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
13 luatexja.load_module('lotf_aux'); local ltju = luatexja.lotf_aux
15 local id_glyph = node.id('glyph')
16 local id_whatsit = node.id('whatsit')
17 local sid_user = node.subtype('user_defined')
19 local setfield = node.direct.setfield
20 local getfield = node.direct.getfield
21 local getid = node.direct.getid
22 local getfont = node.direct.getfont
23 local getchar = node.direct.getchar
24 local getsubtype = node.direct.getsubtype
26 local to_node = node.direct.tonode
27 local to_direct = node.direct.todirect
29 local node_new = node.direct.new
30 local node_remove = node.direct.remove
31 local node_next = node.direct.getnext
32 local node_free = node.direct.free
33 local has_attr = node.direct.has_attribute
34 local set_attr = node.direct.set_attribute
35 local unset_attr = node.direct.unset_attribute
36 local node_insert_after = node.direct.insert_after
37 local node_write = node.direct.write
38 local node_traverse_id = node.direct.traverse_id
41 local attr_curjfnt = luatexbase.attributes['ltj@curjfnt']
42 local attr_curtfnt = luatexbase.attributes['ltj@curtfnt']
43 local attr_yablshift = luatexbase.attributes['ltj@yablshift']
44 local attr_ykblshift = luatexbase.attributes['ltj@ykblshift']
45 local attr_tablshift = luatexbase.attributes['ltj@tablshift']
46 local attr_tkblshift = luatexbase.attributes['ltj@tkblshift']
47 local lang_ja = luatexja.lang_ja
48 local font_getfont = font.getfont
50 local ltjf_font_metric_table = ltjf.font_metric_table
51 local ltjf_font_extra_info = ltjf.font_extra_info
52 local ltjf_find_char_class = ltjf.find_char_class
53 local ltjr_cidfont_data = ltjr.cidfont_data
54 local ltjc_is_ucs_in_japanese_char = ltjc.is_ucs_in_japanese_char
55 local ltjd_get_dir_count = ltjd.get_dir_count
56 local dir_tate = luatexja.dir_table.dir_tate
58 luatexja.userid_table.OTF = luatexbase.newuserwhatsitid('char_by_cid', 'luatexja')
59 local OTF = luatexja.userid_table.OTF
60 local tex_get_attr = tex.getattribute
63 local cache_outdate_fn = function (t) return t.version~=cache_ver end
64 local ivd_aj1 = ltjb.load_cache('ltj-ivd_aj1',cache_outdate_fn)
65 if not ivd_aj1 then -- make cache
66 ivd_aj1 = require('ltj-ivd_aj1.lua')
67 ltjb.save_cache_luc('ltj-ivd_aj1', ivd_aj1)
71 local function get_ucs_from_rmlgbm(c)
72 local v = (ivd_aj1 and ivd_aj1.table_ivd_aj1[c]
73 or ltjr_cidfont_data["Adobe-Japan1"].resources.unicodes["Japan1." .. tostring(c)])
75 if v>=0x200000 then -- table
76 local curjfnt_num = tex_get_attr((ltjd_get_dir_count()==dir_tate)
77 and attr_curtfnt or attr_curjfnt)
78 local curjfnt = font_getfont(curjfnt_num).resources
79 local base, ivs = v % 0x200000, 0xE00FF + math.floor(v/0x200000)
80 curjfnt = curjfnt and curjfnt.variants
81 curjfnt = curjfnt and curjfnt[ivs]
82 return curjfnt and curjfnt[base] or base
83 elseif v<0xF0000 then -- 素直に Unicode にマップ可能
85 else -- privete use area
86 local r, aj = nil, ltjr_cidfont_data["Adobe-Japan1"]
87 -- 先に ltj_vert_table を見る
88 for i,w in pairs(aj.shared.ltj_vert_table) do
89 if w==v then r=i; break end
92 -- なければ ToUnicode から引く
93 local w = aj.characters[v].tounicode -- must be non-nil!
94 local i = string.len(w)
98 i,w = tonumber(string.sub(w,1,4),16), tonumber(string.sub(w,-4),16)
99 if (w>=0xD800) and (w<=0xDB7F) and (i>=0xDC00) and (i<=0xDFFF) then -- Surrogate pair
100 r = (w-0xD800)*0x400 + (i-0xDC00)
106 if aj.shared.ltj_vert_table[r] then
108 return ltju.replace_vert_variant(
109 tex_get_attr((ltjd_get_dir_count()==dir_tate) and attr_curtfnt or attr_curjfnt),
116 -- Append a whatsit node to the list.
