beta 2013.08.01 01:31

13 files changed, 202 insertions, 34 deletions

diff --git a/tex/context/base/back-ini.lua b/tex/context/base/back-ini.lua
index bdd931abd..6f58b3262 100644
--- a/tex/context/base/back-ini.lua
+++ b/tex/context/base/back-ini.lua
@@ -8,7 +8,6 @@ if not modules then modules = { } end modules ['back-ini'] = {
 
 local next, type = next, type
 local format = string.format
-local sind, cosd = math.sind, math.cosd
 
 backends       = backends or { }
 local backends = backends
@@ -96,11 +95,3 @@ tables.vfspecials = allocate {
     startslant = comment,
     stopslant  = comment,
 }
-
--- experimental code --
-
-function commands.pdfrotation(a) -- somewhat weird here
-    local s, c = sind(a), cosd(a)
-    context("%0.6f %0.6f %0.6f %0.6f",c,s,-s,c)
-end
-
diff --git a/tex/context/base/back-pdf.lua b/tex/context/base/back-pdf.lua
index 63261aa3b..f9115375c 100644
--- a/tex/context/base/back-pdf.lua
+++ b/tex/context/base/back-pdf.lua
@@ -18,3 +18,72 @@ function codeinjections.getoutputfilename()
 end
 
 backends.install("pdf")
+
+-- experimental code (somewhat weird here) .. todo: nodeinjections
+
+local context = context
+
+local sind, cosd = math.sind, math.cosd
+local insert, remove = table.insert, table.remove
+
+-- function commands.pdfrotation(a) -- somewhat weird here
+--     local s, c = sind(a), cosd(a)
+--     context("%0.6f %0.6f %0.6f %0.6f",c,s,-s,c)
+-- end
+
+local stack       = { }
+local f_rotation  = string.formatters["%0.8f %0.8f %0.8f %0.8f"]
+local f_scaling   = string.formatters["%0.8f 0 0 %0.8f"]
+local s_mirroring = "-1 0 0 1"
+local f_matrix    = string.formatters["%0.8f %0.8f %0.8f %0.8f"]
+
+local pdfsetmatrix = nodes.pool.pdfsetmatrix
+
+local function pop()
+    local top = remove(stack)
+    if top then
+        context(pdfsetmatrix(top))
+    end
+end
+
+function commands.pdfstartrotation(a)
+    if a == 0 then
+        insert(stack,false)
+    else
+        local s, c = sind(a), cosd(a)
+        context(pdfsetmatrix(f_rotation(c,s,-s,c)))
+        insert(stack,f_rotation(-c,-s,s,-c))
+    end
+end
+
+function commands.pdfstartscaling(sx,sy)
+    if sx == 1 and sy == 1 then
+        insert(stack,false)
+    else
+        if sx == 0 then sx = 0.0001 end -- prevent acrobat crash
+        if sy == 0 then sy = 0.0001 end -- prevent acrobat crash
+        context(pdfsetmatrix(f_scaling(sx,sy)))
+        insert(stack,f_scaling(1/sx,1/sy))
+    end
+end
+
+function commands.pdfstartmirroring(sx,sy)
+    context(pdfsetmatrix(s_mirroring))
+    insert(stack,s_mirroring)
+end
+
+function commands.pdfstartmatrix(sx,rx,ry,sy)
+    if sx ==1 and rx == 0 and ry == 0 and sy == 1 then
+        insert(stack,false)
+    else
+        if sx == 0 then sx = 0.0001 end -- prevent acrobat crash
+        if sy == 0 then sy = 0.0001 end -- prevent acrobat crash
+        context(pdfsetmatrix(f_matrix(rx,sx,sy,ry)))
+        insert(stack,f_matrix(-rx,-sx,-sy,-ry))
+    end
+end
+
+commands.pdfstoprotation  = pop
+commands.pdfstopscaling   = pop
+commands.pdfstopmirroring = pop
+commands.pdfstopmatrix    = pop
diff --git a/tex/context/base/back-pdf.mkiv b/tex/context/base/back-pdf.mkiv
index 3be1c4ec1..39d9e114a 100644
--- a/tex/context/base/back-pdf.mkiv
+++ b/tex/context/base/back-pdf.mkiv
@@ -149,50 +149,90 @@
 
 % todo: inject at the lua end cq. deal with #5 and #6 too
 
+% \unexpanded\def\dostartrotation#1% grouped
+%   {\forcecolorhack % maybe use signal instead
+%    \advance\backendtransformlevel\plusone
+%    \pdfsave
+%    \pdfsetmatrix{\ctxcommand{pdfrotation(#1)}}}
+%
+% \unexpanded\def\dostoprotation
+%   {\pdfrestore
+%    \advance\backendtransformlevel\minusone}
+
 \unexpanded\def\dostartrotation#1% grouped
   {\forcecolorhack % maybe use signal instead
    \advance\backendtransformlevel\plusone
-   \pdfsave
-   \pdfsetmatrix{\ctxcommand{pdfrotation(#1)}}}
+   \ctxcommand{pdfstartrotation(#1)}}
 
