4 luatexbase.provides_module({
5 name = 'luatexja.ruby',
7 description = 'Ruby annotation',
9 module('luatexja.ruby', package.seeall)
10 local err, warn, info, log = luatexbase.errwarinf(_NAME)
12 luatexja.load_module('stack'); local ltjs = luatexja.stack
14 local Dnode = node.direct or node
16 local nullfunc = function(n) return n end
17 local to_node = (Dnode ~= node) and Dnode.tonode or nullfunc
18 local to_direct = (Dnode ~= node) and Dnode.todirect or nullfunc
20 local setfield = (Dnode ~= node) and Dnode.setfield or function(n, i, c) n[i] = c end
21 local getfield = (Dnode ~= node) and Dnode.getfield or function(n, i) return n[i] end
22 local getid = (Dnode ~= node) and Dnode.getid or function(n) return n.id end
23 local getfont = (Dnode ~= node) and Dnode.getfont or function(n) return n.font end
24 local getlist = (Dnode ~= node) and Dnode.getlist or function(n) return n.head end
25 local getchar = (Dnode ~= node) and Dnode.getchar or function(n) return n.char end
26 local getsubtype = (Dnode ~= node) and Dnode.getsubtype or function(n) return n.subtype end
28 local node_new = Dnode.new
29 local node_remove = Dnode.remove
30 local node_next = (Dnode ~= node) and Dnode.getnext or node.next
31 local node_copy, node_free, node_tail = Dnode.copy, Dnode.free, Dnode.tail
32 local has_attr, set_attr = Dnode.has_attribute, Dnode.set_attribute
33 local insert_before, insert_after = Dnode.insert_before, Dnode.insert_after
35 local id_hlist = node.id('hlist')
36 local id_vlist = node.id('vlist')
37 local id_rule = node.id('rule')
38 local id_whatsit = node.id('whatsit')
39 local id_glue = node.id('glue')
40 local id_kern = node.id('kern')
41 local id_penalty = node.id('penalty')
42 local id_glue_spec = node.id('glue_spec')
43 local sid_user = node.subtype('user_defined')
44 local ltjs_get_stack_table = luatexja.stack.get_stack_table
45 local id_pbox_w = 258 -- cluster which consists of a whatsit
47 local attr_icflag = luatexbase.attributes['ltj@icflag']
48 -- ルビ処理用の attribute は他のやつの流用なので注意!
50 local attr_ruby_maxprep = luatexbase.attributes['ltj@charclass']
51 local attr_ruby_maxpostp = luatexbase.attributes['ltj@kcat0']
52 local attr_ruby_maxmargin = luatexbase.attributes['ltj@kcat1']
53 local attr_ruby_stretch = luatexbase.attributes['ltj@kcat2']
54 local attr_ruby_mode = luatexbase.attributes['ltj@kcat3']
55 local attr_ruby_id = luatexbase.attributes['ltj@kcat4'] -- uniq id
56 local attr_ruby_intergap = luatexbase.attributes['ltj@kcat5']
57 local attr_ruby = luatexbase.attributes['ltj@rubyattr']
58 -- 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
59 -- * (whatsit) では JAglue 処理時に,
60 -- 「2つ前のクラスタもルビ」 ==> そのルビクラスタの id
61 -- otherwise ==> unset
62 -- * (whatsit).value node ではルビ全角の値(sp単位)
63 -- * 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
64 -- * (whatsit).value に続く整形済み vbox たちでは post_intrusion の値
65 local cat_lp = luatexbase.catcodetables['latex-package']
67 local round, floor = tex.round, math.floor
68 local min, max = math.min, math.max
70 luatexja.userid_table.RUBY_PRE = luatexbase.newuserwhatsitid('ruby_pre', 'luatexja')
71 luatexja.userid_table.RUBY_POST = luatexbase.newuserwhatsitid('ruby_post', 'luatexja')
72 local RUBY_PRE = luatexja.userid_table.RUBY_PRE
73 local RUBY_POST = luatexja.userid_table.RUBY_POST
75 ----------------------------------------------------------------
77 ----------------------------------------------------------------
79 function cpbox() return node_copy(Dnode.getbox(0)) end
81 function cpbox() return node.copy(tex.box[0]) end
85 ----------------------------------------------------------------
87 ----------------------------------------------------------------
89 local function gauss(coef)
90 -- #coef 式,#coef 変数の連立1次方程式系を掃きだし法で解く.