117 -- This whatsit node will be extracted to a glyph_node
118 local function append_jglyph(char)
119 local p = node_new(id_whatsit,sid_user)
120 setfield(p, 'user_id', OTF)
121 setfield(p, 'type', 100)
122 setfield(p, 'value', char)
129 if ltjd_get_dir_count()==dir_tate then
130 ucs = ltju.replace_vert_variant(
131 tex_get_attr((ltjd_get_dir_count()==dir_tate) and attr_curtfnt or attr_curjfnt),
134 return append_jglyph(ucs)
141 if key==0 then return append_jglyph(0) end
142 local curjfnt_num = tex_get_attr((ltjd_get_dir_count()==dir_tate)
143 and attr_curtfnt or attr_curjfnt)
144 local curjfnt = font_getfont(curjfnt_num)
145 local cidinfo = curjfnt.resources.cidinfo
147 cidinfo.ordering ~= "Japan1" and
148 cidinfo.ordering ~= "GB1" and
149 cidinfo.ordering ~= "CNS1" and
150 cidinfo.ordering ~= "Korea1" and
151 cidinfo.ordering ~= "KR" then
152 -- ltjb.package_warning('luatexja-otf',
153 -- 'Current Japanese font (or other CJK font) "'
154 -- ..curjfnt.psname..'" is not a CID-Keyed font (Adobe-Japan1 etc.)')
155 return append_jglyph(get_ucs_from_rmlgbm(key))
157 local char = ltjf_font_extra_info[curjfnt_num].ind_to_uni[key]
159 -- ltjb.package_warning('luatexja-otf',
160 -- '"' ..curjfnt.psname..'" does not have CID character '
162 -- 'Use a font including the specified CID character.')
165 return append_jglyph(char)
170 local function extract(head)
171 head = to_direct(head)
173 local is_dir_tate = ltjs.list_dir == dir_tate
174 local attr_ablshift = is_dir_tate and attr_tablshift or attr_yablshift
175 local attr_kblshift = is_dir_tate and attr_tkblshift or attr_ykblshift
176 local attr_curfnt = is_dir_tate and attr_curtfnt or attr_curjfnt
178 if getid(p)==id_whatsit then
179 if getsubtype(p)==sid_user then
180 local puid = getfield(p, 'user_id')
182 --if puid==OTF or puid==VSR then
183 local g = node_new(id_glyph)
184 setfield(g, 'subtype', 0)
185 setfield(g, 'char', getfield(p, 'value'))
186 local v = has_attr(p, attr_curfnt); setfield(g, 'font',v)
188 setfield(g, 'lang', lang_ja)
189 set_attr(g, attr_kblshift, has_attr(p, attr_kblshift))
191 -- set_attr(g, attr_ablshift, has_attr(p, attr_ablshift))
193 head = node_insert_after(head, p, g)
194 head = node_remove(head, p)
204 ltjb.add_to_callback('hpack_filter', extract,'ltj.otf',
205 luatexbase.priority_in_callback('hpack_filter', 'ltj.main'))
206 ltjb.add_to_callback('pre_linebreak_filter', extract,'ltj.otf',
207 luatexbase.priority_in_callback('pre_linebreak_filter', 'ltj.main'))
208 -- additional callbacks
209 -- 以下は,LuaTeX-ja に用意された callback のサンプルになっている.
210 -- 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.
212 -- 和文フォント読み込み時に,ind -> unicode 対応をとっておく.
213 local function ind_to_uni(fmtable, fn)
214 local fi = font_getfont(fn)
215 local t = ltjf_font_extra_info[fn].ind_to_uni
216 if t and fi.resources and fi.resources.cidinfo
217 and fi.resources.cidinfo.ordering == "Japan1" then
218 for i, v in pairs(fmtable.chars) do
219 local j = string.match(i, "^AJ1%-([0-9]*)")
223 fmtable.cid_char_type = fmtable.cid_char_type or {}
224 fmtable.cid_char_type[j] = v
231 luatexbase.add_to_callback("luatexja.define_jfont",
232 ind_to_uni, "ltj.otf.define_jfont", 1)
233 -- 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
234 for fn, v in pairs(ltjf_font_metric_table) do
235 ltjf_font_metric_table[fn] = ind_to_uni(v, fn)
239 local function cid_set_char_class(arg, fmtable, char)
240 if arg~=0 then return arg
241 elseif fmtable.cid_char_type then
242 return fmtable.cid_char_type[char] or 0
246 luatexbase.add_to_callback("luatexja.find_char_class",
247 cid_set_char_class, "ltj.otf.find_char_class", 1)
250 local function enable_ivs()
251 ltjb.package_warning('luatexja-otf',
252 'luatexja.otf.enable_ivs() has now no effect.')
254 local disable_ivs = enable_ivs
257 append_jglyph = append_jglyph,
258 enable_ivs = enable_ivs, -- 隠し機能: IVS
259 disable_ivs = disable_ivs, -- 隠し機能: IVS
260 cid = cid, utf = utf,