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, jfm_ksp
53 local jfm_dir, is_def_jfont, is_vert_enabled
55 local function norm_val(a)
56 if (not a) or (a==0.) then
65 function define_jfm(t)
66 local real_char -- Does current character class have the 'real' character?
67 if t.dir~=jfm_dir then
68 defjfm_res= nil; return
69 elseif type(t.zw)~='number' or type(t.zh)~='number' then
70 defjfm_res= nil; return
72 t.char_type = {}; t.chars = {}
73 for i,v in pairs(t) do
74 if type(i) == 'number' then -- char_type
76 if i ~= 0 then defjfm_res= nil; return end
78 for j,w in pairs(v.chars) do
79 if type(w) == 'number' and w~=-1 then
80 elseif type(w) == 'string' and utf.len(w)==1 then
82 elseif type(w) == 'string' and utf.len(w)==2 and utf.sub(w,2) == '*' then
83 w = utf.byte(utf.sub(w,1,1))
85 if not t.chars[w] then
88 defjfm_res= nil; return
93 if type(v.align)~='string' then
94 v.align = 'left' -- left
96 if type(v.width)~='number' then
97 v.width = (jfm_dir=='tate') and 1.0
99 if type(v.height)~='number' then
100 v.height = (jfm_dir=='tate') and 0.0
102 if type(v.depth)~='number' then
103 v.depth = (jfm_dir=='tate') and 0.0
105 if type(v.italic)~='number' then
108 if type(v.left)~='number' then
111 if type(v.down)~='number' then
114 v.kern = v.kern or {}; v.glue = v.glue or {}
115 for j,x in pairs(v.glue) do
116 if v.kern[j] then defjfm_res= nil; return end
117 x.ratio, x[5] = (x.ratio or (x[5] and 0.5*(1+x[5]) or 0.5)), nil
118 x.priority, x[4] = (x.priority or x[4] or 0), nil
119 x.kanjiskip_natural = norm_val(x.kanjiskip_natural)
120 x.kanjiskip_stretch = norm_val(x.kanjiskip_stretch)
121 x.kanjiskip_shrink = norm_val(x.kanjiskip_shrink)
123 for j,x in pairs(v.kern) do
124 if type(x)=='number' then
126 elseif type(x)=='table' then
127 v.kern[j] = { x[1], ratio=x.ratio or (x[2] and 0.5*(1+x[2]) or 0.5) }
134 t = luatexbase.call_callback("luatexja.load_jfm", t, jfm_file_name)
139 local update_jfm_cache
141 local function mult_table(old,scale) -- modified from table.fastcopy
144 for k,v in next, old do
145 if type(v) == "table" then
146 new[k] = mult_table(v,scale)
147 elseif type(v) == "number" then
148 new[k] = round(v*scale)
156 update_jfm_cache = function (j,sz)
157 if metrics[j].size_cache[sz] then return end
158 --local TEMP = node_new(id_kern)
160 metrics[j].size_cache[sz] = t
161 t.chars = metrics[j].chars
162 t.char_type = mult_table(metrics[j].char_type, sz)
163 for i,v in pairs(t.char_type) do
164 v.align = (v.align=='left') and 0 or
165 ((v.align=='right') and 1 or 0.5)
166 if type(i) == 'number' then -- char_type
167 for k,w in pairs(v.glue) do
168 local h = node_new(id_glue_spec)
172 priority=FROM_JFM + w.priority/sz,
173 kanjiskip_natural = w.kanjiskip_natural and w.kanjiskip_natural/sz,
174 kanjiskip_stretch = w.kanjiskip_stretch and w.kanjiskip_stretch/sz,
175 kanjiskip_shrink = w.kanjiskip_shrink and w.kanjiskip_shrink/sz,
177 setfield(h, 'width', w[1])
178 setfield(h, 'stretch', w[2])
179 setfield(h, 'shrink', w[3])
180 setfield(h, 'stretch_order', 0)
181 setfield(h, 'shrink_order', 0)
183 for k,w in pairs(v.kern) do
184 local g = node_new(id_kern)
185 setfield(g, 'kern', w[1])
186 setfield(g, 'subtype', 1)
