4 luatexbase.provides_module({
5 name = 'luatexja.ruby',
7 description = 'Ruby annotation',
10 luatexja.load_module('stack'); local ltjs = luatexja.stack
11 luatexja.load_module('base'); local ltjb = luatexja.base
13 local to_node = node.direct.tonode
14 local to_direct = node.direct.todirect
16 local setfield = node.direct.setfield
17 local setglue = luatexja.setglue
18 local getfield = node.direct.getfield
19 local getid = node.direct.getid
20 local getfont = node.direct.getfont
21 local getlist = node.direct.getlist
22 local getchar = node.direct.getchar
23 local getsubtype = node.direct.getsubtype
25 local node_new = node.direct.new
26 local node_remove = node.direct.remove
27 local node_next = node.direct.getnext
28 local node_copy, node_free, node_tail = node.direct.copy, node.direct.free, node.direct.tail
29 local has_attr, set_attr = node.direct.has_attribute, node.direct.set_attribute
30 local insert_before, insert_after = node.direct.insert_before, node.direct.insert_after
32 local id_hlist = node.id('hlist')
33 local id_vlist = node.id('vlist')
34 local id_rule = node.id('rule')
35 local id_whatsit = node.id('whatsit')
36 local id_glue = node.id('glue')
37 local id_kern = node.id('kern')
38 local id_penalty = node.id('penalty')
39 local sid_user = node.subtype('user_defined')
40 local ltjs_get_stack_table = luatexja.stack.get_stack_table
41 local id_pbox_w = 258 -- cluster which consists of a whatsit
43 local attr_icflag = luatexbase.attributes['ltj@icflag']
44 -- ルビ処理用の attribute は他のやつの流用なので注意!
46 local attr_ruby_maxprep = luatexbase.attributes['ltj@charclass']
47 local attr_ruby_maxpostp = luatexbase.attributes['ltj@kcat0']
48 local attr_ruby_maxmargin = luatexbase.attributes['ltj@kcat1']
49 local attr_ruby_stretch = luatexbase.attributes['ltj@kcat2']
50 local attr_ruby_mode = luatexbase.attributes['ltj@kcat3']
51 local attr_ruby_id = luatexbase.attributes['ltj@kcat4'] -- uniq id
52 local attr_ruby_intergap = luatexbase.attributes['ltj@kcat5']
53 local attr_ruby = luatexbase.attributes['ltj@rubyattr']
54 -- ルビ内部処理用,以下のようにノードによって使われ方が異なる
55 -- * (whatsit) では JAglue 処理時に,
56 -- 「2つ前のクラスタもルビ」 ==> そのルビクラスタの id
57 -- otherwise ==> unset
58 -- * (whatsit).value node ではルビ全角の値(sp単位)
59 -- * 行分割で whatsit の前後に並ぶノードでは,「何番目のルビ関連ノード」か
60 -- * (whatsit).value に続く整形済み vbox たちでは post_intrusion の値
61 local cat_lp = luatexbase.catcodetables['latex-package']
63 local round, floor = tex.round, math.floor
64 local min, max = math.min, math.max
66 luatexja.userid_table.RUBY_PRE = luatexbase.newuserwhatsitid('ruby_pre', 'luatexja')
67 luatexja.userid_table.RUBY_POST = luatexbase.newuserwhatsitid('ruby_post', 'luatexja')
68 local RUBY_PRE = luatexja.userid_table.RUBY_PRE
69 local RUBY_POST = luatexja.userid_table.RUBY_POST
71 ----------------------------------------------------------------
73 ----------------------------------------------------------------
75 local getbox = node.direct.getbox
76 function luatexja.ruby.cpbox() return node_copy(getbox(0)) end
79 ----------------------------------------------------------------
81 ----------------------------------------------------------------
83 local function gauss(coef)
84 -- #coef 式,#coef 変数の連立1次方程式系を掃きだし法で解く.
