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)
258 setfield(wv, 'user_id', RUBY_PRE) -- dummy
261 _, n = insert_after(wv, n, rtlr[i])
262 _, n = insert_after(wv, n, rtlp[i])
264 -- w.value: (whatsit) .. r1 .. p1 .. r2 .. p2
265 node.direct.write(w); return w,wv
269 function luatexja.ruby.texiface(rst, rtlr, rtlp)
270 if #rtlr ~= #rtlp then
271 for i=1, #rtlr do node_free(rtlr[i]) end
272 for i=1, #rtlp do node_free(rtlp[i]) end
273 ltjb.package_error('luatexja-ruby',
274 'Group count mismatch between the ruby and\n' ..
275 'the body (' .. #rtlr .. ' != ' .. #rtlp .. ').',
280 if getfield(rtlr[i], 'width') > getfield(rtlp[i], 'width') then
284 if f then -- モノルビ * n
285 local r,p = {true}, {true}
287 r[1] = rtlr[i]; p[1] = rtlp[i]; texiface_low(rst, r, p)
290 local w, wv = texiface_low(rst, rtlr, rtlp)
291 local id = make_uniq_id(w)
292 set_attr(wv, attr_ruby_id, id)
297 ----------------------------------------------------------------
299 ----------------------------------------------------------------
301 -- r, p の中身のノードは再利用される
302 local function enlarge_parent(r, p, tmp_tbl, no_begin, no_end)
303 -- r: ルビ部分の格納された box,p: 同,親文字
304 local rwidth = getfield(r, 'width')
305 local sumprot = rwidth - getfield(p, 'width') -- >0
306 local pre_intrusion, post_intrusion
307 local ppre, pmid, ppost = tmp_tbl.ppre, tmp_tbl.pmid, tmp_tbl.ppost
308 local mapre, mapost = tmp_tbl.mapre, tmp_tbl.mapost
309 local intmode = floor(tmp_tbl.mode/4)%4
310 if no_begin then mapre = mapre + tmp_tbl.before_jfmgk end
311 if no_end then mapost = mapost + tmp_tbl.after_jfmgk end
312 if (tmp_tbl.mode%4 >=2) and (tmp.pre<0) and (tmp.post<0) then
313 mapre = min(mapre,mapost); mapost = mapre
315 if intmode == 0 then -- とりあえず組んでから決める
316 p = enlarge(p, rwidth, ppre, pmid, ppost, 0, 0)
317 pre_intrusion = min(mapre, round(ppre*getfield(p, 'glue_set')*65536))
318 post_intrusion = min(mapost, round(ppost*getfield(p, 'glue_set')*65536))
319 elseif intmode == 1 then
320 pre_intrusion = min(mapre, sumprot);
321 post_intrusion = min(mapost, max(sumprot-pre_intrusion, 0))
322 p = enlarge(p, rwidth, ppre, pmid, ppost, pre_intrusion, post_intrusion)
323 elseif intmode == 2 then
324 post_intrusion = min(mapost, sumprot);
325 pre_intrusion = min(mapre, max(sumprot-post_intrusion, 0))
326 p = enlarge(p, rwidth, ppre, pmid, ppost, pre_intrusion, post_intrusion)
328 local n = min(mapre, mapost)*2
330 pre_intrusion = n/2; post_intrusion = n/2
332 pre_intrusion = floor(sumprot/2); post_intrusion = sumprot - pre_intrusion
334 p = enlarge(p, rwidth, ppre, pmid, ppost, pre_intrusion, post_intrusion)
335 pre_intrusion = min(mapre, pre_intrusion + round(ppre*getfield(p, 'glue_set')*65536))
336 post_intrusion = min(mapost, post_intrusion + round(ppost*getfield(p, 'glue_set')*65536))
338 setfield(r, 'shift', -pre_intrusion)
339 local rwidth = rwidth - pre_intrusion - post_intrusion
340 setfield(r, 'width', rwidth)
341 setfield(p, 'width', rwidth)
342 local ps = getlist(p)