187 set_attr(g, attr_icflag, FROM_JFM)
188 v[k] = {false, g, ratio=w[2]/sz}
191 v.glue, v.kern = nil, nil
193 t.kanjiskip = mult_table(metrics[j].kanjiskip, sz)
194 t.xkanjiskip = mult_table(metrics[j].xkanjiskip,sz)
195 t.zw = round(metrics[j].zw*sz)
196 t.zh = round(metrics[j].zh*sz)
202 luatexbase.create_callback("luatexja.find_char_class", "data",
203 function (arg, fmtable, char)
207 local start_time_measure = ltjb.start_time_measure
208 local stop_time_measure = ltjb.stop_time_measure
209 local fcc_temp = { chars_cbcache = {} }
211 fcc_temp.chars_cbcache,
213 __index = function () return 0 end,
215 function find_char_class(c,m)
216 -- c: character code, m:
217 local r = (m or fcc_temp).chars_cbcache[c]
220 luatexbase.call_callback("luatexja.find_char_class", 0, m, c)
221 m.chars_cbcache[c or 0] = r
228 ------------------------------------------------------------------------
229 -- LOADING JAPANESE FONTS
230 ------------------------------------------------------------------------
234 local global_flag -- true if \globaljfont, false if \jfont
235 local function load_jfont_metric()
236 if jfm_file_name=='' then
237 ltjb.package_error('luatexja',
239 'To load and define a Japanese font, a JFM must be specified.'..
240 "The JFM 'ujis' will be used for now.")
243 for j,v in ipairs(metrics) do
244 if v.name==jfm_file_name then return j end
246 luatexja.load_lua('jfm-' .. jfm_file_name .. '.lua')
248 defjfm_res.name = jfm_file_name
249 table.insert(metrics, defjfm_res)
257 local utf8 = unicode.utf8
258 function jfontdefX(g, dir, csname)
259 jfm_dir, is_def_jfont = dir, true
260 cstemp = csname:sub( (utf8.byte(csname,1,1) == tex.escapechar) and 2 or 1, -1)
261 cstemp = cstemp:sub(1, ((cstemp:sub(-1,-1)==' ') and (cstemp:len()>=2)) and -2 or -1)
262 global_flag = g and '\\global' or ''
263 tex.sprint(cat_lp, '\\expandafter\\font\\csname ',
264 (cstemp==' ') and '\\space' or cstemp, '\\endcsname')
267 luatexbase.create_callback("luatexja.define_jfont", "data", function (ft, fn) return ft end)
270 local identifiers = fonts.hashes.identifiers
272 local j = load_jfont_metric(jfm_dir)
273 local fn = font.id(cstemp)
274 local f = font_getfont(fn)
276 ltjb.package_error('luatexja',
277 "bad JFM `" .. jfm_file_name .. "'",
278 'The JFM file you specified is not valid JFM file.\n'..
279 'So defining Japanese font is cancelled.')
280 tex.sprint(cat_lp, global_flag, '\\expandafter\\let\\csname ',
281 (cstemp==' ') and '\\space' or cstemp,
282 '\\endcsname=\\relax')
285 update_jfm_cache(j, f.size)
286 local ad = identifiers[fn].parameters
287 local sz = metrics[j].size_cache[f.size]
288 local fmtable = { jfm = j, size = f.size, var = jfm_var,
289 with_kanjiskip = jfm_ksp,
290 zw = sz.zw, zh = sz.zh,
291 ascent = ad.ascender,
292 descent = ad.descender,
293 chars = sz.chars, char_type = sz.char_type,
294 kanjiskip = sz.kanjiskip, xkanjiskip = sz.xkanjiskip,
296 vert_activated = is_vert_enabled,
299 fmtable = luatexbase.call_callback("luatexja.define_jfont", fmtable, fn)
300 font_metric_table[fn]=fmtable
301 tex.sprint(cat_lp, global_flag, '\\protected\\expandafter\\def\\csname ',
302 (cstemp==' ') and '\\space' or cstemp, '\\endcsname{\\ltj@cur'..
