beta 2012.11.27 15:54

19 files changed, 251 insertions, 49 deletions

diff --git a/context/data/scite/lexers/data/scite-context-data-metapost.lua b/context/data/scite/lexers/data/scite-context-data-metapost.lua
index d3c199089..df97c0a26 100644
--- a/context/data/scite/lexers/data/scite-context-data-metapost.lua
+++ b/context/data/scite/lexers/data/scite-context-data-metapost.lua
@@ -1,7 +1,7 @@
 return {
  ["commands"]={ "beginfig", "endfig", "rotatedaround", "reflectedabout", "arrowhead", "currentpen", "currentpicture", "cuttings", "defaultfont", "extra_beginfig", "extra_endfig", "ditto", "EOF", "down", "evenly", "fullcircle", "halfcircle", "identity", "in", "left", "origin", "pensquare", "quartercircle", "right", "unitsquare", "up", "withdots", "abs", "bbox", "ceiling", "center", "cutafter", "cutbefore", "dir", "directionpoint", "div", "dotprod", "intersectionpoint", "inverse", "mod", "round", "unitvector", "whatever", "cutdraw", "draw", "drawarrow", "drawdblarrow", "fill", "filldraw", "drawdot", "loggingall", "interact", "tracingall", "tracingnone", "pickup", "undraw", "unfill", "unfilldraw", "buildcycle", "dashpattern", "decr", "dotlabel", "dotlabels", "drawoptions", "incr", "label", "labels", "max", "min", "thelabel", "z", "beginchar", "blacker", "capsule_end", "change_width", "define_blacker_pixels", "define_corrected_pixels", "define_good_x_pixels", "define_good_y_pixels", "define_horizontal_corrected_pixels", "define_pixels", "define_whole_blacker_pixels", "define_whole_pixels", "define_whole_vertical_blacker_pixels", "define_whole_vertical_pixels", "endchar", "extra_beginchar", "extra_endchar", "extra_setup", "font_coding_scheme", "clearxy", "clearit", "clearpen", "shipit", "font_extra_space", "exitunless", "relax", "hide", "gobble", "gobbled", "stop", "blankpicture", "counterclockwise", "tensepath", "takepower", "direction", "softjoin", "makelabel", "rotatedabout", "flex", "superellipse", "erase", "image", "nullpen", "savepen", "clearpen", "penpos", "penlabels", "range", "numtok", "thru", "z", "laboff", "bye", "red", "green", "blue", "cyan", "magenta", "yellow", "black", "white", "background", "graypart", "graycolor", "mm", "pt", "dd", "bp", "cm", "pc", "cc", "in" },
  ["internals"]={ "mitered", "rounded", "beveled", "butt", "squared", "eps", "epsilon", "infinity", "bboxmargin", "ahlength", "ahangle", "labeloffset", "dotlabeldiam", "defaultpen", "defaultscale", "join_radius", "pen_lft", "pen_rt", "pen_top", "pen_bot" },
- ["primitives"]={ "charcode", "day", "linecap", "linejoin", "miterlimit", "month", "pausing", "prologues", "showstopping", "time", "tracingcapsules", "tracingchoices", "mpprocset", "tracingcommands", "tracingequations", "tracinglostchars", "tracingmacros", "tracingonline", "tracingoutput", "tracingrestores", "tracingspecs", "tracingstats", "tracingtitles", "truecorners", "warningcheck", "year", "false", "nullpicture", "pencircle", "true", "and", "angle", "arclength", "arctime", "ASCII", "boolean", "bot", "char", "color", "cosd", "cycle", "decimal", "directiontime", "floor", "fontsize", "hex", "infont", "intersectiontimes", "known", "length", "llcorner", "lrcorner", "makepath", "makepen", "mexp", "mlog", "normaldeviate", "not", "numeric", "oct", "odd", "or", "path", "pair", "pen", "penoffset", "picture", "point", "postcontrol", "precontrol", "reverse", "rotated", "scaled", "shifted", "sind", "slanted", "sqrt", "str", "string", "subpath", "substring", "transform", "transformed", "ulcorner", "uniformdeviate", "unknown", "urcorner", "xpart", "xscaled", "xxpart", "xypart", "ypart", "yscaled", "yxpart", "yypart", "zscaled", "addto", "clip", "input", "interim", "let", "newinternal", "save", "setbounds", "shipout", "show", "showdependencies", "showtoken", "showvariable", "special", "begingroup", "endgroup", "of", "curl", "tension", "and", "controls", "interpath", "on", "off", "def", "vardef", "enddef", "expr", "suffix", "text", "primary", "secondary", "tertiary", "primarydef", "secondarydef", "tertiarydef", "randomseed", "also", "contour", "doublepath", "withcolor", "withpen", "dashed", "if", "else", "elseif", "fi", "for", "endfor", "forever", "exitif", "forsuffixes", "downto", "upto", "step", "until", "charlist", "extensible", "fontdimen", "headerbyte", "kern", "ligtable", "boundarychar", "chardp", "charext", "charht", "charic", "charwd", "designsize", "fontmaking", "charexists", "cullit", "currenttransform", "gfcorners", "grayfont", "hround", "imagerules", "lowres_fix", "nodisplays", "notransforms", "openit", "displaying", "currentwindow", "screen_rows", "screen_cols", "pixels_per_inch", "cull", "display", "openwindow", "numspecial", "totalweight", "autorounding", "fillin", "proofing", "tracingpens", "xoffset", "chardx", "granularity", "smoothing", "turningcheck", "yoffset", "chardy", "hppp", "tracingedges", "vppp", "extra_beginfig", "extra_endfig", "mpxbreak", "endinput", "message", "delimiters", "turningnumber", "errmessage", "readstring", "scantokens", "end", "outer", "inner", "write", "to", "readfrom", "withprescript", "withpostscript", "top", "bot", "lft", "rt", "ulft", "urt", "llft", "lrt", "redpart", "greenpart", "bluepart", "cyanpart", "magentapart", "yellowpart", "blackpart", "greypart", "rgbcolor", "cmykcolor", "greycolor", "graycolor", "colormodel", "graypart", "expandafter" },
+ ["primitives"]={ "charcode", "day", "linecap", "linejoin", "miterlimit", "month", "pausing", "prologues", "showstopping", "time", "tracingcapsules", "tracingchoices", "mpprocset", "tracingcommands", "tracingequations", "tracinglostchars", "tracingmacros", "tracingonline", "tracingoutput", "tracingrestores", "tracingspecs", "tracingstats", "tracingtitles", "truecorners", "warningcheck", "year", "false", "nullpicture", "pencircle", "true", "and", "angle", "arclength", "arctime", "ASCII", "boolean", "bot", "char", "color", "cosd", "cycle", "decimal", "directiontime", "floor", "fontsize", "hex", "infont", "intersectiontimes", "known", "length", "llcorner", "lrcorner", "makepath", "makepen", "mexp", "mlog", "normaldeviate", "not", "numeric", "oct", "odd", "or", "path", "pair", "pen", "penoffset", "picture", "point", "postcontrol", "precontrol", "reverse", "rotated", "scaled", "shifted", "sind", "slanted", "sqrt", "str", "string", "subpath", "substring", "transform", "transformed", "ulcorner", "uniformdeviate", "unknown", "urcorner", "xpart", "xscaled", "xxpart", "xypart", "ypart", "yscaled", "yxpart", "yypart", "zscaled", "addto", "clip", "input", "interim", "let", "newinternal", "save", "setbounds", "shipout", "show", "showdependencies", "showtoken", "showvariable", "special", "begingroup", "endgroup", "of", "curl", "tension", "and", "controls", "interpath", "on", "off", "def", "vardef", "enddef", "expr", "suffix", "text", "primary", "secondary", "tertiary", "primarydef", "secondarydef", "tertiarydef", "randomseed", "also", "contour", "doublepath", "withcolor", "withpen", "dashed", "if", "else", "elseif", "fi", "for", "endfor", "forever", "exitif", "within", "forsuffixes", "downto", "upto", "step", "until", "charlist", "extensible", "fontdimen", "headerbyte", "kern", "ligtable", "boundarychar", "chardp", "charext", "charht", "charic", "charwd", "designsize", "fontmaking", "charexists", "cullit", "currenttransform", "gfcorners", "grayfont", "hround", "imagerules", "lowres_fix", "nodisplays", "notransforms", "openit", "displaying", "currentwindow", "screen_rows", "screen_cols", "pixels_per_inch", "cull", "display", "openwindow", "numspecial", "totalweight", "autorounding", "fillin", "proofing", "tracingpens", "xoffset", "chardx", "granularity", "smoothing", "turningcheck", "yoffset", "chardy", "hppp", "tracingedges", "vppp", "extra_beginfig", "extra_endfig", "mpxbreak", "endinput", "message", "delimiters", "turningnumber", "errmessage", "readstring", "scantokens", "end", "outer", "inner", "write", "to", "readfrom", "withprescript", "withpostscript", "top", "bot", "lft", "rt", "ulft", "urt", "llft", "lrt", "redpart", "greenpart", "bluepart", "cyanpart", "magentapart", "yellowpart", "blackpart", "greypart", "rgbcolor", "cmykcolor", "greycolor", "graycolor", "colormodel", "graypart", "dashpart", "penpart", "stroked", "filled", "textual", "clipped", "bounded", "expandafter" },
  ["shortcuts"]={ "..", "...", "--", "---", "&" },
  ["tex"]={ "btex", "etex", "verbatimtex" },
 }
\ No newline at end of file
diff --git a/context/data/scite/scite-context-data-metapost.properties b/context/data/scite/scite-context-data-metapost.properties
index d2027c956..cade4e8ce 100644
--- a/context/data/scite/scite-context-data-metapost.properties
+++ b/context/data/scite/scite-context-data-metapost.properties
@@ -28,26 +28,28 @@ suffix text primary secondary tertiary \
 primarydef secondarydef tertiarydef randomseed also \
 contour doublepath withcolor withpen dashed \
 if else elseif fi for \
-endfor forever exitif forsuffixes downto \
-upto step until charlist extensible \
-fontdimen headerbyte kern ligtable boundarychar \
-chardp charext charht charic charwd \
-designsize fontmaking charexists cullit currenttransform \
-gfcorners grayfont hround imagerules lowres_fix \
-nodisplays notransforms openit displaying currentwindow \
-screen_rows screen_cols pixels_per_inch cull display \
-openwindow numspecial totalweight autorounding fillin \
-proofing tracingpens xoffset chardx granularity \
-smoothing turningcheck yoffset chardy hppp \
-tracingedges vppp extra_beginfig extra_endfig mpxbreak \
-endinput message delimiters turningnumber errmessage \
-readstring scantokens end outer inner \
-write to readfrom withprescript withpostscript \
-top bot lft rt ulft \
-urt llft lrt redpart greenpart \
-bluepart cyanpart magentapart yellowpart blackpart \
-greypart rgbcolor cmykcolor greycolor graycolor \
-colormodel graypart expandafter 
+endfor forever exitif within forsuffixes \
+downto upto step until charlist \
+extensible fontdimen headerbyte kern ligtable \
+boundarychar chardp charext charht charic \
+charwd designsize fontmaking charexists cullit \
+currenttransform gfcorners grayfont hround imagerules \
+lowres_fix nodisplays notransforms openit displaying \
+currentwindow screen_rows screen_cols pixels_per_inch cull \
+display openwindow numspecial totalweight autorounding \
+fillin proofing tracingpens xoffset chardx \
+granularity smoothing turningcheck yoffset chardy \
+hppp tracingedges vppp extra_beginfig extra_endfig \
+mpxbreak endinput message delimiters turningnumber \
+errmessage readstring scantokens end outer \
+inner write to readfrom withprescript \
+withpostscript top bot lft rt \
+ulft urt llft lrt redpart \
+greenpart bluepart cyanpart magentapart yellowpart \
+blackpart greypart rgbcolor cmykcolor greycolor \
+graycolor colormodel graypart dashpart penpart \
+stroked filled textual clipped bounded \
+expandafter 
 
