beta 2009.11.24 10:13

12 files changed, 89 insertions, 2481 deletions

diff --git a/tex/context/base/colo-ini.lua b/tex/context/base/colo-ini.lua
index fa667c453..9f4331a1b 100644
--- a/tex/context/base/colo-ini.lua
+++ b/tex/context/base/colo-ini.lua
@@ -34,18 +34,18 @@ local function definecolor(name, ca, global)
             if trace_define then
                 commands.writestatus("color","define global color '%s' with attribute: %s",name,ca)
             end
-            context.colordefagc(name,ca) -- texsprint(ctxcatcodes,"\\colordefagc{",name,"}{",ca,"}")
+            context.colordefagc(name,ca)
         else
             if trace_define then
                 commands.writestatus("color","define local color '%s' with attribute: %s",name,ca)
             end
-            context.colordefalc(name,ca) -- texsprint(ctxcatcodes,"\\colordefalc{",name,"}{",ca,"}")
+            context.colordefalc(name,ca)
         end
     else
         if global then
-            context.colordefrgc(name) -- texsprint(ctxcatcodes,"\\colordefrgc{",name,"}")
+            context.colordefrgc(name)
         else
-            context.colordefrlc(name) -- texsprint(ctxcatcodes,"\\colordefrlc{",name,"}")
+            context.colordefrlc(name)
         end
     end
 end
@@ -56,18 +56,18 @@ local function inheritcolor(name, ca, global)
             if trace_define then
                 commands.writestatus("color","inherit global color '%s' with attribute: %s",name,ca)
             end
-            context.colordeffgc(name,ca) -- texsprint(ctxcatcodes,"\\colordeffgc{",name,"}{",ca,"}")
+            context.colordeffgc(name,ca)
         else
             if trace_define then
                 commands.writestatus("color","inherit local color '%s' with attribute: %s",name,ca)
             end
-            context.colordefflc(name,ca) -- texsprint(ctxcatcodes,"\\colordefflc{",name,"}{",ca,"}")
+            context.colordefflc(name,ca)
         end
     else
         if global then
-            context.colordefrgc(name) -- texsprint(ctxcatcodes,"\\colordefrgc{",name,"}")
+            context.colordefrgc(name)
         else
-            context.colordefrlc(name) -- texsprint(ctxcatcodes,"\\colordefrlc{",name,"}")
+            context.colordefrlc(name)
         end
     end
 end
@@ -78,18 +78,18 @@ local function definetransparent(name, ta, global)
             if trace_define then
                 commands.writestatus("color","define global transparency '%s' with attribute: %s",name,ta)
             end
-            context.colordefagt(name,ta) -- texsprint(ctxcatcodes,"\\colordefagt{",name,"}{",ta,"}")
+            context.colordefagt(name,ta)
         else
             if trace_define then
                 commands.writestatus("color","define local transparency '%s' with attribute: %s",name,ta)
             end
-            context.colordefalt(name,ta) -- texsprint(ctxcatcodes,"\\colordefalt{",name,"}{",ta,"}")
+            context.colordefalt(name,ta)
         end
     else
         if global then
-            context.colordefrgt(name) -- texsprint(ctxcatcodes,"\\colordefrgt{",name,"}")
+            context.colordefrgt(name)
         else
-            context.colordefrlt(name) -- texsprint(ctxcatcodes,"\\colordefrlt{",name,"}")
+            context.colordefrlt(name)
         end
     end
 end
@@ -100,18 +100,18 @@ local function inherittransparent(name, ta, global)
             if trace_define then
                 commands.writestatus("color","inherit global transparency '%s' with attribute: %s",name,ta)
             end
-            context.colordeffgt(name,ta) -- texsprint(ctxcatcodes,"\\colordeffgt{",name,"}{",ta,"}")
+            context.colordeffgt(name,ta)
         else
             if trace_define then
                 commands.writestatus("color","inherit local transparency '%s' with attribute: %s",name,ta)
             end
-            context.colordefflt(name,ta) -- texsprint(ctxcatcodes,"\\colordefflt{",name,"}{",ta,"}")
+            context.colordefflt(name,ta)
         end
     else
         if global then
-            context.colordefrgt(name) -- texsprint(ctxcatcodes,"\\colordefrgt{",name,"}")
+            context.colordefrgt(name)
         else
-            context.colordefrlt(name) -- texsprint(ctxcatcodes,"\\colordefrlt{",name,"}")
+            context.colordefrlt(name)
         end
     end
 end
diff --git a/tex/context/base/cont-new.tex b/tex/context/base/cont-new.tex
index 3aafa79e0..d81b5e522 100644
--- a/tex/context/base/cont-new.tex
+++ b/tex/context/base/cont-new.tex
@@ -11,7 +11,7 @@
 %C therefore copyrighted by \PRAGMA. See mreadme.pdf for
 %C details.
 
-\newcontextversion{2009.11.23 11:49}
+\newcontextversion{2009.11.24 10:13}
 
 %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/context.tex b/tex/context/base/context.tex
index 7e19ccd06..4347a8148 100644
--- a/tex/context/base/context.tex
+++ b/tex/context/base/context.tex
@@ -20,7 +20,7 @@
 %D your styles an modules.
 
 \edef\contextformat {\jobname}
-\edef\contextversion{2009.11.23 11:49}
+\edef\contextversion{2009.11.24 10:13}
 
 %D For those who want to use this:
 
diff --git a/tex/context/base/core-fil.mkiv b/tex/context/base/core-fil.mkiv
index 14154fca4..90a6bc038 100644
--- a/tex/context/base/core-fil.mkiv
+++ b/tex/context/base/core-fil.mkiv
@@ -214,6 +214,9 @@
 \def\moduleparameter     #1#2{\executeifdefined{\??md:#1:#2}\s!empty}
 \def\currentmoduleparameter#1{\executeifdefined{\??md:\currentmodule:#1}\s!empty}
 
+\def\useluamodule  [#1]{\ctxlua{dofile(resolvers.findctxfile("#1",\number\maxreadlevel))}}
+\def\luaenvironment #1 {\ctxlua{dofile(resolvers.findctxfile("#1",\number\maxreadlevel))}}
+
 % \usemodule[newmml]
 % \usemodule[newmml][a=b]
 % \usemodule[x][newmml]
diff --git a/tex/context/base/font-mis.lua b/tex/context/base/font-mis.lua
index 40160e49d..37a731735 100644
--- a/tex/context/base/font-mis.lua
+++ b/tex/context/base/font-mis.lua
@@ -11,7 +11,7 @@ local lower, strip = string.lower, string.strip
 
 fonts.otf = fonts.otf or { }
 
-fonts.otf.version = fonts.otf.version or 2.635
+fonts.otf.version = fonts.otf.version or 2.636
 fonts.otf.pack    = true
 fonts.otf.cache   = containers.define("fonts", "otf", fonts.otf.version, true)
 
diff --git a/tex/context/base/font-otf.lua b/tex/context/base/font-otf.lua
index 51091b7da..6900b8445 100644
--- a/tex/context/base/font-otf.lua
+++ b/tex/context/base/font-otf.lua
@@ -83,7 +83,7 @@ otf.features.default = otf.features.default or { }
 otf.enhancers        = otf.enhancers        or { }
 otf.glists           = { "gsub", "gpos" }
 
-otf.version          = 2.635 -- beware: also sync font-mis.lua
+otf.version          = 2.636 -- beware: also sync font-mis.lua
 otf.pack             = true  -- beware: also sync font-mis.lua
 otf.syncspace        = true
 otf.notdef           = false
diff --git a/tex/context/base/font-pat.lua b/tex/context/base/font-pat.lua
index 65e8355c7..e720af79c 100644
--- a/tex/context/base/font-pat.lua
+++ b/tex/context/base/font-pat.lua
@@ -6,7 +6,7 @@ if not modules then modules = { } end modules ['font-pat'] = {
     license   = "see context related readme files"
 }
 
-local match, lower = string.match, string.lower
+local match, lower, find = string.match, string.lower, string.find
 
 local trace_loading = false  trackers.register("otf.loading", function(v) trace_loading = v end)
 
@@ -106,6 +106,17 @@ local function patch_domh(data,filename,threshold)
             m.DisplayOperatorMinHeight = threshold
         end
     end
+    for _, g in pairs(data.glyphs) do
+        local name = g.name
+        if find(name,"^integral$") or find(name,"^integral%.vsize") then
+            local width, italic = g.width or 0, g.italic_correction or 0
+            local newwidth = width - italic
+            if trace_loading then
+                logs.report("load otf","patching width of %s: %s (width) - %s (italic) = %s",name,width,italic,newwidth)
+            end
+            g.width = newwidth
+        end
+    end
 end
 
 patches["cambria"]  = function(data,filename) patch_domh(data,filename,2800) end
diff --git a/tex/context/base/l-xml.lua b/tex/context/base/l-xml.lua
index 8d1284daa..921a4edb1 100644
--- a/tex/context/base/l-xml.lua
+++ b/tex/context/base/l-xml.lua
@@ -1,2456 +1,23 @@
 if not modules then modules = { } end modules ['l-xml'] = {
     version   = 1.001,
-    comment   = "this module is the basis for the lxml-* ones",
+    comment   = "this module is replaced by the lxml-* ones",
     author    = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
     copyright = "PRAGMA ADE / ConTeXt Development Team",
     license   = "see context related readme files"
 }
 
--- RJ: key=value ... lpeg.Ca(lpeg.Cc({}) * (pattern-producing-key-and-value / rawset)^0)
+-- We asume that the helper modules l-*.lua are loaded
+-- already. But anyway if you use mtxrun to run your script
+-- all is taken care of.
 
