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_id = luatexbase.attributes['ltj@kcat4'] -- uniq id
47 local attr_ruby = luatexbase.attributes['ltj@rubyattr']
48 -- 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
49 -- * (whatsit) では JAglue 処理時に,
50 -- 「2つ前のクラスタもルビ」 ==> そのルビクラスタの id
51 -- otherwise ==> unset
52 -- * (whatsit).value node ではルビ全角の値(sp単位)
53 -- * 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
54 -- * (whatsit).value に続く整形済み vbox たちでは post_intrusion の値
55 local cat_lp = luatexbase.catcodetables['latex-package']
57 local round, floor = tex.round, math.floor
58 local min, max = math.min, math.max
60 luatexja.userid_table.RUBY_PRE = luatexbase.newuserwhatsitid('ruby_pre', 'luatexja')
61 luatexja.userid_table.RUBY_POST = luatexbase.newuserwhatsitid('ruby_post', 'luatexja')
62 local RUBY_PRE = luatexja.userid_table.RUBY_PRE
63 local RUBY_POST = luatexja.userid_table.RUBY_POST
64 local PROCESSED_BEGIN_FLAG = luatexja.icflag_table.PROCESSED_BEGIN_FLAG
66 ----------------------------------------------------------------
68 ----------------------------------------------------------------
70 local getbox = node.direct.getbox
71 function luatexja.ruby.cpbox() return node_copy(getbox(0)) end
74 ----------------------------------------------------------------
76 ----------------------------------------------------------------
78 local function gauss(coef)
79 -- #coef 式,#coef 変数の連立1次方程式系を掃きだし法で解く.
85 coef[i], coef[j] = coef[j], coef[i]; break
93 for k = 1, deg+1 do coef[j][k] = coef[j][k] - e*coef[i][k]/d end
95 for k = 1, deg+1 do coef[i][k] = coef[i][k]/d end
101 local function solve_1(coef)
102 local a, b, c = coef[1][4], coef[2][4], coef[3][4]
103 coef[1][4], coef[2][4], coef[3][4] = c-b, a+b-c, c-a
107 local function solve_2(coef)
108 local a, b, c, d, e = coef[1][6], coef[2][6], coef[3][6], coef[4][6], coef[5][6]
109 coef[1][6], coef[2][6], coef[3][6], coef[4][6], coef[5][6]
110 = e-c, a+c-e, e-a-d, b+d-e, e-b
115 -- 実行回数 + ルビ中身 から uniq_id を作る関数
116 luatexja.ruby.old_break_info = {} -- public, 前 run 時の分割情報
117 local old_break_info = luatexja.ruby.old_break_info
119 function luatexja.ruby.read_old_break_info()
121 local fname = tex.jobname .. '.ltjruby'
122 local real_file = kpse.find_file(fname)
123 if real_file then dofile(real_file) end
124 cache_handle = io.open(fname, 'w')
126 cache_handle:write('local lrob=luatexja.ruby.old_break_info\n')
133 make_uniq_id = function (w)
134 exec_count = exec_count + 1
139 -- concatenation of boxes: reusing nodes
140 -- ルビ組版が行われている段落/hboxでの設定が使われる.
141 -- ルビ文字を格納しているボックスでの設定ではない!
