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
66 function define_jfm(t)
67 local real_char -- Does current character class have the 'real' character?
68 if t.dir~=jfm_dir then
69 defjfm_res= nil; return
70 elseif type(t.zw)~='number' or type(t.zh)~='number' then
71 defjfm_res= nil; return
73 t.char_type = {}; t.chars = {}
74 for i,v in pairs(t) do
75 if type(i) == 'number' then -- char_type
77 if i ~= 0 then defjfm_res= nil; return end
81 for j,w in pairs(v.chars) do
82 if type(w) == 'number' and w~=-1 then
84 elseif type(w) == 'string' and utf.len(w)==1 then
85 real_char = true; w = utf.byte(w)
86 elseif type(w) == 'string' and utf.len(w)==2 and utf.sub(w,2) == '*' then
87 real_char = true; w = utf.byte(utf.sub(w,1,1))
89 if not t.chars[w] then
92 defjfm_res= nil; return
95 if type(v.align)~='string' then
96 v.align = 'left' -- left
99 if type(v.width)~='number' and v.width~='prop' then
100 defjfm_res= nil; return
102 if v.width=='prop' and jfm_dir=='tate' then
105 if type(v.height)~='number' then
108 if type(v.depth)~='number' then
111 if type(v.italic)~='number' then
114 if type(v.left)~='number' then
117 if type(v.down)~='number' then
124 v.kern = v.kern or {}; v.glue = v.glue or {}
125 for j,x in pairs(v.glue) do
126 if v.kern[j] then defjfm_res= nil; return end
127 x.ratio, x[5] = (x.ratio or (x[5] and 0.5*(1+x[5]) or 0.5)), nil
128 x.priority, x[4] = (x.priority or x[4] or 0), nil
129 x.kanjiskip_natural = norm_val(x.kanjiskip_natural)
130 x.kanjiskip_stretch = norm_val(x.kanjiskip_stretch)
131 x.kanjiskip_shrink = norm_val(x.kanjiskip_shrink)
133 for j,x in pairs(v.kern) do
134 if type(x)=='number' then
136 elseif type(x)=='table' then
137 v.kern[j] = { x[1], ratio=x.ratio or (x[2] and 0.5*(1+x[2]) or 0.5) }
144 t = luatexbase.call_callback("luatexja.load_jfm", t, jfm_file_name)
149 local update_jfm_cache
151 local function mult_table(old,scale) -- modified from table.fastcopy
154 for k,v in next, old do
155 if type(v) == "table" then
156 new[k] = mult_table(v,scale)
157 elseif type(v) == "number" then
158 new[k] = round(v*scale)
166 update_jfm_cache = function (j,sz)
167 if metrics[j].size_cache[sz] then return end
168 --local TEMP = node_new(id_kern)
170 metrics[j].size_cache[sz] = t
171 t.chars = metrics[j].chars
172 t.char_type = mult_table(metrics[j].char_type, sz)
173 for i,v in pairs(t.char_type) do
174 v.align = (v.align=='left') and 0 or
175 ((v.align=='right') and 1 or 0.5)
176 if type(i) == 'number' then -- char_type
177 for k,w in pairs(v.glue) do
178 local h = node_new(id_glue_spec)
182 priority=FROM_JFM + w.priority/sz,
183 kanjiskip_natural = w.kanjiskip_natural and w.kanjiskip_natural/sz,
184 kanjiskip_stretch = w.kanjiskip_stretch and w.kanjiskip_stretch/sz,
185 kanjiskip_shrink = w.kanjiskip_shrink and w.kanjiskip_shrink/sz,
187 setfield(h, 'width', w[1])
188 setfield(h, 'stretch', w[2])
189 setfield(h, 'shrink', w[3])
190 setfield(h, 'stretch_order', 0)
191 setfield(h, 'shrink_order', 0)
193 for k,w in pairs(v.kern) do
194 local g = node_new(id_kern)
195 setfield(g, 'kern', w[1])
196 setfield(g, 'subtype', 1)
197 set_attr(g, attr_icflag, FROM_JFM)