96 coef[i], coef[j] = coef[j], coef[i]; break
101 local d = coef[i][i];
104 for k = 1, deg+1 do coef[j][k] = coef[j][k] - e*coef[i][k]/d end
106 for k = 1, deg+1 do coef[i][k] = coef[i][k]/d end
112 local function solve_1(coef)
113 local a, b, c = coef[1][4], coef[2][4], coef[3][4]
114 coef[1][4], coef[2][4], coef[3][4] = c-b, a+b-c, c-a
118 local function solve_2(coef)
119 local a, b, c, d, e = coef[1][6], coef[2][6], coef[3][6], coef[4][6], coef[5][6]
120 coef[1][6], coef[2][6], coef[3][6], coef[4][6], coef[5][6]
121 = e-c, a+c-e, e-a-d, b+d-e, e-b
126 -- 実行回数 + ルビ中身 から uniq_id を作る関数
127 old_break_info = {} -- public, 前 run 時の分割情報
129 function read_old_break_info()
131 local fname = tex.jobname .. '.ltjruby'
132 local real_file = kpse.find_file(fname)
133 if real_file then dofile(real_file) end
134 cache_handle = io.open(fname, 'w')
140 make_uniq_id = function (w)
141 exec_count = exec_count + 1
146 -- concatenation of boxes: reusing nodes
147 -- ルビ組版が行われている段落/hboxでの設定が使われる.
148 -- ルビ文字を格納しているボックスでの設定ではない!
149 local function concat(f, b)
153 setfield(node_tail(h), 'next', getlist(b))
154 setfield(f, 'head', nil); node_free(f)
155 setfield(b, 'head', nil); node_free(b)
156 return Dnode.hpack(luatexja.jfmglue.main(h,false))
163 local h = node_new(id_hlist)
164 setfield(h, 'subtype', 0)
165 setfield(h, 'width', 0)
166 setfield(h, 'height', 0)
167 setfield(h, 'depth', 0)
168 setfield(h, 'glue_set', 0)
169 setfield(h, 'glue_order', 0)
170 setfield(h, 'head', nil)
175 local function expand_3bits(num)
176 local t = {}; local a = num
178 t[i] = a%8; a = floor(a/8)
182 ----------------------------------------------------------------
184 ----------------------------------------------------------------
186 -- box の中身のノードは再利用される
189 local FROM_JFM = luatexja.icflag_table.FROM_JFM
190 local PROCESSED = luatexja.icflag_table.PROCESSED
191 local KANJI_SKIP = luatexja.icflag_table.KANJI_SKIP
192 local KANJI_SKIP_JFM = luatexja.icflag_table.KANJI_SKIP_JFM
193 local XKANJI_SKIP = luatexja.icflag_table.XKANJI_SKIP
194 local XKANJI_SKIP_JFM= luatexja.icflag_table.XKANJI_SKIP_JFM
195 enlarge = function (box, new_width, pre, middle, post, prenw, postnw)
196 -- pre, middle, post: 伸縮比率
197 -- prenw, postnw: 前後の自然長 (sp)
198 local h = getlist(box);
199 local hh, hd = getfield(box, 'height'), getfield(box, 'depth')
202 local hic = has_attr(hx, attr_icflag)
203 if (hic == KANJI_SKIP) or (hic == KANJI_SKIP_JFM)
204 or (hic == XKANJI_SKIP) or (hic == XKANJI_SKIP_JFM)
205 or ((hic<=FROM_JFM+2) and (hic>=FROM_JFM-2)) then
207 if getid(hx) == id_kern then
208 local k = node_new(id_glue)
209 local ks = node_new(id_glue_spec)
210 setfield(ks, 'width', getfield(hx, 'kern'))
211 setfield(ks, 'stretch_order', 2)