142 local function get_attr_icflag(p)
143 return (has_attr(p, attr_icflag) or 0) % PROCESSED_BEGIN_FLAG
147 local node_prev = node.direct.getprev
148 function concat(f, b)
151 local h, nh = getlist(f), getlist(b)
152 if getid(nh)==id_whatsit and getsubtype(nh)==sid_user then
153 nh=node_next(nh); node_free(node_prev(nh))
155 set_attr(nh, attr_icflag,
156 get_attr_icflag(nh) + PROCESSED_BEGIN_FLAG)
157 setfield(node_tail(h), 'next', nh)
158 setfield(f, 'head', nil); node_free(f)
159 setfield(b, 'head', nil); node_free(b)
160 local g = luatexja.jfmglue.main(h,false)
161 return node.direct.hpack(g)
168 local h = node_new(id_hlist)
169 setfield(h, 'subtype', 0)
170 setfield(h, 'width', 0)
171 setfield(h, 'height', 0)
172 setfield(h, 'depth', 0)
173 setfield(h, 'glue_set', 0)
174 setfield(h, 'glue_order', 0)
175 setfield(h, 'head', nil)
181 local function expand_3bits(num)
182 local t = {}; local a = num
184 t[i] = a%8; a = floor(a/8)
188 ----------------------------------------------------------------
190 ----------------------------------------------------------------
192 -- box の中身のノードは再利用される
195 local FROM_JFM = luatexja.icflag_table.FROM_JFM
196 local PROCESSED = luatexja.icflag_table.PROCESSED
197 local KANJI_SKIP = luatexja.icflag_table.KANJI_SKIP
198 local KANJI_SKIP_JFM = luatexja.icflag_table.KANJI_SKIP_JFM
199 local XKANJI_SKIP = luatexja.icflag_table.XKANJI_SKIP
200 local XKANJI_SKIP_JFM= luatexja.icflag_table.XKANJI_SKIP_JFM
201 enlarge = function (box, new_width, pre, middle, post, prenw, postnw)
202 -- pre, middle, post: 伸縮比率
203 -- prenw, postnw: 前後の自然長 (sp)
204 local h = getlist(box);
205 local hh, hd = getfield(box, 'height'), getfield(box, 'depth')
208 local hic = has_attr(hx, attr_icflag) or 0
209 if (hic == KANJI_SKIP) or (hic == KANJI_SKIP_JFM)
210 or (hic == XKANJI_SKIP) or (hic == XKANJI_SKIP_JFM)
211 or ((hic<=FROM_JFM+63) and (hic>=FROM_JFM)) then
213 if getid(hx) == id_kern then
214 local k = node_new(id_glue)
215 setglue(k, getfield(hx, 'kern'), round(middle*65536), 0,
217 setfield(k, 'subtype', 0);
218 h = insert_after(h, hx, k);
219 h = node_remove(h, hx); node_free(hx); hx = k
221 setglue(hx, getfield(hx, 'width'), round(middle*65536), 0,
228 local k = node_new(id_glue);
229 setglue(k, prenw, round(pre*65536), 0, 2, 0)
230 h = insert_before(h, h, k);
232 local k = node_new(id_glue);
233 setglue(k, postnw, round(post*65536), 0, 2, 0)
234 insert_after(h, node_tail(h), k);
236 setfield(box, 'head', nil); node_free(box)
237 box = node.direct.hpack(h, new_width, 'exactly')
238 setfield(box, 'height', hh)
239 setfield(box, 'depth', hd)
245 ----------------------------------------------------------------
247 ----------------------------------------------------------------
249 -- rtlr: ルビ部分のボックスたち r1, r2, ...
250 -- rtlp: 親文字 のボックスたち p1, p2, ...
251 local function texiface_low(rst, rtlr, rtlp)
252 local w = node_new(id_whatsit, sid_user)
253 setfield(w, 'type', 110); setfield(w, 'user_id', RUBY_PRE)
254 local wv = node_new(id_whatsit, sid_user)
255 setfield(w, 'value', to_node(wv))
256 setfield(wv, 'type', 108)
257 setfield(wv, 'value', rst); rst.count = floor(#rtlr)
259 setfield(wv, 'user_id', RUBY_PRE) -- dummy
262 _, n = insert_after(wv, n, rtlr[i])
263 _, n = insert_after(wv, n, rtlp[i])
265 -- w.value: (whatsit) .. r1 .. p1 .. r2 .. p2
266 node.direct.write(w); return w,wv
270 function luatexja.ruby.texiface(rst, rtlr, rtlp)
271 if #rtlr ~= #rtlp then
272 for i=1, #rtlr do node_free(rtlr[i]) end
273 for i=1, #rtlp do node_free(rtlp[i]) end
274 ltjb.package_error('luatexja-ruby',
275 'Group count mismatch between the ruby and\n' ..
