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 cat_lp = luatexbase.catcodetables['latex-package']
38 local FROM_JFM = luatexja.icflag_table.FROM_JFM
39 local tokenlib = luatexja.token
40 ------------------------------------------------------------------------
42 ------------------------------------------------------------------------
44 metrics={} -- this table stores all metric informations
45 font_metric_table={} -- [font number] -> jfm_name, jfm_var, size
47 luatexbase.create_callback("luatexja.load_jfm", "data", function (ft, jn) return ft end)
49 local jfm_file_name, jfm_var, jfm_ksp
51 local jfm_dir, is_def_jfont, is_vert_enabled
53 local function norm_val(a)
54 if (not a) or (a==0.) then
63 function define_jfm(t)
64 local real_char -- Does current character class have the 'real' character?
65 if t.dir~=jfm_dir then
66 defjfm_res= nil; return
67 elseif type(t.zw)~='number' or type(t.zh)~='number' then
68 defjfm_res= nil; return
70 t.char_type = {}; t.chars = {}
71 for i,v in pairs(t) do
72 if type(i) == 'number' then -- char_type
74 if i ~= 0 then defjfm_res= nil; return end
76 for j,w in pairs(v.chars) do
77 if type(w) == 'number' and w~=-1 then
78 elseif type(w) == 'string' and utf.len(w)==1 then
80 elseif type(w) == 'string' and utf.len(w)==2 and utf.sub(w,2) == '*' then
81 w = utf.byte(utf.sub(w,1,1))
83 if not t.chars[w] then
86 defjfm_res= nil; return
91 if type(v.align)~='string' then
92 v.align = 'left' -- left
94 if type(v.width)~='number' then
95 v.width = (jfm_dir=='tate') and 1.0
97 if type(v.height)~='number' then
98 v.height = (jfm_dir=='tate') and 0.0
100 if type(v.depth)~='number' then
101 v.depth = (jfm_dir=='tate') and 0.0
103 if type(v.italic)~='number' then
106 if type(v.left)~='number' then
109 if type(v.down)~='number' then
112 v.kern = v.kern or {}; v.glue = v.glue or {}
113 for j,x in pairs(v.glue) do
114 if v.kern[j] then defjfm_res= nil; return end
115 x.ratio, x[5] = (x.ratio or (x[5] and 0.5*(1+x[5]) or 0.5)), nil
116 x.priority, x[4] = (x.priority or x[4] or 0), nil
117 x.kanjiskip_natural = norm_val(x.kanjiskip_natural)
118 x.kanjiskip_stretch = norm_val(x.kanjiskip_stretch)
119 x.kanjiskip_shrink = norm_val(x.kanjiskip_shrink)
121 for j,x in pairs(v.kern) do
122 if type(x)=='number' then
124 elseif type(x)=='table' then
125 v.kern[j] = { x[1], ratio=x.ratio or (x[2] and 0.5*(1+x[2]) or 0.5) }
132 t = luatexbase.call_callback("luatexja.load_jfm", t, jfm_file_name)
137 local update_jfm_cache
139 local function mult_table(old,scale) -- modified from table.fastcopy
142 for k,v in next, old do
143 if type(v) == "table" then
144 new[k] = mult_table(v,scale)
145 elseif type(v) == "number" then
146 new[k] = round(v*scale)
154 update_jfm_cache = function (j,sz)
155 if metrics[j].size_cache[sz] then return end
156 --local TEMP = node_new(id_kern)
158 metrics[j].size_cache[sz] = t
159 t.chars = metrics[j].chars
160 t.char_type = mult_table(metrics[j].char_type, sz)
161 for i,v in pairs(t.char_type) do
162 v.align = (v.align=='left') and 0 or
163 ((v.align=='right') and 1 or 0.5)
164 if type(i) == 'number' then -- char_type
165 for k,w in pairs(v.glue) do
169 priority=FROM_JFM + w.priority/sz,
170 width = w[1], stretch = w[2], shrink = w[3],
171 kanjiskip_natural = w.kanjiskip_natural and w.kanjiskip_natural/sz,
172 kanjiskip_stretch = w.kanjiskip_stretch and w.kanjiskip_stretch/sz,
173 kanjiskip_shrink = w.kanjiskip_shrink and w.kanjiskip_shrink/sz,
176 for k,w in pairs(v.kern) do
177 local g = node_new(id_kern)
178 setfield(g, 'kern', w[1])
179 setfield(g, 'subtype', 1)
180 set_attr(g, attr_icflag, FROM_JFM)
181 v[k] = {g, ratio=w[2]/sz}
184 v.glue, v.kern = nil, nil