198 v[k] = {false, g, ratio=w[2]/sz}
201 v.glue, v.kern = nil, nil
203 t.kanjiskip = mult_table(metrics[j].kanjiskip, sz)
204 t.xkanjiskip = mult_table(metrics[j].xkanjiskip,sz)
205 t.zw = round(metrics[j].zw*sz)
206 t.zh = round(metrics[j].zh*sz)
212 luatexbase.create_callback("luatexja.find_char_class", "data",
213 function (arg, fmtable, char)
217 local start_time_measure = ltjb.start_time_measure
218 local stop_time_measure = ltjb.stop_time_measure
219 local fcc_temp = { chars_cbcache = {} }
221 fcc_temp.chars_cbcache,
223 __index = function () return 0 end,
225 function find_char_class(c,m)
226 -- c: character code, m:
227 local r = (m or fcc_temp).chars_cbcache[c]
230 luatexbase.call_callback("luatexja.find_char_class", 0, m, c)
231 m.chars_cbcache[c or 0] = r
238 ------------------------------------------------------------------------
239 -- LOADING JAPANESE FONTS
240 ------------------------------------------------------------------------
244 local global_flag -- true if \globaljfont, false if \jfont
245 local function load_jfont_metric()
246 if jfm_file_name=='' then
247 ltjb.package_error('luatexja',
249 'To load and define a Japanese font, a JFM must be specified.'..
250 "The JFM 'ujis' will be used for now.")
253 for j,v in ipairs(metrics) do
254 if v.name==jfm_file_name then return j end
256 luatexja.load_lua('jfm-' .. jfm_file_name .. '.lua')
258 defjfm_res.name = jfm_file_name
259 table.insert(metrics, defjfm_res)
267 local utf8 = unicode.utf8
268 function jfontdefX(g, dir, csname)
269 jfm_dir, is_def_jfont = dir, true
270 cstemp = csname:sub( (utf8.byte(csname,1,1) == tex.escapechar) and 2 or 1, -1)
271 cstemp = cstemp:sub(1, ((cstemp:sub(-1,-1)==' ') and (cstemp:len()>=2)) and -2 or -1)
272 global_flag = g and '\\global' or ''
273 tex.sprint(cat_lp, '\\expandafter\\font\\csname ',
274 (cstemp==' ') and '\\space' or cstemp, '\\endcsname')
277 luatexbase.create_callback("luatexja.define_jfont", "data", function (ft, fn) return ft end)
280 local identifiers = fonts.hashes.identifiers
282 local j = load_jfont_metric(jfm_dir)
283 local fn = font.id(cstemp)
284 local f = font_getfont(fn)
286 ltjb.package_error('luatexja',
287 "bad JFM `" .. jfm_file_name .. "'",
288 'The JFM file you specified is not valid JFM file.\n'..
289 'So defining Japanese font is cancelled.')
290 tex.sprint(cat_lp, global_flag, '\\expandafter\\let\\csname ',
291 (cstemp==' ') and '\\space' or cstemp,
292 '\\endcsname=\\relax')
295 update_jfm_cache(j, f.size)
296 local ad = identifiers[fn].parameters
297 local sz = metrics[j].size_cache[f.size]
298 local fmtable = { jfm = j, size = f.size, var = jfm_var,
299 with_kanjiskip = jfm_ksp,
300 zw = sz.zw, zh = sz.zh,
301 ascent = ad.ascender,
302 descent = ad.descender,
303 chars = sz.chars, char_type = sz.char_type,
304 kanjiskip = sz.kanjiskip, xkanjiskip = sz.xkanjiskip,
306 vert_activated = is_vert_enabled,
309 fmtable = luatexbase.call_callback("luatexja.define_jfont", fmtable, fn)
310 font_metric_table[fn]=fmtable
311 tex.sprint(cat_lp, global_flag, '\\protected\\expandafter\\def\\csname ',
312 (cstemp==' ') and '\\space' or cstemp, '\\endcsname{\\ltj@cur'..