--- this file has been replaced by the lxml-* files and in due time this will become
--- a stub (currently it's used in some workflows)
-
---[[ldx--
-<p>The parser used here is inspired by the variant discussed in the lua book, but
-handles comment and processing instructions, has a different structure, provides
-parent access; a first version used different tricky but was less optimized to we
-went this route. First we had a find based parser, now we have an <l n='lpeg'/> based one.
-The find based parser can be found in l-xml-edu.lua along with other older code.</p>
-
-<p>Expecially the lpath code is experimental, we will support some of xpath, but
-only things that make sense for us; as compensation it is possible to hook in your
-own functions. Apart from preprocessing content for <l n='context'/> we also need
-this module for process management, like handling <l n='ctx'/> and <l n='rlx'/>
-files.</p>
-
-<typing>
-a/b/c /*/c
-a/b/c/first() a/b/c/last() a/b/c/index(n) a/b/c/index(-n)
-a/b/c/text() a/b/c/text(1) a/b/c/text(-1) a/b/c/text(n)
-</typing>
-
-<p>Beware, the interface may change. For instance at, ns, tg, dt may get more
-verbose names. Once the code is stable we will also remove some tracing and
-optimize the code.</p>
---ldx]]--
-
-xml = xml or { }
-tex = tex or { }
-
-local concat, remove, insert = table.concat, table.remove, table.insert
-local type, next, tonumber, tostring, setmetatable, loadstring = type, next, tonumber, tostring, setmetatable, loadstring
-local format, lower, gmatch, gsub, find = string.format, string.lower, string.gmatch, string.gsub, string.find
-
---[[ldx--
-<p>This module can be used stand alone but also inside <l n='mkiv'/> in
-which case it hooks into the tracker code. Therefore we provide a few
-functions that set the tracers.</p>
---ldx]]--
-
-local trace_lpath, trace_remap = false, false
-
-if trackers then
-    trackers.register("xml.lpath", function(v) trace_lpath = v end)
-    trackers.register("xml.remap", function(v) trace_remap = v end)
-end
-
-function xml.settrace(str,value)
-    if str == "lpath" then
-        trace_lpath = value or false
-    elseif str == "remap" then
-        trace_remap = value or false
-    end
-end
-
---[[ldx--
-<p>First a hack to enable namespace resolving. A namespace is characterized by
-a <l n='url'/>. The following function associates a namespace prefix with a
-pattern. We use <l n='lpeg'/>, which in this case is more than twice as fast as a
-find based solution where we loop over an array of patterns. Less code and
-much cleaner.</p>
---ldx]]--
-
-xml.xmlns = xml.xmlns or { }
-
-do
-
-    local check = lpeg.P(false)
-    local parse = check
-
-    --[[ldx--
-    <p>The next function associates a namespace prefix with an <l n='url'/>. This
-    normally happens independent of parsing.</p>
-
-    <typing>
-    xml.registerns("mml","mathml")
-    </typing>
-    --ldx]]--
-
-    function xml.registerns(namespace, pattern) -- pattern can be an lpeg
-        check = check + lpeg.C(lpeg.P(lower(pattern))) / namespace
-        parse = lpeg.P { lpeg.P(check) + 1 * lpeg.V(1) }
-    end
-
-    --[[ldx--
-    <p>The next function also registers a namespace, but this time we map a
-    given namespace prefix onto a registered one, using the given
-    <l n='url'/>. This used for attributes like <t>xmlns:m</t>.</p>
-
-    <typing>
-    xml.checkns("m","http://www.w3.org/mathml")
-    </typing>
-    --ldx]]--
-
-    function xml.checkns(namespace,url)
-        local ns = parse:match(lower(url))
-        if ns and namespace ~= ns then
-            xml.xmlns[namespace] = ns
-        end
-    end
-
-    --[[ldx--
-    <p>Next we provide a way to turn an <l n='url'/> into a registered
-    namespace. This used for the <t>xmlns</t> attribute.</p>
-
-    <typing>
-    resolvedns = xml.resolvens("http://www.w3.org/mathml")
-    </typing>
-
-    This returns <t>mml</t>.
-    --ldx]]--
-
-    function xml.resolvens(url)
-         return parse:match(lower(url)) or ""
-    end
-
-    --[[ldx--
-    <p>A namespace in an element can be remapped onto the registered
-    one efficiently by using the <t>xml.xmlns</t> table.</p>
-    --ldx]]--
-
-end
-
---[[ldx--
-<p>This version uses <l n='lpeg'/>. We follow the same approach as before, stack and top and
-such. This version is about twice as fast which is mostly due to the fact that
-we don't have to prepare the stream for cdata, doctype etc etc. This variant is
-is dedicated to Luigi Scarso, who challenged me with 40 megabyte <l n='xml'/> files that
-took 12.5 seconds to load (1.5 for file io and the rest for tree building). With
-the <l n='lpeg'/> implementation we got that down to less 7.3 seconds. Loading the 14
-<l n='context'/> interface definition files (2.6 meg) went down from 1.05 seconds to 0.55.</p>
-
-<p>Next comes the parser. The rather messy doctype definition comes in many
-disguises so it is no surprice that later on have to dedicate quite some
-<l n='lpeg'/> code to it.</p>
-
-<typing>
-<!DOCTYPE Something PUBLIC "... ..." "..." [ ... ] >
-<!DOCTYPE Something PUBLIC "... ..." "..." >
-<!DOCTYPE Something SYSTEM "... ..." [ ... ] >
-<!DOCTYPE Something SYSTEM "... ..." >
-<!DOCTYPE Something [ ... ] >
-<!DOCTYPE Something >
-</typing>
-
-<p>The code may look a bit complex but this is mostly due to the fact that we
-resolve namespaces and attach metatables. There is only one public function:</p>
-
-<typing>
-local x = xml.convert(somestring)
-</typing>
-
-<p>An optional second boolean argument tells this function not to create a root
-element.</p>
-
-<p>Valid entities are:</p>
-
-<typing>
-<!ENTITY xxxx SYSTEM "yyyy" NDATA zzzz>
-<!ENTITY xxxx PUBLIC "yyyy" >
-<!ENTITY xxxx "yyyy" >
-</typing>
---ldx]]--
-
-xml.strip_cm_and_dt = false -- an extra global flag, in case we have many includes
-
-do
-
-    -- not just one big nested table capture (lpeg overflow)
-
-    local nsremap, resolvens = xml.xmlns, xml.resolvens
-
-    local stack, top, dt, at, xmlns, errorstr, entities = {}, {}, {}, {}, {}, nil, {}
-
-    local mt = { __tostring = xml.text }
-
-    function xml.check_error(top,toclose)
-        return ""
-    end
-
-    local strip   = false
-    local cleanup = false
-
-    function xml.set_text_cleanup(fnc)
-        cleanup = fnc
-    end
-
-    local function add_attribute(namespace,tag,value)
-        if cleanup and #value > 0 then
-            value = cleanup(value) -- new
-        end
-        if tag == "xmlns" then
-            xmlns[#xmlns+1] = resolvens(value)
-            at[tag] = value
-        elseif namespace == "xmlns" then
-            xml.checkns(tag,value)
-            at["xmlns:" .. tag] = value
-        else
-            at[tag] = value
-        end
-    end
-    local function add_begin(spacing, namespace, tag)
-        if #spacing > 0 then
-            dt[#dt+1] = spacing
-        end
-        local resolved = (namespace == "" and xmlns[#xmlns]) or nsremap[namespace] or namespace
-        top = { ns=namespace or "", rn=resolved, tg=tag, at=at, dt={}, __p__ = stack[#stack] }
-        setmetatable(top, mt)
-        dt = top.dt
-        stack[#stack+1] = top
-        at = { }
-    end
-    local function add_end(spacing, namespace, tag)
-        if #spacing > 0 then
-            dt[#dt+1] = spacing
-        end
-        local toclose = remove(stack)
-        top = stack[#stack]
-        if #stack < 1 then
-            errorstr = format("nothing to close with %s %s", tag, xml.check_error(top,toclose) or "")
-        elseif toclose.tg ~= tag then -- no namespace check
-            errorstr = format("unable to close %s with %s %s", toclose.tg, tag, xml.check_error(top,toclose) or "")
-        end
-        dt = top.dt
-        dt[#dt+1] = toclose
-dt[0] = top
-        if toclose.at.xmlns then
-            remove(xmlns)
-        end
-    end
-    local function add_empty(spacing, namespace, tag)
-        if #spacing > 0 then
-            dt[#dt+1] = spacing
-        end
-        local resolved = (namespace == "" and xmlns[#xmlns]) or nsremap[namespace] or namespace
-        top = stack[#stack]
-        dt = top.dt
-        local t = { ns=namespace or "", rn=resolved, tg=tag, at=at, dt={}, __p__ = top }
-        dt[#dt+1] = t
-        setmetatable(t, mt)
-        if at.xmlns then
-            remove(xmlns)
-        end
-        at = { }
-    end
-    local function add_text(text)
-        if cleanup and #text > 0 then
-            dt[#dt+1] = cleanup(text)
-        else
-            dt[#dt+1] = text
-        end
-    end
-    local function add_special(what, spacing, text)
-        if #spacing > 0 then
-            dt[#dt+1] = spacing
-        end
-        if strip and (what == "@cm@" or what == "@dt@") then
-            -- forget it
-        else
-            dt[#dt+1] = { special=true, ns="", tg=what, dt={text} }
-        end
-    end
-    local function set_message(txt)
-        errorstr = "garbage at the end of the file: " .. gsub(txt,"([ \n\r\t]*)","")
-    end
-
-    local P, S, R, C, V = lpeg.P, lpeg.S, lpeg.R, lpeg.C, lpeg.V
-
-    local space            = S(' \r\n\t')
-    local open             = P('<')
-    local close            = P('>')
-    local squote           = S("'")
-    local dquote           = S('"')
-    local equal            = P('=')
-    local slash            = P('/')
-    local colon            = P(':')
-    local valid            = R('az', 'AZ', '09') + S('_-.')
-    local name_yes         = C(valid^1) * colon * C(valid^1)
-    local name_nop         = C(P(true)) * C(valid^1)
-    local name             = name_yes + name_nop
-
-    local utfbom           = P('\000\000\254\255') + P('\255\254\000\000') +
-                             P('\255\254') + P('\254\255') + P('\239\187\191') -- no capture
-
-    local spacing          = C(space^0)
-    local justtext         = C((1-open)^1)
-    local somespace        = space^1
-    local optionalspace    = space^0
-
-    local value            = (squote * C((1 - squote)^0) * squote) + (dquote * C((1 - dquote)^0) * dquote)
-    local attribute        = (somespace * name * optionalspace * equal * optionalspace * value) / add_attribute
-    local attributes       = attribute^0
-
-    local text             = justtext / add_text
-    local balanced         = P { "[" * ((1 - S("[]")) + V(1))^0 * "]" } -- taken from lpeg manual, () example
-
-    local emptyelement     = (spacing * open         * name * attributes * optionalspace * slash * close) / add_empty
-    local beginelement     = (spacing * open         * name * attributes * optionalspace         * close) / add_begin
-    local endelement       = (spacing * open * slash * name              * optionalspace         * close) / add_end
-
-    local begincomment     = open * P("!--")
-    local endcomment       = P("--") * close
-    local begininstruction = open * P("?")
-    local endinstruction   = P("?") * close
-    local begincdata       = open * P("![CDATA[")
-    local endcdata         = P("]]") * close
-
-    local someinstruction  = C((1 - endinstruction)^0)
-    local somecomment      = C((1 - endcomment    )^0)
-    local somecdata        = C((1 - endcdata      )^0)
-
-    local function normalentity(k,v  ) entities[k] = v end
-    local function systementity(k,v,n) entities[k] = v end
-    local function publicentity(k,v,n) entities[k] = v end
-
-    local begindoctype     = open * P("!DOCTYPE")
-    local enddoctype       = close
-    local beginset         = P("[")
-    local endset           = P("]")
-    local doctypename      = C((1-somespace-close)^0)
-    local elementdoctype   = optionalspace * P("<!ELEMENT") * (1-close)^0 * close
-
-    local normalentitytype = (doctypename * somespace * value)/normalentity
-    local publicentitytype = (doctypename * somespace * P("PUBLIC") * somespace * value)/publicentity
-    local systementitytype = (doctypename * somespace * P("SYSTEM") * somespace * value * somespace * P("NDATA") * somespace * doctypename)/systementity
-    local entitydoctype    = optionalspace * P("<!ENTITY") * somespace * (systementitytype + publicentitytype + normalentitytype) * optionalspace * close
-
-    local doctypeset       = beginset * optionalspace * P(elementdoctype + entitydoctype + space)^0 * optionalspace * endset
-    local definitiondoctype= doctypename * somespace * doctypeset
-    local publicdoctype    = doctypename * somespace * P("PUBLIC") * somespace * value * somespace * value * somespace * doctypeset
-    local systemdoctype    = doctypename * somespace * P("SYSTEM") * somespace * value * somespace * doctypeset
-    local simpledoctype    = (1-close)^1 -- * balanced^0
-    local somedoctype      = C((somespace * (publicdoctype + systemdoctype + definitiondoctype + simpledoctype) * optionalspace)^0)
-
-    local instruction      = (spacing * begininstruction * someinstruction * endinstruction) / function(...) add_special("@pi@",...) end
-    local comment          = (spacing * begincomment     * somecomment     * endcomment    ) / function(...) add_special("@cm@",...) end
-    local cdata            = (spacing * begincdata       * somecdata       * endcdata      ) / function(...) add_special("@cd@",...) end
-    local doctype          = (spacing * begindoctype     * somedoctype     * enddoctype    ) / function(...) add_special("@dt@",...) end
-
-    --  nicer but slower:
-    --
-    --  local instruction = (lpeg.Cc("@pi@") * spacing * begininstruction * someinstruction * endinstruction) / add_special
-    --  local comment     = (lpeg.Cc("@cm@") * spacing * begincomment     * somecomment     * endcomment    ) / add_special
-    --  local cdata       = (lpeg.Cc("@cd@") * spacing * begincdata       * somecdata       * endcdata      ) / add_special
-    --  local doctype     = (lpeg.Cc("@dt@") * spacing * begindoctype     * somedoctype     * enddoctype    ) / add_special
-
-    local trailer = space^0 * (justtext/set_message)^0
-
-    --  comment + emptyelement + text + cdata + instruction + V("parent"), -- 6.5 seconds on 40 MB database file
-    --  text + comment + emptyelement + cdata + instruction + V("parent"), -- 5.8
-    --  text + V("parent") + emptyelement + comment + cdata + instruction, -- 5.5
-
-    local grammar = P { "preamble",
-        preamble = utfbom^0 * instruction^0 * (doctype + comment + instruction)^0 * V("parent") * trailer,
-        parent   = beginelement * V("children")^0 * endelement,
-        children = text + V("parent") + emptyelement + comment + cdata + instruction,
-    }
-
-    -- todo: xml.new + properties like entities and strip and such (store in root)
-
-    function xml.convert(data, no_root, strip_cm_and_dt, given_entities) -- maybe use table met k/v (given_entities may disapear)