90 coef[i], coef[j] = coef[j], coef[i]; break
98 for k = 1, deg+1 do coef[j][k] = coef[j][k] - e*coef[i][k]/d end
100 for k = 1, deg+1 do coef[i][k] = coef[i][k]/d end
106 local function solve_1(coef)
107 local a, b, c = coef[1][4], coef[2][4], coef[3][4]
108 coef[1][4], coef[2][4], coef[3][4] = c-b, a+b-c, c-a
112 local function solve_2(coef)
113 local a, b, c, d, e = coef[1][6], coef[2][6], coef[3][6], coef[4][6], coef[5][6]
114 coef[1][6], coef[2][6], coef[3][6], coef[4][6], coef[5][6]
115 = e-c, a+c-e, e-a-d, b+d-e, e-b
120 -- 実行回数 + ルビ中身 から uniq_id を作る関数
121 luatexja.ruby.old_break_info = {} -- public, 前 run 時の分割情報
122 local old_break_info = luatexja.ruby.old_break_info
124 function luatexja.ruby.read_old_break_info()
126 local fname = tex.jobname .. '.ltjruby'
127 local real_file = kpse.find_file(fname)
128 if real_file then dofile(real_file) end
129 cache_handle = io.open(fname, 'w')
135 make_uniq_id = function (w)
136 exec_count = exec_count + 1
141 -- concatenation of boxes: reusing nodes
142 -- ルビ組版が行われている段落/hboxでの設定が使われる.
143 -- ルビ文字を格納しているボックスでの設定ではない!
146 local node_prev = node.direct.getprev
147 function concat(f, b)
150 local h, nh = getlist(f), getlist(b)
151 if getid(nh)==id_whatsit and getsubtype(nh)==sid_user then
152 nh=node_next(nh); node_free(node_prev(nh))
154 setfield(node_tail(h), 'next', nh)
155 setfield(f, 'head', nil); node_free(f)
156 setfield(b, 'head', nil); node_free(b)
157 local g = luatexja.jfmglue.main(h,false)
158 return node.direct.hpack(g)
165 local h = node_new(id_hlist)
166 setfield(h, 'subtype', 0)
167 setfield(h, 'width', 0)
168 setfield(h, 'height', 0)
169 setfield(h, 'depth', 0)
170 setfield(h, 'glue_set', 0)
171 setfield(h, 'glue_order', 0)
172 setfield(h, 'head', nil)
178 local function expand_3bits(num)
179 local t = {}; local a = num
181 t[i] = a%8; a = floor(a/8)
185 ----------------------------------------------------------------
187 ----------------------------------------------------------------
189 -- box の中身のノードは再利用される
192 local FROM_JFM = luatexja.icflag_table.FROM_JFM
193 local PROCESSED = luatexja.icflag_table.PROCESSED
194 local KANJI_SKIP = luatexja.icflag_table.KANJI_SKIP
195 local KANJI_SKIP_JFM = luatexja.icflag_table.KANJI_SKIP_JFM
196 local XKANJI_SKIP = luatexja.icflag_table.XKANJI_SKIP
197 local XKANJI_SKIP_JFM= luatexja.icflag_table.XKANJI_SKIP_JFM
198 enlarge = function (box, new_width, pre, middle, post, prenw, postnw)
199 -- pre, middle, post: 伸縮比率
200 -- prenw, postnw: 前後の自然長 (sp)
201 local h = getlist(box);
202 local hh, hd = getfield(box, 'height'), getfield(box, 'depth')
205 local hic = has_attr(hx, attr_icflag)
206 if (hic == KANJI_SKIP) or (hic == KANJI_SKIP_JFM)
207 or (hic == XKANJI_SKIP) or (hic == XKANJI_SKIP_JFM)
208 or ((hic<=FROM_JFM+63) and (hic>=FROM_JFM)) then
210 if getid(hx) == id_kern then
211 local k = node_new(id_glue)
212 setglue(k, getfield(hx, 'kern'), round(middle*65536), 0,
214 setfield(k, 'subtype', 0);
215 h = insert_after(h, hx, k);
216 h = node_remove(h, hx); node_free(hx); hx = k
218 setglue(hx, getfield(hx, 'width'), round(middle*65536), 0,
225 local k = node_new(id_glue);
226 setglue(k, prenw, round(pre*65536), 0, 2, 0)
227 h = insert_before(h, h, k);
229 local k = node_new(id_glue);
230 setglue(k, postnw, round(post*65536), 0, 2, 0)
231 insert_after(h, node_tail(h), k);
233 setfield(box, 'head', nil); node_free(box)
234 box = node.direct.hpack(h, new_width, 'exactly')
235 setfield(box, 'height', hh)
236 setfield(box, 'depth', hd)
242 ----------------------------------------------------------------
244 ----------------------------------------------------------------
246 -- rtlr: ルビ部分のボックスたち r1, r2, ...