313 (jfm_dir == 'yoko' and 'j' or 't') .. 'fnt', fn, '\\relax}')
318 local get_dir_count = ltjd.get_dir_count
319 local dir_tate = luatexja.dir_table.dir_tate
320 local tex_get_attr = tex.getattribute
323 local a = font_metric_table[
324 tex_get_attr((get_dir_count()==dir_tate) and attr_curtfnt or attr_curjfnt)]
325 return a and a.zw or 0
328 local a = font_metric_table[
329 tex_get_attr((get_dir_count()==dir_tate) and attr_curtfnt or attr_curjfnt)]
330 return a and a.zw or 0
335 -- extract jfm_file_name and jfm_var
336 -- normalize position of 'jfm=' and 'jfmvar=' keys
337 local function extract_metric(name)
338 jfm_file_name = ''; jfm_var = ''; jfm_ksp = true
339 local tmp, index = name:sub(1, 5), 1
340 if tmp == 'file:' or tmp == 'name:' or tmp == 'psft:' then
343 local p = name:find(":", index); index = p and (p+1) or index
345 local l = name:len()+1
346 local q = name:find(";", index+1) or l
347 if name:sub(index, index+3)=='jfm=' and q>index+4 then
348 jfm_file_name = name:sub(index+4, q-1)
350 name = name:sub(1,index-1) .. name:sub(q+1)
352 name = name:sub(1,index-1)
355 elseif name:sub(index, index+6)=='jfmvar=' and q>index+6 then
356 jfm_var = name:sub(index+7, q-1)
358 name = name:sub(1,index-1) .. name:sub(q+1)
360 name = name:sub(1,index-1)
364 index = (l~=q) and (q+1) or nil
367 if jfm_file_name~='' then
368 local l = name:sub(-1)
370 .. ((l==':' or l==';') and '' or ';')
371 .. 'jfm=' .. jfm_file_name
373 name = name .. 'jfmvar=' .. jfm_var
376 for x in string.gmatch (name, "[:;]([+%%-]?)ltjks") do
377 jfm_ksp = not (x=='-')
379 if jfm_dir == 'tate' then
380 is_vert_enabled = (not name:match('[:;]%-vert')) and (not name:match('[:;]%-vrt2'))
381 if not name:match('vert') and not name:match('vrt2') then
382 name = name .. ';vert;vrt2'
385 is_vert_enabled = nil
390 -- define_font callback
391 local otfl_fdr = fonts.definers.read
392 local ltjr_font_callback = ltjr.font_callback
393 function luatexja.font_callback(name, size, id)
394 local new_name = is_def_jfont and extract_metric(name) or name
396 local res = ltjr_font_callback(new_name, size, id, otfl_fdr)
397 luatexbase.call_callback('luatexja.define_font', res, new_name, size, id)
398 -- this callback processes variation selector, so we execute it always
401 luatexbase.create_callback('luatexja.define_font', 'simple', function (n) return n end)
402 luatexbase.add_to_callback('define_font',luatexja.font_callback,"luatexja.font_callback", 1)
405 ------------------------------------------------------------------------
407 ------------------------------------------------------------------------
409 -- these function are called from ltj-latex.sty
410 local fenc_list, kyenc_list, ktenc_list = {}, {}, {}
