beta 2013.08.28 23:08

17 files changed, 152 insertions, 83 deletions

diff --git a/tex/context/base/cont-new.mkiv b/tex/context/base/cont-new.mkiv
index 4483e54e5..2d8f76d93 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{2013.08.26 16:41}
+\newcontextversion{2013.08.28 23:08}
 
 %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 142d68af1..465b5c002 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 0213ba936..4a3fd8877 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{2013.08.26 16:41}
+\edef\contextversion{2013.08.28 23:08}
 \edef\contextkind   {beta}
 
 %D For those who want to use this:
diff --git a/tex/context/base/font-afm.lua b/tex/context/base/font-afm.lua
index ac27d652c..1c68dc706 100644
--- a/tex/context/base/font-afm.lua
+++ b/tex/context/base/font-afm.lua
@@ -637,7 +637,7 @@ local function copytotfm(data)
         parameters.x_height      = 400
         parameters.quad          = 1000
         --
-        if italicangle then
+        if italicangle and italicangle ~= 0 then
             parameters.italicangle  = italicangle
             parameters.italicfactor = math.cos(math.rad(90+italicangle))
             parameters.slant        = - math.tan(italicangle*math.pi/180)
diff --git a/tex/context/base/font-con.lua b/tex/context/base/font-con.lua
index c5f891f27..4a84d441a 100644
--- a/tex/context/base/font-con.lua
+++ b/tex/context/base/font-con.lua
@@ -380,7 +380,7 @@ function constructors.scale(tfmdata,specification)
     targetproperties.mode     = properties.mode     or "base" -- inherited
     --
     local askedscaledpoints   = scaledpoints
-    local scaledpoints, delta = constructors.calculatescale(tfmdata,scaledpoints) -- no shortcut, dan be redefined
+    local scaledpoints, delta = constructors.calculatescale(tfmdata,scaledpoints,nil,specification) -- no shortcut, dan be redefined
     --
     local hdelta         = delta
     local vdelta         = delta
@@ -1000,21 +1000,11 @@ function constructors.hashinstance(specification,force)
         size = math.round(constructors.scaled(size,designsizes[hash]))
         specification.size = size
     end
- -- local mathsize = specification.mathsize or 0
- -- if mathsize > 0 then
- --     local textsize = specification.textsize
- --     if fallbacks then
- --         return hash .. ' @ ' .. tostring(size) .. ' [ ' .. tostring(mathsize) .. ' : ' .. tostring(textsize) .. ' ] @ ' .. fallbacks
- --     else
- --         return hash .. ' @ ' .. tostring(size) .. ' [ ' .. tostring(mathsize) .. ' : ' .. tostring(textsize) .. ' ]'
- --     end
- -- else
-        if fallbacks then
-            return hash .. ' @ ' .. tostring(size) .. ' @ ' .. fallbacks
-        else
-            return hash .. ' @ ' .. tostring(size)
-        end
- -- end
+    if fallbacks then
+        return hash .. ' @ ' .. tostring(size) .. ' @ ' .. fallbacks
+    else
+        return hash .. ' @ ' .. tostring(size)
+    end
 end
 
 function constructors.setname(tfmdata,specification) -- todo: get specification from tfmdata
diff --git a/tex/context/base/font-ctx.lua b/tex/context/base/font-ctx.lua
index 229915fb8..8b44d1c36 100644
--- a/tex/context/base/font-ctx.lua
+++ b/tex/context/base/font-ctx.lua
@@ -801,12 +801,16 @@ local value        = C((leftparent * (1-rightparent)^0 * rightparent + (1-space)
 local dimension    = C((space/"" + P(1))^1)
 local rest         = C(P(1)^0)
 local scale_none   =               Cc(0)
-local scale_at     = P("at")     * Cc(1) * spaces * dimension -- value
-local scale_sa     = P("sa")     * Cc(2) * spaces * dimension -- value
-local scale_mo     = P("mo")     * Cc(3) * spaces * dimension -- value
-local scale_scaled = P("scaled") * Cc(4) * spaces * dimension -- value
+local scale_at     = P("at")     * Cc(1) * spaces * dimension -- dimension
+local scale_sa     = P("sa")     * Cc(2) * spaces * dimension -- number
+local scale_mo     = P("mo")     * Cc(3) * spaces * dimension -- number
+local scale_scaled = P("scaled") * Cc(4) * spaces * dimension -- number
+local scale_ht     = P("ht")     * Cc(5) * spaces * dimension -- dimension
+local scale_cp     = P("cp")     * Cc(6) * spaces * dimension -- dimension
 