247 -- rtlp: 親文字 のボックスたち p1, p2, ...
248 local function texiface_low(rst, rtlr, rtlp)
249 local w = node_new(id_whatsit, sid_user)
250 setfield(w, 'type', 110); setfield(w, 'user_id', RUBY_PRE)
251 local wv = node_new(id_whatsit, sid_user)
252 setfield(w, 'value', to_node(wv))
253 setfield(wv, 'type', 100)
254 setfield(wv, 'value', floor(#rtlr))
255 setfield(wv, 'user_id', RUBY_PRE) -- dummy
256 set_attr(wv, attr_ruby, rst.rubyzw)
257 set_attr(wv, attr_ruby_maxmargin, rst.maxmargin)
258 set_attr(wv, attr_ruby_maxprep, rst.pre)
259 set_attr(wv, attr_ruby_maxpostp, rst.post)
260 set_attr(wv, attr_ruby_intergap, rst.intergap)
261 set_attr(wv, attr_ruby_stretch, rst.stretch)
262 set_attr(wv, attr_ruby_mode, rst.mode)
265 _, n = insert_after(wv, n, rtlr[i])
266 _, n = insert_after(wv, n, rtlp[i])
268 -- w.value: (whatsit) .. r1 .. p1 .. r2 .. p2
269 node.direct.write(w); return w,wv
273 function luatexja.ruby.texiface(rst, rtlr, rtlp)
274 if #rtlr ~= #rtlp then
275 for i=1, #rtlr do node_free(rtlr[i]) end
276 for i=1, #rtlp do node_free(rtlp[i]) end
277 ltjb.package_error('luatexja-ruby',
278 'Group count mismatch between the ruby and\n' ..
279 'the body (' .. #rtlr .. ' != ' .. #rtlp .. ').',
284 if getfield(rtlr[i], 'width') > getfield(rtlp[i], 'width') then
288 if f then -- モノルビ * n
289 local r,p = {true}, {true}
291 r[1] = rtlr[i]; p[1] = rtlp[i]; texiface_low(rst, r, p)
294 local w, wv = texiface_low(rst, rtlr, rtlp)
295 local id = make_uniq_id(w)
296 set_attr(wv, attr_ruby_id, id)
301 ----------------------------------------------------------------
303 ----------------------------------------------------------------
305 -- r, p の中身のノードは再利用される
306 local function enlarge_parent(r, p, ppre, pmid, ppost, mapre, mapost, intmode)
307 -- r: ルビ部分の格納された box,p: 同,親文字
308 local rwidth = getfield(r, 'width')
309 local sumprot = rwidth - getfield(p, 'width') -- >0
310 local pre_intrusion, post_intrusion
311 if intmode == 0 then -- とりあえず組んでから決める
312 p = enlarge(p, rwidth, ppre, pmid, ppost, 0, 0)
313 pre_intrusion = min(mapre, round(ppre*getfield(p, 'glue_set')*65536))
314 post_intrusion = min(mapost, round(ppost*getfield(p, 'glue_set')*65536))
315 elseif intmode == 1 then
316 pre_intrusion = min(mapre, sumprot);
317 post_intrusion = min(mapost, max(sumprot-pre_intrusion, 0))
318 p = enlarge(p, rwidth, ppre, pmid, ppost, pre_intrusion, post_intrusion)
319 elseif intmode == 2 then
320 post_intrusion = min(mapost, sumprot);
321 pre_intrusion = min(mapre, max(sumprot-post_intrusion, 0))
322 p = enlarge(p, rwidth, ppre, pmid, ppost, pre_intrusion, post_intrusion)
324 local n = min(mapre, mapost)*2
326 pre_intrusion = n/2; post_intrusion = n/2
328 pre_intrusion = floor(sumprot/2); post_intrusion = sumprot - pre_intrusion
330 p = enlarge(p, rwidth, ppre, pmid, ppost, pre_intrusion, post_intrusion)
331 pre_intrusion = min(mapre, pre_intrusion + round(ppre*getfield(p, 'glue_set')*65536))
332 post_intrusion = min(mapost, post_intrusion + round(ppost*getfield(p, 'glue_set')*65536))
334 setfield(r, 'shift', -pre_intrusion)
335 local rwidth = rwidth - pre_intrusion - post_intrusion
336 setfield(r, 'width', rwidth)
337 setfield(p, 'width', rwidth)
338 local ps = getlist(p)
339 setfield(ps, 'width', getfield(ps, 'width') - pre_intrusion)
340 return r, p, post_intrusion
344 -- returned value: <new box>, <ruby width>, <post_intrusion>
346 local function new_ruby_box(r, p, ppre, pmid, ppost,
347 mapre, mapost, imode, rgap)
348 local post_intrusion = 0
349 local intmode = imode%4
