2020-08-11 15:59:00

41 files changed, 407 insertions, 261 deletions

diff --git a/tex/context/base/mkii/cont-new.mkii b/tex/context/base/mkii/cont-new.mkii
index a49342e78..76ad69c75 100644
--- a/tex/context/base/mkii/cont-new.mkii
+++ b/tex/context/base/mkii/cont-new.mkii
@@ -11,7 +11,7 @@
 %C therefore copyrighted by \PRAGMA. See mreadme.pdf for
 %C details.
 
-\newcontextversion{2020.08.09 22:00}
+\newcontextversion{2020.08.11 15:56}
 
 %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/mkii/context.mkii b/tex/context/base/mkii/context.mkii
index f3a860662..3937f8327 100644
--- a/tex/context/base/mkii/context.mkii
+++ b/tex/context/base/mkii/context.mkii
@@ -20,7 +20,7 @@
 %D your styles an modules.
 
 \edef\contextformat {\jobname}
-\edef\contextversion{2020.08.09 22:00}
+\edef\contextversion{2020.08.11 15:56}
 
 %D For those who want to use this:
 
diff --git a/tex/context/base/mkiv/back-out.lmt b/tex/context/base/mkiv/back-out.lmt
index af66d18c4..7d3ab3078 100644
--- a/tex/context/base/mkiv/back-out.lmt
+++ b/tex/context/base/mkiv/back-out.lmt
@@ -242,9 +242,9 @@ function nodepool.setmatrix(rx,sx,sy,ry,tx,ty)
     return t
 end
 
-interfaces.implement { name = "openout",   actions = openout,    public = true, protected = true, value = "none" }
-interfaces.implement { name = "write",     actions = write,      public = true, protected = true, value = "none" }
-interfaces.implement { name = "closeout",  actions = closeout,   public = true, protected = true, value = "none" }
+interfaces.implement { name = "openout",   actions = openout,    public = true, usage = "value" }
+interfaces.implement { name = "write",     actions = write,      public = true, usage = "value" }
+interfaces.implement { name = "closeout",  actions = closeout,   public = true, usage = "value" }
 interfaces.implement { name = "latelua",   actions = latelua,    public = true, protected = true }
 interfaces.implement { name = "special",   actions = scanstring, public = true, protected = true }
 
diff --git a/tex/context/base/mkiv/back-pdf.mkxl b/tex/context/base/mkiv/back-pdf.mkxl
index 9c55654d0..b2312bccd 100644
--- a/tex/context/base/mkiv/back-pdf.mkxl
+++ b/tex/context/base/mkiv/back-pdf.mkxl
@@ -58,6 +58,7 @@
 
 \unexpanded\def\pdfextension{\clf_pdfextension}
            \def\pdffeedback {\clf_pdffeedback}
+           \def\pdfvariable {\clf_pdfvariable}
 
 %D For the moment we keep this for tikz but hopefully it will at some point use
 %D the proper ones. Consider them obsolete:
diff --git a/tex/context/base/mkiv/back-pdp.lua b/tex/context/base/mkiv/back-pdp.lua
index 6e663f1dd..036c81177 100644
--- a/tex/context/base/mkiv/back-pdp.lua
+++ b/tex/context/base/mkiv/back-pdp.lua
@@ -214,7 +214,7 @@ local function pdfextension()
         if e then
             e()
         else
-            report("\\pdfextension: unknown %a",w)
+            report("\\pdfextension: unsupported %a",w)
         end
     end
 end
@@ -235,7 +235,7 @@ local function pdffeedback()
         if f then
             f()
         else
-            report("\\pdffeedback: unknown %a",w)
+            report("\\pdffeedback: unsupported %a",w)
         end
     end
 end
@@ -248,28 +248,30 @@ end
 -- linkmargin threadmargin vorigin xformmargin (tokenlists:) pageattr pageresources
 -- pagesattr pkmode trailerid xformattr xformresources
 
--- local variables = {
--- }
---
--- local function pdfvariable()
---     local w = scanword()
---     if w then
---         local f = variables[w]
---         if f then
---             f()
---         else
---             print("invalid variable",w)
---         end
---     else
---         print("missing variable")
---     end
--- end
+local variables = {
+    minorversion = function() context(lpdf.minorversion()) end,
+    majorversion = function() context(lpdf.majorversion()) end,
+}
+
+local function pdfvariable()
+    local w = scanword()
+    if w then
+        local f = variables[w]
+        if f then
+            f()
+        else
+            report("\\pdfvariable: unsupported %a",w)
+        end
+    else
+        print("missing variable")
+    end
+end
 
 -- kept:
 
 implement { name = "pdfextension", actions = pdfextension }
 implement { name = "pdffeedback",  actions = pdffeedback }
---------- { name = "pdfvariable",  actions = pdfvariable }
+implement { name = "pdfvariable",  actions = pdfvariable }
 
 -- for the moment (tikz)
 
diff --git a/tex/context/base/mkiv/cldf-ini.lua b/tex/context/base/mkiv/cldf-ini.lua
index 62a4d8e8a..9afe4c723 100644
--- a/tex/context/base/mkiv/cldf-ini.lua
+++ b/tex/context/base/mkiv/cldf-ini.lua
@@ -375,17 +375,14 @@ interfaces.storedscanners = storedscanners
 
 storage.register("interfaces/storedscanners", storedscanners, "interfaces.storedscanners")
 
-local function registerscanner(name,action,protected,public,value,condition) -- todo: combine value and condition
+local function registerscanner(name,action,protected,public,usage) -- todo: combine value and condition
     rawset(interfacescanners,name,action)
     local n = storedscanners[name]
     n = registerfunction("interfaces.scanners."..name,true,n)
     storedscanners[name] = n
     name = public and name or (privatenamespace .. name)
-    setluatoken(name,n,"global", -- always
-        protected and "protected" or "",
-        value     and "value"     or "",
-        condition and "condition" or ""
-    )
+ -- print(">>",name,protected and "protected" or "",usage or "macro")
+    setluatoken(name,n,"global",protected and "protected" or "",usage or "macro")
 end
 
 interfaces.registerscanner = registerscanner
diff --git a/tex/context/base/mkiv/cldf-lmt.lmt b/tex/context/base/mkiv/cldf-lmt.lmt
index d53abc444..f0ed8a40d 100644
--- a/tex/context/base/mkiv/cldf-lmt.lmt
+++ b/tex/context/base/mkiv/cldf-lmt.lmt
@@ -7,10 +7,12 @@ if not modules then modules = { } end modules ['cldf-lmt'] = {
 }
 
 local next, load = next, load
+local gmatch, gsub, byte = string.gmatch, string.gsub, string.byte
 
 local setmetatableindex    = table.setmetatableindex
 local setmetatablenewindex = table.setmetatablenewindex
 local serialize            = table.serialize
+local concat               = table.concat
 
 local random            = math.random
 local randomseed        = math.randomseed
@@ -36,6 +38,9 @@ local scantoken         = scanners.token
 local scancsname        = scanners.csname
 local scankeyword       = scanners.keyword
 