-local sizepattern  = spaces * (scale_at + scale_sa + scale_mo + scale_scaled + scale_none)
+local specialscale = { [5] = "ht", [6] = "cp" }
+
+local sizepattern  = spaces * (scale_at + scale_sa + scale_mo + scale_ht + scale_cp + scale_scaled + scale_none)
 local splitpattern = spaces * value * spaces * rest
 
 function helpers.splitfontpattern(str)
@@ -884,7 +888,7 @@ local function nice_cs(cs)
 end
 
 function commands.definefont_two(global,cs,str,size,inheritancemode,classfeatures,fontfeatures,classfallbacks,fontfallbacks,
-        mathsize,textsize,relativeid,classgoodies,goodies,classdesignsize,fontdesignsize)
+        mathsize,textsize,relativeid,classgoodies,goodies,classdesignsize,fontdesignsize,scaledfontmode)
     if trace_defining then
         report_defining("start stage two: %s (size %s)",str,size)
     end
@@ -914,6 +918,7 @@ function commands.definefont_two(global,cs,str,size,inheritancemode,classfeature
         local id = tonumber(relativeid) or 0
         specification.relativeid = id > 0 and id
     end
+    --
     specification.name      = name
     specification.size      = size
     specification.sub       = (sub and sub ~= "" and sub) or specification.sub
@@ -922,6 +927,7 @@ function commands.definefont_two(global,cs,str,size,inheritancemode,classfeature
     specification.goodies   = goodies
     specification.cs        = cs
     specification.global    = global
+    specification.scalemode = scaledfontmode -- context specific
     if detail and detail ~= "" then
         specification.method = method or "*"
         specification.detail = detail
@@ -991,7 +997,9 @@ function commands.definefont_two(global,cs,str,size,inheritancemode,classfeature
         csnames[tfmdata] = specification.cs
         texdefinefont(global,cs,tfmdata)
         -- resolved (when designsize is used):
-        setsomefontsize((fontdata[tfmdata].parameters.size or 0) .. "sp")
+        local size = fontdata[tfmdata].parameters.size or 0
+        setsomefontsize(size .. "sp")
+texsetcount("scaledfontsize",size)
         lastfontid = tfmdata
     else
         -- setting the extra characters will move elsewhere
@@ -1016,7 +1024,9 @@ function commands.definefont_two(global,cs,str,size,inheritancemode,classfeature
                 name,id,nice_cs(cs),classfeatures,fontfeatures,classfallbacks,fontfallbacks)
         end
         -- resolved (when designsize is used):
-        setsomefontsize((tfmdata.parameters.size or 655360) .. "sp")
+        local size = tfmdata.parameters.size or 655360
+        setsomefontsize(size .. "sp")
+texsetcount("scaledfontsize",size)
         lastfontid = id
     end
     if trace_defining then
@@ -1149,9 +1159,25 @@ end)
 
 local calculatescale  = constructors.calculatescale
 
-function constructors.calculatescale(tfmdata,scaledpoints,relativeid)
-    local scaledpoints, delta = calculatescale(tfmdata,scaledpoints)
- -- if enable_auto_r_scale and relativeid then -- for the moment this is rather context specific
+function constructors.calculatescale(tfmdata,scaledpoints,relativeid,specification)
+    if specification then
+        local scalemode = specification.scalemode
+        local special   = scalemode and specialscale[scalemode]
+        if special then
+            -- we also have available specification.textsize
+            local parameters = tfmdata.parameters
+            local designsize = parameters.designsize
+            if     special == "ht" then
+                local height = parameters.ascender * designsize / parameters.units
+                scaledpoints = (scaledpoints/height) * designsize
+            elseif special == "cp" then
+                local height = (tfmdata.descriptions[utf.byte("X")].height or parameters.ascender) * designsize / parameters.units
+                scaledpoints = (scaledpoints/height) * designsize
+            end
+        end
+    end
+    scaledpoints, delta = calculatescale(tfmdata,scaledpoints)
+ -- if enable_auto_r_scale and relativeid then -- for the moment this is rather context specific (we need to hash rscale then)
  --     local relativedata = fontdata[relativeid]
  --     local rfmdata = relativedata and relativedata.unscaled and relativedata.unscaled
  --     local id_x_height = rfmdata and rfmdata.parameters and rfmdata.parameters.x_height
@@ -1165,6 +1191,31 @@ function constructors.calculatescale(tfmdata,scaledpoints,relativeid)
     return scaledpoints, delta
 end
 
