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')
133 cache_handle:write('local lrob=luatexja.ruby.old_break_info\n')
140 make_uniq_id = function (w)
141 exec_count = exec_count + 1
146 -- concatenation of boxes: reusing nodes
147 -- ルビ組版が行われている段落/hboxでの設定が使われる.
148 -- ルビ文字を格納しているボックスでの設定ではない!
149 local function get_attr_icflag(p)
150 return (has_attr(p, attr_icflag) or 0) % PROCESSED_BEGIN_FLAG
154 local node_prev = node.direct.getprev
155 function concat(f, b)
158 local h, nh = getlist(f), getlist(b)
159 if getid(nh)==id_whatsit and getsubtype(nh)==sid_user then
160 nh=node_next(nh); node_free(node_prev(nh))
162 set_attr(nh, attr_icflag,
163 get_attr_icflag(nh) + PROCESSED_BEGIN_FLAG)
164 setfield(node_tail(h), 'next', nh)
165 setfield(f, 'head', nil); node_free(f)
166 setfield(b, 'head', nil); node_free(b)
167 local g = luatexja.jfmglue.main(h,false)
168 return node.direct.hpack(g)
175 local h = node_new(id_hlist)
176 setfield(h, 'subtype', 0)
177 setfield(h, 'width', 0)
178 setfield(h, 'height', 0)
179 setfield(h, 'depth', 0)
180 setfield(h, 'glue_set', 0)
181 setfield(h, 'glue_order', 0)
182 setfield(h, 'head', nil)
188 local function expand_3bits(num)
189 local t = {}; local a = num
191 t[i] = a%8; a = floor(a/8)
195 ----------------------------------------------------------------
197 ----------------------------------------------------------------
199 -- box の中身のノードは再利用される
202 local FROM_JFM = luatexja.icflag_table.FROM_JFM
203 local PROCESSED = luatexja.icflag_table.PROCESSED
204 local KANJI_SKIP = luatexja.icflag_table.KANJI_SKIP
205 local KANJI_SKIP_JFM = luatexja.icflag_table.KANJI_SKIP_JFM
206 local XKANJI_SKIP = luatexja.icflag_table.XKANJI_SKIP
207 local XKANJI_SKIP_JFM= luatexja.icflag_table.XKANJI_SKIP_JFM
208 enlarge = function (box, new_width, pre, middle, post, prenw, postnw)
209 -- pre, middle, post: 伸縮比率
210 -- prenw, postnw: 前後の自然長 (sp)
211 local h = getlist(box);
212 local hh, hd = getfield(box, 'height'), getfield(box, 'depth')
215 local hic = has_attr(hx, attr_icflag) or 0
216 if (hic == KANJI_SKIP) or (hic == KANJI_SKIP_JFM)
217 or (hic == XKANJI_SKIP) or (hic == XKANJI_SKIP_JFM)
218 or ((hic<=FROM_JFM+63) and (hic>=FROM_JFM)) then
220 if getid(hx) == id_kern then
221 local k = node_new(id_glue)
222 setglue(k, getfield(hx, 'kern'), round(middle*65536), 0,
224 setfield(k, 'subtype', 0);
225 h = insert_after(h, hx, k);
226 h = node_remove(h, hx); node_free(hx); hx = k
228 setglue(hx, getfield(hx, 'width'), round(middle*65536), 0,
235 local k = node_new(id_glue);
236 setglue(k, prenw, round(pre*65536), 0, 2, 0)
237 h = insert_before(h, h, k);
239 local k = node_new(id_glue);
240 setglue(k, postnw, round(post*65536), 0, 2, 0)
241 insert_after(h, node_tail(h), k);
243 setfield(box, 'head', nil); node_free(box)
244 box = node.direct.hpack(h, new_width, 'exactly')
245 setfield(box, 'height', hh)
246 setfield(box, 'depth', hd)
252 ----------------------------------------------------------------
254 ----------------------------------------------------------------
256 -- rtlr: ルビ部分のボックスたち r1, r2, ...