-        strip = strip_cm_and_dt or xml.strip_cm_and_dt
-        stack, top, at, xmlns, errorstr, result, entities = {}, {}, {}, {}, nil, nil, given_entities or {}
-        stack[#stack+1] = top
-        top.dt = { }
-        dt = top.dt
-        if not data or data == "" then
-            errorstr = "empty xml file"
-        elseif not grammar:match(data) then
-            errorstr = "invalid xml file"
-        else
-            errorstr = ""
-        end
-        if errorstr and errorstr ~= "" then
-            result = { dt = { { ns = "", tg = "error", dt = { errorstr }, at={}, er = true } }, error = true }
-            setmetatable(stack, mt)
-            if xml.error_handler then xml.error_handler("load",errorstr) end
-        else
-            result = stack[1]
-        end
-        if not no_root then
-            result = { special = true, ns = "", tg = '@rt@', dt = result.dt, at={}, entities = entities }
-            setmetatable(result, mt)
-            local rdt = result.dt
-            for k=1,#rdt do
-                local v = rdt[k]
-                if type(v) == "table" and not v.special then -- always table -)
-                    result.ri = k -- rootindex
-                    break
-                end
-            end
-        end
-        return result
-    end
-
-    --[[ldx--
-    <p>Packaging data in an xml like table is done with the following
-    function. Maybe it will go away (when not used).</p>
-    --ldx]]--
-
-    function xml.is_valid(root)
-        return root and root.dt and root.dt[1] and type(root.dt[1]) == "table" and not root.dt[1].er
-    end
-
-    function xml.package(tag,attributes,data)
-        local ns, tg = tag:match("^(.-):?([^:]+)$")
-        local t = { ns = ns, tg = tg, dt = data or "", at = attributes or {} }
-        setmetatable(t, mt)
-        return t
-    end
-
-    function xml.is_valid(root)
-        return root and not root.error
-    end
-
-    xml.error_handler = (logs and logs.report) or (input and logs.report) or print
-
-end
-
---[[ldx--
-<p>We cannot load an <l n='lpeg'/> from a filehandle so we need to load
-the whole file first. The function accepts a string representing
-a filename or a file handle.</p>
---ldx]]--
-
-function xml.load(filename)
-    if type(filename) == "string" then
-        local f = io.open(filename,'r')
-        if f then
-            local root = xml.convert(f:read("*all"))
-            f:close()
-            return root
-        else
-            return xml.convert("")
-        end
-    elseif filename then -- filehandle
-        return xml.convert(filename:read("*all"))
-    else
-        return xml.convert("")
-    end
-end
-
---[[ldx--
-<p>When we inject new elements, we need to convert strings to
-valid trees, which is what the next function does.</p>
---ldx]]--
-
-function xml.toxml(data)
-    if type(data) == "string" then
-        local root = { xml.convert(data,true) }
-        return (#root > 1 and root) or root[1]
-    else
-        return data
-    end
-end
-
---[[ldx--
-<p>For copying a tree we use a dedicated function instead of the
-generic table copier. Since we know what we're dealing with we
-can speed up things a bit. The second argument is not to be used!</p>
---ldx]]--
-
-do
-
-    local function copy(old,tables)
-        if old then
-            tables = tables or { }
-            local new = { }
-            if not tables[old] then
-                tables[old] = new
-            end
-            for k,v in pairs(old) do
-                new[k] = (type(v) == "table" and (tables[v] or copy(v, tables))) or v
-            end
-            local mt = getmetatable(old)
-            if mt then
-                setmetatable(new,mt)
-            end
-            return new
-        else
-            return { }
-        end
-    end
-
-    xml.copy = copy
-
-end
-
---[[ldx--
-<p>In <l n='context'/> serializing the tree or parts of the tree is a major
-actitivity which is why the following function is pretty optimized resulting
-in a few more lines of code than needed. The variant that uses the formatting
-function for all components is about 15% slower than the concatinating
-alternative.</p>
---ldx]]--
-
-do
-
-    -- todo: add <?xml version='1.0' standalone='yes'?> when not present
-
-    local fallbackhandle = (tex and tex.sprint) or io.write
-
-    local function serialize(e, handle, textconverter, attributeconverter, specialconverter, nocommands)
-        if not e then
-            return
-        elseif not nocommands then
-            local ec = e.command
-            if ec ~= nil then -- we can have all kind of types
-                if e.special then
-                    local etg, edt = e.tg, e.dt
-                    local spc = specialconverter and specialconverter[etg]
-                    if spc then
-                        local result = spc(edt[1])
-                        if result then
-                            handle(result)
-                            return
-                        else
-                            -- no need to handle any further
-                        end
-                    end
-                end
-                local xc = xml.command
-                if xc then
-                    xc(e,ec)
-                    return
-                end
-            end
-        end
-        handle = handle or fallbackhandle
-        local etg = e.tg
-        if etg then
-            if e.special then
-                local edt = e.dt
-                local spc = specialconverter and specialconverter[etg]
-                if spc then
-                    local result = spc(edt[1])
-                    if result then
-                        handle(result)
-                    else
-                        -- no need to handle any further
-                    end
-                elseif etg == "@pi@" then
-                --  handle(format("<?%s?>",edt[1]))
-                    handle("<?" .. edt[1] .. "?>")
-                elseif etg == "@cm@" then
-                --  handle(format("<!--%s-->",edt[1]))
-                    handle("<!--" .. edt[1] .. "-->")
-                elseif etg == "@cd@" then
-                --  handle(format("<![CDATA[%s]]>",edt[1]))
-                    handle("<![CDATA[" .. edt[1] .. "]]>")
-                elseif etg == "@dt@" then
-                --  handle(format("<!DOCTYPE %s>",edt[1]))
-                    handle("<!DOCTYPE " .. edt[1] .. ">")
-                elseif etg == "@rt@" then
-                    serialize(edt,handle,textconverter,attributeconverter,specialconverter,nocommands)
-                end
-            else
-                local ens, eat, edt, ern = e.ns, e.at, e.dt, e.rn
-                local ats = eat and next(eat) and { } -- type test maybe faster
-                if ats then
-                    if attributeconverter then
-                        for k,v in next, eat do
-                            ats[#ats+1] = format('%s=%q',k,attributeconverter(v))
-                        end
-                    else
-                        for k,v in next, eat do
-                            ats[#ats+1] = format('%s=%q',k,v)
-                        end
-                    end
-                end
-                if ern and trace_remap and ern ~= ens then
-                    ens = ern
-                end
-                if ens ~= "" then
-                    if edt and #edt > 0 then
-                        if ats then
-                        --  handle(format("<%s:%s %s>",ens,etg,concat(ats," ")))
-                            handle("<" .. ens .. ":" .. etg .. " " .. concat(ats," ") .. ">")
-                        else
-                        --  handle(format("<%s:%s>",ens,etg))
-                            handle("<" .. ens .. ":" .. etg .. ">")
-                        end
-                        for i=1,#edt do
-                            local e = edt[i]
-                            if type(e) == "string" then
-                                if textconverter then
-                                    handle(textconverter(e))
-                                else
-                                    handle(e)
-                                end
-                            else
-                                serialize(e,handle,textconverter,attributeconverter,specialconverter,nocommands)
-                            end
-                        end
-                    --  handle(format("</%s:%s>",ens,etg))
-                        handle("</" .. ens .. ":" .. etg .. ">")
-                    else
-                        if ats then
-                        --  handle(format("<%s:%s %s/>",ens,etg,concat(ats," ")))
-                            handle("<" .. ens .. ":" .. etg .. " " .. concat(ats," ") .. "/>")
-                        else
-                        --  handle(format("<%s:%s/>",ens,etg))
-                            handle("<" .. ens .. ":" .. etg .. "/>")
-                        end
-                    end
-                else
-                    if edt and #edt > 0 then
-                        if ats then
-                        --  handle(format("<%s %s>",etg,concat(ats," ")))
-                            handle("<" .. etg .. " " .. concat(ats," ") .. ">")
-                        else
-                        --  handle(format("<%s>",etg))
-                            handle("<" .. etg .. ">")
-                        end
-                        for i=1,#edt do
-                            local ei = edt[i]
-                            if type(ei) == "string" then
-                                if textconverter then
-                                    handle(textconverter(ei))
-                                else
-                                    handle(ei)
-                                end
-                            else
-                                serialize(ei,handle,textconverter,attributeconverter,specialconverter,nocommands)
-                            end
-                        end
-                    --  handle(format("</%s>",etg))
-                        handle("</" .. etg .. ">")
-                    else
-                        if ats then
-                        --  handle(format("<%s %s/>",etg,concat(ats," ")))
-                            handle("<" .. etg .. " " .. concat(ats," ") .. "/>")
-                        else
-                        --  handle(format("<%s/>",etg))
-                            handle("<" .. etg .. "/>")
-                        end
-                    end
-                end
-            end
-        elseif type(e) == "string" then
-            if textconverter then
-                handle(textconverter(e))
-            else
-                handle(e)
-            end
-        else
-            for i=1,#e do
-                local ei = e[i]
-                if type(ei) == "string" then
-                    if textconverter then
-                        handle(textconverter(ei))
-                    else
-                        handle(ei)
-                    end
-                else
-                    serialize(ei,handle,textconverter,attributeconverter,specialconverter,nocommands)
-                end
-            end
-        end
-    end
-
-    xml.serialize = serialize
-
-    function xml.checkbom(root) -- can be made faster
-        if root.ri then
-            local dt, found = root.dt, false
-            for k=1,#dt do
-                local v = dt[k]
-                if type(v) == "table" and v.special and v.tg == "@pi" and v.dt:find("xml.*version=") then
-                    found = true
-                    break
-                end
-            end
-            if not found then
-                insert(dt, 1, { special=true, ns="", tg="@pi@", dt = { "xml version='1.0' standalone='yes'"} } )
-                insert(dt, 2, "\n" )
-            end
-        end
-    end
-
-    --[[ldx--
-    <p>At the cost of some 25% runtime overhead you can first convert the tree to a string
-    and then handle the lot.</p>
-    --ldx]]--
-
-    function xml.tostring(root) -- 25% overhead due to collecting
-        if root then
-            if type(root) == 'string' then
-                return root
-            elseif next(root) then -- next is faster than type (and >0 test)
-                local result = { }
-                serialize(root,function(s) result[#result+1] = s end)
-                return concat(result,"")
-            end
-        end
-        return ""
-    end
-
-end
-
---[[ldx--
-<p>The next function operated on the content only and needs a handle function
-that accepts a string.</p>
---ldx]]--
-
-function xml.string(e,handle)
-    if not handle or (e.special and e.tg ~= "@rt@") then
-        -- nothing
-    elseif e.tg then
-        local edt = e.dt
-        if edt then
-            for i=1,#edt do
-                xml.string(edt[i],handle)
-            end
-        end
-    else
-        handle(e)
-    end
-end
-
---[[ldx--
-<p>How you deal with saving data depends on your preferences. For a 40 MB database
-file the timing on a 2.3 Core Duo are as follows (time in seconds):</p>
-
-<lines>
-1.3 : load data from file to string
-6.1 : convert string into tree
-5.3 : saving in file using xmlsave
-6.8 : converting to string using xml.tostring
-3.6 : saving converted string in file
-</lines>
-
-<p>The save function is given below.</p>
---ldx]]--
-
-function xml.save(root,name)
-    local f = io.open(name,"w")
-    if f then
-        xml.serialize(root,function(s) f:write(s) end)
-        f:close()
-    end
-end
-
---[[ldx--
-<p>A few helpers:</p>
---ldx]]--
-
-function xml.body(root)
-    return (root.ri and root.dt[root.ri]) or root
-end
-
-function xml.text(root)
-    return (root and xml.tostring(root)) or ""
-end
-
-function xml.content(root) -- bugged
-    return (root and root.dt and xml.tostring(root.dt)) or ""
-end
-
-function xml.isempty(root, pattern)
-    if pattern == "" or pattern == "*" then
-        pattern = nil
-    end
-    if pattern then
-        -- todo
-        return false
-    else
-        return not root or not root.dt or #root.dt == 0 or root.dt == ""
-    end
-end
-
---[[ldx--
-<p>The next helper erases an element but keeps the table as it is,
-and since empty strings are not serialized (effectively) it does
-not harm. Copying the table would take more time. Usage:</p>
-
-<typing>
-dt[k] = xml.empty() or xml.empty(dt,k)
-</typing>
---ldx]]--
-
-function xml.empty(dt,k)
-    if dt and k then
-        dt[k] = ""
-        return dt[k]
-    else
-        return ""
-    end
+if not trackers then
+    require('trac-tra.lua')
 end
 