350 local rpre, rmid, rpost, rsmash
351 imode = floor(imode/262144); rsmash = (imode%2 ==1)
352 imode = floor(imode/2); rpost = imode%8;
353 imode = (imode-rpost)/8; rmid = imode%8;
354 imode = (imode-rmid)/8; rpre = imode%8
355 if getfield(r, 'width') > getfield(p, 'width') then -- change the width of p
356 r, p, post_intrusion = enlarge_parent(r, p, ppre, pmid, ppost, mapre, mapost, intmode)
357 elseif getfield(r, 'width') < getfield(p, 'width') then -- change the width of r
358 r = enlarge(r, getfield(p, 'width'), rpre, rmid, rpost, 0, 0)
360 local need_repack = false
361 -- margin が大きくなりすぎた時の処理
362 if round(rpre*getfield(r, 'glue_set')*65536) > max_margin then
363 local ps = getlist(r); need_repack = true
364 setfield(ps, 'width', max_margin)
365 setfield(ps, 'stretch', 1) -- 全く伸縮しないのも困る
367 if round(rpost*getfield(r, 'glue_set')*65536) > max_margin then
368 local ps = node_tail(getlist(r)); need_repack = true
369 setfield(ps, 'width', max_margin)
370 setfield(ps, 'stretch', 1) -- 全く伸縮しないのも困る
374 r = node.direct.hpack(getlist(r), getfield(r, 'width'), 'exactly')
375 setfield(rt, 'head', nil); node_free(rt);
378 local a, k = node_new(id_rule), node_new(id_kern, 1)
379 setfield(a, 'width', 0); setfield(a, 'height', 0)
380 setfield(a, 'depth', 0); setfield(k, 'kern', rgap)
381 insert_after(r, r, a); insert_after(r, a, k);
382 insert_after(r, k, p); setfield(p, 'next', nil)
383 a = node.direct.vpack(r); setfield(a, 'shift', 0)
384 set_attr(a, attr_ruby, post_intrusion)
385 if rsmash or getfield(a, 'height')<getfield(p, 'height') then
386 local k = node_new(id_kern, 1)
387 setfield(k, 'kern', -getfield(a, 'height')+getfield(p, 'height'))
388 setfield(a, 'head', k); insert_before(r, r, k)
389 setfield(a, 'height', getfield(p, 'height'))
392 return a, getfield(r, 'width'), post_intrusion
396 -- High-level routine in pre_linebreak_filter
397 local post_intrusion_backup
398 local max_allow_pre, max_allow_post
401 -- 中付き熟語ルビ,cmp containers
402 -- 「文字の構成を考えた」やつはどうしよう
403 local function pre_low_cal_box(w, cmp)
407 -- kf[i] : container 1--i からなる行末形
408 -- kf[cmp+i] : container i--cmp からなる行頭形
410 local wv = getfield(w, 'value')
411 local mdt -- nt*: node temp
412 local coef = {} -- 連立一次方程式の拡大係数行列
413 local rtb = expand_3bits(has_attr(wv, attr_ruby_stretch))
414 local rgap = has_attr(wv, attr_ruby_intergap)
415 local intmode = floor(has_attr(wv, attr_ruby_mode)/4)
417 -- node list 展開・行末形の計算
418 local nt, nta, ntb = wv, nil, nil -- nt*: node temp
420 nt = node_next(nt); rb[i] = nt; nta = concat(nta, node_copy(nt))
421 nt = node_next(nt); pb[i] = nt; ntb = concat(ntb, node_copy(nt))
423 for j = 1, 2*i do coef[i][j] = 1 end
424 for j = 2*i+1, 2*cmp+1 do coef[i][j] = 0 end
425 kf[i], coef[i][2*cmp+2]
426 = new_ruby_box(node_copy(nta), node_copy(ntb),
427 rtb[6], rtb[5], rtb[4], max_allow_pre, 0, intmode, rgap)
429 node_free(nta); node_free(ntb)
432 local nta, ntb = nil, nil
435 for j = 1, 2*i-1 do coef[cmp+i][j] = 0 end
436 for j = 2*i, 2*cmp+1 do coef[cmp+i][j] = 1 end
437 nta = concat(node_copy(rb[i]), nta); ntb = concat(node_copy(pb[i]), ntb)
438 kf[cmp+i], coef[cmp+i][2*cmp+2]
439 = new_ruby_box(node_copy(nta), node_copy(ntb),
440 rtb[9], rtb[8], rtb[7], 0, max_allow_post, intmode, rgap)
443 -- ここで,nta, ntb には全 container を連結した box が入っているので
446 for j = 1, 2*cmp+1 do coef[2*cmp+1][j] = 1 end
447 kf[2*cmp+1], coef[2*cmp+1][2*cmp+2], post_intrusion_backup
448 = new_ruby_box(nta, ntb, rtb[3], rtb[2], rtb[1],
449 max_allow_pre, max_allow_post, intmode, rgap)
451 -- w.value の node list 更新.
