f seconds for %s",os.clock()-starttime,tfmdata.properties.fullname or "?")
-            end
-        end
-    end
+  if true then
+    local rawdata=tfmdata.shared.rawdata
+    local properties=rawdata.properties
+    if not properties.initialized then
+      local starttime=trace_preparing and os.clock()
+      local resources=rawdata.resources
+      resources.lookuphash=resources.lookuphash or {}
+      prepare_contextchains(tfmdata)
+      prepare_lookups(tfmdata)
+      properties.initialized=true
+      if trace_preparing then
+        report_prepare("preparation time is %0.3f seconds for %s",os.clock()-starttime,tfmdata.properties.fullname or "?")
+      end
+    end
+  end
 end
-
 registerotffeature {
-    name         = "features",
-    description  = "features",
-    default      = true,
-    initializers = {
-        position = 1,
-        node     = featuresinitializer,
-    },
-    processors   = {
-        node     = featuresprocessor,
-    }
+  name="features",
+  description="features",
+  default=true,
+  initializers={
+    position=1,
+    node=featuresinitializer,
+  },
+  processors={
+    node=featuresprocessor,
+  }
 }
-
--- This can be used for extra handlers, but should be used with care!
-
-otf.handlers = handlers
+otf.handlers=handlers
 
 end -- closure
 
 do -- begin closure to overcome local limits and interference
 
-if not modules then modules = { } end modules ['luatex-fonts-chr'] = {
-    version   = 1.001,
-    comment   = "companion to luatex-fonts.lua",
-    author    = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
-    copyright = "PRAGMA ADE / ConTeXt Development Team",
-    license   = "see context related readme files"
+if not modules then modules={} end modules ['luatex-fonts-lua']={
+  version=1.001,
+  comment="companion to luatex-*.tex",
+  author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+  copyright="PRAGMA ADE / ConTeXt Development Team",
+  license="see context related readme files"
 }
-
 if context then
-    texio.write_nl("fatal error: this module is not for context")
-    os.exit()
+  texio.write_nl("fatal error: this module is not for context")
+  os.exit()
 end
-
-characters            = characters or { }
-characters.categories = {
- [0x0300]="mn",
- [0x0301]="mn",
- [0x0302]="mn",
- [0x0303]="mn",
- [0x0304]="mn",
- [0x0305]="mn",
- [0x0306]="mn",
- [0x0307]="mn",
- [0x0308]="mn",
- [0x0309]="mn",
- [0x030A]="mn",
- [0x030B]="mn",
- [0x030C]="mn",
- [0x030D]="mn",
- [0x030E]="mn",
- [0x030F]="mn",
- [0x0310]="mn",
- [0x0311]="mn",
- [0x0312]="mn",
- [0x0313]="mn",
- [0x0314]="mn",
- [0x0315]="mn",
- [0x0316]="mn",
- [0x0317]="mn",
- [0x0318]="mn",
- [0x0319]="mn",
- [0x031A]="mn",
- [0x031B]="mn",
- [0x031C]="mn",
- [0x031D]="mn",
- [0x031E]="mn",
- [0x031F]="mn",
- [0x0320]="mn",
- [0x0321]="mn",
- [0x0322]="mn",
- [0x0323]="mn",
- [0x0324]="mn",
- [0x0325]="mn",
- [0x0326]="mn",
- [0x0327]="mn",
- [0x0328]="mn",
- [0x0329]="mn",
- [0x032A]="mn",
- [0x032B]="mn",
- [0x032C]="mn",
- [0x032D]="mn",
- [0x032E]="mn",
- [0x032F]="mn",
- [0x0330]="mn",
- [0x0331]="mn",
- [0x0332]="mn",
- [0x0333]="mn",
- [0x0334]="mn",
- [0x0335]="mn",
- [0x0336]="mn",
- [0x0337]="mn",
- [0x0338]="mn",
- [0x0339]="mn",
- [0x033A]="mn",
- [0x033B]="mn",
- [0x033C]="mn",
- [0x033D]="mn",
- [0x033E]="mn",
- [0x033F]="mn",
- [0x0340]="mn",
- [0x0341]="mn",
- [0x0342]="mn",
- [0x0343]="mn",
- [0x0344]="mn",
- [0x0345]="mn",
- [0x0346]="mn",
- [0x0347]="mn",
- [0x0348]="mn",
- [0x0349]="mn",
- [0x034A]="mn",
- [0x034B]="mn",
- [0x034C]="mn",
- [0x034D]="mn",
- [0x034E]="mn",
- [0x034F]="mn",
- [0x0350]="mn",
- [0x0351]="mn",
- [0x0352]="mn",
- [0x0353]="mn",
- [0x0354]="mn",
- [0x0355]="mn",
- [0x0356]="mn",
- [0x0357]="mn",
- [0x0358]="mn",
- [0x0359]="mn",
- [0x035A]="mn",
- [0x035B]="mn",
- [0x035C]="mn",
- [0x035D]="mn",
- [0x035E]="mn",
- [0x035F]="mn",
- [0x0360]="mn",
- [0x0361]="mn",
- [0x0362]="mn",
- [0x0363]="mn",
- [0x0364]="mn",
- [0x0365]="mn",
- [0x0366]="mn",
- [0x0367]="mn",
- [0x0368]="mn",
- [0x0369]="mn",
- [0x036A]="mn",
- [0x036B]="mn",
- [0x036C]="mn",
- [0x036D]="mn",
- [0x036E]="mn",
- [0x036F]="mn",
- [0x0483]="mn",
- [0x0484]="mn",
- [0x0485]="mn",
- [0x0486]="mn",
- [0x0591]="mn",
- [0x0592]="mn",
- [0x0593]="mn",
- [0x0594]="mn",
- [0x0595]="mn",
- [0x0596]="mn",
- [0x0597]="mn",
- [0x0598]="mn",
- [0x0599]="mn",
- [0x059A]="mn",
- [0x059B]="mn",
- [0x059C]="mn",
- [0x059D]="mn",
- [0x059E]="mn",
- [0x059F]="mn",
- [0x05A0]="mn",
- [0x05A1]="mn",
- [0x05A2]="mn",
- [0x05A3]="mn",
- [0x05A4]="mn",
- [0x05A5]="mn",
- [0x05A6]="mn",
- [0x05A7]="mn",
- [0x05A8]="mn",
- [0x05A9]="mn",
- [0x05AA]="mn",
- [0x05AB]="mn",
- [0x05AC]="mn",
- [0x05AD]="mn",
- [0x05AE]="mn",
- [0x05AF]="mn",
- [0x05B0]="mn",
- [0x05B1]="mn",
- [0x05B2]="mn",
- [0x05B3]="mn",
- [0x05B4]="mn",
- [0x05B5]="mn",
- [0x05B6]="mn",
- [0x05B7]="mn",
- [0x05B8]="mn",
- [0x05B9]="mn",
- [0x05BA]="mn",
- [0x05BB]="mn",
- [0x05BC]="mn",
- [0x05BD]="mn",
- [0x05BF]="mn",
- [0x05C1]="mn",
- [0x05C2]="mn",
- [0x05C4]="mn",
- [0x05C5]="mn",
- [0x05C7]="mn",
- [0x0610]="mn",
- [0x0611]="mn",
- [0x0612]="mn",
- [0x0613]="mn",
- [0x0614]="mn",
- [0x0615]="mn",
- [0x064B]="mn",
- [0x064C]="mn",
- [0x064D]="mn",
- [0x064E]="mn",
- [0x064F]="mn",
- [0x0650]="mn",
- [0x0651]="mn",
- [0x0652]="mn",
- [0x0653]="mn",
- [0x0654]="mn",
- [0x0655]="mn",
- [0x0656]="mn",
- [0x0657]="mn",
- [0x0658]="mn",
- [0x0659]="mn",
- [0x065A]="mn",
- [0x065B]="mn",
- [0x065C]="mn",
- [0x065D]="mn",
- [0x065E]="mn",
- [0x0670]="mn",
- [0x06D6]="mn",
- [0x06D7]="mn",
- [0x06D8]="mn",
- [0x06D9]="mn",
- [0x06DA]="mn",
- [0x06DB]="mn",
- [0x06DC]="mn",
- [0x06DF]="mn",
- [0x06E0]="mn",
- [0x06E1]="mn",
- [0x06E2]="mn",
- [0x06E3]="mn",
- [0x06E4]="mn",
- [0x06E7]="mn",
- [0x06E8]="mn",
- [0x06EA]="mn",
- [0x06EB]="mn",
- [0x06EC]="mn",
- [0x06ED]="mn",
- [0x0711]="mn",
- [0x0730]="mn",
- [0x0731]="mn",
- [0x0732]="mn",
- [0x0733]="mn",
- [0x0734]="mn",
- [0x0735]="mn",
- [0x0736]="mn",
- [0x0737]="mn",
- [0x0738]="mn",
- [0x0739]="mn",
- [0x073A]="mn",
- [0x073B]="mn",
- [0x073C]="mn",
- [0x073D]="mn",
- [0x073E]="mn",
- [0x073F]="mn",
- [0x0740]="mn",
- [0x0741]="mn",
- [0x0742]="mn",
- [0x0743]="mn",
- [0x0744]="mn",
- [0x0745]="mn",
- [0x0746]="mn",
- [0x0747]="mn",
- [0x0748]="mn",
- [0x0749]="mn",
- [0x074A]="mn",
- [0x07A6]="mn",
- [0x07A7]="mn",
- [0x07A8]="mn",
- [0x07A9]="mn",
- [0x07AA]="mn",
- [0x07AB]="mn",
- [0x07AC]="mn",
- [0x07AD]="mn",
- [0x07AE]="mn",
- [0x07AF]="mn",
- [0x07B0]="mn",
- [0x07EB]="mn",
- [0x07EC]="mn",
- [0x07ED]="mn",
- [0x07EE]="mn",
- [0x07EF]="mn",
- [0x07F0]="mn",
- [0x07F1]="mn",
- [0x07F2]="mn",
- [0x07F3]="mn",
- [0x0901]="mn",
- [0x0902]="mn",
- [0x093C]="mn",
- [0x0941]="mn",
- [0x0942]="mn",
- [0x0943]="mn",
- [0x0944]="mn",
- [0x0945]="mn",
- [0x0946]="mn",
- [0x0947]="mn",
- [0x0948]="mn",
- [0x094D]="mn",
- [0x0951]="mn",
- [0x0952]="mn",
- [0x0953]="mn",
- [0x0954]="mn",
- [0x0962]="mn",
- [0x0963]="mn",
- [0x0981]="mn",
- [0x09BC]="mn",
- [0x09C1]="mn",
- [0x09C2]="mn",
