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 attr_ruby_post_jfmgk = luatexbase.attributes['ltj@kcat3']
56 -- JAglue 処理時に,2つ前のクラスタもルビであれば,そのルビが直後の和文処理グルーへ
57 -- 正の進入をしたか否か(した:1,しなかった:0)
58 local cat_lp = luatexbase.catcodetables['latex-package']
60 local round, floor = tex.round, math.floor
61 local min, max = math.min, math.max
63 luatexja.userid_table.RUBY_PRE = luatexbase.newuserwhatsitid('ruby_pre', 'luatexja')
64 luatexja.userid_table.RUBY_POST = luatexbase.newuserwhatsitid('ruby_post', 'luatexja')
65 local RUBY_PRE = luatexja.userid_table.RUBY_PRE
66 local RUBY_POST = luatexja.userid_table.RUBY_POST
67 local PROCESSED_BEGIN_FLAG = luatexja.icflag_table.PROCESSED_BEGIN_FLAG
69 ----------------------------------------------------------------
71 ----------------------------------------------------------------
73 local getbox = node.direct.getbox
74 function luatexja.ruby.cpbox() return node_copy(getbox(0)) end
77 ----------------------------------------------------------------
79 ----------------------------------------------------------------
81 local function gauss(coef)
82 -- #coef 式,#coef 変数の連立1次方程式系を掃きだし法で解く.
88 coef[i], coef[j] = coef[j], coef[i]; break
96 for k = 1, deg+1 do coef[j][k] = coef[j][k] - e*coef[i][k]/d end
98 for k = 1, deg+1 do coef[i][k] = coef[i][k]/d end
104 local function solve_1(coef)
105 local a, b, c = coef[1][4], coef[2][4], coef[3][4]
106 coef[1][4], coef[2][4], coef[3][4] = c-b, a+b-c, c-a
110 local function solve_2(coef)
111 local a, b, c, d, e = coef[1][6], coef[2][6], coef[3][6], coef[4][6], coef[5][6]
112 coef[1][6], coef[2][6], coef[3][6], coef[4][6], coef[5][6]
113 = e-c, a+c-e, e-a-d, b+d-e, e-b
118 -- 実行回数 + ルビ中身 から uniq_id を作る関数
119 luatexja.ruby.old_break_info = {} -- public, 前 run 時の分割情報
120 local old_break_info = luatexja.ruby.old_break_info
122 function luatexja.ruby.read_old_break_info()
124 local fname = tex.jobname .. '.ltjruby'
125 local real_file = kpse.find_file(fname)
126 if real_file then dofile(real_file) end
127 cache_handle = io.open(fname, 'w')
129 cache_handle:write('local lrob=luatexja.ruby.old_break_info\n')
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!
145 local function get_attr_icflag(p)
146 return (has_attr(p, attr_icflag) or 0) % PROCESSED_BEGIN_FLAG
150 local node_prev = node.direct.getprev
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', 108)
260 setfield(wv, 'value', rst); rst.count = floor(#rtlr)
261 setfield(wv, 'user_id', RUBY_PRE) -- dummy
264 _, n = insert_after(wv, n, rtlr[i])
265 _, n = insert_after(wv, n, rtlp[i])
267 -- w.value: (whatsit) .. r1 .. p1 .. r2 .. p2
268 node.direct.write(w); return w,wv
272 function luatexja.ruby.texiface(rst, rtlr, rtlp)
273 if #rtlr ~= #rtlp then
274 for i=1, #rtlr do node_free(rtlr[i]) end
275 for i=1, #rtlp do node_free(rtlp[i]) end
276 ltjb.package_error('luatexja-ruby',
277 'Group count mismatch between the ruby and\n' ..