212 setfield(ks, 'stretch', round(middle*65536))
213 setfield(ks, 'shrink_order', 0); setfield(ks, 'shrink', 0)
214 setfield(k, 'subtype', 0); setfield(k, 'spec', ks)
215 h = insert_after(h, hx, k);
216 h = node_remove(h, hx); node_free(hx); hx = k
218 local old_spec = getfield(hx, 'spec')
219 local ks = node_copy(old_spec)
220 setfield(ks, 'stretch_order', 2)
221 setfield(ks, 'stretch', round(middle*65536))
222 setfield(ks, 'shrink_order', 0); setfield(ks, 'shrink', 0)
223 setfield(hx, 'spec', ks)
224 -- decrease old_spec's reference count
225 local b = node_new(id_glue)
226 setfield(b, 'spec', old_spec); node_free(b)
232 local k = node_new(id_glue);
233 local ks = node_new(id_glue_spec)
234 setfield(ks, 'width', prenw)
235 setfield(ks, 'stretch_order', 2); setfield(ks, 'stretch', round(pre*65536))
236 setfield(ks, 'shrink_order', 0); setfield(ks, 'shrink', 0)
237 setfield(k, 'subtype', 0); setfield(k, 'spec', ks)
238 h = insert_before(h, h, k);
240 local k = node_new(id_glue);
241 local ks = node_new(id_glue_spec);
242 setfield(ks, 'width', postnw)
243 setfield(ks, 'stretch_order', 2); setfield(ks, 'stretch', round(post*65536))
244 setfield(ks, 'shrink_order', 0); setfield(ks, 'shrink', 0)
245 setfield(k, 'subtype', 0);setfield(k, 'spec', ks)
246 insert_after(h, node_tail(h), k);
248 setfield(box, 'head', nil); node_free(box)
249 box = Dnode.hpack(h, new_width, 'exactly')
250 setfield(box, 'height', hh)
251 setfield(box, 'depth', hd)
257 ----------------------------------------------------------------
259 ----------------------------------------------------------------
261 -- rtlr: ルビ部分のボックスたち r1, r2, ...
262 -- rtlp: 親文字 のボックスたち p1, p2, ...
263 local function texiface_low(rst, rtlr, rtlp)
264 local w = node_new(id_whatsit, sid_user)
265 setfield(w, 'type', 110); setfield(w, 'user_id', RUBY_PRE)
266 local wv = node_new(id_whatsit, sid_user)
267 setfield(w, 'value', to_node(wv))
268 setfield(wv, 'type', 100)
269 setfield(wv, 'value', floor(#rtlr))
270 set_attr(wv, attr_ruby, rst.rubyzw)
271 set_attr(wv, attr_ruby_maxmargin, rst.maxmargin)
272 set_attr(wv, attr_ruby_maxprep, rst.pre)
273 set_attr(wv, attr_ruby_maxpostp, rst.post)
274 set_attr(wv, attr_ruby_intergap, rst.intergap)
275 set_attr(wv, attr_ruby_stretch, rst.stretch)
276 set_attr(wv, attr_ruby_mode, rst.mode)
279 _, n = insert_after(wv, n, rtlr[i])
280 _, n = insert_after(wv, n, rtlp[i])
282 -- w.value: (whatsit) .. r1 .. p1 .. r2 .. p2
283 Dnode.write(w); return w,wv
287 function texiface(rst, rtlr, rtlp)
288 if #rtlr ~= #rtlp then
289 for i=1, #rtlr do node_free(rtlr[i]) end
290 for i=1, #rtlp do node_free(rtlp[i]) end
291 luatexja.base.package_error('luatexja-ruby',
292 'Group count mismatch between the ruby and\n' ..