 \unexpanded\def\dostoprotation
-  {\pdfrestore
+  {\ctxcommand{pdfstoprotation()}%
    \advance\backendtransformlevel\minusone}
 
+% \unexpanded\def\dostartscaling#1#2% the test is needed because acrobat is bugged!
+%   {\forcecolorhack % maybe use signal instead
+%    \advance\backendtransformlevel\plusone
+%    \pdfsave
+%    \pdfsetmatrix
+%      {\ifdim#1\points=\zeropoint.0001\else#1\fi\space 0 0
+%       \ifdim#2\points=\zeropoint.0001\else#2\fi\space}}% 0 0
+%
+% \unexpanded\def\dostopscaling
+%   {\pdfrestore
+%    \advance\backendtransformlevel\minusone}
+
 \unexpanded\def\dostartscaling#1#2% the test is needed because acrobat is bugged!
   {\forcecolorhack % maybe use signal instead
    \advance\backendtransformlevel\plusone
-   \pdfsave
-   \pdfsetmatrix
-     {\ifdim#1\points=\zeropoint.0001\else#1\fi\space 0 0
-      \ifdim#2\points=\zeropoint.0001\else#2\fi\space}}% 0 0
+   \ctxcommand{pdfstartscaling(#1,#2)}}
 
 \unexpanded\def\dostopscaling
-  {\pdfrestore
+  {\ctxcommand{pdfstopscaling()}%
    \advance\backendtransformlevel\minusone}
 
+% \unexpanded\def\dostartmirroring
+%   {\advance\backendtransformlevel\plusone
+%    \pdfsave
+%    \pdfsetmatrix{-1 0 0 1}} % 0 0
+
+% \unexpanded\def\dostopmirroring
+%   {\pdfrestore
+%    \advance\backendtransformlevel\minusone}
+
 \unexpanded\def\dostartmirroring
   {\advance\backendtransformlevel\plusone
-   \pdfsave
-   \pdfsetmatrix{-1 0 0 1}} % 0 0
+   \ctxcommand{pdfstartmirroring()}}
 
 \unexpanded\def\dostopmirroring
-  {\pdfrestore
+  {\ctxcommand{pdfstopmirroring()}%
    \advance\backendtransformlevel\minusone}
 
+% \unexpanded\def\dotransformnextbox#1#2#3#4#5#6% sx rx ry sy tx ty (will change) / basepoints !
+%   {\advance\backendtransformlevel\plusone
+%    % fixing ht/dp/wd should happen elsewhere
+%    \dowithnextbox{\dodotransformnextbox{#5}{#6}{#1 #2 #3 #4}}}
+%
+% \unexpanded\def\dodotransformnextbox#1#2#3%
+%   {\hbox
+%      {\kern#1\onebasepoint
+%       \raise#2\onebasepoint\hbox
+%         {\pdfsave
+%          \pdfsetmatrix{#3}% 0 0 (no #5 #6 yet)
+%          \box\nextbox
+%          \pdfrestore
+%          \advance\backendtransformlevel\minusone}}}
+
 \unexpanded\def\dotransformnextbox#1#2#3#4#5#6% sx rx ry sy tx ty (will change) / basepoints !
   {\advance\backendtransformlevel\plusone
    % fixing ht/dp/wd should happen elsewhere
-   \dowithnextbox{\dodotransformnextbox{#5}{#6}{#1 #2 #3 #4}}}
+   \dowithnextbox{\dodotransformnextbox{#5}{#6}{#1}{#2}{#3}{#4}}}
 
-\unexpanded\def\dodotransformnextbox#1#2#3%
+\unexpanded\def\dodotransformnextbox#1#2#3#4#5#6%
   {\hbox
      {\kern#1\onebasepoint
       \raise#2\onebasepoint\hbox
-        {\pdfsave
-         \pdfsetmatrix{#3}% 0 0 (no #5 #6 yet)
+        {\ctxcommand{pdfstartmatrix(#3,#4,#5,#6)}
          \box\nextbox
-         \pdfrestore
+         \ctxcommand{pdfstopmatrix()}
          \advance\backendtransformlevel\minusone}}}
 
 \unexpanded\def\dostartclipping#1#2#3% we can move this to lua and only set a box here
diff --git a/tex/context/base/cont-new.mkiv b/tex/context/base/cont-new.mkiv
index d77980ea4..62db62acc 100644
--- a/tex/context/base/cont-new.mkiv
+++ b/tex/context/base/cont-new.mkiv
@@ -11,7 +11,7 @@
 %C therefore copyrighted by \PRAGMA. See mreadme.pdf for
 %C details.
 
