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_find_char_class = ltjf.find_char_class
51 local ltjr_cidfont_data = ltjr.cidfont_data
52 local ltjc_is_ucs_in_japanese_char = ltjc.is_ucs_in_japanese_char
53 local ltjd_get_dir_count = ltjd.get_dir_count
54 local dir_tate = luatexja.dir_table.dir_tate
56 luatexja.userid_table.OTF = luatexbase.newuserwhatsitid('char_by_cid', 'luatexja')
57 local OTF = luatexja.userid_table.OTF
58 local tex_get_attr = tex.getattribute
61 local cache_outdate_fn = function (t) return t.version~=cache_ver end
62 local ivd_aj1 = ltjb.load_cache('ltj-ivd_aj1',cache_outdate_fn)
63 if not ivd_aj1 then -- make cache
64 ivd_aj1 = require('ltj-ivd_aj1.lua')
65 ltjb.save_cache_luc('ltj-ivd_aj1', ivd_aj1)
69 local function get_ucs_from_rmlgbm(c)
70 local v = (ivd_aj1 and ivd_aj1.table_ivd_aj1[c])
72 for i,w in pairs(ltjr_cidfont_data["Adobe-Japan1"].descriptions) do
73 if w.index==v then v = i; break end
77 if v>=0x200000 then -- table
78 local curjfnt_num = tex_get_attr((ltjd_get_dir_count()==dir_tate)
79 and attr_curtfnt or attr_curjfnt)
80 local curjfnt = identifiers[curjfnt_num].resources
81 local base, ivs = v % 0x200000, 0xE00FF + math.floor(v/0x200000)
82 curjfnt = curjfnt and curjfnt.variants
83 curjfnt = curjfnt and curjfnt[ivs]
84 return curjfnt and curjfnt[base] or base
85 elseif v<0xF0000 then -- 素直に Unicode にマップ可能
87 else -- privete use area
88 local r, aj = nil, ltjr_cidfont_data["Adobe-Japan1"]
89 -- 先に ltj_vert_table を見る
90 for i,w in pairs(aj.shared.ltj_vert_table) do
91 if w==v then r=i; break end
94 -- なければ ToUnicode から引く
95 local w = aj.characters[v].tounicode -- must be non-nil!
96 local i = string.len(w)
100 i,w = tonumber(string.sub(w,1,4),16), tonumber(string.sub(w,-4),16)
101 if (w>=0xD800) and (w<=0xDB7F) and (i>=0xDC00) and (i<=0xDFFF) then -- Surrogate pair
102 r = (w-0xD800)*0x400 + (i-0xDC00)
108 if aj.shared.ltj_vert_table[r] then
110 local curjfnt_num = tex_get_attr((ltjd_get_dir_count()==dir_tate)
111 and attr_curtfnt or attr_curjfnt)
112 local t = identifiers[curjfnt_num]
113 if t.resources.sequences then
114 for _,i in pairs(t.resources.sequences) do
115 if (i.order[1]=='vert' or i.order[1]=='vrt2')
116 and i.type == 'gsub_single' and i.steps then
117 for _,j in pairs(i.steps) do
118 if type(j)=='table' then
119 if type(j.coverage)=='table' then
120 for i,k in pairs(j.coverage) do
121 if i==r then return k end
134 -- Append a whatsit node to the list.
135 -- This whatsit node will be extracted to a glyph_node
136 local function append_jglyph(char)
137 local p = node_new(id_whatsit,sid_user)
138 setfield(p, 'user_id', OTF)
139 setfield(p, 'type', 100)
140 setfield(p, 'value', char)
148 if ltjd_get_dir_count()==dir_tate then
149 local curjfnt_num = tex_get_attr((ltjd_get_dir_count()==dir_tate)
150 and attr_curtfnt or attr_curjfnt)
151 local t = identifiers[curjfnt_num]
152 if t.resources.sequences then
153 for _,i in pairs(t.resources.sequences) do
154 if (i.order[1]=='vert' or i.order[1]=='vrt2')
155 and i.type == 'gsub_single' and i.steps then
156 for _,j in pairs(i.steps) do
157 if type(j)=='table' then
158 if type(j.coverage)=='table' then
159 for i,k in pairs(j.coverage) do
160 if i==char then return append_jglyph(k) end
169 return append_jglyph(char)
176 if key==0 then return append_jglyph(0) end
177 local curjfnt_num = tex_get_attr((ltjd_get_dir_count()==dir_tate)
178 and attr_curtfnt or attr_curjfnt)
179 local curjfnt = identifiers[curjfnt_num]
180 local cidinfo = curjfnt.resources.cidinfo
182 cidinfo.ordering ~= "Japan1" and
183 cidinfo.ordering ~= "GB1" and
184 cidinfo.ordering ~= "CNS1" and
185 cidinfo.ordering ~= "Korea1" and
186 cidinfo.ordering ~= "KR" then
187 -- ltjb.package_warning('luatexja-otf',
188 -- 'Current Japanese font (or other CJK font) "'
189 -- ..curjfnt.psname..'" is not a CID-Keyed font (Adobe-Japan1 etc.)')
