4 luatexbase.provides_module({
5 name = 'luatexja.jfont',
7 description = 'Loader for Japanese fonts',
9 module('luatexja.jfont', package.seeall)
11 luatexja.load_module('base'); local ltjb = luatexja.base
12 luatexja.load_module('charrange'); local ltjc = luatexja.charrange
13 luatexja.load_module('rmlgbm'); local ltjr = luatexja.rmlgbm
14 luatexja.load_module('direction'); local ltjd = luatexja.direction
17 local Dnode = node.direct or node
19 local setfield = (Dnode ~= node) and Dnode.setfield or function(n, i, c) n[i] = c end
20 local getid = (Dnode ~= node) and Dnode.getid or function(n) return n.id end
22 local nullfunc = function(n) return n end
23 local to_direct = (Dnode ~= node) and Dnode.todirect or nullfunc
25 local node_new = Dnode.new
26 local node_free = Dnode.free
27 local has_attr = Dnode.has_attribute
28 local set_attr = Dnode.set_attribute
29 local round = tex.round
30 local font_getfont = font.getfont
32 local attr_icflag = luatexbase.attributes['ltj@icflag']
33 local attr_curjfnt = luatexbase.attributes['ltj@curjfnt']
34 local attr_curtfnt = luatexbase.attributes['ltj@curtfnt']
35 local id_glyph = node.id('glyph')
36 local id_kern = node.id('kern')
37 local id_glue_spec = node.id('glue_spec')
38 local id_glue = node.id('glue')
39 local cat_lp = luatexbase.catcodetables['latex-package']
40 local FROM_JFM = luatexja.icflag_table.FROM_JFM
41 local tokenlib = luatexja.token
42 ------------------------------------------------------------------------
44 ------------------------------------------------------------------------
46 metrics={} -- this table stores all metric informations
47 font_metric_table={} -- [font number] -> jfm_name, jfm_var, size
49 luatexbase.create_callback("luatexja.load_jfm", "data", function (ft, jn) return ft end)
51 local jfm_file_name, jfm_var
53 local jfm_dir, is_def_jfont, is_vert_enabled
55 function define_jfm(t)
56 local real_char -- Does current character class have the 'real' character?
57 if t.dir~=jfm_dir then
58 defjfm_res= nil; return
59 elseif type(t.zw)~='number' or type(t.zh)~='number' then
60 defjfm_res= nil; return
62 t.char_type = {}; t.chars = {}
63 for i,v in pairs(t) do
64 if type(i) == 'number' then -- char_type
66 if i ~= 0 then defjfm_res= nil; return end
70 for j,w in pairs(v.chars) do
71 if type(w) == 'number' and w~=-1 then
73 elseif type(w) == 'string' and utf.len(w)==1 then
74 real_char = true; w = utf.byte(w)
75 elseif type(w) == 'string' and utf.len(w)==2 and utf.sub(w,2) == '*' then
76 real_char = true; w = utf.byte(utf.sub(w,1,1))
78 if not t.chars[w] then
81 defjfm_res= nil; return
84 if type(v.align)~='string' then
85 v.align = 'left' -- left
88 if type(v.width)~='number' and v.width~='prop' then
89 defjfm_res= nil; return
91 if v.width=='prop' and jfm_dir=='tate' then
94 if type(v.height)~='number' then
97 if type(v.depth)~='number' then
100 if type(v.italic)~='number' then
103 if type(v.left)~='number' then
106 if type(v.down)~='number' then
113 v.kern = v.kern or {}; v.glue = v.glue or {}
114 for j in pairs(v.glue) do
115 if v.kern[j] then defjfm_res= nil; return end
117 for j,x in pairs(v.kern) do
118 if type(x)=='number' then
120 elseif type(x)=='table' then
121 v.kern[j] = {x[1], x[2] or 0}
128 t = luatexbase.call_callback("luatexja.load_jfm", t, jfm_file_name)
133 local update_jfm_cache
135 local function mult_table(old,scale) -- modified from table.fastcopy
