diff options
Diffstat (limited to 'tex/context/base/font-afm.lua')
| -rw-r--r-- | tex/context/base/font-afm.lua | 70 |
1 files changed, 35 insertions, 35 deletions
diff --git a/tex/context/base/font-afm.lua b/tex/context/base/font-afm.lua index b8c2eea59..23cc7421e 100644 --- a/tex/context/base/font-afm.lua +++ b/tex/context/base/font-afm.lua @@ -19,7 +19,7 @@ away.</p> fonts = fonts or { } fonts.afm = fonts.afm or { } -fonts.afm.version = 1.21 -- incrementing this number one up will force a re-cache +fonts.afm.version = 1.22 -- incrementing this number one up will force a re-cache fonts.afm.syncspace = true -- when true, nicer stretch values fonts.afm.enhance_data = true -- best leave this set to true fonts.afm.trace_features = false @@ -124,7 +124,7 @@ do end chr.index = ind elseif k == 'WX' then - chr.wx = v + chr.width = v elseif k == 'N' then str = v elseif k == 'B' then @@ -304,9 +304,10 @@ function fonts.afm.add_ligatures(afmdata,ligatures) for _, b in pairs(v) do two, three = b[1], b[2] if two and three and chars[two] and chars[three] then - if one[ligatures] then - if not one.ligatures[two] then - one[ligatures][two] = three + local ol = one[ligatures] + if ol then + if not ol[two] then -- was one.ligatures ... bug + ol[two] = three end else one[ligatures] = { [two] = three } @@ -330,8 +331,9 @@ function fonts.afm.add_kerns(afmdata) if v.kerns then local k = { } for complex,simple in pairs(characters.uncomposed[what]) do - if k[simple] and not k[complex] then - k[complex] = k[simple] + local ks = k[simple] + if ks and not k[complex] then + k[complex] = ks end end if not table.is_empty(k) then @@ -363,7 +365,21 @@ end --ldx]]-- -- once we have otf sorted out (new format) we can try to make the afm --- cache similar to it +-- cache similar to it (similar tables) + +function fonts.afm.add_dimensions(data) -- we need to normalize afm to otf i.e. indexed table instead of name + if data then + for n, d in pairs(data.characters) do + local bb = d.boundingbox + if bb then + local ht, dp = bb[4], -bb[2] + if ht ~= 0 then d.height = ht end + if dp ~= 0 then d.depth = dp end + end + d.name = n + end + end +end function fonts.afm.copy_to_tfm(data) if data and data.characters then @@ -372,16 +388,7 @@ function fonts.afm.copy_to_tfm(data) local characters, parameters = tfm.characters, tfm.parameters if afmcharacters then for k, v in pairs(afmcharacters) do - local b, u = v.boundingbox, v.unicode - characters[u] = { - height = b[4], - depth = - b[2], - width = v.wx, - boundingbox = b, - index = v.index, - name = k, - unicode = u, - } + characters[v.unicode] = { description = v } end end tfm.encodingbytes = data.encodingbytes or 2 @@ -400,15 +407,15 @@ function fonts.afm.copy_to_tfm(data) local spaceunits = 500 tfm.spacer = "500 units" if data.isfixedpitch then - if afmcharacters['space'] and afmcharacters['space'].wx then - spaceunits, tfm.spacer = afmcharacters['space'].wx, "space" - elseif afmcharacters['emdash'] and afmcharacters['emdash'].wx then -- funny default - spaceunits, tfm.spacer = afmcharacters['emdash'].wx, "emdash" + if afmcharacters['space'] and afmcharacters['space'].width then + spaceunits, tfm.spacer = afmcharacters['space'].width, "space" + elseif afmcharacters['emdash'] and afmcharacters['emdash'].width then -- funny default + spaceunits, tfm.spacer = afmcharacters['emdash'].width, "emdash" elseif data.charwidth then spaceunits, tfm.spacer = data.charwidth, "charwidth" end - elseif afmcharacters['space'] and afmcharacters['space'].wx then - spaceunits, tfm.spacer = afmcharacters['space'].wx, "space" + elseif afmcharacters['space'] and afmcharacters['space'].width then + spaceunits, tfm.spacer = afmcharacters['space'].width, "space" elseif data.charwidth then spaceunits, tfm.spacer = data.charwidth, "charwidth variable" end @@ -433,24 +440,16 @@ function fonts.afm.copy_to_tfm(data) parameters[3] = 0 parameters[4] = 0 elseif fonts.afm.syncspace then - -- too little - -- parameters[3] = .2*spaceunits -- space_stretch - -- parameters[4] = .1*spaceunits -- space_shrink - -- taco's suggestion: - -- parameters[3] = .4*spaceunits -- space_stretch - -- parameters[4] = .1*spaceunits -- space_shrink - -- knuthian values: (for the moment compatible) parameters[3] = spaceunits/2 -- space_stretch parameters[4] = spaceunits/3 -- space_shrink end if data.xheight and data.xheight > 0 then parameters[5] = data.xheight elseif afmcharacters['x'] and afmcharacters['x'].height then - parameters[5] = afmcharacters['x'].height + parameters[5] = afmcharacters['x'].height or 0 end local fd = data.fontdimens - if fd and fd[8] and fd[9] and fd[10] then - -- we're dealing with a tex math font + if fd and fd[8] and fd[9] and fd[10] then -- math for k,v in pairs(fd) do parameters[k] = v end @@ -556,6 +555,7 @@ function fonts.afm.afm_to_tfm(specification) if not tfmdata then local afmdata = fonts.afm.load(afmname) if not table.is_empty(afmdata) then + fonts.afm.add_dimensions(afmdata) tfmdata = fonts.afm.copy_to_tfm(afmdata) if not table.is_empty(tfmdata) then tfmdata.shared = tfmdata.shared or { } @@ -647,7 +647,7 @@ function fonts.afm.features.prepare_kerns(tfmdata,kerns,value) if value then local charlist = tfmdata.shared.afmdata.characters for _, chr in pairs(tfmdata.characters) do - local newkerns = charlist[chr.name][kerns] + local newkerns = charlist[chr.description.name][kerns] if newkerns then local t = chr.kerns or { } for k,v in pairs(newkerns) do |