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)
164 v[k] = {true, h, (w[5] and w[5]/sz or 0), FROM_JFM + (w[4] and w[4]/sz or 0)}
165 setfield(h, 'width', w[1])
166 setfield(h, 'stretch', w[2])
167 setfield(h, 'shrink', w[3])
168 setfield(h, 'stretch_order', 0)
169 setfield(h, 'shrink_order', 0)
171 for k,w in pairs(v.kern) do
172 local g = node_new(id_kern)
173 setfield(g, 'kern', w[1])
174 setfield(g, 'subtype', 1)
175 set_attr(g, attr_icflag, FROM_JFM)
176 v[k] = {false, g, w[2]/sz}
179 v.glue, v.kern = nil, nil
181 t.kanjiskip = mult_table(metrics[j].kanjiskip, sz)
182 t.xkanjiskip = mult_table(metrics[j].xkanjiskip,sz)
183 t.zw = round(metrics[j].zw*sz)
184 t.zh = round(metrics[j].zh*sz)
190 luatexbase.create_callback("luatexja.find_char_class", "data",
191 function (arg, fmtable, char)
195 local start_time_measure = ltjb.start_time_measure
196 local stop_time_measure = ltjb.stop_time_measure
197 local fcc_temp = { chars_cbcache = {} }
199 fcc_temp.chars_cbcache,
201 __index = function () return 0 end,
203 function find_char_class(c,m)
204 -- c: character code, m:
205 local r = (m or fcc_temp).chars_cbcache[c]
208 luatexbase.call_callback("luatexja.find_char_class", 0, m, c)
209 m.chars_cbcache[c or 0] = r
216 ------------------------------------------------------------------------
217 -- LOADING JAPANESE FONTS
218 ------------------------------------------------------------------------
222 local global_flag -- true if \globaljfont, false if \jfont
223 local function load_jfont_metric()
224 if jfm_file_name=='' then
225 ltjb.package_error('luatexja',
227 'To load and define a Japanese font, a JFM must be specified.'..
228 "The JFM 'ujis' will be used for now.")
231 for j,v in ipairs(metrics) do
232 if v.name==jfm_file_name then return j end
234 luatexja.load_lua('jfm-' .. jfm_file_name .. '.lua')
236 defjfm_res.name = jfm_file_name
237 table.insert(metrics, defjfm_res)
245 local utf8 = unicode.utf8
246 function jfontdefX(g, dir, csname)
247 jfm_dir, is_def_jfont = dir, true
248 cstemp = csname:sub( (utf8.byte(csname,1,1) == tex.escapechar) and 2 or 1, -1)
249 cstemp = cstemp:sub(1, ((cstemp:sub(-1,-1)==' ') and (cstemp:len()>=2)) and -2 or -1)
250 global_flag = g and '\\global' or ''
251 tex.sprint(cat_lp, '\\expandafter\\font\\csname ',
252 (cstemp==' ') and '\\space' or cstemp, '\\endcsname')
255 luatexbase.create_callback("luatexja.define_jfont", "data", function (ft, fn) return ft end)
258 local identifiers = fonts.hashes.identifiers
260 local j = load_jfont_metric(jfm_dir)
261 local fn = font.id(cstemp)
262 local f = font_getfont(fn)
264 ltjb.package_error('luatexja',
265 "bad JFM `" .. jfm_file_name .. "'",
266 'The JFM file you specified is not valid JFM file.\n'..
267 'So defining Japanese font is cancelled.')
268 tex.sprint(cat_lp, global_flag, '\\expandafter\\let\\csname ',
269 (cstemp==' ') and '\\space' or cstemp,
270 '\\endcsname=\\relax')
273 update_jfm_cache(j, f.size)
274 local ad = identifiers[fn].parameters
275 local sz = metrics[j].size_cache[f.size]
276 local fmtable = { jfm = j, size = f.size, var = jfm_var,
277 zw = sz.zw, zh = sz.zh,
278 ascent = ad.ascender,
279 descent = ad.descender,
280 chars = sz.chars, char_type = sz.char_type,
281 kanjiskip = sz.kanjiskip, xkanjiskip = sz.xkanjiskip,
283 vert_activated = is_vert_enabled,
286 fmtable = luatexbase.call_callback("luatexja.define_jfont", fmtable, fn)
287 font_metric_table[fn]=fmtable
288 tex.sprint(cat_lp, global_flag, '\\protected\\expandafter\\def\\csname ',
289 (cstemp==' ') and '\\space' or cstemp, '\\endcsname{\\ltj@cur'..