138 for k,v in next, old do
139 if type(v) == "table" then
140 new[k] = mult_table(v,scale)
141 elseif type(v) == "number" then
142 new[k] = round(v*scale)
151 update_jfm_cache = function (j,sz)
152 if metrics[j].size_cache[sz] then return end
153 --local TEMP = node_new(id_kern)
155 metrics[j].size_cache[sz] = t
156 t.chars = metrics[j].chars
157 t.char_type = mult_table(metrics[j].char_type, sz)
158 for i,v in pairs(t.char_type) do
159 v.align = (v.align=='left') and 0 or
160 ((v.align=='right') and 1 or 0.5)
161 if type(i) == 'number' then -- char_type
162 for k,w in pairs(v.glue) do
163 local h = node_new(id_glue_spec)
165 true, h, (w[5] and w[5]/sz or 0),
166 FROM_JFM + (w[4] and w[4]/sz or 0),
167 ksp_natural = w.ksp_natural,
168 ksp_stretch = w.ksp_stretch,
169 ksp_shrink = w.ksp_shrink,
171 setfield(h, 'width', w[1])
172 setfield(h, 'stretch', w[2])
173 setfield(h, 'shrink', w[3])
174 setfield(h, 'stretch_order', 0)
175 setfield(h, 'shrink_order', 0)
177 for k,w in pairs(v.kern) do
178 local g = node_new(id_kern)
179 setfield(g, 'kern', w[1])
180 setfield(g, 'subtype', 1)
181 set_attr(g, attr_icflag, FROM_JFM)
182 v[k] = {false, g, w[2]/sz}
185 v.glue, v.kern = nil, nil
187 t.kanjiskip = mult_table(metrics[j].kanjiskip, sz)
188 t.xkanjiskip = mult_table(metrics[j].xkanjiskip,sz)
189 t.zw = round(metrics[j].zw*sz)
190 t.zh = round(metrics[j].zh*sz)
196 luatexbase.create_callback("luatexja.find_char_class", "data",
197 function (arg, fmtable, char)
201 local start_time_measure = ltjb.start_time_measure
202 local stop_time_measure = ltjb.stop_time_measure
203 local fcc_temp = { chars_cbcache = {} }
205 fcc_temp.chars_cbcache,
207 __index = function () return 0 end,
209 function find_char_class(c,m)
210 -- c: character code, m:
211 local r = (m or fcc_temp).chars_cbcache[c]
214 luatexbase.call_callback("luatexja.find_char_class", 0, m, c)
215 m.chars_cbcache[c or 0] = r
222 ------------------------------------------------------------------------
223 -- LOADING JAPANESE FONTS
224 ------------------------------------------------------------------------
228 local global_flag -- true if \globaljfont, false if \jfont
229 local function load_jfont_metric()
230 if jfm_file_name=='' then
231 ltjb.package_error('luatexja',
233 'To load and define a Japanese font, a JFM must be specified.'..
234 "The JFM 'ujis' will be used for now.")
237 for j,v in ipairs(metrics) do
238 if v.name==jfm_file_name then return j end
240 luatexja.load_lua('jfm-' .. jfm_file_name .. '.lua')
242 defjfm_res.name = jfm_file_name
243 table.insert(metrics, defjfm_res)
251 local utf8 = unicode.utf8
252 function jfontdefX(g, dir, csname)
253 jfm_dir, is_def_jfont = dir, true
254 cstemp = csname:sub( (utf8.byte(csname,1,1) == tex.escapechar) and 2 or 1, -1)
255 cstemp = cstemp:sub(1, ((cstemp:sub(-1,-1)==' ') and (cstemp:len()>=2)) and -2 or -1)
256 global_flag = g and '\\global' or ''
257 tex.sprint(cat_lp, '\\expandafter\\font\\csname ',
258 (cstemp==' ') and '\\space' or cstemp, '\\endcsname')
261 luatexbase.create_callback("luatexja.define_jfont", "data", function (ft, fn) return ft end)
264 local identifiers = fonts.hashes.identifiers
266 local j = load_jfont_metric(jfm_dir)
267 local fn = font.id(cstemp)
268 local f = font_getfont(fn)
270 ltjb.package_error('luatexja',
271 "bad JFM `" .. jfm_file_name .. "'",
272 'The JFM file you specified is not valid JFM file.\n'..