453 node.direct.flush_list(node_next(wv))
454 for i = 1, 2*cmp+1 do setfield(nt, 'next', kf[i]); nt = kf[i] end
456 if cmp==1 then solve_1(coef)
457 elseif cmp==2 then solve_2(coef)
459 gauss(coef) -- 掃きだし法で連立方程式形 coef を解く
466 local traverse_id = node.direct.traverse_id
467 function first_whatsit(n) -- n 以後で最初の whatsit
468 for h in traverse_id(id_whatsit, n) do
475 local next_cluster_array = {}
477 local function pre_low_app_node(head, w, cmp, coef, ht, dp)
479 local nt = node_new(id_glue)
480 setglue(nt, coef[1][2*cmp+2], 0, 0, 0, 0)
481 set_attr(nt, attr_ruby, 1); set_attr(w, attr_ruby, 2)
482 head = insert_before(head, w, nt)
486 local nta = node_new(id_rule);
487 setfield(nta, 'width', coef[i*2][2*cmp+2])
488 setfield(nta, 'height', ht); setfield(nta, 'depth', dp)
489 setfield(nta, 'subtype', 0)
490 insert_after(head, nt, nta)
491 set_attr(nta, attr_ruby, 2*i+1)
493 if i~=cmp or not next_cluster_array[w] then
494 nt = node_new(id_glue); insert_after(head, nta, nt)
496 nt = next_cluster_array[w]
498 setglue(nt, coef[i*2+1][2*cmp+2], 0, 0, 0, 0)
499 set_attr(nt, attr_ruby, 2*i+2)
501 tex.setattribute('global', attr_ruby, -0x7FFFFFFF)
502 setfield(w, 'user_id', RUBY_POST)
503 next_cluster_array[w]=nil
504 return head, first_whatsit(node_next(nt))
507 local function pre_high(ahead)
508 if not ahead then return ahead end
509 local head = to_direct(ahead)
510 post_intrusion_backup = 0
511 local n = first_whatsit(head)
513 if getsubtype(n) == sid_user and getfield(n, 'user_id') == RUBY_PRE then
514 local nv = getfield(n, 'value')
515 max_allow_pre = has_attr(nv, attr_ruby_maxprep) or 0
516 local atr = has_attr(n, attr_ruby) or 0
517 if max_allow_pre < 0 then
519 -- 直前のルビで intrusion がおこる可能性あり.