186 t.kanjiskip = mult_table(metrics[j].kanjiskip, sz)
187 t.xkanjiskip = mult_table(metrics[j].xkanjiskip,sz)
188 t.zw = round(metrics[j].zw*sz)
189 t.zh = round(metrics[j].zh*sz)
195 luatexbase.create_callback("luatexja.find_char_class", "data",
196 function (arg, fmtable, char)
200 local start_time_measure = ltjb.start_time_measure
201 local stop_time_measure = ltjb.stop_time_measure
202 local fcc_temp = { chars_cbcache = {} }
204 fcc_temp.chars_cbcache,
206 __index = function () return 0 end,
208 function find_char_class(c,m)
209 -- c: character code, m:
210 local r = (m or fcc_temp).chars_cbcache[c]
213 luatexbase.call_callback("luatexja.find_char_class", 0, m, c)
214 m.chars_cbcache[c or 0] = r
221 ------------------------------------------------------------------------
222 -- LOADING JAPANESE FONTS
223 ------------------------------------------------------------------------
227 local global_flag -- true if \globaljfont, false if \jfont
228 local function load_jfont_metric()
229 if jfm_file_name=='' then
230 ltjb.package_error('luatexja',
232 'To load and define a Japanese font, a JFM must be specified.'..
233 "The JFM 'ujis' will be used for now.")
236 for j,v in ipairs(metrics) do
237 if v.name==jfm_file_name then return j end
239 luatexja.load_lua('jfm-' .. jfm_file_name .. '.lua')
241 defjfm_res.name = jfm_file_name
242 table.insert(metrics, defjfm_res)
250 local utf8 = unicode.utf8
251 function jfontdefX(g, dir, csname)
252 jfm_dir, is_def_jfont = dir, true
253 cstemp = csname:sub( (utf8.byte(csname,1,1) == tex.escapechar) and 2 or 1, -1)
254 cstemp = cstemp:sub(1, ((cstemp:sub(-1,-1)==' ') and (cstemp:len()>=2)) and -2 or -1)
255 global_flag = g and '\\global' or ''
256 tex.sprint(cat_lp, '\\expandafter\\font\\csname ',
257 (cstemp==' ') and '\\space' or cstemp, '\\endcsname')
260 luatexbase.create_callback("luatexja.define_jfont", "data", function (ft, fn) return ft end)
263 local identifiers = fonts.hashes.identifiers
265 local j = load_jfont_metric(jfm_dir)
266 local fn = font.id(cstemp)
267 local f = font_getfont(fn)
269 ltjb.package_error('luatexja',
270 "bad JFM `" .. jfm_file_name .. "'",
271 'The JFM file you specified is not valid JFM file.\n'..
272 'So defining Japanese font is cancelled.')
273 tex.sprint(cat_lp, global_flag, '\\expandafter\\let\\csname ',
274 (cstemp==' ') and '\\space' or cstemp,
275 '\\endcsname=\\relax')
278 update_jfm_cache(j, f.size)
279 local ad = identifiers[fn].parameters
280 local sz = metrics[j].size_cache[f.size]
281 local fmtable = { jfm = j, size = f.size, var = jfm_var,
282 with_kanjiskip = jfm_ksp,
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 local is_braced = name:match('^{(.*)}$')
322 name= is_braced or name
323 jfm_file_name = ''; jfm_var = ''; jfm_ksp = true
324 local tmp, index = name:sub(1, 5), 1
325 if tmp == 'file:' or tmp == 'name:' or tmp == 'psft:' then
328 local p = name:find(":", index); index = p and (p+1) or index
330 local l = name:len()+1
331 local q = name:find(";", index+1) or l
332 if name:sub(index, index+3)=='jfm=' and q>index+4 then
333 jfm_file_name = name:sub(index+4, q-1)
335 name = name:sub(1,index-1) .. name:sub(q+1)
337 name = name:sub(1,index-1)
340 elseif name:sub(index, index+6)=='jfmvar=' and q>index+6 then
341 jfm_var = name:sub(index+7, q-1)
343 name = name:sub(1,index-1) .. name:sub(q+1)
345 name = name:sub(1,index-1)
349 index = (l~=q) and (q+1) or nil
352 if jfm_file_name~='' then
353 local l = name:sub(-1)
355 .. ((l==':' or l==';') and '' or ';')
356 .. 'jfm=' .. jfm_file_name
358 name = name .. 'jfmvar=' .. jfm_var
361 for x in string.gmatch (name, "[:;]([+%%-]?)ltjks") do
