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
70 local PROCESSED_BEGIN_FLAG = luatexja.icflag_table.PROCESSED_BEGIN_FLAG
72 ----------------------------------------------------------------
74 ----------------------------------------------------------------
76 local getbox = node.direct.getbox
77 function luatexja.ruby.cpbox() return node_copy(getbox(0)) end
80 ----------------------------------------------------------------
82 ----------------------------------------------------------------
84 local function gauss(coef)
85 -- #coef 式,#coef 変数の連立1次方程式系を掃きだし法で解く.
91 coef[i], coef[j] = coef[j], coef[i]; break
99 for k = 1, deg+1 do coef[j][k] = coef[j][k] - e*coef[i][k]/d end
101 for k = 1, deg+1 do coef[i][k] = coef[i][k]/d end
107 local function solve_1(coef)
108 local a, b, c = coef[1][4], coef[2][4], coef[3][4]
109 coef[1][4], coef[2][4], coef[3][4] = c-b, a+b-c, c-a
113 local function solve_2(coef)
114 local a, b, c, d, e = coef[1][6], coef[2][6], coef[3][6], coef[4][6], coef[5][6]
115 coef[1][6], coef[2][6], coef[3][6], coef[4][6], coef[5][6]
116 = e-c, a+c-e, e-a-d, b+d-e, e-b
121 -- 実行回数 + ルビ中身 から uniq_id を作る関数
122 luatexja.ruby.old_break_info = {} -- public, 前 run 時の分割情報
123 local old_break_info = luatexja.ruby.old_break_info
125 function luatexja.ruby.read_old_break_info()
127 local fname = tex.jobname .. '.ltjruby'
128 local real_file = kpse.find_file(fname)
129 if real_file then dofile(real_file) end
130 cache_handle = io.open(fname, 'w')
136 make_uniq_id = function (w)
137 exec_count = exec_count + 1
142 -- concatenation of boxes: reusing nodes
143 -- ルビ組版が行われている段落/hboxでの設定が使われる.
144 -- ルビ文字を格納しているボックスでの設定ではない!
147 local node_prev = node.direct.getprev
148 local function get_attr_icflag(p)
149 return (has_attr(p, attr_icflag) or 0) % PROCESSED_BEGIN_FLAG
151 function concat(f, b)
154 local h, nh = getlist(f), getlist(b)
155 if getid(nh)==id_whatsit and getsubtype(nh)==sid_user then
156 nh=node_next(nh); node_free(node_prev(nh))
158 set_attr(nh, attr_icflag,
159 get_attr_icflag(nh) + PROCESSED_BEGIN_FLAG)
160 setfield(node_tail(h), 'next', nh)
161 setfield(f, 'head', nil); node_free(f)
162 setfield(b, 'head', nil); node_free(b)
163 local g = luatexja.jfmglue.main(h,false)
164 return node.direct.hpack(g)
171 local h = node_new(id_hlist)
172 setfield(h, 'subtype', 0)
173 setfield(h, 'width', 0)
174 setfield(h, 'height', 0)
175 setfield(h, 'depth', 0)
176 setfield(h, 'glue_set', 0)
177 setfield(h, 'glue_order', 0)
178 setfield(h, 'head', nil)
184 local function expand_3bits(num)
185 local t = {}; local a = num
187 t[i] = a%8; a = floor(a/8)
191 ----------------------------------------------------------------
193 ----------------------------------------------------------------
195 -- box の中身のノードは再利用される
198 local FROM_JFM = luatexja.icflag_table.FROM_JFM