411 function add_fenc_list(enc) fenc_list[enc] = 'true ' end
412 function add_kyenc_list(enc) kyenc_list[enc] = 'true ' end
413 function add_ktenc_list(enc) ktenc_list[enc] = 'true ' end
414 function is_kyenc(enc)
415 tex.sprint(cat_lp, '\\let\\ifin@\\if' .. (kyenc_list[enc] or 'false '))
417 function is_ktenc(enc)
418 tex.sprint(cat_lp, '\\let\\ifin@\\if' .. (ktenc_list[enc] or 'false '))
420 function is_kenc(enc)
421 tex.sprint(cat_lp, '\\let\\ifin@\\if'
422 .. (kyenc_list[enc] or ktenc_list[enc] or 'false '))
425 local kfam_list, Nkfam_list = {}, {}
426 function add_kfam(fam)
429 function search_kfam(fam, use_fd)
430 if kfam_list[fam] then
431 tex.sprint(cat_lp, '\\let\\ifin@\\iftrue '); return
432 elseif Nkfam_list[fam] then
433 tex.sprint(cat_lp, '\\let\\ifin@\\iffalse '); return
435 for i,_ in pairs(kyenc_list) do
436 if kpse.find_file(string.lower(i)..fam..'.fd') then
437 tex.sprint(cat_lp, '\\let\\ifin@\\iftrue '); return
440 for i,_ in pairs(ktenc_list) do
441 if kpse.find_file(string.lower(i)..fam..'.fd') then
442 tex.sprint(cat_lp, '\\let\\ifin@\\iftrue '); return
445 Nkfam_list[fam]=true; tex.sprint(cat_lp, '\\let\\ifin@\\iffalse '); return
447 tex.sprint(cat_lp, '\\let\\ifin@\\iffalse '); return
450 local ffam_list, Nffam_list = {}, {}
451 function is_ffam(fam)
452 tex.sprint(cat_lp, '\\let\\ifin@\\if' .. (ffam_list[fam] or 'false '))
454 function add_ffam(fam)
455 ffam_list[fam]='true '
457 function search_ffam_declared()
459 for i,_ in pairs(fenc_list) do
460 s = s .. '\\cdp@elt{' .. i .. '}'
462 tex.sprint(cat_lp, s)
464 function search_ffam_fd(fam)
465 if Nffam_list[fam] then
466 tex.sprint(cat_lp, '\\let\\ifin@\\iffalse '); return
468 for i,_ in pairs(fenc_list) do
469 if kpse.find_file(string.lower(i)..fam..'.fd') then
470 tex.sprint(cat_lp, '\\let\\ifin@\\iftrue '); return
473 Nffam_list[fam]=true; tex.sprint(cat_lp, '\\let\\ifin@\\iffalse '); return
478 ------------------------------------------------------------------------
480 ------------------------------------------------------------------------
482 local alt_font_table = alt_font_table
483 local attr_curaltfnt = {}
484 local ucs_out = 0x110000
486 ------ for TeX interface
488 function set_alt_font(b,e,ind,bfnt)
489 -- ind: 新フォント, bfnt: 基底フォント
490 if b>e then b, e = e, b end
492 ltjb.package_error('luatexja',
493 'bad character range ([' .. b .. ',' .. e .. ']). ' ..
494 'I take the intersection with [0x80, 0x10ffff].')
495 b, e = math.max(0x80,b),math.min(ucs_out-1,e)
496 elseif e<0 then -- b<e<0
498 elseif b<0x80 or e>=ucs_out then
499 ltjb.package_warning('luatexja',
500 'bad character range ([' .. b .. ',' .. e .. ']). ' ..
501 'I take the intersection with [0x80, 0x10ffff].')