303 (jfm_dir == 'yoko' and 'j' or 't') .. 'fnt', fn, '\\relax}')
308 local get_dir_count = ltjd.get_dir_count
309 local dir_tate = luatexja.dir_table.dir_tate
310 local tex_get_attr = tex.getattribute
313 local a = font_metric_table[
314 tex_get_attr((get_dir_count()==dir_tate) and attr_curtfnt or attr_curjfnt)]
315 return a and a.zw or 0
318 local a = font_metric_table[
319 tex_get_attr((get_dir_count()==dir_tate) and attr_curtfnt or attr_curjfnt)]
320 return a and a.zw or 0
325 -- extract jfm_file_name and jfm_var
326 -- normalize position of 'jfm=' and 'jfmvar=' keys
327 local function extract_metric(name)
328 local is_braced = name:match('^{(.*)}$')
329 name= is_braced or name
330 jfm_file_name = ''; jfm_var = ''; jfm_ksp = true
331 local tmp, index = name:sub(1, 5), 1
332 if tmp == 'file:' or tmp == 'name:' or tmp == 'psft:' then
335 local p = name:find(":", index); index = p and (p+1) or index
337 local l = name:len()+1
338 local q = name:find(";", index+1) or l
339 if name:sub(index, index+3)=='jfm=' and q>index+4 then
340 jfm_file_name = name:sub(index+4, q-1)
342 name = name:sub(1,index-1) .. name:sub(q+1)
344 name = name:sub(1,index-1)
347 elseif name:sub(index, index+6)=='jfmvar=' and q>index+6 then
348 jfm_var = name:sub(index+7, q-1)
350 name = name:sub(1,index-1) .. name:sub(q+1)
352 name = name:sub(1,index-1)
356 index = (l~=q) and (q+1) or nil
359 if jfm_file_name~='' then
360 local l = name:sub(-1)
362 .. ((l==':' or l==';') and '' or ';')
363 .. 'jfm=' .. jfm_file_name
365 name = name .. 'jfmvar=' .. jfm_var
368 for x in string.gmatch (name, "[:;]([+%%-]?)ltjks") do
369 jfm_ksp = not (x=='-')
371 if jfm_dir == 'tate' then
372 is_vert_enabled = (not name:match('[:;]%-vert')) and (not name:match('[:;]%-vrt2'))
373 if not name:match('vert') and not name:match('vrt2') then
374 name = name .. ';vert;vrt2'
377 is_vert_enabled = nil
379 return is_braced and ('{' .. name .. '}') or name
382 -- define_font callback
383 local otfl_fdr = fonts.definers.read
384 local ltjr_font_callback = ltjr.font_callback
385 function luatexja.font_callback(name, size, id)
386 local new_name = is_def_jfont and extract_metric(name) or name
388 local res = ltjr_font_callback(new_name, size, id, otfl_fdr)
389 luatexbase.call_callback('luatexja.define_font', res, new_name, size, id)
390 -- this callback processes variation selector, so we execute it always
393 luatexbase.create_callback('luatexja.define_font', 'simple', function (n) return n end)
394 luatexbase.add_to_callback('define_font',luatexja.font_callback,"luatexja.font_callback", 1)
397 ------------------------------------------------------------------------
399 ------------------------------------------------------------------------
401 -- these function are called from ltj-latex.sty