199 local PROCESSED = luatexja.icflag_table.PROCESSED
200 local KANJI_SKIP = luatexja.icflag_table.KANJI_SKIP
201 local KANJI_SKIP_JFM = luatexja.icflag_table.KANJI_SKIP_JFM
202 local XKANJI_SKIP = luatexja.icflag_table.XKANJI_SKIP
203 local XKANJI_SKIP_JFM= luatexja.icflag_table.XKANJI_SKIP_JFM
204 enlarge = function (box, new_width, pre, middle, post, prenw, postnw)
205 -- pre, middle, post: 伸縮比率
206 -- prenw, postnw: 前後の自然長 (sp)
207 local h = getlist(box);
208 local hh, hd = getfield(box, 'height'), getfield(box, 'depth')
211 local hic = has_attr(hx, attr_icflag) or 0
212 if (hic == KANJI_SKIP) or (hic == KANJI_SKIP_JFM)
213 or (hic == XKANJI_SKIP) or (hic == XKANJI_SKIP_JFM)
214 or ((hic<=FROM_JFM+63) and (hic>=FROM_JFM)) then
216 if getid(hx) == id_kern then
217 local k = node_new(id_glue)
218 setglue(k, getfield(hx, 'kern'), round(middle*65536), 0,
220 setfield(k, 'subtype', 0);
221 h = insert_after(h, hx, k);
222 h = node_remove(h, hx); node_free(hx); hx = k
224 setglue(hx, getfield(hx, 'width'), round(middle*65536), 0,
231 local k = node_new(id_glue);
232 setglue(k, prenw, round(pre*65536), 0, 2, 0)
233 h = insert_before(h, h, k);
235 local k = node_new(id_glue);
236 setglue(k, postnw, round(post*65536), 0, 2, 0)
237 insert_after(h, node_tail(h), k);
239 setfield(box, 'head', nil); node_free(box)
240 box = node.direct.hpack(h, new_width, 'exactly')
241 setfield(box, 'height', hh)
242 setfield(box, 'depth', hd)
248 ----------------------------------------------------------------
250 ----------------------------------------------------------------
252 -- rtlr: ルビ部分のボックスたち r1, r2, ...
253 -- rtlp: 親文字 のボックスたち p1, p2, ...
254 local function texiface_low(rst, rtlr, rtlp)
255 local w = node_new(id_whatsit, sid_user)
256 setfield(w, 'type', 110); setfield(w, 'user_id', RUBY_PRE)
257 local wv = node_new(id_whatsit, sid_user)
258 setfield(w, 'value', to_node(wv))
259 setfield(wv, 'type', 100)
260 setfield(wv, 'value', floor(#rtlr))
261 setfield(wv, 'user_id', RUBY_PRE) -- dummy
262 set_attr(wv, attr_ruby, rst.rubyzw)
263 set_attr(wv, attr_ruby_maxmargin, rst.maxmargin)
264 set_attr(wv, attr_ruby_maxprep, rst.pre)
265 set_attr(wv, attr_ruby_maxpostp, rst.post)
266 set_attr(wv, attr_ruby_intergap, rst.intergap)
267 set_attr(wv, attr_ruby_stretch, rst.stretch)
268 set_attr(wv, attr_ruby_mode, rst.mode)
271 _, n = insert_after(wv, n, rtlr[i])
272 _, n = insert_after(wv, n, rtlp[i])
274 -- w.value: (whatsit) .. r1 .. p1 .. r2 .. p2
275 node.direct.write(w); return w,wv
279 function luatexja.ruby.texiface(rst, rtlr, rtlp)
280 if #rtlr ~= #rtlp then
281 for i=1, #rtlr do node_free(rtlr[i]) end
282 for i=1, #rtlp do node_free(rtlp[i]) end
283 ltjb.package_error('luatexja-ruby',
284 'Group count mismatch between the ruby and\n' ..
