4 luatexbase.provides_module({
5 name = 'luatexja.jfmglue',
7 description = 'Insertion process of JFM glues, [x]kanjiskip and others',
9 luatexja.jfmglue = luatexja.jfmglue or {}
11 luatexja.load_module('base'); local ltjb = luatexja.base
12 luatexja.load_module('stack'); local ltjs = luatexja.stack
13 luatexja.load_module('jfont'); local ltjf = luatexja.jfont
14 luatexja.load_module('direction'); local ltjd = luatexja.direction
15 luatexja.load_module('setwidth'); local ltjw = luatexja.setwidth
16 luatexja.load_module('lotf_aux'); local ltju = luatexja.lotf_aux
19 --local to_node = node.direct.tonode
20 --local to_direct = node.direct.todirect
22 local setfield = node.direct.setfield
23 local setglue = luatexja.setglue
24 local getfield = node.direct.getfield
25 local getid = node.direct.getid
26 local getfont = node.direct.getfont
27 local getlist = node.direct.getlist
28 local getchar = node.direct.getchar
29 local getsubtype = node.direct.getsubtype
32 local lang_ja = luatexja.lang_ja
33 local getlang = node.direct.getlang
34 -- glyph with font number 0 (\nullfont) is always considered an ALchar node
36 and function (n) return (getlang(n)==lang_ja)and(getfont(n)~=0) end
37 or function (n) return (getfield(n,'lang')==lang_ja)and(getfont(n)~=0) end
40 local has_attr = node.direct.has_attribute
41 local set_attr = node.direct.set_attribute
42 local insert_before = node.direct.insert_before
43 local insert_after = node.direct.insert_after
44 local node_next = node.direct.getnext
45 local ltjd_make_dir_whatsit = ltjd.make_dir_whatsit
46 local ltjf_font_metric_table = ltjf.font_metric_table
47 local ltjf_find_char_class = ltjf.find_char_class
48 local node_new = node.direct.new
49 local node_copy = node.direct.copy
50 local node_tail = node.direct.tail
51 local node_free = node.direct.free
52 local node_remove = node.direct.remove
54 local id_glyph = node.id('glyph')
55 local id_hlist = node.id('hlist')
56 local id_vlist = node.id('vlist')
57 local id_rule = node.id('rule')
58 local id_ins = node.id('ins')
59 local id_mark = node.id('mark')
60 local id_adjust = node.id('adjust')
61 local id_disc = node.id('disc')
62 local id_whatsit = node.id('whatsit')
63 local id_math = node.id('math')
64 local id_glue = node.id('glue')
65 local id_kern = node.id('kern')
66 local id_penalty = node.id('penalty')
68 local id_jglyph = 512 -- Japanese character
69 local id_box_like = 256 -- vbox, shifted hbox
70 local id_pbox = 257 -- already processed nodes (by \unhbox)
71 local id_pbox_w = 258 -- cluster which consists of a whatsit
72 local sid_user = node.subtype('user_defined')
74 local ITALIC = luatexja.icflag_table.ITALIC
75 local PACKED = luatexja.icflag_table.PACKED
76 local KINSOKU = luatexja.icflag_table.KINSOKU
77 local FROM_JFM = luatexja.icflag_table.FROM_JFM
78 local PROCESSED = luatexja.icflag_table.PROCESSED
79 local IC_PROCESSED = luatexja.icflag_table.IC_PROCESSED
80 local BOXBDD = luatexja.icflag_table.BOXBDD
81 local PROCESSED_BEGIN_FLAG = luatexja.icflag_table.PROCESSED_BEGIN_FLAG
83 local attr_icflag = luatexbase.attributes['ltj@icflag']
86 local table_current_stack
91 local set_np_xspc_jachar, set_np_xspc_alchar
92 local set_np_xspc_jachar_hbox
94 local ltjs_orig_char_table = ltjs.orig_char_table
96 local function get_attr_icflag(p)
97 return (has_attr(p, attr_icflag) or 0)%PROCESSED_BEGIN_FLAG
100 -------------------- Helper functions
102 -- This function is called only for acquiring `special' characters.
103 local function fast_find_char_class(c,m)
104 return m.chars[c] or 0
108 local slow_find_char_class
110 local start_time_measure = ltjb.start_time_measure
111 local stop_time_measure = ltjb.stop_time_measure
112 slow_find_char_class = function (c, m, oc)
113 local cls = ltjf_find_char_class(oc, m)
114 if oc~=c and c and cls==0 then
115 return ltjf_find_char_class(c, m)
122 local function skip_table_to_glue(n)
123 local g, st = node_new(id_glue), ltjs.fast_get_stack_skip(n)
124 setglue(g, st.width, st.stretch, st.shrink, st.stretch_order, st.shrink_order)
125 return g, (st.width==1073741823)
132 local setpenalty = node.direct.setpenalty or function(n, a) setfield(n,'penalty',a) end
133 local getpenalty = node.direct.getpenalty or function(n) return getfield(n,'penalty') end
134 function add_penalty(p,e)
135 local pp = getpenalty(p)
136 if (pp>-10000) and (pp<10000) then
137 if e>=10000 then setpenalty(p, 10000)
138 elseif e<=-10000 then setpenalty(p, -10000)
141 if pp>=10000 then setpenalty(p, 10000)
142 elseif pp<=-10000 then setpenalty(p, -10000)
143 else setpenalty(p, pp) end
150 luatexja.jfmglue.diffmet_rule = math.two_paverage
151 function math.two_add(a,b) return a+b end
152 function math.two_average(a,b) return (a+b)*0.5 end
153 function math.two_paverage(a,b) return (a+b)/2 end
154 function math.two_pleft(a,b) return a end
155 function math.two_pright(a,b) return b end
157 local head -- the head of current list
160 local widow_Bp, widow_Np -- \jcharwidowpenalty 挿入位置管理用
162 local non_ihb_flag -- JFM グルー挿入抑止用 flag
163 -- false: \inhibitglue 指定時 true: それ以外
165 -------------------- hlist 内の文字の検索
167 local first_char, last_char, find_first_char
170 local ltjd_glyph_from_packed = ltjd.glyph_from_packed
171 local function check_box(box_ptr, box_end)
172 local p = box_ptr; local found_visible_node = false
174 find_first_char = false; last_char = nil
177 while p and p~=box_end do
179 if pid==id_kern and getsubtype(p)==2 then
180 p = node_next(node_next(node_next(p))); pid = getid(p) -- p must be glyph_node
182 if pid==id_glyph then
184 if find_first_char then
185 first_char = p; find_first_char = false
187 last_char = p; found_visible_node = true; p=node_next(p)
188 if (not p) or p==box_end then
189 return found_visible_node
191 until getid(p)~=id_glyph
192 pid = getid(p) -- p must be non-nil
195 local pa = get_attr_icflag(p)
196 if pa==IC_PROCESSED then
198 elseif getsubtype(p)==2 then
199 p = node_next(node_next(p));
200 -- Note that another node_next will be executed outside this if-statement.
