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_baseheight= luatexbase.attributes['ltj@kcat6']
54 local attr_ruby = luatexbase.attributes['ltj@rubyattr']
55 -- 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
56 -- * (whatsit) では JAglue 処理時に,
57 -- 「2つ前のクラスタもルビ」 ==> そのルビクラスタの id
58 -- otherwise ==> unset
59 -- * (whatsit).value node ではルビ全角の値(sp単位)
60 -- * 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
61 -- * (whatsit).value に続く整形済み vbox たちでは post_intrusion の値
62 local cat_lp = luatexbase.catcodetables['latex-package']
64 local round, floor = tex.round, math.floor
65 local min, max = math.min, math.max
67 luatexja.userid_table.RUBY_PRE = luatexbase.newuserwhatsitid('ruby_pre', 'luatexja')
68 luatexja.userid_table.RUBY_POST = luatexbase.newuserwhatsitid('ruby_post', 'luatexja')
69 local RUBY_PRE = luatexja.userid_table.RUBY_PRE
70 local RUBY_POST = luatexja.userid_table.RUBY_POST
71 local PROCESSED_BEGIN_FLAG = luatexja.icflag_table.PROCESSED_BEGIN_FLAG
73 ----------------------------------------------------------------
75 ----------------------------------------------------------------
77 local getbox = node.direct.getbox
78 function luatexja.ruby.cpbox() return node_copy(getbox(0)) end
81 ----------------------------------------------------------------
83 ----------------------------------------------------------------
85 local function gauss(coef)
86 -- #coef 式,#coef 変数の連立1次方程式系を掃きだし法で解く.
92 coef[i], coef[j] = coef[j], coef[i]; break
100 for k = 1, deg+1 do coef[j][k] = coef[j][k] - e*coef[i][k]/d end
102 for k = 1, deg+1 do coef[i][k] = coef[i][k]/d end
108 local function solve_1(coef)
109 local a, b, c = coef[1][4], coef[2][4], coef[3][4]
110 coef[1][4], coef[2][4], coef[3][4] = c-b, a+b-c, c-a
114 local function solve_2(coef)
115 local a, b, c, d, e = coef[1][6], coef[2][6], coef[3][6], coef[4][6], coef[5][6]
116 coef[1][6], coef[2][6], coef[3][6], coef[4][6], coef[5][6]
117 = e-c, a+c-e, e-a-d, b+d-e, e-b
122 -- 実行回数 + ルビ中身 から uniq_id を作る関数
123 luatexja.ruby.old_break_info = {} -- public, 前 run 時の分割情報
124 local old_break_info = luatexja.ruby.old_break_info
126 function luatexja.ruby.read_old_break_info()
128 local fname = tex.jobname .. '.ltjruby'
129 local real_file = kpse.find_file(fname)
130 if real_file then dofile(real_file) end
131 cache_handle = io.open(fname, 'w')
137 make_uniq_id = function (w)
138 exec_count = exec_count + 1
143 -- concatenation of boxes: reusing nodes
144 -- ルビ組版が行われている段落/hboxでの設定が使われる.
145 -- ルビ文字を格納しているボックスでの設定ではない!