- [0x09C3]="mn",
- [0x09C4]="mn",
- [0x09CD]="mn",
- [0x09E2]="mn",
- [0x09E3]="mn",
- [0x0A01]="mn",
- [0x0A02]="mn",
- [0x0A3C]="mn",
- [0x0A41]="mn",
- [0x0A42]="mn",
- [0x0A47]="mn",
- [0x0A48]="mn",
- [0x0A4B]="mn",
- [0x0A4C]="mn",
- [0x0A4D]="mn",
- [0x0A70]="mn",
- [0x0A71]="mn",
- [0x0A81]="mn",
- [0x0A82]="mn",
- [0x0ABC]="mn",
- [0x0AC1]="mn",
- [0x0AC2]="mn",
- [0x0AC3]="mn",
- [0x0AC4]="mn",
- [0x0AC5]="mn",
- [0x0AC7]="mn",
- [0x0AC8]="mn",
- [0x0ACD]="mn",
- [0x0AE2]="mn",
- [0x0AE3]="mn",
- [0x0B01]="mn",
- [0x0B3C]="mn",
- [0x0B3F]="mn",
- [0x0B41]="mn",
- [0x0B42]="mn",
- [0x0B43]="mn",
- [0x0B4D]="mn",
- [0x0B56]="mn",
- [0x0B82]="mn",
- [0x0BC0]="mn",
- [0x0BCD]="mn",
- [0x0C3E]="mn",
- [0x0C3F]="mn",
- [0x0C40]="mn",
- [0x0C46]="mn",
- [0x0C47]="mn",
- [0x0C48]="mn",
- [0x0C4A]="mn",
- [0x0C4B]="mn",
- [0x0C4C]="mn",
- [0x0C4D]="mn",
- [0x0C55]="mn",
- [0x0C56]="mn",
- [0x0CBC]="mn",
- [0x0CBF]="mn",
- [0x0CC6]="mn",
- [0x0CCC]="mn",
- [0x0CCD]="mn",
- [0x0CE2]="mn",
- [0x0CE3]="mn",
- [0x0D41]="mn",
- [0x0D42]="mn",
- [0x0D43]="mn",
- [0x0D4D]="mn",
- [0x0DCA]="mn",
- [0x0DD2]="mn",
- [0x0DD3]="mn",
- [0x0DD4]="mn",
- [0x0DD6]="mn",
- [0x0E31]="mn",
- [0x0E34]="mn",
- [0x0E35]="mn",
- [0x0E36]="mn",
- [0x0E37]="mn",
- [0x0E38]="mn",
- [0x0E39]="mn",
- [0x0E3A]="mn",
- [0x0E47]="mn",
- [0x0E48]="mn",
- [0x0E49]="mn",
- [0x0E4A]="mn",
- [0x0E4B]="mn",
- [0x0E4C]="mn",
- [0x0E4D]="mn",
- [0x0E4E]="mn",
- [0x0EB1]="mn",
- [0x0EB4]="mn",
- [0x0EB5]="mn",
- [0x0EB6]="mn",
- [0x0EB7]="mn",
- [0x0EB8]="mn",
- [0x0EB9]="mn",
- [0x0EBB]="mn",
- [0x0EBC]="mn",
- [0x0EC8]="mn",
- [0x0EC9]="mn",
- [0x0ECA]="mn",
- [0x0ECB]="mn",
- [0x0ECC]="mn",
- [0x0ECD]="mn",
- [0x0F18]="mn",
- [0x0F19]="mn",
- [0x0F35]="mn",
- [0x0F37]="mn",
- [0x0F39]="mn",
- [0x0F71]="mn",
- [0x0F72]="mn",
- [0x0F73]="mn",
- [0x0F74]="mn",
- [0x0F75]="mn",
- [0x0F76]="mn",
- [0x0F77]="mn",
- [0x0F78]="mn",
- [0x0F79]="mn",
- [0x0F7A]="mn",
- [0x0F7B]="mn",
- [0x0F7C]="mn",
- [0x0F7D]="mn",
- [0x0F7E]="mn",
- [0x0F80]="mn",
- [0x0F81]="mn",
- [0x0F82]="mn",
- [0x0F83]="mn",
- [0x0F84]="mn",
- [0x0F86]="mn",
- [0x0F87]="mn",
- [0x0F90]="mn",
- [0x0F91]="mn",
- [0x0F92]="mn",
- [0x0F93]="mn",
- [0x0F94]="mn",
- [0x0F95]="mn",
- [0x0F96]="mn",
- [0x0F97]="mn",
- [0x0F99]="mn",
- [0x0F9A]="mn",
- [0x0F9B]="mn",
- [0x0F9C]="mn",
- [0x0F9D]="mn",
- [0x0F9E]="mn",
- [0x0F9F]="mn",
- [0x0FA0]="mn",
- [0x0FA1]="mn",
- [0x0FA2]="mn",
- [0x0FA3]="mn",
- [0x0FA4]="mn",
- [0x0FA5]="mn",
- [0x0FA6]="mn",
- [0x0FA7]="mn",
- [0x0FA8]="mn",
- [0x0FA9]="mn",
- [0x0FAA]="mn",
- [0x0FAB]="mn",
- [0x0FAC]="mn",
- [0x0FAD]="mn",
- [0x0FAE]="mn",
- [0x0FAF]="mn",
- [0x0FB0]="mn",
- [0x0FB1]="mn",
- [0x0FB2]="mn",
- [0x0FB3]="mn",
- [0x0FB4]="mn",
- [0x0FB5]="mn",
- [0x0FB6]="mn",
- [0x0FB7]="mn",
- [0x0FB8]="mn",
- [0x0FB9]="mn",
- [0x0FBA]="mn",
- [0x0FBB]="mn",
- [0x0FBC]="mn",
- [0x0FC6]="mn",
- [0x102D]="mn",
- [0x102E]="mn",
- [0x102F]="mn",
- [0x1030]="mn",
- [0x1032]="mn",
- [0x1036]="mn",
- [0x1037]="mn",
- [0x1039]="mn",
- [0x1058]="mn",
- [0x1059]="mn",
- [0x135F]="mn",
- [0x1712]="mn",
- [0x1713]="mn",
- [0x1714]="mn",
- [0x1732]="mn",
- [0x1733]="mn",
- [0x1734]="mn",
- [0x1752]="mn",
- [0x1753]="mn",
- [0x1772]="mn",
- [0x1773]="mn",
- [0x17B7]="mn",
- [0x17B8]="mn",
- [0x17B9]="mn",
- [0x17BA]="mn",
- [0x17BB]="mn",
- [0x17BC]="mn",
- [0x17BD]="mn",
- [0x17C6]="mn",
- [0x17C9]="mn",
- [0x17CA]="mn",
- [0x17CB]="mn",
- [0x17CC]="mn",
- [0x17CD]="mn",
- [0x17CE]="mn",
- [0x17CF]="mn",
- [0x17D0]="mn",
- [0x17D1]="mn",
- [0x17D2]="mn",
- [0x17D3]="mn",
- [0x17DD]="mn",
- [0x180B]="mn",
- [0x180C]="mn",
- [0x180D]="mn",
- [0x18A9]="mn",
- [0x1920]="mn",
- [0x1921]="mn",
- [0x1922]="mn",
- [0x1927]="mn",
- [0x1928]="mn",
- [0x1932]="mn",
- [0x1939]="mn",
- [0x193A]="mn",
- [0x193B]="mn",
- [0x1A17]="mn",
- [0x1A18]="mn",
- [0x1B00]="mn",
- [0x1B01]="mn",
- [0x1B02]="mn",
- [0x1B03]="mn",
- [0x1B34]="mn",
- [0x1B36]="mn",
- [0x1B37]="mn",
- [0x1B38]="mn",
- [0x1B39]="mn",
- [0x1B3A]="mn",
- [0x1B3C]="mn",
- [0x1B42]="mn",
- [0x1B6B]="mn",
- [0x1B6C]="mn",
- [0x1B6D]="mn",
- [0x1B6E]="mn",
- [0x1B6F]="mn",
- [0x1B70]="mn",
- [0x1B71]="mn",
- [0x1B72]="mn",
- [0x1B73]="mn",
- [0x1DC0]="mn",
- [0x1DC1]="mn",
- [0x1DC2]="mn",
- [0x1DC3]="mn",
- [0x1DC4]="mn",
- [0x1DC5]="mn",
- [0x1DC6]="mn",
- [0x1DC7]="mn",
- [0x1DC8]="mn",
- [0x1DC9]="mn",
- [0x1DCA]="mn",
- [0x1DFE]="mn",
- [0x1DFF]="mn",
- [0x20D0]="mn",
- [0x20D1]="mn",
- [0x20D2]="mn",
- [0x20D3]="mn",
- [0x20D4]="mn",
- [0x20D5]="mn",
- [0x20D6]="mn",
- [0x20D7]="mn",
- [0x20D8]="mn",
- [0x20D9]="mn",
- [0x20DA]="mn",
- [0x20DB]="mn",
- [0x20DC]="mn",
- [0x20E1]="mn",
- [0x20E5]="mn",
- [0x20E6]="mn",
- [0x20E7]="mn",
- [0x20E8]="mn",
- [0x20E9]="mn",
- [0x20EA]="mn",
- [0x20EB]="mn",
- [0x20EC]="mn",
- [0x20ED]="mn",
- [0x20EE]="mn",
- [0x20EF]="mn",
- [0x302A]="mn",
- [0x302B]="mn",
- [0x302C]="mn",
- [0x302D]="mn",
- [0x302E]="mn",
- [0x302F]="mn",
- [0x3099]="mn",
- [0x309A]="mn",
- [0xA806]="mn",
- [0xA80B]="mn",
- [0xA825]="mn",
- [0xA826]="mn",
- [0xFB1E]="mn",
- [0xFE00]="mn",
- [0xFE01]="mn",
- [0xFE02]="mn",
- [0xFE03]="mn",
- [0xFE04]="mn",
- [0xFE05]="mn",
- [0xFE06]="mn",
- [0xFE07]="mn",
- [0xFE08]="mn",
- [0xFE09]="mn",
- [0xFE0A]="mn",
- [0xFE0B]="mn",
- [0xFE0C]="mn",
- [0xFE0D]="mn",
- [0xFE0E]="mn",
- [0xFE0F]="mn",
- [0xFE20]="mn",
- [0xFE21]="mn",
- [0xFE22]="mn",
- [0xFE23]="mn",
-}
-
-end -- closure
-
-do -- begin closure to overcome local limits and interference
-
-if not modules then modules = { } end modules ['luatex-fonts-lua'] = {
-    version   = 1.001,
-    comment   = "companion to luatex-*.tex",
-    author    = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
-    copyright = "PRAGMA ADE / ConTeXt Development Team",
-    license   = "see context related readme files"
-}
-
-if context then
-    texio.write_nl("fatal error: this module is not for context")
-    os.exit()
-end
-
-local fonts       = fonts
-fonts.formats.lua = "lua"
-
+local fonts=fonts
+fonts.formats.lua="lua"
 function fonts.readers.lua(specification)
-    local fullname = specification.filename or ""
-    if fullname == "" then
-        local forced = specification.forced or ""
-        if forced ~= "" then
-            fullname = specification.name .. "." .. forced
-        else
-            fullname = specification.name
-        end
-    end
-    local fullname = resolvers.findfile(fullname) or ""
-    if fullname ~= "" then
-        local loader = loadfile(fullname)
-        loader = loader and loader()
-        return loader and loader(specification)
+  local fullname=specification.filename or ""
+  if fullname=="" then
+    local forced=specification.forced or ""
+    if forced~="" then
+      fullname=specification.name.."."..forced
+    else
+      fullname=specification.name
     end
+  end
+  local fullname=resolvers.findfile(fullname) or ""
+  if fullname~="" then
+    local loader=loadfile(fullname)
+    loader=loader and loader()
+    return loader and loader(specification)
+  end
 end
 