257 -- rtlp: 親文字 のボックスたち p1, p2, ...
258 local function texiface_low(rst, rtlr, rtlp)
259 local w = node_new(id_whatsit, sid_user)
260 setfield(w, 'type', 110); setfield(w, 'user_id', RUBY_PRE)
261 local wv = node_new(id_whatsit, sid_user)
262 setfield(w, 'value', to_node(wv))
263 setfield(wv, 'type', 100)
264 setfield(wv, 'value', floor(#rtlr))
265 setfield(wv, 'user_id', RUBY_PRE) -- dummy
266 set_attr(wv, attr_ruby, rst.rubyzw)
267 set_attr(wv, attr_ruby_maxmargin, rst.maxmargin)
268 set_attr(wv, attr_ruby_maxprep, rst.pre)
269 set_attr(wv, attr_ruby_maxpostp, rst.post)
270 set_attr(wv, attr_ruby_intergap, rst.intergap)
271 set_attr(wv, attr_ruby_baseheight, rst.baseheight)
272 set_attr(wv, attr_ruby_stretch, rst.stretch)
273 set_attr(wv, attr_ruby_mode, rst.mode)
276 _, n = insert_after(wv, n, rtlr[i])
277 _, n = insert_after(wv, n, rtlp[i])
279 -- w.value: (whatsit) .. r1 .. p1 .. r2 .. p2
280 node.direct.write(w); return w,wv
284 function luatexja.ruby.texiface(rst, rtlr, rtlp)
285 if #rtlr ~= #rtlp then
286 for i=1, #rtlr do node_free(rtlr[i]) end
287 for i=1, #rtlp do node_free(rtlp[i]) end
288 ltjb.package_error('luatexja-ruby',
289 'Group count mismatch between the ruby and\n' ..
290 'the body (' .. #rtlr .. ' != ' .. #rtlp .. ').',
295 if getfield(rtlr[i], 'width') > getfield(rtlp[i], 'width') then
299 if f then -- モノルビ * n
300 local r,p = {true}, {true}
302 r[1] = rtlr[i]; p[1] = rtlp[i]; texiface_low(rst, r, p)
305 local w, wv = texiface_low(rst, rtlr, rtlp)
306 local id = make_uniq_id(w)
307 set_attr(wv, attr_ruby_id, id)
312 ----------------------------------------------------------------
314 ----------------------------------------------------------------
316 -- r, p の中身のノードは再利用される
317 local function enlarge_parent(r, p, tmp_tbl, intmode)
318 -- r: ルビ部分の格納された box,p: 同,親文字
319 local rwidth = getfield(r, 'width')
320 local sumprot = rwidth - getfield(p, 'width') -- >0
321 local pre_intrusion, post_intrusion
322 local ppre, pmid, ppost = tmp_tbl.ppre, tmp_tbl.pmid, tmp_tbl.ppost
323 local mapre, mapost = tmp_tbl.mapre, tmp_tbl.mapost
324 if intmode == 0 then -- とりあえず組んでから決める
325 p = enlarge(p, rwidth, ppre, pmid, ppost, 0, 0)
326 pre_intrusion = min(mapre, round(ppre*getfield(p, 'glue_set')*65536))
327 post_intrusion = min(mapost, round(ppost*getfield(p, 'glue_set')*65536))
328 elseif intmode == 1 then
329 pre_intrusion = min(mapre, sumprot);
330 post_intrusion = min(mapost, max(sumprot-pre_intrusion, 0))
331 p = enlarge(p, rwidth, ppre, pmid, ppost, pre_intrusion, post_intrusion)