362 jfm_ksp = not (x=='-')
364 if jfm_dir == 'tate' then
365 is_vert_enabled = (not name:match('[:;]%-vert')) and (not name:match('[:;]%-vrt2'))
366 if not name:match('vert') and not name:match('vrt2') then
367 name = name .. ';+vert;+vrt2'
370 is_vert_enabled = nil
372 return is_braced and ('{' .. name .. '}') or name
375 -- define_font callback
376 local otfl_fdr = fonts.definers.read
377 local ltjr_font_callback = ltjr.font_callback
378 function luatexja.font_callback(name, size, id)
379 local new_name = is_def_jfont and extract_metric(name) or name
381 --local res = otfl_fdr(new_name, size, id)
382 local res = ltjr_font_callback(new_name, size, id, otfl_fdr)
383 luatexbase.call_callback('luatexja.define_font', res, new_name, size, id)
384 -- this callback processes variation selector, so we execute it always
387 luatexbase.create_callback('luatexja.define_font', 'simple', function (n) return n end)
388 luatexbase.add_to_callback('define_font',luatexja.font_callback,"luatexja.font_callback", 1)
391 ------------------------------------------------------------------------
393 ------------------------------------------------------------------------
395 -- these function are called from ltj-latex.sty
396 local fenc_list, kyenc_list, ktenc_list = {}, {}, {}
397 function add_fenc_list(enc) fenc_list[enc] = 'true ' end
398 function add_kyenc_list(enc) kyenc_list[enc] = 'true ' end
399 function add_ktenc_list(enc) ktenc_list[enc] = 'true ' end
400 function is_kyenc(enc)
401 tex.sprint(cat_lp, '\\let\\ifin@\\if' .. (kyenc_list[enc] or 'false '))
403 function is_ktenc(enc)
404 tex.sprint(cat_lp, '\\let\\ifin@\\if' .. (ktenc_list[enc] or 'false '))
406 function is_kenc(enc)
407 tex.sprint(cat_lp, '\\let\\ifin@\\if'
408 .. (kyenc_list[enc] or ktenc_list[enc] or 'false '))
411 local kfam_list, Nkfam_list = {}, {}
412 function add_kfam(fam)
415 function search_kfam(fam, use_fd)
416 if kfam_list[fam] then
417 tex.sprint(cat_lp, '\\let\\ifin@\\iftrue '); return
418 elseif Nkfam_list[fam] then
419 tex.sprint(cat_lp, '\\let\\ifin@\\iffalse '); return
421 for i,_ in pairs(kyenc_list) do
422 if kpse.find_file(string.lower(i)..fam..'.fd') then
423 tex.sprint(cat_lp, '\\let\\ifin@\\iftrue '); return
426 for i,_ in pairs(ktenc_list) do
427 if kpse.find_file(string.lower(i)..fam..'.fd') then
428 tex.sprint(cat_lp, '\\let\\ifin@\\iftrue '); return
431 Nkfam_list[fam]=true; tex.sprint(cat_lp, '\\let\\ifin@\\iffalse '); return
433 tex.sprint(cat_lp, '\\let\\ifin@\\iffalse '); return
436 local ffam_list, Nffam_list = {}, {}
437 function is_ffam(fam)
438 tex.sprint(cat_lp, '\\let\\ifin@\\if' .. (ffam_list[fam] or 'false '))
440 function add_ffam(fam)
441 ffam_list[fam]='true '
443 function search_ffam_declared()
445 for i,_ in pairs(fenc_list) do
446 s = s .. '\\cdp@elt{' .. i .. '}'
448 tex.sprint(cat_lp, s)
450 function search_ffam_fd(fam)
451 if Nffam_list[fam] then
452 tex.sprint(cat_lp, '\\let\\ifin@\\iffalse '); return
454 for i,_ in pairs(fenc_list) do
455 if kpse.find_file(string.lower(i)..fam..'.fd') then
456 tex.sprint(cat_lp, '\\let\\ifin@\\iftrue '); return
459 Nffam_list[fam]=true; tex.sprint(cat_lp, '\\let\\ifin@\\iffalse '); return
464 ------------------------------------------------------------------------
466 ------------------------------------------------------------------------
468 local alt_font_table = alt_font_table
469 local attr_curaltfnt = {}
470 local ucs_out = 0x110000
472 ------ for TeX interface
474 function set_alt_font(b,e,ind,bfnt)
475 -- ind: 新フォント, bfnt: 基底フォント
476 if b>e then b, e = e, b end
478 ltjb.package_error('luatexja',
479 'bad character range ([' .. b .. ',' .. e .. ']). ' ..