 end -- closure
 
 do -- begin closure to overcome local limits and interference
 
-if not modules then modules = { } end modules ['font-def'] = {
-    version   = 1.001,
-    comment   = "companion to font-ini.mkiv",
-    author    = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
-    copyright = "PRAGMA ADE / ConTeXt Development Team",
-    license   = "see context related readme files"
+if not modules then modules={} end modules ['font-def']={
+  version=1.001,
+  comment="companion to font-ini.mkiv",
+  author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+  copyright="PRAGMA ADE / ConTeXt Development Team",
+  license="see context related readme files"
 }
-
--- We can overload some of the definers.functions so we don't local them.
-
-local format, gmatch, match, find, lower, gsub = string.format, string.gmatch, string.match, string.find, string.lower, string.gsub
-local tostring, next = tostring, next
-local lpegmatch = lpeg.match
-
-local allocate = utilities.storage.allocate
-
-local trace_defining     = false  trackers  .register("fonts.defining", function(v) trace_defining     = v end)
-local directive_embedall = false  directives.register("fonts.embedall", function(v) directive_embedall = v end)
-
-trackers.register("fonts.loading", "fonts.defining", "otf.loading", "afm.loading", "tfm.loading")
-trackers.register("fonts.all", "fonts.*", "otf.*", "afm.*", "tfm.*")
-
-local report_defining = logs.reporter("fonts","defining")
-
---[[ldx--
-<p>Here we deal with defining fonts. We do so by intercepting the
-default loader that only handles <l n='tfm'/>.</p>
---ldx]]--
-
-local fonts         = fonts
-local fontdata      = fonts.hashes.identifiers
-local readers       = fonts.readers
-local definers      = fonts.definers
-local specifiers    = fonts.specifiers
-local constructors  = fonts.constructors
-local fontgoodies   = fonts.goodies
-
-readers.sequence    = allocate { 'otf', 'ttf', 'afm', 'tfm', 'lua' } -- dfont ttc
-
-local variants      = allocate()
-specifiers.variants = variants
-
-definers.methods    = definers.methods or { }
-
-local internalized  = allocate() -- internal tex numbers (private)
-
-local loadedfonts   = constructors.loadedfonts
-local designsizes   = constructors.designsizes
-
--- not in generic (some day I'll make two defs, one for context, one for generic)
-
-local resolvefile   = fontgoodies and fontgoodies.filenames and fontgoodies.filenames.resolve or function(s) return s end
-
---[[ldx--
-<p>We hardly gain anything when we cache the final (pre scaled)
-<l n='tfm'/> table. But it can be handy for debugging, so we no
-longer carry this code along. Also, we now have quite some reference
-to other tables so we would end up with lots of catches.</p>
---ldx]]--
-
---[[ldx--
-<p>We can prefix a font specification by <type>name:</type> or
-<type>file:</type>. The first case will result in a lookup in the
-synonym table.</p>
-
-<typing>
-[ name: | file: ] identifier [ separator [ specification ] ]
-</typing>
-
-<p>The following function split the font specification into components
-and prepares a table that will move along as we proceed.</p>
---ldx]]--
-
--- beware, we discard additional specs
---
--- method:name method:name(sub) method:name(sub)*spec method:name*spec
--- name name(sub) name(sub)*spec name*spec
--- name@spec*oeps
-
-local splitter, splitspecifiers = nil, "" -- not so nice
-
-local P, C, S, Cc = lpeg.P, lpeg.C, lpeg.S, lpeg.Cc
-
-local left  = P("(")
-local right = P(")")
-local colon = P(":")
-local space = P(" ")
-
-definers.defaultlookup = "file"
-
-local prefixpattern = P(false)
-
+local format,gmatch,match,find,lower,gsub=string.format,string.gmatch,string.match,string.find,string.lower,string.gsub
+local tostring,next=tostring,next
+local lpegmatch=lpeg.match
+local allocate=utilities.storage.allocate
+local trace_defining=false trackers .register("fonts.defining",function(v) trace_defining=v end)
+local directive_embedall=false directives.register("fonts.embedall",function(v) directive_embedall=v end)
+trackers.register("fonts.loading","fonts.defining","otf.loading","afm.loading","tfm.loading")
+trackers.register("fonts.all","fonts.*","otf.*","afm.*","tfm.*")
+local report_defining=logs.reporter("fonts","defining")
+local fonts=fonts
+local fontdata=fonts.hashes.identifiers
+local readers=fonts.readers
+local definers=fonts.definers
+local specifiers=fonts.specifiers
+local constructors=fonts.constructors
+local fontgoodies=fonts.goodies
+readers.sequence=allocate { 'otf','ttf','afm','tfm','lua' } 
+local variants=allocate()
+specifiers.variants=variants
+definers.methods=definers.methods or {}
+local internalized=allocate() 
+local loadedfonts=constructors.loadedfonts
+local designsizes=constructors.designsizes
+local resolvefile=fontgoodies and fontgoodies.filenames and fontgoodies.filenames.resolve or function(s) return s end
+local splitter,splitspecifiers=nil,"" 
+local P,C,S,Cc=lpeg.P,lpeg.C,lpeg.S,lpeg.Cc
+local left=P("(")
+local right=P(")")
+local colon=P(":")
+local space=P(" ")
+definers.defaultlookup="file"
+local prefixpattern=P(false)
 local function addspecifier(symbol)
-    splitspecifiers     = splitspecifiers .. symbol
-    local method        = S(splitspecifiers)
-    local lookup        = C(prefixpattern) * colon
-    local sub           = left * C(P(1-left-right-method)^1) * right
-    local specification = C(method) * C(P(1)^1)
-    local name          = C((1-sub-specification)^1)
-    splitter = P((lookup + Cc("")) * name * (sub + Cc("")) * (specification + Cc("")))
+  splitspecifiers=splitspecifiers..symbol
+  local method=S(splitspecifiers)
+  local lookup=C(prefixpattern)*colon
+  local sub=left*C(P(1-left-right-method)^1)*right
+  local specification=C(method)*C(P(1)^1)
+  local name=C((1-sub-specification)^1)
+  splitter=P((lookup+Cc(""))*name*(sub+Cc(""))*(specification+Cc("")))
 end
-
 local function addlookup(str,default)
-    prefixpattern = prefixpattern + P(str)
+  prefixpattern=prefixpattern+P(str)
 end
-
-definers.addlookup = addlookup
-
+definers.addlookup=addlookup
 addlookup("file")
 addlookup("name")
 addlookup("spec")
-
 local function getspecification(str)
-    return lpegmatch(splitter,str)
+  return lpegmatch(splitter,str)
 end
-
-definers.getspecification = getspecification
-
+definers.getspecification=getspecification
 function definers.registersplit(symbol,action,verbosename)
-    addspecifier(symbol)
-    variants[symbol] = action
-    if verbosename then
-        variants[verbosename] = action
-    end
+  addspecifier(symbol)
+  variants[symbol]=action
+  if verbosename then
+    variants[verbosename]=action
+  end
 end
-
 local function makespecification(specification,lookup,name,sub,method,detail,size)
-    size = size or 655360
-    if trace_defining then
-        report_defining("%s -> lookup: %s, name: %s, sub: %s, method: %s, detail: %s",
-            specification, lookup ~= "" and lookup or "[file]", name ~= "" and name or "-",
-            sub ~= "" and sub or "-", method ~= "" and method or "-", detail ~= "" and detail or "-")
-    end
-    if not lookup or lookup == "" then
-        lookup = definers.defaultlookup
-    end
-    local t = {
-        lookup        = lookup,        -- forced type
-        specification = specification, -- full specification
-        size          = size,          -- size in scaled points or -1000*n
-        name          = name,          -- font or filename
-        sub           = sub,           -- subfont (eg in ttc)
-        method        = method,        -- specification method
-        detail        = detail,        -- specification
-        resolved      = "",            -- resolved font name
-        forced        = "",            -- forced loader
-        features      = { },           -- preprocessed features
-    }
-    return t
-end
-
-
-definers.makespecification = makespecification
-
-function definers.analyze(specification, size)
-    -- can be optimized with locals
-    local lookup, name, sub, method, detail = getspecification(specification or "")
-    return makespecification(specification, lookup, name, sub, method, detail, size)
-end
-
---[[ldx--
-<p>We can resolve the filename using the next function:</p>
---ldx]]--
-
-definers.resolvers = definers.resolvers or { }
-local resolvers    = definers.resolvers
-
--- todo: reporter
-
+  size=size or 655360
+  if trace_defining then
+    report_defining("%s -> lookup: %s, name: %s, sub: %s, method: %s, detail: %s",
+      specification,lookup~="" and lookup or "[file]",name~="" and name or "-",
+      sub~="" and sub or "-",method~="" and method or "-",detail~="" and detail or "-")
+  end
+  if not lookup or lookup=="" then
+    lookup=definers.defaultlookup
+  end
+  local t={
+    lookup=lookup,
+    specification=specification,
+    size=size,
+    name=name,
+    sub=sub,
+    method=method,
+    detail=detail,
+    resolved="",
+    forced="",
+    features={},
+  }
+  return t
+end
+definers.makespecification=makespecification
+function definers.analyze(specification,size)
+  local lookup,name,sub,method,detail=getspecification(specification or "")
+  return makespecification(specification,lookup,name,sub,method,detail,size)
+end
+definers.resolvers=definers.resolvers or {}
+local resolvers=definers.resolvers
 function resolvers.file(specification)
-    local name = resolvefile(specification.name) -- catch for renames
-    local suffix = file.suffix(name)
-    if fonts.formats[suffix] then
-        specification.forced = suffix
-        specification.name = file.removesuffix(name)
-    else
-        specification.name = name -- cna be resolved
-    end
+  local name=resolvefile(specification.name) 
+  local suffix=file.suffix(name)
+  if fonts.formats[suffix] then
+    specification.forced=suffix
+    specification.name=file.removesuffix(name)
+  else
+    specification.name=name 
+  end
 end
-
 function resolvers.name(specification)
-    local resolve = fonts.names.resolve
-    if resolve then
-        local resolved, sub = resolve(specification.name,specification.sub,specification) -- we pass specification for overloaded versions
-        if resolved then
-            specification.resolved = resolved
-            specification.sub      = sub
-            local suffix = file.suffix(resolved)
-            if fonts.formats[suffix] then
-                specification.forced = suffix
-                specification.name   = file.removesuffix(resolved)
-            else
-                specification.name = resolved
-            end
-        end
-    else
-        resolvers.file(specification)
-    end
+  local resolve=fonts.names.resolve
+  if resolve then
+    local resolved,sub=resolve(specification.name,specification.sub,specification) 
+    if resolved then
+      specification.resolved=resolved
+      specification.sub=sub
+      local suffix=file.suffix(resolved)
+      if fonts.formats[suffix] then
+        specification.forced=suffix
+        specification.name=file.removesuffix(resolved)
+      else
+        specification.name=resolved
+      end
+    end
+  else
+    resolvers.file(specification)
+  end
 end
-
 function resolvers.spec(specification)
-    local resolvespec = fonts.names.resolvespec
-    if resolvespec then
-        local resolved, sub = resolvespec(specification.name,specification.sub,specification) -- we pass specification for overloaded versions
-        if resolved then
-            specification.resolved = resolved
-            specification.sub      = sub
-            specification.forced   = file.suffix(resolved)
-            specification.name     = file.removesuffix(resolved)
-        end
-    else
-        resolvers.name(specification)
-    end
+  local resolvespec=fonts.names.resolvespec
+  if resolvespec then
+    local resolved,sub=resolvespec(specification.name,specification.sub,specification) 
+    if resolved then
+      specification.resolved=resolved
+      specification.sub=sub
+      specification.forced=file.suffix(resolved)
+      specification.name=file.removesuffix(resolved)
+    end
+  else
+    resolvers.name(specification)
+  end
 end
-
 function definers.resolve(specification)
-    if not specification.resolved or specification.resolved == "" then -- resolved itself not per se in mapping hash
-        local r = resolvers[specification.lookup]
-        if r then
-            r(specification)
-        end
-    end
-    if specification.forced == "" then
-        specification.forced = nil
-    else
-        specification.forced = specification.forced
-    end
-    specification.hash = lower(specification.name .. ' @ ' .. constructors.hashfeatures(specification))
-    if specification.sub and specification.sub ~= "" then
-        specification.hash = specification.sub .. ' @ ' .. specification.hash
-    end
-    return specification
+  if not specification.resolved or specification.resolved=="" then 
+    local r=resolvers[specification.lookup]
+    if r then
+      r(specification)
+    end
+  end
+  if specification.forced=="" then
+    specification.forced=nil
+  else
+    specification.forced=specification.forced
+  end
+  specification.hash=lower(specification.name..' @ '..constructors.hashfeatures(specification))
+  if specification.sub and specification.sub~="" then
+    specification.hash=specification.sub..' @ '..specification.hash
+  end
+  return specification
 end
-
---[[ldx--