293 'the body (' .. #rtlr .. ' != ' .. #rtlp .. ').',
298 if getfield(rtlr[i], 'width') > getfield(rtlp[i], 'width') then
302 if f then -- モノルビ * n
303 local r,p = {true}, {true}
305 r[1] = rtlr[i]; p[1] = rtlp[i]; texiface_low(rst, r, p)
308 local w, wv = texiface_low(rst, rtlr, rtlp)
309 local id = make_uniq_id(w)
310 set_attr(wv, attr_ruby_id, id)
315 ----------------------------------------------------------------
317 ----------------------------------------------------------------
319 -- r, p の中身のノードは再利用される
320 local function enlarge_parent(r, p, ppre, pmid, ppost, mapre, mapost, intmode)
321 -- r: ルビ部分の格納された box,p: 同,親文字
322 local rwidth = getfield(r, 'width')
323 local sumprot = rwidth - getfield(p, 'width') -- >0
324 local pre_intrusion, post_intrusion
325 if intmode == 0 then -- とりあえず組んでから決める
326 p = enlarge(p, rwidth, ppre, pmid, ppost, 0, 0)
327 pre_intrusion = min(mapre, round(ppre*getfield(p, 'glue_set')*65536))
328 post_intrusion = min(mapost, round(ppost*getfield(p, 'glue_set')*65536))
329 elseif intmode == 1 then
330 pre_intrusion = min(mapre, sumprot);
331 post_intrusion = min(mapost, max(sumprot-pre_intrusion, 0))
332 p = enlarge(p, rwidth, ppre, pmid, ppost, pre_intrusion, post_intrusion)
333 elseif intmode == 2 then
334 post_intrusion = min(mapost, sumprot);
335 pre_intrusion = min(mapre, max(sumprot-post_intrusion, 0))
336 p = enlarge(p, rwidth, ppre, pmid, ppost, pre_intrusion, post_intrusion)
338 local n = min(mapre, mapost)*2
340 pre_intrusion = n/2; post_intrusion = n/2
342 pre_intrusion = floor(sumprot/2); post_intrusion = sumprot - pre_intrusion
344 p = enlarge(p, rwidth, ppre, pmid, ppost, pre_intrusion, post_intrusion)
345 pre_intrusion = min(mapre, pre_intrusion + round(ppre*getfield(p, 'glue_set')*65536))
346 post_intrusion = min(mapost, post_intrusion + round(ppost*getfield(p, 'glue_set')*65536))
348 setfield(r, 'shift', -pre_intrusion)
349 local rwidth = rwidth - pre_intrusion - post_intrusion
350 setfield(r, 'width', rwidth)
351 setfield(p, 'width', rwidth)
352 local ps = getfield(getlist(p), 'spec')
353 setfield(ps, 'width', getfield(ps, 'width') - pre_intrusion)
354 return r, p, post_intrusion
358 -- returned value: <new box>, <ruby width>, <post_intrusion>
360 local function new_ruby_box(r, p, ppre, pmid, ppost,
361 mapre, mapost, imode, rgap)
362 local post_intrusion = 0
363 local intmode = imode%4
364 local rpre, rmid, rpost, rsmash
365 imode = floor(imode/262144); rsmash = (imode%2 ==1)
366 imode = floor(imode/2); rpost = imode%8;
367 imode = (imode-rpost)/8; rmid = imode%8;
368 imode = (imode-rmid)/8; rpre = imode%8
369 if getfield(r, 'width') > getfield(p, 'width') then -- change the width of p
370 r, p, post_intrusion = enlarge_parent(r, p, ppre, pmid, ppost, mapre, mapost, intmode)
371 elseif getfield(r, 'width') < getfield(p, 'width') then -- change the width of r
372 r = enlarge(r, getfield(p, 'width'), rpre, rmid, rpost, 0, 0)
374 local need_repack = false