480 'I take the intersection with [0x80, 0x10ffff].')
481 b, e = math.max(0x80,b),math.min(ucs_out-1,e)
482 elseif e<0 then -- b<e<0
484 elseif b<0x80 or e>=ucs_out then
485 ltjb.package_warning('luatexja',
486 'bad character range ([' .. b .. ',' .. e .. ']). ' ..
487 'I take the intersection with [0x80, 0x10ffff].')
488 b, e = math.max(0x80,b), math.min(ucs_out-1,e)
490 if not alt_font_table[bfnt] then alt_font_table[bfnt]={} end
491 local t = alt_font_table[bfnt]
492 local ac = font_getfont(ind).characters
493 if bfnt==ind then ind = nil end -- ind == bfnt の場合はテーブルから削除
494 if e>=0 then -- character range
496 if ac[i]then t[i]=ind end
500 local tx = font_metric_table[bfnt].chars
501 for i,v in pairs(tx) do
502 if b<=v and v<=e and ac[i] then t[i]=ind end
508 function clear_alt_font(bfnt)
509 if alt_font_table[bfnt] then
510 local t = alt_font_table[bfnt]
511 for i,_ in pairs(t) do t[i]=nil; end
515 ------ used in ltjp.suppress_hyphenate_ja callback
516 function replace_altfont(pf, pc)
517 local a = alt_font_table[pf]
518 return a and a[pc] or pf
521 ------ for LaTeX interface
523 local alt_font_table_latex = {}
526 function clear_alt_font_latex(bbase)
527 local t = alt_font_table_latex[bbase]
529 for j,v in pairs(t) do t[j] = nil end
534 function set_alt_font_latex(b,e,ind,bbase)
535 -- ind: Alt font の enc/fam/ser/shape, bbase: 基底フォントの enc/fam/ser/shape
536 if b>e then b, e = e, b end
538 ltjb.package_error('luatexja',
539 'bad character range ([' .. b .. ',' .. e .. ']). ' ..
540 'I take the intersection with [0x80, 0x10ffff].')
541 b, e = math.max(0x80,b),math.min(ucs_out-1,e)
542 elseif e<0 then -- b<e<0
544 elseif b<0x80 or e>=ucs_out then
545 ltjb.package_warning('luatexja',
546 'bad character range ([' .. b .. ',' .. e .. ']). ' ..
547 'I take the intersection with [0x80, 0x10ffff].')