278 'the body (' .. #rtlr .. ' != ' .. #rtlp .. ').',
281 local f, eps = true, rst.eps
283 if getfield(rtlr[i], 'width') > getfield(rtlp[i], 'width') + eps then
287 if f then -- モノルビ * n
288 local r,p = {true}, {true}
290 r[1] = rtlr[i]; p[1] = rtlp[i]; texiface_low(rst, r, p)
293 local w, wv = texiface_low(rst, rtlr, rtlp)
294 local id = make_uniq_id(w)
295 set_attr(wv, attr_ruby_id, id)
300 ----------------------------------------------------------------
302 ----------------------------------------------------------------
304 -- r, p の中身のノードは再利用される
305 local function enlarge_parent(r, p, tmp_tbl, no_begin, no_end)
306 -- r: ルビ部分の格納された box,p: 同,親文字
307 local rwidth = getfield(r, 'width')
308 local sumprot = rwidth - getfield(p, 'width') -- >0
309 local pre_intrusion, post_intrusion
310 local ppre, pmid, ppost = tmp_tbl.ppre, tmp_tbl.pmid, tmp_tbl.ppost
311 local mapre, mapost = tmp_tbl.mapre, tmp_tbl.mapost
312 local intmode = floor(tmp_tbl.mode/4)%4
313 if no_begin then mapre = mapre + tmp_tbl.before_jfmgk end
314 if no_end then mapost = mapost + tmp_tbl.after_jfmgk end
315 if (tmp_tbl.mode%4 >=2) and (tmp_tbl.pre<0) and (tmp_tbl.post<0) then
316 mapre = min(mapre,mapost); mapost = mapre
318 if intmode == 0 then -- とりあえず組んでから決める
319 p = enlarge(p, rwidth, ppre, pmid, ppost, 0, 0)
320 pre_intrusion = min(mapre, round(ppre*getfield(p, 'glue_set')*65536))
321 post_intrusion = min(mapost, round(ppost*getfield(p, 'glue_set')*65536))
322 elseif intmode == 1 then
323 pre_intrusion = min(mapre, sumprot);
324 post_intrusion = min(mapost, max(sumprot-pre_intrusion, 0))
325 p = enlarge(p, rwidth, ppre, pmid, ppost, pre_intrusion, post_intrusion)
326 elseif intmode == 2 then
327 post_intrusion = min(mapost, sumprot);
328 pre_intrusion = min(mapre, max(sumprot-post_intrusion, 0))
329 p = enlarge(p, rwidth, ppre, pmid, ppost, pre_intrusion, post_intrusion)
331 local n = min(mapre, mapost)*2
333 pre_intrusion = n/2; post_intrusion = n/2
335 pre_intrusion = floor(sumprot/2); post_intrusion = sumprot - pre_intrusion
337 p = enlarge(p, rwidth, ppre, pmid, ppost, pre_intrusion, post_intrusion)
338 pre_intrusion = min(mapre, pre_intrusion + round(ppre*getfield(p, 'glue_set')*65536))
339 post_intrusion = min(mapost, post_intrusion + round(ppost*getfield(p, 'glue_set')*65536))
341 setfield(r, 'shift', -pre_intrusion)
342 local rwidth = rwidth - pre_intrusion - post_intrusion
343 setfield(r, 'width', rwidth)
344 setfield(p, 'width', rwidth)
345 local ps = getlist(p)
346 setfield(ps, 'width', getfield(ps, 'width') - pre_intrusion)
347 local orig_post_intrusion, post_jfmgk = post_intrusion, false
349 if orig_post_intrusion > tmp_tbl.after_jfmgk then
350 orig_post_intrusion = orig_post_intrusion - tmp_tbl.after_jfmgk
351 post_jfmgk = (tmp_tbl.after_jfmgk > 0)
353 orig_post_intrusion = 0
354 post_jfmgk = (post_intrusion > 0)
357 return r, p, orig_post_intrusion, post_jfmgk
361 -- returned value: <new box>, <ruby width>, <post_intrusion>
363 local function new_ruby_box(r, p, tmp_tbl, no_begin, no_end)
364 local post_intrusion, post_jfmgk = 0, false
366 local ppre, pmid, ppost = tmp_tbl.ppre, tmp_tbl.pmid, tmp_tbl.ppost
367 local mapre, mapost = tmp_tbl.mapre, tmp_tbl.mapost
368 local rpre, rmid, rpost, rsmash
369 imode = floor(tmp_tbl.mode/0x100000); rsmash = (imode%2 ==1)
370 imode = floor(imode/2); rpost = imode%8;
371 imode = (imode-rpost)/8; rmid = imode%8;
372 imode = (imode-rmid)/8; rpre = imode%8
373 if getfield(r, 'width') > getfield(p, 'width') then -- change the width of p
