/usr/share/texlive/texmf-dist/tex/luatex/luaotfload/otfl-font-otc.lua is in texlive-luatex 2012.20120611-5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 | 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 otf = fonts.otf
local tfm = fonts.tfm
-- 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
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 = { { scripts = { { script = "*", langs = { "*" }, } }, tag = "tlig", comment = "added bij mkiv" }, },
name = "ctx_tlig_1",
subtables = { { name = "ctx_tlig_1_s" } },
type = "gsub_ligature",
flags = { },
},
},
trep = {
{
features = { { scripts = { { script = "*", langs = { "*" }, } }, tag = "trep", comment = "added bij mkiv" }, },
name = "ctx_trep_1",
subtables = { { name = "ctx_trep_1_s" } },
type = "gsub_single",
flags = { },
},
},
anum = {
{
features = { { scripts = { { script = "arab", langs = { "dflt", "ARA" }, } }, tag = "anum", comment = "added bij mkiv" }, },
name = "ctx_anum_1",
subtables = { { name = "ctx_anum_1_s" } },
type = "gsub_single",
flags = { },
},
{
features = { { scripts = { { script = "arab", langs = { "FAR" }, } }, tag = "anum", comment = "added bij mkiv" }, },
name = "ctx_anum_2",
subtables = { { name = "ctx_anum_2_s" } },
type = "gsub_single",
flags = { },
},
},
}
fonts.otf.enhancers["add some missing characters"] = function(data,filename)
-- todo
end
fonts.otf.enhancers["enrich with features"] = function(data,filename)
-- could be done elsewhere (true can be #)
local used = { }
for i=1,#otf.glists do
local g = data[otf.glists[i]]
if g then
for i=1,#g do
local f = g[i].features
if f then
for i=1,#f do
local t = f[i].tag
if t then used[t] = true end
end
end
end
end
end
--
local glyphs = data.glyphs
local indices = data.map.map
data.gsub = data.gsub or { }
for kind, specifications in next, extra_features do
if not used[kind] then
local done = 0
for s=1,#specifications do
local added = false
local specification = specifications[s]
local list = extra_lists[kind][s]
local name = specification.name .. "_s"
if specification.type == "gsub_ligature" then
for unicode, index in next, indices do
local glyph = glyphs[index]
local ligature = list[glyph.name]
if ligature then
local o = glyph.lookups or { }
-- o[name] = { "ligature", ligature, glyph.name }
o[name] = {
{
["type"] = "ligature",
["specification"] = {
char = glyph.name,
components = ligature,
}
}
}
glyph.lookups, done, added = o, done+1, true
end
end
elseif specification.type == "gsub_single" then
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
local o = glyph.lookups or { }
-- o[name] = { { "substitution", glyphs[replacement].name } }
o[name] = {
{
["type"] = "substitution",
["specification"] = {
variant = glyphs[replacement].name,
}
}
}
glyph.lookups, done, added = o, done+1, true
end
end
end
end
if added then
insert(data.gsub,s,table.fastcopy(specification)) -- right order
end
end
if done > 0 then
if trace_loading then
logs.report("load otf","enhance: registering %s feature (%s glyphs affected)",kind,done)
end
end
end
end
end
otf.tables.features['tlig'] = 'TeX Ligatures'
otf.tables.features['trep'] = 'TeX Replacements'
otf.tables.features['anum'] = 'Arabic Digits'
otf.features.register_base_substitution('tlig')
otf.features.register_base_substitution('trep')
otf.features.register_base_substitution('anum')
-- the functionality is defined elsewhere
fonts.initializers.base.otf.equaldigits = fonts.initializers.common.equaldigits
fonts.initializers.node.otf.equaldigits = fonts.initializers.common.equaldigits
fonts.initializers.base.otf.lineheight = fonts.initializers.common.lineheight
fonts.initializers.node.otf.lineheight = fonts.initializers.common.lineheight
fonts.initializers.base.otf.compose = fonts.initializers.common.compose
fonts.initializers.node.otf.compose = fonts.initializers.common.compose
|