273 'So defining Japanese font is cancelled.')
274 tex.sprint(cat_lp, global_flag, '\\expandafter\\let\\csname ',
275 (cstemp==' ') and '\\space' or cstemp,
276 '\\endcsname=\\relax')
279 update_jfm_cache(j, f.size)
280 local ad = identifiers[fn].parameters
281 local sz = metrics[j].size_cache[f.size]
282 local fmtable = { jfm = j, size = f.size, var = jfm_var,
283 zw = sz.zw, zh = sz.zh,
284 ascent = ad.ascender,
285 descent = ad.descender,
286 chars = sz.chars, char_type = sz.char_type,
287 kanjiskip = sz.kanjiskip, xkanjiskip = sz.xkanjiskip,
289 vert_activated = is_vert_enabled,
292 fmtable = luatexbase.call_callback("luatexja.define_jfont", fmtable, fn)
293 font_metric_table[fn]=fmtable
294 tex.sprint(cat_lp, global_flag, '\\protected\\expandafter\\def\\csname ',
295 (cstemp==' ') and '\\space' or cstemp, '\\endcsname{\\ltj@cur'..
296 (jfm_dir == 'yoko' and 'j' or 't') .. 'fnt', fn, '\\relax}')
301 local get_dir_count = ltjd.get_dir_count
302 local dir_tate = luatexja.dir_table.dir_tate
303 local tex_get_attr = tex.getattribute
306 local a = font_metric_table[
307 tex_get_attr((get_dir_count()==dir_tate) and attr_curtfnt or attr_curjfnt)]
308 return a and a.zw or 0
311 local a = font_metric_table[
312 tex_get_attr((get_dir_count()==dir_tate) and attr_curtfnt or attr_curjfnt)]
313 return a and a.zw or 0
318 -- extract jfm_file_name and jfm_var
319 -- normalize position of 'jfm=' and 'jfmvar=' keys
320 local function extract_metric(name)
321 jfm_file_name = ''; jfm_var = ''
322 local tmp, index = name:sub(1, 5), 1
323 if tmp == 'file:' or tmp == 'name:' or tmp == 'psft:' then
326 local p = name:find(":", index); index = p and (p+1) or index
328 local l = name:len()+1
329 local q = name:find(";", index+1) or l
330 if name:sub(index, index+3)=='jfm=' and q>index+4 then
331 jfm_file_name = name:sub(index+4, q-1)
333 name = name:sub(1,index-1) .. name:sub(q+1)
335 name = name:sub(1,index-1)
338 elseif name:sub(index, index+6)=='jfmvar=' and q>index+6 then
339 jfm_var = name:sub(index+7, q-1)
341 name = name:sub(1,index-1) .. name:sub(q+1)
343 name = name:sub(1,index-1)
347 index = (l~=q) and (q+1) or nil
350 if jfm_file_name~='' then
351 local l = name:sub(-1)
353 .. ((l==':' or l==';') and '' or ';')
354 .. 'jfm=' .. jfm_file_name
356 name = name .. 'jfmvar=' .. jfm_var
359 if jfm_dir == 'tate' then
360 is_vert_enabled = (not name:match('-vert')) and (not name:match('-vrt2'))
361 if not name:match('vert') and not name:match('vrt2') then
362 name = name .. ';vert;vrt2'
365 is_vert_enabled = nil
370 -- define_font callback
371 local otfl_fdr = fonts.definers.read
372 local ltjr_font_callback = ltjr.font_callback
373 function luatexja.font_callback(name, size, id)
374 local new_name = is_def_jfont and extract_metric(name) or name
376 local res = ltjr_font_callback(new_name, size, id, otfl_fdr)
377 luatexbase.call_callback('luatexja.define_font', res, new_name, size, id)
378 -- this callback processes variation selector, so we execute it always
381 luatexbase.create_callback('luatexja.define_font', 'simple', function (n) return n end)