548 b, e = math.max(0x80,b), math.min(ucs_out-1,e)
551 if not alt_font_table_latex[bbase] then alt_font_table_latex[bbase]={} end
552 local t = alt_font_table_latex[bbase]
553 if not t[ind] then t[ind] = {} end
555 for j,v in pairs(t) do
556 if v[i] then -- remove old entry
557 if j~=ind then v[i]=nil end; break
562 -- remove the empty tables
563 for j,v in pairs(t) do
564 local flag_clear = true
565 for k,_ in pairs(v) do flag_clear = false; break end
566 if flag_clear then t[j]=nil end
568 if ind==bbase then t[bbase] = nil end
571 -- ここから先は 新 \selectfont の内部でしか実行されない
573 local alt_font_base, alt_font_base_num
576 function does_alt_set(bbase)
577 aftl_base = alt_font_table_latex[bbase]
578 tex.sprint(cat_lp, '\\if' .. (aftl_base and 'true' or 'false'))
581 function print_aftl_address()
582 tex.sprint(cat_lp, ';ltjaltfont' .. tostring(aftl_base):sub(8))
586 function output_alt_font_cmd(dir, bbase)
587 alt_font_base = bbase
589 alt_font_base_num = tex.getattribute(attr_curtfnt)
591 alt_font_base_num = tex.getattribute(attr_curjfnt)
593 local t = alt_font_table[alt_font_base_num]
595 for i,_ in pairs(t) do t[i]=nil end
597 t = alt_font_table_latex[bbase]
599 for i,_ in pairs(t) do
600 tex.sprint(cat_lp, '\\ltj@pickup@altfont@aux' .. dir .. '{' .. i .. '}')
606 function pickup_alt_font_a(size_str)
607 local t = alt_font_table_latex[alt_font_base]
609 for i,v in pairs(t) do
610 tex.sprint(cat_lp, '\\expandafter\\ltj@pickup@altfont@copy'
611 .. '\\csname ' .. i .. '/' .. size_str .. '\\endcsname{' .. i .. '}')
616 local function pickup_alt_font_class(class, afnt_num, afnt_chars)
617 local t = alt_font_table[alt_font_base_num]
618 local tx = font_metric_table[alt_font_base_num].chars
619 for i,v in pairs(tx) do
620 if v==class and afnt_chars[i] then t[i]=afnt_num end
625 function pickup_alt_font_b(afnt_num, afnt_base)
626 local t = alt_font_table[alt_font_base_num]
627 local ac = font_getfont(afnt_num).characters
628 if not t then t = {}; alt_font_table[alt_font_base_num] = t end
629 for i,v in pairs(alt_font_table_latex[alt_font_base]) do
630 if i == afnt_base then
631 for j,_ in pairs(v) do
633 if ac[j] then t[j]=afnt_num end
634 else -- -n (n>=1) means that the character class n,
635 -- which is defined in the JFM
636 pickup_alt_font_class(-j, afnt_num, ac)
645 ------------------------------------------------------------------------
647 ------------------------------------------------------------------------
649 function cleanup_size_cache()
650 --local gs, ke = 0, 0
651 for _,n in pairs(metrics) do
652 for i,t in pairs(n.size_cache) do
653 for _,v in pairs(t.char_type) do
654 for k,w in pairs(v) do
655 if type(k)=='number' then
656 --if w[1] then gs = gs + 1 else ke = ke + 1 end
657 if w[1] then node_free(w[1]) end
667 ------------------------------------------------------------------------
669 ------------------------------------------------------------------------
671 local font_extra_info = font_extra_info -- key: fontnumber
672 local font_extra_basename = {} -- key: basename
674 -- IVS and vertical metrics
675 local prepare_fl_data
676 local supply_vkern_table
678 local fields = fontloader.fields
679 local function glyph_vmetric(glyph)
680 local flds = fields(glyph)
681 local vw, tsb, vk = nil, nil, nil
682 for _,i in ipairs(flds) do
683 if i=='vwidth' then vw = glyph.vwidth end
684 if i=='tsidebearing' then tsb = glyph.tsidebearing end
685 if i=='vkerns' then vk = glyph.vkerns end
690 local sort = table.sort
691 local function add_fl_table(dest, glyphs, unitable, asc_des, units)
692 local tg, glyphmin, glyphmax = glyphs.glyphs, 0, glyphs.glyphmax
693 for _,v in pairs(fields(glyphs)) do
694 if v=='glyphmin' then glyphmin, glyphmax = glyphs.glyphmin, glyphmax+1; break end
696 for i = glyphmin, glyphmax-1 do
700 for _,at in pairs(gv.altuni) do
701 local bu, vsel = at.unicode, at.variant
703 if vsel>=0xE0100 then vsel = vsel - 0xE0100 end
704 dest = dest or {}; dest[bu] = dest[bu] or {}
705 local uniq_flag = true
706 for i,_ in pairs(dest[bu]) do
707 if i==vs then uniq_flag = false; break end
710 dest[bu][vsel] = unitable[gv.name]
716 local vw, tsb, vk = glyph_vmetric(gv)
717 local gi = unitable[gv.name]
718 if gi and vw and vw~=asc_des then
719 -- We do not use tsidebearing, since (1) fontloader does not read VORG table
720 -- and (2) 'tsidebearing' doea not appear in the returned table by fontloader.fields.