276 'the body (' .. #rtlr .. ' != ' .. #rtlp .. ').',
281 if getfield(rtlr[i], 'width') > getfield(rtlp[i], 'width') then
285 if f then -- モノルビ * n
286 local r,p = {true}, {true}
288 r[1] = rtlr[i]; p[1] = rtlp[i]; texiface_low(rst, r, p)
291 local w, wv = texiface_low(rst, rtlr, rtlp)
292 local id = make_uniq_id(w)
293 set_attr(wv, attr_ruby_id, id)
298 ----------------------------------------------------------------
300 ----------------------------------------------------------------
302 -- r, p の中身のノードは再利用される
303 local function enlarge_parent(r, p, tmp_tbl, no_begin, no_end)
304 -- r: ルビ部分の格納された box,p: 同,親文字
305 local rwidth = getfield(r, 'width')
306 local sumprot = rwidth - getfield(p, 'width') -- >0
307 local pre_intrusion, post_intrusion
308 local ppre, pmid, ppost = tmp_tbl.ppre, tmp_tbl.pmid, tmp_tbl.ppost
309 local mapre, mapost = tmp_tbl.mapre, tmp_tbl.mapost
310 local intmode = floor(tmp_tbl.mode/4)%4
311 if no_begin then mapre = mapre + tmp_tbl.before_jfmgk end
312 if no_end then mapost = mapost + tmp_tbl.after_jfmgk end
313 if (tmp_tbl.mode%4 >=2) and (tmp.pre<0) and (tmp.post<0) then
314 mapre = min(mapre,mapost); mapost = mapre
316 if intmode == 0 then -- とりあえず組んでから決める
317 p = enlarge(p, rwidth, ppre, pmid, ppost, 0, 0)
318 pre_intrusion = min(mapre, round(ppre*getfield(p, 'glue_set')*65536))
319 post_intrusion = min(mapost, round(ppost*getfield(p, 'glue_set')*65536))
320 elseif intmode == 1 then
321 pre_intrusion = min(mapre, sumprot);
322 post_intrusion = min(mapost, max(sumprot-pre_intrusion, 0))
323 p = enlarge(p, rwidth, ppre, pmid, ppost, pre_intrusion, post_intrusion)
324 elseif intmode == 2 then
325 post_intrusion = min(mapost, sumprot);
326 pre_intrusion = min(mapre, max(sumprot-post_intrusion, 0))
327 p = enlarge(p, rwidth, ppre, pmid, ppost, pre_intrusion, post_intrusion)
329 local n = min(mapre, mapost)*2
331 pre_intrusion = n/2; post_intrusion = n/2
333 pre_intrusion = floor(sumprot/2); post_intrusion = sumprot - pre_intrusion
335 p = enlarge(p, rwidth, ppre, pmid, ppost, pre_intrusion, post_intrusion)
336 pre_intrusion = min(mapre, pre_intrusion + round(ppre*getfield(p, 'glue_set')*65536))
337 post_intrusion = min(mapost, post_intrusion + round(ppost*getfield(p, 'glue_set')*65536))
339 setfield(r, 'shift', -pre_intrusion)
340 local rwidth = rwidth - pre_intrusion - post_intrusion
341 setfield(r, 'width', rwidth)
342 setfield(p, 'width', rwidth)
343 local ps = getlist(p)
344 setfield(ps, 'width', getfield(ps, 'width') - pre_intrusion)
345 local orig_post_intrusion = post_intrusion
346 if no_end then orig_post_intrusion = max(orig_post_intrusion - tmp_tbl.after_jfmgk, 0) end
347 return r, p, orig_post_intrusion
351 -- returned value: <new box>, <ruby width>, <post_intrusion>
353 local function new_ruby_box(r, p, tmp_tbl, no_begin, no_end)