+local designsizes = constructors.designsizes
+
+function constructors.hashinstance(specification,force)
+    local hash, size, fallbacks = specification.hash, specification.size, specification.fallbacks
+    if force or not hash then
+        hash = constructors.hashfeatures(specification)
+        specification.hash = hash
+    end
+    if size < 1000 and designsizes[hash] then
+        size = math.round(constructors.scaled(size,designsizes[hash]))
+        specification.size = size
+    end
+    if fallbacks then
+        return hash .. ' @ ' .. tostring(size) .. ' @ ' .. fallbacks
+    else
+        local scalemode = specification.scalemode
+        local special   = scalemode and specialscale[scalemode]
+        if special then
+            return hash .. ' @ ' .. tostring(size) .. ' @ ' .. special
+        else
+            return hash .. ' @ ' .. tostring(size)
+        end
+    end
+end
+
 -- We overload the (generic) resolver:
 
 local resolvers    = definers.resolvers
diff --git a/tex/context/base/font-ini.mkvi b/tex/context/base/font-ini.mkvi
index 768fea070..0d356895e 100644
--- a/tex/context/base/font-ini.mkvi
+++ b/tex/context/base/font-ini.mkvi
@@ -700,6 +700,7 @@
 \let\somefontsize\zerocount
 
 \newcount\scaledfontmode  % also used at the lua end
+\newcount\scaledfontsize  % also used at the lua end
 \newcount\lastfontid      % also used at the lua end / tex end
 \newtoks \everydefinefont
 
@@ -755,6 +756,9 @@
    \or
      % scaled, don't use this one as it's unpredictable
      \d_font_scaled_font_size-\somefontsize\scaledpoint
+   \else % ht cp
+     % experiment, yet undocumented
+     \d_font_scaled_font_size\somefontsize
    \fi
    \relax
    \d_font_scaled_font_size\v_font_size_relative\d_font_scaled_font_size
@@ -770,7 +774,7 @@
    \else
      \d_font_scaled_text_face\textface
    \fi
-   \edef\somefontspec{at \number\d_font_scaled_font_size sp}%
+   \edef\somefontspec{at \number\d_font_scaled_font_size sp}% probably no longer used, needs checking
    \edef\somefontfile{\truefontname\somefontname}%
    \ifx\somefontfile\s!unknown
      \edef\somefontfile{\defaultfontfile}%
@@ -797,9 +801,10 @@
       "\m_font_class_goodies",            % experiment (not yet used)
       "\m_font_goodies",
       "\m_font_class_designsize",
-      "\m_font_designsize"
+      "\m_font_designsize",
+      \number\scaledfontmode
    )}%
-   \edef\somefontspec{at \number\d_font_scaled_font_size sp}% we need the resolved designsize (for fallbacks)
+   \edef\somefontspec{at \number\scaledfontsize sp}% we need the resolved designsize (for fallbacks)
    \expandafter\let\expandafter\lastrawfontcall\csname#csname\endcsname
    \the\everydefinefont
    \c_font_feature_inheritance_mode\c_font_feature_inheritance_default}
diff --git a/tex/context/base/font-otf.lua b/tex/context/base/font-otf.lua
index 7e267b15b..c694211b9 100644
--- a/tex/context/base/font-otf.lua
+++ b/tex/context/base/font-otf.lua
@@ -2087,7 +2087,7 @@ local function copytotfm(data,cache_id)
         if spaceunits < 2*units/5 then
             -- todo: warning
         end
-        if italicangle then
+        if italicangle and italicangle ~= 0 then
             parameters.italicangle  = italicangle
             parameters.italicfactor = math.cos(math.rad(90+italicangle))
             parameters.slant        = - math.tan(italicangle*math.pi/180)
diff --git a/tex/context/base/m-hemistich.mkiv b/tex/context/base/m-hemistich.mkiv
index 70c467c7b..55fde7b92 100644
--- a/tex/context/base/m-hemistich.mkiv
+++ b/tex/context/base/m-hemistich.mkiv
@@ -71,7 +71,7 @@
 