375 -- margin が大きくなりすぎた時の処理
376 if round(rpre*getfield(r, 'glue_set')*65536) > max_margin then
377 local ps = getfield(getlist(r), 'spec'); need_repack = true
378 setfield(ps, 'width', max_margin)
379 setfield(ps, 'stretch', 1) -- 全く伸縮しないのも困る
381 if round(rpost*getfield(r, 'glue_set')*65536) > max_margin then
382 local ps = getfield(node_tail(getlist(r)), 'spec'); need_repack = true
383 setfield(ps, 'width', max_margin)
384 setfield(ps, 'stretch', 1) -- 全く伸縮しないのも困る
388 r = Dnode.hpack(getlist(r), getfield(r, 'width'), 'exactly')
389 setfield(rt, 'head', nil); node_free(rt);
392 local a, k = node_new(id_rule), node_new(id_kern)
393 setfield(a, 'width', 0); setfield(a, 'height', 0)
394 setfield(a, 'depth', 0); setfield(k, 'kern', rgap)
395 insert_after(r, r, a); insert_after(r, a, k);
396 insert_after(r, k, p); setfield(p, 'next', nil)
397 a = Dnode.vpack(r); setfield(a, 'shift', 0)
398 set_attr(a, attr_ruby, post_intrusion)
399 if rsmash or getfield(a, 'height')<getfield(p, 'height') then
400 local k = node_new(id_kern)
401 setfield(k, 'kern', -getfield(a, 'height')+getfield(p, 'height'))
402 setfield(a, 'head', k); insert_before(r, r, k)
403 setfield(a, 'height', getfield(p, 'height'))
406 return a, getfield(r, 'width'), post_intrusion
410 -- High-level routine in pre_linebreak_filter
411 local post_intrusion_backup
412 local max_allow_pre, max_allow_post
415 -- 中付き熟語ルビ,cmp containers
416 -- 「文字の構成を考えた」やつはどうしよう
417 local function pre_low_cal_box(w, cmp)
421 -- kf[i] : container 1--i からなる行末形
422 -- kf[cmp+i] : container i--cmp からなる行頭形
424 local wv = getfield(w, 'value')
425 local mdt -- nt*: node temp
426 local coef = {} -- 連立一次方程式の拡大係数行列
427 local rtb = expand_3bits(has_attr(wv, attr_ruby_stretch))
428 local rgap = has_attr(wv, attr_ruby_intergap)
429 local intmode = floor(has_attr(wv, attr_ruby_mode)/4)
431 -- node list 展開・行末形の計算
432 local nt, nta, ntb = wv, nil, nil -- nt*: node temp
434 nt = node_next(nt); rb[i] = nt; nta = concat(nta, node_copy(nt))
435 nt = node_next(nt); pb[i] = nt; ntb = concat(ntb, node_copy(nt))
437 for j = 1, 2*i do coef[i][j] = 1 end
438 for j = 2*i+1, 2*cmp+1 do coef[i][j] = 0 end
439 kf[i], coef[i][2*cmp+2]
440 = new_ruby_box(node_copy(nta), node_copy(ntb),
441 rtb[6], rtb[5], rtb[4], max_allow_pre, 0, intmode, rgap)
443 node_free(nta); node_free(ntb)
446 local nta, ntb = nil, nil
449 for j = 1, 2*i-1 do coef[cmp+i][j] = 0 end
450 for j = 2*i, 2*cmp+1 do coef[cmp+i][j] = 1 end
451 nta = concat(node_copy(rb[i]), nta); ntb = concat(node_copy(pb[i]), ntb)
452 kf[cmp+i], coef[cmp+i][2*cmp+2]
453 = new_ruby_box(node_copy(nta), node_copy(ntb),
454 rtb[9], rtb[8], rtb[7], 0, max_allow_post, intmode, rgap)
457 -- ここで,nta, ntb には全 container を連結した box が入っているので
460 for j = 1, 2*cmp+1 do coef[2*cmp+1][j] = 1 end
461 kf[2*cmp+1], coef[2*cmp+1][2*cmp+2], post_intrusion_backup
462 = new_ruby_box(nta, ntb, rtb[3], rtb[2], rtb[1],
463 max_allow_pre, max_allow_post, intmode, rgap)
465 -- w.value の node list 更新.