354 local post_intrusion = 0
356 local ppre, pmid, ppost = tmp_tbl.ppre, tmp_tbl.pmid, tmp_tbl.ppost
357 local mapre, mapost = tmp_tbl.mapre, tmp_tbl.mapost
358 local rpre, rmid, rpost, rsmash
359 imode = floor(tmp_tbl.mode/0x100000); 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, tmp_tbl, no_begin, no_end)
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', tmp_tbl.intergap)
389 insert_after(r, r, a); insert_after(r, a, k);
390 insert_after(r, k, p); setfield(p, 'next', nil)
391 if tmp_tbl.baseheight >= 0 then setfield(p, 'height', tmp_tbl.baseheight) end
392 a = node.direct.vpack(r); setfield(a, 'shift', 0)
393 set_attr(a, attr_ruby, post_intrusion)
394 if rsmash or getfield(a, 'height')<getfield(p, 'height') then
395 local k = node_new(id_kern, 1)
396 setfield(k, 'kern', -getfield(a, 'height')+getfield(p, 'height'))
397 setfield(a, 'head', k); insert_before(r, r, k)
398 setfield(a, 'height', getfield(p, 'height'))
401 return a, getfield(r, 'width'), post_intrusion
405 -- High-level routine in pre_linebreak_filter
406 local post_intrusion_backup
407 local max_allow_pre, max_allow_post
410 -- 中付き熟語ルビ,cmp containers
411 -- 「文字の構成を考えた」やつはどうしよう
412 local function pre_low_cal_box(w, cmp)
416 -- kf[i] : container 1--i からなる行末形
417 -- kf[cmp+i] : container i--cmp からなる行頭形
419 local wv = getfield(w, 'value')
420 local rst = getfield(wv, 'value')
421 local mdt -- nt*: node temp
422 local coef = {} -- 連立一次方程式の拡大係数行列
423 local rtb = expand_3bits(rst.stretch)
425 -- node list 展開・行末形の計算
426 local nt, nta, ntb = wv, nil, nil -- nt*: node temp
427 rst.ppre, rst.pmid, rst.ppost = rtb[6], rtb[5], rtb[4]
428 rst.mapre, rst.mapost = max_allow_pre, 0
430 nt = node_next(nt); rb[i] = nt; nta = concat(nta, node_copy(nt))
431 nt = node_next(nt); pb[i] = nt; ntb = concat(ntb, node_copy(nt))
433 for j = 1, 2*i do coef[i][j] = 1 end
434 for j = 2*i+1, 2*cmp+1 do coef[i][j] = 0 end
435 kf[i], coef[i][2*cmp+2]
436 = new_ruby_box(node_copy(nta), node_copy(ntb), rst, true, false)
438 node_free(nta); node_free(ntb)
441 local nta, ntb = nil, nil
442 rst.ppre, rst.pmid, rst.ppost = rtb[9], rtb[8], rtb[7]
443 rst.mapre, rst.mapost = 0, max_allow_post
446 for j = 1, 2*i-1 do coef[cmp+i][j] = 0 end
447 for j = 2*i, 2*cmp+1 do coef[cmp+i][j] = 1 end
448 nta = concat(node_copy(rb[i]), nta); ntb = concat(node_copy(pb[i]), ntb)
449 kf[cmp+i], coef[cmp+i][2*cmp+2]
450 = new_ruby_box(node_copy(nta), node_copy(ntb), rst, false, true)
453 -- ここで,nta, ntb には全 container を連結した box が入っているので
456 for j = 1, 2*cmp+1 do coef[2*cmp+1][j] = 1 end
457 rst.ppre, rst.pmid, rst.ppost = rtb[3], rtb[2], rtb[1]
458 rst.mapre, rst.mapost = max_allow_pre, max_allow_post
459 kf[2*cmp+1], coef[2*cmp+1][2*cmp+2], post_intrusion_backup
460 = new_ruby_box(nta, ntb, rst, true, true)
462 -- w.value の node list 更新.
