2 -- src/ltj-direction.lua
5 luatexja.load_module('base'); local ltjb = luatexja.base
6 luatexja.load_module('stack'); local ltjs = luatexja.stack
7 luatexja.direction = {}
9 local attr_dir = luatexbase.attributes['ltj@dir']
10 local attr_icflag = luatexbase.attributes['ltj@icflag']
12 local cat_lp = luatexbase.catcodetables['latex-package']
13 local to_node = node.direct.tonode
14 local to_direct = node.direct.todirect
15 local has_attr = node.direct.has_attribute
16 local set_attr = node.direct.set_attribute
17 local insert_before = node.direct.insert_before
18 local insert_after = node.direct.insert_after
19 local getid = node.direct.getid
20 local getsubtype = node.direct.getsubtype
21 local getlist = node.direct.getlist
22 local setfield = node.direct.setfield
23 local getfield = node.direct.getfield
24 local node_new = node.direct.new
25 local node_tail = node.direct.tail
26 local node_free = node.direct.free
27 local node_remove = node.direct.remove
28 local node_next = node.direct.getnext
29 local traverse = node.direct.traverse
30 local traverse_id = node.direct.traverse_id
31 local start_time_measure, stop_time_measure
32 = ltjb.start_time_measure, ltjb.stop_time_measure
35 local id_kern = node.id('kern')
36 local id_hlist = node.id('hlist')
37 local id_vlist = node.id('vlist')
38 local id_whatsit = node.id('whatsit')
39 local sid_save = node.subtype('pdf_save')
40 local sid_restore = node.subtype('pdf_restore')
41 local sid_matrix = node.subtype('pdf_setmatrix')
42 local sid_user = node.subtype('user_defined')
44 local tex_nest = tex.nest
45 local tex_getcount = tex.getcount
46 local ensure_tex_attr = ltjb.ensure_tex_attr
47 local PROCESSED = luatexja.icflag_table.PROCESSED
48 local PROCESSED_BEGIN_FLAG = luatexja.icflag_table.PROCESSED_BEGIN_FLAG
49 local PACKED = luatexja.icflag_table.PACKED
50 local DIR = luatexja.userid_table.DIR
51 local dir_tate = luatexja.dir_table.dir_tate
52 local dir_yoko = luatexja.dir_table.dir_yoko
53 local dir_dtou = luatexja.dir_table.dir_dtou
54 local dir_utod = luatexja.dir_table.dir_utod
55 local dir_math_mod = luatexja.dir_table.dir_math_mod
56 local dir_node_auto = luatexja.dir_table.dir_node_auto
57 local dir_node_manual = luatexja.dir_table.dir_node_manual
58 local function get_attr_icflag(p)
59 return (has_attr(p, attr_icflag) or 0) % PROCESSED_BEGIN_FLAG
66 local node_copy = node.direct.copy
68 for _,i in pairs({dir_tate, dir_yoko, dir_dtou, dir_utod}) do
69 local w = node_new(id_whatsit, sid_user)
70 set_attr(w, attr_dir, i)
71 setfield(w, 'user_id', DIR)
72 setfield(w, 'type', 110)
73 setfield(w, 'next', nil)
74 dir_pool[i] = function () return node_copy(w) end
79 local function adjust_badness(hd)
80 if not node_next(hd) and getid(hd)==id_whatsit and getsubtype(hd)==sid_user
81 and getfield(hd, 'user_id')==DIR then
82 -- avoid double whatsit
83 luatexja.global_temp=tex.globaldefs; tex.globaldefs=0
84 luatexja.hbadness_temp=tex.hbadness; tex.hbadness=10000
85 luatexja.vbadness_temp=tex.vbadness; tex.vbadness=10000
87 luatexja.global_temp = nil
88 luatexja.hbadness_temp=nil
89 luatexja.vbadness_temp=nil
93 local get_dir_count, get_adjust_dir_count
95 local function get_dir_count_inner(h)
97 if h.id==id_whatsit and h.subtype==sid_user and h.user_id==DIR then
98 local ic = node.has_attribute(h, attr_icflag) or 0
99 return (ic<PROCESSED_BEGIN_FLAG)
100 and (node.has_attribute(h,attr_dir)%dir_node_auto) or 0
108 function get_dir_count()
109 for i=tex_nest.ptr, 1, -1 do
110 local h = tex_nest[i].head.next
112 local t = get_dir_count_inner(h)
113 if t~=0 then return t end
116 return page_direction
118 function get_adjust_dir_count()
119 for i=tex_nest.ptr, 1, -1 do
120 local v = tex_nest[i]
121 local h, m = v.head.next, v.mode
122 if abs(m)== ltjs.vmode and h then
123 local t = get_dir_count_inner(h)
124 if t~=0 then return t end
127 return page_direction