721 -- Hence, we assume that vertical origin == ascender
722 -- (see capsule_glyph_tate in ltj-setwidth.lua)
723 dest = dest or {}; dest[gi] = dest[gi] or {}
724 dest[gi].vwidth = vw/units
729 local dest_vk = dest.vkerns or {}; dest.vkerns = dest_vk
730 for _,v in pairs(vk) do
731 if unitable[v.char] then
733 if type(vl)=='table' then
734 for _,vlt in pairs(vl) do
735 dest_vk[vlt] = dest_vk[vlt] or {}
736 dest_vk[vlt][gi] = dest_vk[vlt][gi] or {}
737 dest_vk[vlt][gi][unitable[v.char]] = v.off
740 dest_vk[vl] = dest_vk[vl] or {}
741 dest_vk[vl][gi] = dest_vk[vl][gi] or {}
742 dest_vk[vl][gi][unitable[v.char]] = v.off
751 prepare_fl_data = function (dest, id)
752 local fl = fontloader.open(id.filename)
753 local unicodes = id.resources.unicodes
755 dest = add_fl_table(dest, fl, unicodes,
756 fl.ascent + fl.descent, fl.units_per_em)
759 for _,v in pairs(fl.subfonts) do
760 dest = add_fl_table(dest, v, unicodes,
761 fl.ascent + fl.descent, fl.units_per_em)
764 fontloader.close(fl); collectgarbage("collect")
767 -- supply vkern table
768 supply_vkern_table = function(id, bname)
769 local bx = font_extra_basename[bname].vkerns
770 local lookuphash = id.resources.lookuphash
771 local desc = id.shared.rawdata.descriptions
772 if bx and lookuphash then
773 for i,v in pairs(bx) do
774 lookuphash[i] = lookuphash[i] or v
775 for j,w in pairs(v) do
776 desc[j].kerns = desc[j].kerns or {}
787 local checksum = file.checksum
789 local function prepare_extra_data_base(id)
790 if not id then return end
791 local bname = file.nameonly(id.filename or '')
792 if not font_extra_basename[bname] then
793 -- if the cache is present, read it
794 local newsum = checksum(id.filename) -- MD5 checksum of the fontfile
795 local v = "extra_" .. string.lower(file.nameonly(id.filename))
796 local dat = ltjb.load_cache(
798 function (t) return (t.version~=cache_ver) or (t.chksum~=newsum) end
800 -- if the cache is not found or outdated, save the cache
802 font_extra_basename[bname] = dat[1] or {}
805 dat = prepare_fl_data(dat, id)
806 font_extra_basename[bname] = dat or {}
809 chksum = checksum(id.filename),
817 local function prepare_extra_data_font(id, res)
818 if type(res)=='table' and res.shared then
819 font_extra_info[id] = font_extra_basename[file.nameonly(res.filename)]
822 luatexbase.add_to_callback(
823 'luaotfload.patch_font',
825 -- these function is executed one time per one fontfile
826 local bname = prepare_extra_data_base(tfmdata)
827 if bname then supply_vkern_table(tfmdata, bname) end
830 'ltj.prepare_extra_data', 1)
831 luatexbase.add_to_callback(
832 'luatexja.define_font',
833 function (res, name, size, id)
834 prepare_extra_data_font(id, res)
836 'ltj.prepare_extra_data', 1)
838 local nulltable = {} -- dummy
839 ltjr.vert_addfunc = function (n) font_extra_info[n] = nulltable end
841 local identifiers = fonts.hashes.identifiers
842 for i=1,font.nextid()-1 do
843 if identifiers[i] then
844 prepare_extra_data_base(identifiers[i])
845 prepare_extra_data_font(i,identifiers[i])
851 ------------------------------------------------------------------------
852 -- calculate vadvance
853 ------------------------------------------------------------------------
855 local function acc_feature(table_vadv, table_vorg, subtables, ft, already_vert)
856 for char_num,v in pairs(ft.shared.rawdata.descriptions) do
858 for sn, sv in pairs(v.slookups) do
859 if subtables[sn] and type(sv)=='table' then
862 = (table_vadv[char_num] or 0) + sv[4]
864 if sv[2]~=0 and not already_vert then
866 = (table_vorg[char_num] or 0) + sv[2]
874 luatexbase.add_to_callback(