+local peekchar          = scanners.peekchar
+local skipnext          = scanners.skip
+
 local getindex          = token.get_index
 
 local texsetdimen       = tex.setdimen
@@ -60,10 +65,10 @@ local cardinals = { }
 local numbers   = { }
 
 implement {
-    name      = "luafloat",
-    public    = true,
-    value     = true,
-    actions   = function(b)
+    name    = "luafloat",
+    public  = true,
+    usage   = "value",
+    actions = function(b)
         local n = scanword()
         if b == "value" then
             context("%.99g",floats[n] or 0)
@@ -75,10 +80,10 @@ implement {
 }
 
 implement {
-    name      = "luainteger",
-    public    = true,
-    value     = true,
-    actions   = function(b)
+    name    = "luainteger",
+    public  = true,
+    usage   = "value",
+    actions = function(b)
         local n = scanword()
         if b == "value" then
             context("%i",integers[n] or 0)
@@ -89,10 +94,10 @@ implement {
 }
 
 implement {
-    name      = "luacount",
-    public    = true,
-    value     = true,
-    actions   = function(b)
+    name    = "luacount",
+    public  = true,
+    usage   = "value",
+    actions = function(b)
         local n = scanword()
         if b == "value" then
             return integer_code, integers[n] or 0
@@ -103,10 +108,10 @@ implement {
 }
 
 implement {
-    name      = "luadimen",
-    public    = true,
-    value     = true,
-    actions   = function(b)
+    name    = "luadimen",
+    public  = true,
+    usage   = "value",
+    actions = function(b)
         local n = scanword()
         if b == "value" then
             return dimension_code, integers[n] or 0
@@ -117,10 +122,10 @@ implement {
 }
 
 implement {
-    name      = "luacardinal",
-    public    = true,
-    value     = true,
-    actions   = function(b)
+    name    = "luacardinal",
+    public  = true,
+    usage   = "value",
+    actions = function(b)
         local n = scanword()
         if b == "value" then
             context("%1.0f",cardinals[n] or 0)
@@ -131,10 +136,10 @@ implement {
 }
 
 implement {
-    name      = "luanumber",
-    public    = true,
-    value     = true,
-    actions   = function(b)
+    name    = "luanumber",
+    public  = true,
+    usage   = "value",
+    actions = function(b)
         local n = scanword()
         if b == "value" then
             context("%N",floats[n] or integers[n] or cardinals[n] or 0) -- maybe %N
@@ -146,10 +151,10 @@ implement {
 }
 
 implement {
-    name      = "luarandom",
-    public    = true,
-    value     = true,
-    actions   = function(b)
+    name    = "luarandom",
+    public  = true,
+    usage   = "value",
+    actions = function(b)
         if b == "value" then
             return integer_code, random(scanluainteger(),scanluainteger())
         else
@@ -236,10 +241,10 @@ implement {
 }
 
 implement {
-    name      = "arrayvalue",
-    public    = true,
-    value     = true,
-    actions   = function(b)
+    name    = "arrayvalue",
+    public  = true,
+    usage   = "value",
+    actions = function(b)
         local name = scanstring()
         if name then
             local a = arrays[name]
@@ -267,10 +272,10 @@ implement {
 }
 
 implement {
-    name      = "arrayequals",
-    public    = true,
-    value     = true,
-    actions   = function(b)
+    name    = "arrayequals",
+    public  = true,
+    usage   = "value",
+    actions = function(b)
         local name = scanstring()
         if name then
             local a = arrays[name]
@@ -291,10 +296,10 @@ implement {
 }
 
 implement {
-    name      = "arraycompare",
-    public    = true,
-    value     = true,
-    actions   = function(b)
+    name    = "arraycompare",
+    public  = true,
+    usage   = "value",
+    actions = function(b)
         local name = scanstring()
         if name then
             local a = arrays[name]
@@ -382,10 +387,10 @@ implement {
 local dimenfactors = number.dimenfactors
 
 implement {
-    name      = "nodimen",
-    public    = true,
-    value     = true,
-    actions   = function(b)
+    name    = "nodimen",
+    public  = true,
+    usage   = "value",
+    actions = function(b)
         if b == "value" then
             local how  = scanword()
             local what = scandimen()
@@ -535,7 +540,6 @@ end
 implement {
     name      = "newluatable",
     protected = true,
- -- public    = true,
     arguments = "csname",
     actions   = newluatable,
 }
@@ -543,7 +547,6 @@ implement {
 implement {
     name      = "useluatable",
     protected = true,
- -- public    = true,
     arguments = { "csname", true },
     actions   = newluatable,
 }
@@ -695,7 +698,7 @@ local function newtable(array)
         interfaces.implement {
             name    = name,
             public  = true,
-            value   = true,
+            usage   = "value",
             actions = function(b)
                 handletable(t,b,array)
             end,
@@ -738,7 +741,7 @@ end
 implement {
     name    = "bitwiseset",
     public  = true,
-    value   = true,
+    usage   = "value",
     actions = function(what)
         local a = scancardinal()
         if what == "value" then
@@ -752,7 +755,7 @@ implement {
 implement {
     name    = "bitwiseand",
     public  = true,
-    value   = true,
+    usage   = "value",
     actions = function(what)
         local a = scancardinal()
         scankeyword("with")
@@ -768,7 +771,7 @@ implement {
 implement {
     name    = "bitwiseor",
     public  = true,
-    value   = true,
+    usage   = "value",
     actions = function(what)
         local a = scancardinal()
         scankeyword("with")
@@ -784,7 +787,7 @@ implement {
 implement {
     name    = "bitwisexor",
     public  = true,
-    value   = true,
+    usage   = "value",
     actions = function(what)
         local a = scancardinal()
         scankeyword("with")
@@ -800,7 +803,7 @@ implement {
 implement {
     name    = "bitwisenot",
     public  = true,
-    value   = true,
+    usage   = "value",
     actions = function(what)
         local a = scancardinal()
         if what == "value" then
@@ -814,7 +817,7 @@ implement {
 implement {
     name    = "bitwisenil",
     public  = true,
-    value   = true,
+    usage   = "value",
     actions = function(what)
         local a = scancardinal()
         scankeyword("with")
@@ -830,10 +833,73 @@ implement {
 implement {
     name      = "ifbitwiseand",
     public    = true,
-    condition = true,
+    usage     = "condition",
     actions   = function(what)
         local a = scancardinal()
         local b = scancardinal()
         return boolean_code, (a & b) ~= 0
     end
 }
+
+interfaces.implement {
+    name      = "bitwise",
+    public    = true,
+    usage     = "value",
+    actions   = function(what)
+        if what == "value" then
+            local b = 0
+            while true do
+                local c = peekchar()
+                if c == 48 or c == 49 then
+                    skipnext()
+                    b = (b << 1) + (c - 48)
+                    if b == 0xFFFFFFFF then
+                        break
+                    end
+                else
+                    break
+                end
+            end
+            return 1, b
+        else
+            local b = scancardinal()
+            local t = nil
+            local n = 0
+            for i=1,32 do
+                if (b & (0x100000000 >> i)) == 0 then
+                    if n > 0 then
+                        n = n + 1
+                        t[n] = "0"
+                    end
+                elseif t then
+                    n = n + 1
+                    t[n] = "1"
+                else
+                    n = 1
+                    t = { "1" }
+                end
+            end
+            context(n > 0 and table.concat(t) or "0")
+        end
+    end,
+}
+
+-- something to play with, this might move to syst-aux.lmt when we have that
+
+local escape = function(s) return "\\" .. byte(s) end
+
+interfaces.implement {
+    name   = "ctxluamatch",
+    public = true,
+    value  = true,
+    actions   = function()
+        local command = context[scancsname()]
+        local pattern = gsub(scanstring(),"\\.",escape)
+        local input   = gsub(scanstring(),"\\.",escape)
+        for a, b, c, d, e, f, g, h, i in gmatch(input,pattern) do
+            command(a, b or "", c or "", d or "", e or "", f or "", g or "", h or "", i or "")
+        end
+        return none_code
+    end,
+}
+
diff --git a/tex/context/base/mkiv/cldf-scn.lua b/tex/context/base/mkiv/cldf-scn.lua
index 8fd4f2978..fa7ff042c 100644
--- a/tex/context/base/mkiv/cldf-scn.lua
+++ b/tex/context/base/mkiv/cldf-scn.lua
@@ -77,7 +77,7 @@ function interfaces.implement(specification)
     if knownscanner(name) and not specification.overload then
         report("warning: interface scanner %a is overloaded",name)
     end
-    register(name,scanner,specification.protected,specification.public,specification.value,specification.condition)
+    register(name,scanner,specification.protected,specification.public,specification.usage)
     if private then
         return
     end
diff --git a/tex/context/base/mkiv/colo-ini.mkxl b/tex/context/base/mkiv/colo-ini.mkxl
index 398465a8d..72ee3db32 100644
--- a/tex/context/base/mkiv/colo-ini.mkxl
+++ b/tex/context/base/mkiv/colo-ini.mkxl
@@ -1195,15 +1195,10 @@
 \setvalue{\??colorattribute        currentcolor}{\the\c_attr_color}        % for mpcolor
 \setvalue{\??transparencyattribute currentcolor}{\the\c_attr_transparency} % for mpcolor
 