402 local fenc_list, kyenc_list, ktenc_list = {}, {}, {}
403 function add_fenc_list(enc) fenc_list[enc] = 'true ' end
404 function add_kyenc_list(enc) kyenc_list[enc] = 'true ' end
405 function add_ktenc_list(enc) ktenc_list[enc] = 'true ' end
406 function is_kyenc(enc)
407 tex.sprint(cat_lp, '\\let\\ifin@\\if' .. (kyenc_list[enc] or 'false '))
409 function is_ktenc(enc)
410 tex.sprint(cat_lp, '\\let\\ifin@\\if' .. (ktenc_list[enc] or 'false '))
412 function is_kenc(enc)
413 tex.sprint(cat_lp, '\\let\\ifin@\\if'
414 .. (kyenc_list[enc] or ktenc_list[enc] or 'false '))
417 local kfam_list, Nkfam_list = {}, {}
418 function add_kfam(fam)
421 function search_kfam(fam, use_fd)
422 if kfam_list[fam] then
423 tex.sprint(cat_lp, '\\let\\ifin@\\iftrue '); return
424 elseif Nkfam_list[fam] then
425 tex.sprint(cat_lp, '\\let\\ifin@\\iffalse '); return
427 for i,_ in pairs(kyenc_list) do
428 if kpse.find_file(string.lower(i)..fam..'.fd') then
429 tex.sprint(cat_lp, '\\let\\ifin@\\iftrue '); return
432 for i,_ in pairs(ktenc_list) do
433 if kpse.find_file(string.lower(i)..fam..'.fd') then
434 tex.sprint(cat_lp, '\\let\\ifin@\\iftrue '); return
437 Nkfam_list[fam]=true; tex.sprint(cat_lp, '\\let\\ifin@\\iffalse '); return
439 tex.sprint(cat_lp, '\\let\\ifin@\\iffalse '); return
442 local ffam_list, Nffam_list = {}, {}
443 function is_ffam(fam)
444 tex.sprint(cat_lp, '\\let\\ifin@\\if' .. (ffam_list[fam] or 'false '))
446 function add_ffam(fam)
447 ffam_list[fam]='true '
449 function search_ffam_declared()
451 for i,_ in pairs(fenc_list) do
452 s = s .. '\\cdp@elt{' .. i .. '}'
454 tex.sprint(cat_lp, s)
456 function search_ffam_fd(fam)
457 if Nffam_list[fam] then
458 tex.sprint(cat_lp, '\\let\\ifin@\\iffalse '); return
460 for i,_ in pairs(fenc_list) do
461 if kpse.find_file(string.lower(i)..fam..'.fd') then
462 tex.sprint(cat_lp, '\\let\\ifin@\\iftrue '); return
465 Nffam_list[fam]=true; tex.sprint(cat_lp, '\\let\\ifin@\\iffalse '); return
470 ------------------------------------------------------------------------
472 ------------------------------------------------------------------------
474 local alt_font_table = alt_font_table
475 local attr_curaltfnt = {}
476 local ucs_out = 0x110000
478 ------ for TeX interface
480 function set_alt_font(b,e,ind,bfnt)
481 -- ind: 新フォント, bfnt: 基底フォント
482 if b>e then b, e = e, b end
484 ltjb.package_error('luatexja',
485 'bad character range ([' .. b .. ',' .. e .. ']). ' ..
486 'I take the intersection with [0x80, 0x10ffff].')
487 b, e = math.max(0x80,b),math.min(ucs_out-1,e)
488 elseif e<0 then -- b<e<0
490 elseif b<0x80 or e>=ucs_out then
491 ltjb.package_warning('luatexja',
492 'bad character range ([' .. b .. ',' .. e .. ']). ' ..
493 'I take the intersection with [0x80, 0x10ffff].')