202 found_visible_node = true
203 find_first_char = false; last_char = nil
205 elseif pid==id_hlist then
206 if PACKED == get_attr_icflag(p) then
207 local s = ltjd_glyph_from_packed(p)
208 if find_first_char then
209 first_char = s; find_first_char = false
211 last_char = s; found_visible_node = true
213 if getfield(p, 'shift')==0 then
215 if check_box(getlist(p), nil) then found_visible_node = true end
216 find_first_char = false
218 find_first_char = false; last_char = nil
221 elseif pid==id_math then
222 if find_first_char then
223 first_char = p; find_first_char = false
225 last_char = p; found_visible_node = true
226 elseif pid==id_rule and get_attr_icflag(p)==PACKED then
228 elseif not (pid==id_ins or pid==id_mark
229 or pid==id_adjust or pid==id_whatsit
230 or pid==id_penalty) then
231 found_visible_node = true
232 find_first_char = false; last_char = nil
236 return found_visible_node
239 check_box_high = function (Nx, box_ptr, box_end)
240 first_char = nil; last_char = nil; find_first_char = true
241 if check_box(box_ptr, box_end) then
242 local first_char = first_char
244 if getid(first_char)==id_glyph then
245 if if_lang_ja(first_char) then
246 set_np_xspc_jachar_hbox(Nx, first_char)
248 set_np_xspc_alchar(Nx, getchar(first_char),first_char, 1)
251 set_np_xspc_alchar(Nx, -1,first_char)
258 -------------------- Np の計算と情報取得
260 luatexbase.create_callback("luatexja.jfmglue.whatsit_getinfo", "data",
261 function (Np, lp, Nq)
262 if Np.nuc then return Np
264 return Np -- your code
267 luatexbase.create_callback("luatexja.jfmglue.whatsit_after", "data",
268 function (stat, Nq, Np) return false end)
272 do -- 001 -----------------------------------------------
274 local traverse = node.direct.traverse
275 local function check_next_ickern(lp)
277 while lp and getid(lp) == id_kern and ( getsubtype(lp)==0 or
278 getsubtype(lp)==3 or ITALIC == get_attr_icflag(lp)) do
279 set_attr(lp, attr_icflag, IC_PROCESSED);
280 lx, lp = lp, node_next(lp)
282 Np.last = lx; return lp
285 local function calc_np_pbox(lp, last)
286 local first, nc = (not Np.first), nil
287 --local lpa = get_attr_icflag(lp)==PACKED and PACKED or KINSOKU -- KINSOKU: dummy
288 local lpa = get_attr_icflag(lp)
289 Np.first = Np.first or lp; Np.id = id_pbox
290 set_attr(lp, attr_icflag, get_attr_icflag(lp));
291 while lp ~=last and (lpa>=PACKED) and (lpa<BOXBDD) do
292 local lpi = getid(lp)
294 if lpi==id_rule then lp = node_next(lp) end
295 nc, lp = lp, node_next(lp)
296 elseif lpi==id_hlist or lpi==id_vlist then
297 head, lp, nc = ltjd_make_dir_whatsit(head, lp, list_dir, 'jfm pbox')
298 Np.first = first and nc or Np.first
300 nc, lp = lp, node_next(lp)
302 first, lpa = false, (lp and has_attr(lp, attr_icflag) or 0)
303 -- get_attr_icflag() ではいけない!
306 lp = check_next_ickern(lp)
307 Np.last_char = check_box_high(Np, Np.first, lp)
311 local calc_np_aux_glyph_common
312 do -- 002 ---------------------------------------
313 local min, max = math.min, math.max
314 local getwhd = node.direct.getwhd
315 local attr_jchar_class = luatexbase.attributes['ltj@charclass']
316 local attr_jchar_code = luatexbase.attributes['ltj@charcode']
317 local font_getfont = font.getfont
318 local function calc_np_notdef(lp)
319 if not font_getfont(getfont(lp)).characters[getchar(lp)] then
320 local ln = node_next(lp)
321 if ltju.specified_feature(getfont(lp), 'notdef') and ln and getid(ln)==id_glyph then
322 set_attr(lp, attr_icflag, PROCESSED)
323 set_attr(ln, attr_jchar_code, has_attr(lp, attr_jchar_code) or getchar(lp))
324 set_attr(ln, attr_jchar_class, has_attr(lp, attr_jchar_class) or 0)
330 function calc_np_aux_glyph_common(lp, acc_flag)
331 Np.nuc, Np.first = lp, (Np.first or lp)
332 if if_lang_ja(lp) then -- JAchar
334 local m, mc, cls = set_np_xspc_jachar(Np, lp)
336 local w, h, d = getwhd(lp)
337 if w==0 and h==0 and d==0 then lp = calc_np_notdef(lp) end
338 lp, head, npi, npf = capsule_glyph(lp, m, mc[cls], head, tex_dir)
339 Np.first = (Np.first~=Np.nuc) and Np.first or npf or npi
341 return true, check_next_ickern(lp);
344 set_np_xspc_alchar(Np, getchar(lp), lp, 1)
346 local first_glyph, last_glyph = lp
347 set_attr(lp, attr_icflag, PROCESSED); Np.last = lp
348 local y_adjust = has_attr(lp,attr_ablshift) or 0
349 local node_depth = getfield(lp, 'depth') + min(y_adjust, 0)
350 local adj_depth = (y_adjust>0) and (getfield(lp, 'depth') + y_adjust) or 0
351 setfield(lp, 'yoffset', getfield(lp, 'yoffset') - y_adjust)
353 for lx in traverse(lp) do
354 local lai = get_attr_icflag(lx)
355 if lx==last or lai>=PACKED then
358 local lid = getid(lx)
359 if lid==id_glyph and not if_lang_ja(lx) then
361 last_glyph = lx; set_attr(lx, attr_icflag, PROCESSED); Np.last = lx
362 y_adjust = has_attr(lx,attr_ablshift) or 0
363 node_depth = max(getfield(lx, 'depth') + min(y_adjust, 0), node_depth)
364 adj_depth = (y_adjust>0) and max(getfield(lx, 'depth') + y_adjust, adj_depth) or adj_depth
365 setfield(lx, 'yoffset', getfield(lx, 'yoffset') - y_adjust)
366 elseif lid==id_kern then
367 local ls = getsubtype(lx)
368 if ls==2 then -- アクセント用の kern
369 set_attr(lx, attr_icflag, PROCESSED)
370 lx = node_next(lx) -- lx: アクセント本体
371 if getid(lx)==id_glyph then
372 setfield(lx, 'yoffset', getfield(lx, 'yoffset') - (has_attr(lx,attr_ablshift) or 0))
373 else -- アクセントは上下にシフトされている
374 setfield(lx, 'shift', getfield(lx, 'shift') + (has_attr(lx,attr_ablshift) or 0))
376 lx = node_next(node_next(lx))