374 r, p, post_intrusion, post_jfmgk = enlarge_parent(r, p, tmp_tbl, no_begin, no_end)
375 elseif getfield(r, 'width') < getfield(p, 'width') then -- change the width of r
376 r = enlarge(r, getfield(p, 'width'), rpre, rmid, rpost, 0, 0)
378 local need_repack = false
379 -- margin が大きくなりすぎた時の処理
380 if round(rpre*getfield(r, 'glue_set')*65536) > max_margin then
381 local ps = getlist(r); need_repack = true
382 setfield(ps, 'width', max_margin)
383 setfield(ps, 'stretch', 1) -- 全く伸縮しないのも困る
385 if round(rpost*getfield(r, 'glue_set')*65536) > max_margin then
386 local ps = node_tail(getlist(r)); need_repack = true
387 setfield(ps, 'width', max_margin)
388 setfield(ps, 'stretch', 1) -- 全く伸縮しないのも困る
392 r = node.direct.hpack(getlist(r), getfield(r, 'width'), 'exactly')
393 setfield(rt, 'head', nil); node_free(rt);
396 local a, k = node_new(id_rule), node_new(id_kern, 1)
397 setfield(a, 'width', 0); setfield(a, 'height', 0)
398 setfield(a, 'depth', 0); setfield(k, 'kern', tmp_tbl.intergap)
399 insert_after(r, r, a); insert_after(r, a, k);
400 insert_after(r, k, p); setfield(p, 'next', nil)
401 if tmp_tbl.rubydepth >= 0 then setfield(r, 'depth', tmp_tbl.rubydepth) end
402 if tmp_tbl.baseheight >= 0 then setfield(p, 'height', tmp_tbl.baseheight) end
403 a = node.direct.vpack(r); setfield(a, 'shift', 0)
404 set_attr(a, attr_ruby, post_intrusion)
405 set_attr(a, attr_ruby_post_jfmgk, post_jfmgk and 1 or 0)
406 if rsmash or getfield(a, 'height')<getfield(p, 'height') then
407 local k = node_new(id_kern, 1)
408 setfield(k, 'kern', -getfield(a, 'height')+getfield(p, 'height'))
409 setfield(a, 'head', k); insert_before(r, r, k)
410 setfield(a, 'height', getfield(p, 'height'))
413 return a, getfield(r, 'width'), post_intrusion, post_jfmgk
417 -- High-level routine in pre_linebreak_filter
418 local post_intrusion_backup, post_jfmgk_backup
419 local max_allow_pre, max_allow_post
422 -- 中付き熟語ルビ,cmp containers
423 -- 「文字の構成を考えた」やつはどうしよう
424 local function pre_low_cal_box(w, cmp)
428 -- kf[i] : container 1--i からなる行末形
429 -- kf[cmp+i] : container i--cmp からなる行頭形
431 local wv = getfield(w, 'value')
432 local rst = getfield(wv, 'value')
433 local mdt -- nt*: node temp
434 local coef = {} -- 連立一次方程式の拡大係数行列
435 local rtb = expand_3bits(rst.stretch)
437 -- node list 展開・行末形の計算
438 local nt, nta, ntb = wv, nil, nil -- nt*: node temp
439 rst.ppre, rst.pmid, rst.ppost = rtb[6], rtb[5], rtb[4]
440 rst.mapre, rst.mapost = max_allow_pre, 0
442 nt = node_next(nt); rb[i] = nt; nta = concat(nta, node_copy(nt))
443 nt = node_next(nt); pb[i] = nt; ntb = concat(ntb, node_copy(nt))
445 for j = 1, 2*i do coef[i][j] = 1 end
446 for j = 2*i+1, 2*cmp+1 do coef[i][j] = 0 end
447 kf[i], coef[i][2*cmp+2]
448 = new_ruby_box(node_copy(nta), node_copy(ntb), rst, true, false)
450 node_free(nta); node_free(ntb)
453 local nta, ntb = nil, nil
454 rst.ppre, rst.pmid, rst.ppost = rtb[9], rtb[8], rtb[7]
455 rst.mapre, rst.mapost = 0, max_allow_post
458 for j = 1, 2*i-1 do coef[cmp+i][j] = 0 end
459 for j = 2*i, 2*cmp+1 do coef[cmp+i][j] = 1 end
460 nta = concat(node_copy(rb[i]), nta); ntb = concat(node_copy(pb[i]), ntb)
461 kf[cmp+i], coef[cmp+i][2*cmp+2]
462 = new_ruby_box(node_copy(nta), node_copy(ntb), rst, false, true)
465 -- ここで,nta, ntb には全 container を連結した box が入っているので
468 for j = 1, 2*cmp+1 do coef[2*cmp+1][j] = 1 end
469 rst.ppre, rst.pmid, rst.ppost = rtb[3], rtb[2], rtb[1]
470 rst.mapre, rst.mapost = max_allow_pre, max_allow_post
471 kf[2*cmp+1], coef[2*cmp+1][2*cmp+2], post_intrusion_backup, post_jfmgk_backup
472 = new_ruby_box(nta, ntb, rst, true, true)
474 -- w.value の node list 更新.