-%def\colo_helpers_inherited_current_ca#1{\csname\??colorattribute       \ifcsname\??colorattribute       \currentcolorprefix#1\endcsname\currentcolorprefix#1\else\ifcsname\??colorattribute       #1\endcsname#1\fi\fi\endcsname}
-%def\colo_helpers_inherited_current_cs#1{\csname\??colorsetter          \ifcsname\??colorsetter          \currentcolorprefix#1\endcsname\currentcolorprefix#1\else\ifcsname\??colorsetter          #1\endcsname#1\fi\fi\endcsname}
-%def\colo_helpers_inherited_current_ta#1{\csname\??transparencyattribute\ifcsname\??transparencyattribute\currentcolorprefix#1\endcsname\currentcolorprefix#1\else\ifcsname\??transparencyattribute#1\endcsname#1\fi\fi\endcsname}
-%def\colo_helpers_inherited_current_ts#1{\csname\??transparencysetter   \ifcsname\??transparencysetter   \currentcolorprefix#1\endcsname\currentcolorprefix#1\else\ifcsname\??transparencysetter   #1\endcsname#1\fi\fi\endcsname}
-
-\def\colo_helpers_inherited_current_ca#1{\ifcsname\??colorattribute       \currentcolorprefix#1\endcsname\lastnamedcs\else\ifcsname\??colorattribute       #1\endcsname\lastnamedcs\else\!!zerocount\fi\fi}
-\def\colo_helpers_inherited_current_cs#1{\ifcsname\??colorsetter          \currentcolorprefix#1\endcsname\lastnamedcs\else\ifcsname\??colorsetter          #1\endcsname\lastnamedcs\else\fi\fi}
-\def\colo_helpers_inherited_current_ta#1{\ifcsname\??transparencyattribute\currentcolorprefix#1\endcsname\lastnamedcs\else\ifcsname\??transparencyattribute#1\endcsname\lastnamedcs\else\!!zerocount\fi\fi}
-\def\colo_helpers_inherited_current_ts#1{\ifcsname\??transparencysetter   \currentcolorprefix#1\endcsname\lastnamedcs\else\ifcsname\??transparencysetter   #1\endcsname\lastnamedcs\else\fi\fi}
+\def\colo_helpers_inherited_current_ca#1{\ifcsname\??colorattribute       \currentcolorprefix#1\endcsname\lastnamedcs\orelse\ifcsname\??colorattribute       #1\endcsname\lastnamedcs\else\!!zerocount\fi}
+\def\colo_helpers_inherited_current_cs#1{\ifcsname\??colorsetter          \currentcolorprefix#1\endcsname\lastnamedcs\orelse\ifcsname\??colorsetter          #1\endcsname\lastnamedcs\fi}
+\def\colo_helpers_inherited_current_ta#1{\ifcsname\??transparencyattribute\currentcolorprefix#1\endcsname\lastnamedcs\orelse\ifcsname\??transparencyattribute#1\endcsname\lastnamedcs\else\!!zerocount\fi}
+\def\colo_helpers_inherited_current_ts#1{\ifcsname\??transparencysetter   \currentcolorprefix#1\endcsname\lastnamedcs\orelse\ifcsname\??transparencysetter   #1\endcsname\lastnamedcs\fi}
 
 %D Low level defs:
 
@@ -1272,9 +1267,6 @@
 
 \def\thecolormodelattribute    {\the\c_attr_colormodel}
 
-%def\thecolorattribute       #1{\number\csname\??colorattribute       \ifcsname\??colorattribute       \currentcolorprefix#1\endcsname\currentcolorprefix#1\else\ifcsname\??colorattribute       #1\endcsname#1\fi\fi\endcsname}
-%def\thetransparencyattribute#1{\number\csname\??transparencyattribute\ifcsname\??transparencyattribute\currentcolorprefix#1\endcsname\currentcolorprefix#1\else\ifcsname\??transparencyattribute#1\endcsname#1\fi\fi\endcsname}
-
 \def\rawcolorattribute       #1{\ifcsname\??colorattribute       \currentcolorprefix#1\endcsname\lastnamedcs\orelse\ifcsname\??colorattribute       #1\endcsname\lastnamedcs\else\zerocount\fi}
 \def\rawtransparencyattribute#1{\ifcsname\??transparencyattribute\currentcolorprefix#1\endcsname\lastnamedcs\orelse\ifcsname\??transparencyattribute#1\endcsname\lastnamedcs\else\zerocount\fi}
 
diff --git a/tex/context/base/mkiv/cont-new.mkiv b/tex/context/base/mkiv/cont-new.mkiv
index e3523284e..92ff8565e 100644
--- a/tex/context/base/mkiv/cont-new.mkiv
+++ b/tex/context/base/mkiv/cont-new.mkiv
@@ -13,7 +13,7 @@
 
 % \normalend % uncomment this to get the real base runtime
 
-\newcontextversion{2020.08.09 22:00}
+\newcontextversion{2020.08.11 15:56}
 
 %D This file is loaded at runtime, thereby providing an excellent place for hacks,
 %D patches, extensions and new features. There can be local overloads in cont-loc
diff --git a/tex/context/base/mkiv/context.mkiv b/tex/context/base/mkiv/context.mkiv
index ad7844715..367f7ea0f 100644
--- a/tex/context/base/mkiv/context.mkiv
+++ b/tex/context/base/mkiv/context.mkiv
@@ -45,7 +45,7 @@
 %D {YYYY.MM.DD HH:MM} format.
 
 \edef\contextformat {\jobname}
-\edef\contextversion{2020.08.09 22:00}
+\edef\contextversion{2020.08.11 15:56}
 
 %D Kind of special:
 
diff --git a/tex/context/base/mkiv/context.mkxl b/tex/context/base/mkiv/context.mkxl
index 2d67ceca0..4f413f726 100644
--- a/tex/context/base/mkiv/context.mkxl
+++ b/tex/context/base/mkiv/context.mkxl
@@ -29,7 +29,7 @@
 %D {YYYY.MM.DD HH:MM} format.
 
 \edef\contextformat {\jobname}
-\edef\contextversion{2020.08.09 22:00}
+\edef\contextversion{2020.08.11 15:56}
 
 %D Kind of special:
 
diff --git a/tex/context/base/mkiv/core-lmt.lmt b/tex/context/base/mkiv/core-lmt.lmt
index 700ce4721..ccbdcc0df 100644
--- a/tex/context/base/mkiv/core-lmt.lmt
+++ b/tex/context/base/mkiv/core-lmt.lmt
@@ -6,29 +6,90 @@ if not modules then modules = { } end modules ['core-lmt'] = {
     license   = "see context related readme files"
 }
 
+-- Kind of obsolete ... old school directions.
+
 local implement   = interfaces.implement
 local scankeyword = tokens.scanners.keyword
+local scaninteger = tokens.scanners.integer
+
+local settextdir  = tex.settextdir
+local setlinedir  = tex.setlinedir
+local setpardir   = tex.setpardir
+local setboxdir   = tex.setboxdir
+
+local gettextdir  = tex.gettextdir
+local getlinedir  = tex.getlinedir
+local getpardir   = tex.getpardir
+local getboxdir   = tex.getboxdir
 
-local settextdir = tex.settextdir
-local setlinedir = tex.setlinedir
-local setpardir  = tex.setpardir
-local setboxdir  = tex.setboxdir
+local none_code   = tokens.values.none
 
-local function scandir(what)
+local context     = context
+
+local function scandir()
     if scankeyword("tlt") then
-        what(0)
+        return 0
     elseif scankeyword("trt") then
-        what(1)
- -- elseif scankeyword("rtt") then
- --     what(2)
- -- elseif scankeyword("ltl") then
- --     what(3)
+        return 1
     else
-        what(0)
+        return 0
     end
 end
 