382 luatexbase.add_to_callback('define_font',luatexja.font_callback,"luatexja.font_callback", 1)
385 ------------------------------------------------------------------------
387 ------------------------------------------------------------------------
389 -- these function are called from ltj-latex.sty
390 local fenc_list, kyenc_list, ktenc_list = {}, {}, {}
391 function add_fenc_list(enc) fenc_list[enc] = 'true ' end
392 function add_kyenc_list(enc) kyenc_list[enc] = 'true ' end
393 function add_ktenc_list(enc) ktenc_list[enc] = 'true ' end
394 function is_kyenc(enc)
395 tex.sprint(cat_lp, '\\let\\ifin@\\if' .. (kyenc_list[enc] or 'false '))
397 function is_ktenc(enc)
398 tex.sprint(cat_lp, '\\let\\ifin@\\if' .. (ktenc_list[enc] or 'false '))
400 function is_kenc(enc)
401 tex.sprint(cat_lp, '\\let\\ifin@\\if'
402 .. (kyenc_list[enc] or ktenc_list[enc] or 'false '))
405 local kfam_list, Nkfam_list = {}, {}
406 function add_kfam(fam)
409 function search_kfam(fam, use_fd)
410 if kfam_list[fam] then
411 tex.sprint(cat_lp, '\\let\\ifin@\\iftrue '); return
412 elseif Nkfam_list[fam] then
413 tex.sprint(cat_lp, '\\let\\ifin@\\iffalse '); return
415 for i,_ in pairs(kyenc_list) do
416 if kpse.find_file(string.lower(i)..fam..'.fd') then
417 tex.sprint(cat_lp, '\\let\\ifin@\\iftrue '); return
420 for i,_ in pairs(ktenc_list) do
421 if kpse.find_file(string.lower(i)..fam..'.fd') then
422 tex.sprint(cat_lp, '\\let\\ifin@\\iftrue '); return
425 Nkfam_list[fam]=true; tex.sprint(cat_lp, '\\let\\ifin@\\iffalse '); return
427 tex.sprint(cat_lp, '\\let\\ifin@\\iffalse '); return
430 local ffam_list, Nffam_list = {}, {}
431 function is_ffam(fam)
432 tex.sprint(cat_lp, '\\let\\ifin@\\if' .. (ffam_list[fam] or 'false '))
434 function add_ffam(fam)
435 ffam_list[fam]='true '
437 function search_ffam_declared()
439 for i,_ in pairs(fenc_list) do
440 s = s .. '\\cdp@elt{' .. i .. '}'
442 tex.sprint(cat_lp, s)
444 function search_ffam_fd(fam)
445 if Nffam_list[fam] then
446 tex.sprint(cat_lp, '\\let\\ifin@\\iffalse '); return
448 for i,_ in pairs(fenc_list) do
449 if kpse.find_file(string.lower(i)..fam..'.fd') then
450 tex.sprint(cat_lp, '\\let\\ifin@\\iftrue '); return
453 Nffam_list[fam]=true; tex.sprint(cat_lp, '\\let\\ifin@\\iffalse '); return
458 ------------------------------------------------------------------------
460 ------------------------------------------------------------------------
462 local alt_font_table = alt_font_table
463 local attr_curaltfnt = {}
464 local ucs_out = 0x110000
466 ------ for TeX interface
468 function set_alt_font(b,e,ind,bfnt)
469 -- ind: 新フォント, bfnt: 基底フォント
470 if b>e then b, e = e, b end
472 ltjb.package_error('luatexja',
473 'bad character range ([' .. b .. ',' .. e .. ']). ' ..
474 'I take the intersection with [0x80, 0x10ffff].')
475 b, e = math.max(0x80,b),math.min(ucs_out-1,e)
476 elseif e<0 then -- b<e<0
478 elseif b<0x80 or e>=ucs_out then
479 ltjb.package_warning('luatexja',
480 'bad character range ([' .. b .. ',' .. e .. ']). ' ..