---[[ldx--
-<p>The next helper assigns a tree (or string). Usage:</p>
-
-<typing>
-dt[k] = xml.assign(root) or xml.assign(dt,k,root)
-</typing>
---ldx]]--
-
-function xml.assign(dt,k,root)
-    if dt and k then
-        dt[k] = (type(root) == "table" and xml.body(root)) or root
-        return dt[k]
-    else
-        return xml.body(root)
-    end
+if not xml then
+    require('lxml-tab.lua')
+    require('lxml-lpt.lua')
+    require('lxml-mis.lua')
+    require('lxml-aux.lua')
+    require('lxml-xml.lua')
 end
-
---[[ldx--
-<p>We've now arrived at an intersting part: accessing the tree using a subset
-of <l n='xpath'/> and since we're not compatible we call it <l n='lpath'/>. We
-will explain more about its usage in other documents.</p>
---ldx]]--
-
-local lpathcalls  = 0 -- statisctics
-local lpathcached = 0 -- statisctics
-
-do
-
-    xml.functions   = xml.functions   or { }
-    xml.expressions = xml.expressions or { }
-
-    local functions   = xml.functions
-    local expressions = xml.expressions
-
-    local actions = {
-        [10] = "stay",
-        [11] = "parent",
-        [12] = "subtree root",
-        [13] = "document root",
-        [14] = "any",
-        [15] = "many",
-        [16] = "initial",
-        [20] = "match",
-        [21] = "match one of",
-        [22] = "match and attribute eq",
-        [23] = "match and attribute ne",
-        [24] = "match one of and attribute eq",
-        [25] = "match one of and attribute ne",
-        [27] = "has attribute",
-        [28] = "has value",
-        [29] = "fast match",
-        [30] = "select",
-        [31] = "expression",
-        [40] = "processing instruction",
-    }
-
-    -- a rather dumb lpeg
-
-    local P, S, R, C, V, Cc = lpeg.P, lpeg.S, lpeg.R, lpeg.C, lpeg.V, lpeg.Cc
-
-    -- instead of using functions we just parse a few names which saves a call
-    -- later on
-
-    local lp_position  = P("position()") / "ps"
-    local lp_index     = P("index()")    / "id"
-    local lp_text      = P("text()")     / "tx"
-    local lp_name      = P("name()")     / "(ns~='' and ns..':'..tg)" -- "((rt.ns~='' and rt.ns..':'..rt.tg) or '')"
-    local lp_tag       = P("tag()")      / "tg" -- (rt.tg or '')
-    local lp_ns        = P("ns()")       / "ns" -- (rt.ns or '')
-    local lp_noequal   = P("!=")         / "~=" + P("<=") + P(">=") + P("==")
-    local lp_doequal   = P("=")          / "=="
-    local lp_attribute = P("@")          / "" * Cc("(at['") * R("az","AZ","--","__")^1 * Cc("'] or '')")
-
-    local lp_lua_function  = C(R("az","AZ","--","__")^1 * (P(".") * R("az","AZ","--","__")^1)^1) * P("(") / function(t) -- todo: better . handling
-        return t .. "("
-    end
-
-    local lp_function  = C(R("az","AZ","--","__")^1) * P("(") / function(t) -- todo: better . handling
-        if expressions[t] then
-            return "expressions." .. t .. "("
-        else
-            return "expressions.error("
-        end
-    end
-
-    local lparent  = lpeg.P("(")
-    local rparent  = lpeg.P(")")
-    local noparent = 1 - (lparent+rparent)
-    local nested   = lpeg.P{lparent * (noparent + lpeg.V(1))^0 * rparent}
-    local value    = lpeg.P(lparent * lpeg.C((noparent + nested)^0) * rparent) -- lpeg.P{"("*C(((1-S("()"))+V(1))^0)*")"}
-
-    -- if we use a dedicated namespace then we don't need to pass rt and k
-
-    local lp_special = (C(P("name")+P("text")+P("tag"))) * value / function(t,s)
-        if expressions[t] then
-            if s then
-                return "expressions." .. t .. "(r,k," .. s ..")"
-            else
-                return "expressions." .. t .. "(r,k)"
-            end
-        else
-            return "expressions.error(" .. t .. ")"
-        end
-    end
-
-    local converter = lpeg.Cs ( (
-        lp_position +
-        lp_index +
-        lp_text + lp_name + -- fast one
-        lp_special +
-        lp_noequal + lp_doequal +
-        lp_attribute +
-        lp_lua_function +
-        lp_function +
-    1 )^1 )
-
-    -- expressions,root,rootdt,k,e,edt,ns,tg,idx,hsh[tg] or 1
-
-    local template = [[
-        return function(expressions,r,d,k,e,dt,ns,tg,id,ps)
-            local at, tx = e.at or { }, dt[1] or ""
-            return %s
-        end
-    ]]
-
-    local function make_expression(str)
-        str = converter:match(str)
-        return str, loadstring(format(template,str))()
-    end
-
-    local map = { }
-
-    local space             = S(' \r\n\t')
-    local squote            = S("'")
-    local dquote            = S('"')
-    local lparent           = P('(')
-    local rparent           = P(')')
-    local atsign            = P('@')
-    local lbracket          = P('[')
-    local rbracket          = P(']')
-    local exclam            = P('!')
-    local period            = P('.')
-    local eq                = P('==') + P('=')
-    local ne                = P('<>') + P('!=')
-    local star              = P('*')
-    local slash             = P('/')
-    local colon             = P(':')
-    local bar               = P('|')
-    local hat               = P('^')
-    local valid             = R('az', 'AZ', '09') + S('_-')
-    local name_yes          = C(valid^1 + star) * colon * C(valid^1 + star) -- permits ns:* *:tg *:*
-    local name_nop          = Cc("*") * C(valid^1)
-    local name              = name_yes + name_nop
-    local number            = C((S('+-')^0 * R('09')^1)) / tonumber
-    local names             = (bar^0 * name)^1
-    local morenames         = name * (bar^0 * name)^1
-    local instructiontag    = P('pi::')
-    local spacing           = C(space^0)
-    local somespace         = space^1
-    local optionalspace     = space^0
-    local text              = C(valid^0)
-    local value             = (squote * C((1 - squote)^0) * squote) + (dquote * C((1 - dquote)^0) * dquote)
-    local empty             = 1-slash
-
-    local is_eq             = lbracket * atsign * name * eq * value * rbracket
-    local is_ne             = lbracket * atsign * name * ne * value * rbracket
-    local is_attribute      = lbracket * atsign * name              * rbracket
-    local is_value          = lbracket *          value             * rbracket
-    local is_number         = lbracket *          number            * rbracket
-
-    local nobracket         = 1-(lbracket+rbracket)  -- must be improved
-    local is_expression     = lbracket * C(((C(nobracket^1))/make_expression)) * rbracket
-
-    local is_expression     = lbracket * (C(nobracket^1))/make_expression * rbracket
-
-    local is_one            =          name
-    local is_none           = exclam * name
-    local is_one_of         =          ((lparent * names * rparent) + morenames)
-    local is_none_of        = exclam * ((lparent * names * rparent) + morenames)
-
-    local stay                     = (period                )
-    local parent                   = (period * period       ) / function(   ) map[#map+1] = { 11             } end
-    local subtreeroot              = (slash + hat           ) / function(   ) map[#map+1] = { 12             } end
-    local documentroot             = (hat * hat             ) / function(   ) map[#map+1] = { 13             } end
-    local any                      = (star                  ) / function(   ) map[#map+1] = { 14             } end
-    local many                     = (star * star           ) / function(   ) map[#map+1] = { 15             } end
-    local initial                  = (hat * hat * hat       ) / function(   ) map[#map+1] = { 16             } end
-
-    local match                    = (is_one                ) / function(...) map[#map+1] = { 20, true , ... } end
-    local match_one_of             = (is_one_of             ) / function(...) map[#map+1] = { 21, true , ... } end
-    local dont_match               = (is_none               ) / function(...) map[#map+1] = { 20, false, ... } end
-    local dont_match_one_of        = (is_none_of            ) / function(...) map[#map+1] = { 21, false, ... } end
-
-    local match_and_eq             = (is_one     * is_eq    ) / function(...) map[#map+1] = { 22, true , ... } end
-    local match_and_ne             = (is_one     * is_ne    ) / function(...) map[#map+1] = { 23, true , ... } end
-    local dont_match_and_eq        = (is_none    * is_eq    ) / function(...) map[#map+1] = { 22, false, ... } end
-    local dont_match_and_ne        = (is_none    * is_ne    ) / function(...) map[#map+1] = { 23, false, ... } end
-
-    local match_one_of_and_eq      = (is_one_of  * is_eq    ) / function(...) map[#map+1] = { 24, true , ... } end
-    local match_one_of_and_ne      = (is_one_of  * is_ne    ) / function(...) map[#map+1] = { 25, true , ... } end
-    local dont_match_one_of_and_eq = (is_none_of * is_eq    ) / function(...) map[#map+1] = { 24, false, ... } end
-    local dont_match_one_of_and_ne = (is_none_of * is_ne    ) / function(...) map[#map+1] = { 25, false, ... } end
-
-    local has_attribute            = (is_one  * is_attribute) / function(...) map[#map+1] = { 27, true , ... } end
-    local has_value                = (is_one  * is_value    ) / function(...) map[#map+1] = { 28, true , ... } end
-    local dont_has_attribute       = (is_none * is_attribute) / function(...) map[#map+1] = { 27, false, ... } end
-    local dont_has_value           = (is_none * is_value    ) / function(...) map[#map+1] = { 28, false, ... } end
-    local position                 = (is_one  * is_number   ) / function(...) map[#map+1] = { 30, true,  ... } end
-    local dont_position            = (is_none * is_number   ) / function(...) map[#map+1] = { 30, false, ... } end
-
-    local expression               = (is_one  * is_expression)/ function(...) map[#map+1] = { 31, true,  ... } end
-    local dont_expression          = (is_none * is_expression)/ function(...) map[#map+1] = { 31, false, ... } end
-
-    local self_expression          = (         is_expression) / function(...) if #map == 0 then map[#map+1] = { 11 } end
-                                                                              map[#map+1] = { 31, true,  "*", "*", ... } end
-    local dont_self_expression     = (exclam * is_expression) / function(...) if #map == 0 then map[#map+1] = { 11 } end
-                                                                              map[#map+1] = { 31, false, "*", "*", ... } end
-
-    local instruction              = (instructiontag * text ) / function(...) map[#map+1] = { 40,        ... } end
-    local nothing                  = (empty                 ) / function(   ) map[#map+1] = { 15             } end -- 15 ?
-    local crap                     = (1-slash)^1
-
-    -- a few ugly goodies:
-
-    local docroottag               = P('^^')             / function(   ) map[#map+1] = { 12             } end
-    local subroottag               = P('^')              / function(   ) map[#map+1] = { 13             } end
-    local roottag                  = P('root::')         / function(   ) map[#map+1] = { 12             } end
-    local parenttag                = P('parent::')       / function(   ) map[#map+1] = { 11             } end
-    local childtag                 = P('child::')
-    local selftag                  = P('self::')
-
-    -- there will be more and order will be optimized
-
-    local selector = (
-        instruction +
---~         many + any + -- brrr, not here !
-        parent + stay +
-        dont_position + position +
-        dont_match_one_of_and_eq + dont_match_one_of_and_ne +
-        match_one_of_and_eq + match_one_of_and_ne +
-        dont_match_and_eq + dont_match_and_ne +
-        match_and_eq + match_and_ne +
-        dont_expression + expression +
-        dont_self_expression + self_expression +
-        has_attribute + has_value +
-        dont_match_one_of + match_one_of +
-        dont_match + match +
-        many + any +
-        crap + empty
-    )
-
-    local grammar = P { "startup",
-        startup  = (initial + documentroot + subtreeroot + roottag + docroottag + subroottag)^0 * V("followup"),
-        followup = ((slash + parenttag + childtag + selftag)^0 * selector)^1,
-    }
-
-    local function compose(str)
-        if not str or str == "" then
-            -- wildcard
-            return true
-        elseif str == '/' then
-            -- root
-            return false
-        else
-            map = { }
-            grammar:match(str)
-            if #map == 0 then
-                return true
-            else
-                local m = map[1][1]
-                if #map == 1 then
-                    if m == 14 or m == 15 then
-                        -- wildcard
-                        return true
-                    elseif m == 12 then
-                        -- root
-                        return false
-                    end
-                elseif #map == 2 and m == 12 and map[2][1] == 20 then
-                --  return { { 29, map[2][2], map[2][3], map[2][4], map[2][5] } }
-                    map[2][1] = 29
-                    return { map[2] }
-                end
-                if m ~= 11 and m ~= 12 and m ~= 13 and m ~= 14 and m ~= 15 and m ~= 16 then
-                    insert(map, 1, { 16 })
-                end
-            --  print(gsub(table.serialize(map),"[ \n]+"," "))
-                return map
-            end
-        end
-    end
-
-    local cache = { }
-
-    function xml.lpath(pattern,trace)
-        lpathcalls = lpathcalls + 1
-        if type(pattern) == "string" then
-            local result = cache[pattern]
-            if result == nil then -- can be false which is valid -)
-                result = compose(pattern)
-                cache[pattern] = result
-                lpathcached = lpathcached + 1
-            end
-            if trace or trace_lpath then
-                xml.lshow(result)
-            end
-            return result
-        else
-            return pattern
-        end
-    end
-
-    function xml.cached_patterns()
-        return cache
-    end
-
---  we run out of locals (limited to 200)
---
---  local fallbackreport = (texio and texio.write) or io.write
-
-    function xml.lshow(pattern,report)
---      report = report or fallbackreport
-        report = report or (texio and texio.write) or io.write
-        local lp = xml.lpath(pattern)
-        if lp == false then
-            report(" -: root\n")
-        elseif lp == true then
-            report(" -: wildcard\n")
-        else
-            if type(pattern) == "string" then
-                report(format("pattern: %s\n",pattern))
-            end
-            for k=1,#lp do
-                local v = lp[k]
-                if #v > 1 then
-                    local t = { }
-                    for i=2,#v do
-                        local vv = v[i]
-                        if type(vv) == "string" then
-                            t[#t+1] = (vv ~= "" and vv) or "#"
-                        elseif type(vv) == "boolean" then
-                            t[#t+1] = (vv and "==") or "<>"
-                        end
-                    end
-                    report(format("%2i: %s %s -> %s\n", k,v[1],actions[v[1]],concat(t," ")))
-                else
-                    report(format("%2i: %s %s\n", k,v[1],actions[v[1]]))
-                end
-            end
-        end
-    end
-
-    function xml.xshow(e,...) -- also handy when report is given, use () to isolate first e
-        local t = { ... }
---      local report = (type(t[#t]) == "function" and t[#t]) or fallbackreport
-        local report = (type(t[#t]) == "function" and t[#t]) or (texio and texio.write) or io.write
-        if e == nil then
-            report("<!-- no element -->\n")
-        elseif type(e) ~= "table" then
-            report(tostring(e))
-        elseif e.tg then
-            report(tostring(e) .. "\n")
-        else
-            for i=1,#e do
-                report(tostring(e[i]) .. "\n")
-            end
-        end
-    end
-
-end
-
---[[ldx--
-<p>An <l n='lpath'/> is converted to a table with instructions for traversing the
-tree. Hoever, simple cases are signaled by booleans. Because we don't know in
-advance what we want to do with the found element the handle gets three arguments:</p>
-
-<lines>
-<t>r</t> : the root element of the data table
-<t>d</t> : the data table of the result
-<t>t</t> : the index in the data table of the result
-</lines>
-
-<p> Access to the root and data table makes it possible to construct insert and delete
-functions.</p>
---ldx]]--
-
-do
-
-    local functions   = xml.functions
-    local expressions = xml.expressions
-
-    expressions.contains = string.find
-    expressions.find     = string.find
-    expressions.upper    = string.upper