290 (jfm_dir == 'yoko' and 'j' or 't') .. 'fnt', fn, '\\relax}')
295 local get_dir_count = ltjd.get_dir_count
296 local dir_tate = luatexja.dir_table.dir_tate
297 local tex_get_attr = tex.getattribute
300 local a = font_metric_table[
301 tex_get_attr((get_dir_count()==dir_tate) and attr_curtfnt or attr_curjfnt)]
302 return a and a.zw or 0
305 local a = font_metric_table[
306 tex_get_attr((get_dir_count()==dir_tate) and attr_curtfnt or attr_curjfnt)]
307 return a and a.zw or 0
312 -- extract jfm_file_name and jfm_var
313 -- normalize position of 'jfm=' and 'jfmvar=' keys
314 local function extract_metric(name)
315 jfm_file_name = ''; jfm_var = ''
316 local tmp, index = name:sub(1, 5), 1
317 if tmp == 'file:' or tmp == 'name:' or tmp == 'psft:' then
320 local p = name:find(":", index); index = p and (p+1) or index
322 local l = name:len()+1
323 local q = name:find(";", index+1) or l
324 if name:sub(index, index+3)=='jfm=' and q>index+4 then
325 jfm_file_name = name:sub(index+4, q-1)
327 name = name:sub(1,index-1) .. name:sub(q+1)
329 name = name:sub(1,index-1)
332 elseif name:sub(index, index+6)=='jfmvar=' and q>index+6 then
333 jfm_var = name:sub(index+7, q-1)
335 name = name:sub(1,index-1) .. name:sub(q+1)
337 name = name:sub(1,index-1)
341 index = (l~=q) and (q+1) or nil
344 if jfm_file_name~='' then
345 local l = name:sub(-1)
347 .. ((l==':' or l==';') and '' or ';')
348 .. 'jfm=' .. jfm_file_name
350 name = name .. 'jfmvar=' .. jfm_var
353 if jfm_dir == 'tate' then
354 is_vert_enabled = (not name:match('-vert')) and (not name:match('-vrt2'))
355 if not name:match('vert') and not name:match('vrt2') then
356 name = name .. ';vert;vrt2'
359 is_vert_enabled = nil
364 -- define_font callback
365 local otfl_fdr = fonts.definers.read
366 local ltjr_font_callback = ltjr.font_callback
367 function luatexja.font_callback(name, size, id)
368 local new_name = is_def_jfont and extract_metric(name) or name
370 local res = ltjr_font_callback(new_name, size, id, otfl_fdr)
371 luatexbase.call_callback('luatexja.define_font', res, new_name, size, id)
372 -- this callback processes variation selector, so we execute it always
375 luatexbase.create_callback('luatexja.define_font', 'simple', function (n) return n end)
376 luatexbase.add_to_callback('define_font',luatexja.font_callback,"luatexja.font_callback", 1)
379 ------------------------------------------------------------------------
381 ------------------------------------------------------------------------
383 -- these function are called from ltj-latex.sty
384 local kyenc_list, ktenc_list = {}, {}
385 function add_kyenc_list(enc) kyenc_list[enc] = 'true ' end
386 function add_ktenc_list(enc) ktenc_list[enc] = 'true ' end
387 function is_kyenc(enc)
388 tex.sprint(cat_lp, '\\let\\ifin@\\if' .. (kyenc_list[enc] or 'false '))
390 function is_ktenc(enc)
391 tex.sprint(cat_lp, '\\let\\ifin@\\if' .. (ktenc_list[enc] or 'false '))
393 function is_kenc(enc)
394 tex.sprint(cat_lp, '\\let\\ifin@\\if'
395 .. (kyenc_list[enc] or ktenc_list[enc] or 'false '))
398 local kfam_list, Nkfam_list = {}, {}
399 function add_kfam_list(enc, fam)
400 if not kfam_list[enc] then kfam_list[enc] = {} end
401 kfam_list[enc][fam] = 'true '
403 function add_Nkfam_list(enc, fam)