148 local node_prev = node.direct.getprev
149 local function get_attr_icflag(p)
150 return (has_attr(p, attr_icflag) or 0) % PROCESSED_BEGIN_FLAG
152 function concat(f, b)
155 local h, nh = getlist(f), getlist(b)
156 if getid(nh)==id_whatsit and getsubtype(nh)==sid_user then
157 nh=node_next(nh); node_free(node_prev(nh))
159 set_attr(nh, attr_icflag,
160 get_attr_icflag(nh) + PROCESSED_BEGIN_FLAG)
161 setfield(node_tail(h), 'next', nh)
162 setfield(f, 'head', nil); node_free(f)
163 setfield(b, 'head', nil); node_free(b)
164 local g = luatexja.jfmglue.main(h,false)
165 return node.direct.hpack(g)
172 local h = node_new(id_hlist)
173 setfield(h, 'subtype', 0)
174 setfield(h, 'width', 0)
175 setfield(h, 'height', 0)
176 setfield(h, 'depth', 0)
177 setfield(h, 'glue_set', 0)
178 setfield(h, 'glue_order', 0)
179 setfield(h, 'head', nil)
185 local function expand_3bits(num)
186 local t = {}; local a = num
188 t[i] = a%8; a = floor(a/8)
192 ----------------------------------------------------------------
194 ----------------------------------------------------------------
196 -- box の中身のノードは再利用される
199 local FROM_JFM = luatexja.icflag_table.FROM_JFM
200 local PROCESSED = luatexja.icflag_table.PROCESSED
201 local KANJI_SKIP = luatexja.icflag_table.KANJI_SKIP
202 local KANJI_SKIP_JFM = luatexja.icflag_table.KANJI_SKIP_JFM
203 local XKANJI_SKIP = luatexja.icflag_table.XKANJI_SKIP
204 local XKANJI_SKIP_JFM= luatexja.icflag_table.XKANJI_SKIP_JFM
205 enlarge = function (box, new_width, pre, middle, post, prenw, postnw)
206 -- pre, middle, post: 伸縮比率
207 -- prenw, postnw: 前後の自然長 (sp)
208 local h = getlist(box);
209 local hh, hd = getfield(box, 'height'), getfield(box, 'depth')
212 local hic = has_attr(hx, attr_icflag) or 0
213 if (hic == KANJI_SKIP) or (hic == KANJI_SKIP_JFM)
214 or (hic == XKANJI_SKIP) or (hic == XKANJI_SKIP_JFM)
215 or ((hic<=FROM_JFM+63) and (hic>=FROM_JFM)) then
217 if getid(hx) == id_kern then
218 local k = node_new(id_glue)
219 setglue(k, getfield(hx, 'kern'), round(middle*65536), 0,
221 setfield(k, 'subtype', 0);
222 h = insert_after(h, hx, k);
223 h = node_remove(h, hx); node_free(hx); hx = k
225 setglue(hx, getfield(hx, 'width'), round(middle*65536), 0,
232 local k = node_new(id_glue);
233 setglue(k, prenw, round(pre*65536), 0, 2, 0)
234 h = insert_before(h, h, k);
236 local k = node_new(id_glue);
237 setglue(k, postnw, round(post*65536), 0, 2, 0)
238 insert_after(h, node_tail(h), k);
240 setfield(box, 'head', nil); node_free(box)
241 box = node.direct.hpack(h, new_width, 'exactly')
242 setfield(box, 'height', hh)
243 setfield(box, 'depth', hd)
249 ----------------------------------------------------------------
251 ----------------------------------------------------------------
253 -- rtlr: ルビ部分のボックスたち r1, r2, ...
254 -- rtlp: 親文字 のボックスたち p1, p2, ...
255 local function texiface_low(rst, rtlr, rtlp)
256 local w = node_new(id_whatsit, sid_user)
257 setfield(w, 'type', 110); setfield(w, 'user_id', RUBY_PRE)
258 local wv = node_new(id_whatsit, sid_user)
259 setfield(w, 'value', to_node(wv))
260 setfield(wv, 'type', 100)
261 setfield(wv, 'value', floor(#rtlr))
262 setfield(wv, 'user_id', RUBY_PRE) -- dummy
263 set_attr(wv, attr_ruby, rst.rubyzw)
264 set_attr(wv, attr_ruby_maxmargin, rst.maxmargin)
265 set_attr(wv, attr_ruby_maxprep, rst.pre)
266 set_attr(wv, attr_ruby_maxpostp, rst.post)
267 set_attr(wv, attr_ruby_intergap, rst.intergap)
268 set_attr(wv, attr_ruby_baseheight, rst.baseheight)
269 set_attr(wv, attr_ruby_stretch, rst.stretch)
270 set_attr(wv, attr_ruby_mode, rst.mode)
273 _, n = insert_after(wv, n, rtlr[i])
274 _, n = insert_after(wv, n, rtlp[i])
276 -- w.value: (whatsit) .. r1 .. p1 .. r2 .. p2
277 node.direct.write(w); return w,wv
281 function luatexja.ruby.texiface(rst, rtlr, rtlp)
282 if #rtlr ~= #rtlp then
283 for i=1, #rtlr do node_free(rtlr[i]) end
284 for i=1, #rtlp do node_free(rtlp[i]) end
285 ltjb.package_error('luatexja-ruby',
286 'Group count mismatch between the ruby and\n' ..