332 elseif intmode == 2 then
333 post_intrusion = min(mapost, sumprot);
334 pre_intrusion = min(mapre, max(sumprot-post_intrusion, 0))
335 p = enlarge(p, rwidth, ppre, pmid, ppost, pre_intrusion, post_intrusion)
337 local n = min(mapre, mapost)*2
339 pre_intrusion = n/2; post_intrusion = n/2
341 pre_intrusion = floor(sumprot/2); post_intrusion = sumprot - pre_intrusion
343 p = enlarge(p, rwidth, ppre, pmid, ppost, pre_intrusion, post_intrusion)
344 pre_intrusion = min(mapre, pre_intrusion + round(ppre*getfield(p, 'glue_set')*65536))
345 post_intrusion = min(mapost, post_intrusion + round(ppost*getfield(p, 'glue_set')*65536))
347 setfield(r, 'shift', -pre_intrusion)
348 local rwidth = rwidth - pre_intrusion - post_intrusion
349 setfield(r, 'width', rwidth)
350 setfield(p, 'width', rwidth)
351 local ps = getlist(p)
352 setfield(ps, 'width', getfield(ps, 'width') - pre_intrusion)
353 return r, p, post_intrusion
357 -- returned value: <new box>, <ruby width>, <post_intrusion>
359 local function new_ruby_box(r, p, tmp_tbl)
360 local post_intrusion = 0
361 local imode = tmp_tbl.imode
362 local ppre, pmid, ppost = tmp_tbl.ppre, tmp_tbl.pmid, tmp_tbl.ppost
363 local mapre, mapost = tmp_tbl.mapre, tmp_tbl.mapost
364 local rpre, rmid, rpost, rsmash
365 imode = floor(imode/262144); rsmash = (imode%2 ==1)
366 imode = floor(imode/2); rpost = imode%8;
367 imode = (imode-rpost)/8; rmid = imode%8;
368 imode = (imode-rmid)/8; rpre = imode%8
369 if getfield(r, 'width') > getfield(p, 'width') then -- change the width of p
370 r, p, post_intrusion = enlarge_parent(r, p, tmp_tbl, imode%4)
371 elseif getfield(r, 'width') < getfield(p, 'width') then -- change the width of r
372 r = enlarge(r, getfield(p, 'width'), rpre, rmid, rpost, 0, 0)
374 local need_repack = false
375 -- margin が大きくなりすぎた時の処理
376 if round(rpre*getfield(r, 'glue_set')*65536) > max_margin then
377 local ps = getlist(r); need_repack = true
378 setfield(ps, 'width', max_margin)
379 setfield(ps, 'stretch', 1) -- 全く伸縮しないのも困る
381 if round(rpost*getfield(r, 'glue_set')*65536) > max_margin then
382 local ps = node_tail(getlist(r)); need_repack = true
383 setfield(ps, 'width', max_margin)
384 setfield(ps, 'stretch', 1) -- 全く伸縮しないのも困る
388 r = node.direct.hpack(getlist(r), getfield(r, 'width'), 'exactly')
389 setfield(rt, 'head', nil); node_free(rt);
392 local a, k = node_new(id_rule), node_new(id_kern, 1)
393 setfield(a, 'width', 0); setfield(a, 'height', 0)
394 setfield(a, 'depth', 0); setfield(k, 'kern', tmp_tbl.rgap)
395 insert_after(r, r, a); insert_after(r, a, k);