494 b, e = math.max(0x80,b), math.min(ucs_out-1,e)
496 if not alt_font_table[bfnt] then alt_font_table[bfnt]={} end
497 local t = alt_font_table[bfnt]
498 local ac = font_getfont(ind).characters
499 if bfnt==ind then ind = nil end -- ind == bfnt の場合はテーブルから削除
500 if e>=0 then -- character range
502 if ac[i]then t[i]=ind end
506 local tx = font_metric_table[bfnt].chars
507 for i,v in pairs(tx) do
508 if b<=v and v<=e and ac[i] then t[i]=ind end
514 function clear_alt_font(bfnt)
515 if alt_font_table[bfnt] then
516 local t = alt_font_table[bfnt]
517 for i,_ in pairs(t) do t[i]=nil; end
521 ------ used in ltjp.suppress_hyphenate_ja callback
522 function replace_altfont(pf, pc)
523 local a = alt_font_table[pf]
524 return a and a[pc] or pf
527 ------ for LaTeX interface
529 local alt_font_table_latex = {}
532 function clear_alt_font_latex(bbase)
533 local t = alt_font_table_latex[bbase]
535 for j,v in pairs(t) do t[j] = nil end
540 function set_alt_font_latex(b,e,ind,bbase)
541 -- ind: Alt font の enc/fam/ser/shape, bbase: 基底フォントの enc/fam/ser/shape
542 if b>e then b, e = e, b end
544 ltjb.package_error('luatexja',
545 'bad character range ([' .. b .. ',' .. e .. ']). ' ..
546 'I take the intersection with [0x80, 0x10ffff].')
547 b, e = math.max(0x80,b),math.min(ucs_out-1,e)
548 elseif e<0 then -- b<e<0
550 elseif b<0x80 or e>=ucs_out then
551 ltjb.package_warning('luatexja',
552 'bad character range ([' .. b .. ',' .. e .. ']). ' ..
553 'I take the intersection with [0x80, 0x10ffff].')
554 b, e = math.max(0x80,b), math.min(ucs_out-1,e)
557 if not alt_font_table_latex[bbase] then alt_font_table_latex[bbase]={} end
558 local t = alt_font_table_latex[bbase]
559 if not t[ind] then t[ind] = {} end
561 for j,v in pairs(t) do
562 if v[i] then -- remove old entry
563 if j~=ind then v[i]=nil end; break
568 -- remove the empty tables
569 for j,v in pairs(t) do
570 local flag_clear = true
571 for k,_ in pairs(v) do flag_clear = false; break end
572 if flag_clear then t[j]=nil end
574 if ind==bbase then t[bbase] = nil end
577 -- ここから先は 新 \selectfont の内部でしか実行されない
579 local alt_font_base, alt_font_base_num
582 function does_alt_set(bbase)
583 aftl_base = alt_font_table_latex[bbase]
584 tex.sprint(cat_lp, '\\if' .. (aftl_base and 'true' or 'false'))
587 function print_aftl_address()
588 tex.sprint(cat_lp, ';ltjaltfont' .. tostring(aftl_base):sub(8))
592 function output_alt_font_cmd(dir, bbase)
593 alt_font_base = bbase
595 alt_font_base_num = tex.getattribute(attr_curtfnt)
597 alt_font_base_num = tex.getattribute(attr_curjfnt)
599 local t = alt_font_table[alt_font_base_num]
601 for i,_ in pairs(t) do t[i]=nil end
603 t = alt_font_table_latex[bbase]
605 for i,_ in pairs(t) do
606 tex.sprint(cat_lp, '\\ltj@pickup@altfont@aux' .. dir .. '{' .. i .. '}')
612 function pickup_alt_font_a(size_str)
613 local t = alt_font_table_latex[alt_font_base]
615 for i,v in pairs(t) do
616 tex.sprint(cat_lp, '\\expandafter\\ltj@pickup@altfont@copy'
