2 -- luatexja/ltj-otf.lua
7 luatexja.load_module('base'); local ltjb = luatexja.base
8 luatexja.load_module('jfont'); local ltjf = luatexja.jfont
9 luatexja.load_module('rmlgbm'); local ltjr = luatexja.rmlgbm
10 luatexja.load_module('charrange'); local ltjc = luatexja.charrange
11 luatexja.load_module('direction'); local ltjd = luatexja.direction
12 luatexja.load_module('stack'); local ltjs = luatexja.stack
14 local id_glyph = node.id('glyph')
15 local id_whatsit = node.id('whatsit')
16 local sid_user = node.subtype('user_defined')
18 local setfield = node.direct.setfield
19 local getfield = node.direct.getfield
20 local getid = node.direct.getid
21 local getfont = node.direct.getfont
22 local getchar = node.direct.getchar
23 local getsubtype = node.direct.getsubtype
25 local to_node = node.direct.tonode
26 local to_direct = node.direct.todirect
28 local node_new = node.direct.new
29 local node_remove = node.direct.remove
30 local node_next = node.direct.getnext
31 local node_free = node.direct.free
32 local has_attr = node.direct.has_attribute
33 local set_attr = node.direct.set_attribute
34 local unset_attr = node.direct.unset_attribute
35 local node_insert_after = node.direct.insert_after
36 local node_write = node.direct.write
37 local node_traverse_id = node.direct.traverse_id
40 local attr_curjfnt = luatexbase.attributes['ltj@curjfnt']
41 local attr_curtfnt = luatexbase.attributes['ltj@curtfnt']
42 local attr_yablshift = luatexbase.attributes['ltj@yablshift']
43 local attr_ykblshift = luatexbase.attributes['ltj@ykblshift']
44 local attr_tablshift = luatexbase.attributes['ltj@tablshift']
45 local attr_tkblshift = luatexbase.attributes['ltj@tkblshift']
46 local lang_ja = luatexja.lang_ja
47 local identifiers = fonts.hashes.identifiers
49 local ltjf_font_metric_table = ltjf.font_metric_table
50 local ltjf_font_extra_info = ltjf.font_extra_info
51 local ltjf_find_char_class = ltjf.find_char_class
52 local ltjr_cidfont_data = ltjr.cidfont_data
53 local ltjc_is_ucs_in_japanese_char = ltjc.is_ucs_in_japanese_char
54 local ltjd_get_dir_count = ltjd.get_dir_count
55 local dir_tate = luatexja.dir_table.dir_tate
57 luatexja.userid_table.OTF = luatexbase.newuserwhatsitid('char_by_cid', 'luatexja')
58 local OTF = luatexja.userid_table.OTF
59 local tex_get_attr = tex.getattribute
62 local cache_outdate_fn = function (t) return t.version~=cache_ver end
63 local ivd_aj1 = ltjb.load_cache('ltj-ivd_aj1',cache_outdate_fn)
64 if not ivd_aj1 then -- make cache
65 ivd_aj1 = require('ltj-ivd_aj1.lua')
66 ltjb.save_cache_luc('ltj-ivd_aj1', ivd_aj1)
70 local function get_ucs_from_rmlgbm(c)
71 local v = (ivd_aj1 and ivd_aj1.table_ivd_aj1[c])
73 for i,w in pairs(ltjr_cidfont_data["Adobe-Japan1"].descriptions) do
74 if w.index==v then v = i; break end
78 if v>=0x200000 then -- table
79 local curjfnt_num = tex_get_attr((ltjd_get_dir_count()==dir_tate)
80 and attr_curtfnt or attr_curjfnt)
81 local curjfnt = identifiers[curjfnt_num].resources
82 local base, ivs = v % 0x200000, 0xE00FF + math.floor(v/0x200000)
83 curjfnt = curjfnt and curjfnt.variants
84 curjfnt = curjfnt and curjfnt[ivs]
85 return curjfnt and curjfnt[base] or base
86 elseif v<0xF0000 then -- 素直に Unicode にマップ可能
88 else -- privete use area
89 local r, aj = nil, ltjr_cidfont_data["Adobe-Japan1"]
90 -- 先に ltj_vert_table を見る
91 for i,w in pairs(aj.shared.ltj_vert_table) do
92 if w==v then r=i; break end
95 -- なければ ToUnicode から引く
96 local w = aj.characters[v].tounicode -- must be non-nil!
97 local i = string.len(w)
101 i,w = tonumber(string.sub(w,1,4),16), tonumber(string.sub(w,-4),16)
102 if (w>=0xD800) and (w<=0xDB7F) and (i>=0xDC00) and (i<=0xDFFF) then -- Surrogate pair
103 r = (w-0xD800)*0x400 + (i-0xDC00)
109 if aj.shared.ltj_vert_table[r] then
111 local curjfnt_num = tex_get_attr((ltjd_get_dir_count()==dir_tate)
112 and attr_curtfnt or attr_curjfnt)
113 local t = identifiers[curjfnt_num]
114 if t.resources.sequences then
115 for _,i in pairs(t.resources.sequences) do
116 if (i.order[1]=='vert' or i.order[1]=='vrt2')
117 and i.type == 'gsub_single' and i.steps then
118 for _,j in pairs(i.steps) do
119 if type(j)=='table' then
120 if type(j.coverage)=='table' then
121 for i,k in pairs(j.coverage) do
122 if i==r then return k end
135 -- Append a whatsit node to the list.