396 insert_after(r, k, p); setfield(p, 'next', nil)
397 if tmp_tbl.bheight > 0 then setfield(p, 'height', tmp_tbl.bheight) end
398 a = node.direct.vpack(r); setfield(a, 'shift', 0)
399 set_attr(a, attr_ruby, post_intrusion)
400 if rsmash or getfield(a, 'height')<getfield(p, 'height') then
401 local k = node_new(id_kern, 1)
402 setfield(k, 'kern', -getfield(a, 'height')+getfield(p, 'height'))
403 setfield(a, 'head', k); insert_before(r, r, k)
404 setfield(a, 'height', getfield(p, 'height'))
407 return a, getfield(r, 'width'), post_intrusion
411 -- High-level routine in pre_linebreak_filter
412 local post_intrusion_backup
413 local max_allow_pre, max_allow_post
416 -- 中付き熟語ルビ,cmp containers
417 -- 「文字の構成を考えた」やつはどうしよう
418 local pre_low_cal_box
421 pre_low_cal_box = function (w, cmp)
425 -- kf[i] : container 1--i からなる行末形
426 -- kf[cmp+i] : container i--cmp からなる行頭形
428 local wv = getfield(w, 'value')
429 local mdt -- nt*: node temp
430 local coef = {} -- 連立一次方程式の拡大係数行列
431 local rtb = expand_3bits(has_attr(wv, attr_ruby_stretch))
432 tmp_tbl.rgap = has_attr(wv, attr_ruby_intergap)
433 tmp_tbl.imode = floor(has_attr(wv, attr_ruby_mode)/4)
434 tmp_tbl.bheight = has_attr(wv, attr_ruby_baseheight)
436 -- node list 展開・行末形の計算
437 local nt, nta, ntb = wv, nil, nil -- nt*: node temp
438 tmp_tbl.ppre, tmp_tbl.pmid, tmp_tbl.ppost = rtb[6], rtb[5], rtb[4]
439 tmp_tbl.mapre, tmp_tbl.mapost = max_allow_pre, 0
441 nt = node_next(nt); rb[i] = nt; nta = concat(nta, node_copy(nt))
442 nt = node_next(nt); pb[i] = nt; ntb = concat(ntb, node_copy(nt))
444 for j = 1, 2*i do coef[i][j] = 1 end
445 for j = 2*i+1, 2*cmp+1 do coef[i][j] = 0 end
446 kf[i], coef[i][2*cmp+2]
447 = new_ruby_box(node_copy(nta), node_copy(ntb), tmp_tbl)
449 node_free(nta); node_free(ntb)
452 local nta, ntb = nil, nil
453 tmp_tbl.ppre, tmp_tbl.pmid, tmp_tbl.ppost = rtb[9], rtb[8], rtb[7]
454 tmp_tbl.mapre, tmp_tbl.mapost = 0, max_allow_post
457 for j = 1, 2*i-1 do coef[cmp+i][j] = 0 end
458 for j = 2*i, 2*cmp+1 do coef[cmp+i][j] = 1 end
459 nta = concat(node_copy(rb[i]), nta); ntb = concat(node_copy(pb[i]), ntb)
460 kf[cmp+i], coef[cmp+i][2*cmp+2]
461 = new_ruby_box(node_copy(nta), node_copy(ntb), tmp_tbl)
464 -- ここで,nta, ntb には全 container を連結した box が入っているので
467 for j = 1, 2*cmp+1 do coef[2*cmp+1][j] = 1 end
468 tmp_tbl.ppre, tmp_tbl.pmid, tmp_tbl.ppost = rtb[3], rtb[2], rtb[1]
469 tmp_tbl.mapre, tmp_tbl.mapost = max_allow_pre, max_allow_post
470 kf[2*cmp+1], coef[2*cmp+1][2*cmp+2], post_intrusion_backup
471 = new_ruby_box(nta, ntb, tmp_tbl)
473 -- w.value の node list 更新.