617 .. '\\csname ' .. i .. '/' .. size_str .. '\\endcsname{' .. i .. '}')
622 local function pickup_alt_font_class(class, afnt_num, afnt_chars)
623 local t = alt_font_table[alt_font_base_num]
624 local tx = font_metric_table[alt_font_base_num].chars
625 for i,v in pairs(tx) do
626 if v==class and afnt_chars[i] then t[i]=afnt_num end
631 function pickup_alt_font_b(afnt_num, afnt_base)
632 local t = alt_font_table[alt_font_base_num]
633 local ac = font_getfont(afnt_num).characters
634 if not t then t = {}; alt_font_table[alt_font_base_num] = t end
635 for i,v in pairs(alt_font_table_latex[alt_font_base]) do
636 if i == afnt_base then
637 for j,_ in pairs(v) do
639 if ac[j] then t[j]=afnt_num end
640 else -- -n (n>=1) means that the character class n,
641 -- which is defined in the JFM
642 pickup_alt_font_class(-j, afnt_num, ac)
651 ------------------------------------------------------------------------
653 ------------------------------------------------------------------------
655 function cleanup_size_cache()
656 --local gs, ke = 0, 0
657 for _,n in pairs(metrics) do
658 for i,t in pairs(n.size_cache) do
659 for _,v in pairs(t.char_type) do
660 for k,w in pairs(v) do
661 if type(k)=='number' then
662 --if w[1] then gs = gs + 1 else ke = ke + 1 end
670 --print('glue spec: ', gs, 'kern: ', ke)
674 ------------------------------------------------------------------------
676 ------------------------------------------------------------------------
678 local font_extra_info = font_extra_info -- key: fontnumber
679 local font_extra_basename = {} -- key: basename
681 -- IVS and vertical metrics
682 local prepare_fl_data
683 local supply_vkern_table
685 local fields = fontloader.fields
686 local function glyph_vmetric(glyph)
687 local flds = fields(glyph)
688 local vw, tsb, vk = nil, nil, nil
689 for _,i in ipairs(flds) do
690 if i=='vwidth' then vw = glyph.vwidth end
691 if i=='tsidebearing' then tsb = glyph.tsidebearing end
692 if i=='vkerns' then vk = glyph.vkerns end
697 local sort = table.sort
698 local function add_fl_table(dest, glyphs, unitable, asc_des, units)
699 local tg, glyphmin, glyphmax = glyphs.glyphs, 0, glyphs.glyphmax
700 for _,v in pairs(fields(glyphs)) do
701 if v=='glyphmin' then glyphmin = glyphs.glyphmin; break end
703 for i = glyphmin, glyphmax-1 do
707 for _,at in pairs(gv.altuni) do
708 local bu, vsel = at.unicode, at.variant
710 if vsel>=0xE0100 then vsel = vsel - 0xE0100 end
711 dest = dest or {}; dest[bu] = dest[bu] or {}
712 local uniq_flag = true
713 for i,_ in pairs(dest[bu]) do
714 if i==vs then uniq_flag = false; break end
717 dest[bu][vsel] = unitable[gv.name]
723 local vw, tsb, vk = glyph_vmetric(gv)
724 local gi = unitable[gv.name]
725 if gi and vw and vw~=asc_des then
726 -- We do not use tsidebearing, since (1) fontloader does not read VORG table
727 -- and (2) 'tsidebearing' doea not appear in the returned table by fontloader.fields.