379 elseif (ls==3) or (lai==ITALIC) then
380 Np.last = lx; set_attr(lx, attr_icflag, IC_PROCESSED)
390 if adj_depth>node_depth then
391 r = node_new(id_rule,3)
392 setfield(r, 'width', 0); setfield(r, 'height', 0)
393 setfield(r, 'depth',adj_depth); setfield(r, 'dir', tex_dir)
394 set_attr(r, attr_icflag, PROCESSED)
397 Np.last_char = last_glyph
398 if r then insert_after(head, first_glyph, r) end
403 local nf, nc = getfont(npn), getchar(npn)
404 local ct = (font.getfont(nf) or font.fonts[nf] ).characters[nc]
405 if not ct then -- variation selector
407 elseif (ct.left_protruding or 0) == 0 then
408 head = insert_before(head, npn, r)
409 Np.first = acc_flag and Np.first or ((Np.first==npn) and r or npn)
410 elseif (ct.right_protruding or 0) == 0 then
411 insert_after(head, npn, r); Np.last, lp = r, r
413 ltjb.package_warning_no_line(
415 'Check depth of glyph node ' .. tostring(npn) .. '(font=' .. nf
416 .. ', char=' .. nc .. '), because its \\lpcode is ' .. tostring(ct.left_protruding)
417 .. ' and its \\rpcode is ' .. tostring(ct.right_protruding)
425 end -- 002 ---------------------------------------
426 local calc_np_auxtable
427 do -- 002 ---------------------------------------
428 local ltjw_apply_ashift_math = ltjw.apply_ashift_math
429 local ltjw_apply_ashift_disc = ltjw.apply_ashift_disc
430 local node_end_of_math = node.direct.end_of_math
431 local dir_tate = luatexja.dir_table.dir_tate
432 local sid_start_link = node.subtype('pdf_start_link')
433 local sid_start_thread = node.subtype('pdf_start_thread')
434 local sid_end_link = node.subtype('pdf_end_link')
435 local sid_end_thread = node.subtype('pdf_end_thread')
437 [id_glyph] = calc_np_aux_glyph_common,
438 [id_hlist] = function(lp)
440 head, lp, op, flag = ltjd_make_dir_whatsit(head, lp, list_dir, 'jfm hlist')
441 set_attr(op, attr_icflag, PROCESSED)
442 Np.first = Np.first or op; Np.last = op; Np.nuc = op;
443 if (flag or getfield(op, 'shift')~=0) then
447 Np.last_char = check_box_high(Np, getlist(op), nil)
451 [id_vlist] = function(lp)
453 head, lp, op = ltjd_make_dir_whatsit(head, lp, list_dir, 'jfm:' .. getid(lp))
454 Np.first = Np.first or op; Np.last = op; Np.nuc = op;
458 box_like = function(lp)
459 Np.first = Np.first or lp; Np.last = lp; Np.nuc = lp;
461 return true, node_next(lp)
463 [id_whatsit] = function(lp)
464 local lps = getsubtype(lp)
465 if lps==sid_user then
466 if getfield(lp, 'user_id')==luatexja.userid_table.IHB then
467 local lq = node_next(lp);
468 head = node_remove(head, lp); node_free(lp); non_ihb_flag = false
470 elseif getfield(lp, 'user_id')==luatexja.userid_table.JA_AL_BDD then
471 local lq = node_next(lp);
472 head = node_remove(head, lp); node_free(lp)
475 set_attr(lp, attr_icflag, PROCESSED)
476 luatexbase.call_callback("luatexja.jfmglue.whatsit_getinfo",
479 Np.id = id_pbox_w; Np.first = Np.nuc; Np.last = Np.nuc;
480 return true, node_next(lp)
482 return false, node_next(lp)
486 -- we do special treatment for these whatsit nodes.
487 if lps == sid_start_link or lps == sid_start_thread then
489 elseif lps == sid_end_link or lps == sid_end_thread then
490 Np.first, Nq.last = nil, lp;
492 set_attr(lp, attr_icflag, PROCESSED)
493 return false, node_next(lp)
496 [id_math] = function(lp)
497 Np.first, Np.nuc = (Np.first or lp), lp;
498 set_attr(lp, attr_icflag, PROCESSED)
499 set_np_xspc_alchar(Np, -1, lp)
500 local end_math = node_end_of_math(lp)
501 ltjw_apply_ashift_math(lp, end_math, attr_ablshift)
502 set_attr(end_math, attr_icflag, PROCESSED)
503 Np.last, Np.id = end_math, id_math;
504 return true, node_next(end_math);
506 [id_glue] = function(lp)
507 Np.first, Np.nuc, Np.last = (Np.first or lp), lp, lp;
508 Np.id = getid(lp); set_attr(lp, attr_icflag, PROCESSED)
509 return true, node_next(lp)
511 [id_disc] = function(lp)
512 Np.first, Np.nuc, Np.last = (Np.first or lp), lp, lp;
513 Np.id = getid(lp); set_attr(lp, attr_icflag, PROCESSED)
514 ltjw_apply_ashift_disc(lp, (list_dir==dir_tate), tex_dir)
515 Np.last_char = check_box_high(Np, getfield(lp, 'replace'), nil)
516 return true, node_next(lp)
518 [id_kern] = function(lp)
519 if getsubtype(lp)==2 then
520 Np.first = Np.first or lp
521 set_attr(lp, attr_icflag, PROCESSED); lp = node_next(lp)
522 if getid(lp)==id_glyph then -- アクセント本体
523 setfield(lp, 'yoffset', getfield(lp, 'yoffset') - (has_attr(lp,attr_ablshift) or 0))
524 else -- アクセントは上下にシフトされている
525 setfield(lp, 'shift', getfield(lp, 'shift') + (has_attr(lp,attr_ablshift) or 0))
527 set_attr(lp, attr_icflag, PROCESSED); lp = node_next(lp)
528 set_attr(lp, attr_icflag, PROCESSED); lp = node_next(lp)
529 set_attr(lp, attr_icflag, PROCESSED);
530 return calc_np_aux_glyph_common(lp, true)
532 Np.first = Np.first or lp
533 Np.id = id_kern; set_attr(lp, attr_icflag, PROCESSED)
534 Np.last = lp; return true, node_next(lp)
537 [id_penalty] = function(lp)
538 Bp[#Bp+1] = lp; set_attr(lp, attr_icflag, PROCESSED)
539 return false, node_next(lp)
542 end -- 002 ---------------------------------------
543 calc_np_auxtable[id_rule] = calc_np_auxtable.box_like
544 calc_np_auxtable[15] = calc_np_auxtable.box_like
546 local function calc_np_aux_skip (lp)
547 set_attr(lp, attr_icflag, PROCESSED)
548 return false, node_next(lp)
551 function calc_np(last, lp)
553 -- We assume lp = node_next(Np.last)
554 Np, Nq, non_ihb_flag = Nq, Np, true
555 -- We clear `predefined' entries of Np before pairs() loop,
556 -- because using only pairs() loop is slower.