476 node.direct.flush_list(node_next(wv))
477 for i = 1, 2*cmp+1 do setfield(nt, 'next', kf[i]); nt = kf[i] end
479 if cmp==1 then solve_1(coef)
480 elseif cmp==2 then solve_2(coef)
482 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 function pre_high(ahead)
531 if not ahead then return ahead end
532 local head = to_direct(ahead)
533 post_intrusion_backup, post_jfmgk_backup = 0, false
534 local n = first_whatsit(head)
536 if getsubtype(n) == sid_user and getfield(n, 'user_id') == RUBY_PRE then
537 local nv = getfield(n, 'value')
538 local rst = getfield(nv, 'value')
539 max_allow_pre = rst.pre or 0
540 local atr = has_attr(n, attr_ruby) or 0
541 if max_allow_pre < 0 then
542 -- 直前のルビで intrusion がおこる可能性あり.
543 -- 前 run のデータが残っていればそれを使用,
544 -- そうでなければ行中形のデータを利用する
545 local op = (atr>0) and (old_break_info[atr] or post_intrusion_backup) or 0
546 max_allow_pre = max(0, -max_allow_pre - op)
548 if rst.exclude_pre_from_prev_ruby and atr>0 and old_break_info[-atr]
549 and (old_break_info[-atr]>0 or post_jfmgk_backup) then
550 -- 「直前のルビが JFM グルーに進入→現在のルビの前文字進入はなし」という状況
551 max_allow_pre = 0; rst.exclude_pre_from_prev_ruby=false
553 if rst.exclude_pre_jfmgk_from_prev_ruby
554 and atr>0 and ((old_break_info[atr] or post_intrusion_backup) > 0) then
555 -- 「直前のルビが文字に進入→現在のルビの和文処理グルーへの進入はなし」という状況
558 post_intrusion_backup, post_jfmgk_backup = 0, false
559 max_allow_post = rst.post or 0
560 max_margin = rst.maxmargin or 0
561 local coef = pre_low_cal_box(n, rst.count)
562 local s = node_tail(nv) --ルビ文字
563 head, n = pre_low_app_node(
564 head, n, rst.count, coef, getfield(s, 'height'), getfield(s, 'depth')
567 n = first_whatsit(node_next(n))
572 luatexbase.add_to_callback('pre_linebreak_filter', pre_high, 'ltj.ruby.pre', 100)
573 luatexbase.add_to_callback('hpack_filter', pre_high, 'ltj.ruby.pre', 100)
575 ----------------------------------------------------------------
577 ----------------------------------------------------------------
580 local function write_aux(wv, num, bool)
581 local id = has_attr(wv, attr_ruby_id)
582 if id>0 and cache_handle then
584 'lrob[' .. tostring(id) .. ']=' .. num .. '\nlrob[' .. tostring(-id) .. ']=' .. tostring(bool) .. '\n')
588 post_lown = function (rs, rw, cmp, ch)
589 -- ch: the head of `current' hlist
590 if #rs ==0 or not rw then return ch end
591 local hn = has_attr(rs[1], attr_ruby)
592 local fn = has_attr(rs[#rs], attr_ruby)
593 local wv = getfield(rw, 'value')
596 local hn = node_tail(wv)
598 insert_after(ch, rs[1], hn)
599 set_attr(hn, attr_icflag, PROCESSED)
600 write_aux(wv, has_attr(hn, attr_ruby), has_attr(hn, attr_ruby_post_jfmgk))-- 行中形
602 local deg, hn = (fn-1)/2, wv
603 for i = 1, deg do hn = node_next(hn) end;
605 setfield(hn, 'next', nil)
606 insert_after(ch, rs[1], hn)
607 set_attr(hn, attr_icflag, PROCESSED)
608 write_aux(wv, has_attr(hn, attr_ruby), has_attr(hn, attr_ruby_post_jfmgk))
611 local deg, hn = max((hn-1)/2,2), wv
612 for i = 1, cmp+deg-1 do hn = node_next(hn) end
613 -- -1 is needed except the case hn = 3,