287 'the body (' .. #rtlr .. ' != ' .. #rtlp .. ').',
292 if getfield(rtlr[i], 'width') > getfield(rtlp[i], 'width') then
296 if f then -- モノルビ * n
297 local r,p = {true}, {true}
299 r[1] = rtlr[i]; p[1] = rtlp[i]; texiface_low(rst, r, p)
302 local w, wv = texiface_low(rst, rtlr, rtlp)
303 local id = make_uniq_id(w)
304 set_attr(wv, attr_ruby_id, id)
309 ----------------------------------------------------------------
311 ----------------------------------------------------------------
313 -- r, p の中身のノードは再利用される
314 local function enlarge_parent(r, p, ppre, pmid, ppost, mapre, mapost, intmode)
315 -- r: ルビ部分の格納された box,p: 同,親文字
316 local rwidth = getfield(r, 'width')
317 local sumprot = rwidth - getfield(p, 'width') -- >0
318 local pre_intrusion, post_intrusion
319 if intmode == 0 then -- とりあえず組んでから決める
320 p = enlarge(p, rwidth, ppre, pmid, ppost, 0, 0)
321 pre_intrusion = min(mapre, round(ppre*getfield(p, 'glue_set')*65536))
322 post_intrusion = min(mapost, round(ppost*getfield(p, 'glue_set')*65536))
323 elseif intmode == 1 then
324 pre_intrusion = min(mapre, sumprot);
325 post_intrusion = min(mapost, max(sumprot-pre_intrusion, 0))
326 p = enlarge(p, rwidth, ppre, pmid, ppost, pre_intrusion, post_intrusion)
327 elseif intmode == 2 then
328 post_intrusion = min(mapost, sumprot);
329 pre_intrusion = min(mapre, max(sumprot-post_intrusion, 0))
330 p = enlarge(p, rwidth, ppre, pmid, ppost, pre_intrusion, post_intrusion)
332 local n = min(mapre, mapost)*2
334 pre_intrusion = n/2; post_intrusion = n/2
336 pre_intrusion = floor(sumprot/2); post_intrusion = sumprot - pre_intrusion
338 p = enlarge(p, rwidth, ppre, pmid, ppost, pre_intrusion, post_intrusion)
339 pre_intrusion = min(mapre, pre_intrusion + round(ppre*getfield(p, 'glue_set')*65536))
340 post_intrusion = min(mapost, post_intrusion + round(ppost*getfield(p, 'glue_set')*65536))
342 setfield(r, 'shift', -pre_intrusion)
343 local rwidth = rwidth - pre_intrusion - post_intrusion
344 setfield(r, 'width', rwidth)
345 setfield(p, 'width', rwidth)
346 local ps = getlist(p)
347 setfield(ps, 'width', getfield(ps, 'width') - pre_intrusion)
348 return r, p, post_intrusion
352 -- returned value: <new box>, <ruby width>, <post_intrusion>
354 local function new_ruby_box(r, p, ppre, pmid, ppost,
355 mapre, mapost, imode, rgap, bheight)
356 local post_intrusion = 0
357 local intmode = imode%4
358 local rpre, rmid, rpost, rsmash
359 imode = floor(imode/262144); rsmash = (imode%2 ==1)
360 imode = floor(imode/2); rpost = imode%8;
361 imode = (imode-rpost)/8; rmid = imode%8;
362 imode = (imode-rmid)/8; rpre = imode%8
363 if getfield(r, 'width') > getfield(p, 'width') then -- change the width of p
364 r, p, post_intrusion = enlarge_parent(r, p, ppre, pmid, ppost, mapre, mapost, intmode)
365 elseif getfield(r, 'width') < getfield(p, 'width') then -- change the width of r
366 r = enlarge(r, getfield(p, 'width'), rpre, rmid, rpost, 0, 0)
368 local need_repack = false
369 -- margin が大きくなりすぎた時の処理
370 if round(rpre*getfield(r, 'glue_set')*65536) > max_margin then