404 if not Nkfam_list[enc] then Nkfam_list[enc] = {} end
405 Nkfam_list[enc][fam] = 'true '
407 function is_kfam(enc, fam)
408 tex.sprint(cat_lp, '\\let\\ifin@\\if'
409 .. (kfam_list[enc] and kfam_list[enc][fam] or 'false ')) end
410 function is_Nkfam(enc, fam)
411 tex.sprint(cat_lp, '\\let\\ifin@\\if'
412 .. (Nkfam_list[enc] and Nkfam_list[enc][fam] or 'false ')) end
414 local ffam_list, Nffam_list = {}, {}
415 function add_ffam_list(enc, fam)
416 if not ffam_list[enc] then ffam_list[enc] = {} end
417 ffam_list[enc][fam] = 'true '
419 function add_Nffam_list(enc, fam)
420 if not Nffam_list[enc] then Nffam_list[enc] = {} end
421 Nffam_list[enc][fam] = 'true '
423 function is_ffam(enc, fam)
424 tex.sprint(cat_lp, '\\let\\ifin@\\if'
425 .. (ffam_list[enc] and ffam_list[enc][fam] or 'false ')) end
426 function is_Nffam(enc, fam)
427 tex.sprint(cat_lp, '\\let\\ifin@\\if'
428 .. (Nffam_list[enc] and Nffam_list[enc][fam] or 'false ')) end
430 ------------------------------------------------------------------------
432 ------------------------------------------------------------------------
434 local alt_font_table = alt_font_table
435 local attr_curaltfnt = {}
436 local ucs_out = 0x110000
438 ------ for TeX interface
440 function set_alt_font(b,e,ind,bfnt)
441 -- ind: 新フォント, bfnt: 基底フォント
442 if b>e then b, e = e, b end
444 ltjb.package_error('luatexja',
445 'bad character range ([' .. b .. ',' .. e .. ']). ' ..
446 'I take the intersection with [0x80, 0x10ffff].')
447 b, e = math.max(0x80,b),math.min(ucs_out-1,e)
448 elseif e<0 then -- b<e<0
450 elseif b<0x80 or e>=ucs_out then
451 ltjb.package_warning('luatexja',
452 'bad character range ([' .. b .. ',' .. e .. ']). ' ..
453 'I take the intersection with [0x80, 0x10ffff].')
454 b, e = math.max(0x80,b), math.min(ucs_out-1,e)
456 if not alt_font_table[bfnt] then alt_font_table[bfnt]={} end
457 local t = alt_font_table[bfnt]
458 local ac = font_getfont(ind).characters
459 if bfnt==ind then ind = nil end -- ind == bfnt の場合はテーブルから削除
460 if e>=0 then -- character range
462 if ac[i]then t[i]=ind end
466 local tx = font_metric_table[bfnt].chars
467 for i,v in pairs(tx) do
468 if b<=v and v<=e and ac[i] then t[i]=ind end
474 function clear_alt_font(bfnt)
475 if alt_font_table[bfnt] then
476 local t = alt_font_table[bfnt]
477 for i,_ in pairs(t) do t[i]=nil; end
481 ------ used in ltjp.suppress_hyphenate_ja callback
482 function replace_altfont(pf, pc)
483 local a = alt_font_table[pf]
484 return a and a[pc] or pf
487 ------ for LaTeX interface
489 local alt_font_table_latex = {}
492 function clear_alt_font_latex(bbase)
493 local t = alt_font_table_latex[bbase]
495 for j,v in pairs(t) do t[j] = nil end
500 function set_alt_font_latex(b,e,ind,bbase)
501 -- ind: Alt font の enc/fam/ser/shape, bbase: 基底フォントの enc/fam/ser/shape
502 if b>e then b, e = e, b end
504 ltjb.package_error('luatexja',
505 'bad character range ([' .. b .. ',' .. e .. ']). ' ..
506 'I take the intersection with [0x80, 0x10ffff].')
507 b, e = math.max(0x80,b),math.min(ucs_out-1,e)
508 elseif e<0 then -- b<e<0
510 elseif b<0x80 or e>=ucs_out then
511 ltjb.package_warning('luatexja',
512 'bad character range ([' .. b .. ',' .. e .. ']). ' ..
513 'I take the intersection with [0x80, 0x10ffff].')