 keywordclass.metapost.commands=\
 beginfig endfig rotatedaround reflectedabout \
diff --git a/tex/context/base/cont-new.mkii b/tex/context/base/cont-new.mkii
index d5f90c684..05be6ccf4 100644
--- a/tex/context/base/cont-new.mkii
+++ b/tex/context/base/cont-new.mkii
@@ -11,7 +11,7 @@
 %C therefore copyrighted by \PRAGMA. See mreadme.pdf for
 %C details.
 
-\newcontextversion{2012.11.26 13:31}
+\newcontextversion{2012.11.27 15:54}
 
 %D This file is loaded at runtime, thereby providing an
 %D excellent place for hacks, patches, extensions and new
diff --git a/tex/context/base/cont-new.mkiv b/tex/context/base/cont-new.mkiv
index 10fba7f40..985372c08 100644
--- a/tex/context/base/cont-new.mkiv
+++ b/tex/context/base/cont-new.mkiv
@@ -11,7 +11,7 @@
 %C therefore copyrighted by \PRAGMA. See mreadme.pdf for
 %C details.
 
-\newcontextversion{2012.11.26 13:31}
+\newcontextversion{2012.11.27 15:54}
 
 %D This file is loaded at runtime, thereby providing an excellent place for
 %D hacks, patches, extensions and new features.
diff --git a/tex/context/base/context-version.pdf b/tex/context/base/context-version.pdf
index f8855c59a..42384dd98 100644
--- a/tex/context/base/context-version.pdf
+++ b/tex/context/base/context-version.pdf
diff --git a/tex/context/base/context-version.png b/tex/context/base/context-version.png
index db92e1e14..6224e84c5 100644
--- a/tex/context/base/context-version.png
+++ b/tex/context/base/context-version.png
diff --git a/tex/context/base/context.mkii b/tex/context/base/context.mkii
index a083e5911..80ca8f918 100644
--- a/tex/context/base/context.mkii
+++ b/tex/context/base/context.mkii
@@ -20,7 +20,7 @@
 %D your styles an modules.
 
 \edef\contextformat {\jobname}
-\edef\contextversion{2012.11.26 13:31}
+\edef\contextversion{2012.11.27 15:54}
 
 %D For those who want to use this:
 
diff --git a/tex/context/base/context.mkiv b/tex/context/base/context.mkiv
index afe46d69c..1ce05e9c1 100644
--- a/tex/context/base/context.mkiv
+++ b/tex/context/base/context.mkiv
@@ -25,7 +25,7 @@
 %D up and the dependencies are more consistent.
 
 \edef\contextformat {\jobname}
-\edef\contextversion{2012.11.26 13:31}
+\edef\contextversion{2012.11.27 15:54}
 
 %D For those who want to use this:
 
@@ -367,6 +367,7 @@
 \loadmarkfile{blob-ini} % not to be used, we only use a helper
 
 \loadmarkfile{trac-vis}
+\loadmarkfile{trac-jus}
 
 \loadmarkfile{typo-cln}
 \loadmarkfile{typo-spa}
diff --git a/tex/context/base/mlib-pps.lua b/tex/context/base/mlib-pps.lua
index 7821b3dbf..8d8db65ae 100644
--- a/tex/context/base/mlib-pps.lua
+++ b/tex/context/base/mlib-pps.lua
@@ -642,7 +642,7 @@ local scriptsplitter = Ct ( Ct (
     C((1-S("= "))^1) * S("= ")^1 * C((1-S("\n\r"))^0) * S("\n\r")^0
 )^0 )
 