371 local ps = getlist(r); need_repack = true
372 setfield(ps, 'width', max_margin)
373 setfield(ps, 'stretch', 1) -- 全く伸縮しないのも困る
375 if round(rpost*getfield(r, 'glue_set')*65536) > max_margin then
376 local ps = node_tail(getlist(r)); need_repack = true
377 setfield(ps, 'width', max_margin)
378 setfield(ps, 'stretch', 1) -- 全く伸縮しないのも困る
382 r = node.direct.hpack(getlist(r), getfield(r, 'width'), 'exactly')
383 setfield(rt, 'head', nil); node_free(rt);
386 local a, k = node_new(id_rule), node_new(id_kern, 1)
387 setfield(a, 'width', 0); setfield(a, 'height', 0)
388 setfield(a, 'depth', 0); setfield(k, 'kern', rgap)
389 insert_after(r, r, a); insert_after(r, a, k);
390 insert_after(r, k, p); setfield(p, 'next', nil)
392 setfield(p, 'height', bheight)
394 a = node.direct.vpack(r); setfield(a, 'shift', 0)
395 set_attr(a, attr_ruby, post_intrusion)
396 if rsmash or getfield(a, 'height')<getfield(p, 'height') then
397 local k = node_new(id_kern, 1)
398 setfield(k, 'kern', -getfield(a, 'height')+getfield(p, 'height'))
399 setfield(a, 'head', k); insert_before(r, r, k)
400 setfield(a, 'height', getfield(p, 'height'))
403 return a, getfield(r, 'width'), post_intrusion
407 -- High-level routine in pre_linebreak_filter
408 local post_intrusion_backup
409 local max_allow_pre, max_allow_post
412 -- 中付き熟語ルビ,cmp containers
413 -- 「文字の構成を考えた」やつはどうしよう
414 local function pre_low_cal_box(w, cmp)
418 -- kf[i] : container 1--i からなる行末形
419 -- kf[cmp+i] : container i--cmp からなる行頭形
421 local wv = getfield(w, 'value')
422 local mdt -- nt*: node temp
423 local coef = {} -- 連立一次方程式の拡大係数行列
424 local rtb = expand_3bits(has_attr(wv, attr_ruby_stretch))
425 local rgap = has_attr(wv, attr_ruby_intergap)
426 local bheight = has_attr(wv, attr_ruby_baseheight)
427 local intmode = floor(has_attr(wv, attr_ruby_mode)/4)
429 -- node list 展開・行末形の計算
430 local nt, nta, ntb = wv, nil, nil -- nt*: node temp
432 nt = node_next(nt); rb[i] = nt; nta = concat(nta, node_copy(nt))
433 nt = node_next(nt); pb[i] = nt; ntb = concat(ntb, node_copy(nt))
435 for j = 1, 2*i do coef[i][j] = 1 end
436 for j = 2*i+1, 2*cmp+1 do coef[i][j] = 0 end
437 kf[i], coef[i][2*cmp+2]
438 = new_ruby_box(node_copy(nta), node_copy(ntb),
439 rtb[6], rtb[5], rtb[4], max_allow_pre, 0, intmode, rgap, bheight)
441 node_free(nta); node_free(ntb)
444 local nta, ntb = nil, nil
447 for j = 1, 2*i-1 do coef[cmp+i][j] = 0 end
448 for j = 2*i, 2*cmp+1 do coef[cmp+i][j] = 1 end
449 nta = concat(node_copy(rb[i]), nta); ntb = concat(node_copy(pb[i]), ntb)
450 kf[cmp+i], coef[cmp+i][2*cmp+2]
451 = new_ruby_box(node_copy(nta), node_copy(ntb),
452 rtb[9], rtb[8], rtb[7], 0, max_allow_post, intmode, rgap, bheight)
455 -- ここで,nta, ntb には全 container を連結した box が入っているので
458 for j = 1, 2*cmp+1 do coef[2*cmp+1][j] = 1 end
459 kf[2*cmp+1], coef[2*cmp+1][2*cmp+2], post_intrusion_backup
460 = new_ruby_box(nta, ntb, rtb[3], rtb[2], rtb[1],
461 max_allow_pre, max_allow_post, intmode, rgap, bheight)
463 -- w.value の node list 更新.