502 b, e = math.max(0x80,b), math.min(ucs_out-1,e)
504 if not alt_font_table[bfnt] then alt_font_table[bfnt]={} end
505 local t = alt_font_table[bfnt]
506 local ac = font_getfont(ind).characters
507 if bfnt==ind then ind = nil end -- ind == bfnt の場合はテーブルから削除
508 if e>=0 then -- character range
510 if ac[i]then t[i]=ind end
514 local tx = font_metric_table[bfnt].chars
515 for i,v in pairs(tx) do
516 if b<=v and v<=e and ac[i] then t[i]=ind end
522 function clear_alt_font(bfnt)
523 if alt_font_table[bfnt] then
524 local t = alt_font_table[bfnt]
525 for i,_ in pairs(t) do t[i]=nil; end
529 ------ used in ltjp.suppress_hyphenate_ja callback
530 function replace_altfont(pf, pc)
531 local a = alt_font_table[pf]
532 return a and a[pc] or pf
535 ------ for LaTeX interface
537 local alt_font_table_latex = {}
540 function clear_alt_font_latex(bbase)
541 local t = alt_font_table_latex[bbase]
543 for j,v in pairs(t) do t[j] = nil end
548 function set_alt_font_latex(b,e,ind,bbase)
549 -- ind: Alt font の enc/fam/ser/shape, bbase: 基底フォントの enc/fam/ser/shape
550 if b>e then b, e = e, b end
552 ltjb.package_error('luatexja',
553 'bad character range ([' .. b .. ',' .. e .. ']). ' ..
554 'I take the intersection with [0x80, 0x10ffff].')
555 b, e = math.max(0x80,b),math.min(ucs_out-1,e)
556 elseif e<0 then -- b<e<0
558 elseif b<0x80 or e>=ucs_out then
559 ltjb.package_warning('luatexja',
560 'bad character range ([' .. b .. ',' .. e .. ']). ' ..
561 'I take the intersection with [0x80, 0x10ffff].')
562 b, e = math.max(0x80,b), math.min(ucs_out-1,e)
565 if not alt_font_table_latex[bbase] then alt_font_table_latex[bbase]={} end
566 local t = alt_font_table_latex[bbase]
567 if not t[ind] then t[ind] = {} end
569 for j,v in pairs(t) do
570 if v[i] then -- remove old entry
571 if j~=ind then v[i]=nil end; break
576 -- remove the empty tables
577 for j,v in pairs(t) do
578 local flag_clear = true
579 for k,_ in pairs(v) do flag_clear = false; break end
580 if flag_clear then t[j]=nil end
582 if ind==bbase then t[bbase] = nil end
585 -- ここから先は 新 \selectfont の内部でしか実行されない
587 local alt_font_base, alt_font_base_num
590 function does_alt_set(bbase)
591 aftl_base = alt_font_table_latex[bbase]
592 tex.sprint(cat_lp, '\\if' .. (aftl_base and 'true' or 'false'))
595 function print_aftl_address()
596 tex.sprint(cat_lp, ';ltjaltfont' .. tostring(aftl_base):sub(8))
600 function output_alt_font_cmd(dir, bbase)
601 alt_font_base = bbase
603 alt_font_base_num = tex.getattribute(attr_curtfnt)
605 alt_font_base_num = tex.getattribute(attr_curjfnt)
607 local t = alt_font_table[alt_font_base_num]
609 for i,_ in pairs(t) do t[i]=nil end
611 t = alt_font_table_latex[bbase]
613 for i,_ in pairs(t) do
614 tex.sprint(cat_lp, '\\ltj@pickup@altfont@aux' .. dir .. '{' .. i .. '}')
620 function pickup_alt_font_a(size_str)
621 local t = alt_font_table_latex[alt_font_base]
623 for i,v in pairs(t) do
624 tex.sprint(cat_lp, '\\expandafter\\ltj@pickup@altfont@copy'