557 Np.post, Np.pre, Np.xspc = nil, nil, nil
558 Np.first, Np.id, Np.last, Np.met, Np.class= nil, nil, nil, nil
559 Np.auto_kspc, Np.auto_xspc, Np.char, Np.nuc = nil, nil, nil, nil
560 -- auto_kspc, auto_xspc: normally true/false,
561 -- but the number 0 when Np is ''the beginning of the box/paragraph''.
562 for k in pairs(Np) do Np[k] = nil end
564 for k = 1,#Bp do Bp[k] = nil end
566 local lpa = has_attr(lp, attr_icflag) or 0
569 if lpa%PROCESSED_BEGIN_FLAG == BOXBDD then
570 local lq = node_next(lp)
571 head = node_remove(head, lp); node_free(lp); lp = lq
573 return calc_np_pbox(lp, last)
576 k, lp = (calc_np_auxtable[getid(lp)] or calc_np_aux_skip)(lp)
577 if k then return lp end
582 end -- 001 -----------------------------------------------
584 -- extract informations from Np
585 -- We think that "Np is a Japanese character" if Np.met~=nil,
586 -- "Np is an alphabetic character" if Np.pre~=nil,
587 -- "Np is not a character" otherwise.
588 local after_hlist = nil -- global
589 local after_alchar, extract_np
591 local PRE = luatexja.stack_table_index.PRE
592 local POST = luatexja.stack_table_index.POST
593 local KCAT = luatexja.stack_table_index.KCAT
594 local XSP = luatexja.stack_table_index.XSP
595 local dir_tate = luatexja.dir_table.dir_tate
598 local attr_jchar_class = luatexbase.attributes['ltj@charclass']
599 local attr_jchar_code = luatexbase.attributes['ltj@charcode']
600 local attr_autospc = luatexbase.attributes['ltj@autospc']
601 local attr_autoxspc = luatexbase.attributes['ltj@autoxspc']
602 local getcomponents = node.direct.getcomponents
603 --local ltjf_get_vert_glyph = ltjf.get_vert_glyph
604 function set_np_xspc_jachar(Nx, x)
605 local m = ltjf_font_metric_table[getfont(x)]
606 local c, c_glyph = (not getcomponents(x) and ltjs_orig_char_table[x]), getchar(x)
607 if c and c~=c_glyph then set_attr(x, attr_jchar_code, c) end
609 local cls = slow_find_char_class(c, m, c_glyph)
610 Nx.met, Nx.class, Nx.char = m, cls, c;
611 local mc = m.char_type; Nx.char_type = mc
612 if cls~=0 then set_attr(x, attr_jchar_class, cls) end
613 Nx.pre = table_current_stack[PRE + c] or 0
614 Nx.post = table_current_stack[POST + c] or 0
615 Nx.xspc = table_current_stack[XSP + c] or 3
616 Nx.kcat = table_current_stack[KCAT + c] or 0
617 Nx.auto_kspc, Nx.auto_xspc = (has_attr(x, attr_autospc)==1), (has_attr(x, attr_autoxspc)==1)
620 function set_np_xspc_jachar_hbox(Nx, x)
621 local m = ltjf_font_metric_table[getfont(x)]
622 local c = has_attr(x, attr_jchar_code) or getchar(x)
623 Nx.met, Nx.char = m, c; Nx.class = has_attr(x, attr_jchar_class) or 0;
624 local mc = m.char_type; Nx.char_type = mc
625 Nx.pre = table_current_stack[PRE + c] or 0
626 Nx.post = table_current_stack[POST + c] or 0
627 Nx.xspc = table_current_stack[XSP + c] or 3
628 Nx.kcat = table_current_stack[KCAT + c] or 0
629 Nx.auto_kspc, Nx.auto_xspc = (has_attr(x, attr_autospc)==1), (has_attr(x, attr_autoxspc)==1)
633 local floor = math.floor
634 local nullfunc = function(n) return n end
635 function set_np_xspc_alchar(Nx, c,x, lig)
637 local f = (lig ==1) and nullfunc or node_tail
638 local xc, xs = getcomponents(x), getsubtype(x)
639 while xc and xs and xs%4>=2 do
641 if getid(x)==id_disc then x, xc, xs = nil, getfield(x,'replace'), 2
642 else xc, xs = getcomponents(x), getsubtype(x) end
644 c = x and getchar(x) or c
645 Nx.pre = table_current_stack[PRE + c] or 0
646 Nx.post = table_current_stack[POST + c] or 0
648 Nx.pre, Nx.post = 0, 0
651 Nx.xspc = table_current_stack[XSP + c] or 3
652 Nx.auto_xspc = (has_attr(x, attr_autoxspc)==1)
654 local set_np_xspc_alchar = set_np_xspc_alchar
656 -- change the information for the next loop
657 -- (will be done if Nx is an alphabetic character or a hlist)
658 after_hlist = function (Nx)
659 local s = Nx.last_char
661 if getid(s)==id_glyph then
662 if if_lang_ja(s) then
663 set_np_xspc_jachar_hbox(Nx, s)
665 set_np_xspc_alchar(Nx, getchar(s), s, 2)
668 set_np_xspc_alchar(Nx, -1, s)
671 Nx.pre, Nx.met = nil, nil
675 after_alchar = function (Nx)
676 local x = Nx.last_char
677 return set_np_xspc_alchar(Nx, getchar(x), x, 2)
682 -------------------- 最下層の処理
684 luatexbase.create_callback('luatexja.adjust_jfmglue', 'simple', function(n) return n end)
686 -- change penalties (or create a new penalty, if needed)
687 local function handle_penalty_normal(post, pre, g)
688 luatexbase.call_callback('luatexja.adjust_jfmglue', head, Nq, Np, Bp)
689 local a = (pre or 0) + (post or 0)
691 if (a~=0 and not(g and getid(g)==id_kern)) then
692 local p = node_new(id_penalty)
693 if a<-10000 then a = -10000 elseif a>10000 then a = 10000 end
694 setfield(p, 'penalty', a)
695 head = insert_before(head, Np.first, p)
697 set_attr(p, attr_icflag, KINSOKU)
699 else for _, v in pairs(Bp) do add_penalty(v,a) end