285 'the body (' .. #rtlr .. ' != ' .. #rtlp .. ').',
290 if getfield(rtlr[i], 'width') > getfield(rtlp[i], 'width') then
294 if f then -- モノルビ * n
295 local r,p = {true}, {true}
297 r[1] = rtlr[i]; p[1] = rtlp[i]; texiface_low(rst, r, p)
300 local w, wv = texiface_low(rst, rtlr, rtlp)
301 local id = make_uniq_id(w)
302 set_attr(wv, attr_ruby_id, id)
307 ----------------------------------------------------------------
309 ----------------------------------------------------------------
311 -- r, p の中身のノードは再利用される
312 local function enlarge_parent(r, p, ppre, pmid, ppost, mapre, mapost, intmode)
313 -- r: ルビ部分の格納された box,p: 同,親文字
314 local rwidth = getfield(r, 'width')
315 local sumprot = rwidth - getfield(p, 'width') -- >0
316 local pre_intrusion, post_intrusion
317 if intmode == 0 then -- とりあえず組んでから決める
318 p = enlarge(p, rwidth, ppre, pmid, ppost, 0, 0)
319 pre_intrusion = min(mapre, round(ppre*getfield(p, 'glue_set')*65536))
320 post_intrusion = min(mapost, round(ppost*getfield(p, 'glue_set')*65536))
321 elseif intmode == 1 then
322 pre_intrusion = min(mapre, sumprot);
323 post_intrusion = min(mapost, max(sumprot-pre_intrusion, 0))
324 p = enlarge(p, rwidth, ppre, pmid, ppost, pre_intrusion, post_intrusion)
325 elseif intmode == 2 then
326 post_intrusion = min(mapost, sumprot);
327 pre_intrusion = min(mapre, max(sumprot-post_intrusion, 0))
328 p = enlarge(p, rwidth, ppre, pmid, ppost, pre_intrusion, post_intrusion)
330 local n = min(mapre, mapost)*2
332 pre_intrusion = n/2; post_intrusion = n/2
334 pre_intrusion = floor(sumprot/2); post_intrusion = sumprot - pre_intrusion
336 p = enlarge(p, rwidth, ppre, pmid, ppost, pre_intrusion, post_intrusion)
337 pre_intrusion = min(mapre, pre_intrusion + round(ppre*getfield(p, 'glue_set')*65536))
338 post_intrusion = min(mapost, post_intrusion + round(ppost*getfield(p, 'glue_set')*65536))
340 setfield(r, 'shift', -pre_intrusion)
341 local rwidth = rwidth - pre_intrusion - post_intrusion
342 setfield(r, 'width', rwidth)
343 setfield(p, 'width', rwidth)
344 local ps = getlist(p)
345 setfield(ps, 'width', getfield(ps, 'width') - pre_intrusion)
346 return r, p, post_intrusion
350 -- returned value: <new box>, <ruby width>, <post_intrusion>
352 local function new_ruby_box(r, p, ppre, pmid, ppost,
353 mapre, mapost, imode, rgap)
354 local post_intrusion = 0
355 local intmode = imode%4
356 local rpre, rmid, rpost, rsmash
357 imode = floor(imode/262144); rsmash = (imode%2 ==1)
358 imode = floor(imode/2); rpost = imode%8;
359 imode = (imode-rpost)/8; rmid = imode%8;
360 imode = (imode-rmid)/8; rpre = imode%8
361 if getfield(r, 'width') > getfield(p, 'width') then -- change the width of p
362 r, p, post_intrusion = enlarge_parent(r, p, ppre, pmid, ppost, mapre, mapost, intmode)
363 elseif getfield(r, 'width') < getfield(p, 'width') then -- change the width of r
364 r = enlarge(r, getfield(p, 'width'), rpre, rmid, rpost, 0, 0)
366 local need_repack = false