464 node.direct.flush_list(node_next(wv))
465 for i = 1, 2*cmp+1 do setfield(nt, 'next', kf[i]); nt = kf[i] end
467 if cmp==1 then solve_1(coef)
468 elseif cmp==2 then solve_2(coef)
470 gauss(coef) -- 掃きだし法で連立方程式形 coef を解く
477 local traverse_id = node.direct.traverse_id
478 function first_whatsit(n) -- n 以後で最初の whatsit
479 for h in traverse_id(id_whatsit, n) do
486 local next_cluster_array = {}
488 local function pre_low_app_node(head, w, cmp, coef, ht, dp)
490 local nt = node_new(id_glue)
491 setglue(nt, coef[1][2*cmp+2], 0, 0, 0, 0)
492 set_attr(nt, attr_ruby, 1); set_attr(w, attr_ruby, 2)
493 head = insert_before(head, w, nt)
497 local nta = node_new(id_rule);
498 setfield(nta, 'width', coef[i*2][2*cmp+2])
499 setfield(nta, 'height', ht); setfield(nta, 'depth', dp)
500 setfield(nta, 'subtype', 0)
501 insert_after(head, nt, nta)
502 set_attr(nta, attr_ruby, 2*i+1)
504 if i~=cmp or not next_cluster_array[w] then
505 nt = node_new(id_glue); insert_after(head, nta, nt)
507 nt = next_cluster_array[w]
509 setglue(nt, coef[i*2+1][2*cmp+2], 0, 0, 0, 0)
510 set_attr(nt, attr_ruby, 2*i+2)
512 tex.setattribute('global', attr_ruby, -0x7FFFFFFF)
513 setfield(w, 'user_id', RUBY_POST)
514 next_cluster_array[w]=nil
515 return head, first_whatsit(node_next(nt))
518 local function pre_high(ahead)
519 if not ahead then return ahead end
520 local head = to_direct(ahead)
521 post_intrusion_backup = 0
522 local n = first_whatsit(head)
524 if getsubtype(n) == sid_user and getfield(n, 'user_id') == RUBY_PRE then
525 local nv = getfield(n, 'value')
526 local rst = getfield(nv, 'value')
527 max_allow_pre = rst.pre 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 = rst.post or 0
542 max_margin = rst.maxmargin or 0
543 local coef = pre_low_cal_box(n, rst.count)
544 local s = node_tail(nv) --ルビ文字
545 head, n = pre_low_app_node(
546 head, n, rst.count, coef, getfield(s, 'height'), getfield(s, 'depth')
549 n = first_whatsit(node_next(n))
554 luatexbase.add_to_callback('pre_linebreak_filter', pre_high, 'ltj.ruby.pre', 100)
555 luatexbase.add_to_callback('hpack_filter', pre_high, 'ltj.ruby.pre', 100)
557 ----------------------------------------------------------------
559 ----------------------------------------------------------------
562 local function write_aux(wv, num)
563 local id = has_attr(wv, attr_ruby_id)
564 if id>0 and cache_handle then
566 'lrob[' .. tostring(id) .. ']=' .. num .. '\n')
570 post_lown = function (rs, rw, cmp, ch)
571 -- ch: the head of `current' hlist
572 if #rs ==0 or not rw then return ch end
573 local hn = has_attr(rs[1], attr_ruby)
574 local fn = has_attr(rs[#rs], attr_ruby)
575 local wv = getfield(rw, 'value')
578 local hn = node_tail(wv)
580 insert_after(ch, rs[1], hn)
581 set_attr(hn, attr_icflag, PROCESSED)
582 write_aux(wv, has_attr(hn, attr_ruby))-- 行中形
584 local deg, hn = (fn-1)/2, wv
585 for i = 1, deg do hn = node_next(hn) end;
587 setfield(hn, 'next', nil)