703 local function handle_penalty_always(post, pre, g)
704 luatexbase.call_callback('luatexja.adjust_jfmglue', head, Nq, Np, Bp)
705 local a = (pre or 0) + (post or 0)
707 if not (g and getid(g)==id_glue) or a~=0 then
708 local p = node_new(id_penalty)
709 if a<-10000 then a = -10000 elseif a>10000 then a = 10000 end
710 setfield(p, 'penalty', a)
711 head = insert_before(head, Np.first, p)
713 set_attr(p, attr_icflag, KINSOKU)
715 else for _, v in pairs(Bp) do add_penalty(v,a) end
719 local function handle_penalty_suppress(post, pre, g)
720 luatexbase.call_callback('luatexja.adjust_jfmglue', head, Nq, Np, Bp)
722 if g and getid(g)==id_glue then
723 local p = node_new(id_penalty)
724 setfield(p, 'penalty', 10000); head = insert_before(head, Np.first, p)
726 set_attr(p, attr_icflag, KINSOKU)
729 local a = (pre or 0) + (post or 0)
730 for _, v in pairs(Bp) do add_penalty(v,a) end
734 local function handle_penalty_jwp()
735 local a = table_current_stack[luatexja.stack_table_index.JWP]
736 if #widow_Bp == 0 then
738 local p = node_new(id_penalty)
739 if a<-10000 then a = -10000 elseif a>10000 then a = 10000 end
740 setfield(p, 'penalty', a)
741 head = insert_before(head, widow_Np.first, p)
743 set_attr(p, attr_icflag, KINSOKU)
745 else for _, v in pairs(widow_Bp) do add_penalty(v,a) end
749 -- 和文文字間の JFM glue を node 化
750 local function new_jfm_glue(mc, bc, ac)
751 -- bc, ac: char classes
755 return node_copy(g[1]), g.ratio, false, false, false
757 local f = node_new(id_glue)
758 set_attr(f, attr_icflag, g.priority)
759 setglue(f, g.width, g.stretch, g.shrink)
760 return f, g.ratio, g.kanjiskip_natural, g.kanjiskip_stretch, g.kanjiskip_shrink
766 -- Nq.last (kern w) .... (glue/kern g) Np.first
767 local function real_insert(g)
769 head = insert_before(head, Np.first, g)
775 -------------------- 和文文字間空白量の決定
778 local round = tex.round
779 local bg_ag = 2*id_glue - id_glue
780 local bg_ak = 2*id_glue - id_kern
781 local bk_ag = 2*id_kern - id_glue
782 local bk_ak = 2*id_kern - id_kern
784 local function blend_diffmet(b, a, rb, ra)
785 return round(luatexja.jfmglue.diffmet_rule((1-rb)*b+rb*a, (1-ra)*b+ra*a))
787 local blend_diffmet_inf
789 local abs, log, log264, floor = math.abs, math.log, math.log(2)*64, math.floor
790 blend_diffmet_inf = function (b, a, bo, ao, rb, ra)
791 local nb, na = (bo and b*2.0^(64*bo) or 0), (ao and a*2.0^(64*ao) or 0)
792 local r = luatexja.jfmglue.diffmet_rule((1-rb)*b+rb*a, (1-ra)*b+ra*a)
793 local ro = (r~=0) and floor(log(abs(r))/log264+0.0625) or 0
794 return round(r/2.^(64*ro)), ro
797 local getglue = luatexja.getglue
798 calc_ja_ja_aux = function (gb, ga, db, da)
799 if luatexja.jfmglue.diffmet_rule ~= math.two_pleft and diffmet_rule ~= math.two_pright
800 and luatexja.jfmglue.diffmet_rule ~= math.two_paverage then
804 if ga then gb = node_new(id_kern, 1); setfield(gb, 'kern', 0)
807 ga = node_new(id_kern, 1); setfield(ga, 'kern', 0)
809 local gbw, gaw, gbst, gast, gbsto, gasto, gbsh, gash, gbsho, gasho
810 if getid(gb)==id_glue then
811 gbw, gbst, gbsh, gbsto, gbsho = getglue(gb)
813 gbw = getfield(gb, 'kern')
815 if getid(ga)==id_glue then
816 gaw, gast, gash, gasto, gasho = getglue(ga)
818 gaw = getfield(ga, 'kern')
820 if not (gbst or gast) then -- 両方とも kern
821 setfield(gb, 'kern', blend_diffmet(gbw, gaw, db, da))
822 node_free(ga); return gb
825 if not gbst then gr = ga; node_free(gb) else node_free(ga) end
826 gbw = blend_diffmet(gbw or 0, gaw or 0, db, da) -- 結果の自然長
827 gbst, gbsto = blend_diffmet_inf(gbst, gast, gbsto, gasto, db, da) -- 伸び
828 gbsh, gbsho = blend_diffmet_inf(-(gbsh or 0), -(gash or 0), gbsto, gasto, db, da) -- -(縮み)
829 setglue(gr, gbw, gbst, -gbsh, gbsto, gbsho)
835 local null_skip_table = {0, 0, 0}
837 local get_kanjiskip, kanjiskip_jfm_flag
838 local get_kanjiskip_low
839 local calc_ja_ja_glue
841 local KANJI_SKIP = luatexja.icflag_table.KANJI_SKIP
842 local KANJI_SKIP_JFM = luatexja.icflag_table.KANJI_SKIP_JFM
844 get_kanjiskip_low = function(flag, qm, bn, bp, bh)
845 -- flag = false: kanjiskip そのもの(パラメータ or JFM)
846 -- ノード kanji_skip のコピーで良い場合は nil が帰る
847 -- flag = true: JFM グルーに付随する kanjiskip 自然長/伸び/縮み分
848 if qm.with_kanjiskip and (bn or bp or bh) then
849 if kanjiskip_jfm_flag then
850 local g = node_new(id_glue);
851 local bk = qm.kanjiskip or null_skip_table
852 setglue(g, bn and (bn*bk[1]) or 0,
853 bp and (bp*bk[2]) or 0,
854 bh and (bh*bk[3]) or 0, 0, 0)
855 set_attr(g, attr_icflag, KANJI_SKIP_JFM)
858 local g = node_new(id_glue);
860 bn and (bn*getfield(kanji_skip, 'width')) or 0,
861 bp and (bp*getfield(kanji_skip, 'stretch')) or 0,
862 bh and (bh*getfield(kanji_skip, 'shrink')) or 0,
863 bp and bp~=0 and getfield(kanji_skip, 'stretch_order') or 0,
864 bh and bh~=0 and getfield(kanji_skip, 'shrink_order') or 0)
865 set_attr(g, attr_icflag, KANJI_SKIP_JFM)