-local function splitscript(script)
+local function splitprescript(script)
     local hash = lpegmatch(scriptsplitter,script)
     for i=#hash,1,-1 do
         local h = hash[i]
@@ -654,6 +654,20 @@ local function splitscript(script)
     return hash
 end
 
+-- -- not used:
+--
+-- local function splitpostscript(script)
+--     local hash = lpegmatch(scriptsplitter,script)
+--     for i=1,#hash do
+--         local h = hash[i]
+--         hash[h[1]] = h[2]
+--     end
+--     if trace_scripts then
+--         report_scripts(table.serialize(hash,"postscript"))
+--     end
+--     return hash
+-- end
+
 function metapost.pluginactions(what,t,flushfigure) -- before/after object, depending on what
     for i=1,#what do
         local wi = what[i]
@@ -681,7 +695,7 @@ end
 function metapost.analyzeplugins(object) -- each object (first pass)
     local prescript = object.prescript   -- specifications
     if prescript and #prescript > 0 then
-        return analyzer(object,splitscript(prescript))
+        return analyzer(object,splitprescript(prescript))
     end
 end
 
@@ -690,7 +704,7 @@ function metapost.processplugins(object) -- each object (second pass)
     if prescript and #prescript > 0 then
         local before = { }
         local after = { }
-        processor(object,splitscript(prescript),before,after)
+        processor(object,splitprescript(prescript),before,after)
         return #before > 0 and before, #after > 0 and after
     else
         local c = object.color
diff --git a/tex/context/base/mult-fun.lua b/tex/context/base/mult-fun.lua
index ab9c5d434..aa4ef64df 100644
--- a/tex/context/base/mult-fun.lua
+++ b/tex/context/base/mult-fun.lua
@@ -51,7 +51,8 @@ return {
         "set_linear_vector", "linear_shade", "define_linear_shade", "define_circular_linear_shade", "define_sampled_linear_shade",
         "set_circular_vector", "circular_shade", "define_circular_shade", "define_circular_linear_shade", "define_sampled_circular_shade",
         "space", "CRLF",
-        "grayscale", "greyscale", "withgray", "withgrey", "colorpart",
+        "grayscale", "greyscale", "withgray", "withgrey",
+        "colorpart",
         "readfile",
         "clearxy", "unitvector", "center", -- redefined
         "epsed", "anchored",
diff --git a/tex/context/base/mult-mps.lua b/tex/context/base/mult-mps.lua
index 2f2c41974..59411cd97 100644
--- a/tex/context/base/mult-mps.lua
+++ b/tex/context/base/mult-mps.lua
@@ -31,7 +31,7 @@ return {
         "def", "vardef", "enddef", "expr", "suffix", "text", "primary", "secondary",
         "tertiary", "primarydef", "secondarydef", "tertiarydef",
         "randomseed", "also", "contour", "doublepath",
-        "withcolor", "withpen", "dashed", "if", "else", "elseif", "fi", "for", "endfor", "forever", "exitif",
+        "withcolor", "withpen", "dashed", "if", "else", "elseif", "fi", "for", "endfor", "forever", "exitif", "within",
         "forsuffixes", "downto", "upto", "step", "until",
         "charlist", "extensible", "fontdimen", "headerbyte", "kern", "ligtable",
         "boundarychar", "chardp", "charext", "charht", "charic", "charwd", "designsize",
@@ -53,6 +53,9 @@ return {
         "redpart", "greenpart", "bluepart", "cyanpart", "magentapart", "yellowpart", "blackpart", "greypart",
         "rgbcolor", "cmykcolor", "greycolor", "graycolor",
         "colormodel",  "graypart",
+        "dashpart", "penpart",
+--         "colorpart",
+        "stroked", "filled", "textual", "clipped", "bounded",
         "expandafter",
     },
     commands = {
diff --git a/tex/context/base/status-files.pdf b/tex/context/base/status-files.pdf
index ddafd2831..80d982a9e 100644
--- a/tex/context/base/status-files.pdf
+++ b/tex/context/base/status-files.pdf
diff --git a/tex/context/base/status-lua.pdf b/tex/context/base/status-lua.pdf
index fac4e063e..f060b4e6f 100644
--- a/tex/context/base/status-lua.pdf
+++ b/tex/context/base/status-lua.pdf
diff --git a/tex/context/base/status-mkiv.lua b/tex/context/base/status-mkiv.lua
index f9e28c879..1bcdd3278 100644
--- a/tex/context/base/status-mkiv.lua
+++ b/tex/context/base/status-mkiv.lua
@@ -1498,6 +1498,12 @@ return {
    status   = "okay",
   },
   {
+   category = "mkiv",
+   filename = "trac-jus",
+   loading  = "always",
+   status   = "okay",
+  },
+  {
    category = "mkvi",
    filename = "trac-vis",
    loading  = "always",
@@ -4524,6 +4530,12 @@ return {
   },
   {
    category = "lua",
+   filename = "trac-jus",
+   loading  = "trac-jus",
+   status   = "okay",
+  },
+  {
+   category = "lua",
    filename = "type-ini",
    loading  = "type-ini",
    status   = "okay",
diff --git a/tex/context/base/task-ini.lua b/tex/context/base/task-ini.lua
index 37e01996d..8bbcea599 100644
--- a/tex/context/base/task-ini.lua
+++ b/tex/context/base/task-ini.lua
@@ -99,6 +99,11 @@ appendaction("mvlbuilders",  "normalizers", "builders.vspacing.pagehandler")
 