-implement { name = "textdir", public = true, protected = true, actions = function() scandir(settextdir) end }
-implement { name = "linedir", public = true, protected = true, actions = function() scandir(setlinedir) end }
-implement { name = "pardir",  public = true, protected = true, actions = function() scandir(setpardir)  end }
-implement { name = "boxdir",  public = true, protected = true, actions = function() scandir(setboxdir)  end }
+local function showdir(d)
+    context(d == 1 and "TRT" or "LTL")
+    return none_code
+end
+
+implement {
+    name    = "textdir",
+    public  = true,
+    usage   = "value",
+    actions = function(what)
+        if what == "value" then
+            showdir(gettextdir())
+        else
+            settextdir(scandir())
+        end
+    end
+}
+
+implement {
+    name    = "linedir",
+    public  = true,
+    usage   = "value",
+    actions = function(what)
+        if what == "value" then
+            return showdir(getlinedir())
+        else
+            setlinedir(scandir())
+        end
+    end
+}
+
+implement {
+    name    = "pardir",
+    public  = true,
+    usage   = "value",
+    actions = function(what)
+        if what == "value" then
+            return showdir(getpardir())
+        else
+            setpardir(scandir())
+        end
+    end
+}
+
+implement {
+    name    = "boxdir",
+    public  = true,
+    usage   = "value",
+    actions = function(what)
+        local n = scaninteger()
+        if what == "value" then
+            return showdir(getboxdir(n))
+        else
+            setboxdir(n,scandir())
+        end
+    end
+}
diff --git a/tex/context/base/mkiv/font-ini.mklx b/tex/context/base/mkiv/font-ini.mklx
index f386d45d1..882f879a2 100644
--- a/tex/context/base/mkiv/font-ini.mklx
+++ b/tex/context/base/mkiv/font-ini.mklx
@@ -2075,22 +2075,22 @@
   {\currentxfontsize\plusone
    \ifmmode
      \scriptstyle
-   \else\ifconditional\c_font_inherit_scale
+   \orelse\ifconditional\c_font_inherit_scale
      \font_scale_inherit_x
    \else
      \font_scale_defined_x
-   \fi\fi
+   \fi
    \let\tx\txx}
 
 \unexpanded\def\txx
   {\currentxfontsize\plustwo
    \ifmmode
      \scriptscriptstyle
-   \else\ifconditional\c_font_inherit_scale
+   \orelse\ifconditional\c_font_inherit_scale
      \font_scale_inherit_xx
    \else
      \font_scale_defined_xx
-   \fi\fi
+   \fi
    \let\tx \empty
    \let\txx\empty}
 
diff --git a/tex/context/base/mkiv/lang-ini.mkxl b/tex/context/base/mkiv/lang-ini.mkxl
index b7a589b47..3afbf5680 100644
--- a/tex/context/base/mkiv/lang-ini.mkxl
+++ b/tex/context/base/mkiv/lang-ini.mkxl
@@ -195,20 +195,6 @@
 \unexpanded\def\installlanguage
   {\dodoubleargument\lang_basics_install}
 
-% \def\lang_basics_install[#1][#2]%
-%   {\doifelseassignment{#2}
-%      {\doifelselanguage{#1}
-%         {\getparameters[\??language#1][#2]}
-%         {\setvalue{\??languagelinked#1}{#1}%
-%          \lang_basics_install_indeed{#1}{#1}%
-%          \getparameters[\??language#1][\c!state=\v!start,#2]}%
-%       \edef\currentsetuplanguage{#1}%
-%       \clf_definelanguage{#1}{\specificlanguageparameter{#1}\s!default}%
-%       \the\everysetuplanguage}
-%      {\setvalue{\??languagelinked#1}{#2}%
-%       \clf_setlanguagesynonym{#1}{#2}%
-%       \lang_basics_install_indeed{#1}{#2}}}
-
 \def\lang_basics_install[#1][#2]%
   {\ifcondition\validassignment{#2}%
      \doifelselanguage{#1}
@@ -426,17 +412,20 @@
 % But this one is nicer because we do keep the language set as well as don't mess
 % with the min values (it's more efficient too). We might get some more bits in
 % this mode (engine specific).
-%
-% \let \hyphenationenabledcode   \plusone
-% \let \hyphenationuppercasecode \plustwo
-%
-% \protected\def\dohyphens
-%   {\hyphenationmode \numexpr
-%      \hyphenationenabledcode
-%     +\hyphenationuppercasecode
-%    \relax}
 
-\unexpanded\def\dohyphens{\hyphenationmode\plusthree}
+\exhyphenchar 45 % to permit breaking at explicit hyphens
+
+% \uchyph\plusone :
+
+\chardef \completehyphenationmodecode \numexpr
+    \normalhyphenationmodecode    % \discretionary
+  + \automatichyphenationmodecode % -
+  + \explicithyphenationmodecode  % \-
+  + \syllablehyphenationmodecode  % pattern driven
+  + \uppercasehyphenationmodecode % uchyph
+\relax
+
+\unexpanded\def\dohyphens{\hyphenationmode\completehyphenationmodecode}
 \unexpanded\def\nohyphens{\hyphenationmode\zerocount}
 
 \unexpanded\def\usehyphensparameter#1%
@@ -737,11 +726,6 @@
 \unexpanded\def\hyphenation
   {\clf_setlanguageexceptions{\currentlanguage}}
 
-%D For the moment here:
-
-\uchyph        1 % also treat uppercase
-\exhyphenchar 45 % to permit breaking at explicit hyphens
-
 %D New:
 
 \unexpanded\def\traceddiscretionary#1#2#3%
diff --git a/tex/context/base/mkiv/lang-mis.mkxl b/tex/context/base/mkiv/lang-mis.mkxl
index c01a3eada..d7e359d90 100644
--- a/tex/context/base/mkiv/lang-mis.mkxl
+++ b/tex/context/base/mkiv/lang-mis.mkxl
@@ -213,11 +213,11 @@
    \csname\??discretionarymode
      \ifcase\discretionarymode
        n%
-     \else\ifmmode
+     \orelse\ifmmode
        m%
      \else
        t%
-     \fi\fi
+     \fi
    \endcsname}
 
 \setvalue{\??discretionarymode n}#1%
@@ -387,13 +387,13 @@
   {\ifconditional\spaceafterdiscretionary
      %prewordbreak\hbox{#1}\relax
      \wordboundary\hbox{#1}\relax
-   \else\ifconditional\punctafterdiscretionary
+   \orelse\ifconditional\punctafterdiscretionary
      %prewordbreak\hbox{#1}\relax
      \wordboundary\hbox{#1}\relax
    \else
     %\prewordbreak#2\postwordbreak % was prewordbreak
      \wordboundary#2\wordboundary
-   \fi\fi}
+   \fi}
 
 \definetextmodediscretionary {}
   {\lang_discretionaries_hyphen_like\textmodehyphen\textmodehyphendiscretionary}
diff --git a/tex/context/base/mkiv/lpdf-fmt.lua b/tex/context/base/mkiv/lpdf-fmt.lua
index 388db0be3..c6a3f25ff 100644
--- a/tex/context/base/mkiv/lpdf-fmt.lua
+++ b/tex/context/base/mkiv/lpdf-fmt.lua
@@ -885,8 +885,8 @@ function codeinjections.setformat(s)
             end
             local pdf_version         = spec.pdf_version * 10
             local inject_metadata     = spec.inject_metadata
-            local majorversion        = math.div(pdf_version,10)
-            local minorversion        = math.mod(pdf_version,10)
+            local majorversion        = math.floor(math.div(pdf_version,10))
+            local minorversion        = math.floor(math.mod(pdf_version,10))
             local objectcompression   = spec.object_compression and pdf_version >= 15
             local compresslevel       = level or lpdf.compresslevel() -- keep default
             local objectcompresslevel = (objectcompression and (level or lpdf.objectcompresslevel())) or 0
diff --git a/tex/context/base/mkiv/lpdf-lmt.lmt b/tex/context/base/mkiv/lpdf-lmt.lmt
index 48297846e..2bbf5ba61 100644
--- a/tex/context/base/mkiv/lpdf-lmt.lmt
+++ b/tex/context/base/mkiv/lpdf-lmt.lmt
@@ -2216,6 +2216,7 @@ local openfile, closefile  do
 