465 node.direct.flush_list(node_next(wv))
466 for i = 1, 2*cmp+1 do setfield(nt, 'next', kf[i]); nt = kf[i] end
468 if cmp==1 then solve_1(coef)
469 elseif cmp==2 then solve_2(coef)
471 gauss(coef) -- 掃きだし法で連立方程式形 coef を解く
478 local traverse_id = node.direct.traverse_id
479 function first_whatsit(n) -- n 以後で最初の whatsit
480 for h in traverse_id(id_whatsit, n) do
487 local next_cluster_array = {}
489 local function pre_low_app_node(head, w, cmp, coef, ht, dp)
491 local nt = node_new(id_glue)
492 setglue(nt, coef[1][2*cmp+2], 0, 0, 0, 0)
493 set_attr(nt, attr_ruby, 1); set_attr(w, attr_ruby, 2)
494 head = insert_before(head, w, nt)
498 local nta = node_new(id_rule);
499 setfield(nta, 'width', coef[i*2][2*cmp+2])
500 setfield(nta, 'height', ht); setfield(nta, 'depth', dp)
501 setfield(nta, 'subtype', 0)
502 insert_after(head, nt, nta)
503 set_attr(nta, attr_ruby, 2*i+1)
505 if i~=cmp or not next_cluster_array[w] then
506 nt = node_new(id_glue); insert_after(head, nta, nt)
508 nt = next_cluster_array[w]
510 setglue(nt, coef[i*2+1][2*cmp+2], 0, 0, 0, 0)
511 set_attr(nt, attr_ruby, 2*i+2)
513 tex.setattribute('global', attr_ruby, -0x7FFFFFFF)
514 setfield(w, 'user_id', RUBY_POST)
515 next_cluster_array[w]=nil
516 return head, first_whatsit(node_next(nt))
519 local function pre_high(ahead)
520 if not ahead then return ahead end
521 local head = to_direct(ahead)
522 post_intrusion_backup = 0
523 local n = first_whatsit(head)
525 if getsubtype(n) == sid_user and getfield(n, 'user_id') == RUBY_PRE then
526 local nv = getfield(n, 'value')
527 max_allow_pre = has_attr(nv, attr_ruby_maxprep) or 0
528 local atr = has_attr(n, attr_ruby) or 0
529 if max_allow_pre < 0 then
531 -- 直前のルビで intrusion がおこる可能性あり.
532 -- 前 run のデータが残っていればそれを使用,
533 -- そうでなければ行中形のデータを利用する
534 local op = old_break_info[atr] or post_intrusion_backup
535 max_allow_pre = max(0, -max_allow_pre - op)
537 max_allow_pre = -max_allow_pre
540 post_intrusion_backup = 0
541 max_allow_post = has_attr(nv, attr_ruby_maxpostp) or 0
542 max_margin = has_attr(nv, attr_ruby_maxmargin) or 0
543 local coef = pre_low_cal_box(n, getfield(nv, 'value'))
544 local s = node_tail(nv) --ルビ文字
545 head, n = pre_low_app_node(
546 head, n, getfield(nv, 'value'), coef,
547 getfield(s, 'height'), getfield(s, 'depth')
550 n = first_whatsit(node_next(n))
555 luatexbase.add_to_callback('pre_linebreak_filter', pre_high, 'ltj.ruby.pre', 100)
556 luatexbase.add_to_callback('hpack_filter', pre_high, 'ltj.ruby.pre', 100)
558 ----------------------------------------------------------------
560 ----------------------------------------------------------------
563 local function write_aux(wv, num)
564 local id = has_attr(wv, attr_ruby_id)
565 if id>0 and cache_handle then
567 'luatexja.ruby.old_break_info['
568 .. tostring(id) .. ']=' .. num
573 post_lown = function (rs, rw, cmp, ch)
574 -- ch: the head of `current' hlist
575 if #rs ==0 or not rw then return ch end