520 -- 前 run のデータが残っていればそれを使用,
521 -- そうでなければ行中形のデータを利用する
522 local op = old_break_info[atr] or post_intrusion_backup
523 max_allow_pre = max(0, -max_allow_pre - op)
525 max_allow_pre = -max_allow_pre
528 post_intrusion_backup = 0
529 max_allow_post = has_attr(nv, attr_ruby_maxpostp) or 0
530 max_margin = has_attr(nv, attr_ruby_maxmargin) or 0
531 local coef = pre_low_cal_box(n, getfield(nv, 'value'))
532 local s = node_tail(nv) --ルビ文字
533 head, n = pre_low_app_node(
534 head, n, getfield(nv, 'value'), coef,
535 getfield(s, 'height'), getfield(s, 'depth')
538 n = first_whatsit(node_next(n))
543 luatexbase.add_to_callback('pre_linebreak_filter', pre_high, 'ltj.ruby.pre', 100)
544 luatexbase.add_to_callback('hpack_filter', pre_high, 'ltj.ruby.pre', 100)
546 ----------------------------------------------------------------
548 ----------------------------------------------------------------
551 local function write_aux(wv, num)
552 local id = has_attr(wv, attr_ruby_id)
553 if id>0 and cache_handle then
555 'luatexja.ruby.old_break_info['
556 .. tostring(id) .. ']=' .. num
561 post_lown = function (rs, rw, cmp, ch)
562 -- ch: the head of `current' hlist
563 if #rs ==0 or not rw then return ch end
564 local hn = has_attr(rs[1], attr_ruby)
565 local fn = has_attr(rs[#rs], attr_ruby)
566 local wv = getfield(rw, 'value')
569 local hn = node_tail(wv)
571 insert_after(ch, rs[1], hn)
572 set_attr(hn, attr_icflag, PROCESSED)
573 write_aux(wv, has_attr(hn, attr_ruby))-- 行中形
575 local deg, hn = (fn-1)/2, wv
576 for i = 1, deg do hn = node_next(hn) end;
578 setfield(hn, 'next', nil)
579 insert_after(ch, rs[1], hn)
580 set_attr(hn, attr_icflag, PROCESSED)
581 write_aux(wv, has_attr(hn, attr_ruby))
584 local deg, hn = max((hn-1)/2,2), wv
585 for i = 1, cmp+deg-1 do hn = node_next(hn) end
586 -- -1 is needed except the case hn = 3,
587 -- because a ending-line form is removed already from the list
588 node_remove(wv, hn); setfield(hn, 'next', nil)
589 insert_after(ch, rs[1], hn)
590 set_attr(hn, attr_icflag, PROCESSED)
591 if fn == 2*cmp-1 then
592 write_aux(wv, has_attr(hn, attr_ruby))
597 ch = node_remove(ch, ri); node_free(ri);
600 if fn >= 2*cmp+1 then node_free(rw) end
605 local function post_high_break(head)
606 local rs = {} -- rs: sequence of ruby_nodes,
607 local rw = nil -- rw: main whatsit
608 local cmp = -2 -- dummy
609 for h in node.direct.traverse_id(id_hlist, to_direct(head)) do
610 for i = 1, #rs do rs[i] = nil end
611 local ha = getlist(h)
613 local hai = getid(ha)
614 local i = ((hai == id_glue and getsubtype(ha)==0)
615 or (hai == id_rule and getsubtype(ha)==0)
616 or (hai == id_whatsit and getsubtype(ha)==sid_user
617 and getfield(ha, 'user_id', RUBY_POST)))
618 and has_attr(ha, attr_ruby) or 0
622 setfield(h, 'head', post_lown(rs, rw, cmp, getlist(h)))
623 for i = 2, #rs do rs[i] = nil end -- rs[1] is set by the next statement
624 rs[1], rw = ha, nil; ha = node_next(ha)
627 cmp = getfield(getfield(rw, 'value'), 'value')
628 local hb, hc = node_remove(getlist(h), rw)
629 setfield(h, 'head', hb); ha = hc
631 rs[#rs+1] = ha; ha = node_next(ha)
634 setfield(h, 'head', post_lown(rs, rw, cmp, getlist(h)))
639 local function post_high_hbox(ahead)
640 local ha = to_direct(ahead); local head = ha
641 local rs = {}; -- rs: sequence of ruby_nodes,
642 local rw = nil; -- rw: main whatsit
645 local hai = getid(ha)
646 local i = ((hai == id_glue and getsubtype(ha)==0)
647 or (hai == id_rule and getsubtype(ha)==0)
648 or (hai == id_whatsit and getsubtype(ha)==sid_user
649 and getfield(ha, 'user_id', RUBY_POST)))