 \setuphemistich
   [leftcolor=darkred,
-   middlecolor=darkgreen,
+   separatorcolor=darkgreen,
    rightcolor=darkblue]
 
 \setupwhitespace
diff --git a/tex/context/base/mlib-pps.lua b/tex/context/base/mlib-pps.lua
index 4a887150d..96d5c092f 100644
--- a/tex/context/base/mlib-pps.lua
+++ b/tex/context/base/mlib-pps.lua
@@ -809,6 +809,7 @@ local function tx_reset()
 end
 
 local fmt = formatters["%s %s %s % t"]
+local pat = lpeg.tsplitat(":")
 
 local function tx_analyze(object,prescript) -- todo: hash content and reuse them
     local tx_stage = prescript.tx_stage
@@ -817,6 +818,12 @@ local function tx_analyze(object,prescript) -- todo: hash content and reuse them
         local tx_number = tonumber(prescript.tx_number)
         local s = object.postscript or ""
         local c = object.color -- only simple ones, no transparency
+        if #c == 0 then
+            local txc = prescript.tx_color
+            if txc then
+                c = lpegmatch(pat,txc)
+            end
+        end
         local a = prescript.tr_alternative
         local t = prescript.tr_transparency
         local h = fmt(tx_number,a or "?",t or "?",c)
diff --git a/tex/context/base/mult-mps.lua b/tex/context/base/mult-mps.lua
index 48fe36b52..fa93f7ef8 100644
--- a/tex/context/base/mult-mps.lua
+++ b/tex/context/base/mult-mps.lua
@@ -51,6 +51,7 @@ return {
         "top", "bot", "lft", "rt", "ulft", "urt", "llft", "lrt",
         --
         "redpart", "greenpart", "bluepart", "cyanpart", "magentapart", "yellowpart", "blackpart", "greypart",
+        "prescriptpart", "postscriptpart",
         "rgbcolor", "cmykcolor", "greycolor", "graycolor",
         "colormodel",  "graypart",
         "dashpart", "penpart",
diff --git a/tex/context/base/spac-ver.mkiv b/tex/context/base/spac-ver.mkiv
index 12d864e96..3b60c28bb 100644
--- a/tex/context/base/spac-ver.mkiv
+++ b/tex/context/base/spac-ver.mkiv
@@ -984,7 +984,7 @@
      \setcharstrut\m_strut
    \fi}
 
-\unexpanded\def\showstruts
+\unexpanded\def\showstruts % adapts .. is wrong
   {\setteststrut
    \settestcrlf}
 
diff --git a/tex/context/base/status-files.pdf b/tex/context/base/status-files.pdf
index 84a07b1c0..a984f1c6b 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 44685e6c7..ae1d43e6c 100644
--- a/tex/context/base/status-lua.log
+++ b/tex/context/base/status-lua.log
@@ -1,6 +1,6 @@
 (cont-yes.mkiv
 
-ConTeXt  ver: 2013.08.26 16:41 MKIV beta  fmt: 2013.8.26  int: english/english
+ConTeXt  ver: 2013.08.28 23:08 MKIV beta  fmt: 2013.8.28  int: english/english
 
 system          > 'cont-new.mkiv' loaded
 (cont-new.mkiv)
diff --git a/tex/context/base/typo-drp.lua b/tex/context/base/typo-drp.lua
index b7815efc2..1f935802d 100644
--- a/tex/context/base/typo-drp.lua
+++ b/tex/context/base/typo-drp.lua
@@ -6,9 +6,8 @@ if not modules then modules = { } end modules ['typo-drp'] = {
     license   = "see context related readme files"
 }
 