-    expressions.lower    = string.lower
-    expressions.number   = tonumber
-    expressions.boolean  = toboolean
-
-    expressions.oneof = function(s,...) -- slow
-        local t = {...} for i=1,#t do if s == t[i] then return true end end return false
-    end
-
-    expressions.error = function(str)
-        xml.error_handler("unknown function in lpath expression",str or "?")
-        return false
-    end
-
-    functions.text = function(root,k,n) -- unchecked, maybe one deeper
-        local t = type(t)
-        if t == "string" then
-            return t
-        else -- todo n
-            local rdt = root.dt
-            return (rdt and rdt[k]) or root[k] or ""
-        end
-    end
-
-    functions.name = function(d,k,n) -- ns + tg
-        local found = false
-        n = n or 0
-        if not k then
-            -- not found
-        elseif n == 0 then
-            local dk = d[k]
-            found = dk and (type(dk) == "table") and dk
-        elseif n < 0 then
-            for i=k-1,1,-1 do
-                local di = d[i]
-                if type(di) == "table" then
-                    if n == -1 then
-                        found = di
-                        break
-                    else
-                        n = n + 1
-                    end
-                end
-            end
-        else
-            for i=k+1,#d,1 do
-                local di = d[i]
-                if type(di) == "table" then
-                    if n == 1 then
-                        found = di
-                        break
-                    else
-                        n = n - 1
-                    end
-                end
-            end
-        end
-        if found then
-            local ns, tg = found.rn or found.ns or "", found.tg
-            if ns ~= "" then
-                return ns .. ":" .. tg
-            else
-                return tg
-            end
-        else
-            return ""
-        end
-    end
-
-    functions.tag = function(d,k,n) -- only tg
-        local found = false
-        n = n or 0
-        if not k then
-            -- not found
-        elseif n == 0 then
-            local dk = d[k]
-            found = dk and (type(dk) == "table") and dk
-        elseif n < 0 then
-            for i=k-1,1,-1 do
-                local di = d[i]
-                if type(di) == "table" then
-                    if n == -1 then
-                        found = di
-                        break
-                    else
-                        n = n + 1
-                    end
-                end
-            end
-        else
-            for i=k+1,#d,1 do
-                local di = d[i]
-                if type(di) == "table" then
-                    if n == 1 then
-                        found = di
-                        break
-                    else
-                        n = n - 1
-                    end
-                end
-            end
-        end
-        return (found and found.tg) or ""
-    end
-
-    expressions.text = functions.text
-    expressions.name = functions.name
-    expressions.tag  = functions.tag
-
-    local function traverse(root,pattern,handle,reverse,index,parent,wildcard) -- multiple only for tags, not for namespaces
-        if not root then -- error
-            return false
-        elseif pattern == false then -- root
-            handle(root,root.dt,root.ri)
-            return false
-        elseif pattern == true then -- wildcard
-            local rootdt = root.dt
-            if rootdt then
-                local start, stop, step = 1, #rootdt, 1
-                if reverse then
-                    start, stop, step = stop, start, -1
-                end
-                for k=start,stop,step do
-                    if handle(root,rootdt,root.ri or k)            then return false end
-                    if not traverse(rootdt[k],true,handle,reverse) then return false end
-                end
-            end
-            return false
-        elseif root.dt then
-            index = index or 1
-            local action = pattern[index]
-            local command = action[1]
-            if command == 29 then -- fast case /oeps
-                local rootdt = root.dt
-                for k=1,#rootdt do
-                    local e = rootdt[k]
-                    local tg = e.tg
-                    if e.tg then
-                        local ns = e.rn or e.ns
-                        local ns_a, tg_a = action[3], action[4]
-                        local matched = (ns_a == "*" or ns == ns_a) and (tg_a == "*" or tg == tg_a)
-                        if not action[2] then matched = not matched end
-                        if matched then
-                            if handle(root,rootdt,k) then return false end
-                        end
-                    end
-                end
-            elseif command == 11 then -- parent
-                local ep = root.__p__ or parent
-                if index < #pattern then
-                    if not traverse(ep,pattern,handle,reverse,index+1,root) then return false end
-                elseif handle(root,rootdt,k) then
-                    return false
-                end
-            else
-                if (command == 16 or command == 12) and index == 1 then -- initial
-                --  wildcard = true
-                    wildcard = command == 16 -- ok?
-                    index = index + 1
-                    action = pattern[index]
-                    command = action and action[1] or 0 -- something is wrong
-                end
-                if command == 11 then -- parent
-                    local ep = root.__p__ or parent
-                    if index < #pattern then
-                        if not traverse(ep,pattern,handle,reverse,index+1,root) then return false end
-                    elseif handle(root,rootdt,k) then
-                        return false
-                    end
-                else
-                    local rootdt = root.dt
-                    local start, stop, step, n, dn = 1, #rootdt, 1, 0, 1
-                    if command == 30 then
-                        if action[5] < 0 then
-                            start, stop, step = stop, start, -1
-                            dn = -1
-                        end
-                    elseif reverse and index == #pattern then
-                        start, stop, step = stop, start, -1
-                    end
-                    local idx = 0
-                    local hsh = { } -- this will slooow down the lot
-                    for k=start,stop,step do -- we used to have functions for all but a case is faster
-                        local e = rootdt[k]
-                        local ns, tg = e.rn or e.ns, e.tg
-                        if tg then
-                         -- we can optimize this for simple searches, but it probably does not pay off
-                            hsh[tg] = (hsh[tg] or 0) + 1
-                            idx = idx + 1
-                            if command == 30 then
-                                local ns_a, tg_a = action[3], action[4]
-                                if tg == tg_a then
-                                    matched = ns_a == "*" or ns == ns_a
-                                elseif tg_a == '*' then
-                                    matched, multiple = ns_a == "*" or ns == ns_a, true
-                                else
-                                    matched = false
-                                end
-                                if not action[2] then matched = not matched end
-                                if matched then
-                                    n = n + dn
-                                    if n == action[5] then
-                                        if index == #pattern then
-                                            if handle(root,rootdt,root.ri or k) then return false end
-                                        else
-                                            if not traverse(e,pattern,handle,reverse,index+1,root) then return false end
-                                        end
-                                        break
-                                    end
-                                elseif wildcard then
-                                    if not traverse(e,pattern,handle,reverse,index,root,true) then return false end
-                                end
-                            else
-                                local matched, multiple = false, false
-                                if command == 20 then -- match
-                                    local ns_a, tg_a = action[3], action[4]
-                                    if tg == tg_a then
-                                        matched = ns_a == "*" or ns == ns_a
-                                    elseif tg_a == '*' then
-                                        matched, multiple = ns_a == "*" or ns == ns_a, true
-                                    else
-                                        matched = false
-                                    end
-                                    if not action[2] then matched = not matched end
-                                elseif command == 21 then -- match one of
-                                    multiple = true
-                                    for i=3,#action,2 do
-                                        local ns_a, tg_a = action[i], action[i+1]
-                                        if (ns_a == "*" or ns == ns_a) and (tg == "*" or tg == tg_a) then
-                                            matched = true
-                                            break
-                                        end
-                                    end
-                                    if not action[2] then matched = not matched end
-                                elseif command == 22 then -- eq
-                                    local ns_a, tg_a = action[3], action[4]
-                                    if tg == tg_a then
-                                        matched = ns_a == "*" or ns == ns_a
-                                    elseif tg_a == '*' then
-                                        matched, multiple = ns_a == "*" or ns == ns_a, true
-                                    else
-                                        matched = false
-                                    end
-                                    matched = matched and e.at[action[6]] == action[7]
-                                elseif command == 23 then -- ne
-                                    local ns_a, tg_a = action[3], action[4]
-                                    if tg == tg_a then
-                                        matched = ns_a == "*" or ns == ns_a
-                                    elseif tg_a == '*' then
-                                        matched, multiple = ns_a == "*" or ns == ns_a, true
-                                    else
-                                        matched = false
-                                    end
-                                    if not action[2] then matched = not matched end
-                                    matched = mached and e.at[action[6]] ~= action[7]
-                                elseif command == 24 then -- one of eq
-                                    multiple = true
-                                    for i=3,#action-2,2 do
-                                        local ns_a, tg_a = action[i], action[i+1]
-                                        if (ns_a == "*" or ns == ns_a) and (tg == "*" or tg == tg_a) then
-                                            matched = true
-                                            break
-                                        end
-                                    end
-                                    if not action[2] then matched = not matched end
-                                    matched = matched and e.at[action[#action-1]] == action[#action]
-                                elseif command == 25 then -- one of ne
-                                    multiple = true
-                                    for i=3,#action-2,2 do
-                                        local ns_a, tg_a = action[i], action[i+1]
-                                        if (ns_a == "*" or ns == ns_a) and (tg == "*" or tg == tg_a) then
-                                            matched = true
-                                            break
-                                        end
-                                    end
-                                    if not action[2] then matched = not matched end
-                                    matched = matched and e.at[action[#action-1]] ~= action[#action]
-                                elseif command == 27 then -- has attribute
-                                    local ns_a, tg_a = action[3], action[4]
-                                    if tg == tg_a then
-                                        matched = ns_a == "*" or ns == ns_a
-                                    elseif tg_a == '*' then
-                                        matched, multiple = ns_a == "*" or ns == ns_a, true
-                                    else
-                                        matched = false
-                                    end
-                                    if not action[2] then matched = not matched end
-                                    matched = matched and e.at[action[5]]
-                                elseif command == 28 then -- has value
-                                    local edt, ns_a, tg_a = e.dt, action[3], action[4]
-                                    if tg == tg_a then
-                                        matched = ns_a == "*" or ns == ns_a
-                                    elseif tg_a == '*' then
-                                        matched, multiple = ns_a == "*" or ns == ns_a, true
-                                    else
-                                        matched = false
-                                    end
-                                    if not action[2] then matched = not matched end
-                                    matched = matched and edt and edt[1] == action[5]
-                                elseif command == 31 then
-                                    local edt, ns_a, tg_a = e.dt, action[3], action[4]
-                                    if tg == tg_a then
-                                        matched = ns_a == "*" or ns == ns_a
-                                    elseif tg_a == '*' then
-                                        matched, multiple = ns_a == "*" or ns == ns_a, true
-                                    else
-                                        matched = false
-                                    end
-                                    if not action[2] then matched = not matched end
-                                    if matched then
-                                        matched = action[6](expressions,root,rootdt,k,e,edt,ns,tg,idx,hsh[tg] or 1)
-                                    end
-                                end
-                                if matched then -- combine tg test and at test
-                                    if index == #pattern then
-                                        if handle(root,rootdt,root.ri or k) then return false end
-                                        if wildcard then
-                                            if multiple then
-                                                if not traverse(e,pattern,handle,reverse,index,root,true) then return false end
-                                            else
-                                             -- maybe or multiple; anyhow, check on (section|title) vs just section and title in example in lxml
-                                                if not traverse(e,pattern,handle,reverse,index,root) then return false end
-                                            end
-                                        end
-                                    else
-                                        if not traverse(e,pattern,handle,reverse,index+1,root) then return false end
-                                    end
-                                elseif command == 14 then -- any
-                                    if index == #pattern then
-                                        if handle(root,rootdt,root.ri or k) then return false end
-                                    else
-                                        if not traverse(e,pattern,handle,reverse,index+1,root) then return false end
-                                    end