367 -- margin が大きくなりすぎた時の処理
368 if round(rpre*getfield(r, 'glue_set')*65536) > max_margin then
369 local ps = getlist(r); need_repack = true
370 setfield(ps, 'width', max_margin)
371 setfield(ps, 'stretch', 1) -- 全く伸縮しないのも困る
373 if round(rpost*getfield(r, 'glue_set')*65536) > max_margin then
374 local ps = node_tail(getlist(r)); need_repack = true
375 setfield(ps, 'width', max_margin)
376 setfield(ps, 'stretch', 1) -- 全く伸縮しないのも困る
380 r = node.direct.hpack(getlist(r), getfield(r, 'width'), 'exactly')
381 setfield(rt, 'head', nil); node_free(rt);
384 local a, k = node_new(id_rule), node_new(id_kern, 1)
385 setfield(a, 'width', 0); setfield(a, 'height', 0)
386 setfield(a, 'depth', 0); setfield(k, 'kern', rgap)
387 insert_after(r, r, a); insert_after(r, a, k);
388 insert_after(r, k, p); setfield(p, 'next', nil)
389 a = node.direct.vpack(r); setfield(a, 'shift', 0)
390 set_attr(a, attr_ruby, post_intrusion)
391 if rsmash or getfield(a, 'height')<getfield(p, 'height') then
392 local k = node_new(id_kern, 1)
393 setfield(k, 'kern', -getfield(a, 'height')+getfield(p, 'height'))
394 setfield(a, 'head', k); insert_before(r, r, k)
395 setfield(a, 'height', getfield(p, 'height'))
398 return a, getfield(r, 'width'), post_intrusion
402 -- High-level routine in pre_linebreak_filter
403 local post_intrusion_backup
404 local max_allow_pre, max_allow_post
407 -- 中付き熟語ルビ,cmp containers
408 -- 「文字の構成を考えた」やつはどうしよう
409 local function pre_low_cal_box(w, cmp)
413 -- kf[i] : container 1--i からなる行末形
414 -- kf[cmp+i] : container i--cmp からなる行頭形
416 local wv = getfield(w, 'value')
417 local mdt -- nt*: node temp
418 local coef = {} -- 連立一次方程式の拡大係数行列
419 local rtb = expand_3bits(has_attr(wv, attr_ruby_stretch))
420 local rgap = has_attr(wv, attr_ruby_intergap)
421 local intmode = floor(has_attr(wv, attr_ruby_mode)/4)
423 -- node list 展開・行末形の計算
424 local nt, nta, ntb = wv, nil, nil -- nt*: node temp
426 nt = node_next(nt); rb[i] = nt; nta = concat(nta, node_copy(nt))
427 nt = node_next(nt); pb[i] = nt; ntb = concat(ntb, node_copy(nt))
429 for j = 1, 2*i do coef[i][j] = 1 end
430 for j = 2*i+1, 2*cmp+1 do coef[i][j] = 0 end
431 kf[i], coef[i][2*cmp+2]
432 = new_ruby_box(node_copy(nta), node_copy(ntb),
433 rtb[6], rtb[5], rtb[4], max_allow_pre, 0, intmode, rgap)
435 node_free(nta); node_free(ntb)
438 local nta, ntb = nil, nil
441 for j = 1, 2*i-1 do coef[cmp+i][j] = 0 end
442 for j = 2*i, 2*cmp+1 do coef[cmp+i][j] = 1 end
443 nta = concat(node_copy(rb[i]), nta); ntb = concat(node_copy(pb[i]), ntb)
444 kf[cmp+i], coef[cmp+i][2*cmp+2]
445 = new_ruby_box(node_copy(nta), node_copy(ntb),
446 rtb[9], rtb[8], rtb[7], 0, max_allow_post, intmode, rgap)
449 -- ここで,nta, ntb には全 container を連結した box が入っているので
452 for j = 1, 2*cmp+1 do coef[2*cmp+1][j] = 1 end
453 kf[2*cmp+1], coef[2*cmp+1][2*cmp+2], post_intrusion_backup
454 = new_ruby_box(nta, ntb, rtb[3], rtb[2], rtb[1],
455 max_allow_pre, max_allow_post, intmode, rgap)
457 -- w.value の node list 更新.