 appendaction("vboxbuilders", "normalizers", "builders.vspacing.vboxhandler")                     --
 
+-- experimental too
+
+appendaction("mvlbuilders","normalizers","typesetters.checkers.handler")
+appendaction("vboxbuilders","normalizers","typesetters.checkers.handler")
+
 -- speedup: only kick in when used
 
 disableaction("processors",  "fonts.collections.process")
@@ -148,6 +153,9 @@ disableaction("finalizers",  "builders.paragraphs.tag")
 disableaction("math",        "noads.handlers.tags")
 disableaction("math",        "noads.handlers.italics")
 
+disableaction("mvlbuilders", "typesetters.checkers.handler")
+disableaction("vboxbuilders","typesetters.checkers.handler")
+
 freezecallbacks("find_.*_file", "find file using resolver")
 freezecallbacks("read_.*_file", "read file at once")
 freezecallbacks("open_.*_file", "open file for reading")
diff --git a/tex/context/base/trac-jus.lua b/tex/context/base/trac-jus.lua
new file mode 100644
index 000000000..412ede90e
--- /dev/null
+++ b/tex/context/base/trac-jus.lua
@@ -0,0 +1,138 @@
+if not modules then modules = { } end modules ['trac-jus'] = {
+    version   = 1.001,
+    comment   = "companion to trac-jus.mkiv",
+    author    = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
+    copyright = "PRAGMA ADE / ConTeXt Development Team",
+    license   = "see context related readme files"
+}
+
+local checkers            = typesetters.checkers or { }
+typesetters.checkers      = checkers
+
+----- report_justification = logs.reporter("visualize","justification")
+
+local a_alignstate        = attributes.private("alignstate")
+local a_justification     = attributes.private("justification")
+
+local tracers             = nodes.tracers
+local setcolor            = tracers.colors.set
+local settransparency     = tracers.transparencies.set
+
+local new_rule            = nodes.pool.rule
+local new_glue            = nodes.pool.glue
+local new_kern            = nodes.pool.kern
+local concat_nodes        = nodes.concat
+local hpack_nodes         = node.hpack
+local copy_node           = node.copy
+local get_list_dimensions = node.dimensions
+local set_attribute       = node.set_attribute
+local has_attribute       = node.has_attribute
+local hlist_code          = nodes.nodecodes.hlist
+
+local tex_set_attribute   = tex.setattribute
+local unsetvalue          = attributes.unsetvalue
+
+local min_threshold = 0
+local max_threshold = 0
+
+local function set(n)
+    nodes.tasks.enableaction("mvlbuilders", "typesetters.checkers.handler")
+    nodes.tasks.enableaction("vboxbuilders","typesetters.checkers.handler")
+    tex_set_attribute(a_justification,n or 1)
+    function typesetters.checkers.set(n)
+        tex_set_attribute(a_justification,n or 1)
+    end
+end
+
+local function reset()
+    tex_set_attribute(a_justification,unsetvalue)
+end
+
+checkers.set   = set
+checkers.reset = reset
+
+function commands.showjustification(n)
+    set(n)
+end
+
+trackers.register("visualizers.justification", function(v)
+    if v then
+        set(1)
+    else
+        reset()
+    end
+end)
+
+function checkers.handler(head)
+    for current in node.traverse_id(hlist_code,head) do
+        if has_attribute(current,a_justification,1) then
+            set_attribute(current,a_justification,0)
+            local width = current.width
+            if width > 0 then
+                local list = current.list
+                if list then
+                    local naturalwidth, naturalheight, naturaldepth = get_list_dimensions(list)
+                    local delta = naturalwidth - width