-                                elseif command == 15 then -- many
-                                    if index == #pattern then
-                                        if handle(root,rootdt,root.ri or k) then return false end
-                                    else
-                                        if not traverse(e,pattern,handle,reverse,index+1,root,true) then return false end
-                                    end
-                                -- not here : 11
-                                elseif command == 11 then -- parent
-                                    local ep = e.__p__ or parent
-                                    if index < #pattern then
-                                        if not traverse(ep,pattern,handle,reverse,root,index+1) then return false end
-                                    elseif handle(root,rootdt,k) then
-                                        return false
-                                    end
-                                elseif command == 40 and e.special and tg == "@pi@" then -- pi
-                                    local pi = action[2]
-                                    if pi ~= "" then
-                                        local pt = e.dt[1]
-                                        if pt and pt:find(pi) then
-                                            if handle(root,rootdt,k) then
-                                                return false
-                                            end
-                                        end
-                                    elseif handle(root,rootdt,k) then
-                                        return false
-                                    end
-                                elseif wildcard then
-                                    if not traverse(e,pattern,handle,reverse,index,root,true) then return false end
-                                end
-                            end
-                        else
-                            -- not here : 11
-                            if command == 11 then -- parent
-                                local ep = e.__p__ or parent
-                                if index < #pattern then
-                                    if not traverse(ep,pattern,handle,reverse,index+1,root) then return false end
-                                elseif handle(root,rootdt,k) then
-                                    return false
-                                end
-                                break -- else loop
-                            end
-                        end
-                    end
-                end
-            end
-        end
-        return true
-    end
-
-    xml.traverse = traverse
-
-end
-
---[[ldx--
-<p>Next come all kind of locators and manipulators. The most generic function here
-is <t>xml.filter(root,pattern)</t>. All registers functions in the filters namespace
-can be path of a search path, as in:</p>
-
-<typing>
-local r, d, k = xml.filter(root,"/a/b/c/position(4)"
-</typing>
---ldx]]--
-
-do
-
-    local traverse, lpath, convert = xml.traverse, xml.lpath, xml.convert
-
-    xml.filters = { }
-
-    function xml.filters.default(root,pattern)
-        local rt, dt, dk
-        traverse(root, lpath(pattern), function(r,d,k) rt,dt,dk = r,d,k return true end)
-        return dt and dt[dk], rt, dt, dk
-    end
-    function xml.filters.attributes(root,pattern,arguments)
-        local rt, dt, dk
-        traverse(root, lpath(pattern), function(r,d,k) rt, dt, dk = r, d, k return true end)
-        local ekat = (dt and dt[dk] and dt[dk].at) or (rt and rt.at)
-        if ekat then
-            if arguments then
-                return ekat[arguments] or "", rt, dt, dk
-            else
-                return ekat, rt, dt, dk
-            end
-        else
-            return { }, rt, dt, dk
-        end
-    end
-    function xml.filters.reverse(root,pattern)
-        local rt, dt, dk
-        traverse(root, lpath(pattern), function(r,d,k) rt,dt,dk = r,d,k return true end, 'reverse')
-        return dt and dt[dk], rt, dt, dk
-    end
-    function xml.filters.count(root,pattern,everything)
-        local n = 0
-        traverse(root, lpath(pattern), function(r,d,t)
-            if everything or type(d[t]) == "table" then
-                n = n + 1
-            end
-        end)
-        return n
-    end
-    function xml.filters.elements(root, pattern) -- == all
-        local t = { }
-        traverse(root, lpath(pattern), function(r,d,k)
-            local e = d[k]
-            if e then
-                t[#t+1] = e
-            end
-        end)
-        return t
-    end
-    function xml.filters.texts(root, pattern)
-        local t = { }
-        traverse(root, lpath(pattern), function(r,d,k)
-            local e = d[k]
-            if e and e.dt then
-                t[#t+1] = e.dt
-            end
-        end)
-        return t
-    end
-    function xml.filters.first(root,pattern)
-        local rt, dt, dk
-        traverse(root, lpath(pattern), function(r,d,k) rt,dt,dk = r,d,k return true end)
-        return dt and dt[dk], rt, dt, dk
-    end
-    function xml.filters.last(root,pattern)
-        local rt, dt, dk
-        traverse(root, lpath(pattern), function(r,d,k) rt,dt,dk = r,d,k return true end, 'reverse')
-        return dt and dt[dk], rt, dt, dk
-    end
-    function xml.filters.index(root,pattern,arguments)
-        local rt, dt, dk, reverse, i = nil, nil, nil, false, tonumber(arguments or '1') or 1
-        if i and i ~= 0 then
-            if i < 0 then
-                reverse, i = true, -i
-            end
-            traverse(root, lpath(pattern), function(r,d,k) rt, dt, dk, i = r, d, k, i-1 return i == 0 end, reverse)
-            if i == 0 then
-                return dt and dt[dk], rt, dt, dk
-            end
-        end
-        return nil, nil, nil, nil
-    end
-    function xml.filters.attribute(root,pattern,arguments)
-        local rt, dt, dk
-        traverse(root, lpath(pattern), function(r,d,k) rt, dt, dk = r, d, k return true end)
-        local ekat = (dt and dt[dk] and dt[dk].at) or (rt and rt.at)
-        return (ekat and (ekat[arguments] or ekat[gsub(arguments,"^([\"\'])(.*)%1$","%2")])) or ""
-    end
-    function xml.filters.text(root,pattern,arguments) -- ?? why index, tostring slow
-        local dtk, rt, dt, dk = xml.filters.index(root,pattern,arguments)
-        if dtk then -- n
-            local dtkdt = dtk.dt
-            if not dtkdt then
-                return "", rt, dt, dk
-            elseif #dtkdt == 1 and type(dtkdt[1]) == "string" then
-                return dtkdt[1], rt, dt, dk
-            else
-                return xml.tostring(dtkdt), rt, dt, dk
-            end
-        else
-            return "", rt, dt, dk
-        end
-    end
-    function xml.filters.tag(root,pattern,n)
-        local tag = ""
-        traverse(root, lpath(pattern), function(r,d,k)
-            tag = xml.functions.tag(d,k,n and tonumber(n))
-            return true
-        end)
-        return tag
-    end
-    function xml.filters.name(root,pattern,n)
-        local tag = ""
-        traverse(root, lpath(pattern), function(r,d,k)
-            tag = xml.functions.name(d,k,n and tonumber(n))
-            return true
-        end)
-        return tag
-    end
-
-    --[[ldx--
-    <p>For splitting the filter function from the path specification, we can
-    use string matching or lpeg matching. Here the difference in speed is
-    neglectable but the lpeg variant is more robust.</p>
-    --ldx]]--
-
-    --  not faster but hipper ... although ... i can't get rid of the trailing / in the path
-
-    local P, S, R, C, V, Cc = lpeg.P, lpeg.S, lpeg.R, lpeg.C, lpeg.V, lpeg.Cc
-
-    local slash     = P('/')
-    local name      = (R("az","AZ","--","__"))^1
-    local path      = C(((1-slash)^0 * slash)^1)
-    local argument  = P { "(" * C(((1 - S("()")) + V(1))^0) * ")" }
-    local action    = Cc(1) * path * C(name) * argument
-    local attribute = Cc(2) * path * P('@') * C(name)
-    local direct    = Cc(3) * Cc("../*") * slash^0 * C(name) * argument
-
-    local parser    = direct + action + attribute
-
-    local filters          = xml.filters
-    local attribute_filter = xml.filters.attributes
-    local default_filter   = xml.filters.default
-
-    -- todo: also hash, could be gc'd
-
-    function xml.filter(root,pattern)
-        local kind, a, b, c = parser:match(pattern)
-        if kind == 1 or kind == 3 then
-            return (filters[b] or default_filter)(root,a,c)
-        elseif kind == 2 then
-            return attribute_filter(root,a,b)
-        else
-            return default_filter(root,pattern)
-        end
-    end
-
-    --~     slightly faster, but first we need a proper test file
-    --~
-    --~     local hash = { }
-    --~
-    --~     function xml.filter(root,pattern)
-    --~         local h = hash[pattern]
-    --~         if not h then
-    --~             local kind, a, b, c = parser:match(pattern)
-    --~             if kind == 1 then
-    --~                 h = { kind, filters[b] or default_filter, a, b, c }
-    --~             elseif kind == 2 then
-    --~                 h = { kind, attribute_filter, a, b, c }
-    --~             else
-    --~                 h = { kind, default_filter, a, b, c }
-    --~             end
-    --~             hash[pattern] = h
-    --~         end
-    --~         local kind = h[1]
-    --~         if kind == 1 then
-    --~             return h[2](root,h[2],h[4])
-    --~         elseif kind == 2 then
-    --~             return h[2](root,h[2],h[3])
-    --~         else
-    --~             return h[2](root,pattern)
-    --~         end
-    --~     end
-
-    --[[ldx--
-    <p>The following functions collect elements and texts.</p>
-    --ldx]]--
-
-    -- still somewhat bugged
-
-    function xml.collect_elements(root, pattern, ignorespaces)
-        local rr, dd = { }, { }
-        traverse(root, lpath(pattern), function(r,d,k)
-            local dk = d and d[k]
-            if dk then
-                if ignorespaces and type(dk) == "string" and dk:find("[^%S]") then
-                    -- ignore
-                else
-                    local n = #rr+1
-                    rr[n], dd[n] = r, dk
-                end
-            end
-        end)
-        return dd, rr
-    end
-
-    function xml.collect_texts(root, pattern, flatten)
-        local t = { } -- no r collector
-        traverse(root, lpath(pattern), function(r,d,k)
-            if d then
-                local ek = d[k]
-                local tx = ek and ek.dt
-                if flatten then
-                    if tx then
-                        t[#t+1] = xml.tostring(tx) or ""
-                    else
-                        t[#t+1] = ""
-                    end
-                else
-                    t[#t+1] = tx or ""
-                end
-            else
-                t[#t+1] = ""
-            end
-        end)
-        return t
-    end
-
-    function xml.collect_tags(root, pattern, nonamespace)
-        local t = { }
-        xml.traverse(root, xml.lpath(pattern), function(r,d,k)
-            local dk = d and d[k]
-            if dk and type(dk) == "table" then
-                local ns, tg = e.ns, e.tg
-                if nonamespace then
-                    t[#t+1] = tg -- if needed we can return an extra table
-                elseif ns == "" then
-                    t[#t+1] = tg
-                else
-                    t[#t+1] = ns .. ":" .. tg
-                end
-            end
-        end)
-        return #t > 0 and {}
-    end
-
-    --[[ldx--
-    <p>Often using an iterators looks nicer in the code than passing handler
-    functions. The <l n='lua'/> book describes how to use coroutines for that
-    purpose (<url href='http://www.lua.org/pil/9.3.html'/>). This permits
-    code like:</p>
-
-    <typing>
-    for r, d, k in xml.elements(xml.load('text.xml'),"title") do
-        print(d[k])
-    end
-    </typing>
-
-    <p>Which will print all the titles in the document. The iterator variant takes
-    1.5 times the runtime of the function variant which is due to the overhead in
-    creating the wrapper. So, instead of:</p>
-
-    <typing>
-    function xml.filters.first(root,pattern)
-        for rt,dt,dk in xml.elements(root,pattern)
-            return dt and dt[dk], rt, dt, dk
-        end
-        return nil, nil, nil, nil
-    end
-    </typing>
-
-    <p>We use the function variants in the filters.</p>
-    --ldx]]--
-
-    local wrap, yield = coroutine.wrap, coroutine.yield
-
-    function xml.elements(root,pattern,reverse)
-        return wrap(function() traverse(root, lpath(pattern), yield, reverse) end)
-    end
-
-    function xml.elements_only(root,pattern,reverse)
-        return wrap(function() traverse(root, lpath(pattern), function(r,d,k) yield(d[k]) end, reverse) end)
-    end
-
-    function xml.each_element(root, pattern, handle, reverse)
-        local ok
-        traverse(root, lpath(pattern), function(r,d,k) ok = true handle(r,d,k) end, reverse)
-        return ok
-    end
-
-    function xml.process_elements(root, pattern, handle)
-        traverse(root, lpath(pattern), function(r,d,k)
-            local dkdt = d[k].dt
-            if dkdt then
-                for i=1,#dkdt do
-                    local v = dkdt[i]
-                    if v.tg then handle(v) end
-                end
-            end
-        end)
-    end
-
-    function xml.process_attributes(root, pattern, handle)
-        traverse(root, lpath(pattern), function(r,d,k)
-            local ek = d[k]
-            local a = ek.at or { }
-            handle(a)
-            if next(a) then -- next is faster than type (and >0 test)
-                ek.at = a
-            else
-                ek.at = nil
-            end
-        end)
-    end
-
-    --[[ldx--
-    <p>We've now arrives at the functions that manipulate the tree.</p>
-    --ldx]]--
-
-    function xml.inject_element(root, pattern, element, prepend)
-        if root and element then
-            local matches, collect = { }, nil
-            if type(element) == "string" then
-                element = convert(element,true)
-            end
-            if element then
-                collect = function(r,d,k) matches[#matches+1] = { r, d, k, element } end
-                traverse(root, lpath(pattern), collect)
-                for i=1,#matches do
-                    local m = matches[i]
-                    local r, d, k, element, edt = m[1], m[2], m[3], m[4], nil
-                    if element.ri then
-                        element = element.dt[element.ri].dt
-                    else
-                        element = element.dt
-                    end
-                    if r.ri then
-                        edt = r.dt[r.ri].dt
-                    else
-                        edt = d and d[k] and d[k].dt
-                    end
-                    if edt then
-                        local be, af
-                        if prepend then
-                            be, af = xml.copy(element), edt
-                        else
-                            be, af = edt, xml.copy(element)
-                        end
-                        for i=1,#af do
-                            be[#be+1] = af[i]
-                        end
-                        if r.ri then
-                            r.dt[r.ri].dt = be
-                        else
-                            d[k].dt = be
-                        end
-                    else
-                     -- r.dt = element.dt -- todo
-                    end
-                end
-            end
-        end
-    end
-
-    -- todo: copy !
-
-    function xml.insert_element(root, pattern, element, before) -- todo: element als functie
-        if root and element then
-            if pattern == "/" then
-                xml.inject_element(root, pattern, element, before)
-            else
-                local matches, collect = { }, nil
-                if type(element) == "string" then
-                    element = convert(element,true)
-                end
-                if element and element.ri then
-                    element = element.dt[element.ri]
-                end
-                if element then
-                    collect = function(r,d,k) matches[#matches+1] = { r, d, k, element } end
-                    traverse(root, lpath(pattern), collect)
-                    for i=#matches,1,-1 do
-                        local m = matches[i]
-                        local r, d, k, element = m[1], m[2], m[3], m[4]
-                        if not before then k = k + 1 end