459 node.direct.flush_list(node_next(wv))
460 for i = 1, 2*cmp+1 do setfield(nt, 'next', kf[i]); nt = kf[i] end
462 if cmp==1 then solve_1(coef)
463 elseif cmp==2 then solve_2(coef)
465 gauss(coef) -- 掃きだし法で連立方程式形 coef を解く
472 local traverse_id = node.direct.traverse_id
473 function first_whatsit(n) -- n 以後で最初の whatsit
474 for h in traverse_id(id_whatsit, n) do
481 local next_cluster_array = {}
483 local function pre_low_app_node(head, w, cmp, coef, ht, dp)
485 local nt = node_new(id_glue)
486 setglue(nt, coef[1][2*cmp+2], 0, 0, 0, 0)
487 set_attr(nt, attr_ruby, 1); set_attr(w, attr_ruby, 2)
488 head = insert_before(head, w, nt)
492 local nta = node_new(id_rule);
493 setfield(nta, 'width', coef[i*2][2*cmp+2])
494 setfield(nta, 'height', ht); setfield(nta, 'depth', dp)
495 setfield(nta, 'subtype', 0)
496 insert_after(head, nt, nta)
497 set_attr(nta, attr_ruby, 2*i+1)
499 if i~=cmp or not next_cluster_array[w] then
500 nt = node_new(id_glue); insert_after(head, nta, nt)
502 nt = next_cluster_array[w]
504 setglue(nt, coef[i*2+1][2*cmp+2], 0, 0, 0, 0)
505 set_attr(nt, attr_ruby, 2*i+2)
507 tex.setattribute('global', attr_ruby, -0x7FFFFFFF)
508 setfield(w, 'user_id', RUBY_POST)
509 next_cluster_array[w]=nil
510 return head, first_whatsit(node_next(nt))
513 local function pre_high(ahead)
514 if not ahead then return ahead end
515 local head = to_direct(ahead)
516 post_intrusion_backup = 0
517 local n = first_whatsit(head)
519 if getsubtype(n) == sid_user and getfield(n, 'user_id') == RUBY_PRE then
520 local nv = getfield(n, 'value')
521 max_allow_pre = has_attr(nv, attr_ruby_maxprep) or 0
522 local atr = has_attr(n, attr_ruby) or 0
523 if max_allow_pre < 0 then
525 -- 直前のルビで intrusion がおこる可能性あり.
526 -- 前 run のデータが残っていればそれを使用,
527 -- そうでなければ行中形のデータを利用する
528 local op = old_break_info[atr] or post_intrusion_backup
529 max_allow_pre = max(0, -max_allow_pre - op)
531 max_allow_pre = -max_allow_pre
534 post_intrusion_backup = 0
535 max_allow_post = has_attr(nv, attr_ruby_maxpostp) or 0
536 max_margin = has_attr(nv, attr_ruby_maxmargin) or 0
537 local coef = pre_low_cal_box(n, getfield(nv, 'value'))
538 local s = node_tail(nv) --ルビ文字
539 head, n = pre_low_app_node(
540 head, n, getfield(nv, 'value'), coef,
541 getfield(s, 'height'), getfield(s, 'depth')
544 n = first_whatsit(node_next(n))
549 luatexbase.add_to_callback('pre_linebreak_filter', pre_high, 'ltj.ruby.pre', 100)
550 luatexbase.add_to_callback('hpack_filter', pre_high, 'ltj.ruby.pre', 100)
552 ----------------------------------------------------------------
554 ----------------------------------------------------------------
557 local function write_aux(wv, num)
558 local id = has_attr(wv, attr_ruby_id)
559 if id>0 and cache_handle then
561 'luatexja.ruby.old_break_info['
562 .. tostring(id) .. ']=' .. num
567 post_lown = function (rs, rw, cmp, ch)
568 -- ch: the head of `current' hlist
569 if #rs ==0 or not rw then return ch end