576 local hn = has_attr(rs[1], attr_ruby)
577 local fn = has_attr(rs[#rs], attr_ruby)
578 local wv = getfield(rw, 'value')
581 local hn = node_tail(wv)
583 insert_after(ch, rs[1], hn)
584 set_attr(hn, attr_icflag, PROCESSED)
585 write_aux(wv, has_attr(hn, attr_ruby))-- 行中形
587 local deg, hn = (fn-1)/2, wv
588 for i = 1, deg do hn = node_next(hn) end;
590 setfield(hn, 'next', nil)
591 insert_after(ch, rs[1], hn)
592 set_attr(hn, attr_icflag, PROCESSED)
593 write_aux(wv, has_attr(hn, attr_ruby))
596 local deg, hn = max((hn-1)/2,2), wv
597 for i = 1, cmp+deg-1 do hn = node_next(hn) end
598 -- -1 is needed except the case hn = 3,
599 -- because a ending-line form is removed already from the list
600 node_remove(wv, hn); setfield(hn, 'next', nil)
601 insert_after(ch, rs[1], hn)
602 set_attr(hn, attr_icflag, PROCESSED)
603 if fn == 2*cmp-1 then
604 write_aux(wv, has_attr(hn, attr_ruby))
609 ch = node_remove(ch, ri); node_free(ri);
612 if fn >= 2*cmp+1 then node_free(rw) end
617 local function post_high_break(head)
618 local rs = {} -- rs: sequence of ruby_nodes,
619 local rw = nil -- rw: main whatsit
620 local cmp = -2 -- dummy
621 for h in node.direct.traverse_id(id_hlist, to_direct(head)) do
622 for i = 1, #rs do rs[i] = nil end
623 local ha = getlist(h)
625 local hai = getid(ha)
626 local i = ((hai == id_glue and getsubtype(ha)==0)
627 or (hai == id_rule and getsubtype(ha)==0)
628 or (hai == id_whatsit and getsubtype(ha)==sid_user
629 and getfield(ha, 'user_id', RUBY_POST)))
630 and has_attr(ha, attr_ruby) or 0
634 setfield(h, 'head', post_lown(rs, rw, cmp, getlist(h)))
635 for i = 2, #rs do rs[i] = nil end -- rs[1] is set by the next statement
636 rs[1], rw = ha, nil; ha = node_next(ha)
639 cmp = getfield(getfield(rw, 'value'), 'value')
640 local hb, hc = node_remove(getlist(h), rw)
641 setfield(h, 'head', hb); ha = hc
643 rs[#rs+1] = ha; ha = node_next(ha)
646 setfield(h, 'head', post_lown(rs, rw, cmp, getlist(h)))
651 local function post_high_hbox(ahead)
652 local ha = to_direct(ahead); local head = ha
653 local rs = {}; -- rs: sequence of ruby_nodes,
654 local rw = nil; -- rw: main whatsit
657 local hai = getid(ha)
658 local i = ((hai == id_glue and getsubtype(ha)==0)
659 or (hai == id_rule and getsubtype(ha)==0)
660 or (hai == id_whatsit and getsubtype(ha)==sid_user
661 and getfield(ha, 'user_id', RUBY_POST)))
662 and has_attr(ha, attr_ruby) or 0
666 head = post_lown(rs, rw, cmp, head)
667 for i = 2, #rs do rs[i] = nil end -- rs[1] is set by the next statement
668 rs[1], rw = ha, nil; ha = node_next(ha)
671 cmp = getfield(getfield(rw, 'value'), 'value')
672 head, ha = node_remove(head, rw)
674 rs[#rs+1] = ha; ha = node_next(ha)
677 return to_node(post_lown(rs, rw, cmp, head))
680 luatexbase.add_to_callback('post_linebreak_filter', post_high_break, 'ltj.ruby.post_break', 100)
681 luatexbase.add_to_callback('hpack_filter', post_high_hbox, 'ltj.ruby.post_hbox', 101)