-<p>The main read function either uses a forced reader (as determined by
-a lookup) or tries to resolve the name using the list of readers.</p>
-
-<p>We need to cache when possible. We do cache raw tfm data (from <l
-n='tfm'/>, <l n='afm'/> or <l n='otf'/>). After that we can cache based
-on specificstion (name) and size, that is, <l n='tex'/> only needs a number
-for an already loaded fonts. However, it may make sense to cache fonts
-before they're scaled as well (store <l n='tfm'/>'s with applied methods
-and features). However, there may be a relation between the size and
-features (esp in virtual fonts) so let's not do that now.</p>
-
-<p>Watch out, here we do load a font, but we don't prepare the
-specification yet.</p>
---ldx]]--
-
--- very experimental:
-
 function definers.applypostprocessors(tfmdata)
-    local postprocessors = tfmdata.postprocessors
-    if postprocessors then
-        local properties = tfmdata.properties
-        for i=1,#postprocessors do
-            local extrahash = postprocessors[i](tfmdata) -- after scaling etc
-            if type(extrahash) == "string" and extrahash ~= "" then
-                -- e.g. a reencoding needs this
-                extrahash = gsub(lower(extrahash),"[^a-z]","-")
-                properties.fullname = format("%s-%s",properties.fullname,extrahash)
-            end
-        end
-    end
-    return tfmdata
+  local postprocessors=tfmdata.postprocessors
+  if postprocessors then
+    local properties=tfmdata.properties
+    for i=1,#postprocessors do
+      local extrahash=postprocessors[i](tfmdata) 
+      if type(extrahash)=="string" and extrahash~="" then
+        extrahash=gsub(lower(extrahash),"[^a-z]","-")
+        properties.fullname=format("%s-%s",properties.fullname,extrahash)
+      end
+    end
+  end
+  return tfmdata
 end
-
--- function definers.applypostprocessors(tfmdata)
---     return tfmdata
--- end
-
 local function checkembedding(tfmdata)
-    local properties = tfmdata.properties
-    local embedding
-    if directive_embedall then
-        embedding = "full"
-    elseif properties and properties.filename and constructors.dontembed[properties.filename] then
-        embedding = "no"
-    else
-        embedding = "subset"
-    end
-    if properties then
-        properties.embedding = embedding
-    else
-        tfmdata.properties = { embedding = embedding }
-    end
-    tfmdata.embedding = embedding
+  local properties=tfmdata.properties
+  local embedding
+  if directive_embedall then
+    embedding="full"
+  elseif properties and properties.filename and constructors.dontembed[properties.filename] then
+    embedding="no"
+  else
+    embedding="subset"
+  end
+  if properties then
+    properties.embedding=embedding
+  else
+    tfmdata.properties={ embedding=embedding }
+  end
+  tfmdata.embedding=embedding
 end
-
 function definers.loadfont(specification)
-    local hash = constructors.hashinstance(specification)
-    local tfmdata = loadedfonts[hash] -- hashes by size !
-    if not tfmdata then
-        local forced = specification.forced or ""
-        if forced ~= "" then
-            local reader = readers[lower(forced)]
-            tfmdata = reader and reader(specification)
-            if not tfmdata then
-                report_defining("forced type %s of %s not found",forced,specification.name)
-            end
-        else
-            local sequence = readers.sequence -- can be overloaded so only a shortcut here
-            for s=1,#sequence do
-                local reader = sequence[s]
-                if readers[reader] then -- we skip not loaded readers
-                    if trace_defining then
-                        report_defining("trying (reader sequence driven) type %s for %s with file %s",reader,specification.name,specification.filename or "unknown")
-                    end
-                    tfmdata = readers[reader](specification)
-                    if tfmdata then
-                        break
-                    else
-                        specification.filename = nil
-                    end
-                end
-            end
-        end
-        if tfmdata then
-            tfmdata = definers.applypostprocessors(tfmdata)
-            checkembedding(tfmdata) -- todo: general postprocessor
-            loadedfonts[hash] = tfmdata
-            designsizes[specification.hash] = tfmdata.parameters.designsize
+  local hash=constructors.hashinstance(specification)
+  local tfmdata=loadedfonts[hash] 
+  if not tfmdata then
+    local forced=specification.forced or ""
+    if forced~="" then
+      local reader=readers[lower(forced)]
+      tfmdata=reader and reader(specification)
+      if not tfmdata then
+        report_defining("forced type %s of %s not found",forced,specification.name)
+      end
+    else
+      local sequence=readers.sequence 
+      for s=1,#sequence do
+        local reader=sequence[s]
+        if readers[reader] then 
+          if trace_defining then
+            report_defining("trying (reader sequence driven) type %s for %s with file %s",reader,specification.name,specification.filename or "unknown")
+          end
+          tfmdata=readers[reader](specification)
+          if tfmdata then
+            break
+          else
+            specification.filename=nil
+          end
         end
+      end
     end
-    if not tfmdata then
-        report_defining("font with asked name '%s' is not found using lookup '%s'",specification.name,specification.lookup)
-    end
-    return tfmdata
-end
-
---[[ldx--
-<p>For virtual fonts we need a slightly different approach:</p>
---ldx]]--
-
-function constructors.readanddefine(name,size) -- no id -- maybe a dummy first
-    local specification = definers.analyze(name,size)
-    local method = specification.method
-    if method and variants[method] then
-        specification = variants[method](specification)
-    end
-    specification = definers.resolve(specification)
-    local hash = constructors.hashinstance(specification)
-    local id = definers.registered(hash)
-    if not id then
-        local tfmdata = definers.loadfont(specification)
-        if tfmdata then
-            tfmdata.properties.hash = hash
-            id = font.define(tfmdata)
-            definers.register(tfmdata,id)
-        else
-            id = 0  -- signal
-        end
+    if tfmdata then
+      tfmdata=definers.applypostprocessors(tfmdata)
+      checkembedding(tfmdata) 
+      loadedfonts[hash]=tfmdata
+      designsizes[specification.hash]=tfmdata.parameters.designsize
+    end
+  end
+  if not tfmdata then
+    report_defining("font with asked name '%s' is not found using lookup '%s'",specification.name,specification.lookup)
+  end
+  return tfmdata
+end
+function constructors.readanddefine(name,size) 
+  local specification=definers.analyze(name,size)
+  local method=specification.method
+  if method and variants[method] then
+    specification=variants[method](specification)
+  end
+  specification=definers.resolve(specification)
+  local hash=constructors.hashinstance(specification)
+  local id=definers.registered(hash)
+  if not id then
+    local tfmdata=definers.loadfont(specification)
+    if tfmdata then
+      tfmdata.properties.hash=hash
+      id=font.define(tfmdata)
+      definers.register(tfmdata,id)
+    else
+      id=0 
     end
-    return fontdata[id], id
+  end
+  return fontdata[id],id
 end
-
---[[ldx--
-<p>So far the specifiers. Now comes the real definer. Here we cache
-based on id's. Here we also intercept the virtual font handler. Since
-it evolved stepwise I may rewrite this bit (combine code).</p>
-
-In the previously defined reader (the one resulting in a <l n='tfm'/>
-table) we cached the (scaled) instances. Here we cache them again, but
-this time based on id. We could combine this in one cache but this does
-not gain much. By the way, passing id's back to in the callback was
-introduced later in the development.</p>
---ldx]]--
-
-local lastdefined  = nil -- we don't want this one to end up in s-tra-02
-local internalized = { }
-
-function definers.current() -- or maybe current
-    return lastdefined
+local lastdefined=nil 
+local internalized={}
+function definers.current() 
+  return lastdefined
 end
-
 function definers.registered(hash)
-    local id = internalized[hash]
-    return id, id and fontdata[id]
+  local id=internalized[hash]
+  return id,id and fontdata[id]
 end
-
 function definers.register(tfmdata,id)
-    if tfmdata and id then
-        local hash = tfmdata.properties.hash
-        if not internalized[hash] then
-            internalized[hash] = id
-            if trace_defining then
-                report_defining("registering font, id: %s, hash: %s",id or "?",hash or "?")
-            end
-            fontdata[id] = tfmdata
-        end
+  if tfmdata and id then
+    local hash=tfmdata.properties.hash
+    if not internalized[hash] then
+      internalized[hash]=id
+      if trace_defining then
+        report_defining("registering font, id: %s, hash: %s",id or "?",hash or "?")
+      end
+      fontdata[id]=tfmdata
+    end
+  end
+end
+function definers.read(specification,size,id) 
+  statistics.starttiming(fonts)
+  if type(specification)=="string" then
+    specification=definers.analyze(specification,size)
+  end
+  local method=specification.method
+  if method and variants[method] then
+    specification=variants[method](specification)
+  end
+  specification=definers.resolve(specification)
+  local hash=constructors.hashinstance(specification)
+  local tfmdata=definers.registered(hash) 
+  if tfmdata then
+    if trace_defining then
+      report_defining("already hashed: %s",hash)
     end
-end
-
-function definers.read(specification,size,id) -- id can be optional, name can already be table
-    statistics.starttiming(fonts)
-    if type(specification) == "string" then
-        specification = definers.analyze(specification,size)
-    end
-    local method = specification.method
-    if method and variants[method] then
-        specification = variants[method](specification)
-    end
-    specification = definers.resolve(specification)
-    local hash = constructors.hashinstance(specification)
-    local tfmdata = definers.registered(hash) -- id
+  else
+    tfmdata=definers.loadfont(specification) 
     if tfmdata then
-        if trace_defining then
-            report_defining("already hashed: %s",hash)
-        end
+      if trace_defining then
+        report_defining("loaded and hashed: %s",hash)
+      end
+      tfmdata.properties.hash=hash
+      if id then
+        definers.register(tfmdata,id)
+      end
     else
-        tfmdata = definers.loadfont(specification) -- can be overloaded
-        if tfmdata then
-            if trace_defining then
-                report_defining("loaded and hashed: %s",hash)
-            end
-        --~ constructors.checkvirtualid(tfmdata) -- interferes
-            tfmdata.properties.hash = hash
-            if id then
-                definers.register(tfmdata,id)
-            end
-        else
-            if trace_defining then
-                report_defining("not loaded and hashed: %s",hash)
-            end
-        end
-    end
-    lastdefined = tfmdata or id -- todo ! ! ! ! !
-    if not tfmdata then -- or id?
-        report_defining( "unknown font %s, loading aborted",specification.name)
-    elseif trace_defining and type(tfmdata) == "table" then
-        local properties = tfmdata.properties or { }
-        local parameters = tfmdata.parameters or { }
-        report_defining("using %s font with id %s, name:%s size:%s bytes:%s encoding:%s fullname:%s filename:%s",
-                       properties.format        or "unknown",
-                       id                       or "?",
-                       properties.name          or "?",
-                       parameters.size          or "default",
-                       properties.encodingbytes or "?",
-                       properties.encodingname  or "unicode",
-                       properties.fullname      or "?",
-         file.basename(properties.filename      or "?"))
-    end
-    statistics.stoptiming(fonts)
-    return tfmdata
-end
-
---[[ldx--
-<p>We overload the <l n='tfm'/> reader.</p>
---ldx]]--
-
-callbacks.register('define_font', definers.read, "definition of fonts (tfmdata preparation)")
+      if trace_defining then
+        report_defining("not loaded and hashed: %s",hash)
+      end
+    end
+  end
+  lastdefined=tfmdata or id 
+  if not tfmdata then 
+    report_defining("unknown font %s, loading aborted",specification.name)
+  elseif trace_defining and type(tfmdata)=="table" then
+    local properties=tfmdata.properties or {}
+    local parameters=tfmdata.parameters or {}
+    report_defining("using %s font with id %s, name:%s size:%s bytes:%s encoding:%s fullname:%s filename:%s",
+            properties.format    or "unknown",
+            id            or "?",
+            properties.name     or "?",
+            parameters.size     or "default",
+            properties.encodingbytes or "?",
+            properties.encodingname or "unicode",
+            properties.fullname   or "?",
+     file.basename(properties.filename   or "?"))
+  end
+  statistics.stoptiming(fonts)
+  return tfmdata
+end
+callbacks.register('define_font',definers.read,"definition of fonts (tfmdata preparation)")
 