136 -- This whatsit node will be extracted to a glyph_node
137 local function append_jglyph(char)
138 local p = node_new(id_whatsit,sid_user)
139 setfield(p, 'user_id', OTF)
140 setfield(p, 'type', 100)
141 setfield(p, 'value', char)
149 if ltjd_get_dir_count()==dir_tate then
150 local curjfnt_num = tex_get_attr((ltjd_get_dir_count()==dir_tate)
151 and attr_curtfnt or attr_curjfnt)
152 local t = identifiers[curjfnt_num]
153 if t.resources.sequences then
154 for _,i in pairs(t.resources.sequences) do
155 if (i.order[1]=='vert' or i.order[1]=='vrt2')
156 and i.type == 'gsub_single' and i.steps then
157 for _,j in pairs(i.steps) do
158 if type(j)=='table' then
159 if type(j.coverage)=='table' then
160 for i,k in pairs(j.coverage) do
161 if i==char then return append_jglyph(k) end
170 return append_jglyph(char)
177 if key==0 then return append_jglyph(0) end
178 local curjfnt_num = tex_get_attr((ltjd_get_dir_count()==dir_tate)
179 and attr_curtfnt or attr_curjfnt)
180 local curjfnt = identifiers[curjfnt_num]
181 local cidinfo = curjfnt.resources.cidinfo
183 cidinfo.ordering ~= "Japan1" and
184 cidinfo.ordering ~= "GB1" and
185 cidinfo.ordering ~= "CNS1" and
186 cidinfo.ordering ~= "Korea1" and
187 cidinfo.ordering ~= "KR" then
188 -- ltjb.package_warning('luatexja-otf',
189 -- 'Current Japanese font (or other CJK font) "'
190 -- ..curjfnt.psname..'" is not a CID-Keyed font (Adobe-Japan1 etc.)')
191 return append_jglyph(get_ucs_from_rmlgbm(key))
194 for i,v in pairs(curjfnt.shared.rawdata.descriptions) do
195 if v.index==key then char = i; break end
198 ltjb.package_warning('luatexja-otf',
199 'Current Japanese font (or other CJK font) "'
200 ..curjfnt.psname..'" does not have the specified CID character ('
201 ..tostring(key)..')',
202 'Use a font including the specified CID character.')
205 return append_jglyph(char)
210 local function extract(head)
211 head = to_direct(head)
213 local is_dir_tate = ltjs.list_dir == dir_tate
214 local attr_ablshift = is_dir_tate and attr_tablshift or attr_yablshift
215 local attr_kblshift = is_dir_tate and attr_tkblshift or attr_ykblshift
216 local attr_curfnt = is_dir_tate and attr_curtfnt or attr_curjfnt
218 if getid(p)==id_whatsit then
219 if getsubtype(p)==sid_user then
220 local puid = getfield(p, 'user_id')
222 --if puid==OTF or puid==VSR then
223 local g = node_new(id_glyph)
224 setfield(g, 'subtype', 0)
225 setfield(g, 'char', getfield(p, 'value'))
226 local v = has_attr(p, attr_curfnt); setfield(g, 'font',v)
228 setfield(g, 'lang', lang_ja)
229 set_attr(g, attr_kblshift, has_attr(p, attr_kblshift))
231 -- set_attr(g, attr_ablshift, has_attr(p, attr_ablshift))
233 head = node_insert_after(head, p, g)
234 head = node_remove(head, p)
244 ltjb.add_to_callback('hpack_filter', extract,'ltj.otf',
245 luatexbase.priority_in_callback('hpack_filter', 'ltj.main'))
246 ltjb.add_to_callback('pre_linebreak_filter', extract,'ltj.otf',
247 luatexbase.priority_in_callback('pre_linebreak_filter', 'ltj.main'))
248 -- additional callbacks
249 -- 以下は,LuaTeX-ja に用意された callback のサンプルになっている.
250 -- JFM の文字クラスの指定の所で,"AJ1-xxx" 形式での指定を可能とした.
251 -- これらの文字指定は,和文フォント定義ごとに,それぞれのフォントの
252 -- CID <-> グリフ 対応状況による変換テーブルが用意される.
254 -- 和文フォント読み込み時に,CID -> unicode 対応をとっておく.
255 local function cid_to_char(fmtable, fn)
256 local fi = identifiers[fn]
257 local fe = ltjf_font_extra_info[fn]
258 if (fi.resources and fi.resources.cidinfo and fi.resources.cidinfo.ordering == "Japan1" )
259 and (fe and fe.unicodes) then
260 for i, v in pairs(fmtable.chars) do
261 local j = string.match(i, "^AJ1%-([0-9]*)")
263 j = tonumber(fe.unicodes['Japan1.'..tostring(j)])
265 fmtable.cid_char_type = fmtable.cid_char_type or {}
266 fmtable.cid_char_type[j] = v
273 luatexbase.add_to_callback("luatexja.define_jfont",
274 cid_to_char, "ltj.otf.define_jfont", 1)
275 -- 既に読み込まれているフォントに対しても,同じことをやらないといけない
276 for fn, v in pairs(ltjf_font_metric_table) do
277 ltjf_font_metric_table[fn] = cid_to_char(v, fn)
281 local function cid_set_char_class(arg, fmtable, char)
282 if arg~=0 then return arg
283 elseif fmtable.cid_char_type then
284 return fmtable.cid_char_type[char] or 0
288 luatexbase.add_to_callback("luatexja.find_char_class",
289 cid_set_char_class, "ltj.otf.find_char_class", 1)
292 local function enable_ivs()
293 ltjb.package_warning('luatexja-otf',
294 'luatexja.otf.enable_ivs() has now no effect.')
296 local disable_ivs = enable_ivs
299 append_jglyph = append_jglyph,
300 enable_ivs = enable_ivs, -- 隠し機能: IVS
301 disable_ivs = disable_ivs, -- 隠し機能: IVS
302 cid = cid, utf = utf,