871 get_kanjiskip = function()
872 if Np.auto_kspc==0 or Nq.auto_kspc==0 then
874 elseif Np.auto_kspc or Nq.auto_kspc then
875 local pm, qm = Np.met, Nq.met
876 if (pm.char_type==qm.char_type) and (qm.var==pm.var) then
877 return get_kanjiskip_low(false, qm, 1, 1, 1) or node_copy(kanji_skip)
879 local gb = get_kanjiskip_low(false, qm, 1, 1, 1)
881 return calc_ja_ja_aux(gb,
882 get_kanjiskip_low(false, pm, 1, 1, 1) or node_copy(kanji_skip), 0, 1)
884 local ga = get_kanjiskip_low(false, pm, 1, 1, 1)
885 return (ga and calc_ja_ja_aux(node_copy(kanji_skip), ga, 0, 1))
886 or node_copy(kanji_skip)
890 local g = node_new(id_glue)
891 set_attr(g, attr_icflag, kanjiskip_jfm_flag and KANJI_SKIP_JFM or KANJI_SKIP)
896 calc_ja_ja_glue = function ()
897 local qm, pm = Nq.met, Np.met
898 local qmc, pmc = qm.char_type, pm.char_type
899 if (qmc==pmc) and (qm.var==pm.var) then
900 local g, _, kn, kp, kh = new_jfm_glue(qmc, Nq.class, Np.class)
901 return g, (Np.auto_kspc or Nq.auto_kspc) and get_kanjiskip_low(true, qm, kn, kp, kh)
903 local npn, nqn = Np.nuc, Nq.nuc
904 local gb, db, bn, bp, bh
905 = new_jfm_glue(qmc, Nq.class,
906 slow_find_char_class(Np.char,
908 local ga, da, an, ap, ah
910 slow_find_char_class(Nq.char,
913 local g = calc_ja_ja_aux(gb, ga, db, da)
915 --if (pmc==qmc) and (qm.var==pm.var) then
916 gb = get_kanjiskip_low(true, qm, bn, bp, bh)
917 ga = get_kanjiskip_low(true, pm, an, ap, ah)
918 k = calc_ja_ja_aux(gb, ga, db, da)
925 -------------------- 和欧文間空白量の決定
928 local get_xkanjiskip, xkanjiskip_jfm_flag
929 local get_xkanjiskip_normal, get_xkanjiskip_jfm
930 local get_xkanjiskip_low
932 local XKANJI_SKIP = luatexja.icflag_table.XKANJI_SKIP
933 local XKANJI_SKIP_JFM = luatexja.icflag_table.XKANJI_SKIP_JFM
935 get_xkanjiskip_low = function(flag, qm, bn, bp, bh)
936 if flag or (qm.with_kanjiskip and (bn or bp or bh)) then
937 if xkanjiskip_jfm_flag then
938 local g = node_new(id_glue);
939 local bk = qm.xkanjiskip or null_skip_table
940 setglue(g, bn and bk[1] or 0,
942 bh and bk[3] or 0, 0, 0)
943 set_attr(g, attr_icflag, XKANJI_SKIP_JFM)
946 return node_copy(xkanji_skip)
948 local g = node_new(id_glue);
950 bn and (bn*getfield(xkanji_skip, 'width')) or 0,
951 bp and (bp*getfield(xkanji_skip, 'stretch')) or 0,
952 bh and (bh*getfield(xkanji_skip, 'shrink')) or 0,
953 bp and getfield(xkanji_skip, 'stretch_order') or 0,
954 bh and getfield(xkanji_skip, 'shrink_order') or 0)
955 set_attr(g, attr_icflag, XKANJI_SKIP_JFM)
961 get_xkanjiskip = function(Nn)
962 if Np.auto_xspc==0 or Nq.auto_xspc==0 then
964 elseif (Nq.xspc>=2) and (Np.xspc%2==1) and (Nq.auto_xspc or Np.auto_xspc) then
965 return get_xkanjiskip_low(true, Nn.met, 1, 1, 1)
967 local g = node_new(id_glue)
968 set_attr(g, attr_icflag, xkanjiskip_jfm_flag and XKANJI_SKIP_JFM or XKANJI_SKIP)
974 -------------------- 隣接した「塊」間の処理
976 local function combine_spc(name)
977 return (Np[name] or Nq[name]) and ((Np[name]~=0) and (Nq[name]~=0))
980 -- NA, NB: alchar or math
981 local function get_NA_skip()
983 local g, _, kn, kp, kh = new_jfm_glue(
985 fast_find_char_class(
986 (Nq.id == id_math and -1 or (Nq.xspc>=2 and 'alchar' or 'nox_alchar')), pm),
988 local k = ((Nq.xspc>=2) and (Np.xspc%2==1) and combine_spc('auto_xspc'))
989 and get_xkanjiskip_low(false, pm, kn, kp, kh)
992 local function get_NB_skip()
994 local g, _, kn, kp, kh = new_jfm_glue(
995 qm.char_type, Nq.class,
996 fast_find_char_class(
997 (Np.id == id_math and -1 or (Np.xspc%2==1 and 'alchar' or 'nox_alchar')), qm)
999 local k = ((Nq.xspc>=2) and (Np.xspc%2==1) and combine_spc('auto_xspc'))
1000 and get_xkanjiskip_low(false, qm, kn, kp, kh)
1004 local function get_OA_skip(is_kanji)
1006 local g, _, kn, kp, kh = new_jfm_glue(
1008 fast_find_char_class(
1009 (((Nq.id==id_glue)or(Nq.id==id_kern)) and 'glue' or 'jcharbdd'), pm),
1013 k = combine_spc('auto_kspc') and get_kanjiskip_low(true, pm, kn, kp, kh)
1017 local function get_OB_skip(is_kanji)
1019 local g, _, kn, kp, kh = new_jfm_glue(
1020 qm.char_type, Nq.class,
1021 fast_find_char_class(
1022 (((Np.id==id_glue)or(Np.id==id_kern)) and 'glue' or 'jcharbdd'), qm))
1025 k = combine_spc('auto_kspc') and get_kanjiskip_low(true, qm, kn, kp, kh)
1030 -- (anything) .. jachar
1031 local function handle_np_jachar(mode)
1033 if qid==id_jglyph or ((qid==id_pbox or qid==id_pbox_w) and Nq.met) then
1035 if non_ihb_flag then g, k = calc_ja_ja_glue() end -- M->K
1036 if not g then g = get_kanjiskip() end
1037 handle_penalty_normal(Nq.post, Np.pre, g);
1038 real_insert(g); real_insert(k)
1039 elseif Nq.met then -- qid==id_hlist
1041 if non_ihb_flag then g, k = get_OA_skip(0) end -- O_A->K
1042 if not g then g = get_kanjiskip() end
1043 handle_penalty_normal(0, Np.pre, g); real_insert(g); real_insert(k)