514 b, e = math.max(0x80,b), math.min(ucs_out-1,e)
517 if not alt_font_table_latex[bbase] then alt_font_table_latex[bbase]={} end
518 local t = alt_font_table_latex[bbase]
519 if not t[ind] then t[ind] = {} end
521 for j,v in pairs(t) do
522 if v[i] then -- remove old entry
523 if j~=ind then v[i]=nil end; break
528 -- remove the empty tables
529 for j,v in pairs(t) do
530 local flag_clear = true
531 for k,_ in pairs(v) do flag_clear = false; break end
532 if flag_clear then t[j]=nil end
534 if ind==bbase then t[bbase] = nil end
537 -- ここから先は 新 \selectfont の内部でしか実行されない
539 local alt_font_base, alt_font_base_num
542 function does_alt_set(bbase)
543 aftl_base = alt_font_table_latex[bbase]
544 tex.sprint(cat_lp, '\\if' .. (aftl_base and 'true' or 'false'))
547 function print_aftl_address()
548 tex.sprint(cat_lp, ';ltjaltfont' .. tostring(aftl_base):sub(8))
552 function output_alt_font_cmd(dir, bbase)
553 alt_font_base = bbase
555 alt_font_base_num = tex.getattribute(attr_curtfnt)
557 alt_font_base_num = tex.getattribute(attr_curjfnt)
559 local t = alt_font_table[alt_font_base_num]
561 for i,_ in pairs(t) do t[i]=nil end
563 t = alt_font_table_latex[bbase]
565 for i,_ in pairs(t) do
566 tex.sprint(cat_lp, '\\ltj@pickup@altfont@aux' .. dir .. '{' .. i .. '}')
572 function pickup_alt_font_a(size_str)
573 local t = alt_font_table_latex[alt_font_base]
575 for i,v in pairs(t) do
576 tex.sprint(cat_lp, '\\expandafter\\ltj@pickup@altfont@copy'
577 .. '\\csname ' .. i .. '/' .. size_str .. '\\endcsname{' .. i .. '}')
582 local function pickup_alt_font_class(class, afnt_num, afnt_chars)
583 local t = alt_font_table[alt_font_base_num]
584 local tx = font_metric_table[alt_font_base_num].chars
585 for i,v in pairs(tx) do
586 if v==class and afnt_chars[i] then t[i]=afnt_num end
591 function pickup_alt_font_b(afnt_num, afnt_base)
592 local t = alt_font_table[alt_font_base_num]
593 local ac = font_getfont(afnt_num).characters
594 if not t then t = {}; alt_font_table[alt_font_base_num] = t end
595 for i,v in pairs(alt_font_table_latex[alt_font_base]) do
596 if i == afnt_base then
597 for j,_ in pairs(v) do
599 if ac[j] then t[j]=afnt_num end
600 else -- -n (n>=1) means that the character class n,
601 -- which is defined in the JFM
602 pickup_alt_font_class(-j, afnt_num, ac)
611 ------------------------------------------------------------------------
613 ------------------------------------------------------------------------
615 function cleanup_size_cache()
616 --local gs, ke = 0, 0
617 for _,n in pairs(metrics) do
618 for i,t in pairs(n.size_cache) do
619 for _,v in pairs(t.char_type) do
620 for k,w in pairs(v) do
621 if type(k)=='number' then
622 --if w[1] then gs = gs + 1 else ke = ke + 1 end
630 --print('glue spec: ', gs, 'kern: ', ke)
634 ------------------------------------------------------------------------
636 ------------------------------------------------------------------------
638 local font_extra_info = font_extra_info -- key: fontnumber
639 local font_extra_basename = {} -- key: basename
641 -- IVS and vertical metrics
642 local prepare_fl_data
643 local supply_vkern_table
645 local fields = fontloader.fields
646 local function glyph_vmetric(glyph)
647 local flds = fields(glyph)
648 local vw, tsb, vk = nil, nil, nil
649 for _,i in ipairs(flds) do
650 if i=='vwidth' then vw = glyph.vwidth end
651 if i=='tsidebearing' then tsb = glyph.tsidebearing end
652 if i=='vkerns' then vk = glyph.vkerns end
657 local sort = table.sort
658 local function add_fl_table(dest, tg, unitable, glyphmax, asc_des, units)
659 for i = 0, glyphmax-1 do
663 for _,at in pairs(gv.altuni) do
664 local bu, vsel = at.unicode, at.variant
666 if vsel>=0xE0100 then vsel = vsel - 0xE0100 end
667 dest = dest or {}; dest[bu] = dest[bu] or {}
668 local uniq_flag = true
669 for i,_ in pairs(dest[bu]) do
670 if i==vs then uniq_flag = false; break end
673 dest[bu][vsel] = unitable[gv.name]
679 local vw, tsb, vk = glyph_vmetric(gv)
680 local gi = unitable[gv.name]
681 if gi and vw and vw~=asc_des then
682 -- We do not use tsidebearing, since (1) fontloader does not read VORG table
683 -- and (2) 'tsidebearing' doea not appear in the returned table by fontloader.fields.