     local inmemory = false
     local close    = false
+    local update   = false
 
  -- local removefile = os.remove
 
@@ -2225,13 +2226,16 @@ local openfile, closefile  do
             f = { }
             flush = function(f,s)
                 n = n + 1 f[n] = s
-offset = offset + #s
+             -- offset = offset + #s
             end
             close = function(f)
                 f = concat(f)
                 io.savedata(filename,f)
                 f = false
             end
+            update = function(f,s)
+                f[1] = s
+            end
          -- local n = 0
          -- f = {
          --     write = function(self,s)
@@ -2253,8 +2257,11 @@ offset = offset + #s
             local m = getmetatable(f)
             flush = m.write or m.__index.write
             close = m.close or m.__index.close
+            update = function(f,s)
+                f:seek("set",0)
+                f:write(s)
+            end
         end
-        --
         local v = f_pdf(majorversion,minorversion)
      -- local b = "%\xCC\xD5\xC1\xD4\xC5\xD8\xD0\xC4\xC6\010"     -- LUATEXPDF  (+128)
         local b = "%\xC3\xCF\xCE\xD4\xC5\xD8\xD4\xD0\xC4\xC6\010" -- CONTEXTPDF (+128)
@@ -2265,7 +2272,7 @@ offset = offset + #s
 
     closefile = function(abort)
         if abort then
-            f:close()
+            close(f)
             if not environment.arguments.nodummy then
                 f = io.open(abort,"wb")
                 if f then
@@ -2464,7 +2471,8 @@ offset = offset + #s
                     flush(f,f_trailer_no(trailer(),xrefoffset))
                 end
             end
-            f:close()
+            update(f,f_pdf(majorversion,minorversion))
+            close(f)
         end
         io.flush()
         closefile = function() end
diff --git a/tex/context/base/mkiv/math-ini.mkxl b/tex/context/base/mkiv/math-ini.mkxl
index c2a92fe5d..672ef04cc 100644
--- a/tex/context/base/mkiv/math-ini.mkxl
+++ b/tex/context/base/mkiv/math-ini.mkxl
@@ -2743,7 +2743,7 @@
 % 0x002B=plus 0x2212=minus 0x2013=endash
 
 \unexpanded\def\mathplus     {+}
-\unexpanded\def\mathminus    {\ifmmode –\else\iffontchar\font`−−\else –\fi\fi}
+\unexpanded\def\mathminus    {\ifmmode –\orelse\iffontchar\font`−−\else –\fi}
 \unexpanded\def\mathplusminus{±}
 
 %D The \type {\displaywidth} is only known inside a display formula, so we need to catch
diff --git a/tex/context/base/mkiv/meta-ini.mkxl b/tex/context/base/mkiv/meta-ini.mkxl
index 513f87ae2..28fe09b9e 100644
--- a/tex/context/base/mkiv/meta-ini.mkxl
+++ b/tex/context/base/mkiv/meta-ini.mkxl
@@ -587,13 +587,13 @@
 \def\meta_prepare_variable_yes
   {\ifchkdim\m_meta_current_variable\or
      \meta_prepare_variable_dimension
-   \else\ifchknum\m_meta_current_variable\or
+   \orelse\ifchknum\m_meta_current_variable\or
      \meta_prepare_variable_number
    \else
       \doifelsecolor\m_meta_current_variable
         \meta_prepare_variable_color
         \meta_prepare_variable_dimension
-   \fi\fi}
+   \fi}
 
 \let\MPvar         \MPvariable
 \let\setMPvariables\setupMPvariables
diff --git a/tex/context/base/mkiv/meta-mac.mkxl b/tex/context/base/mkiv/meta-mac.mkxl
index 3bf38b4c8..7ced2aff9 100644
--- a/tex/context/base/mkiv/meta-mac.mkxl
+++ b/tex/context/base/mkiv/meta-mac.mkxl
@@ -46,7 +46,7 @@
      \meta_process_graphic{lmt_#2;}%
      \clf_lmt_parameters_reset{#2}%
      \meta_end_graphic_group
-   \else\ifsecondargument
+   \orelse\ifsecondargument
      \doifelseassignment{#2}
        {\let\currentMPinstance\defaultMPinstance
         \meta_enable_include
@@ -61,6 +61,6 @@
      \let\currentMPinstance\defaultMPinstance
      \meta_enable_include
      \meta_process_graphic{lmt_#1;}%
-   \fi\fi}
+   \fi}
 
 \protect
diff --git a/tex/context/base/mkiv/mult-aux.mkxl b/tex/context/base/mkiv/mult-aux.mkxl
index fef40ec2c..1df5bcf24 100644
--- a/tex/context/base/mkiv/mult-aux.mkxl
+++ b/tex/context/base/mkiv/mult-aux.mkxl
@@ -853,14 +853,14 @@
 %       \ifsecondargument
 %         \edef#2{##1}%
 %         #3[##2]%
-%       \else\iffirstargument
+%       \orelse\iffirstargument
 %         \doifelseassignment{##1}
 %           {\let#2\empty
 %            #3[##1]}%
 %           {\edef#2{##1}}%
 %       \else
 %         \let#2\empty
-%       \fi\fi
+%       \fi
 %       \directsetup{handler:action:#1}%
 %       \endgroup}}
 
@@ -922,7 +922,7 @@
 %def\v_interfaces_prefix_template{\characters\c_mult_interfaces_n_of_namespaces>}
 
 %def\v_interfaces_prefix_template % consistently %03i>
-% {\ifnum\c_mult_interfaces_n_of_namespaces<\plusten00\else\ifnum\c_mult_interfaces_n_of_namespaces<\plushundred0\fi\fi
+% {\ifnum\c_mult_interfaces_n_of_namespaces<\plusten00\orelse\ifnum\c_mult_interfaces_n_of_namespaces<\plushundred0\fi
 %  \number\c_mult_interfaces_n_of_namespaces>}
 
 \def\v_interfaces_prefix_template
diff --git a/tex/context/base/mkiv/mult-low.lua b/tex/context/base/mkiv/mult-low.lua
index 9275f2a56..f830b7473 100644
--- a/tex/context/base/mkiv/mult-low.lua
+++ b/tex/context/base/mkiv/mult-low.lua
@@ -158,6 +158,9 @@ return {
         "startlmtxmode", "stoplmtxmode", "startmkivmode", "stopmkivmode",
         --
         "wildcardsymbol",
+        --
+        "normalhyphenationmodecode", "automatichyphenationmodecode", "explicithyphenationmodecode",
+        "syllablehyphenationmodecode", "uppercasehyphenationmodecode", "completehyphenationmodecode",
     },
     ["helpers"] = {
         --
@@ -369,6 +372,7 @@ return {
         "gobbleoneoptional", "gobbletwooptionals", "gobblethreeoptionals", "gobblefouroptionals", "gobblefiveoptionals",
         --
         "dorecurse", "doloop", "exitloop", "dostepwiserecurse", "recurselevel", "recursedepth", "dofastloopcs", "fastloopindex", "fastloopfinal", "dowith",
+        "doloopovermatch", "doloopoverlist",
         --
         "newconstant", "setnewconstant", "setconstant", "setconstantvalue",
         "newconditional", "settrue", "setfalse", "settruevalue", "setfalsevalue",
@@ -453,7 +457,7 @@ return {
         "ctxlua", "luacode", "lateluacode", "directluacode",
         "registerctxluafile", "ctxloadluafile",
         "luaversion", "luamajorversion", "luaminorversion",
-        "ctxluacode", "luaconditional", "luaexpanded",
+        "ctxluacode", "luaconditional", "luaexpanded", "ctxluamatch",
         "startluaparameterset", "stopluaparameterset", "luaparameterset",
         "definenamedlua",
         "obeylualines", "obeyluatokens",
@@ -511,6 +515,8 @@ return {
         "boxrangewd", "boxrangeht", "boxrangedp",
         --
         "bitwiseset", "bitwiseand", "bitwiseor", "bitwisexor", "bitwisenot", "bitwisenil",
-        "ifbitwiseand",
+        "ifbitwiseand", "bitwise",
+        -- old ... very low level
+        "textdir", "linedir", "pardir", "boxdir",
     }
 }
diff --git a/tex/context/base/mkiv/pack-mrl.mkxl b/tex/context/base/mkiv/pack-mrl.mkxl
index 2c3a2f174..7b09b2406 100644
--- a/tex/context/base/mkiv/pack-mrl.mkxl
+++ b/tex/context/base/mkiv/pack-mrl.mkxl
@@ -52,18 +52,18 @@
    \edef\p_depth {\directblackrulesparameter\c!depth }%
    \ifx\p_height\v!max
      \setstrut
-   \else\ifx\p_depth\v!max
+   \orelse\ifx\p_depth\v!max
      \setstrut
-   \fi\fi
+   \fi
    \useblackrulesstyleandcolor\c!style\c!color
    \ifcsname\??blackruletype\directblackrulesparameter\c!type\endcsname
      \lastnamedcs
    \else
      \vrule
    \fi
-   \ifx\p_width \v!max\s!width \emwidth\else\ifx\p_width \empty\else\s!width \p_width \fi\fi
-   \ifx\p_height\v!max\s!height\strutht\else\ifx\p_height\empty\else\s!height\p_height\fi\fi
-   \ifx\p_depth \v!max\s!depth \strutdp\else\ifx\p_depth \empty\else\s!depth \p_depth \fi\fi
+   \ifx\p_width \v!max\s!width \emwidth\orelse\ifx\p_width \empty\else\s!width \p_width \fi
+   \ifx\p_height\v!max\s!height\strutht\orelse\ifx\p_height\empty\else\s!height\p_height\fi
+   \ifx\p_depth \v!max\s!depth \strutdp\orelse\ifx\p_depth \empty\else\s!depth \p_depth \fi
    \egroup}
 