-                        if element.tg then
-                            insert(d,k,element) -- untested
---~                         elseif element.dt then
---~                             for _,v in ipairs(element.dt) do -- i added
---~                                 insert(d,k,v)
---~                                 k = k + 1
---~                             end
---~                         end
-                        else
-                            local edt = element.dt
-                            if edt then
-                                for i=1,#edt do
-                                    insert(d,k,edt[i])
-                                    k = k + 1
-                                end
-                            end
-                        end
-                    end
-                end
-            end
-        end
-    end
-
-    xml.insert_element_after  =                 xml.insert_element
-    xml.insert_element_before = function(r,p,e) xml.insert_element(r,p,e,true) end
-    xml.inject_element_after  =                 xml.inject_element
-    xml.inject_element_before = function(r,p,e) xml.inject_element(r,p,e,true) end
-
-    function xml.delete_element(root, pattern)
-        local matches, deleted = { }, { }
-        local collect = function(r,d,k) matches[#matches+1] = { r, d, k } end
-        traverse(root, lpath(pattern), collect)
-        for i=#matches,1,-1 do
-            local m = matches[i]
-            deleted[#deleted+1] = table.remove(m[2],m[3])
-        end
-        return deleted
-    end
-
-    function xml.replace_element(root, pattern, element)
-        if type(element) == "string" then
-            element = convert(element,true)
-        end
-        if element and element.ri then
-            element = element.dt[element.ri]
-        end
-        if element then
-            traverse(root, lpath(pattern), function(rm, d, k)
-                d[k] = element.dt -- maybe not clever enough
-            end)
-        end
-    end
-
-    local function load_data(name) -- == io.loaddata
-        local f, data = io.open(name), ""
-        if f then
-            data = f:read("*all",'b') -- 'b' ?
-            f:close()
-        end
-        return data
-    end
-
-    function xml.include(xmldata,pattern,attribute,recursive,loaddata)
-        -- parse="text" (default: xml), encoding="" (todo)
-        -- attribute = attribute or 'href'
-        pattern = pattern or 'include'
-        loaddata = loaddata or load_data
-        local function include(r,d,k)
-            local ek, name = d[k], nil
-            if not attribute or attribute == "" then
-                local ekdt = ek.dt
-                name = (type(ekdt) == "table" and ekdt[1]) or ekdt
-            end
-            if not name then
-                if ek.at then
-                    for a in gmatch(attribute or "href","([^|]+)") do
-                        name = ek.at[a]
-                        if name then break end
-                    end
-                end
-            end
-            local data = (name and name ~= "" and loaddata(name)) or ""
-            if data == "" then
-                xml.empty(d,k)
-            elseif ek.at["parse"] == "text" then -- for the moment hard coded
-                d[k] = xml.escaped(data)
-            else
-                local xi = xml.convert(data)
-                if not xi then
-                    xml.empty(d,k)
-                else
-                    if recursive then
-                        xml.include(xi,pattern,attribute,recursive,loaddata)
-                    end
-                    xml.assign(d,k,xi)
-                end
-            end
-        end
-        xml.each_element(xmldata, pattern, include)
-    end
-
-    function xml.strip_whitespace(root, pattern, nolines) -- strips all leading and trailing space !
-        traverse(root, lpath(pattern), function(r,d,k)
-            local dkdt = d[k].dt
-            if dkdt then -- can be optimized
-                local t = { }
-                for i=1,#dkdt do
-                    local str = dkdt[i]
-                    if type(str) == "string" then
-
-                        if str == "" then
-                            -- stripped
-                        else
-                            if nolines then
-                                str = gsub(str,"[ \n\r\t]+"," ")
-                            end
-                            if str == "" then
-                                -- stripped
-                            else
-                                t[#t+1] = str
-                            end
-                        end
-                    else
-                        t[#t+1] = str
-                    end
-                end
-                d[k].dt = t
-            end
-        end)
-    end
-
-    local function rename_space(root, oldspace, newspace) -- fast variant
-        local ndt = #root.dt
-        for i=1,ndt or 0 do
-            local e = root[i]
-            if type(e) == "table" then
-                if e.ns == oldspace then
-                    e.ns = newspace
-                    if e.rn then
-                        e.rn = newspace
-                    end
-                end
-                local edt = e.dt
-                if edt then
-                    rename_space(edt, oldspace, newspace)
-                end
-            end
-        end
-    end
-
-    xml.rename_space = rename_space
-
-    function xml.remap_tag(root, pattern, newtg)
-        traverse(root, lpath(pattern), function(r,d,k)
-            d[k].tg = newtg
-        end)
-    end
-    function xml.remap_namespace(root, pattern, newns)
-        traverse(root, lpath(pattern), function(r,d,k)
-            d[k].ns = newns
-        end)
-    end
-    function xml.check_namespace(root, pattern, newns)
-        traverse(root, lpath(pattern), function(r,d,k)
-            local dk = d[k]
-            if (not dk.rn or dk.rn == "") and dk.ns == "" then
-                dk.rn = newns
-            end
-        end)
-    end
-    function xml.remap_name(root, pattern, newtg, newns, newrn)
-        traverse(root, lpath(pattern), function(r,d,k)
-            local dk = d[k]
-            dk.tg = newtg
-            dk.ns = newns
-            dk.rn = newrn
-        end)
-    end
-
-    function xml.filters.found(root,pattern,check_content)
-        local found = false
-        traverse(root, lpath(pattern), function(r,d,k)
-            if check_content then
-                local dk = d and d[k]
-                found = dk and dk.dt and next(dk.dt) and true
-            else
-                found = true
-            end
-            return true
-        end)
-        return found
-    end
-
-end
-
---[[ldx--
-<p>Here are a few synonyms.</p>
---ldx]]--
-
-xml.filters.position = xml.filters.index
-
-xml.count    = xml.filters.count
-xml.index    = xml.filters.index
-xml.position = xml.filters.index
-xml.first    = xml.filters.first
-xml.last     = xml.filters.last
-xml.found    = xml.filters.found
-
-xml.each     = xml.each_element
-xml.process  = xml.process_element
-xml.strip    = xml.strip_whitespace
-xml.collect  = xml.collect_elements
-xml.all      = xml.collect_elements
-
-xml.insert   = xml.insert_element_after
-xml.inject   = xml.inject_element_after
-xml.after    = xml.insert_element_after
-xml.before   = xml.insert_element_before
-xml.delete   = xml.delete_element
-xml.replace  = xml.replace_element
-
---[[ldx--
-<p>The following helper functions best belong to the <t>lmxl-ini</t>
-module. Some are here because we need then in the <t>mk</t>
-document and other manuals, others came up when playing with
-this module. Since this module is also used in <l n='mtxrun'/> we've
-put them here instead of loading mode modules there then needed.</p>
---ldx]]--
-
-function xml.gsub(t,old,new)
-    local dt = t.dt
-    if dt then
-        for k=1,#dt do
-            local v = dt[k]
-            if type(v) == "string" then
-                dt[k] = gsub(v,old,new)
-            else
-                xml.gsub(v,old,new)
-            end
-        end
-    end
-end
-
-function xml.strip_leading_spaces(dk,d,k) -- cosmetic, for manual
-    if d and k and d[k-1] and type(d[k-1]) == "string" then
-        local s = d[k-1]:match("\n(%s+)")
-        xml.gsub(dk,"\n"..string.rep(" ",#s),"\n")
-    end
-end
-
-function xml.serialize_path(root,lpath,handle)
-    local dk, r, d, k = xml.first(root,lpath)
-    dk = xml.copy(dk)
-    xml.strip_leading_spaces(dk,d,k)
-    xml.serialize(dk,handle)
-end
-
---~ xml.escapes   = { ['&'] = '&amp;', ['<'] = '&lt;', ['>'] = '&gt;', ['"'] = '&quot;' }
---~ xml.unescapes = { } for k,v in pairs(xml.escapes) do xml.unescapes[v] = k end
-
---~ function xml.escaped  (str) return (gsub(str,"(.)"   , xml.escapes  )) end
---~ function xml.unescaped(str) return (gsub(str,"(&.-;)", xml.unescapes)) end
---~ function xml.cleansed (str) return (gsub(str,"<.->"  , ''           )) end -- "%b<>"
-
-do
-
-    local P, S, R, C, V, Cc, Cs = lpeg.P, lpeg.S, lpeg.R, lpeg.C, lpeg.V, lpeg.Cc, lpeg.Cs
-
-    -- 100 * 2500 * "oeps< oeps> oeps&" : gsub:lpeg|lpeg|lpeg
-    --
-    -- 1021:0335:0287:0247
-
-    -- 10 * 1000 * "oeps< oeps> oeps& asfjhalskfjh alskfjh alskfjh alskfjh ;al J;LSFDJ"
-    --
-    -- 1559:0257:0288:0190 (last one suggested by roberto)
-
-    --    escaped = Cs((S("<&>") / xml.escapes + 1)^0)
-    --    escaped = Cs((S("<")/"&lt;" + S(">")/"&gt;" + S("&")/"&amp;" + 1)^0)
-    local normal  = (1 - S("<&>"))^0
-    local special = P("<")/"&lt;" + P(">")/"&gt;" + P("&")/"&amp;"
-    local escaped = Cs(normal * (special * normal)^0)
-
-    -- 100 * 1000 * "oeps&lt; oeps&gt; oeps&amp;" : gsub:lpeg == 0153:0280:0151:0080 (last one by roberto)
-
-    --    unescaped = Cs((S("&lt;")/"<" + S("&gt;")/">" + S("&amp;")/"&" + 1)^0)
-    --    unescaped = Cs((((P("&")/"") * (P("lt")/"<" + P("gt")/">" + P("amp")/"&") * (P(";")/"")) + 1)^0)
-    local normal    = (1 - S"&")^0
-    local special   = P("&lt;")/"<" + P("&gt;")/">" + P("&amp;")/"&"
-    local unescaped = Cs(normal * (special * normal)^0)
-
-    -- 100 * 5000 * "oeps <oeps bla='oeps' foo='bar'> oeps </oeps> oeps " : gsub:lpeg == 623:501 msec (short tags, less difference)
-
-    local cleansed = Cs(((P("<") * (1-P(">"))^0 * P(">"))/"" + 1)^0)
-
-    xml.escaped_pattern   = escaped
-    xml.unescaped_pattern = unescaped
-    xml.cleansed_pattern  = cleansed
-
-    function xml.escaped  (str) return escaped  :match(str) end
-    function xml.unescaped(str) return unescaped:match(str) end
-    function xml.cleansed (str) return cleansed :match(str) end
-
-end
-
-function xml.join(t,separator,lastseparator)
-    if #t > 0 then
-        local result = { }
-        for k,v in pairs(t) do
-            result[k] = xml.tostring(v)
-        end
-        if lastseparator then
-            return concat(result,separator or "",1,#result-1) .. (lastseparator or "") .. result[#result]
-        else
-            return concat(result,separator)
-        end
-    else
-        return ""
-    end
-end
-
-
---[[ldx--
-<p>We provide (at least here) two entity handlers. The more extensive
-resolver consults a hash first, tries to convert to <l n='utf'/> next,
-and finaly calls a handler when defines. When this all fails, the
-original entity is returned.</p>
---ldx]]--
-
-do if unicode and unicode.utf8 then
-
-    xml.entities = xml.entities or { } -- xml.entity_handler == function
-
-    function xml.entity_handler(e)
-        return format("[%s]",e)
-    end
-
-    local char = unicode.utf8.char
-
-    local function toutf(s)
-        return char(tonumber(s,16))
-    end
-
-    local function utfize(root)
-        local d = root.dt
-        for k=1,#d do
-            local dk = d[k]
-            if type(dk) == "string" then
-            --  test prevents copying if no match
-                if find(dk,"&#x.-;") then
-                    d[k] = gsub(dk,"&#x(.-);",toutf)
-                end
-            else
-                utfize(dk)
-            end
-        end
-    end
-
-    xml.utfize = utfize
-
-    local function resolve(e) -- hex encoded always first, just to avoid mkii fallbacks
-        if find(e,"^#x") then
-            return char(tonumber(e:sub(3),16))
-        elseif find(e,"^#") then
-            return char(tonumber(e:sub(2)))
-        else
-            local ee = xml.entities[e] -- we cannot shortcut this one (is reloaded)
-            if ee then
-                return ee
-            else
-                local h = xml.entity_handler
-                return (h and h(e)) or "&" .. e .. ";"
-            end
-        end
-    end
-
-    local function resolve_entities(root)
-        if not root.special or root.tg == "@rt@" then
-            local d = root.dt
-            for k=1,#d do
-                local dk = d[k]
-                if type(dk) == "string" then
-                    if find(dk,"&.-;") then
-                        d[k] = gsub(dk,"&(.-);",resolve)
-                    end
-                else
-                    resolve_entities(dk)
-                end
-            end
-        end
-    end
-
-    xml.resolve_entities = resolve_entities
-
-    function xml.utfize_text(str)
-        if find(str,"&#") then
-            return (gsub(str,"&#x(.-);",toutf))
-        else
-            return str
-        end
-    end
-
-    function xml.resolve_text_entities(str) -- maybe an lpeg. maybe resolve inline
-        if find(str,"&") then
-            return (gsub(str,"&(.-);",resolve))
-        else
-            return str
-        end
-    end
-
-    function xml.show_text_entities(str)
-        if find(str,"&") then
-            return (gsub(str,"&(.-);","[%1]"))
-        else
-            return str
-        end
-    end
-
-    -- experimental, this will be done differently
-
-    function xml.merge_entities(root)
-        local documententities = root.entities
-        local allentities = xml.entities
-        if documententities then
-            for k, v in next, documententities do
-                allentities[k] = v
-            end
-        end
-    end
-
-end end
-
-function xml.statistics()
-    return {
-        lpathcalls = lpathcalls,
-        lpathcached = lpathcached,
-    }
-end
-
---  xml.set_text_cleanup(xml.show_text_entities)
---  xml.set_text_cleanup(xml.resolve_text_entities)
-
---~ xml.lshow("/../../../a/(b|c)[@d='e']/f")
---~ xml.lshow("/../../../a/!(b|c)[@d='e']/f")
---~ xml.lshow("/../../../a/!b[@d!='e']/f")
-
---~ x = xml.convert([[
---~     <a>
---~         <b n='01'>01</b>
---~         <b n='02'>02</b>
---~         <b n='03'>03</b>
---~         <b n='04'>OK</b>
---~         <b n='05'>05</b>
---~         <b n='06'>06</b>
---~         <b n='07'>ALSO OK</b>
---~     </a>
---~ ]])
-
---~ xml.settrace("lpath",true)
-
---~ xml.xshow(xml.first(x,"b[position() > 2 and position() < 5 and text() == 'ok']"))
---~ xml.xshow(xml.first(x,"b[position() > 2 and position() < 5 and text() == upper('ok')]"))
---~ xml.xshow(xml.first(x,"b[@n=='03' or @n=='08']"))
---~ xml.xshow(xml.all  (x,"b[number(@n)>2 and number(@n)<6]"))
---~ xml.xshow(xml.first(x,"b[find(text(),'ALSO')]"))
-
---~ str = [[
---~ <?xml version="1.0" encoding="utf-8"?>
---~ <story line='mojca'>
---~     <windows>my secret</mouse>
---~ </story>
---~ ]]
-
---~ x = xml.convert([[
---~     <a><b n='01'>01</b><b n='02'>02</b><x>xx</x><b n='03'>03</b><b n='04'>OK</b></a>
---~ ]])
---~ xml.xshow(xml.first(x,"b[tag(2) == 'x']"))
---~ xml.xshow(xml.first(x,"b[tag(1) == 'x']"))
---~ xml.xshow(xml.first(x,"b[tag(-1) == 'x']"))
---~ xml.xshow(xml.first(x,"b[tag(-2) == 'x']"))
-
---~ print(xml.filter(x,"b/tag(2)"))
---~ print(xml.filter(x,"b/tag(1)"))
diff --git a/tex/context/base/lpdf-fld.lua b/tex/context/base/lpdf-fld.lua
index a4524c09d..b0823b478 100644
--- a/tex/context/base/lpdf-fld.lua
+++ b/tex/context/base/lpdf-fld.lua
@@ -470,12 +470,14 @@ end
 function codeinjections.getfieldgroup(name)
     local f = fields[name] or radios[name] or clones[name]
     local g = f and f.group
-    if not g then
-        local v = f.variant
+    if not g or g == "" then
+        local v, p, k = f.variant, f.parent, f.kind
         if v == "clone" or v == "copy" then
-            local p = f.parent
             f = fields[p] or radios[p]
             g = f and f.group
+        elseif k == "sub" then
+            f = fields[p]
+            g = f and f.group
         end
     end
     if g then
diff --git a/tex/context/base/luat-cod.mkiv b/tex/context/base/luat-cod.mkiv
index 001cc2aa9..d3b37d0e1 100644
--- a/tex/context/base/luat-cod.mkiv
+++ b/tex/context/base/luat-cod.mkiv
@@ -146,7 +146,7 @@
      {\ctxlua{environment.loadluafile("#1")}}
      {\ctxlua{environment.loadluafile("#1",#2)}}}
 