 end -- closure
 
 do -- begin closure to overcome local limits and interference
 
-if not modules then modules = { } end modules ['luatex-font-def'] = {
-    version   = 1.001,
-    comment   = "companion to luatex-*.tex",
-    author    = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
-    copyright = "PRAGMA ADE / ConTeXt Development Team",
-    license   = "see context related readme files"
+if not modules then modules={} end modules ['luatex-font-def']={
+  version=1.001,
+  comment="companion to luatex-*.tex",
+  author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+  copyright="PRAGMA ADE / ConTeXt Development Team",
+  license="see context related readme files"
 }
-
 if context then
-    texio.write_nl("fatal error: this module is not for context")
-    os.exit()
+  texio.write_nl("fatal error: this module is not for context")
+  os.exit()
 end
-
-local fonts = fonts
-
--- A bit of tuning for definitions.
-
-fonts.constructors.namemode = "specification" -- somehow latex needs this (changed name!) => will change into an overload
-
--- tricky: we sort of bypass the parser and directly feed all into
--- the sub parser
-
+local fonts=fonts
+fonts.constructors.namemode="specification"
 function fonts.definers.getspecification(str)
-    return "", str, "", ":", str
+  return "",str,"",":",str
+end
+local list={}
+local function issome ()  list.lookup='name'     end 
+local function isfile ()  list.lookup='file'     end
+local function isname ()  list.lookup='name'     end
+local function thename(s)  list.name=s        end
+local function issub (v)  list.sub=v        end
+local function iscrap (s)  list.crap=string.lower(s) end
+local function iskey (k,v) list[k]=v        end
+local function istrue (s)  list[s]=true      end
+local function isfalse(s)  list[s]=false      end
+local P,S,R,C=lpeg.P,lpeg.S,lpeg.R,lpeg.C
+local spaces=P(" ")^0
+local namespec=(1-S("/:("))^0 
+local crapspec=spaces*P("/")*(((1-P(":"))^0)/iscrap)*spaces
+local filename_1=P("file:")/isfile*(namespec/thename)
+local filename_2=P("[")*P(true)/isname*(((1-P("]"))^0)/thename)*P("]")
+local fontname_1=P("name:")/isname*(namespec/thename)
+local fontname_2=P(true)/issome*(namespec/thename)
+local sometext=(R("az","AZ","09")+S("+-."))^1
+local truevalue=P("+")*spaces*(sometext/istrue)
+local falsevalue=P("-")*spaces*(sometext/isfalse)
+local keyvalue=(C(sometext)*spaces*P("=")*spaces*C(sometext))/iskey
+local somevalue=sometext/istrue
+local subvalue=P("(")*(C(P(1-S("()"))^1)/issub)*P(")") 
+local option=spaces*(keyvalue+falsevalue+truevalue+somevalue)*spaces
+local options=P(":")*spaces*(P(";")^0*option)^0
+local pattern=(filename_1+filename_2+fontname_1+fontname_2)*subvalue^0*crapspec^0*options^0
+local function colonized(specification) 
+  list={}
+  lpeg.match(pattern,specification.specification)
+  list.crap=nil 
+  if list.name then
+    specification.name=list.name
+    list.name=nil
+  end
+  if list.lookup then
+    specification.lookup=list.lookup
+    list.lookup=nil
+  end
+  if list.sub then
+    specification.sub=list.sub
+    list.sub=nil
+  end
+  specification.features.normal=fonts.handlers.otf.features.normalize(list)
+  return specification
 end
-
--- the generic name parser (different from context!)
-
-local list = { }
-
-local function issome ()    list.lookup = 'name'          end -- xetex mode prefers name (not in context!)
-local function isfile ()    list.lookup = 'file'          end
-local function isname ()    list.lookup = 'name'          end
-local function thename(s)   list.name   = s               end
-local function issub  (v)   list.sub    = v               end
-local function iscrap (s)   list.crap   = string.lower(s) end
-local function iskey  (k,v) list[k]     = v               end
-local function istrue (s)   list[s]     = true            end
-local function isfalse(s)   list[s]     = false           end
-
-local P, S, R, C = lpeg.P, lpeg.S, lpeg.R, lpeg.C
-
-local spaces     = P(" ")^0
-local namespec   = (1-S("/:("))^0 -- was: (1-S("/: ("))^0
-local crapspec   = spaces * P("/") * (((1-P(":"))^0)/iscrap) * spaces
-local filename_1 = P("file:")/isfile * (namespec/thename)
-local filename_2 = P("[") * P(true)/isname * (((1-P("]"))^0)/thename) * P("]")
-local fontname_1 = P("name:")/isname * (namespec/thename)
-local fontname_2 = P(true)/issome * (namespec/thename)
-local sometext   = (R("az","AZ","09") + S("+-."))^1
-local truevalue  = P("+") * spaces * (sometext/istrue)
-local falsevalue = P("-") * spaces * (sometext/isfalse)
-local keyvalue   = (C(sometext) * spaces * P("=") * spaces * C(sometext))/iskey
-local somevalue  = sometext/istrue
-local subvalue   = P("(") * (C(P(1-S("()"))^1)/issub) * P(")") -- for Kim
-local option     = spaces * (keyvalue + falsevalue + truevalue + somevalue) * spaces
-local options    = P(":") * spaces * (P(";")^0  * option)^0
-
-local pattern    = (filename_1 + filename_2 + fontname_1 + fontname_2) * subvalue^0 * crapspec^0 * options^0
-
-local function colonized(specification) -- xetex mode
-    list = { }
-    lpeg.match(pattern,specification.specification)
-    list.crap = nil -- style not supported, maybe some day
-    if list.name then
-        specification.name = list.name
-        list.name = nil
-    end
-    if list.lookup then
-        specification.lookup = list.lookup
-        list.lookup = nil
-    end
-    if list.sub then
-        specification.sub = list.sub
-        list.sub = nil
-    end
-    specification.features.normal = fonts.handlers.otf.features.normalize(list)
-    return specification
-end
-
 fonts.definers.registersplit(":",colonized,"cryptic")
-fonts.definers.registersplit("", colonized,"more cryptic") -- catches \font\text=[names]
-
+fonts.definers.registersplit("",colonized,"more cryptic") 
 function fonts.definers.applypostprocessors(tfmdata)
-    local postprocessors = tfmdata.postprocessors
-    if postprocessors then
-        for i=1,#postprocessors do
-            local extrahash = postprocessors[i](tfmdata) -- after scaling etc
-            if type(extrahash) == "string" and extrahash ~= "" then
-                -- e.g. a reencoding needs this
-                extrahash = string.gsub(lower(extrahash),"[^a-z]","-")
-                tfmdata.properties.fullname = format("%s-%s",tfmdata.properties.fullname,extrahash)
-            end
-        end
+  local postprocessors=tfmdata.postprocessors
+  if postprocessors then
+    for i=1,#postprocessors do
+      local extrahash=postprocessors[i](tfmdata) 
+      if type(extrahash)=="string" and extrahash~="" then
+        extrahash=string.gsub(lower(extrahash),"[^a-z]","-")
+        tfmdata.properties.fullname=format("%s-%s",tfmdata.properties.fullname,extrahash)
+      end
     end
-    return tfmdata
+  end
+  return tfmdata
 end
 