684 -- Hence, we assume that vertical origin == ascender
685 -- (see capsule_glyph_tate in ltj-setwidth.lua)
686 dest = dest or {}; dest[gi] = dest[gi] or {}
687 dest[gi].vwidth = vw/units
692 local dest_vk = dest.vkerns or {}; dest.vkerns = dest_vk
693 for _,v in pairs(vk) do
694 if unitable[v.char] then
696 if type(vl)=='table' then
697 for _,vlt in pairs(vl) do
698 dest_vk[vlt] = dest_vk[vlt] or {}
699 dest_vk[vlt][gi] = dest_vk[vlt][gi] or {}
700 dest_vk[vlt][gi][unitable[v.char]] = v.off
703 dest_vk[vl] = dest_vk[vl] or {}
704 dest_vk[vl][gi] = dest_vk[vl][gi] or {}
705 dest_vk[vl][gi][unitable[v.char]] = v.off
714 prepare_fl_data = function (dest, id)
715 local fl = fontloader.open(id.filename)
716 local unicodes = id.resources.unicodes
718 dest = add_fl_table(dest, fl.glyphs, id.resources.unicodes, fl.glyphmax,
719 fl.ascent + fl.descent, fl.units_per_em)
722 for _,v in pairs(fl.subfonts) do
723 dest = add_fl_table(dest, v.glyphs, id.resources.unicodes, v.glyphmax,
724 fl.ascent + fl.descent, fl.units_per_em)
727 fontloader.close(fl); collectgarbage("collect")
730 -- supply vkern table
731 supply_vkern_table = function(id, bname)
732 local bx = font_extra_basename[bname].vkerns
733 local lookuphash = id.resources.lookuphash
734 local desc = id.shared.rawdata.descriptions
736 for i,v in pairs(bx) do
737 lookuphash[i] = lookuphash[i] or v
738 for j,w in pairs(v) do
739 desc[j].kerns = desc[j].kerns or {}
750 local checksum = file.checksum
752 local function prepare_extra_data_base(id)
753 if not id then return end
754 local bname = file.nameonly(id.filename or '')
755 if not font_extra_basename[bname] then
756 -- if the cache is present, read it
757 local newsum = checksum(id.filename) -- MD5 checksum of the fontfile
758 local v = "extra_" .. string.lower(file.nameonly(id.filename))
759 local dat = ltjb.load_cache(
761 function (t) return (t.version~=cache_ver) or (t.chksum~=newsum) end
763 -- if the cache is not found or outdated, save the cache
765 font_extra_basename[bname] = dat[1] or {}
768 dat = prepare_fl_data(dat, id)
769 font_extra_basename[bname] = dat or {}
772 chksum = checksum(id.filename),
780 local function prepare_extra_data_font(id, res)
781 if type(res)=='table' and res.shared then
782 font_extra_info[id] = font_extra_basename[file.nameonly(res.filename)]
785 luatexbase.add_to_callback(
786 'luaotfload.patch_font',
788 -- these function is executed one time per one fontfile
789 local bname = prepare_extra_data_base(tfmdata)
790 if bname then supply_vkern_table(tfmdata, bname) end
793 'ltj.prepare_extra_data', 1)
794 luatexbase.add_to_callback(
795 'luatexja.define_font',
796 function (res, name, size, id)
797 prepare_extra_data_font(id, res)
799 'ltj.prepare_extra_data', 1)
801 local nulltable = {} -- dummy
802 ltjr.vert_addfunc = function (n) font_extra_info[n] = nulltable end
804 local identifiers = fonts.hashes.identifiers
805 for i=1,font.nextid()-1 do
806 if identifiers[i] then
807 prepare_extra_data_base(identifiers[i])
808 prepare_extra_data_font(i,identifiers[i])
814 ------------------------------------------------------------------------
815 -- calculate vadvance
816 ------------------------------------------------------------------------
818 local function acc_feature(table_vadv, table_vorg, subtables, ft, already_vert)
819 for char_num,v in pairs(ft.shared.rawdata.descriptions) do
821 for sn, sv in pairs(v.slookups) do
822 if subtables[sn] and type(sv)=='table' then
825 = (table_vadv[char_num] or 0) + sv[4]