--- A playground for experiments. Currently we only have a dropped caps as special
--- but there might be more, so for the moment we keep this 'paragraphs' namespace
--- for this.
+-- This ons is sensitive for order (e.g. when combined with first line
+-- processing.
 
 local tonumber, type, next = tonumber, type, next
 local ceil = math.ceil
@@ -29,7 +28,9 @@ local hpack_nodes       = nodes.hpack
 local nodecodes         = nodes.nodecodes
 local whatsitcodes      = nodes.whatsitcodes
 
-local new_kern          = nodes.pool.kern
+local nodepool          = nodes.pool
+local new_kern          = nodepool.kern
+
 local insert_before     = nodes.insert_before
 local insert_after      = nodes.insert_after
 
@@ -109,6 +110,9 @@ actions[v_default] = function(head,setting)
             if setting.font then
                 first.font = setting.font
             end
+            if setting.dynamic > 0 then
+                first[0] = setting.dynamic
+            end
             -- can be a helper
             local ma = setting.ma or 0
             local ca = setting.ca
@@ -121,33 +125,38 @@ actions[v_default] = function(head,setting)
                 first[a_transparency] = ta
             end
             --
-            local width    = first.width
-            local height   = first.height
-            local depth    = first.depth
-            local distance = setting.distance or 0
-            local voffset  = setting.voffset or 0
-            local hoffset  = setting.hoffset or 0
-            first.xoffset  = - width  - hoffset - distance - parindent
-            first.yoffset  = - height - voffset
-            if true then
-                -- needed till we can store parindent with localpar
-                first.prev = nil
-                first.next = nil
-                local h = hpack_nodes(first)
-                h.width = 0
-                h.height = 0
-                h.depth = 0
-                prev.next = h
-                next.prev = h
-                h.next = next
-                h.prev = prev
-            end
+            local width     = first.width
+            local height    = first.height
+            local depth     = first.depth
+            local distance  = setting.distance or 0
+            local voffset   = setting.voffset or 0
+            local hoffset   = setting.hoffset or 0
+            local parindent = tex.parindent
+            local baseline  = texget("baselineskip").width
+            local lines     = tonumber(setting.n) or 0
+            --
+            first.xoffset   = - width  - hoffset - distance - parindent
+            first.yoffset   = - voffset -- no longer - height here 
+            -- We pack so that successive handling cannot touch the dropped cap. Packaging
+            -- in a hlist is also needed because we cannot locally adapt e.g. parindent (not
+            -- yet stored in with localpar).
+            first.prev = nil
+            first.next = nil
+            local h = hpack_nodes(first)
+            h.width = 0
+            h.height = 0
+            h.depth = 0
+            prev.next = h
+            next.prev = h
+            h.next = next
+            h.prev = prev
+
+            -- end of packaging
             if setting.location == v_margin then
                 -- okay
             else
-                local lines = tonumber(setting.n) or 0
                 if lines == 0 then -- safeguard, not too precise
-                    lines = ceil((height+voffset) / texget("baselineskip").width)
+                    lines = ceil((height+voffset) / baseline)
                 end
                 -- We cannot set parshape yet ... when we can I'll add a slope
                 -- option (positive and negative, in emwidth).
diff --git a/tex/context/base/typo-drp.mkiv b/tex/context/base/typo-drp.mkiv
index c78ed8d61..78f6df0a2 100644
--- a/tex/context/base/typo-drp.mkiv
+++ b/tex/context/base/typo-drp.mkiv
@@ -52,17 +52,17 @@
 
 \installcommandhandler \??initial {initial} \??initial
 
-\def\v_typo_initials_auto_scale % magic
-  {\the\dimexpr\lineheight*\initialparameter\c!n-\initialparameter\c!voffset\relax}
+\definemeasure[initial:n][\lineheight*\initialparameter\c!n - \strutdp]
 