684 ----------------------------------------------------------------
685 -- for jfmglue callbacks
686 ----------------------------------------------------------------
688 local RIPRE = luatexja.stack_table_index.RIPRE
689 local function whatsit_callback(Np, lp, Nq)
690 if Np.nuc then return Np
691 elseif getfield(lp, 'user_id') == RUBY_PRE then
692 Np.first, Np.nuc, Np.last = lp, lp, lp
693 local lpv = getfield(lp, 'value')
694 local x = node_next(node_next(lpv))
695 Np.last_char = luatexja.jfmglue.check_box_high(Np, getlist(x), nil)
696 if Nq.id ~=id_pbox_w then
697 if type(Nq.char)=='number' then
699 if has_attr(lpv, attr_ruby_maxprep) < 0 then -- auto
700 local p = round((ltjs.table_current_stack[RIPRE + Nq.char] or 0)
701 *has_attr(lpv, attr_ruby))
702 if has_attr(lpv, attr_ruby_mode)%2 == 0 then -- intrusion 無効
705 set_attr(lpv, attr_ruby_maxprep, -p)
708 set_attr(lp, attr_ruby, Nq.prev_ruby)
710 elseif has_attr(lpv, attr_ruby_maxprep) < 0 then -- auto
711 if Nq.char == 'parbdd' then
712 local p = round((ltjs.table_current_stack[RIPRE-1] or 0)
713 *has_attr(lpv, attr_ruby))
715 if has_attr(lpv, attr_ruby_mode)%2 == 0 then -- intrusion 無効
718 set_attr(lpv, attr_ruby_maxprep, p)
720 set_attr(lpv, attr_ruby_maxprep, 0)
723 elseif has_attr(lpv, attr_ruby_maxprep) < 0 then -- auto
724 set_attr(lpv, attr_ruby_maxprep, 0)
731 luatexbase.add_to_callback("luatexja.jfmglue.whatsit_getinfo", whatsit_callback,
732 "luatexja.ruby.np_info", 1)
736 local RIPOST = luatexja.stack_table_index.RIPOST
737 local function whatsit_after_callback(s, Nq, Np)
738 if not s and getfield(Nq.nuc, 'user_id') == RUBY_PRE then
740 local last_glue = node_new(id_glue)
741 set_attr(last_glue, attr_icflag, 0)
742 insert_before(Nq.nuc, Np.first, last_glue)
744 next_cluster_array[Nq.nuc] = last_glue -- ルビ処理用のグルー
746 local nqnv = getfield(Nq.nuc, 'value')
747 local x = node_next(node_next(nqnv))
748 for i = 2, getfield(nqnv, 'value') do x = node_next(node_next(x)) end
749 Nq.last_char = luatexja.jfmglue.check_box_high(Nq, getlist(x), nil)
750 luatexja.jfmglue.after_hlist(Nq)
751 if Np and Np.id ~=id_pbox_w and type(Np.char)=='number' then
753 local rm = has_attr(nqnv, attr_ruby_mode)
754 if has_attr(nqnv, attr_ruby_maxpostp) < 0 then -- auto
755 local p = round((ltjs.table_current_stack[RIPOST + Np.char] or 0)
756 *has_attr(nqnv, attr_ruby))
757 if rm%2 == 0 then -- intrusion 無効
761 local q = has_attr(nqnv, attr_ruby_maxprep)
764 set_attr(nqnv, attr_ruby_maxprep, p)
767 set_attr(nqnv, attr_ruby_maxpostp, p)
769 Np.prev_ruby = has_attr(getfield(Nq.nuc, 'value'), attr_ruby_id)
770 -- 前のクラスタがルビであったことのフラグ
772 local nqnv = getfield(Nq.nuc, 'value')
773 if has_attr(nqnv, attr_ruby_maxpostp) < 0 then -- auto
774 set_attr(nqnv, attr_ruby_maxpostp, 0)
775 if has_attr(nqnv, attr_ruby_mode)%4 >= 2 then
776 set_attr(nqnv, attr_ruby_maxprep, 0)
785 luatexbase.add_to_callback("luatexja.jfmglue.whatsit_after", whatsit_after_callback,
786 "luatexja.ruby.np_info_after", 1)