475 node.direct.flush_list(node_next(wv))
476 for i = 1, 2*cmp+1 do setfield(nt, 'next', kf[i]); nt = kf[i] end
478 if cmp==1 then solve_1(coef)
479 elseif cmp==2 then solve_2(coef)
481 gauss(coef) -- 掃きだし法で連立方程式形 coef を解く
489 local traverse_id = node.direct.traverse_id
490 function first_whatsit(n) -- n 以後で最初の whatsit
491 for h in traverse_id(id_whatsit, n) do
498 local next_cluster_array = {}
500 local function pre_low_app_node(head, w, cmp, coef, ht, dp)
502 local nt = node_new(id_glue)
503 setglue(nt, coef[1][2*cmp+2], 0, 0, 0, 0)
504 set_attr(nt, attr_ruby, 1); set_attr(w, attr_ruby, 2)
505 head = insert_before(head, w, nt)
509 local nta = node_new(id_rule);
510 setfield(nta, 'width', coef[i*2][2*cmp+2])
511 setfield(nta, 'height', ht); setfield(nta, 'depth', dp)
512 setfield(nta, 'subtype', 0)
513 insert_after(head, nt, nta)
514 set_attr(nta, attr_ruby, 2*i+1)
516 if i~=cmp or not next_cluster_array[w] then
517 nt = node_new(id_glue); insert_after(head, nta, nt)
519 nt = next_cluster_array[w]
521 setglue(nt, coef[i*2+1][2*cmp+2], 0, 0, 0, 0)
522 set_attr(nt, attr_ruby, 2*i+2)
524 tex.setattribute('global', attr_ruby, -0x7FFFFFFF)
525 setfield(w, 'user_id', RUBY_POST)
526 next_cluster_array[w]=nil
527 return head, first_whatsit(node_next(nt))
530 local get_around_skip
532 local KANJI_SKIP = luatexja.icflag_table.KANJI_SKIP
533 local XKANJI_SKIP_JFM = luatexja.icflag_table.XKANJI_SKIP_JFM
534 local getprev = node.direct.getprev
535 local getnext = node.direct.getnext
536 get_around_skip = function(head, n)
538 luatexja.ext_show_node(node.direct.tonode(p), 'B> ', print)
539 if getid(p)==id_glue then
540 local pi = get_attr_icflag(p)
541 if pi>=KANJI_SKIP and pi<=XKANJI_SKIP_JFM then
542 print(n, 'before ' .. luatexja.print_scaled(getfield(p, 'width')))
546 luatexja.ext_show_node(node.direct.tonode(p), 'A> ', print)
547 if getid(p)==id_glue then
548 local pi = get_attr_icflag(p)
549 if pi>=KANJI_SKIP and pi<=XKANJI_SKIP_JFM then
550 print(n, 'after ' .. luatexja.print_scaled(getfield(p, 'width')))
556 local function pre_high(ahead)
557 if not ahead then return ahead end
558 local head = to_direct(ahead)
559 post_intrusion_backup = 0
560 local n = first_whatsit(head)
562 if getsubtype(n) == sid_user and getfield(n, 'user_id') == RUBY_PRE then
563 local around_skip = get_around_skip(head, n)
564 local nv = getfield(n, 'value')
565 max_allow_pre = has_attr(nv, attr_ruby_maxprep) or 0
566 local atr = has_attr(n, attr_ruby) or 0
567 if max_allow_pre < 0 then
569 -- 直前のルビで intrusion がおこる可能性あり.
570 -- 前 run のデータが残っていればそれを使用,
571 -- そうでなければ行中形のデータを利用する
572 local op = old_break_info[atr] or post_intrusion_backup
573 max_allow_pre = max(0, -max_allow_pre - op)
575 max_allow_pre = -max_allow_pre
578 post_intrusion_backup = 0
579 max_allow_post = has_attr(nv, attr_ruby_maxpostp) or 0
580 max_margin = has_attr(nv, attr_ruby_maxmargin) or 0
581 local coef = pre_low_cal_box(n, getfield(nv, 'value'))
582 local s = node_tail(nv) --ルビ文字
583 head, n = pre_low_app_node(
584 head, n, getfield(nv, 'value'), coef,
585 getfield(s, 'height'), getfield(s, 'depth')
588 n = first_whatsit(node_next(n))
593 luatexbase.add_to_callback('pre_linebreak_filter', pre_high, 'ltj.ruby.pre', 100)
