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Diffstat (limited to 'otfl-font-otc.lua')
| -rw-r--r-- | otfl-font-otc.lua | 240 |
1 files changed, 0 insertions, 240 deletions
diff --git a/otfl-font-otc.lua b/otfl-font-otc.lua deleted file mode 100644 index 5eb51f9..0000000 --- a/otfl-font-otc.lua +++ /dev/null @@ -1,240 +0,0 @@ -if not modules then modules = { } end modules ['font-otc'] = { - version = 1.001, - comment = "companion to font-otf.lua (context)", - author = "Hans Hagen, PRAGMA-ADE, Hasselt NL", - copyright = "PRAGMA ADE / ConTeXt Development Team", - license = "see context related readme files" -} - -local format, insert = string.format, table.insert -local type, next = type, next - --- we assume that the other otf stuff is loaded already - -local trace_loading = false trackers.register("otf.loading", function(v) trace_loading = v end) - -local fonts = fonts -local otf = fonts.otf - -local report_otf = logs.reporter("fonts","otf loading") - --- instead of "script = "DFLT", langs = { 'dflt' }" we now use wildcards (we used to --- have always); some day we can write a "force always when true" trick for other --- features as well --- --- we could have a tnum variant as well - --- In the userdata interface we can not longer tweak the loaded font as --- conveniently as before. For instance, instead of pushing extra data in --- in the table using the original structure, we now have to operate on --- the mkiv representation. And as the fontloader interface is modelled --- after fontforge we cannot change that one too much either. - -local extra_lists = { - tlig = { - { - endash = "hyphen hyphen", - emdash = "hyphen hyphen hyphen", - quotedblleft = "quoteleft quoteleft", - quotedblright = "quoteright quoteright", - quotedblleft = "grave grave", - quotedblright = "quotesingle quotesingle", - quotedblbase = "comma comma", - exclamdown = "exclam grave", - questiondown = "question grave", - guillemotleft = "less less", - guillemotright= "greater greater", - }, - }, - trep = { - { - [0x0022] = 0x201D, - [0x0027] = 0x2019, - [0x0060] = 0x2018, - }, - }, - anum = { - { -- arabic - [0x0030] = 0x0660, - [0x0031] = 0x0661, - [0x0032] = 0x0662, - [0x0033] = 0x0663, - [0x0034] = 0x0664, - [0x0035] = 0x0665, - [0x0036] = 0x0666, - [0x0037] = 0x0667, - [0x0038] = 0x0668, - [0x0039] = 0x0669, - }, - { -- persian - [0x0030] = 0x06F0, - [0x0031] = 0x06F1, - [0x0032] = 0x06F2, - [0x0033] = 0x06F3, - [0x0034] = 0x06F4, - [0x0035] = 0x06F5, - [0x0036] = 0x06F6, - [0x0037] = 0x06F7, - [0x0038] = 0x06F8, - [0x0039] = 0x06F9, - }, - }, -} - -local extra_features = { -- maybe just 1..n so that we prescribe order - tlig = { - { - features = { ["*"] = { ["*"] = true } }, - name = "ctx_tlig_1", - subtables = { "ctx_tlig_1_s" }, - type = "gsub_ligature", - flags = { }, - }, - }, - trep = { - { - features = { ["*"] = { ["*"] = true } }, - name = "ctx_trep_1", - subtables = { "ctx_trep_1_s" }, - type = "gsub_single", - flags = { }, - }, - }, - anum = { - { - features = { arab = { FAR = true, dflt = true } }, - name = "ctx_anum_1", - subtables = { "ctx_anum_1_s" }, - type = "gsub_single", - flags = { }, - }, - { - features = { arab = { FAR = true } }, - name = "ctx_anum_2", - subtables = { "ctx_anum_2_s" }, - type = "gsub_single", - flags = { }, - }, - }, -} - -local function enhancedata(data,filename,raw) - local luatex = data.luatex - local lookups = luatex.lookups - local sequences = luatex.sequences - local glyphs = data.glyphs - local indices = luatex.indices - local gsubfeatures = luatex.features.gsub - for kind, specifications in next, extra_features do - if gsub and gsub[kind] then - -- already present - else - local done = 0 - for s=1,#specifications do - local added = false - local specification = specifications[s] - local features, subtables = specification.features, specification.subtables - local name, type, flags = specification.name, specification.type, specification.flags - local full = subtables[1] - local list = extra_lists[kind][s] - if type == "gsub_ligature" then - -- inefficient loop - for unicode, index in next, indices do - local glyph = glyphs[index] - local ligature = list[glyph.name] - if ligature then - if glyph.slookups then - glyph.slookups [full] = { "ligature", ligature, glyph.name } - else - glyph.slookups = { [full] = { "ligature", ligature, glyph.name } } - end - done, added = done+1, true - end - end - elseif type == "gsub_single" then - -- inefficient loop - for unicode, index in next, indices do - local glyph = glyphs[index] - local r = list[unicode] - if r then - local replacement = indices[r] - if replacement and glyphs[replacement] then - if glyph.slookups then - glyph.slookups [full] = { "substitution", glyphs[replacement].name } - else - glyph.slookups = { [full] = { "substitution", glyphs[replacement].name } } - end - done, added = done+1, true - end - end - end - end - if added then - sequences[#sequences+1] = { - chain = 0, - features = { [kind] = features }, - flags = flags, - name = name, - subtables = subtables, - type = type, - } - -- register in metadata (merge as there can be a few) - if not gsubfeatures then - gsubfeatures = { } - luatex.features.gsub = gsubfeatures - end - local k = gsubfeatures[kind] - if not k then - k = { } - gsubfeatures[kind] = k - end - for script, languages in next, features do - local kk = k[script] - if not kk then - kk = { } - k[script] = kk - end - for language, value in next, languages do - kk[language] = value - end - end - end - end - if done > 0 then - if trace_loading then - report_otf("enhance: registering %s feature (%s glyphs affected)",kind,done) - end - end - end - end -end - -otf.enhancers.register("check extra features",enhancedata) - -local features = otf.tables.features - -features['tlig'] = 'TeX Ligatures' -features['trep'] = 'TeX Replacements' -features['anum'] = 'Arabic Digits' - -local registerbasesubstitution = otf.features.registerbasesubstitution - -registerbasesubstitution('tlig') -registerbasesubstitution('trep') -registerbasesubstitution('anum') - --- the functionality is defined elsewhere - -local initializers = fonts.initializers -local common_initializers = initializers.common -local base_initializers = initializers.base.otf -local node_initializers = initializers.node.otf - -base_initializers.equaldigits = common_initializers.equaldigits -node_initializers.equaldigits = common_initializers.equaldigits - -base_initializers.lineheight = common_initializers.lineheight -node_initializers.lineheight = common_initializers.lineheight - -base_initializers.compose = common_initializers.compose -node_initializers.compose = common_initializers.compose |