 end -- closure
 
 do -- begin closure to overcome local limits and interference
 
-if not modules then modules = { } end modules ['luatex-fonts-ext'] = {
-    version   = 1.001,
-    comment   = "companion to luatex-*.tex",
-    author    = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
-    copyright = "PRAGMA ADE / ConTeXt Development Team",
-    license   = "see context related readme files"
+if not modules then modules={} end modules ['luatex-fonts-ext']={
+  version=1.001,
+  comment="companion to luatex-*.tex",
+  author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+  copyright="PRAGMA ADE / ConTeXt Development Team",
+  license="see context related readme files"
 }
-
 if context then
-    texio.write_nl("fatal error: this module is not for context")
-    os.exit()
+  texio.write_nl("fatal error: this module is not for context")
+  os.exit()
 end
-
-local fonts       = fonts
-local otffeatures = fonts.constructors.newfeatures("otf")
-
--- A few generic extensions.
-
+local fonts=fonts
+local otffeatures=fonts.constructors.newfeatures("otf")
 local function initializeitlc(tfmdata,value)
-    if value then
-        -- the magic 40 and it formula come from Dohyun Kim but we might need another guess
-        local parameters = tfmdata.parameters
-        local italicangle = parameters.italicangle
-        if italicangle and italicangle ~= 0 then
-            local properties = tfmdata.properties
-            local factor = tonumber(value) or 1
-            properties.hasitalics = true
-            properties.autoitalicamount = factor * (parameters.uwidth or 40)/2
-        end
+  if value then
+    local parameters=tfmdata.parameters
+    local italicangle=parameters.italicangle
+    if italicangle and italicangle~=0 then
+      local properties=tfmdata.properties
+      local factor=tonumber(value) or 1
+      properties.hasitalics=true
+      properties.autoitalicamount=factor*(parameters.uwidth or 40)/2
     end
+  end
 end
-
 otffeatures.register {
-    name        = "itlc",
-    description = "italic correction",
-    initializers = {
-        base = initializeitlc,
-        node = initializeitlc,
-    }
+  name="itlc",
+  description="italic correction",
+  initializers={
+    base=initializeitlc,
+    node=initializeitlc,
+  }
 }
-
--- slant and extend
-
 local function initializeslant(tfmdata,value)
-    value = tonumber(value)
-    if not value then
-        value =  0
-    elseif value >  1 then
-        value =  1
-    elseif value < -1 then
-        value = -1
-    end
-    tfmdata.parameters.slantfactor = value
+  value=tonumber(value)
+  if not value then
+    value=0
+  elseif value>1 then
+    value=1
+  elseif value<-1 then
+    value=-1
+  end
+  tfmdata.parameters.slantfactor=value
 end
-
 otffeatures.register {
-    name        = "slant",
-    description = "slant glyphs",
-    initializers = {
-        base = initializeslant,
-        node = initializeslant,
-    }
+  name="slant",
+  description="slant glyphs",
+  initializers={
+    base=initializeslant,
+    node=initializeslant,
+  }
 }
-
 local function initializeextend(tfmdata,value)
-    value = tonumber(value)
-    if not value then
-        value =  0
-    elseif value >  10 then
-        value =  10
-    elseif value < -10 then
-        value = -10
-    end
-    tfmdata.parameters.extendfactor = value
+  value=tonumber(value)
+  if not value then
+    value=0
+  elseif value>10 then
+    value=10
+  elseif value<-10 then
+    value=-10
+  end
+  tfmdata.parameters.extendfactor=value
 end
-
 otffeatures.register {
-    name        = "extend",
-    description = "scale glyphs horizontally",
-    initializers = {
-        base = initializeextend,
-        node = initializeextend,
-    }
+  name="extend",
+  description="scale glyphs horizontally",
+  initializers={
+    base=initializeextend,
+    node=initializeextend,
+  }
 }
-
--- expansion and protrusion
-
-fonts.protrusions        = fonts.protrusions        or { }
-fonts.protrusions.setups = fonts.protrusions.setups or { }
-
-local setups = fonts.protrusions.setups
-
+fonts.protrusions=fonts.protrusions    or {}
+fonts.protrusions.setups=fonts.protrusions.setups or {}
+local setups=fonts.protrusions.setups
 local function initializeprotrusion(tfmdata,value)
-    if value then
-        local setup = setups[value]
-        if setup then
-            local factor, left, right = setup.factor or 1, setup.left or 1, setup.right or 1
-            local emwidth = tfmdata.parameters.quad
-            tfmdata.parameters.protrusion = {
-                auto = true,
-            }
-            for i, chr in next, tfmdata.characters do
-                local v, pl, pr = setup[i], nil, nil
-                if v then
-                    pl, pr = v[1], v[2]
-                end
-                if pl and pl ~= 0 then chr.left_protruding  = left *pl*factor end
-                if pr and pr ~= 0 then chr.right_protruding = right*pr*factor end
-            end
+  if value then
+    local setup=setups[value]
+    if setup then
+      local factor,left,right=setup.factor or 1,setup.left or 1,setup.right or 1
+      local emwidth=tfmdata.parameters.quad
+      tfmdata.parameters.protrusion={
+        auto=true,
+      }
+      for i,chr in next,tfmdata.characters do
+        local v,pl,pr=setup[i],nil,nil
+        if v then
+          pl,pr=v[1],v[2]
         end
+        if pl and pl~=0 then chr.left_protruding=left*pl*factor end
+        if pr and pr~=0 then chr.right_protruding=right*pr*factor end
+      end
     end
+  end
 end
-
 otffeatures.register {
-    name        = "protrusion",
-    description = "shift characters into the left and or right margin",
-    initializers = {
-        base = initializeprotrusion,
-        node = initializeprotrusion,
-    }
+  name="protrusion",
+  description="shift characters into the left and or right margin",
+  initializers={
+    base=initializeprotrusion,
+    node=initializeprotrusion,
+  }
 }
-
-fonts.expansions         = fonts.expansions        or { }
-fonts.expansions.setups  = fonts.expansions.setups or { }
-
-local setups = fonts.expansions.setups
-
+fonts.expansions=fonts.expansions    or {}
+fonts.expansions.setups=fonts.expansions.setups or {}
+local setups=fonts.expansions.setups
 local function initializeexpansion(tfmdata,value)
-    if value then
-        local setup = setups[value]
-        if setup then
-            local factor = setup.factor or 1
-            tfmdata.parameters.expansion = {
-                stretch = 10 * (setup.stretch or 0),
-                shrink  = 10 * (setup.shrink  or 0),
-                step    = 10 * (setup.step    or 0),
-                auto    = true,
-            }
-            for i, chr in next, tfmdata.characters do
-                local v = setup[i]
-                if v and v ~= 0 then
-                    chr.expansion_factor = v*factor
-                else -- can be option