728 -- Hence, we assume that vertical origin == ascender
729 -- (see capsule_glyph_tate in ltj-setwidth.lua)
730 dest = dest or {}; dest[gi] = dest[gi] or {}
731 dest[gi].vwidth = vw/units
736 local dest_vk = dest.vkerns or {}; dest.vkerns = dest_vk
737 for _,v in pairs(vk) do
738 if unitable[v.char] then
740 if type(vl)=='table' then
741 for _,vlt in pairs(vl) do
742 dest_vk[vlt] = dest_vk[vlt] or {}
743 dest_vk[vlt][gi] = dest_vk[vlt][gi] or {}
744 dest_vk[vlt][gi][unitable[v.char]] = v.off
747 dest_vk[vl] = dest_vk[vl] or {}
748 dest_vk[vl][gi] = dest_vk[vl][gi] or {}
749 dest_vk[vl][gi][unitable[v.char]] = v.off
758 prepare_fl_data = function (dest, id)
759 local fl = fontloader.open(id.filename)
760 local unicodes = id.resources.unicodes
762 dest = add_fl_table(dest, fl, unicodes,
763 fl.ascent + fl.descent, fl.units_per_em)
766 for _,v in pairs(fl.subfonts) do
767 dest = add_fl_table(dest, v, unicodes,
768 fl.ascent + fl.descent, fl.units_per_em)
771 fontloader.close(fl); collectgarbage("collect")
774 -- supply vkern table
775 supply_vkern_table = function(id, bname)
776 local bx = font_extra_basename[bname].vkerns
777 local lookuphash = id.resources.lookuphash
778 local desc = id.shared.rawdata.descriptions
779 if bx and lookuphash then
780 for i,v in pairs(bx) do
781 lookuphash[i] = lookuphash[i] or v
782 for j,w in pairs(v) do
783 desc[j].kerns = desc[j].kerns or {}
794 local checksum = file.checksum
796 local function prepare_extra_data_base(id)
797 if not id then return end
798 local bname = file.nameonly(id.filename or '')
799 if not font_extra_basename[bname] then
800 -- if the cache is present, read it
801 local newsum = checksum(id.filename) -- MD5 checksum of the fontfile
802 local v = "extra_" .. string.lower(file.nameonly(id.filename))
803 local dat = ltjb.load_cache(
805 function (t) return (t.version~=cache_ver) or (t.chksum~=newsum) end
807 -- if the cache is not found or outdated, save the cache
809 font_extra_basename[bname] = dat[1] or {}
812 dat = prepare_fl_data(dat, id)
813 font_extra_basename[bname] = dat or {}
816 chksum = checksum(id.filename),
824 local function prepare_extra_data_font(id, res)
825 if type(res)=='table' and res.shared then
826 font_extra_info[id] = font_extra_basename[file.nameonly(res.filename)]
829 luatexbase.add_to_callback(
830 'luaotfload.patch_font',
832 -- these function is executed one time per one fontfile
833 local bname = prepare_extra_data_base(tfmdata)
834 if bname then supply_vkern_table(tfmdata, bname) end
837 'ltj.prepare_extra_data', 1)
838 luatexbase.add_to_callback(
839 'luatexja.define_font',
840 function (res, name, size, id)
841 prepare_extra_data_font(id, res)
843 'ltj.prepare_extra_data', 1)
845 local nulltable = {} -- dummy
846 ltjr.vert_addfunc = function (n) font_extra_info[n] = nulltable end
848 local identifiers = fonts.hashes.identifiers
849 for i=1,font.nextid()-1 do
850 if identifiers[i] then
851 prepare_extra_data_base(identifiers[i])
852 prepare_extra_data_font(i,identifiers[i])
858 ------------------------------------------------------------------------
859 -- calculate vadvance
860 ------------------------------------------------------------------------
862 local function acc_feature(table_vadv, table_vorg, subtables, ft, already_vert)
863 for char_num,v in pairs(ft.shared.rawdata.descriptions) do
865 for sn, sv in pairs(v.slookups) do
866 if subtables[sn] and type(sv)=='table' then
869 = (table_vadv[char_num] or 0) + sv[4]
871 if sv[2]~=0 and not already_vert then