343 setfield(ps, 'width', getfield(ps, 'width') - pre_intrusion)
344 local orig_post_intrusion = post_intrusion
345 if no_end then orig_post_intrusion = max(orig_post_intrusion - tmp_tbl.after_jfmgk, 0) end
346 return r, p, orig_post_intrusion
350 -- returned value: <new box>, <ruby width>, <post_intrusion>
352 local function new_ruby_box(r, p, tmp_tbl, no_begin, no_end)
353 local post_intrusion = 0
355 local ppre, pmid, ppost = tmp_tbl.ppre, tmp_tbl.pmid, tmp_tbl.ppost
356 local mapre, mapost = tmp_tbl.mapre, tmp_tbl.mapost
357 local rpre, rmid, rpost, rsmash
358 imode = floor(tmp_tbl.mode/0x100000); rsmash = (imode%2 ==1)
359 imode = floor(imode/2); rpost = imode%8;
360 imode = (imode-rpost)/8; rmid = imode%8;
361 imode = (imode-rmid)/8; rpre = imode%8
362 if getfield(r, 'width') > getfield(p, 'width') then -- change the width of p
363 r, p, post_intrusion = enlarge_parent(r, p, tmp_tbl, no_begin, no_end)
364 elseif getfield(r, 'width') < getfield(p, 'width') then -- change the width of r
365 r = enlarge(r, getfield(p, 'width'), rpre, rmid, rpost, 0, 0)
367 local need_repack = false
368 -- margin が大きくなりすぎた時の処理
369 if round(rpre*getfield(r, 'glue_set')*65536) > max_margin then
370 local ps = getlist(r); need_repack = true
371 setfield(ps, 'width', max_margin)
372 setfield(ps, 'stretch', 1) -- 全く伸縮しないのも困る
374 if round(rpost*getfield(r, 'glue_set')*65536) > max_margin then
375 local ps = node_tail(getlist(r)); need_repack = true
376 setfield(ps, 'width', max_margin)
377 setfield(ps, 'stretch', 1) -- 全く伸縮しないのも困る
381 r = node.direct.hpack(getlist(r), getfield(r, 'width'), 'exactly')
382 setfield(rt, 'head', nil); node_free(rt);
385 local a, k = node_new(id_rule), node_new(id_kern, 1)
386 setfield(a, 'width', 0); setfield(a, 'height', 0)
387 setfield(a, 'depth', 0); setfield(k, 'kern', tmp_tbl.intergap)
388 insert_after(r, r, a); insert_after(r, a, k);
389 insert_after(r, k, p); setfield(p, 'next', nil)
390 if tmp_tbl.baseheight >= 0 then setfield(p, 'height', tmp_tbl.baseheight) end
391 a = node.direct.vpack(r); setfield(a, 'shift', 0)
392 set_attr(a, attr_ruby, post_intrusion)
393 if rsmash or getfield(a, 'height')<getfield(p, 'height') then
394 local k = node_new(id_kern, 1)
395 setfield(k, 'kern', -getfield(a, 'height')+getfield(p, 'height'))
396 setfield(a, 'head', k); insert_before(r, r, k)
397 setfield(a, 'height', getfield(p, 'height'))
400 return a, getfield(r, 'width'), post_intrusion
404 -- High-level routine in pre_linebreak_filter
405 local post_intrusion_backup
406 local max_allow_pre, max_allow_post
409 -- 中付き熟語ルビ,cmp containers
410 -- 「文字の構成を考えた」やつはどうしよう
411 local function pre_low_cal_box(w, cmp)
415 -- kf[i] : container 1--i からなる行末形
416 -- kf[cmp+i] : container i--cmp からなる行頭形
418 local wv = getfield(w, 'value')
419 local rst = getfield(wv, 'value')
420 local mdt -- nt*: node temp
421 local coef = {} -- 連立一次方程式の拡大係数行列
422 local rtb = expand_3bits(rst.stretch)
424 -- node list 展開・行末形の計算
425 local nt, nta, ntb = wv, nil, nil -- nt*: node temp