481 'I take the intersection with [0x80, 0x10ffff].')
482 b, e = math.max(0x80,b), math.min(ucs_out-1,e)
484 if not alt_font_table[bfnt] then alt_font_table[bfnt]={} end
485 local t = alt_font_table[bfnt]
486 local ac = font_getfont(ind).characters
487 if bfnt==ind then ind = nil end -- ind == bfnt の場合はテーブルから削除
488 if e>=0 then -- character range
490 if ac[i]then t[i]=ind end
494 local tx = font_metric_table[bfnt].chars
495 for i,v in pairs(tx) do
496 if b<=v and v<=e and ac[i] then t[i]=ind end
502 function clear_alt_font(bfnt)
503 if alt_font_table[bfnt] then
504 local t = alt_font_table[bfnt]
505 for i,_ in pairs(t) do t[i]=nil; end
509 ------ used in ltjp.suppress_hyphenate_ja callback
510 function replace_altfont(pf, pc)
511 local a = alt_font_table[pf]
512 return a and a[pc] or pf
515 ------ for LaTeX interface
517 local alt_font_table_latex = {}
520 function clear_alt_font_latex(bbase)
521 local t = alt_font_table_latex[bbase]
523 for j,v in pairs(t) do t[j] = nil end
528 function set_alt_font_latex(b,e,ind,bbase)
529 -- ind: Alt font の enc/fam/ser/shape, bbase: 基底フォントの enc/fam/ser/shape
530 if b>e then b, e = e, b end
532 ltjb.package_error('luatexja',
533 'bad character range ([' .. b .. ',' .. e .. ']). ' ..
534 'I take the intersection with [0x80, 0x10ffff].')
535 b, e = math.max(0x80,b),math.min(ucs_out-1,e)
536 elseif e<0 then -- b<e<0
538 elseif b<0x80 or e>=ucs_out then
539 ltjb.package_warning('luatexja',
540 'bad character range ([' .. b .. ',' .. e .. ']). ' ..
541 'I take the intersection with [0x80, 0x10ffff].')
542 b, e = math.max(0x80,b), math.min(ucs_out-1,e)
545 if not alt_font_table_latex[bbase] then alt_font_table_latex[bbase]={} end
546 local t = alt_font_table_latex[bbase]
547 if not t[ind] then t[ind] = {} end
549 for j,v in pairs(t) do
550 if v[i] then -- remove old entry
551 if j~=ind then v[i]=nil end; break
556 -- remove the empty tables
557 for j,v in pairs(t) do
558 local flag_clear = true
559 for k,_ in pairs(v) do flag_clear = false; break end
560 if flag_clear then t[j]=nil end
562 if ind==bbase then t[bbase] = nil end
565 -- ここから先は 新 \selectfont の内部でしか実行されない
567 local alt_font_base, alt_font_base_num
570 function does_alt_set(bbase)
571 aftl_base = alt_font_table_latex[bbase]
572 tex.sprint(cat_lp, '\\if' .. (aftl_base and 'true' or 'false'))
575 function print_aftl_address()
576 tex.sprint(cat_lp, ';ltjaltfont' .. tostring(aftl_base):sub(8))
580 function output_alt_font_cmd(dir, bbase)
581 alt_font_base = bbase
583 alt_font_base_num = tex.getattribute(attr_curtfnt)
585 alt_font_base_num = tex.getattribute(attr_curjfnt)
587 local t = alt_font_table[alt_font_base_num]
589 for i,_ in pairs(t) do t[i]=nil end
591 t = alt_font_table_latex[bbase]
593 for i,_ in pairs(t) do
594 tex.sprint(cat_lp, '\\ltj@pickup@altfont@aux' .. dir .. '{' .. i .. '}')
600 function pickup_alt_font_a(size_str)
601 local t = alt_font_table_latex[alt_font_base]
603 for i,v in pairs(t) do