625 .. '\\csname ' .. i .. '/' .. size_str .. '\\endcsname{' .. i .. '}')
630 local function pickup_alt_font_class(class, afnt_num, afnt_chars)
631 local t = alt_font_table[alt_font_base_num]
632 local tx = font_metric_table[alt_font_base_num].chars
633 for i,v in pairs(tx) do
634 if v==class and afnt_chars[i] then t[i]=afnt_num end
639 function pickup_alt_font_b(afnt_num, afnt_base)
640 local t = alt_font_table[alt_font_base_num]
641 local ac = font_getfont(afnt_num).characters
642 if not t then t = {}; alt_font_table[alt_font_base_num] = t end
643 for i,v in pairs(alt_font_table_latex[alt_font_base]) do
644 if i == afnt_base then
645 for j,_ in pairs(v) do
647 if ac[j] then t[j]=afnt_num end
648 else -- -n (n>=1) means that the character class n,
649 -- which is defined in the JFM
650 pickup_alt_font_class(-j, afnt_num, ac)
659 ------------------------------------------------------------------------
661 ------------------------------------------------------------------------
663 function cleanup_size_cache()
664 --local gs, ke = 0, 0
665 for _,n in pairs(metrics) do
666 for i,t in pairs(n.size_cache) do
667 for _,v in pairs(t.char_type) do
668 for k,w in pairs(v) do
669 if type(k)=='number' then
670 --if w[1] then gs = gs + 1 else ke = ke + 1 end
678 --print('glue spec: ', gs, 'kern: ', ke)
682 ------------------------------------------------------------------------
684 ------------------------------------------------------------------------
686 local font_extra_info = font_extra_info -- key: fontnumber
687 local font_extra_basename = {} -- key: basename
689 -- IVS and vertical metrics
690 local prepare_fl_data
691 local supply_vkern_table
693 local fields = fontloader.fields
694 local function glyph_vmetric(glyph)
695 local flds = fields(glyph)
696 local vw, tsb, vk = nil, nil, nil
697 for _,i in ipairs(flds) do
698 if i=='vwidth' then vw = glyph.vwidth end
699 if i=='tsidebearing' then tsb = glyph.tsidebearing end
700 if i=='vkerns' then vk = glyph.vkerns end
705 local sort = table.sort
706 local function add_fl_table(dest, glyphs, unitable, asc_des, units)
707 local tg, glyphmin, glyphmax = glyphs.glyphs, 0, glyphs.glyphmax
708 for _,v in pairs(fields(glyphs)) do
709 if v=='glyphmin' then glyphmin = glyphs.glyphmin; break end
711 for i = glyphmin, glyphmax-1 do
715 for _,at in pairs(gv.altuni) do
716 local bu, vsel = at.unicode, at.variant
718 if vsel>=0xE0100 then vsel = vsel - 0xE0100 end
719 dest = dest or {}; dest[bu] = dest[bu] or {}
720 local uniq_flag = true
721 for i,_ in pairs(dest[bu]) do
722 if i==vs then uniq_flag = false; break end
725 dest[bu][vsel] = unitable[gv.name]
731 local vw, tsb, vk = glyph_vmetric(gv)
732 local gi = unitable[gv.name]
733 if gi and vw and vw~=asc_des then
734 -- We do not use tsidebearing, since (1) fontloader does not read VORG table
735 -- and (2) 'tsidebearing' doea not appear in the returned table by fontloader.fields.