-\def\registerctxluafile#1#2% name version
+\def\registerctxluafile#1#2% name version (modules and core code)
   {\ifproductionrun
      \ctxloadluafile{#1}{#2}%
    \else
diff --git a/tex/context/base/trac-log.lua b/tex/context/base/trac-log.lua
index 2db6278ec..324b11cf0 100644
--- a/tex/context/base/trac-log.lua
+++ b/tex/context/base/trac-log.lua
@@ -8,6 +8,9 @@ if not modules then modules = { } end modules ['luat-log'] = {
 
 -- this is old code that needs an overhaul
 
+--~ io.stdout:setvbuf("no")
+--~ io.stderr:setvbuf("no")
+
 local write_nl, write, format = texio.write_nl or print, texio.write or io.write, string.format
 local texcount = tex and tex.count
 
@@ -89,27 +92,49 @@ function logs.tex.line(fmt,...) -- new
     end
 end
 
+--~ function logs.tex.start_page_number()
+--~     local real, user, sub = texcount.realpageno, texcount.userpageno, texcount.subpageno
+--~     if real > 0 then
+--~         if user > 0 then
+--~             if sub > 0 then
+--~                 write(format("[%s.%s.%s",real,user,sub))
+--~             else
+--~                 write(format("[%s.%s",real,user))
+--~             end
+--~         else
+--~             write(format("[%s",real))
+--~         end
+--~     else
+--~         write("[-")
+--~     end
+--~ end
+
+--~ function logs.tex.stop_page_number()
+--~     write("]")
+--~ end
+
+local real, user, sub
+
 function logs.tex.start_page_number()
-    local real, user, sub = texcount.realpageno, texcount.userpageno, texcount.subpageno
+    real, user, sub = texcount.realpageno, texcount.userpageno, texcount.subpageno
+end
+
+function logs.tex.stop_page_number()
     if real > 0 then
         if user > 0 then
             if sub > 0 then
-                write(format("[%s.%s.%s",real,user,sub))
+                logs.report("pages", "flushing page, realpage %s, userpage %s, subpage %s",real,user,sub)
             else
-                write(format("[%s.%s",real,user))
+                logs.report("pages", "flushing page, realpage %s, userpage %s",real,user)
             end
         else
-            write(format("[%s",real))
+            logs.report("pages", "flushing page, realpage %s",real)
         end
     else
-        write("[-")
+        logs.report("pages", "flushing page")
     end
 end
 
-function logs.tex.stop_page_number()
-    write("]")
-end
-
 logs.tex.report_job_stat = statistics.show_job_stat
 
 -- xml logging
diff --git a/tex/generic/context/luatex-fonts-merged.lua b/tex/generic/context/luatex-fonts-merged.lua
index d982247eb..86fa6cd3b 100644
--- a/tex/generic/context/luatex-fonts-merged.lua
+++ b/tex/generic/context/luatex-fonts-merged.lua
@@ -1,6 +1,6 @@
 -- merged file : c:/data/develop/context/texmf/tex/generic/context/luatex-fonts-merged.lua
 -- parent file : c:/data/develop/context/texmf/tex/generic/context/luatex-fonts.lua
--- merge date  : 11/23/09 11:55:47
+-- merge date  : 11/24/09 10:17:26
 
 do -- begin closure to overcome local limits and interference
 
@@ -5332,7 +5332,7 @@ otf.features.default = otf.features.default or { }
 otf.enhancers        = otf.enhancers        or { }
 otf.glists           = { "gsub", "gpos" }
 
-otf.version          = 2.635 -- beware: also sync font-mis.lua
+otf.version          = 2.636 -- beware: also sync font-mis.lua
 otf.pack             = true  -- beware: also sync font-mis.lua
 otf.syncspace        = true
 otf.notdef           = false