-\newcontextversion{2013.07.24 14:11}
+\newcontextversion{2013.08.01 01:31}
 
 %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 82afc8c2b..040863fbb 100644
--- a/tex/context/base/context-version.pdf
+++ b/tex/context/base/context-version.pdf
diff --git a/tex/context/base/context.mkiv b/tex/context/base/context.mkiv
index 381d2a258..62a65a81c 100644
--- a/tex/context/base/context.mkiv
+++ b/tex/context/base/context.mkiv
@@ -25,7 +25,7 @@
 %D up and the dependencies are more consistent.
 
 \edef\contextformat {\jobname}
-\edef\contextversion{2013.07.31 20:23}
+\edef\contextversion{2013.08.01 01:31}
 \edef\contextkind   {beta}
 
 %D For those who want to use this:
diff --git a/tex/context/base/math-noa.lua b/tex/context/base/math-noa.lua
index 903c91f34..22b92c38a 100644
--- a/tex/context/base/math-noa.lua
+++ b/tex/context/base/math-noa.lua
@@ -20,6 +20,7 @@ if not modules then modules = { } end modules ['math-noa'] = {
 
 local utfchar, utfbyte = utf.char, utf.byte
 local formatters = string.formatters
+local div = math.div
 
 local fonts, nodes, node, mathematics = fonts, nodes, node, mathematics
 
@@ -818,6 +819,7 @@ trackers.register("math.italics", function(v)
             if k > 0 then
                 return setcolor(new_rule(k,ex,ex),c_positive_d)
             else
+                -- influences un*
                 return old_kern(k) .. setcolor(new_rule(-k,ex,ex),c_negative_d) .. old_kern(k)
             end
         end
@@ -1001,6 +1003,49 @@ function handlers.variants(head,style,penalties)
     return true
 end
 
+-- for manuals
+
+local classes = { }
+
+local colors = {
+    [noadcodes.rel]             = "trace:dr",
+    [noadcodes.ord]             = "trace:db",
+    [noadcodes.bin]             = "trace:dg",
+    [noadcodes.open]            = "trace:dm",
+    [noadcodes.close]           = "trace:dm",
+    [noadcodes.punct]           = "trace:dc",
+ -- [noadcodes.opdisplaylimits] = "",
+ -- [noadcodes.oplimits]        = "",
+ -- [noadcodes.opnolimits]      = "",
+ -- [noadcodes.inner            = "",
+ -- [noadcodes.under            = "",
+ -- [noadcodes.over             = "",
+ -- [noadcodes.vcenter          = "",
+}
+
+classes[math_char] = function(pointer,what,n,parent)
+    local color = colors[getsubtype(parent)]
+    if color then
+        setcolor(pointer,color)
+    else
+        resetcolor(pointer)
+    end
+end
+
+function handlers.classes(head,style,penalties)
+    processnoads(head,classes,"classes")
+    return true
+end
+
+trackers.register("math.classes",function(v)
+    if v then
+        tasks.enableaction("math", "noads.handlers.classes")
+    else
+        tasks.disableaction("math", "noads.handlers.classes")
+    end
+end)
+
+
 -- the normal builder
 
 function builders.kernel.mlist_to_hlist(head,style,penalties)
diff --git a/tex/context/base/math-rad.mkvi b/tex/context/base/math-rad.mkvi
index 386b1deaf..b9d4021c3 100644
--- a/tex/context/base/math-rad.mkvi
+++ b/tex/context/base/math-rad.mkvi
@@ -222,11 +222,12 @@
    \edef\overlaylinewidth{\the\linewidth}%
    \edef\overlaylinecolor{\mathornamentparameter\c!color}%
    \edef\p_mp{\mathornamentparameter\c!mp}%
+   % thw width of the graphic determines the width of the final result
    \setbox\scratchbox\hbox{\uniqueMPgraphic{\p_mp}}% todo: add code key + tag
    \scratchdimen       \wd\scratchbox
-   \scratchtopoffset   \dimexpr\scratchoffset+\dp\nextbox\relax
-   \scratchbottomoffset\dimexpr\scratchoffset+\ht\nextbox/2\relax
-   \hbox to \scratchdimen{\hss\box\nextbox\hskip\scratchoffset}%
+ % \scratchtopoffset   \dimexpr\scratchoffset+\dp\nextbox\relax
+ % \scratchbottomoffset\dimexpr\scratchoffset+\ht\nextbox/2\relax
+   \hbox to \scratchdimen{\hss\box\nextbox\hss}%
    \hskip-\scratchdimen
    \box\scratchbox
    \endgroup}
@@ -261,6 +262,7 @@
 %             rotated 30
 %     withcolor
 %         OverlayLineColor ;
+%         draw boundingbox currentpicture;
 % \stopuniqueMPgraphic
 %
 % \definemathornament [mathhat] [mp=math:ornament:hat]
diff --git a/tex/context/base/s-inf-03.pdf b/tex/context/base/s-inf-03.pdf
index b0aaf6733..d4a4816b9 100644
--- a/tex/context/base/s-inf-03.pdf
+++ b/tex/context/base/s-inf-03.pdf
diff --git a/tex/context/base/spac-ver.lua b/tex/context/base/spac-ver.lua
index de3a1f1e8..7bca7e8a1 100644
--- a/tex/context/base/spac-ver.lua
+++ b/tex/context/base/spac-ver.lua
@@ -95,6 +95,7 @@ local hlist_code          = nodecodes.hlist
 local vlist_code          = nodecodes.vlist
 local whatsit_code        = nodecodes.whatsit
 