467 Dnode.flush_list(node_next(wv))
468 for i = 1, 2*cmp+1 do setfield(nt, 'next', kf[i]); nt = kf[i] end
470 if cmp==1 then solve_1(coef)
471 elseif cmp==2 then solve_2(coef)
473 gauss(coef) -- 掃きだし法で連立方程式形 coef を解く
480 local traverse_id = Dnode.traverse_id
481 function first_whatsit(n) -- n 以後で最初の whatsit
482 for h in traverse_id(id_whatsit, n) do
489 local next_cluster_array = {}
491 local function pre_low_app_node(head, w, cmp, coef, ht, dp)
493 local nt, ntb = node_new(id_glue), node_new(id_glue_spec)
494 setfield(ntb, 'width', coef[1][2*cmp+2])
495 setfield(ntb, 'stretch_order', 0); setfield(ntb, 'stretch', 0)
496 setfield(ntb, 'shrink_order', 0); setfield(ntb, 'shrink', 0)
497 setfield(nt, 'subtype', 0); setfield(nt, 'spec', ntb)
498 set_attr(nt, attr_ruby, 1); set_attr(w, attr_ruby, 2)
499 head = insert_before(head, w, nt)
503 local nta = node_new(id_rule);
504 setfield(nta, 'width', coef[i*2][2*cmp+2])
505 setfield(nta, 'height', ht); setfield(nta, 'depth', dp)
506 setfield(nta, 'subtype', 0)
507 insert_after(head, nt, nta)
508 set_attr(nta, attr_ruby, 2*i+1)
510 local ntb = node_new(id_glue_spec);
511 setfield(ntb, 'width', coef[i*2+1][2*cmp+2])
512 setfield(ntb, 'stretch_order', 0); setfield(ntb, 'stretch', 0)
513 setfield(ntb, 'shrink_order', 0); setfield(ntb, 'shrink', 0)
514 if i~=cmp or not next_cluster_array[w] then
515 nt = node_new(id_glue); insert_after(head, nta, nt)
517 nt = next_cluster_array[w]
519 setfield(nt, 'subtype', 0); setfield(nt, 'spec', ntb)
520 set_attr(nt, attr_ruby, 2*i+2)
522 tex.setattribute('global', attr_ruby, -0x7FFFFFFF)
523 setfield(w, 'user_id', RUBY_POST)
524 next_cluster_array[w]=nil
525 return head, first_whatsit(node_next(nt))
528 local function pre_high(ahead)
529 if not ahead then return ahead end
530 local head = to_direct(ahead)
531 post_intrusion_backup = 0
532 local n = first_whatsit(head)
534 if getsubtype(n) == sid_user and getfield(n, 'user_id') == RUBY_PRE then
535 local nv = getfield(n, 'value')
536 max_allow_pre = has_attr(nv, attr_ruby_maxprep) or 0
537 local atr = has_attr(n, attr_ruby) or 0
538 if max_allow_pre < 0 then
540 -- 直前のルビで intrusion がおこる可能性あり.
541 -- 前 run のデータが残っていればそれを使用,
542 -- そうでなければ行中形のデータを利用する
543 local op = old_break_info[atr] or post_intrusion_backup
544 max_allow_pre = max(0, -max_allow_pre - op)
546 max_allow_pre = -max_allow_pre
549 post_intrusion_backup = 0
550 max_allow_post = has_attr(nv, attr_ruby_maxpostp) or 0
551 max_margin = has_attr(nv, attr_ruby_maxmargin) or 0
552 local coef = pre_low_cal_box(n, getfield(nv, 'value'))
553 local s = node_tail(nv) --ルビ文字
554 head, n = pre_low_app_node(
555 head, n, getfield(nv, 'value'), coef,
556 getfield(s, 'height'), getfield(s, 'depth')
559 n = first_whatsit(node_next(n))
564 luatexbase.add_to_callback('pre_linebreak_filter', pre_high, 'ltj.ruby.pre', 100)
565 luatexbase.add_to_callback('hpack_filter', pre_high, 'ltj.ruby.pre', 100)
567 ----------------------------------------------------------------
569 ----------------------------------------------------------------
572 local function write_aux(wv, num)