426 rst.ppre, rst.pmid, rst.ppost = rtb[6], rtb[5], rtb[4]
427 rst.mapre, rst.mapost = max_allow_pre, 0
429 nt = node_next(nt); rb[i] = nt; nta = concat(nta, node_copy(nt))
430 nt = node_next(nt); pb[i] = nt; ntb = concat(ntb, node_copy(nt))
432 for j = 1, 2*i do coef[i][j] = 1 end
433 for j = 2*i+1, 2*cmp+1 do coef[i][j] = 0 end
434 kf[i], coef[i][2*cmp+2]
435 = new_ruby_box(node_copy(nta), node_copy(ntb), rst, true, false)
437 node_free(nta); node_free(ntb)
440 local nta, ntb = nil, nil
441 rst.ppre, rst.pmid, rst.ppost = rtb[9], rtb[8], rtb[7]
442 rst.mapre, rst.mapost = 0, max_allow_post
445 for j = 1, 2*i-1 do coef[cmp+i][j] = 0 end
446 for j = 2*i, 2*cmp+1 do coef[cmp+i][j] = 1 end
447 nta = concat(node_copy(rb[i]), nta); ntb = concat(node_copy(pb[i]), ntb)
448 kf[cmp+i], coef[cmp+i][2*cmp+2]
449 = new_ruby_box(node_copy(nta), node_copy(ntb), rst, false, true)
452 -- ここで,nta, ntb には全 container を連結した box が入っているので
455 for j = 1, 2*cmp+1 do coef[2*cmp+1][j] = 1 end
456 rst.ppre, rst.pmid, rst.ppost = rtb[3], rtb[2], rtb[1]
457 rst.mapre, rst.mapost = max_allow_pre, max_allow_post
458 kf[2*cmp+1], coef[2*cmp+1][2*cmp+2], post_intrusion_backup
459 = new_ruby_box(nta, ntb, rst, true, true)
461 -- w.value の node list 更新.
463 node.direct.flush_list(node_next(wv))
464 for i = 1, 2*cmp+1 do setfield(nt, 'next', kf[i]); nt = kf[i] end
466 if cmp==1 then solve_1(coef)
467 elseif cmp==2 then solve_2(coef)
469 gauss(coef) -- 掃きだし法で連立方程式形 coef を解く
476 local traverse_id = node.direct.traverse_id
477 function first_whatsit(n) -- n 以後で最初の whatsit
478 for h in traverse_id(id_whatsit, n) do
485 local next_cluster_array = {}
487 local function pre_low_app_node(head, w, cmp, coef, ht, dp)
489 local nt = node_new(id_glue)
490 setglue(nt, coef[1][2*cmp+2], 0, 0, 0, 0)
491 set_attr(nt, attr_ruby, 1); set_attr(w, attr_ruby, 2)
492 head = insert_before(head, w, nt)
496 local nta = node_new(id_rule);
497 setfield(nta, 'width', coef[i*2][2*cmp+2])
498 setfield(nta, 'height', ht); setfield(nta, 'depth', dp)
499 setfield(nta, 'subtype', 0)
500 insert_after(head, nt, nta)
501 set_attr(nta, attr_ruby, 2*i+1)
503 if i~=cmp or not next_cluster_array[w] then
504 nt = node_new(id_glue); insert_after(head, nta, nt)
506 nt = next_cluster_array[w]
508 setglue(nt, coef[i*2+1][2*cmp+2], 0, 0, 0, 0)
509 set_attr(nt, attr_ruby, 2*i+2)
511 tex.setattribute('global', attr_ruby, -0x7FFFFFFF)
512 setfield(w, 'user_id', RUBY_POST)
513 next_cluster_array[w]=nil
514 return head, first_whatsit(node_next(nt))
517 local function pre_high(ahead)
518 if not ahead then return ahead end
519 local head = to_direct(ahead)
520 post_intrusion_backup = 0
521 local n = first_whatsit(head)
523 if getsubtype(n) == sid_user and getfield(n, 'user_id') == RUBY_PRE then
524 local nv = getfield(n, 'value')
525 local rst = getfield(nv, 'value')
526 max_allow_pre = rst.pre or 0
527 local atr = has_attr(n, attr_ruby) or 0
528 if max_allow_pre < 0 then
530 -- 直前のルビで intrusion がおこる可能性あり.