+                    if naturalwidth == 0 or delta == 0 then
+                        -- special box
+                    elseif delta >= max_threshold then
+                        local rule = new_rule(delta,naturalheight,naturaldepth)
+                        list = hpack_nodes(list,width,"exactly")
+                        if list.glue_set == 1 then
+                            setcolor(rule,"trace:dr")
+                            settransparency(rule,"trace:dr")
+                        else
+                            setcolor(rule,"trace:db")
+                            settransparency(rule,"trace:db")
+                        end
+                        rule = hpack_nodes(rule)
+                        rule.width = 0
+                        rule.height = 0
+                        rule.depth = 0
+                        current.list = concat_nodes { list, rule }
+                     -- current.list = concat_nodes { list, new_kern(-naturalwidth+width), rule }
+                    elseif delta <= min_threshold then
+                        local alignstate = has_attribute(list,a_alignstate)
+                        if alignstate == 1 then
+                            local rule = new_rule(-delta,naturalheight,naturaldepth)
+                            setcolor(rule,"trace:dc")
+                            settransparency(rule,"trace:dc")
+                            rule = hpack_nodes(rule)
+                            rule.height = 0
+                            rule.depth = 0
+                            rule.width = 0
+                            current.list = nodes.concat { rule, list }
+                        elseif alignstate == 2 then
+                            local rule = new_rule(-delta/2,naturalheight,naturaldepth)
+                            setcolor(rule,"trace:dy")
+                            settransparency(rule,"trace:dy")
+                            rule = hpack_nodes(rule)
+                            rule.width = 0
+                            rule.height = 0
+                            rule.depth = 0
+                            current.list = concat_nodes { copy_node(rule), list, new_kern(delta/2), rule }
+                        elseif alignstate == 3 then
+                            local rule = new_rule(-delta,naturalheight,naturaldepth)
+                            setcolor(rule,"trace:dm")
+                            settransparency(rule,"trace:dm")
+                            rule = hpack_nodes(rule)
+                            rule.height = 0
+                            rule.depth = 0
+                            current.list = concat_nodes { list, new_kern(delta), rule }
+                        else
+                            local rule = new_rule(-delta,naturalheight,naturaldepth)
+                            setcolor(rule,"trace:dg")
+                            settransparency(rule,"trace:dg")
+                            rule = hpack_nodes(rule)
+                            rule.height = 0
+                            rule.depth = 0
+                            rule.width = 0
+                            current.list = concat_nodes { list, new_kern(delta), rule }
+                        end
+                    end
+                end
+            end
+        end
+    end
+    return head
+end
diff --git a/tex/context/base/trac-jus.mkiv b/tex/context/base/trac-jus.mkiv
new file mode 100644
index 000000000..7a5347da8
--- /dev/null
+++ b/tex/context/base/trac-jus.mkiv
@@ -0,0 +1,25 @@
+%D \module