650 and has_attr(ha, attr_ruby) or 0
654 head = post_lown(rs, rw, cmp, head)
655 for i = 2, #rs do rs[i] = nil end -- rs[1] is set by the next statement
656 rs[1], rw = ha, nil; ha = node_next(ha)
659 cmp = getfield(getfield(rw, 'value'), 'value')
660 head, ha = node_remove(head, rw)
662 rs[#rs+1] = ha; ha = node_next(ha)
665 return to_node(post_lown(rs, rw, cmp, head))
668 luatexbase.add_to_callback('post_linebreak_filter', post_high_break, 'ltj.ruby.post_break', 100)
669 luatexbase.add_to_callback('hpack_filter', post_high_hbox, 'ltj.ruby.post_hbox', 101)
672 ----------------------------------------------------------------
673 -- for jfmglue callbacks
674 ----------------------------------------------------------------
676 local RIPRE = luatexja.stack_table_index.RIPRE
677 local function whatsit_callback(Np, lp, Nq)
678 if Np.nuc then return Np
679 elseif getfield(lp, 'user_id') == RUBY_PRE then
680 Np.first, Np.nuc, Np.last = lp, lp, lp
681 local lpv = getfield(lp, 'value')
682 local x = node_next(node_next(lpv))
683 Np.last_char = luatexja.jfmglue.check_box_high(Np, getlist(x), nil)
684 if Nq.id ~=id_pbox_w then
685 if type(Nq.char)=='number' then
687 if has_attr(lpv, attr_ruby_maxprep) < 0 then -- auto
688 local p = round((ltjs.table_current_stack[RIPRE + Nq.char] or 0)
689 *has_attr(lpv, attr_ruby))
690 if has_attr(lpv, attr_ruby_mode)%2 == 0 then -- intrusion 無効
693 set_attr(lpv, attr_ruby_maxprep, -p)
696 set_attr(lp, attr_ruby, Nq.prev_ruby)
698 elseif has_attr(lpv, attr_ruby_maxprep) < 0 then -- auto
699 if Nq.char == 'parbdd' then
700 local p = round((ltjs.table_current_stack[RIPRE-1] or 0)
701 *has_attr(lpv, attr_ruby))
703 if has_attr(lpv, attr_ruby_mode)%2 == 0 then -- intrusion 無効
706 set_attr(lpv, attr_ruby_maxprep, p)
708 set_attr(lpv, attr_ruby_maxprep, 0)
711 elseif has_attr(lpv, attr_ruby_maxprep) < 0 then -- auto
712 set_attr(lpv, attr_ruby_maxprep, 0)
719 luatexbase.add_to_callback("luatexja.jfmglue.whatsit_getinfo", whatsit_callback,
720 "luatexja.ruby.np_info", 1)
724 local RIPOST = luatexja.stack_table_index.RIPOST
725 local function whatsit_after_callback(s, Nq, Np)
726 if not s and getfield(Nq.nuc, 'user_id') == RUBY_PRE then
728 local last_glue = node_new(id_glue)
729 set_attr(last_glue, attr_icflag, 0)
730 insert_before(Nq.nuc, Np.first, last_glue)
732 next_cluster_array[Nq.nuc] = last_glue -- ルビ処理用のグルー
734 local nqnv = getfield(Nq.nuc, 'value')
735 local x = node_next(node_next(nqnv))
736 for i = 2, getfield(nqnv, 'value') do x = node_next(node_next(x)) end
737 Nq.last_char = luatexja.jfmglue.check_box_high(Nq, getlist(x), nil)
738 luatexja.jfmglue.after_hlist(Nq)
739 if Np and Np.id ~=id_pbox_w and type(Np.char)=='number' then
741 local rm = has_attr(nqnv, attr_ruby_mode)
742 if has_attr(nqnv, attr_ruby_maxpostp) < 0 then -- auto
743 local p = round((ltjs.table_current_stack[RIPOST + Np.char] or 0)
744 *has_attr(nqnv, attr_ruby))
745 if rm%2 == 0 then -- intrusion 無効
749 local q = has_attr(nqnv, attr_ruby_maxprep)
752 set_attr(nqnv, attr_ruby_maxprep, p)
755 set_attr(nqnv, attr_ruby_maxpostp, p)
757 Np.prev_ruby = has_attr(getfield(Nq.nuc, 'value'), attr_ruby_id)
758 -- 前のクラスタがルビであったことのフラグ
760 local nqnv = getfield(Nq.nuc, 'value')
761 if has_attr(nqnv, attr_ruby_maxpostp) < 0 then -- auto
762 set_attr(nqnv, attr_ruby_maxpostp, 0)
763 if has_attr(nqnv, attr_ruby_mode)%4 >= 2 then
764 set_attr(nqnv, attr_ruby_maxprep, 0)
773 luatexbase.add_to_callback("luatexja.jfmglue.whatsit_after", whatsit_after_callback,
774 "luatexja.ruby.np_info_after", 1)