 \setupblackrules
@@ -283,11 +283,11 @@
    \linewidth\dimexpr\directthinrulesparameter\c!rulethickness/\plustwo\relax
    \ifzeropt\linewidth
      \c_pack_thinrules_type\zerocount
-   \else\ifx\p_frame\v!on
+   \orelse\ifx\p_frame\v!on
      \c_pack_thinrules_type\expandnamespaceparameter\??thinrulealternatives\directthinrulesparameter\c!alternative\v!b\relax
    \else
      \c_pack_thinrules_type\zerocount
-   \fi\fi
+   \fi
    \ifnum\c_pack_thinrules_type=\plusone
      \ifx\p_height\v!max
        \scratchheight\strutht
@@ -755,11 +755,11 @@
      \ifx\p_width\v!fit
        \scratchdistance\zeropoint
        \hbox
-     \else\ifx\p_width\v!broad
+     \orelse\ifx\p_width\v!broad
        \hbox
      \else
        \hbox to \directfillinrulesparameter\c!width
-     \fi\fi
+     \fi
      \bgroup
        \usefillinrulesstyleandcolor\c!style\c!color
        \strut
diff --git a/tex/context/base/mkiv/spac-hor.mkxl b/tex/context/base/mkiv/spac-hor.mkxl
index c9ac0a992..c3bcccf93 100644
--- a/tex/context/base/mkiv/spac-hor.mkxl
+++ b/tex/context/base/mkiv/spac-hor.mkxl
@@ -120,22 +120,22 @@
 % \def\spac_indentation_apply_step_one#1%
 %   {\ifcsname\??indentingpreset#1\endcsname
 %      \spac_indentation_apply_step_one_nested{#1}%
-%    \else\ifcsname\??indentingmethod#1\endcsname
+%    \orelse\ifcsname\??indentingmethod#1\endcsname
 %      % case two
 %    \else
 %      \edef\v_spac_indentation_current{#1}% single entry in list
 %      \let\normalindentation\v_spac_indentation_current
 %      \spac_indentation_setup_size
-%    \fi\fi}
+%    \fi}
 %
 % \def\spac_indentation_apply_step_two#1%
 %   {\ifcsname\??indentingpreset#1\endcsname
 %      \spac_indentation_apply_step_two_nested{#1}%
-%    \else\ifcsname\??indentingmethod#1\endcsname
+%    \orelse\ifcsname\??indentingmethod#1\endcsname
 %      \lastnamedcs
 %    \else
 %      % case one
-%    \fi\fi}
+%    \fi}
 
 \def\spac_indentation_apply_step_one_nested
   {\expandafter\processcommacommand\expandafter[\lastnamedcs]\spac_indentation_apply_step_one}
@@ -146,22 +146,22 @@
 \def\spac_indentation_apply_step_one#1%
   {\ifcsname\??indentingpreset#1\endcsname
      \spac_indentation_apply_step_one_nested
-   \else\ifcsname\??indentingmethod#1\endcsname
+   \orelse\ifcsname\??indentingmethod#1\endcsname
      % case two
    \else
      \edef\v_spac_indentation_current{#1}% single entry in list
      \let\normalindentation\v_spac_indentation_current
      \spac_indentation_setup_size
-   \fi\fi}
+   \fi}
 
 \def\spac_indentation_apply_step_two#1%
   {\ifcsname\??indentingpreset#1\endcsname
      \spac_indentation_apply_step_two_nested
-   \else\ifcsname\??indentingmethod#1\endcsname
+   \orelse\ifcsname\??indentingmethod#1\endcsname
      \lastnamedcs
    \else
      % case one
-   \fi\fi}
+   \fi}
 
 \unexpanded\def\indenting % kind of obsolete
   {\doifelsenextoptionalcs\spac_indentation_setup_options\relax}
@@ -1045,11 +1045,11 @@
      \hskip % always a skip even when 0pt
        \ifsecondargument
          \hspaceamount{#1}{#2}%
-       \else\iffirstargument
+       \orelse\iffirstargument
          \hspaceamount\empty{#1}%
        \else
          \hspaceamount\empty\s!default
-       \fi\fi
+       \fi
      \expandafter\ignorespaces
    \fi}
 
@@ -1271,12 +1271,12 @@
 \def\spac_ignore_spaces_body
   {\ifzeropt\lastskip
      \exitloop
-   \else\ifdim\lastskip=\s_spac_ignore_spaces
+   \orelse\ifdim\lastskip=\s_spac_ignore_spaces
      \unskip
      \exitloop
    \else
      \unskip
-   \fi\fi}
+   \fi}
 
 %D \macros
 %D   {obeyfollowingtoken}
diff --git a/tex/context/base/mkiv/status-files.pdf b/tex/context/base/mkiv/status-files.pdf
index 622a6ffe8..68817dcd6 100644
--- a/tex/context/base/mkiv/status-files.pdf
+++ b/tex/context/base/mkiv/status-files.pdf
diff --git a/tex/context/base/mkiv/status-lua.pdf b/tex/context/base/mkiv/status-lua.pdf
index a23a64b94..4d7f938ca 100644
--- a/tex/context/base/mkiv/status-lua.pdf
+++ b/tex/context/base/mkiv/status-lua.pdf
diff --git a/tex/context/base/mkiv/strc-itm.mklx b/tex/context/base/mkiv/strc-itm.mklx
index 46fb90c9e..51f2cd4b6 100644
--- a/tex/context/base/mkiv/strc-itm.mklx
+++ b/tex/context/base/mkiv/strc-itm.mklx
@@ -914,12 +914,12 @@
      \letitemgroupparameter\c!inbetween\empty
    \fi
    \ifconditional\c_strc_itemgroups_columns
-     \ifinsidecolumns\else\ifcase\c_strc_itemgroups_column_depth
+     \ifinsidecolumns\orelse\ifcase\c_strc_itemgroups_column_depth
        \global\c_strc_itemgroups_column_depth\c_strc_itemgroups_nesting % global ?
        \strc_itemgroups_before_command
        \strc_itemgroups_tag_start_group
        \strc_itemgroups_start_columns
-     \fi\fi
+     \fi
    \fi
    \ifconditional\c_strc_itemgroups_fitting
      \ifdim\d_strc_itemgroups_max_width>\zeropoint
@@ -1494,9 +1494,9 @@
    \strc_itemgroups_make_destination_box
    \ifconditional\c_strc_itemgroups_fitting
      \strc_itemgroups_make_fitting_box
-   \else\ifdim\d_strc_itemgroups_asked_width>\zeropoint
+   \orelse\ifdim\d_strc_itemgroups_asked_width>\zeropoint
      \strc_itemgroups_make_aligned_box
-   \fi\fi
+   \fi
    \let\m_strc_itemgroups_destination\empty
    \ht\b_strc_itemgroups\strutheight % just in case a symbols is not yet available in
    \dp\b_strc_itemgroups\strutdepth  % the current run (more a mkii mp side artifact)
diff --git a/tex/context/base/mkiv/supp-box.lmt b/tex/context/base/mkiv/supp-box.lmt
index 96e0330e5..98bf828b5 100644
--- a/tex/context/base/mkiv/supp-box.lmt
+++ b/tex/context/base/mkiv/supp-box.lmt
@@ -855,8 +855,7 @@ implement {
 implement {
     name      = "widthuptohere",
     public    = true,
-    protected = true,
-    value     = true,
+    usage     = "value",
     actions   = function()
         local n = texgetnest()
         local w = 0
@@ -1195,30 +1194,27 @@ do
 