827 if sv[2]~=0 and not already_vert then
829 = (table_vorg[char_num] or 0) + sv[2]
837 luatexbase.add_to_callback(
838 "luatexja.define_jfont",
839 function (fmtable, fnum)
840 local vadv = {}; fmtable.v_advance = vadv
841 local vorg = {}; fmtable.v_origin = vorg
842 local ft = font_getfont(fnum)
844 if ft.specification then
845 for feat_name,v in pairs(ft.specification.features.normal) do
847 for _,i in pairs(ft.resources.sequences) do
848 if i.order[1]== feat_name and i.type == 'gpos_single' then
849 for _,st in pairs(i.subtables) do
856 acc_feature(vadv, vorg, subtables, ft,
857 ft.specification.features.normal.vrt2 or ft.specification.features.normal.vert)
858 for i,v in pairs(vadv) do
859 vadv[i]=vadv[i]/ft.units_per_em*fmtable.size
861 for i,v in pairs(vorg) do
862 vorg[i]=vorg[i]/ft.units_per_em*fmtable.size
866 end, 1, 'ltj.v_advance'
870 ------------------------------------------------------------------------
871 -- supply tounicode entries
872 ------------------------------------------------------------------------
874 local ltjr_prepare_cid_font = ltjr.prepare_cid_font
875 luatexbase.add_to_callback(
876 'luaotfload.patch_font',
878 if tfmdata.cidinfo then
879 local rd = ltjr_prepare_cid_font(tfmdata.cidinfo.registry, tfmdata.cidinfo.ordering)
881 local ru, rc = rd.resources.unicodes, rd.characters
882 for i,v in pairs(tfmdata.characters) do
883 local w = ru["Japan1." .. tostring(v.index)]
885 v.tounicode = v.tounicode or rc[w]. tounicode
893 'ltj.supply_tounicode', 1)
897 ------------------------------------------------------------------------
899 ------------------------------------------------------------------------
901 local getfont = (Dnode ~= node) and Dnode.getfont or function(n) return n.font end
902 local getchar = (Dnode ~= node) and Dnode.getchar or function(n) return n.char end
903 local get_dir_count = ltjd.get_dir_count
904 local is_ucs_in_japanese_char = ltjc.is_ucs_in_japanese_char_direct
905 local ensure_tex_attr = ltjb.ensure_tex_attr
906 local node_write = Dnode.write
908 local ITALIC = luatexja.icflag_table.ITALIC
909 -- EXT: italic correction
910 function append_italic()
911 local p = to_direct(tex.nest[tex.nest.ptr].tail)
912 local TEMP = node_new(id_kern)
913 if p and getid(p)==id_glyph then
914 if is_ucs_in_japanese_char(p) then
915 local j = font_metric_table[
916 has_attr(p, (get_dir_count()==dir_tate) and attr_curtfnt or attr_curjfnt)
918 local g = node_new(id_kern)
919 setfield(g, 'subtype', 1); set_attr(g, attr_icflag, ITALIC)
920 setfield(g, 'kern', j.char_type[find_char_class(getchar(p), j)].italic)
921 node_write(g); ensure_tex_attr(attr_icflag, 0)
924 local h = font_getfont(f) or font.fonts[f]
926 local g = node_new(id_kern)
927 setfield(g, 'subtype', 1); set_attr(g, attr_icflag, ITALIC)
928 setfield(g, 'kern', h.characters[getchar(p)].italic)
929 node_write(g); ensure_tex_attr(attr_icflag, 0)
937 ------------------------------------------------------------------------
938 -- VERT VARIANT TABLE
939 ------------------------------------------------------------------------
941 [0x2013]=0xFE32, [0x2014]=0xFE31, [0x2025]=0xFE30,
942 [0xFF08]=0xFE35, [0xFF09]=0xFE36, [0xFF5B]=0xFE37, [0xFF5D]=0xFE38,
943 [0x3014]=0xFE39, [0x3015]=0xFE3A, [0x3010]=0xFE3B, [0x3011]=0xFE3C,
944 [0x300A]=0xFE3D, [0x300B]=0xFE3E, [0x3008]=0xFE3F, [0x3009]=0xFE40,
945 [0x300C]=0xFE41, [0x300D]=0xFE42, [0x300E]=0xFE43, [0x300F]=0xFE44,
946 [0xFF3B]=0xFE47, [0xFF3D]=0xFE48, [0xFF3F]=0xFE33,
948 setmetatable(vert_form_table, {__index=function(t,k) return k end});