875 "luatexja.define_jfont",
876 function (fmtable, fnum)
877 local vadv = {}; fmtable.v_advance = vadv
878 local vorg = {}; fmtable.v_origin = vorg
879 local ft = font_getfont(fnum)
881 if ft.specification then
882 for feat_name,v in pairs(ft.specification.features.normal) do
884 for _,i in pairs(ft.resources.sequences) do
885 if i.order[1]== feat_name and i.type == 'gpos_single' then
886 for _,st in pairs(i.subtables) do
893 acc_feature(vadv, vorg, subtables, ft,
894 ft.specification.features.normal.vrt2 or ft.specification.features.normal.vert)
895 for i,v in pairs(vadv) do
896 vadv[i]=vadv[i]/ft.units_per_em*fmtable.size
898 for i,v in pairs(vorg) do
899 vorg[i]=vorg[i]/ft.units_per_em*fmtable.size
903 end, 1, 'ltj.v_advance'
907 ------------------------------------------------------------------------
908 -- supply tounicode entries
909 ------------------------------------------------------------------------
911 local ltjr_prepare_cid_font = ltjr.prepare_cid_font
912 luatexbase.add_to_callback(
913 'luaotfload.patch_font',
915 if tfmdata.cidinfo then
916 local rd = ltjr_prepare_cid_font(tfmdata.cidinfo.registry, tfmdata.cidinfo.ordering)
918 local ru, rc = rd.resources.unicodes, rd.characters
919 for i,v in pairs(tfmdata.characters) do
920 local w = ru["Japan1." .. tostring(v.index)]
922 v.tounicode = v.tounicode or rc[w]. tounicode
930 'ltj.supply_tounicode', 1)
934 ------------------------------------------------------------------------
936 ------------------------------------------------------------------------
938 local getfont = (Dnode ~= node) and Dnode.getfont or function(n) return n.font end
939 local getchar = (Dnode ~= node) and Dnode.getchar or function(n) return n.char end
940 local get_dir_count = ltjd.get_dir_count
941 local is_ucs_in_japanese_char = ltjc.is_ucs_in_japanese_char_direct
942 local ensure_tex_attr = ltjb.ensure_tex_attr
943 local node_write = Dnode.write
946 if status.luatex_version>=89 then
947 new_ic_kern = function(g) return node_new(id_kern,3) end
949 local ITALIC = luatexja.icflag_table.ITALIC
950 new_ic_kern = function()
951 local g = node_new(id_kern)
952 setfield(g, 'subtype', 1); set_attr(g, attr_icflag, ITALIC)
956 -- EXT: italic correction
957 function append_italic()
958 local p = to_direct(tex.nest[tex.nest.ptr].tail)
959 local TEMP = node_new(id_kern)
960 if p and getid(p)==id_glyph then
961 if is_ucs_in_japanese_char(p) then
962 local j = font_metric_table[
963 has_attr(p, (get_dir_count()==dir_tate) and attr_curtfnt or attr_curjfnt)
965 local g = new_ic_kern()
966 setfield(g, 'kern', j.char_type[find_char_class(getchar(p), j)].italic)
967 node_write(g); ensure_tex_attr(attr_icflag, 0)
970 local h = font_getfont(f) or font.fonts[f]
972 local g = new_ic_kern()
973 if h.characters[getchar(p)] and h.characters[getchar(p)].italic then
974 setfield(g, 'kern', h.characters[getchar(p)].italic)
975 node_write(g); ensure_tex_attr(attr_icflag, 0)
984 ------------------------------------------------------------------------
985 -- VERT VARIANT TABLE
986 ------------------------------------------------------------------------
988 [0x2013]=0xFE32, [0x2014]=0xFE31, [0x2025]=0xFE30,
989 [0xFF08]=0xFE35, [0xFF09]=0xFE36, [0xFF5B]=0xFE37, [0xFF5D]=0xFE38,
990 [0x3014]=0xFE39, [0x3015]=0xFE3A, [0x3010]=0xFE3B, [0x3011]=0xFE3C,
991 [0x300A]=0xFE3D, [0x300B]=0xFE3E, [0x3008]=0xFE3F, [0x3009]=0xFE40,
992 [0x300C]=0xFE41, [0x300D]=0xFE42, [0x300E]=0xFE43, [0x300F]=0xFE44,
993 [0xFF3B]=0xFE47, [0xFF3D]=0xFE48, [0xFF3F]=0xFE33,
995 setmetatable(vert_form_table, {__index=function(t,k) return k end});