594 luatexbase.add_to_callback('hpack_filter', pre_high, 'ltj.ruby.pre', 100)
596 ----------------------------------------------------------------
598 ----------------------------------------------------------------
601 local function write_aux(wv, num)
602 local id = has_attr(wv, attr_ruby_id)
603 if id>0 and cache_handle then
605 'lrob[' .. tostring(id) .. ']=' .. num .. '\n')
609 post_lown = function (rs, rw, cmp, ch)
610 -- ch: the head of `current' hlist
611 if #rs ==0 or not rw then return ch end
612 local hn = has_attr(rs[1], attr_ruby)
613 local fn = has_attr(rs[#rs], attr_ruby)
614 local wv = getfield(rw, 'value')
617 local hn = node_tail(wv)
619 insert_after(ch, rs[1], hn)
620 set_attr(hn, attr_icflag, PROCESSED)
621 write_aux(wv, has_attr(hn, attr_ruby))-- 行中形
623 local deg, hn = (fn-1)/2, wv
624 for i = 1, deg do hn = node_next(hn) end;
626 setfield(hn, 'next', nil)
627 insert_after(ch, rs[1], hn)
628 set_attr(hn, attr_icflag, PROCESSED)
629 write_aux(wv, has_attr(hn, attr_ruby))
632 local deg, hn = max((hn-1)/2,2), wv
633 for i = 1, cmp+deg-1 do hn = node_next(hn) end
634 -- -1 is needed except the case hn = 3,
635 -- because a ending-line form is removed already from the list
636 node_remove(wv, hn); setfield(hn, 'next', nil)
637 insert_after(ch, rs[1], hn)
638 set_attr(hn, attr_icflag, PROCESSED)
639 if fn == 2*cmp-1 then
640 write_aux(wv, has_attr(hn, attr_ruby))
645 ch = node_remove(ch, ri); node_free(ri);
648 if fn >= 2*cmp+1 then node_free(rw) end
653 local function post_high_break(head)
654 local rs = {} -- rs: sequence of ruby_nodes,
655 local rw = nil -- rw: main whatsit
656 local cmp = -2 -- dummy
657 for h in node.direct.traverse_id(id_hlist, to_direct(head)) do
658 for i = 1, #rs do rs[i] = nil end
659 local ha = getlist(h)
661 local hai = getid(ha)
662 local i = ((hai == id_glue and getsubtype(ha)==0)
663 or (hai == id_rule and getsubtype(ha)==0)
664 or (hai == id_whatsit and getsubtype(ha)==sid_user
665 and getfield(ha, 'user_id', RUBY_POST)))
666 and has_attr(ha, attr_ruby) or 0
670 setfield(h, 'head', post_lown(rs, rw, cmp, getlist(h)))
671 for i = 2, #rs do rs[i] = nil end -- rs[1] is set by the next statement
672 rs[1], rw = ha, nil; ha = node_next(ha)
675 cmp = getfield(getfield(rw, 'value'), 'value')
676 local hb, hc = node_remove(getlist(h), rw)
677 setfield(h, 'head', hb); ha = hc
679 rs[#rs+1] = ha; ha = node_next(ha)
682 setfield(h, 'head', post_lown(rs, rw, cmp, getlist(h)))
687 local function post_high_hbox(ahead)
688 local ha = to_direct(ahead); local head = ha
689 local rs = {}; -- rs: sequence of ruby_nodes,
690 local rw = nil; -- rw: main whatsit
693 local hai = getid(ha)
694 local i = ((hai == id_glue and getsubtype(ha)==0)
695 or (hai == id_rule and getsubtype(ha)==0)
696 or (hai == id_whatsit and getsubtype(ha)==sid_user
697 and getfield(ha, 'user_id', RUBY_POST)))
698 and has_attr(ha, attr_ruby) or 0
702 head = post_lown(rs, rw, cmp, head)
703 for i = 2, #rs do rs[i] = nil end -- rs[1] is set by the next statement
704 rs[1], rw = ha, nil; ha = node_next(ha)
707 cmp = getfield(getfield(rw, 'value'), 'value')
708 head, ha = node_remove(head, rw)
710 rs[#rs+1] = ha; ha = node_next(ha)