+%D   [       file=trac-jus,
+%D        version=2112.11.27,
+%D          title=\CONTEXT\ Tracing Macros,
+%D       subtitle=Justification,
+%D         author=Hans Hagen,
+%D           date=\currentdate,
+%D      copyright={PRAGMA ADE \& \CONTEXT\ Development Team}]
+%C
+%C This module is part of the \CONTEXT\ macro||package and is
+%C therefore copyrighted by \PRAGMA. See mreadme.pdf for
+%C details.
+
+\writestatus{loading}{ConTeXt Tracing Macros / Justification}
+
+\registerctxluafile{trac-jus}{1.001}
+
+\unprotect
+
+\definesystemattribute[justification] [public]
+
+\unexpanded\def\showjustification
+  {\ctxcommand{showjustification()}}
+
+\protect \endinput
diff --git a/tex/context/base/util-sql.lua b/tex/context/base/util-sql.lua
index 6096ffe7b..fc460b984 100644
--- a/tex/context/base/util-sql.lua
+++ b/tex/context/base/util-sql.lua
@@ -123,31 +123,29 @@ sql.converters   = converters
 local function makeconverter(entries,celltemplate,wraptemplate)
     local shortcuts   = { }
     local assignments = { }
-    local function cell(i)
-        return format(celltemplate,i,i)
-    end
     for i=1,#entries do
         local entry = entries[i]
-        local nam   = entry.name
-        local typ   = entry.type
-        if typ == "boolean" then
-            assignments[i] = format("[%q] = booleanstring(%s),",nam,cell(i))
-        elseif typ == "number" then
-            assignments[i] = format("[%q] = tonumber(%s),",nam,cell(i))
-        elseif type(typ) == "function" then
+        local name  = entry.name
+        local kind  = entry.type or entry.kind
+        local value = format(celltemplate,i,i)
+        if kind == "boolean" then
+            assignments[i] = format("[%q] = booleanstring(%s),",name,value)
+        elseif kind == "number" then
+            assignments[i] = format("[%q] = tonumber(%s),",name,value)
+        elseif type(kind) == "function" then
             local c = #converters + 1
-            converters[c] = typ
+            converters[c] = kind
             shortcuts[#shortcuts+1] = format("local fun_%s = converters[%s]",c,c)
-            assignments[i] = format("[%q] = fun_%s(%s),",nam,c,cell(i))
-        elseif type(typ) == "table" then
+            assignments[i] = format("[%q] = fun_%s(%s),",name,c,value)
+        elseif type(kind) == "table" then
             local c = #converters + 1
-            converters[c] = typ
+            converters[c] = kind
             shortcuts[#shortcuts+1] = format("local tab_%s = converters[%s]",c,c)
-            assignments[i] = format("[%q] = tab_%s[%s],",nam,#converters,cell(i))
-        elseif typ == "deserialize" then
-            assignments[i] = format("[%q] = deserialize(%s),",nam,cell(i))
+            assignments[i] = format("[%q] = tab_%s[%s],",name,#converters,value)
+        elseif kind == "deserialize" then
+            assignments[i] = format("[%q] = deserialize(%s),",name,value)
         else
-            assignments[i] = format("[%q] = %s,",nam,cell(i))
+            assignments[i] = format("[%q] = %s,",name,value)
         end
     end
     local code = format(wraptemplate,concat(shortcuts,"\n"),concat(assignments,"\n            "))
diff --git a/tex/generic/context/luatex/luatex-fonts-merged.lua b/tex/generic/context/luatex/luatex-fonts-merged.lua
index 9367a1527..5edda4213 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 : luatex-fonts-merged.lua
 -- parent file : luatex-fonts.lua
--- merge date  : 11/26/12 13:31:26
+-- merge date  : 11/27/12 15:54:44
 
 do -- begin closure to overcome local limits and interference