1046 if non_ihb_flag then g, k = get_NA_skip() end -- N_A->X
1047 if not g then g = get_xkanjiskip(Np) end
1048 handle_penalty_normal((qid==id_hlist and 0 or Nq.post), Np.pre, g);
1049 real_insert(g); real_insert(k)
1051 local g = non_ihb_flag and (get_OA_skip()) -- O_A
1052 if qid==id_glue then handle_penalty_normal(0, Np.pre, g)
1053 elseif qid==id_kern then handle_penalty_suppress(0, Np.pre, g)
1054 else handle_penalty_always(0, Np.pre, g)
1058 if mode and Np.kcat%2~=1 then
1059 widow_Np.first, widow_Bp, Bp = Np.first, Bp, widow_Bp
1064 -- jachar .. (anything)
1065 local function handle_nq_jachar()
1067 local g = non_ihb_flag and get_NB_skip() or get_xkanjiskip(Nq) -- N_B->X
1068 handle_penalty_normal(Nq.post, (Np.id==id_hlist and 0 or Np.pre), g); real_insert(g)
1070 local g =non_ihb_flag and (get_OB_skip()) -- O_B
1071 if Np.id==id_glue then handle_penalty_normal(Nq.post, 0, g)
1072 elseif Np.id==id_kern then handle_penalty_suppress(Nq.post, 0, g)
1073 else handle_penalty_always(Nq.post, 0, g)
1079 -- (anything) .. (和文文字で始まる hlist)
1080 local function handle_np_ja_hlist()
1082 if qid==id_jglyph or ((qid==id_pbox or qid == id_pbox_w) and Nq.met) then
1083 local g = non_ihb_flag and get_OB_skip(0) or get_kanjiskip() -- O_B->K
1084 handle_penalty_normal(Nq.post, 0, g); real_insert(g)
1085 elseif Nq.met then -- Nq.id==id_hlist
1086 local g = get_kanjiskip() -- K
1087 handle_penalty_suppress(0, 0, g); real_insert(g)
1089 local g = get_xkanjiskip(Np) -- X
1090 handle_penalty_suppress(0, 0, g); real_insert(g)
1094 -- (和文文字で終わる hlist) .. (anything)
1095 local function handle_nq_ja_hlist()
1097 local g = get_xkanjiskip(Nq) -- X
1098 handle_penalty_suppress(0, 0, g); real_insert(g)
1103 -- Nq が前側のクラスタとなることによる修正
1106 local adjust_nq_aux = {
1107 [id_glyph] = function() after_alchar(Nq) end, -- after_alchar(Nq)
1108 [id_hlist] = function() after_hlist(Nq) end,
1109 [id_pbox] = function() after_hlist(Nq) end,
1110 [id_disc] = function() after_hlist(Nq) end,
1111 [id_pbox_w] = function()
1112 luatexbase.call_callback("luatexja.jfmglue.whatsit_after",
1117 adjust_nq=function()
1118 local x = adjust_nq_aux[Nq.id]
1124 -------------------- 開始・終了時の処理
1126 local node_prev = node.direct.getprev
1128 local function handle_list_tail(mode, last)
1131 -- the current list is to be line-breaked.
1132 -- Insert \jcharwidowpenalty
1133 if widow_Np.first then handle_penalty_jwp() end
1136 -- the current list is the contents of a hbox
1137 local npi, pm = Np.id, Np.met
1138 if npi == id_jglyph or (npi==id_pbox and pm) then
1139 local g = new_jfm_glue(pm.char_type, Np.class, fast_find_char_class('boxbdd', pm))
1141 set_attr(g, attr_icflag, BOXBDD)
1142 head = insert_after(head, Np.last, g)
1149 local function handle_list_head(par_indented)
1150 local npi, pm = Np.id, Np.met
1151 if npi == id_jglyph or (npi==id_pbox and pm) then
1152 if non_ihb_flag then
1153 local g = new_jfm_glue(pm.char_type, fast_find_char_class(par_indented, pm), Np.class)
1155 set_attr(g, attr_icflag, BOXBDD)
1156 if getid(g)==id_glue and #Bp==0 then
1157 local h = node_new(id_penalty)
1158 setfield(h, 'penalty', 10000); set_attr(h, attr_icflag, BOXBDD)
1160 head = insert_before(head, Np.first, g)
1167 -- return value: (the initial cursor lp), (last node)
1170 local id_local = node.id('local_par')
1171 local KANJI_SKIP = luatexja.icflag_table.KANJI_SKIP
1172 local XKANJI_SKIP = luatexja.icflag_table.XKANJI_SKIP
1173 local KSK = luatexja.stack_table_index.KSK
1174 local XSK = luatexja.stack_table_index.XSK
1175 local dir_yoko = luatexja.dir_table.dir_yoko
1176 local dir_tate = luatexja.dir_table.dir_tate
1177 local attr_yablshift = luatexbase.attributes['ltj@yablshift']
1178 local attr_tablshift = luatexbase.attributes['ltj@tablshift']
1179 local table_pool = {
1180 {}, {}, {first=nil},
1181 { auto_kspc=nil, auto_xspc=nil, char=nil, class=nil,
1182 first=nil, id=nil, last=nil, met=nil, nuc=nil,
1183 post=nil, pre=nil, xspc=nil, },
1184 { auto_kspc=nil, auto_xspc=nil, char=nil, class=nil,
1185 first=nil, id=nil, last=nil, met=nil, nuc=nil,
1186 post=nil, pre=nil, xspc=nil, },
1188 init_var = function (mode,dir)
1189 -- 1073741823: max_dimen
1190 Bp, widow_Bp, widow_Np, Np, Nq
1191 = table_pool[1], table_pool[2], table_pool[3], table_pool[4], table_pool[5]
1192 for i=1,5 do for j,_ in pairs(table_pool[i]) do table_pool[i][j]=nil end end
1193 table_current_stack = ltjs.table_current_stack
1195 list_dir, tex_dir = (ltjs.list_dir or dir_yoko), (dir or 'TLT')
1196 local is_dir_tate = list_dir==dir_tate
1197 capsule_glyph = is_dir_tate and ltjw.capsule_glyph_tate or ltjw.capsule_glyph_yoko
1198 attr_ablshift = is_dir_tate and attr_tablshift or attr_yablshift
1199 local TEMP = node_new(id_glue)
1200 -- TEMP is a dummy node, which will be freed at the end of the callback.