531 -- 前 run のデータが残っていればそれを使用,
532 -- そうでなければ行中形のデータを利用する
533 local op = old_break_info[atr] or post_intrusion_backup
534 max_allow_pre = max(0, -max_allow_pre - op)
536 max_allow_pre = -max_allow_pre
539 post_intrusion_backup = 0
540 max_allow_post = rst.post or 0
541 max_margin = rst.maxmargin or 0
542 local coef = pre_low_cal_box(n, rst.count)
543 local s = node_tail(nv) --ルビ文字
544 head, n = pre_low_app_node(
545 head, n, rst.count, coef, getfield(s, 'height'), getfield(s, 'depth')
548 n = first_whatsit(node_next(n))
553 luatexbase.add_to_callback('pre_linebreak_filter', pre_high, 'ltj.ruby.pre', 100)
554 luatexbase.add_to_callback('hpack_filter', pre_high, 'ltj.ruby.pre', 100)
556 ----------------------------------------------------------------
558 ----------------------------------------------------------------
561 local function write_aux(wv, num)
562 local id = has_attr(wv, attr_ruby_id)
563 if id>0 and cache_handle then
565 'lrob[' .. tostring(id) .. ']=' .. num .. '\n')
569 post_lown = function (rs, rw, cmp, ch)
570 -- ch: the head of `current' hlist
571 if #rs ==0 or not rw then return ch end
572 local hn = has_attr(rs[1], attr_ruby)
573 local fn = has_attr(rs[#rs], attr_ruby)
574 local wv = getfield(rw, 'value')
577 local hn = node_tail(wv)
579 insert_after(ch, rs[1], hn)
580 set_attr(hn, attr_icflag, PROCESSED)
581 write_aux(wv, has_attr(hn, attr_ruby))-- 行中形
583 local deg, hn = (fn-1)/2, wv
584 for i = 1, deg do hn = node_next(hn) end;
586 setfield(hn, 'next', nil)
587 insert_after(ch, rs[1], hn)
588 set_attr(hn, attr_icflag, PROCESSED)
589 write_aux(wv, has_attr(hn, attr_ruby))
592 local deg, hn = max((hn-1)/2,2), wv
593 for i = 1, cmp+deg-1 do hn = node_next(hn) end
594 -- -1 is needed except the case hn = 3,
595 -- because a ending-line form is removed already from the list
596 node_remove(wv, hn); setfield(hn, 'next', nil)
597 insert_after(ch, rs[1], hn)
598 set_attr(hn, attr_icflag, PROCESSED)
599 if fn == 2*cmp-1 then
600 write_aux(wv, has_attr(hn, attr_ruby))
605 ch = node_remove(ch, ri); node_free(ri);
608 if fn >= 2*cmp+1 then node_free(rw) end
613 local function post_high_break(head)
614 local rs = {} -- rs: sequence of ruby_nodes,
615 local rw = nil -- rw: main whatsit
616 local cmp = -2 -- dummy
617 for h in node.direct.traverse_id(id_hlist, to_direct(head)) do
618 for i = 1, #rs do rs[i] = nil end
619 local ha = getlist(h)
621 local hai = getid(ha)
622 local i = ((hai == id_glue and getsubtype(ha)==0)
623 or (hai == id_rule and getsubtype(ha)==0)
624 or (hai == id_whatsit and getsubtype(ha)==sid_user
625 and getfield(ha, 'user_id', RUBY_POST)))
626 and has_attr(ha, attr_ruby) or 0
630 setfield(h, 'head', post_lown(rs, rw, cmp, getlist(h)))
631 for i = 2, #rs do rs[i] = nil end -- rs[1] is set by the next statement
632 rs[1], rw = ha, nil; ha = node_next(ha)
635 cmp = getfield(getfield(rw, 'value'), 'value').count
636 local hb, hc = node_remove(getlist(h), rw)
637 setfield(h, 'head', hb); ha = hc
639 rs[#rs+1] = ha; ha = node_next(ha)
642 setfield(h, 'head', post_lown(rs, rw, cmp, getlist(h)))
647 local function post_high_hbox(ahead)
648 local ha = to_direct(ahead); local head = ha
649 local rs = {}; -- rs: sequence of ruby_nodes,
650 local rw = nil; -- rw: main whatsit
653 local hai = getid(ha)
654 local i = ((hai == id_glue and getsubtype(ha)==0)
655 or (hai == id_rule and getsubtype(ha)==0)
656 or (hai == id_whatsit and getsubtype(ha)==sid_user
657 and getfield(ha, 'user_id', RUBY_POST)))
658 and has_attr(ha, attr_ruby) or 0