873 = (table_vorg[char_num] or 0) + sv[2]
881 luatexbase.add_to_callback(
882 "luatexja.define_jfont",
883 function (fmtable, fnum)
884 local vadv = {}; fmtable.v_advance = vadv
885 local vorg = {}; fmtable.v_origin = vorg
886 local ft = font_getfont(fnum)
888 if ft.specification then
889 for feat_name,v in pairs(ft.specification.features.normal) do
891 for _,i in pairs(ft.resources.sequences) do
892 if i.order[1]== feat_name and i.type == 'gpos_single' then
893 for _,st in pairs(i.subtables) do
900 acc_feature(vadv, vorg, subtables, ft,
901 ft.specification.features.normal.vrt2 or ft.specification.features.normal.vert)
902 for i,v in pairs(vadv) do
903 vadv[i]=vadv[i]/ft.units_per_em*fmtable.size
905 for i,v in pairs(vorg) do
906 vorg[i]=vorg[i]/ft.units_per_em*fmtable.size
910 end, 1, 'ltj.v_advance'
914 ------------------------------------------------------------------------
915 -- supply tounicode entries
916 ------------------------------------------------------------------------
918 local ltjr_prepare_cid_font = ltjr.prepare_cid_font
919 luatexbase.add_to_callback(
920 'luaotfload.patch_font',
922 if tfmdata.cidinfo then
923 local rd = ltjr_prepare_cid_font(tfmdata.cidinfo.registry, tfmdata.cidinfo.ordering)
925 local ru, rc = rd.resources.unicodes, rd.characters
926 for i,v in pairs(tfmdata.characters) do
927 local w = ru["Japan1." .. tostring(v.index)]
929 v.tounicode = v.tounicode or rc[w]. tounicode
937 'ltj.supply_tounicode', 1)
941 ------------------------------------------------------------------------
943 ------------------------------------------------------------------------
945 local getfont = (Dnode ~= node) and Dnode.getfont or function(n) return n.font end
946 local getchar = (Dnode ~= node) and Dnode.getchar or function(n) return n.char end
947 local get_dir_count = ltjd.get_dir_count
948 local is_ucs_in_japanese_char = ltjc.is_ucs_in_japanese_char_direct
949 local ensure_tex_attr = ltjb.ensure_tex_attr
950 local node_write = Dnode.write
952 local ITALIC = luatexja.icflag_table.ITALIC
953 -- EXT: italic correction
954 function append_italic()
955 local p = to_direct(tex.nest[tex.nest.ptr].tail)
956 local TEMP = node_new(id_kern)
957 if p and getid(p)==id_glyph then
958 if is_ucs_in_japanese_char(p) then
959 local j = font_metric_table[
960 has_attr(p, (get_dir_count()==dir_tate) and attr_curtfnt or attr_curjfnt)
962 local g = node_new(id_kern)
963 setfield(g, 'subtype', 1); set_attr(g, attr_icflag, ITALIC)
964 setfield(g, 'kern', j.char_type[find_char_class(getchar(p), j)].italic)
965 node_write(g); ensure_tex_attr(attr_icflag, 0)
968 local h = font_getfont(f) or font.fonts[f]
970 local g = node_new(id_kern)
971 setfield(g, 'subtype', 1); set_attr(g, attr_icflag, ITALIC)
972 setfield(g, 'kern', h.characters[getchar(p)].italic)
973 node_write(g); ensure_tex_attr(attr_icflag, 0)
981 ------------------------------------------------------------------------
982 -- VERT VARIANT TABLE
983 ------------------------------------------------------------------------
985 [0x2013]=0xFE32, [0x2014]=0xFE31, [0x2025]=0xFE30,
986 [0xFF08]=0xFE35, [0xFF09]=0xFE36, [0xFF5B]=0xFE37, [0xFF5D]=0xFE38,
987 [0x3014]=0xFE39, [0x3015]=0xFE3A, [0x3010]=0xFE3B, [0x3011]=0xFE3C,
988 [0x300A]=0xFE3D, [0x300B]=0xFE3E, [0x3008]=0xFE3F, [0x3009]=0xFE40,
989 [0x300C]=0xFE41, [0x300D]=0xFE42, [0x300E]=0xFE43, [0x300F]=0xFE44,
990 [0xFF3B]=0xFE47, [0xFF3D]=0xFE48, [0xFF3F]=0xFE33,
992 setmetatable(vert_form_table, {__index=function(t,k) return k end});