190 return append_jglyph(get_ucs_from_rmlgbm(key))
192 local char = ltjf_font_metric_table[curjfnt_num].cid_to_uni[key]
194 ltjb.package_warning('luatexja-otf',
195 '"' ..curjfnt.psname..'" does not have CID character '
197 'Use a font including the specified CID character.')
200 return append_jglyph(char)
205 local function extract(head)
206 head = to_direct(head)
208 local is_dir_tate = ltjs.list_dir == dir_tate
209 local attr_ablshift = is_dir_tate and attr_tablshift or attr_yablshift
210 local attr_kblshift = is_dir_tate and attr_tkblshift or attr_ykblshift
211 local attr_curfnt = is_dir_tate and attr_curtfnt or attr_curjfnt
213 if getid(p)==id_whatsit then
214 if getsubtype(p)==sid_user then
215 local puid = getfield(p, 'user_id')
217 --if puid==OTF or puid==VSR then
218 local g = node_new(id_glyph)
219 setfield(g, 'subtype', 0)
220 setfield(g, 'char', getfield(p, 'value'))
221 local v = has_attr(p, attr_curfnt); setfield(g, 'font',v)
223 setfield(g, 'lang', lang_ja)
224 set_attr(g, attr_kblshift, has_attr(p, attr_kblshift))
226 -- set_attr(g, attr_ablshift, has_attr(p, attr_ablshift))
228 head = node_insert_after(head, p, g)
229 head = node_remove(head, p)
239 ltjb.add_to_callback('hpack_filter', extract,'ltj.otf',
240 luatexbase.priority_in_callback('hpack_filter', 'ltj.main'))
241 ltjb.add_to_callback('pre_linebreak_filter', extract,'ltj.otf',
242 luatexbase.priority_in_callback('pre_linebreak_filter', 'ltj.main'))
243 -- additional callbacks
244 -- 以下は,LuaTeX-ja に用意された callback のサンプルになっている.
245 -- 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.
246 -- 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
247 -- CID <-> グリフ 対応状況による変換テーブルが用意される.
249 -- 和文フォント読み込み時に,CID -> unicode 対応をとっておく.
250 local function cid_to_uni(fmtable, fn)
251 local fi = identifiers[fn]
252 local t = {}; fmtable.cid_to_uni = t
253 for i,v in pairs(fi.shared.rawdata.descriptions) do t[v.index] = i end
254 if fi.resources and fi.resources.cidinfo
255 and fi.resources.cidinfo.ordering == "Japan1" then
256 for i, v in pairs(fmtable.chars) do
257 local j = string.match(i, "^AJ1%-([0-9]*)")
261 fmtable.cid_char_type = fmtable.cid_char_type or {}
262 fmtable.cid_char_type[j] = v
269 luatexbase.add_to_callback("luatexja.define_jfont",
270 cid_to_uni, "ltj.otf.define_jfont", 1)
271 -- 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
272 for fn, v in pairs(ltjf_font_metric_table) do
273 ltjf_font_metric_table[fn] = cid_to_uni(v, fn)
277 local function cid_set_char_class(arg, fmtable, char)
278 if arg~=0 then return arg
279 elseif fmtable.cid_char_type then
280 return fmtable.cid_char_type[char] or 0
284 luatexbase.add_to_callback("luatexja.find_char_class",
285 cid_set_char_class, "ltj.otf.find_char_class", 1)
288 local function enable_ivs()
289 ltjb.package_warning('luatexja-otf',
290 'luatexja.otf.enable_ivs() has now no effect.')
292 local disable_ivs = enable_ivs
295 append_jglyph = append_jglyph,
296 enable_ivs = enable_ivs, -- 隠し機能: IVS
297 disable_ivs = disable_ivs, -- 隠し機能: IVS
298 cid = cid, utf = utf,