662 head = post_lown(rs, rw, cmp, head)
663 for i = 2, #rs do rs[i] = nil end -- rs[1] is set by the next statement
664 rs[1], rw = ha, nil; ha = node_next(ha)
667 cmp = getfield(getfield(rw, 'value'), 'value').count
668 head, ha = node_remove(head, rw)
670 rs[#rs+1] = ha; ha = node_next(ha)
673 return to_node(post_lown(rs, rw, cmp, head))
676 luatexbase.add_to_callback('post_linebreak_filter', post_high_break, 'ltj.ruby.post_break', 100)
677 luatexbase.add_to_callback('hpack_filter', post_high_hbox, 'ltj.ruby.post_hbox', 101)
680 ----------------------------------------------------------------
681 -- for jfmglue callbacks
682 ----------------------------------------------------------------
684 local RIPRE = luatexja.stack_table_index.RIPRE
685 local function whatsit_callback(Np, lp, Nq)
686 if Np.nuc then return Np
687 elseif getfield(lp, 'user_id') == RUBY_PRE then
688 Np.first, Np.nuc, Np.last = lp, lp, lp
689 local lpv = getfield(lp, 'value')
690 local rst = getfield(lpv, 'value')
691 local x = node_next(node_next(lpv))
692 Np.last_char = luatexja.jfmglue.check_box_high(Np, getlist(x), nil)
693 if Nq.id ~=id_pbox_w then
694 if type(Nq.char)=='number' then
696 if rst.pre < 0 then -- auto
697 local p = round((ltjs.table_current_stack[RIPRE + Nq.char] or 0)
699 if rst.mode%2 == 0 then -- intrusion 無効
705 set_attr(lp, attr_ruby, Nq.prev_ruby)
707 elseif rst.pre < 0 then -- auto
708 if Nq.char == 'parbdd' then
709 local p = round((ltjs.table_current_stack[RIPRE-1] or 0)
712 if rst.mode%2 == 0 then -- intrusion 無効
720 elseif rst.pre < 0 then -- auto
728 luatexbase.add_to_callback("luatexja.jfmglue.whatsit_getinfo", whatsit_callback,
729 "luatexja.ruby.np_info", 1)
733 local FROM_JFM = luatexja.icflag_table.FROM_JFM
734 local KANJI_SKIP = luatexja.icflag_table.KANJI_SKIP
735 local function add_gk(t, index, p)
736 local ic = get_attr_icflag(p)
737 if ic and (ic>FROM_JFM) and (ic<KANJI_SKIP) then ic = FROM_JFM end
738 if t.intrude_jfmgk[ic] then
739 if getid(p)==id_kern then t[index] = t[index] + getfield(p, 'kern')
740 else t[index] = t[index] + getfield(p, 'width') end
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 rst = getfield(nqnv, 'value')
756 if type(Nq.gk)=="table" then
757 for _,v in ipairs(Nq.gk) do add_gk(rst, 'before_jfmgk', v) end
758 else add_gk(rst, 'before_jfmgk', Nq.gk) end
760 local x = node_next(node_next(nqnv))
761 for i = 2, rst.count do x = node_next(node_next(x)) end
762 Nq.last_char = luatexja.jfmglue.check_box_high(Nq, getlist(x), nil)
763 luatexja.jfmglue.after_hlist(Nq)
764 if Np and Np.id ~=id_pbox_w and type(Np.char)=='number' then
766 if rst.post < 0 then -- auto
767 local p = round((ltjs.table_current_stack[RIPOST + Np.char] or 0)
769 if rst.mode%2 == 0 then -- intrusion 無効
774 Np.prev_ruby = has_attr(getfield(Nq.nuc, 'value'), attr_ruby_id)
775 -- 前のクラスタがルビであったことのフラグ
777 local nqnv = getfield(Nq.nuc, 'value')
778 local rst = getfield(nqnv, 'value')
779 if rst.post < 0 then -- auto
788 luatexbase.add_to_callback("luatexja.jfmglue.whatsit_after", whatsit_after_callback,
789 "luatexja.ruby.np_info_after", 1)
790 local function w (s, Nq, Np)
791 if not s and getfield(Nq.nuc, 'user_id') == RUBY_PRE then
792 local rst = getfield(getfield(Nq.nuc, 'value'), 'value')
794 if type(Np.gk)=="table" then
795 for _,v in ipairs(Np.gk) do add_gk(rst, 'after_jfmgk', v) end
796 else add_gk(rst, 'after_jfmgk', Np.gk) end
800 luatexbase.add_to_callback("luatexja.jfmglue.whatsit_last_minute", w,
801 "luatexja.ruby.np_info_last_minute", 1)