570 local hn = has_attr(rs[1], attr_ruby)
571 local fn = has_attr(rs[#rs], attr_ruby)
572 local wv = getfield(rw, 'value')
575 local hn = node_tail(wv)
577 insert_after(ch, rs[1], hn)
578 set_attr(hn, attr_icflag, PROCESSED)
579 write_aux(wv, has_attr(hn, attr_ruby))-- 行中形
581 local deg, hn = (fn-1)/2, wv
582 for i = 1, deg do hn = node_next(hn) end;
584 setfield(hn, 'next', nil)
585 insert_after(ch, rs[1], hn)
586 set_attr(hn, attr_icflag, PROCESSED)
587 write_aux(wv, has_attr(hn, attr_ruby))
590 local deg, hn = max((hn-1)/2,2), wv
591 for i = 1, cmp+deg-1 do hn = node_next(hn) end
592 -- -1 is needed except the case hn = 3,
593 -- because a ending-line form is removed already from the list
594 node_remove(wv, hn); setfield(hn, 'next', nil)
595 insert_after(ch, rs[1], hn)
596 set_attr(hn, attr_icflag, PROCESSED)
597 if fn == 2*cmp-1 then
598 write_aux(wv, has_attr(hn, attr_ruby))
603 ch = node_remove(ch, ri); node_free(ri);
606 if fn >= 2*cmp+1 then node_free(rw) end
611 local function post_high_break(head)
612 local rs = {} -- rs: sequence of ruby_nodes,
613 local rw = nil -- rw: main whatsit
614 local cmp = -2 -- dummy
615 for h in node.direct.traverse_id(id_hlist, to_direct(head)) do
616 for i = 1, #rs do rs[i] = nil end
617 local ha = getlist(h)
619 local hai = getid(ha)
620 local i = ((hai == id_glue and getsubtype(ha)==0)
621 or (hai == id_rule and getsubtype(ha)==0)
622 or (hai == id_whatsit and getsubtype(ha)==sid_user
623 and getfield(ha, 'user_id', RUBY_POST)))
624 and has_attr(ha, attr_ruby) or 0
628 setfield(h, 'head', post_lown(rs, rw, cmp, getlist(h)))
629 for i = 2, #rs do rs[i] = nil end -- rs[1] is set by the next statement
630 rs[1], rw = ha, nil; ha = node_next(ha)
633 cmp = getfield(getfield(rw, 'value'), 'value')
634 local hb, hc = node_remove(getlist(h), rw)
635 setfield(h, 'head', hb); ha = hc
637 rs[#rs+1] = ha; ha = node_next(ha)
640 setfield(h, 'head', post_lown(rs, rw, cmp, getlist(h)))
645 local function post_high_hbox(ahead)
646 local ha = to_direct(ahead); local head = ha
647 local rs = {}; -- rs: sequence of ruby_nodes,
648 local rw = nil; -- rw: main whatsit
651 local hai = getid(ha)
652 local i = ((hai == id_glue and getsubtype(ha)==0)
653 or (hai == id_rule and getsubtype(ha)==0)
654 or (hai == id_whatsit and getsubtype(ha)==sid_user
655 and getfield(ha, 'user_id', RUBY_POST)))
656 and has_attr(ha, attr_ruby) or 0
660 head = post_lown(rs, rw, cmp, head)
661 for i = 2, #rs do rs[i] = nil end -- rs[1] is set by the next statement
662 rs[1], rw = ha, nil; ha = node_next(ha)
665 cmp = getfield(getfield(rw, 'value'), 'value')
666 head, ha = node_remove(head, rw)
668 rs[#rs+1] = ha; ha = node_next(ha)
671 return to_node(post_lown(rs, rw, cmp, head))
674 luatexbase.add_to_callback('post_linebreak_filter', post_high_break, 'ltj.ruby.post_break', 100)
675 luatexbase.add_to_callback('hpack_filter', post_high_hbox, 'ltj.ruby.post_hbox', 101)