1201 -- ithout this node, set_attr(kanji_skip, ...) somehow creates an "orphaned" attribute list.
1204 kanji_skip, kanjiskip_jfm_flag = skip_table_to_glue(KSK)
1205 set_attr(kanji_skip, attr_icflag, KANJI_SKIP)
1209 xkanji_skip, xkanjiskip_jfm_flag = skip_table_to_glue(XSK)
1210 set_attr(xkanji_skip, attr_icflag, XKANJI_SKIP)
1214 -- the current list is to be line-breaked:
1215 -- hbox from \parindent is skipped.
1216 local lp, par_indented, lpi, lps = head, 'boxbdd', getid(head), getsubtype(head)
1218 ((lpi==id_whatsit and lps~=sid_user)
1219 or ((lpi==id_hlist) and (lps==3))
1220 or (lpi==id_local)) do
1221 if (lpi==id_hlist) and (lps==3) then
1222 Np.char, par_indented = 'parbdd', 'parbdd'
1223 Np.width = getfield(lp, 'width')
1225 lp=node_next(lp); lpi, lps = getid(lp), getsubtype(lp) end
1226 return lp, node_tail(head), par_indented, TEMP
1228 return head, nil, 'boxbdd', TEMP
1233 local ensure_tex_attr = ltjb.ensure_tex_attr
1234 local function cleanup(mode, TEMP)
1235 -- luatexja.ext_show_node_list(to_node(head), '> ', print)
1236 -- adjust attr_icflag for avoiding error
1237 if tex.getattribute(attr_icflag)~=0 then ensure_tex_attr(attr_icflag, 0) end
1238 node_free(kanji_skip);
1239 node_free(xkanji_skip); node_free(TEMP)
1242 local h = node_next(head)
1243 if getid(h) == id_penalty and getfield(h, 'penalty') == 10000 then
1245 if getid(h) == id_glue and getsubtype(h) == 15 and not node_next(h) then
1252 -------------------- 外部から呼ばれる関数
1255 function luatexja.jfmglue.main(ahead, mode, dir)
1256 if not ahead then return ahead end
1257 --luatexja.ext_show_node_list(to_node(ahead ), '>B ', print)
1260 local lp, last, par_indented, TEMP = init_var(mode,dir)
1261 lp = calc_np(last, lp)
1263 handle_list_head(par_indented)
1264 lp = calc_np(last,lp);
1267 local pid, pm = Np.id, Np.met
1269 if pid == id_jglyph then
1270 handle_np_jachar(mode)
1272 if pid==id_hlist then handle_np_ja_hlist()
1273 else handle_np_jachar() end
1275 if Nq.id==id_hlist then handle_nq_ja_hlist()
1276 else handle_nq_jachar() end
1278 lp = calc_np(last,lp)
1280 handle_list_tail(mode, last)
1282 --luatexja.ext_show_node_list(to_node(ahead ), '>A ', print)
1284 return cleanup(mode, TEMP)
1289 local IHB = luatexja.userid_table.IHB
1290 local BPAR = luatexja.userid_table.BPAR
1291 local BOXB = luatexja.userid_table.BOXB
1292 local node_prev = node.direct.getprev
1293 local node_write = node.direct.write
1296 function luatexja.jfmglue.create_inhibitglue_node()
1297 local tn = node_new(id_whatsit, sid_user)
1298 setfield(tn, 'user_id', IHB)
1299 setfield(tn, 'type', 100)
1300 setfield(tn, 'value', 1)
1304 -- Node for indicating beginning of a paragraph
1305 -- (for ltjsclasses)
1306 function luatexja.jfmglue.create_beginpar_node()
1307 local tn = node_new(id_whatsit, sid_user)
1308 setfield(tn, 'user_id', BPAR)
1309 setfield(tn, 'type', 100)
1310 setfield(tn, 'value', 1)
1314 -- Node for indicating a head/end of a box
1315 function luatexja.jfmglue.create_boxbdd_node()
1316 local tn = node_new(id_whatsit, sid_user)
1317 setfield(tn, 'user_id', BOXB)
1318 setfield(tn, 'type', 100)
1319 setfield(tn, 'value', 1)
1323 local function whatsit_callback(Np, lp, Nq)
1324 if Np and Np.nuc then return Np
1325 elseif Np and getfield(lp, 'user_id') == BPAR then
1326 Np.first = lp; Np.nuc = lp; Np.last = lp
1328 elseif Np and getfield(lp, 'user_id') == BOXB then
1329 Np.first = lp; Np.nuc = lp; Np.last = lp
1332 Np.class = fast_find_char_class('boxbdd', Nq.met)
1334 Np.met = Nq.met; Np.pre = 0; Np.post = 0; Np.xspc = 0
1335 Np.auto_xspc, Np.auto_kspc = 0, 0
1343 local function whatsit_after_callback(s, Nq, Np)
1344 if not s and getfield(Nq.nuc, 'user_id') == BPAR then
1345 local x, y = node_prev(Nq.nuc), Nq.nuc
1346 Nq.first, Nq.nuc, Nq.last = x, x, x
1349 Nq.class = fast_find_char_class('parbdd', Np.met)
1351 Nq.met = Np.met; Nq.pre = 0; Nq.post = 0; Nq.xspc = 0
1352 Nq.auto_xspc, Nq.auto_kspc = 0, 0
1354 head = node_remove(head, y)
1356 elseif not s and getfield(Nq.nuc, 'user_id') == BOXB then
1357 local x, y = node_prev(Nq.nuc), Nq.nuc
1358 Nq.first, Nq.nuc, Nq.last = x, x, x
1361 Nq.class = fast_find_char_class('boxbdd', Np.met)
1363 Nq.met = Np.met; Nq.pre = 0; Nq.post = 0; Nq.xspc = 0
1364 Nq.auto_xspc, Nq.auto_kspc = 0, 0
1366 head = node_remove(head, y)
1372 luatexbase.add_to_callback("luatexja.jfmglue.whatsit_getinfo", whatsit_callback,
1373 "luatexja.beginpar.np_info", 1)
1374 luatexbase.add_to_callback("luatexja.jfmglue.whatsit_after", whatsit_after_callback,
1375 "luatexja.beginpar.np_info_after", 1)
1379 luatexja.jfmglue.after_hlist = after_hlist
1380 luatexja.jfmglue.check_box_high = check_box_high