573 local id = has_attr(wv, attr_ruby_id)
574 if id>0 and cache_handle then
576 'luatexja.ruby.old_break_info['
577 .. tostring(id) .. ']=' .. num
582 post_lown = function (rs, rw, cmp, ch)
583 -- ch: the head of `current' hlist
584 if #rs ==0 or not rw then return ch end
585 local hn = has_attr(rs[1], attr_ruby)
586 local fn = has_attr(rs[#rs], attr_ruby)
587 local wv = getfield(rw, 'value')
590 local hn = node_tail(wv)
592 insert_after(ch, rs[1], hn)
593 set_attr(hn, attr_icflag, PROCESSED)
594 write_aux(wv, has_attr(hn, attr_ruby))-- 行中形
596 local deg, hn = (fn-1)/2, wv
597 for i = 1, deg do hn = node_next(hn) end;
599 setfield(hn, 'next', nil)
600 insert_after(ch, rs[1], hn)
601 set_attr(hn, attr_icflag, PROCESSED)
602 write_aux(wv, has_attr(hn, attr_ruby))
605 local deg, hn = max((hn-1)/2,2), wv
606 for i = 1, cmp+deg-1 do hn = node_next(hn) end
607 -- -1 is needed except the case hn = 3,
608 -- because a ending-line form is removed already from the list
609 node_remove(wv, hn); setfield(hn, 'next', nil)
610 insert_after(ch, rs[1], hn)
611 set_attr(hn, attr_icflag, PROCESSED)
612 if fn == 2*cmp-1 then
613 write_aux(wv, has_attr(hn, attr_ruby))
618 ch = node_remove(ch, ri); node_free(ri);
621 if fn >= 2*cmp+1 then node_free(rw) end
626 local function post_high_break(head)
627 local rs = {} -- rs: sequence of ruby_nodes,
628 local rw = nil -- rw: main whatsit
629 local cmp = -2 -- dummy
630 for h in Dnode.traverse_id(id_hlist, to_direct(head)) do
631 for i = 1, #rs do rs[i] = nil end
632 local ha = getlist(h)
634 local hai = getid(ha)
635 local i = ((hai == id_glue and getsubtype(ha)==0)
636 or (hai == id_rule and getsubtype(ha)==0)
637 or (hai == id_whatsit and getsubtype(ha)==sid_user
638 and getfield(ha, 'user_id', RUBY_POST)))
639 and has_attr(ha, attr_ruby) or 0
643 setfield(h, 'head', post_lown(rs, rw, cmp, getlist(h)))
644 for i = 2, #rs do rs[i] = nil end -- rs[1] is set by the next statement
645 rs[1], rw = ha, nil; ha = node_next(ha)
648 cmp = getfield(getfield(rw, 'value'), 'value')
649 local hb, hc = node_remove(getlist(h), rw)
650 setfield(h, 'head', hb); ha = hc
652 rs[#rs+1] = ha; ha = node_next(ha)
655 setfield(h, 'head', post_lown(rs, rw, cmp, getlist(h)))
660 local function post_high_hbox(ahead)
661 local ha = to_direct(ahead); local head = ha
662 local rs = {}; -- rs: sequence of ruby_nodes,
663 local rw = nil; -- rw: main whatsit
666 local hai = getid(ha)
667 local i = ((hai == id_glue and getsubtype(ha)==0)
668 or (hai == id_rule and getsubtype(ha)==0)
669 or (hai == id_whatsit and getsubtype(ha)==sid_user
670 and getfield(ha, 'user_id', RUBY_POST)))
671 and has_attr(ha, attr_ruby) or 0
675 head = post_lown(rs, rw, cmp, head)
676 for i = 2, #rs do rs[i] = nil end -- rs[1] is set by the next statement
677 rs[1], rw = ha, nil; ha = node_next(ha)
680 cmp = getfield(getfield(rw, 'value'), 'value')
681 head, ha = node_remove(head, rw)
683 rs[#rs+1] = ha; ha = node_next(ha)
686 return to_node(post_lown(rs, rw, cmp, head))
689 luatexbase.add_to_callback('post_linebreak_filter', post_high_break, 'ltj.ruby.post_break', 100)