     local function define_one(name,action)
         implement {
-            name      = name,
-            public    = true,
-         -- protected = true,
-            value     = true,
-            actions   = function(what) return boxline(action,what) end,
+            name    = name,
+            public  = true,
+            usage   = "value",
+            actions = function(what) return boxline(action,what) end,
         }
     end
 
     local function define_two(name,action)
         implement {
-            name      = name,
-            public    = true,
-         -- protected = true,
-            value     = true,
-            actions   = function(what) return boxrange(action,what) end,
+            name    = name,
+            public  = true,
+            usage   = "value",
+            actions = function(what) return boxrange(action,what) end,
         }
     end
 
     implement {
-        name      = "boxlines",
-        public    = true,
-     -- protected = true,
-        value     = true,
-        actions   = boxlinecount,
+        name    = "boxlines",
+        public  = true,
+        usage   = "value",
+        actions = boxlinecount,
     }
 
     define_one("boxline",     "get")
diff --git a/tex/context/base/mkiv/supp-box.mkxl b/tex/context/base/mkiv/supp-box.mkxl
index c5afa1f8f..d3220052e 100644
--- a/tex/context/base/mkiv/supp-box.mkxl
+++ b/tex/context/base/mkiv/supp-box.mkxl
@@ -621,15 +621,15 @@
 %D   {\def\syst_boxes_with_next_box{#1}%
 %D    \ifx#2\hbox
 %D      \afterassignment\syst_boxes_with_next_box_indeed
-%D    \else\ifx#2\vbox
+%D    \orelse\ifx#2\vbox
 %D      \afterassignment\syst_boxes_with_next_box_indeed
-%D    \else\ifx#2\vtop
+%D    \orelse\ifx#2\vtop
 %D      \afterassignment\syst_boxes_with_next_box_indeed
-%D    \else\ifx#2\normalvcenter
+%D    \orelse\ifx#2\normalvcenter
 %D      \afterassignment\syst_boxes_with_next_box_indeed
 %D    \else
 %D      \afterassignment\syst_boxes_with_next_box
-%D    \fi\fi\fi\fi
+%D    \fi
 %D    \setbox\nextbox#2}
 %D \stoptyping
 %D
diff --git a/tex/context/base/mkiv/syst-aux.mkxl b/tex/context/base/mkiv/syst-aux.mkxl
index 1951e166f..0c5ff3f76 100644
--- a/tex/context/base/mkiv/syst-aux.mkxl
+++ b/tex/context/base/mkiv/syst-aux.mkxl
@@ -3290,6 +3290,32 @@
    \globalpopmacro\recurseaction
    \global\advance\outerrecurse\minusone}
 
+%D This is some \LMTX\ experiment:
+%D
+%D Think of:
+%D
+%D \starttyping
+%D \domatch {(\letterpercent w+) *(\letterpercent w*)} {aa bb cc dd} {
+%D     [
+%D     \domatch{(\letterpercent w)(\letterpercent w)} {#1} {(##1 ##2)}
+%D     \domatch{(\letterpercent w)(\letterpercent w)} {#2} {(##1 ##2)}
+%D     ]
+%D }
+%D
+%D and:
+%D
+%D \stoptyping
+%D
+%D \starttyping
+%D \def\MyMacro#1{(#1)} \ctxluamatch \MyMacro {(.)} {abcd}
+%D \stoptyping
+
+\protected\def\doloopovermatch#1#2#3%
+  {\pushmacro\matchloopcommand
+   \def\matchloopcommand##1##2##3##4##5##6##7##8##9{#3}%
+   \ctxluamatch\matchloopcommand{#1}{#2}%
+   \popmacro\matchloopcommand}
+
 %D \macros
 %D   {newevery,everyline,EveryLine,EveryPar}
 %D
@@ -3463,7 +3489,7 @@
      \assignmentfalse
    \fi}
 
-\protected\def\validassignment  #1{\ifhastok={#1}}
+\protected\def\validassignment  #1{\ifhastok={#1}} % can become: {\ifhastok=} as we enforce {}
 \protected\def\novalidassignment#1{\ifnum\ifhastok={#1}\zerocount\else\plusone\fi=\plusone}
 
 %D In \ETEX\ we can use \type {\detokenize} and gain some speed, but in general far
@@ -5367,7 +5393,7 @@
 %D first version was:
 %D
 %D \starttyping
-%D \def\dontleavehmode{\ifhmode\else\ifmmode\else$ $\fi\fi}
+%D \def\dontleavehmode{\ifhmode\orelse\ifmmode\else$ $\fi}
 %D \stoptyping
 %D
 %D Next, Taco came with a better alternative (using mathsurround):
diff --git a/tex/context/base/mkiv/syst-con.lua b/tex/context/base/mkiv/syst-con.lua
index 1af2d9a5d..6e998bdfd 100644
--- a/tex/context/base/mkiv/syst-con.lua
+++ b/tex/context/base/mkiv/syst-con.lua
@@ -30,12 +30,18 @@ function converters.octstringtonumber(n) tonumber(n, 8) end
 
 function converters.rawcharacter     (n) utfchar(0x110000+n) end
 
-local lchexnumber  = formatters["%x"]
-local uchexnumber  = formatters["%X"]
-local lchexnumbers = formatters["%02x"]
-local uchexnumbers = formatters["%02X"]
-local octnumber    = formatters["%03o"]
-local nicenumber   = formatters["%0.6F"]
+local f_lchexnumber  = formatters["%x"]
+local f_uchexnumber  = formatters["%X"]
+local f_lchexnumbers = formatters["%02x"]
+local f_uchexnumbers = formatters["%02X"]
+local f_octnumber    = formatters["%03o"]
+local   nicenumber   = formatters["%0.6F"]
+
+local lchexnumber  = function(n) if n < 0 then n = 0x100000000 + n end return f_lchexnumber (n) end
+local uchexnumber  = function(n) if n < 0 then n = 0x100000000 + n end return f_uchexnumber (n) end
+local lchexnumbers = function(n) if n < 0 then n = 0x100000000 + n end return f_lchexnumbers(n) end
+local uchexnumbers = function(n) if n < 0 then n = 0x100000000 + n end return f_uchexnumbers(n) end
+local octnumber    = function(n) if n < 0 then n = 0x100000000 + n end return f_octnumber   (n) end
 
 converters.lchexnumber  = lchexnumber
 converters.uchexnumber  = uchexnumber
diff --git a/tex/context/base/mkiv/syst-ini.mkxl b/tex/context/base/mkiv/syst-ini.mkxl
index 46daa66ca..c8c16b773 100644
--- a/tex/context/base/mkiv/syst-ini.mkxl
+++ b/tex/context/base/mkiv/syst-ini.mkxl
@@ -325,11 +325,11 @@
 \def\syst_basics_allocate#1#2#3#4#5% last class method max name
   {\ifx#5\undefined
      \expandafter\syst_basics_allocate_yes
-   \else\ifx#5\relax
-     \expandafter\expandafter\expandafter\syst_basics_allocate_yes
+   \orelse\ifx#5\relax
+     \expandafter\syst_basics_allocate_yes
    \else
-     \expandafter\expandafter\expandafter\syst_basics_allocate_nop
-   \fi\fi
+     \expandafter\syst_basics_allocate_nop
+   \fi
    #1#2#3#4#5}
 
