4 luatexbase.provides_module({
5 name = 'luatexja.rmlgbm',
8 description = 'Definitions of non-embedded Japanese (or other CJK) fonts',
10 module('luatexja.rmlgbm', package.seeall)
11 local err, warn, info, log = luatexbase.errwarinf(_NAME)
13 luatexja.load_module('base'); local ltjb = luatexja.base
15 local round = tex.round
16 local cidfont_data = {}
17 local cache_chars = {}
18 local taux_dir = 'luatex-cache/luatexja'
20 localdir = file.join(kpse.expand_var("$TEXMFVAR"), aux_dir),
21 systemdir = file.join(kpse.expand_var("$TEXMFSYSVAR"), aux_dir),
25 local function read_cid_font(cid_name)
26 local v = "ltj-cid-" .. string.lower(cid_name) .. ".lua"
27 local localpath = file.join(path.localdir, v)
28 local systempath = file.join(path.systemdir, v)
29 local kpsefound = kpse.find_file(v)
30 if kpsefound and file.isreadable(kpsefound) then
31 cidfont_data[cid_name] = require(kpsefound)
32 cache_chars[cid_name] = { [655360] = cidfont_data[cid_name].characters }
33 for i,v in pairs(cidfont_data[cid_name].characters) do
34 if not v.width then v.width = 655360 end
36 elseif file.isreadable(localpath) then
37 cidfont_data[cid_name] = require(localpath)
38 cache_chars[cid_name] = { [655360] = cidfont_data[cid_name].characters }
39 for i,v in pairs(cidfont_data[cid_name].characters) do
40 if not v.width then v.width = 655360 end
42 elseif file.isreadable(systempath) then
43 cidfont_data[cid_name] = require(systempath)
44 cache_chars[cid_name] = { [655360] = cidfont_data[cid_name].characters }
45 for i,v in pairs(cidfont_data[cid_name].characters) do
46 if not v.width then v.width = 655360 end
53 local function mk_rml(name, size, id, cid_name)
54 local specification = fonts.define.analyze(name,size)
55 specification = fonts.define.specify[':'](specification)
56 local features = specification.features.normal
60 local s = cidfont_data[cid_name]
61 for k, v in pairs(s) do
65 fontdata.characters = nil
66 cachedata.characters = nil
67 fontdata.unicodes = nil
69 cachedata.shared = nil
72 local shared = cachedata.shared
73 for k, v in pairs(s.shared) do
77 shared.set_dynamics = fonts.otf.set_dynamics
78 shared.processes, shared.features = fonts.otf.set_features(cachedata,fonts.define.check(features,fonts.otf.features.default))
81 -- characters & scaling
82 if size < 0 then size = -size * 655.36 end
83 local scale = size / 655360
84 local def_height = round(0.88 * size) -- character's default height (optimized for jfm-ujis.lua)
85 local def_depth = round(0.12 * size) -- and depth.
86 if not cache_chars[cid_name][size] then
87 cache_chars[cid_name][size] = {}
88 for k, v in pairs(cache_chars[cid_name][655360]) do
89 cache_chars[cid_name][size][k] = {
90 index = v.index, width = round(v.width * scale),
91 height = def_height, depth = def_depth, tounicode = v.tounicode,
95 fontdata.characters = cache_chars[cid_name][size]
96 cachedata.characters = cache_chars[cid_name][size]
99 for k, v in pairs(s.parameters) do
100 parameters[k] = v * scale
102 fontdata.parameters = parameters; cachedata.parameters = parameters
103 fontdata.ascender = fontdata.ascender * scale; cachedata.ascender = fontdata.ascender
104 fontdata.descender = fontdata.descender * scale; cachedata.descender = fontdata.descender
105 fontdata.factor = fontdata.factor * scale; cachedata.factor = fontdata.factor
106 fontdata.hfactor = fontdata.hfactor * scale; cachedata.hfactor = fontdata.hfactor
107 fontdata.vfactor = fontdata.vfactor * scale; cachedata.vfactor = fontdata.vfactor
108 fontdata.size = size; cachedata.size = size
112 if features.slant then
113 fontdata.slant = features.slant*1000; cachedata.slant = fontdata.slant
114 var = var .. 's' .. tostring(features.slant)
116 if features.extend then
117 fontdata.extend = features.extend*1000; cachedata.extend = fontdata.extend
118 var = var .. 'x' .. tostring(features.extend)
120 fontdata.name = specification.name .. size .. var; cachedata.name = fontdata.name
121 fontdata.fullname = specification.name .. var; cachedata.fullname = fontdata.fullname
122 fontdata.psname = specification.name; cachedata.psname = fontdata.psname
123 fonts.ids[id] = cachedata
128 local dr_orig = fonts.define.read
129 function fonts.define.read(name, size, id)
130 local p = utf.find(name, ":") or utf.len(name)+1
131 if utf.sub(name, 1, p-1) == 'psft' then
132 local cid_reg, cid_order, cid_name
133 local s = "Adobe-Japan1-6"
134 local basename = utf.sub(name,p+1)
135 local p = utf.find(basename, ":")
137 local xname = utf.sub(basename, p+1)
140 local q = utf.find(xname, ";", p+1) or utf.len(xname)+1
141 if utf.sub(xname, p, p+3)=='cid=' and q>p+4 then
142 s = utf.sub(xname, p+4, q-1)
144 if utf.len(xname)+1==q then p = nil else p = q + 1 end
147 cid_reg, cid_order = string.match(s, "^(.-)%-(.-)%-(%d-)$")
149 cid_reg, cid_order = string.match(s, "^(.-)%-(.-)$")
151 cid_name = cid_reg .. '-' .. cid_order
152 if not cidfont_data[cid_name] then
153 read_cid_font(cid_name)
154 if not cidfont_data[cid_name] then
155 ltjb.package_error('luatexja',
156 "bad cid key `" .. s .. "'",
157 "I couldn't find any non-embedded font information for the CID\n" ..
158 '`' .. s .. "'. For now, I'll use `Adobe-Japan1-6'.\n"..
159 'Please contact the LuaTeX-ja project team.')
160 cid_name = "Adobe-Japan1"
163 return mk_rml(basename, size, id, cid_name)
165 return dr_orig(name, size, id)
170 read_cid_font("Adobe-Japan1")