713 return to_node(post_lown(rs, rw, cmp, head))
716 luatexbase.add_to_callback('post_linebreak_filter', post_high_break, 'ltj.ruby.post_break', 100)
717 luatexbase.add_to_callback('hpack_filter', post_high_hbox, 'ltj.ruby.post_hbox', 101)
720 ----------------------------------------------------------------
721 -- for jfmglue callbacks
722 ----------------------------------------------------------------
724 local RIPRE = luatexja.stack_table_index.RIPRE
725 local function whatsit_callback(Np, lp, Nq)
726 if Np.nuc then return Np
727 elseif getfield(lp, 'user_id') == RUBY_PRE then
728 Np.first, Np.nuc, Np.last = lp, lp, lp
729 local lpv = getfield(lp, 'value')
730 local x = node_next(node_next(lpv))
731 Np.last_char = luatexja.jfmglue.check_box_high(Np, getlist(x), nil)
732 if Nq.id ~=id_pbox_w then
733 if type(Nq.char)=='number' then
735 if has_attr(lpv, attr_ruby_maxprep) < 0 then -- auto
736 local p = round((ltjs.table_current_stack[RIPRE + Nq.char] or 0)
737 *has_attr(lpv, attr_ruby))
738 if has_attr(lpv, attr_ruby_mode)%2 == 0 then -- intrusion 無効
741 set_attr(lpv, attr_ruby_maxprep, -p)
744 set_attr(lp, attr_ruby, Nq.prev_ruby)
746 elseif has_attr(lpv, attr_ruby_maxprep) < 0 then -- auto
747 if Nq.char == 'parbdd' then
748 local p = round((ltjs.table_current_stack[RIPRE-1] or 0)
749 *has_attr(lpv, attr_ruby))
751 if has_attr(lpv, attr_ruby_mode)%2 == 0 then -- intrusion 無効
754 set_attr(lpv, attr_ruby_maxprep, p)
756 set_attr(lpv, attr_ruby_maxprep, 0)
759 elseif has_attr(lpv, attr_ruby_maxprep) < 0 then -- auto
760 set_attr(lpv, attr_ruby_maxprep, 0)
767 luatexbase.add_to_callback("luatexja.jfmglue.whatsit_getinfo", whatsit_callback,
768 "luatexja.ruby.np_info", 1)
772 local RIPOST = luatexja.stack_table_index.RIPOST
773 local function whatsit_after_callback(s, Nq, Np)
774 if not s and getfield(Nq.nuc, 'user_id') == RUBY_PRE then
776 local last_glue = node_new(id_glue)
777 set_attr(last_glue, attr_icflag, 0)
778 insert_before(Nq.nuc, Np.first, last_glue)
780 next_cluster_array[Nq.nuc] = last_glue -- ルビ処理用のグルー
782 local nqnv = getfield(Nq.nuc, 'value')
783 local x = node_next(node_next(nqnv))
784 for i = 2, getfield(nqnv, 'value') do x = node_next(node_next(x)) end
785 Nq.last_char = luatexja.jfmglue.check_box_high(Nq, getlist(x), nil)
786 luatexja.jfmglue.after_hlist(Nq)
787 if Np and Np.id ~=id_pbox_w and type(Np.char)=='number' then
789 local rm = has_attr(nqnv, attr_ruby_mode)
790 if has_attr(nqnv, attr_ruby_maxpostp) < 0 then -- auto
791 local p = round((ltjs.table_current_stack[RIPOST + Np.char] or 0)
792 *has_attr(nqnv, attr_ruby))
793 if rm%2 == 0 then -- intrusion 無効
797 local q = has_attr(nqnv, attr_ruby_maxprep)
800 set_attr(nqnv, attr_ruby_maxprep, p)
803 set_attr(nqnv, attr_ruby_maxpostp, p)
805 Np.prev_ruby = has_attr(getfield(Nq.nuc, 'value'), attr_ruby_id)
806 -- 前のクラスタがルビであったことのフラグ
808 local nqnv = getfield(Nq.nuc, 'value')
809 if has_attr(nqnv, attr_ruby_maxpostp) < 0 then -- auto
810 set_attr(nqnv, attr_ruby_maxpostp, 0)
811 if has_attr(nqnv, attr_ruby_mode)%4 >= 2 then
812 set_attr(nqnv, attr_ruby_maxprep, 0)
821 luatexbase.add_to_callback("luatexja.jfmglue.whatsit_after", whatsit_after_callback,
822 "luatexja.ruby.np_info_after", 1)