588 insert_after(ch, rs[1], hn)
589 set_attr(hn, attr_icflag, PROCESSED)
590 write_aux(wv, has_attr(hn, attr_ruby))
593 local deg, hn = max((hn-1)/2,2), wv
594 for i = 1, cmp+deg-1 do hn = node_next(hn) end
595 -- -1 is needed except the case hn = 3,
596 -- because a ending-line form is removed already from the list
597 node_remove(wv, hn); setfield(hn, 'next', nil)
598 insert_after(ch, rs[1], hn)
599 set_attr(hn, attr_icflag, PROCESSED)
600 if fn == 2*cmp-1 then
601 write_aux(wv, has_attr(hn, attr_ruby))
606 ch = node_remove(ch, ri); node_free(ri);
609 if fn >= 2*cmp+1 then node_free(rw) end
614 local function post_high_break(head)
615 local rs = {} -- rs: sequence of ruby_nodes,
616 local rw = nil -- rw: main whatsit
617 local cmp = -2 -- dummy
618 for h in node.direct.traverse_id(id_hlist, to_direct(head)) do
619 for i = 1, #rs do rs[i] = nil end
620 local ha = getlist(h)
622 local hai = getid(ha)
623 local i = ((hai == id_glue and getsubtype(ha)==0)
624 or (hai == id_rule and getsubtype(ha)==0)
625 or (hai == id_whatsit and getsubtype(ha)==sid_user
626 and getfield(ha, 'user_id', RUBY_POST)))
627 and has_attr(ha, attr_ruby) or 0
631 setfield(h, 'head', post_lown(rs, rw, cmp, getlist(h)))
632 for i = 2, #rs do rs[i] = nil end -- rs[1] is set by the next statement
633 rs[1], rw = ha, nil; ha = node_next(ha)
636 cmp = getfield(getfield(rw, 'value'), 'value').count
637 local hb, hc = node_remove(getlist(h), rw)
638 setfield(h, 'head', hb); ha = hc
640 rs[#rs+1] = ha; ha = node_next(ha)
643 setfield(h, 'head', post_lown(rs, rw, cmp, getlist(h)))
648 local function post_high_hbox(ahead)
649 local ha = to_direct(ahead); local head = ha
650 local rs = {}; -- rs: sequence of ruby_nodes,
651 local rw = nil; -- rw: main whatsit
654 local hai = getid(ha)
655 local i = ((hai == id_glue and getsubtype(ha)==0)
656 or (hai == id_rule and getsubtype(ha)==0)
657 or (hai == id_whatsit and getsubtype(ha)==sid_user
658 and getfield(ha, 'user_id', RUBY_POST)))
659 and has_attr(ha, attr_ruby) or 0
663 head = post_lown(rs, rw, cmp, head)
664 for i = 2, #rs do rs[i] = nil end -- rs[1] is set by the next statement
665 rs[1], rw = ha, nil; ha = node_next(ha)
668 cmp = getfield(getfield(rw, 'value'), 'value').count
669 head, ha = node_remove(head, rw)
671 rs[#rs+1] = ha; ha = node_next(ha)
674 return to_node(post_lown(rs, rw, cmp, head))
677 luatexbase.add_to_callback('post_linebreak_filter', post_high_break, 'ltj.ruby.post_break', 100)
678 luatexbase.add_to_callback('hpack_filter', post_high_hbox, 'ltj.ruby.post_hbox', 101)
681 ----------------------------------------------------------------
682 -- for jfmglue callbacks
683 ----------------------------------------------------------------
685 local RIPRE = luatexja.stack_table_index.RIPRE
686 local function whatsit_callback(Np, lp, Nq)
687 if Np.nuc then return Np
688 elseif getfield(lp, 'user_id') == RUBY_PRE then
689 Np.first, Np.nuc, Np.last = lp, lp, lp