678 ----------------------------------------------------------------
679 -- for jfmglue callbacks
680 ----------------------------------------------------------------
682 local RIPRE = luatexja.stack_table_index.RIPRE
683 local function whatsit_callback(Np, lp, Nq)
684 if Np.nuc then return Np
685 elseif getfield(lp, 'user_id') == RUBY_PRE then
686 Np.first, Np.nuc, Np.last = lp, lp, lp
687 local lpv = getfield(lp, 'value')
688 local x = node_next(node_next(lpv))
689 Np.last_char = luatexja.jfmglue.check_box_high(Np, getlist(x), nil)
690 if Nq.id ~=id_pbox_w then
691 if type(Nq.char)=='number' then
693 if has_attr(lpv, attr_ruby_maxprep) < 0 then -- auto
694 local p = round((ltjs.table_current_stack[RIPRE + Nq.char] or 0)
695 *has_attr(lpv, attr_ruby))
696 if has_attr(lpv, attr_ruby_mode)%2 == 0 then -- intrusion 無効
699 set_attr(lpv, attr_ruby_maxprep, -p)
702 set_attr(lp, attr_ruby, Nq.prev_ruby)
704 elseif has_attr(lpv, attr_ruby_maxprep) < 0 then -- auto
705 if Nq.char == 'parbdd' then
706 local p = round((ltjs.table_current_stack[RIPRE-1] or 0)
707 *has_attr(lpv, attr_ruby))
709 if has_attr(lpv, attr_ruby_mode)%2 == 0 then -- intrusion 無効
712 set_attr(lpv, attr_ruby_maxprep, p)
714 set_attr(lpv, attr_ruby_maxprep, 0)
717 elseif has_attr(lpv, attr_ruby_maxprep) < 0 then -- auto
718 set_attr(lpv, attr_ruby_maxprep, 0)
725 luatexbase.add_to_callback("luatexja.jfmglue.whatsit_getinfo", whatsit_callback,
726 "luatexja.ruby.np_info", 1)
730 local RIPOST = luatexja.stack_table_index.RIPOST
731 local function whatsit_after_callback(s, Nq, Np)
732 if not s and getfield(Nq.nuc, 'user_id') == RUBY_PRE then
734 local last_glue = node_new(id_glue)
735 set_attr(last_glue, attr_icflag, 0)
736 insert_before(Nq.nuc, Np.first, last_glue)
738 next_cluster_array[Nq.nuc] = last_glue -- ルビ処理用のグルー
740 local nqnv = getfield(Nq.nuc, 'value')
741 local x = node_next(node_next(nqnv))
742 for i = 2, getfield(nqnv, 'value') do x = node_next(node_next(x)) end
743 Nq.last_char = luatexja.jfmglue.check_box_high(Nq, getlist(x), nil)
744 luatexja.jfmglue.after_hlist(Nq)
745 if Np and Np.id ~=id_pbox_w and type(Np.char)=='number' then
747 local rm = has_attr(nqnv, attr_ruby_mode)
748 if has_attr(nqnv, attr_ruby_maxpostp) < 0 then -- auto
749 local p = round((ltjs.table_current_stack[RIPOST + Np.char] or 0)
750 *has_attr(nqnv, attr_ruby))
751 if rm%2 == 0 then -- intrusion 無効
755 local q = has_attr(nqnv, attr_ruby_maxprep)
758 set_attr(nqnv, attr_ruby_maxprep, p)
761 set_attr(nqnv, attr_ruby_maxpostp, p)
763 Np.prev_ruby = has_attr(getfield(Nq.nuc, 'value'), attr_ruby_id)
764 -- 前のクラスタがルビであったことのフラグ
766 local nqnv = getfield(Nq.nuc, 'value')
767 if has_attr(nqnv, attr_ruby_maxpostp) < 0 then -- auto
768 set_attr(nqnv, attr_ruby_maxpostp, 0)
769 if has_attr(nqnv, attr_ruby_mode)%4 >= 2 then
770 set_attr(nqnv, attr_ruby_maxprep, 0)
779 luatexbase.add_to_callback("luatexja.jfmglue.whatsit_after", whatsit_after_callback,
780 "luatexja.ruby.np_info_after", 1)