-                    chr.expansion_factor = factor
-                end
-            end
-        end
-    end
+  if value then
+    local setup=setups[value]
+    if setup then
+      local factor=setup.factor or 1
+      tfmdata.parameters.expansion={
+        stretch=10*(setup.stretch or 0),
+        shrink=10*(setup.shrink or 0),
+        step=10*(setup.step  or 0),
+        auto=true,
+      }
+      for i,chr in next,tfmdata.characters do
+        local v=setup[i]
+        if v and v~=0 then
+          chr.expansion_factor=v*factor
+        else 
+          chr.expansion_factor=factor
+        end
+      end
+    end
+  end
 end
-
 otffeatures.register {
-    name        = "expansion",
-    description = "apply hz optimization",
-    initializers = {
-        base = initializeexpansion,
-        node = initializeexpansion,
-    }
+  name="expansion",
+  description="apply hz optimization",
+  initializers={
+    base=initializeexpansion,
+    node=initializeexpansion,
+  }
 }
-
--- left over
-
 function fonts.loggers.onetimemessage() end
-
--- example vectors
-
-local byte = string.byte
-
-fonts.expansions.setups['default'] = {
-
-    stretch = 2, shrink = 2, step = .5, factor = 1,
-
-    [byte('A')] = 0.5, [byte('B')] = 0.7, [byte('C')] = 0.7, [byte('D')] = 0.5, [byte('E')] = 0.7,
-    [byte('F')] = 0.7, [byte('G')] = 0.5, [byte('H')] = 0.7, [byte('K')] = 0.7, [byte('M')] = 0.7,
-    [byte('N')] = 0.7, [byte('O')] = 0.5, [byte('P')] = 0.7, [byte('Q')] = 0.5, [byte('R')] = 0.7,
-    [byte('S')] = 0.7, [byte('U')] = 0.7, [byte('W')] = 0.7, [byte('Z')] = 0.7,
-    [byte('a')] = 0.7, [byte('b')] = 0.7, [byte('c')] = 0.7, [byte('d')] = 0.7, [byte('e')] = 0.7,
-    [byte('g')] = 0.7, [byte('h')] = 0.7, [byte('k')] = 0.7, [byte('m')] = 0.7, [byte('n')] = 0.7,
-    [byte('o')] = 0.7, [byte('p')] = 0.7, [byte('q')] = 0.7, [byte('s')] = 0.7, [byte('u')] = 0.7,
-    [byte('w')] = 0.7, [byte('z')] = 0.7,
-    [byte('2')] = 0.7, [byte('3')] = 0.7, [byte('6')] = 0.7, [byte('8')] = 0.7, [byte('9')] = 0.7,
+local byte=string.byte
+fonts.expansions.setups['default']={
+  stretch=2,shrink=2,step=.5,factor=1,
+  [byte('A')]=0.5,[byte('B')]=0.7,[byte('C')]=0.7,[byte('D')]=0.5,[byte('E')]=0.7,
+  [byte('F')]=0.7,[byte('G')]=0.5,[byte('H')]=0.7,[byte('K')]=0.7,[byte('M')]=0.7,
+  [byte('N')]=0.7,[byte('O')]=0.5,[byte('P')]=0.7,[byte('Q')]=0.5,[byte('R')]=0.7,
+  [byte('S')]=0.7,[byte('U')]=0.7,[byte('W')]=0.7,[byte('Z')]=0.7,
+  [byte('a')]=0.7,[byte('b')]=0.7,[byte('c')]=0.7,[byte('d')]=0.7,[byte('e')]=0.7,
+  [byte('g')]=0.7,[byte('h')]=0.7,[byte('k')]=0.7,[byte('m')]=0.7,[byte('n')]=0.7,
+  [byte('o')]=0.7,[byte('p')]=0.7,[byte('q')]=0.7,[byte('s')]=0.7,[byte('u')]=0.7,
+  [byte('w')]=0.7,[byte('z')]=0.7,
+  [byte('2')]=0.7,[byte('3')]=0.7,[byte('6')]=0.7,[byte('8')]=0.7,[byte('9')]=0.7,
 }
-
-fonts.protrusions.setups['default'] = {
-
-    factor = 1, left = 1, right = 1,
-
-    [0x002C] = { 0, 1    }, -- comma
-    [0x002E] = { 0, 1    }, -- period
-    [0x003A] = { 0, 1    }, -- colon
-    [0x003B] = { 0, 1    }, -- semicolon
-    [0x002D] = { 0, 1    }, -- hyphen
-    [0x2013] = { 0, 0.50 }, -- endash
-    [0x2014] = { 0, 0.33 }, -- emdash
-    [0x3001] = { 0, 1    }, -- ideographic comma      、
-    [0x3002] = { 0, 1    }, -- ideographic full stop  。
-    [0x060C] = { 0, 1    }, -- arabic comma           ،
-    [0x061B] = { 0, 1    }, -- arabic semicolon       ؛
-    [0x06D4] = { 0, 1    }, -- arabic full stop       ۔
-
+fonts.protrusions.setups['default']={
+  factor=1,left=1,right=1,
+  [0x002C]={ 0,1  },
+  [0x002E]={ 0,1  },
+  [0x003A]={ 0,1  },
+  [0x003B]={ 0,1  },
+  [0x002D]={ 0,1  },
+  [0x2013]={ 0,0.50 },
+  [0x2014]={ 0,0.33 },
+  [0x3001]={ 0,1  },
+  [0x3002]={ 0,1  },
+  [0x060C]={ 0,1  },
+  [0x061B]={ 0,1  },
+  [0x06D4]={ 0,1  },
 }
-
--- normalizer
-
-fonts.handlers.otf.features.normalize = function(t)
-    if t.rand then
-        t.rand = "random"
-    end
-    return t
+fonts.handlers.otf.features.normalize=function(t)
+  if t.rand then
+    t.rand="random"
+  end
+  return t
 end
-
--- bonus
-
 function fonts.helpers.nametoslot(name)
-    local t = type(name)
-    if t == "string" then
-        local tfmdata = fonts.hashes.identifiers[currentfont()]
-        local shared  = tfmdata and tfmdata.shared
-        local fntdata = shared and shared.rawdata
-        return fntdata and fntdata.resources.unicodes[name]
-    elseif t == "number" then
-        return n
-    end
+  local t=type(name)
+  if t=="string" then
+    local tfmdata=fonts.hashes.identifiers[currentfont()]
+    local shared=tfmdata and tfmdata.shared
+    local fntdata=shared and shared.rawdata
+    return fntdata and fntdata.resources.unicodes[name]
+  elseif t=="number" then
+    return n
+  end
 end
-
--- \font\test=file:somefont:reencode=mymessup
---
---  fonts.encodings.reencodings.mymessup = {
---      [109] = 110, -- m
---      [110] = 109, -- n
---  }
-
-fonts.encodings             = fonts.encodings or { }
-local reencodings           = { }
-fonts.encodings.reencodings = reencodings
-
+fonts.encodings=fonts.encodings or {}
+local reencodings={}
+fonts.encodings.reencodings=reencodings
 local function specialreencode(tfmdata,value)
-    -- we forget about kerns as we assume symbols and we
-    -- could issue a message if ther are kerns but it's
-    -- a hack anyway so we odn't care too much here
-    local encoding = value and reencodings[value]
-    if encoding then
-        local temp = { }
-        local char = tfmdata.characters
-        for k, v in next, encoding do
-            temp[k] = char[v]
-        end
-        for k, v in next, temp do
-            char[k] = temp[k]
-        end
-        -- if we use the font otherwise luatex gets confused so
-        -- we return an additional hash component for fullname
-        return string.format("reencoded:%s",value)
+  local encoding=value and reencodings[value]
+  if encoding then
+    local temp={}
+    local char=tfmdata.characters
+    for k,v in next,encoding do
+      temp[k]=char[v]
+    end
+    for k,v in next,temp do
+      char[k]=temp[k]
     end
+    return string.format("reencoded:%s",value)
+  end
 end
-
 local function reencode(tfmdata,value)
-    tfmdata.postprocessors = tfmdata.postprocessors or { }
-    table.insert(tfmdata.postprocessors,
-        function(tfmdata)
-            return specialreencode(tfmdata,value)
-        end
-    )
+  tfmdata.postprocessors=tfmdata.postprocessors or {}
+  table.insert(tfmdata.postprocessors,
+    function(tfmdata)
+      return specialreencode(tfmdata,value)
+    end
+  )
 end
-
 otffeatures.register {
-    name         = "reencode",
-    description  = "reencode characters",
-    manipulators = {
-        base = reencode,
-        node = reencode,
-    }
+  name="reencode",
+  description="reencode characters",
+  manipulators={
+    base=reencode,
+    node=reencode,
+  }
 }
 