604 tex.sprint(cat_lp, '\\expandafter\\ltj@pickup@altfont@copy'
605 .. '\\csname ' .. i .. '/' .. size_str .. '\\endcsname{' .. i .. '}')
610 local function pickup_alt_font_class(class, afnt_num, afnt_chars)
611 local t = alt_font_table[alt_font_base_num]
612 local tx = font_metric_table[alt_font_base_num].chars
613 for i,v in pairs(tx) do
614 if v==class and afnt_chars[i] then t[i]=afnt_num end
619 function pickup_alt_font_b(afnt_num, afnt_base)
620 local t = alt_font_table[alt_font_base_num]
621 local ac = font_getfont(afnt_num).characters
622 if not t then t = {}; alt_font_table[alt_font_base_num] = t end
623 for i,v in pairs(alt_font_table_latex[alt_font_base]) do
624 if i == afnt_base then
625 for j,_ in pairs(v) do
627 if ac[j] then t[j]=afnt_num end
628 else -- -n (n>=1) means that the character class n,
629 -- which is defined in the JFM
630 pickup_alt_font_class(-j, afnt_num, ac)
639 ------------------------------------------------------------------------
641 ------------------------------------------------------------------------
643 function cleanup_size_cache()
644 --local gs, ke = 0, 0
645 for _,n in pairs(metrics) do
646 for i,t in pairs(n.size_cache) do
647 for _,v in pairs(t.char_type) do
648 for k,w in pairs(v) do
649 if type(k)=='number' then
650 --if w[1] then gs = gs + 1 else ke = ke + 1 end
658 --print('glue spec: ', gs, 'kern: ', ke)
662 ------------------------------------------------------------------------
664 ------------------------------------------------------------------------
666 local font_extra_info = font_extra_info -- key: fontnumber
667 local font_extra_basename = {} -- key: basename
669 -- IVS and vertical metrics
670 local prepare_fl_data
671 local supply_vkern_table
673 local fields = fontloader.fields
674 local function glyph_vmetric(glyph)
675 local flds = fields(glyph)
676 local vw, tsb, vk = nil, nil, nil
677 for _,i in ipairs(flds) do
678 if i=='vwidth' then vw = glyph.vwidth end
679 if i=='tsidebearing' then tsb = glyph.tsidebearing end
680 if i=='vkerns' then vk = glyph.vkerns end
685 local sort = table.sort
686 local function add_fl_table(dest, glyphs, unitable, asc_des, units)
687 local tg, glyphmin, glyphmax = glyphs.glyphs, 0, glyphs.glyphmax
688 for _,v in pairs(fields(glyphs)) do
689 if v=='glyphmin' then glyphmin = glyphs.glyphmin; break end
691 for i = glyphmin, glyphmax-1 do
695 for _,at in pairs(gv.altuni) do
696 local bu, vsel = at.unicode, at.variant
698 if vsel>=0xE0100 then vsel = vsel - 0xE0100 end
699 dest = dest or {}; dest[bu] = dest[bu] or {}
700 local uniq_flag = true
701 for i,_ in pairs(dest[bu]) do
702 if i==vs then uniq_flag = false; break end
705 dest[bu][vsel] = unitable[gv.name]
711 local vw, tsb, vk = glyph_vmetric(gv)
712 local gi = unitable[gv.name]
713 if gi and vw and vw~=asc_des then
714 -- We do not use tsidebearing, since (1) fontloader does not read VORG table
715 -- and (2) 'tsidebearing' doea not appear in the returned table by fontloader.fields.