 \setupinitial
   [\c!location=\v!text,
    \c!n=3,
  % \s!font=Bold sa 4,
-   \s!font=Bold at \v_typo_initials_auto_scale,
-   \c!distance=.125em,
+ % \s!font=Bold ht \measure{initial:n},
+   \s!font=Bold cp \measure{initial:n},
+   \c!distance=.125\emwidth,
    \c!hoffset=\zeropoint,
-   \c!voffset=-1ex,
+   \c!voffset=\v!line, % \dimexp\lineheight*\initialparameter\c!n-\lineheight\relax]
    \c!style=,
    \c!color=,
    \c!before=\blank]
@@ -85,6 +85,12 @@
   {\dontleavehmode
    \begingroup
    \edef\currentinitial{#1}%
+   \scratchcounter \initialparameter\c!n\relax
+   \scratchdistance\initialparameter\c!distance\relax
+   \scratchhoffset \initialparameter\c!hoffset \relax
+   \edef\p_voffset{\initialparameter\c!voffset}%
+   \scratchvoffset\dimexpr\ifx\p_voffset\v!line\scratchcounter\lineheight-\lineheight\else\p_voffset\fi\relax
+   \resetfontfeature % might be needed in more places
    \doifelsenothing{\initialparameter\c!style}
      {\definedfont[\initialparameter\s!font]}
      {\useinitialstyleparameter\c!style}%
@@ -92,15 +98,15 @@
    \ctxcommand{setinitial{
         location = "\initialparameter\c!location",
         enabled  = true,
-        n        = \number\initialparameter\c!n,
-        distance = \number\dimexpr\initialparameter\c!distance,
-        hoffset  = \number\dimexpr\initialparameter\c!hoffset,
-        voffset  = \number\dimexpr\initialparameter\c!voffset,
+        n        = \number\scratchcounter,
+        distance = \number\scratchdistance,
+        hoffset  = \number\scratchhoffset,
+        voffset  = \number\scratchvoffset,
         ma       = \the\attribute\colormodelattribute  ,
         ca       = \the\attribute\colorattribute       ,
         ta       = \the\attribute\transparencyattribute,
         font     = \fontid\font,
-        dynamic  = \number\attribute\zerocount,
+        dynamic  = \number\attribute\zerocount, % it's a bit over the top to support this here
    }}%
    \stopluacode
    \kern\zeropoint % we need a node
diff --git a/tex/generic/context/luatex/luatex-fonts-merged.lua b/tex/generic/context/luatex/luatex-fonts-merged.lua
index 649c5371d..ff4758068 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  : 08/26/13 16:41:50
+-- merge date  : 08/28/13 23:08:58
 
 do -- begin closure to overcome local limits and interference
 
@@ -3770,7 +3770,7 @@ function constructors.scale(tfmdata,specification)
   targetproperties.script=properties.script  or "dflt" 
   targetproperties.mode=properties.mode   or "base"
   local askedscaledpoints=scaledpoints
-  local scaledpoints,delta=constructors.calculatescale(tfmdata,scaledpoints)
+  local scaledpoints,delta=constructors.calculatescale(tfmdata,scaledpoints,nil,specification)
   local hdelta=delta
   local vdelta=delta
   target.designsize=parameters.designsize 
@@ -4286,11 +4286,11 @@ function constructors.hashinstance(specification,force)
     size=math.round(constructors.scaled(size,designsizes[hash]))
     specification.size=size
   end
-    if fallbacks then
-      return hash..' @ '..tostring(size)..' @ '..fallbacks
-    else
-      return hash..' @ '..tostring(size)
-    end
+  if fallbacks then
+    return hash..' @ '..tostring(size)..' @ '..fallbacks
+  else
+    return hash..' @ '..tostring(size)
+  end
 end
 function constructors.setname(tfmdata,specification) 
   if constructors.namemode=="specification" then
@@ -5705,7 +5705,7 @@ local function copytotfm(data)
     parameters.space_shrink=333
     parameters.x_height=400
     parameters.quad=1000
-    if italicangle then
+    if italicangle and italicangle~=0 then
       parameters.italicangle=italicangle
       parameters.italicfactor=math.cos(math.rad(90+italicangle))
       parameters.slant=- math.tan(italicangle*math.pi/180)
@@ -7996,7 +7996,7 @@ local function copytotfm(data,cache_id)
     parameters.quad=units   
     if spaceunits<2*units/5 then
     end
-    if italicangle then
+    if italicangle and italicangle~=0 then
       parameters.italicangle=italicangle
       parameters.italicfactor=math.cos(math.rad(90+italicangle))
       parameters.slant=- math.tan(italicangle*math.pi/180)