690 luatexbase.add_to_callback('hpack_filter', post_high_hbox, 'ltj.ruby.post_hbox', 101)
693 ----------------------------------------------------------------
694 -- for jfmglue callbacks
695 ----------------------------------------------------------------
697 local RIPRE = luatexja.stack_table_index.RIPRE
698 local function whatsit_callback(Np, lp, Nq, bsl)
699 if Np.nuc then return Np
700 elseif getfield(lp, 'user_id') == RUBY_PRE then
701 Np.first, Np.nuc, Np.last = lp, lp, lp
702 local lpv = getfield(lp, 'value')
703 local x = node_next(node_next(lpv))
704 Np.last_char = luatexja.jfmglue.check_box_high(Np, getlist(x), nil)
705 if Nq.id ~=id_pbox_w then
706 if type(Nq.char)=='number' then
708 if has_attr(lpv, attr_ruby_maxprep) < 0 then -- auto
709 local p = round((ltjs.table_current_stack[RIPRE + Nq.char] or 0)
710 *has_attr(lpv, attr_ruby))
711 if has_attr(lpv, attr_ruby_mode)%2 == 0 then -- intrusion 無効
714 set_attr(lpv, attr_ruby_maxprep, -p)
717 set_attr(lp, attr_ruby, Nq.prev_ruby)
719 elseif has_attr(lpv, attr_ruby_maxprep) < 0 then -- auto
720 if Nq.char == 'parbdd' then
721 local p = round((ltjs.table_current_stack[RIPRE-1] or 0)
722 *has_attr(lpv, attr_ruby))
724 if has_attr(lpv, attr_ruby_mode)%2 == 0 then -- intrusion 無効
727 set_attr(lpv, attr_ruby_maxprep, p)
729 set_attr(lpv, attr_ruby_maxprep, 0)
732 elseif has_attr(lpv, attr_ruby_maxprep) < 0 then -- auto
733 set_attr(lpv, attr_ruby_maxprep, 0)
738 luatexbase.add_to_callback("luatexja.jfmglue.whatsit_getinfo", whatsit_callback,
739 "luatexja.ruby.np_info", 1)
743 local RIPOST = luatexja.stack_table_index.RIPOST
744 local function whatsit_after_callback(s, Nq, Np)
745 if not s and getfield(Nq.nuc, 'user_id') == RUBY_PRE then
747 local last_glue = node_new(id_glue)
748 set_attr(last_glue, attr_icflag, 0)
749 insert_before(Nq.nuc, Np.first, last_glue)
751 next_cluster_array[Nq.nuc] = last_glue -- ルビ処理用のグルー
753 local nqnv = getfield(Nq.nuc, 'value')
754 local x = node_next(node_next(nqnv))
755 for i = 2, getfield(nqnv, 'value') do x = node_next(node_next(x)) end
756 Nq.last_char = luatexja.jfmglue.check_box_high(Nq, getlist(x), nil)
757 luatexja.jfmglue.after_hlist(Nq)
758 if Np and Np.id ~=id_pbox_w and type(Np.char)=='number' then
760 local rm = has_attr(nqnv, attr_ruby_mode)
761 if has_attr(nqnv, attr_ruby_maxpostp) < 0 then -- auto
762 local p = round((ltjs.table_current_stack[RIPOST + Np.char] or 0)
763 *has_attr(nqnv, attr_ruby))
764 if rm%2 == 0 then -- intrusion 無効
768 local q = has_attr(nqnv, attr_ruby_maxprep)
771 set_attr(nqnv, attr_ruby_maxprep, p)
774 set_attr(nqnv, attr_ruby_maxpostp, p)
776 Np.prev_ruby = has_attr(getfield(Nq.nuc, 'value'), attr_ruby_id)
777 -- 前のクラスタがルビであったことのフラグ
779 local nqnv = getfield(Nq.nuc, 'value')
780 if has_attr(nqnv, attr_ruby_maxpostp) < 0 then -- auto
781 set_attr(nqnv, attr_ruby_maxpostp, 0)
782 if has_attr(nqnv, attr_ruby_mode)%4 >= 2 then
783 set_attr(nqnv, attr_ruby_maxprep, 0)
792 luatexbase.add_to_callback("luatexja.jfmglue.whatsit_after", whatsit_after_callback,
793 "luatexja.ruby.np_info_after", 1)