716 -- Hence, we assume that vertical origin == ascender
717 -- (see capsule_glyph_tate in ltj-setwidth.lua)
718 dest = dest or {}; dest[gi] = dest[gi] or {}
719 dest[gi].vwidth = vw/units
724 local dest_vk = dest.vkerns or {}; dest.vkerns = dest_vk
725 for _,v in pairs(vk) do
726 if unitable[v.char] then
728 if type(vl)=='table' then
729 for _,vlt in pairs(vl) do
730 dest_vk[vlt] = dest_vk[vlt] or {}
731 dest_vk[vlt][gi] = dest_vk[vlt][gi] or {}
732 dest_vk[vlt][gi][unitable[v.char]] = v.off
735 dest_vk[vl] = dest_vk[vl] or {}
736 dest_vk[vl][gi] = dest_vk[vl][gi] or {}
737 dest_vk[vl][gi][unitable[v.char]] = v.off
746 prepare_fl_data = function (dest, id)
747 local fl = fontloader.open(id.filename)
748 local unicodes = id.resources.unicodes
750 dest = add_fl_table(dest, fl, unicodes,
751 fl.ascent + fl.descent, fl.units_per_em)
754 for _,v in pairs(fl.subfonts) do
755 dest = add_fl_table(dest, v, unicodes,
756 fl.ascent + fl.descent, fl.units_per_em)
759 fontloader.close(fl); collectgarbage("collect")
762 -- supply vkern table
763 supply_vkern_table = function(id, bname)
764 local bx = font_extra_basename[bname].vkerns
765 local lookuphash = id.resources.lookuphash
766 local desc = id.shared.rawdata.descriptions
768 for i,v in pairs(bx) do
769 lookuphash[i] = lookuphash[i] or v
770 for j,w in pairs(v) do
771 desc[j].kerns = desc[j].kerns or {}
782 local checksum = file.checksum
784 local function prepare_extra_data_base(id)
785 if not id then return end
786 local bname = file.nameonly(id.filename or '')
787 if not font_extra_basename[bname] then
788 -- if the cache is present, read it
789 local newsum = checksum(id.filename) -- MD5 checksum of the fontfile
790 local v = "extra_" .. string.lower(file.nameonly(id.filename))
791 local dat = ltjb.load_cache(
793 function (t) return (t.version~=cache_ver) or (t.chksum~=newsum) end
795 -- if the cache is not found or outdated, save the cache
797 font_extra_basename[bname] = dat[1] or {}
800 dat = prepare_fl_data(dat, id)
801 font_extra_basename[bname] = dat or {}
804 chksum = checksum(id.filename),
812 local function prepare_extra_data_font(id, res)
813 if type(res)=='table' and res.shared then
814 font_extra_info[id] = font_extra_basename[file.nameonly(res.filename)]
817 luatexbase.add_to_callback(
818 'luaotfload.patch_font',
820 -- these function is executed one time per one fontfile
821 local bname = prepare_extra_data_base(tfmdata)
822 if bname then supply_vkern_table(tfmdata, bname) end
825 'ltj.prepare_extra_data', 1)
826 luatexbase.add_to_callback(
827 'luatexja.define_font',
828 function (res, name, size, id)
829 prepare_extra_data_font(id, res)
831 'ltj.prepare_extra_data', 1)
833 local nulltable = {} -- dummy
834 ltjr.vert_addfunc = function (n) font_extra_info[n] = nulltable end
836 local identifiers = fonts.hashes.identifiers
837 for i=1,font.nextid()-1 do
838 if identifiers[i] then
839 prepare_extra_data_base(identifiers[i])
840 prepare_extra_data_font(i,identifiers[i])
846 ------------------------------------------------------------------------
847 -- calculate vadvance
848 ------------------------------------------------------------------------
850 local function acc_feature(table_vadv, table_vorg, subtables, ft, already_vert)
851 for char_num,v in pairs(ft.shared.rawdata.descriptions) do
853 for sn, sv in pairs(v.slookups) do
854 if subtables[sn] and type(sv)=='table' then
857 = (table_vadv[char_num] or 0) + sv[4]
859 if sv[2]~=0 and not already_vert then