690 local lpv = getfield(lp, 'value')
691 local rst = getfield(lpv, 'value')
692 local x = node_next(node_next(lpv))
693 Np.last_char = luatexja.jfmglue.check_box_high(Np, getlist(x), nil)
694 if Nq.id ~=id_pbox_w then
695 if type(Nq.char)=='number' then
697 if rst.pre < 0 then -- auto
698 local p = round((ltjs.table_current_stack[RIPRE + Nq.char] or 0)
700 if rst.mode%2 == 0 then -- intrusion 無効
706 set_attr(lp, attr_ruby, Nq.prev_ruby)
708 elseif rst.pre < 0 then -- auto
709 if Nq.char == 'parbdd' then
710 local p = round((ltjs.table_current_stack[RIPRE-1] or 0)
713 if rst.mode%2 == 0 then -- intrusion 無効
721 elseif rst.pre < 0 then -- auto
729 luatexbase.add_to_callback("luatexja.jfmglue.whatsit_getinfo", whatsit_callback,
730 "luatexja.ruby.np_info", 1)
734 local FROM_JFM = luatexja.icflag_table.FROM_JFM
735 local KANJI_SKIP = luatexja.icflag_table.KANJI_SKIP
736 local function add_gk(t, index, p)
737 local ic = get_attr_icflag(p)
738 if ic and (ic>FROM_JFM) and (ic<KANJI_SKIP) then ic = FROM_JFM end
739 if t.intrude_jfmgk[ic] then
740 if getid(p)==id_kern then t[index] = t[index] + getfield(p, 'kern')
741 else t[index] = t[index] + getfield(p, 'width') end
744 local RIPOST = luatexja.stack_table_index.RIPOST
745 local function whatsit_after_callback(s, Nq, Np)
746 if not s and getfield(Nq.nuc, 'user_id') == RUBY_PRE then
748 local last_glue = node_new(id_glue)
749 set_attr(last_glue, attr_icflag, 0)
750 insert_before(Nq.nuc, Np.first, last_glue)
752 next_cluster_array[Nq.nuc] = last_glue -- ルビ処理用のグルー
754 local nqnv = getfield(Nq.nuc, 'value')
755 local rst = getfield(nqnv, 'value')
757 if type(Nq.gk)=="table" then
758 for _,v in ipairs(Nq.gk) do add_gk(rst, 'before_jfmgk', v) end
759 else add_gk(rst, 'before_jfmgk', Nq.gk) end
761 local x = node_next(node_next(nqnv))
762 for i = 2, rst.count do x = node_next(node_next(x)) end
763 Nq.last_char = luatexja.jfmglue.check_box_high(Nq, getlist(x), nil)
764 luatexja.jfmglue.after_hlist(Nq)
765 if Np and Np.id ~=id_pbox_w and type(Np.char)=='number' then
767 if rst.post < 0 then -- auto
768 local p = round((ltjs.table_current_stack[RIPOST + Np.char] or 0)
770 if rst.mode%2 == 0 then -- intrusion 無効
775 Np.prev_ruby = has_attr(getfield(Nq.nuc, 'value'), attr_ruby_id)
776 -- 前のクラスタがルビであったことのフラグ
778 local nqnv = getfield(Nq.nuc, 'value')
779 local rst = getfield(nqnv, 'value')
780 if rst.post < 0 then -- auto
789 luatexbase.add_to_callback("luatexja.jfmglue.whatsit_after", whatsit_after_callback,
790 "luatexja.ruby.np_info_after", 1)
791 local function w (s, Nq, Np)
792 if not s and getfield(Nq.nuc, 'user_id') == RUBY_PRE then
793 local rst = getfield(getfield(Nq.nuc, 'value'), 'value')
795 if type(Np.gk)=="table" then
796 for _,v in ipairs(Np.gk) do add_gk(rst, 'after_jfmgk', v) end
797 else add_gk(rst, 'after_jfmgk', Np.gk) end
801 luatexbase.add_to_callback("luatexja.jfmglue.whatsit_last_minute", w,
802 "luatexja.ruby.np_info_last_minute", 1)