736 -- Hence, we assume that vertical origin == ascender
737 -- (see capsule_glyph_tate in ltj-setwidth.lua)
738 dest = dest or {}; dest[gi] = dest[gi] or {}
739 dest[gi].vwidth = vw/units
744 local dest_vk = dest.vkerns or {}; dest.vkerns = dest_vk
745 for _,v in pairs(vk) do
746 if unitable[v.char] then
748 if type(vl)=='table' then
749 for _,vlt in pairs(vl) do
750 dest_vk[vlt] = dest_vk[vlt] or {}
751 dest_vk[vlt][gi] = dest_vk[vlt][gi] or {}
752 dest_vk[vlt][gi][unitable[v.char]] = v.off
755 dest_vk[vl] = dest_vk[vl] or {}
756 dest_vk[vl][gi] = dest_vk[vl][gi] or {}
757 dest_vk[vl][gi][unitable[v.char]] = v.off
766 prepare_fl_data = function (dest, id)
767 local fl = fontloader.open(id.filename)
768 local unicodes = id.resources.unicodes
770 dest = add_fl_table(dest, fl, unicodes,
771 fl.ascent + fl.descent, fl.units_per_em)
774 for _,v in pairs(fl.subfonts) do
775 dest = add_fl_table(dest, v, unicodes,
776 fl.ascent + fl.descent, fl.units_per_em)
779 fontloader.close(fl); collectgarbage("collect")
782 -- supply vkern table
783 supply_vkern_table = function(id, bname)
784 local bx = font_extra_basename[bname].vkerns
785 local lookuphash = id.resources.lookuphash
786 local desc = id.shared.rawdata.descriptions
787 if bx and lookuphash then
788 for i,v in pairs(bx) do
789 lookuphash[i] = lookuphash[i] or v
790 for j,w in pairs(v) do
791 desc[j].kerns = desc[j].kerns or {}
802 local checksum = file.checksum
804 local function prepare_extra_data_base(id)
805 if not id then return end
806 local bname = file.nameonly(id.filename or '')
807 if not font_extra_basename[bname] then
808 -- if the cache is present, read it
809 local newsum = checksum(id.filename) -- MD5 checksum of the fontfile
810 local v = "extra_" .. string.lower(file.nameonly(id.filename))
811 local dat = ltjb.load_cache(
813 function (t) return (t.version~=cache_ver) or (t.chksum~=newsum) end
815 -- if the cache is not found or outdated, save the cache
817 font_extra_basename[bname] = dat[1] or {}
820 dat = prepare_fl_data(dat, id)
821 font_extra_basename[bname] = dat or {}
824 chksum = checksum(id.filename),
832 local function prepare_extra_data_font(id, res)
833 if type(res)=='table' and res.shared then
834 font_extra_info[id] = font_extra_basename[file.nameonly(res.filename)]
837 luatexbase.add_to_callback(
838 'luaotfload.patch_font',
840 -- these function is executed one time per one fontfile
841 local bname = prepare_extra_data_base(tfmdata)
842 if bname then supply_vkern_table(tfmdata, bname) end
845 'ltj.prepare_extra_data', 1)
846 luatexbase.add_to_callback(
847 'luatexja.define_font',
848 function (res, name, size, id)
849 prepare_extra_data_font(id, res)
851 'ltj.prepare_extra_data', 1)
853 local nulltable = {} -- dummy
854 ltjr.vert_addfunc = function (n) font_extra_info[n] = nulltable end
856 local identifiers = fonts.hashes.identifiers
857 for i=1,font.nextid()-1 do
858 if identifiers[i] then
859 prepare_extra_data_base(identifiers[i])
860 prepare_extra_data_font(i,identifiers[i])
866 ------------------------------------------------------------------------
867 -- calculate vadvance
868 ------------------------------------------------------------------------
870 local function acc_feature(table_vadv, table_vorg, subtables, ft, already_vert)
871 for char_num,v in pairs(ft.shared.rawdata.descriptions) do
873 for sn, sv in pairs(v.slookups) do
874 if subtables[sn] and type(sv)=='table' then
877 = (table_vadv[char_num] or 0) + sv[4]
879 if sv[2]~=0 and not already_vert then