 %D Since the number of chars exceed 256 now, we can use \type {\chardef} instead of
diff --git a/tex/context/base/mkiv/syst-lua.lmt b/tex/context/base/mkiv/syst-lua.lmt
index effba14d9..d74b27689 100644
--- a/tex/context/base/mkiv/syst-lua.lmt
+++ b/tex/context/base/mkiv/syst-lua.lmt
@@ -337,8 +337,7 @@ do
     implement {
         name      = "openin",
         public    = true,
-     -- protected = true,
-        value     = true,
+        usage     = "value",
         actions   = function()
             local n = scaninteger()
                       scankeyword("=")
@@ -359,8 +358,7 @@ do
     implement {
         name      = "closein",
         public    = true,
-     -- protected = true,
-        value     = true,
+        usage     = "value",
         actions   = function()
             local n = scaninteger()
             local c = channels[n]
@@ -374,8 +372,7 @@ do
     implement {
         name      = "read",
         public    = true,
-     -- protected = true,
-        value     = true,
+        usage     = "value",
         actions   = function(prefix)
             local n = scaninteger()
                       scankeyword("to")
@@ -393,8 +390,7 @@ do
     implement {
         name      = "readline",
         public    = true,
-     -- protected = true,
-        value     = true,
+        usage     = "value",
         actions   = function(prefix)
             local n = scaninteger()
                       scankeyword("to")
@@ -409,15 +405,10 @@ do
         end,
     }
 
- -- callback.register("if_end_of_file", function(n)
- --     return not channels[n]
- -- end)
-
     implement {
         name      = "ifeof",
         public    = true,
-     -- protected = true,
-        condition = true,
+        usage     = "condition",
         actions   = function(prefix)
             local n = scaninteger()
             return tokens.values.boolean, not channels[n]
diff --git a/tex/context/base/mkiv/tabl-ntb.mkxl b/tex/context/base/mkiv/tabl-ntb.mkxl
index ada655fa9..680429822 100644
--- a/tex/context/base/mkiv/tabl-ntb.mkxl
+++ b/tex/context/base/mkiv/tabl-ntb.mkxl
@@ -132,11 +132,11 @@
 %      \par
 %      \ifhmode
 %         % \removeunwantedspaces
-%      \else\ifdim\prevdepth<\zeropoint % =-1000pt ?
+%      \orelse\ifdim\prevdepth<\zeropoint % =-1000pt ?
 %        \vskip-\strutdp
 %      \else
 %        \removebottomthings
-%      \fi\fi
+%      \fi
 %    \fi}
 
 \newcount\c_tabl_ntb_row
diff --git a/tex/context/base/mkiv/tabl-tbl.mkxl b/tex/context/base/mkiv/tabl-tbl.mkxl
index 8bed65a9f..4b2f31721 100644
--- a/tex/context/base/mkiv/tabl-tbl.mkxl
+++ b/tex/context/base/mkiv/tabl-tbl.mkxl
@@ -780,7 +780,7 @@
 
 % \def\tabl_tabulate_set_color_span#1#2%
 %   {\xdef\m_tabl_tabulate_color{#2}%
-%    \global\c_tabl_tabulate_colorspan\if#1L\plusone\else\if#1M\plustwo\else\if#1R\plusthree\else\zerocount\fi\fi\fi\relax
+%    \global\c_tabl_tabulate_colorspan\if#1L\plusone\orelse\if#1M\plustwo\orelse\if#1R\plusthree\else\zerocount\fi\relax
 %    \tabl_tabulate_set_preamble}
 
 \installcorenamespace{tabulatecolorspec}
@@ -2188,9 +2188,9 @@
 %     %\ifcase#1\or % todo: check what this does
 %        \ifnum\noftabulatelines=\zerocount
 %          \glet\dotabulateautoline\donothing
-%        \else\ifnum\noftabulatelines=\totalnoftabulatelines
+%        \orelse\ifnum\noftabulatelines=\totalnoftabulatelines
 %          \glet\dotabulateautoline\donothing
-%        \fi\fi
+%        \fi
 %     %\fi
 %      \dotabulatenobreak
 %    \stoptabulatenoalign
diff --git a/tex/context/base/mkiv/toks-aux.lmt b/tex/context/base/mkiv/toks-aux.lmt
index d46a5872a..9c392f006 100644
--- a/tex/context/base/mkiv/toks-aux.lmt
+++ b/tex/context/base/mkiv/toks-aux.lmt
@@ -85,24 +85,32 @@ if CONTEXTLMTXMODE > 0 then
         end
     }
 
-    -- for the moment here, will move to initex only (also see node-ini.lua) :
+    -- For the moment here, will move to initex only (also see node-ini.lua); we need
+    -- to actually store these.
+
+    local groupcodes       = { }
+    local hyphenationcodes = { }
+
+    for k, v in next, tex.getgroupvalues() do
+        groupcodes[k] = gsub(v,"_","")
+    end
+    for k, v in next, tex.gethyphenationvalues() do
+        hyphenationcodes[k] = gsub(v,"_","")
+    end
 
     if environment.initex then
 
         local texchardef = tex.chardef
-        local groupcodes = { }
 
-        for k, v in next, tex.getgroupvalues() do
-            groupcodes[k] = gsub(v,"_","")
-        end
+        for k, v in next, groupcodes       do texchardef(v .. "groupcode",          k) end
+        for k, v in next, hyphenationcodes do texchardef(v .. "hyphenationmodecode",k) end
 
-        groupcodes     = utilities.storage.allocate(table.swapped(groupcodes,groupcodes))
-        tex.groupcodes = groupcodes
+    end
 
-        for i=0,#groupcodes do
-            texchardef(groupcodes[i] .. "groupcode",i)
-        end
+    groupcodes           = utilities.storage.allocate(table.swapped(groupcodes,      groupcodes))
+    hyphenationcodes     = utilities.storage.allocate(table.swapped(hyphenationcodes,hyphenationcodescodes))
 
-    end
+    tex.groupcodes       = groupcodes
+    tex.hyphenationcodes = hyphenationcodes
 
 end
diff --git a/tex/context/base/mkiv/toks-scn.lua b/tex/context/base/mkiv/toks-scn.lua
index b6f4d78d3..abf39a319 100644
--- a/tex/context/base/mkiv/toks-scn.lua
+++ b/tex/context/base/mkiv/toks-scn.lua
@@ -478,7 +478,7 @@ function tokens.compile(specification)
             return scanners[ti]
         end
     elseif #t == 0 then
-        if specification.value then
+        if specification.usage == "value" then
             code = "b"
             args = "_,b"
         else
diff --git a/tex/context/base/mkiv/trac-log.lua b/tex/context/base/mkiv/trac-log.lua
index 142d8baa3..4917c0ec8 100644
--- a/tex/context/base/mkiv/trac-log.lua
+++ b/tex/context/base/mkiv/trac-log.lua
@@ -1035,7 +1035,7 @@ do
     local texerror   = tex and tex.error or print
     local formatters = string.formatters
 
-    function logs.texerrormessage(...) -- for the moment we put this function here
+    function logs.texerrormessage(fmt,first,...) -- for the moment we put this function here
         texerror(first and formatters[fmt](first,...) or fmt)
     end
 
diff --git a/tex/context/base/mkiv/util-prs.lua b/tex/context/base/mkiv/util-prs.lua
index 8915c3e9e..57ac2b58e 100644
--- a/tex/context/base/mkiv/util-prs.lua
+++ b/tex/context/base/mkiv/util-prs.lua
@@ -373,7 +373,9 @@ hashes.settings_to_set =  table.setmetatableindex(function(t,k) -- experiment, n
     return v
 end)
 
-getmetatable(hashes.settings_to_set).__mode = "kv" -- could be an option (maybe sharing makes sense)
+-- as we use a next, we are not sure when the gc kicks in
+--
+-- getmetatable(hashes.settings_to_set).__mode = "kv" -- could be an option (maybe sharing makes sense)
 
 function parsers.simple_hash_to_string(h, separator)
     local t  = { }
diff --git a/tex/generic/context/luatex/luatex-fonts-merged.lua b/tex/generic/context/luatex/luatex-fonts-merged.lua
index 0f858f950..627d8b5f3 100644
--- a/tex/generic/context/luatex/luatex-fonts-merged.lua
+++ b/tex/generic/context/luatex/luatex-fonts-merged.lua
@@ -1,6 +1,6 @@
 -- merged file : c:/data/develop/context/sources/luatex-fonts-merged.lua
 -- parent file : c:/data/develop/context/sources/luatex-fonts.lua
--- merge date  : 2020-08-09 22:00
+-- merge date  : 2020-08-11 15:56
 
 do -- begin closure to overcome local limits and interference