+local texnest             = tex.nest
 
 local vspacing            = builders.vspacing or { }
 builders.vspacing         = vspacing
@@ -785,8 +786,17 @@ function vspacing.snapbox(n,how)
     end
 end
 
+-- I need to figure out how to deal with the prevdepth that crosses pages. In fact,
+-- prevdepth is often quite interfering (even over a next paragraph) so I need to
+-- figure out a trick.
+
 local function forced_skip(head,current,width,where,trace)
-    if where == "after" then
+    if head == current and head.subtype == baselineskip_code then
+        width = width - head.spec.width
+    end
+    if width == 0 then
+        -- do nothing
+    elseif where == "after" then
         head, current = insert_node_after(head,current,new_rule(0,0,0))
         head, current = insert_node_after(head,current,new_kern(width))
         head, current = insert_node_after(head,current,new_rule(0,0,0))
@@ -1176,6 +1186,7 @@ local function collapser(head,where,what,trace,snap,a_snapmethod) -- maybe also
         else
             head, tail = insert_node_after(head,tail,glue_data)
         end
+texnest[texnest.ptr].prevdepth = 0 -- appending to the list bypasses tex's prevdepth handler
     end
     if trace then
         if glue_data or penalty_data then
@@ -1282,6 +1293,15 @@ function vspacing.collapsevbox(n) -- for boxes but using global a_snapmethod
     end
 end
 
+-- This one is needed to prevent bleeding of prevdepth to the next page
+-- which doesn't work well with forced skips.
+
+local outer = texnest[0]
+
+function vspacing.resetprevdepth()
+    outer.prevdepth = 0
+end
+
 -- interface
 
 commands.vspacing          = vspacing.analyze
@@ -1289,3 +1309,4 @@ commands.vspacingsetamount = vspacing.setskip
 commands.vspacingdefine    = vspacing.setmap
 commands.vspacingcollapse  = vspacing.collapsevbox
 commands.vspacingsnap      = vspacing.snapbox
+commands.resetprevdepth    = vspacing.resetprevdepth
diff --git a/tex/context/base/status-files.pdf b/tex/context/base/status-files.pdf
index 035c411ba..92672c688 100644
--- a/tex/context/base/status-files.pdf
+++ b/tex/context/base/status-files.pdf
diff --git a/tex/context/base/status-lua.log b/tex/context/base/status-lua.log
index 3ad484d9b..f1172b533 100644
--- a/tex/context/base/status-lua.log
+++ b/tex/context/base/status-lua.log
@@ -1,6 +1,6 @@
 (cont-yes.mkiv
 
-ConTeXt  ver: 2013.07.31 20:23 MKIV beta  fmt: 2013.7.31  int: english/english
+ConTeXt  ver: 2013.08.01 01:31 MKIV beta  fmt: 2013.8.1  int: english/english
 
 system          > 'cont-new.mkiv' loaded
 (cont-new.mkiv)
@@ -75,4 +75,4 @@ references      > unknown reference '[][mathematics]'
 references      > unknown reference '[][mbox]'
 references      > unknown reference '[][md5]'
 references      > unknown reference '[][metapost]'
-references      > unknown reference '[][mime]'
\ No newline at end of file
+references      > unknown reference '[][mime]'
diff --git a/tex/generic/context/luatex/luatex-fonts-merged.lua b/tex/generic/context/luatex/luatex-fonts-merged.lua
index 621b9ae0b..146ba3655 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  : 07/31/13 20:23:22
+-- merge date  : 08/01/13 01:31:02
 
 do -- begin closure to overcome local limits and interference