614 -- because a ending-line form is removed already from the list
615 node_remove(wv, hn); setfield(hn, 'next', nil)
616 insert_after(ch, rs[1], hn)
617 set_attr(hn, attr_icflag, PROCESSED)
618 if fn == 2*cmp-1 then
619 write_aux(wv, has_attr(hn, attr_ruby), has_attr(hn, attr_ruby_post_jfmgk))
624 ch = node_remove(ch, ri); node_free(ri);
627 if fn >= 2*cmp+1 then node_free(rw) end
632 local function post_high_break(head)
633 local rs = {} -- rs: sequence of ruby_nodes,
634 local rw = nil -- rw: main whatsit
635 local cmp = -2 -- dummy
636 for h in node.direct.traverse_id(id_hlist, to_direct(head)) do
637 for i = 1, #rs do rs[i] = nil end
638 local ha = getlist(h)
640 local hai = getid(ha)
641 local i = ((hai == id_glue and getsubtype(ha)==0)
642 or (hai == id_rule and getsubtype(ha)==0)
643 or (hai == id_whatsit and getsubtype(ha)==sid_user
644 and getfield(ha, 'user_id', RUBY_POST)))
645 and has_attr(ha, attr_ruby) or 0
649 setfield(h, 'head', post_lown(rs, rw, cmp, getlist(h)))
650 for i = 2, #rs do rs[i] = nil end -- rs[1] is set by the next statement
651 rs[1], rw = ha, nil; ha = node_next(ha)
654 cmp = getfield(getfield(rw, 'value'), 'value').count
655 local hb, hc = node_remove(getlist(h), rw)
656 setfield(h, 'head', hb); ha = hc
658 rs[#rs+1] = ha; ha = node_next(ha)
661 setfield(h, 'head', post_lown(rs, rw, cmp, getlist(h)))
666 local function post_high_hbox(ahead)
667 local ha = to_direct(ahead); local head = ha
668 local rs = {}; -- rs: sequence of ruby_nodes,
669 local rw = nil; -- rw: main whatsit
672 local hai = getid(ha)
673 local i = ((hai == id_glue and getsubtype(ha)==0)
674 or (hai == id_rule and getsubtype(ha)==0)
675 or (hai == id_whatsit and getsubtype(ha)==sid_user
676 and getfield(ha, 'user_id', RUBY_POST)))
677 and has_attr(ha, attr_ruby) or 0
681 head = post_lown(rs, rw, cmp, head)
682 for i = 2, #rs do rs[i] = nil end -- rs[1] is set by the next statement
683 rs[1], rw = ha, nil; ha = node_next(ha)
686 cmp = getfield(getfield(rw, 'value'), 'value').count
687 head, ha = node_remove(head, rw)
689 rs[#rs+1] = ha; ha = node_next(ha)
692 return to_node(post_lown(rs, rw, cmp, head))
695 luatexbase.add_to_callback('post_linebreak_filter', post_high_break, 'ltj.ruby.post_break', 100)
696 luatexbase.add_to_callback('hpack_filter', post_high_hbox, 'ltj.ruby.post_hbox', 101)
699 ----------------------------------------------------------------
700 -- for jfmglue callbacks
701 ----------------------------------------------------------------
703 local RIPRE = luatexja.stack_table_index.RIPRE
704 local RIPOST = luatexja.stack_table_index.RIPOST
706 local function whatsit_callback(Np, lp, Nq)
707 if Np.nuc then return Np
708 elseif getfield(lp, 'user_id') == RUBY_PRE then
709 Np.first, Np.nuc, Np.last = lp, lp, lp
710 local lpv = getfield(lp, 'value')
711 local rst = getfield(lpv, 'value')
712 local x = node_next(node_next(lpv))
713 Np.last_char = luatexja.jfmglue.check_box_high(Np, getlist(x), nil)
714 if Nq.id ~=id_pbox_w then
715 if type(Nq.char)=='number' then
717 if rst.pre < 0 then -- auto