881 = (table_vorg[char_num] or 0) + sv[2]
889 luatexbase.add_to_callback(
890 "luatexja.define_jfont",
891 function (fmtable, fnum)
892 local vadv = {}; fmtable.v_advance = vadv
893 local vorg = {}; fmtable.v_origin = vorg
894 local ft = font_getfont(fnum)
896 if ft.specification then
897 for feat_name,v in pairs(ft.specification.features.normal) do
899 for _,i in pairs(ft.resources.sequences) do
900 if i.order[1]== feat_name and i.type == 'gpos_single' then
901 for _,st in pairs(i.subtables) do
908 acc_feature(vadv, vorg, subtables, ft,
909 ft.specification.features.normal.vrt2 or ft.specification.features.normal.vert)
910 for i,v in pairs(vadv) do
911 vadv[i]=vadv[i]/ft.units_per_em*fmtable.size
913 for i,v in pairs(vorg) do
914 vorg[i]=vorg[i]/ft.units_per_em*fmtable.size
918 end, 1, 'ltj.v_advance'
922 ------------------------------------------------------------------------
923 -- supply tounicode entries
924 ------------------------------------------------------------------------
926 local ltjr_prepare_cid_font = ltjr.prepare_cid_font
927 luatexbase.add_to_callback(
928 'luaotfload.patch_font',
930 if tfmdata.cidinfo then
931 local rd = ltjr_prepare_cid_font(tfmdata.cidinfo.registry, tfmdata.cidinfo.ordering)
933 local ru, rc = rd.resources.unicodes, rd.characters
934 for i,v in pairs(tfmdata.characters) do
935 local w = ru["Japan1." .. tostring(v.index)]
937 v.tounicode = v.tounicode or rc[w]. tounicode
945 'ltj.supply_tounicode', 1)
949 ------------------------------------------------------------------------
951 ------------------------------------------------------------------------
953 local getfont = (Dnode ~= node) and Dnode.getfont or function(n) return n.font end
954 local getchar = (Dnode ~= node) and Dnode.getchar or function(n) return n.char end
955 local get_dir_count = ltjd.get_dir_count
956 local is_ucs_in_japanese_char = ltjc.is_ucs_in_japanese_char_direct
957 local ensure_tex_attr = ltjb.ensure_tex_attr
958 local node_write = Dnode.write
960 local ITALIC = luatexja.icflag_table.ITALIC
961 -- EXT: italic correction
962 function append_italic()
963 local p = to_direct(tex.nest[tex.nest.ptr].tail)
964 local TEMP = node_new(id_kern)
965 if p and getid(p)==id_glyph then
966 if is_ucs_in_japanese_char(p) then
967 local j = font_metric_table[
968 has_attr(p, (get_dir_count()==dir_tate) and attr_curtfnt or attr_curjfnt)
970 local g = node_new(id_kern)
971 setfield(g, 'subtype', 1); set_attr(g, attr_icflag, ITALIC)
972 setfield(g, 'kern', j.char_type[find_char_class(getchar(p), j)].italic)
973 node_write(g); ensure_tex_attr(attr_icflag, 0)
976 local h = font_getfont(f) or font.fonts[f]
978 local g = node_new(id_kern)
979 setfield(g, 'subtype', 1); set_attr(g, attr_icflag, ITALIC)
980 setfield(g, 'kern', h.characters[getchar(p)].italic)
981 node_write(g); ensure_tex_attr(attr_icflag, 0)
989 ------------------------------------------------------------------------
990 -- VERT VARIANT TABLE
991 ------------------------------------------------------------------------
993 [0x2013]=0xFE32, [0x2014]=0xFE31, [0x2025]=0xFE30,
994 [0xFF08]=0xFE35, [0xFF09]=0xFE36, [0xFF5B]=0xFE37, [0xFF5D]=0xFE38,
995 [0x3014]=0xFE39, [0x3015]=0xFE3A, [0x3010]=0xFE3B, [0x3011]=0xFE3C,
996 [0x300A]=0xFE3D, [0x300B]=0xFE3E, [0x3008]=0xFE3F, [0x3009]=0xFE40,
997 [0x300C]=0xFE41, [0x300D]=0xFE42, [0x300E]=0xFE43, [0x300F]=0xFE44,
998 [0xFF3B]=0xFE47, [0xFF3D]=0xFE48, [0xFF3F]=0xFE33,
1000 setmetatable(vert_form_table, {__index=function(t,k) return k end});