861 = (table_vorg[char_num] or 0) + sv[2]
869 luatexbase.add_to_callback(
870 "luatexja.define_jfont",
871 function (fmtable, fnum)
872 local vadv = {}; fmtable.v_advance = vadv
873 local vorg = {}; fmtable.v_origin = vorg
874 local ft = font_getfont(fnum)
876 if ft.specification then
877 for feat_name,v in pairs(ft.specification.features.normal) do
879 for _,i in pairs(ft.resources.sequences) do
880 if i.order[1]== feat_name and i.type == 'gpos_single' then
881 for _,st in pairs(i.subtables) do
888 acc_feature(vadv, vorg, subtables, ft,
889 ft.specification.features.normal.vrt2 or ft.specification.features.normal.vert)
890 for i,v in pairs(vadv) do
891 vadv[i]=vadv[i]/ft.units_per_em*fmtable.size
893 for i,v in pairs(vorg) do
894 vorg[i]=vorg[i]/ft.units_per_em*fmtable.size
898 end, 1, 'ltj.v_advance'
902 ------------------------------------------------------------------------
903 -- supply tounicode entries
904 ------------------------------------------------------------------------
906 local ltjr_prepare_cid_font = ltjr.prepare_cid_font
907 luatexbase.add_to_callback(
908 'luaotfload.patch_font',
910 if tfmdata.cidinfo then
911 local rd = ltjr_prepare_cid_font(tfmdata.cidinfo.registry, tfmdata.cidinfo.ordering)
913 local ru, rc = rd.resources.unicodes, rd.characters
914 for i,v in pairs(tfmdata.characters) do
915 local w = ru["Japan1." .. tostring(v.index)]
917 v.tounicode = v.tounicode or rc[w]. tounicode
925 'ltj.supply_tounicode', 1)
929 ------------------------------------------------------------------------
931 ------------------------------------------------------------------------
933 local getfont = (Dnode ~= node) and Dnode.getfont or function(n) return n.font end
934 local getchar = (Dnode ~= node) and Dnode.getchar or function(n) return n.char end
935 local get_dir_count = ltjd.get_dir_count
936 local is_ucs_in_japanese_char = ltjc.is_ucs_in_japanese_char_direct
937 local ensure_tex_attr = ltjb.ensure_tex_attr
938 local node_write = Dnode.write
940 local ITALIC = luatexja.icflag_table.ITALIC
941 -- EXT: italic correction
942 function append_italic()
943 local p = to_direct(tex.nest[tex.nest.ptr].tail)
944 local TEMP = node_new(id_kern)
945 if p and getid(p)==id_glyph then
946 if is_ucs_in_japanese_char(p) then
947 local j = font_metric_table[
948 has_attr(p, (get_dir_count()==dir_tate) and attr_curtfnt or attr_curjfnt)
950 local g = node_new(id_kern)
951 setfield(g, 'subtype', 1); set_attr(g, attr_icflag, ITALIC)
952 setfield(g, 'kern', j.char_type[find_char_class(getchar(p), j)].italic)
953 node_write(g); ensure_tex_attr(attr_icflag, 0)
956 local h = font_getfont(f) or font.fonts[f]
958 local g = node_new(id_kern)
959 setfield(g, 'subtype', 1); set_attr(g, attr_icflag, ITALIC)
960 setfield(g, 'kern', h.characters[getchar(p)].italic)
961 node_write(g); ensure_tex_attr(attr_icflag, 0)
969 ------------------------------------------------------------------------
970 -- VERT VARIANT TABLE
971 ------------------------------------------------------------------------
973 [0x2013]=0xFE32, [0x2014]=0xFE31, [0x2025]=0xFE30,
974 [0xFF08]=0xFE35, [0xFF09]=0xFE36, [0xFF5B]=0xFE37, [0xFF5D]=0xFE38,
975 [0x3014]=0xFE39, [0x3015]=0xFE3A, [0x3010]=0xFE3B, [0x3011]=0xFE3C,
976 [0x300A]=0xFE3D, [0x300B]=0xFE3E, [0x3008]=0xFE3F, [0x3009]=0xFE40,
977 [0x300C]=0xFE41, [0x300D]=0xFE42, [0x300E]=0xFE43, [0x300F]=0xFE44,
978 [0xFF3B]=0xFE47, [0xFF3D]=0xFE48, [0xFF3F]=0xFE33,
980 setmetatable(vert_form_table, {__index=function(t,k) return k end});