 end -- closure
 
 do -- begin closure to overcome local limits and interference
 
-if not modules then modules = { } end modules ['luatex-fonts-cbk'] = {
-    version   = 1.001,
-    comment   = "companion to luatex-*.tex",
-    author    = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
-    copyright = "PRAGMA ADE / ConTeXt Development Team",
-    license   = "see context related readme files"
+if not modules then modules={} end modules ['luatex-fonts-cbk']={
+  version=1.001,
+  comment="companion to luatex-*.tex",
+  author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+  copyright="PRAGMA ADE / ConTeXt Development Team",
+  license="see context related readme files"
 }
-
 if context then
-    texio.write_nl("fatal error: this module is not for context")
-    os.exit()
+  texio.write_nl("fatal error: this module is not for context")
+  os.exit()
 end
-
-local fonts = fonts
-local nodes = nodes
-
--- Fonts: (might move to node-gef.lua)
-
-local traverse_id = node.traverse_id
-local glyph_code  = nodes.nodecodes.glyph
-
+local fonts=fonts
+local nodes=nodes
+local traverse_id=node.traverse_id
+local glyph_code=nodes.nodecodes.glyph
 function nodes.handlers.characters(head)
-    local fontdata = fonts.hashes.identifiers
-    if fontdata then
-        local usedfonts, done, prevfont = { }, false, nil
-        for n in traverse_id(glyph_code,head) do
-            local font = n.font
-            if font ~= prevfont then
-                prevfont = font
-                local used = usedfonts[font]
-                if not used then
-                    local tfmdata = fontdata[font] --
-                    if tfmdata then
-                        local shared = tfmdata.shared -- we need to check shared, only when same features
-                        if shared then
-                            local processors = shared.processes
-                            if processors and #processors > 0 then
-                                usedfonts[font] = processors
-                                done = true
-                            end
-                        end
-                    end
-                end
-            end
-        end
-        if done then
-            for font, processors in next, usedfonts do
-                for i=1,#processors do
-                    local h, d = processors[i](head,font,0)
-                    head, done = h or head, done or d
-                end
-            end
-        end
-        return head, true
-    else
-        return head, false
-    end
+  local fontdata=fonts.hashes.identifiers
+  if fontdata then
+    local usedfonts,done,prevfont={},false,nil
+    for n in traverse_id(glyph_code,head) do
+      local font=n.font
+      if font~=prevfont then
+        prevfont=font
+        local used=usedfonts[font]
+        if not used then
+          local tfmdata=fontdata[font] 
+          if tfmdata then
+            local shared=tfmdata.shared 
+            if shared then
+              local processors=shared.processes
+              if processors and #processors>0 then
+                usedfonts[font]=processors
+                done=true
+              end
+            end
+          end
+        end
+      end
+    end
+    if done then
+      for font,processors in next,usedfonts do
+        for i=1,#processors do
+          local h,d=processors[i](head,font,0)
+          head,done=h or head,done or d
+        end
+      end
+    end
+    return head,true
+  else
+    return head,false
+  end
 end
-
 function nodes.simple_font_handler(head)
---  lang.hyphenate(head)
-    head = nodes.handlers.characters(head)
-    nodes.injections.handler(head)
-    nodes.handlers.protectglyphs(head)
-    head = node.ligaturing(head)
-    head = node.kerning(head)
-    return head
+  head=nodes.handlers.characters(head)
+  nodes.injections.handler(head)
+  nodes.handlers.protectglyphs(head)
+  head=node.ligaturing(head)
+  head=node.kerning(head)
+  return head
 end
 
 end -- closure
diff --git a/tex/generic/context/luatex/luatex-fonts.lua b/tex/generic/context/luatex/luatex-fonts.lua
index 6b502cd24..f0ff3e12d 100644
--- a/tex/generic/context/luatex/luatex-fonts.lua
+++ b/tex/generic/context/luatex/luatex-fonts.lua
@@ -6,21 +6,16 @@ if not modules then modules = { } end modules ['luatex-fonts'] = {
     license   = "see context related readme files"
 }
 
--- The following code isolates the generic ConTeXt code from already
--- defined or to be defined namespaces. This is the reference loader
--- for plain, but the generic code is also used in luaotfload (which
--- is is a file meant for latex) and that is maintained by Khaled
+-- The following code isolates the generic context code from already defined or to be defined
+-- namespaces. This is the reference loader for plain, but the generic code is also used in
+-- luaotfload (which is is a file meant for latex) and that used to be maintained by Khaled
 -- Hosny. We do our best to keep the interface as clean as possible.
 --
--- The code base is rather stable now, especially if you stay away from
--- the non generic code. All relevant data is organized in tables within
--- the main table of a font instance. There are a few places where in
--- context other code is plugged in, but this does not affect the core
--- code. Users can (given that their macro package provides this option)
--- access the font data (characters, descriptions, properties, parameters,
--- etc) of this main table.
---
--- Todo: all global namespaces in called modules will get local shortcuts.
+-- The code base is rather stable now, especially if you stay away from the non generic code. All
+-- relevant data is organized in tables within the main table of a font instance. There are a few
+-- places where in context other code is plugged in, but this does not affect the core code. Users
+-- can (given that their macro package provides this option) access the font data (characters,
+-- descriptions, properties, parameters, etc) of this main table.
 
 utf = utf or unicode.utf8
 
@@ -67,20 +62,21 @@ end
 
 local whatever = generic_context.push_namespaces()
 
--- We keep track of load time by storing the current time. That
--- way we cannot be accused of slowing down loading too much.
+-- We keep track of load time by storing the current time. That way we cannot be accused
+-- of slowing down loading too much. Anyhow, there is no reason for this library to perform
+-- slower in any other package as it does in context.
 --
--- Please don't update to this version without proper testing. It
--- might be that this version lags behind stock context and the only
--- formal release takes place around tex live code freeze.
+-- Please don't update to this version without proper testing. It might be that this version
+-- lags behind stock context and the only formal release takes place around tex live code
+-- freeze.
 
 local starttime = os.gettimeofday()
 
--- As we don't use the ConTeXt file searching, we need to
--- initialize the kpse library. As the progname can be anything
--- we will temporary switch to the ConTeXt namespace if needed.
--- Just adding the context paths to the path specification is
--- somewhat faster
+-- As we don't use the context file searching, we need to initialize the kpse library. As the
+-- progname can be anything we will temporary switch to the context namespace if needed. Just
+-- adding the context paths to the path specification is somewhat faster.
+--
+-- Now, with lua 5.2 being used we might create a special ENV for this.
 
 -- kpse.set_program_name("luatex")
 
@@ -128,43 +124,51 @@ if fonts then
 
 else
 
-    -- The following helpers are a bit overkill but I don't want to
-    -- mess up ConTeXt code for the sake of general generality. Around
-    -- version 1.0 there will be an official api defined.
-
-    loadmodule('l-lpeg.lua')
-    loadmodule('l-function.lua')
-    loadmodule('l-string.lua')
-    loadmodule('l-table.lua')
-    loadmodule('l-boolean.lua')
-    loadmodule('l-math.lua')
-    loadmodule('l-file.lua')
-    loadmodule('l-io.lua')
-
-    -- The following modules contain code that is either not used
-    -- at all outside ConTeXt or will fail when enabled due to
-    -- lack of other modules.
-
-    -- First we load a few helper modules. This is about the miminum
-    -- needed to let the font modules do their work. Don't depend on
-    -- their functions as we might strip them in future versions of
-    -- this generic variant.
+    -- The following helpers are a bit overkill but I don't want to mess up context code for the
+    -- sake of general generality. Around version 1.0 there will be an official api defined.
+    --
+    -- So, I will strip these libraries and see what is really needed so that we don't have this
+    -- overhead in the generic modules. The next section is only there for the packager, so stick
+    -- to using luatex-fonts with luatex-fonts-merged.lua and forget about the rest. The following
+    -- list might change without prior notice (for instance because we shuffled code around).
+
+    ----------("l-lua.lua")
+    loadmodule("l-lpeg.lua")
+    loadmodule("l-function.lua")
+    loadmodule("l-string.lua")
+    loadmodule("l-table.lua")
+    loadmodule("l-io.lua")
+    ----------("l-number.lua")
+    ----------("l-set.lua")
+    ----------("l-os.lua")
+    loadmodule("l-file.lua")
+    ----------("l-md5.lua")
+    ----------("l-url.lua")
+    ----------("l-dir.lua")
+    loadmodule("l-boolean.lua")
+    ----------("l-unicode.lua")
+    loadmodule("l-math.lua")
+
+
+    -- The following modules contain code that is either not used at all outside context or will fail
+    -- when enabled due to lack of other modules.
+
+    -- First we load a few helper modules. This is about the miminum needed to let the font modules do
+    -- their work. Don't depend on their functions as we might strip them in future versions of his
+    -- generic variant.
 
     loadmodule('luatex-basics-gen.lua')
     loadmodule('data-con.lua')
 
-    -- We do need some basic node support. The code in there is not for
-    -- general use as it might change.
+    -- We do need some basic node support. The code in there is not for general use as it might change.
 
     loadmodule('luatex-basics-nod.lua')
 
-    -- Now come the font modules that deal with traditional TeX fonts
-    -- as well as open type fonts. We only support OpenType fonts here.
+    -- Now come the font modules that deal with traditional tex fonts as well as open type fonts. We only
+    -- support OpenType fonts here.
     --
-    -- The font database file (if used at all) must be put someplace
-    -- visible for kpse and is not shared with ConTeXt. The mtx-fonts
-    -- script can be used to genate this file (using the --names
-    -- option).
+    -- The font database file (if used at all) must be put someplace visible for kpse and is not shared
+    -- with context. The mtx-fonts script can be used to genate this file (using the --names option).
 
     loadmodule('font-ini.lua')
     loadmodule('font-con.lua')
@@ -179,14 +183,14 @@ else
     loadmodule('node-inj.lua')         -- will be replaced (luatex >= .70)
     loadmodule('font-ota.lua')
     loadmodule('font-otn.lua')
- -- loadmodule('luatex-fonts-chr.lua')
+    ----------('luatex-fonts-chr.lua')
     loadmodule('luatex-fonts-lua.lua')
     loadmodule('font-def.lua')
     loadmodule('luatex-fonts-def.lua')
     loadmodule('luatex-fonts-ext.lua') -- some extensions
 
-    -- We need to plug into a callback and the following module implements
-    -- the handlers. Actual plugging in happens later.
+    -- We need to plug into a callback and the following module implements the handlers. Actual plugging
+    -- in happens later.
 
     loadmodule('luatex-fonts-cbk.lua')
 
@@ -194,9 +198,8 @@ end
 
 resolvers.loadmodule = loadmodule
 
--- In order to deal with the fonts we need to initialize some
--- callbacks. One can overload them later on if needed. First
--- a bit of abstraction.
+-- In order to deal with the fonts we need to initialize some callbacks. One can overload them later on if
+-- needed. First a bit of abstraction.
 
 generic_context.callback_ligaturing           = false
 generic_context.callback_kerning              = false
@@ -204,9 +207,10 @@ generic_context.callback_pre_linebreak_filter = nodes.simple_font_handler
 generic_context.callback_hpack_filter         = nodes.simple_font_handler
 generic_context.callback_define_font          = fonts.definers.read
 
--- The next ones can be done at a different moment if needed. You can create
--- a generic_context namespace and set no_callbacks_yet to true, load this
--- module, and enable the callbacks later.
+-- The next ones can be done at a different moment if needed. You can create a generic_context namespace
+-- and set no_callbacks_yet to true, load this module, and enable the callbacks later. So, there is really
+-- *no* need to create a alternative for luatex-fonts.lua and luatex-fonts-merged.lua: just load this one
+-- and overload if needed.
 
 if not generic_context.no_callbacks_yet then