718 local s = ltjs.table_current_stack[RIPRE + Nq.char] or 0
719 local p = round(abs(s)*rst.rubyzw)
720 if rst.mode%2 == 0 then -- intrusion 無効
723 rst.pre = -p; rst.exclude_pre_from_prev_ruby = (s<0);
724 rst.exclude_pre_jfmgk_from_prev_ruby = (ltjs.table_current_stack[RIPOST +Nq.char] or 0)<0;
727 set_attr(lp, attr_ruby, Nq.prev_ruby)
729 elseif rst.pre < 0 then -- auto
730 if Nq.char == 'parbdd' then
731 local s = ltjs.table_current_stack[RIPRE - 1] or 0
732 local p = round(abs(s)*rst.rubyzw)
734 if rst.mode%2 == 0 then -- intrusion 無効
737 rst.pre = p; rst.exclude_pre_from_prev_ruby = (s<0);
738 rst.exclude_pre_jfmgk_from_prev_ruby = (ltjs.table_current_stack[RIPOST -1] or 0)<0;
743 elseif rst.pre < 0 then -- auto
751 luatexbase.add_to_callback("luatexja.jfmglue.whatsit_getinfo", whatsit_callback,
752 "luatexja.ruby.np_info", 1)
756 local FROM_JFM = luatexja.icflag_table.FROM_JFM
757 local KANJI_SKIP = luatexja.icflag_table.KANJI_SKIP
758 local function add_gk(t, index, p)
759 local ic = get_attr_icflag(p)
760 if ic and (ic>FROM_JFM) and (ic<KANJI_SKIP) then ic = FROM_JFM end
761 if t.intrude_jfmgk[ic] then
762 if getid(p)==id_kern then t[index] = t[index] + getfield(p, 'kern')
763 else t[index] = t[index] + getfield(p, 'width') end
766 local RIPOST = luatexja.stack_table_index.RIPOST
768 local function whatsit_after_callback(s, Nq, Np, head)
769 if not s and getfield(Nq.nuc, 'user_id') == RUBY_PRE then
771 local last_glue = node_new(id_glue)
772 set_attr(last_glue, attr_icflag, 0)
773 insert_before(Nq.nuc, Np.first, last_glue)
775 next_cluster_array[Nq.nuc] = last_glue -- ルビ処理用のグルー
777 local nqnv = getfield(Nq.nuc, 'value')
778 local rst = getfield(nqnv, 'value')
780 if type(Nq.gk)=="table" then
781 for _,v in ipairs(Nq.gk) do add_gk(rst, 'before_jfmgk', v) end
782 else add_gk(rst, 'before_jfmgk', Nq.gk) end
784 local x = node_next(node_next(nqnv))
785 for i = 2, rst.count do x = node_next(node_next(x)) end
786 Nq.last_char = luatexja.jfmglue.check_box_high(Nq, getlist(x), nil)
787 luatexja.jfmglue.after_hlist(Nq)
788 if Np and Np.id ~=id_pbox_w and type(Np.char)=='number' then
790 if rst.post < 0 then -- auto
791 local p = round(abs(ltjs.table_current_stack[RIPOST + Np.char] or 0)*rst.rubyzw)
792 if rst.mode%2 == 0 then -- intrusion 無効
797 Np.prev_ruby = has_attr(getfield(Nq.nuc, 'value'), attr_ruby_id)
798 -- 前のクラスタがルビであったことのフラグ
800 local nqnv = getfield(Nq.nuc, 'value')
801 local rst = getfield(nqnv, 'value')
802 if rst.post < 0 then -- auto
811 luatexbase.add_to_callback("luatexja.jfmglue.whatsit_after", whatsit_after_callback,
812 "luatexja.ruby.np_info_after", 1)
813 local function w (s, Nq, Np)
814 if not s and getfield(Nq.nuc, 'user_id') == RUBY_PRE then
815 local rst = getfield(getfield(Nq.nuc, 'value'), 'value')
817 if type(Np.gk)=="table" then
818 for _,v in ipairs(Np.gk) do add_gk(rst, 'after_jfmgk', v) end
819 else add_gk(rst, 'after_jfmgk', Np.gk) end
823 luatexbase.add_to_callback("luatexja.jfmglue.whatsit_last_minute", w,
824 "luatexja.ruby.np_info_last_minute", 1)