129 luatexja.direction.get_dir_count = get_dir_count
130 luatexja.direction.get_adjust_dir_count = get_adjust_dir_count
134 -- \tate, \yoko,\dtou, \utod
136 local node_next = node.next
137 local node_set_attr = node.set_attribute
138 local node_traverse = node.traverse
139 local STCK = luatexja.userid_table.STCK
140 local IHB = luatexja.userid_table.IHB
141 local sid_local = node.subtype('local_par')
142 local id_local = node.id('local_par')
144 local function test_list(h, lv)
146 return 2 -- need to create dir_whatsit
148 local flag = 2 -- need to create dir_whatsit
150 for p in node_traverse(h) do
151 if p.id==id_whatsit then
156 flag = 1; w = w or p -- found
157 elseif not(uid==IHB or uid==STCK) then
158 flag = 0; break -- error
160 elseif ps~=sid_local then
163 elseif p.id~=id_local then
167 if flag==1 then -- dir_whatsit already exists
174 function luatexja.direction.set_list_direction_hook(v)
175 local lv = tex_nest.ptr -- must be >= 1
178 if abs(tex_nest[lv-1].mode) == ltjs.mmode and v == dir_tate then
182 v = get_adjust_dir_count()
184 local h = to_direct(tex_nest[lv].head)
185 local w = dir_pool[v]()
186 insert_after(h, h, w)
187 tex_nest[lv].tail = to_node(node_tail(w))
188 ensure_tex_attr(attr_icflag, 0)
189 ensure_tex_attr(attr_dir, 0)
192 local function set_list_direction(v, name)
193 local lv = tex_nest.ptr
195 v,name = get_dir_count(), nil
196 if lv>=1 and abs(tex_nest[lv-1].mode) == ltjs.mmode and v == dir_tate then
200 v,name = get_adjust_dir_count(), nil
202 if tex.currentgrouptype==6 then
205 "You can't use `\\" .. name .. "' in an align",
206 "To change direction in an align, \n"
207 .. "you shold use \\hbox or \\vbox.")
209 local h = (lv==0) and tex.lists.page_head or tex_nest[lv].head.next
210 local flag,w = test_list(h,lv)
212 if lv==0 and not page_direction then
213 page_direction = v -- for first call of \yoko (in luatexja-core.sty)
217 "Use `\\" .. tostring(name) .. "' at top of list",
218 'Direction change command by LuaTeX-ja is available\n'
219 .. 'only when the current list is null.')
222 node_set_attr(w, attr_dir, v)
223 if lv==0 then page_direction = v end
225 if lv==0 then page_direction = v end
227 ensure_tex_attr(attr_icflag, 0)
229 ensure_tex_attr(attr_dir, 0)
231 luatexja.direction.set_list_direction = set_list_direction
234 -- ボックスに dir whatsit を追加
235 local function create_dir_whatsit(hd, gc, new_dir)
236 if getid(hd)==id_whatsit and
237 getsubtype(hd)==sid_user and getfield(hd, 'user_id')==DIR then
238 set_attr(hd, attr_icflag,
239 get_attr_icflag(hd) + PROCESSED_BEGIN_FLAG)
240 local n = node_next(hd)
242 set_attr(n, attr_icflag,
243 get_attr_icflag(n) + PROCESSED_BEGIN_FLAG)
245 ensure_tex_attr(attr_icflag, 0)
248 local w = dir_pool[new_dir]()
249 setfield(w, 'next', hd)
250 set_attr(w, attr_icflag, PROCESSED_BEGIN_FLAG)
251 set_attr(hd, attr_icflag,
252 get_attr_icflag(hd) + PROCESSED_BEGIN_FLAG)
253 ensure_tex_attr(attr_icflag, 0)
254 ensure_tex_attr(attr_dir, 0)
259 -- hpack_filter, vpack_filter, post_line_break_filter
260 -- の結果を組方向を明示するため,先頭に dir_node を設置
262 local function create_dir_whatsit_hpack(h, gc)
263 local hd = to_direct(h)
264 if gc=='fin_row' or gc == 'preamble' then
266 set_attr(hd, attr_icflag, PROCESSED_BEGIN_FLAG)
267 ensure_tex_attr(attr_icflag, 0)
272 return to_node(create_dir_whatsit(hd, gc, ltjs.list_dir))
276 ltjb.add_to_callback('hpack_filter',
277 create_dir_whatsit_hpack, 'ltj.create_dir_whatsit', 10000)
281 local function create_dir_whatsit_parbox(h, gc)
282 stop_time_measure('tex_linebreak')
283 -- start 側は ltj-debug.lua に
284 local new_dir = ltjs.list_dir
285 for line in traverse_id(id_hlist, to_direct(h)) do
286 setfield(line, 'head', create_dir_whatsit(getlist(line), gc, new_dir) )
288 ensure_tex_attr(attr_dir, 0)
291 ltjb.add_to_callback('post_linebreak_filter',
292 create_dir_whatsit_parbox, 'ltj.create_dir_whatsit', 10000)
295 local create_dir_whatsit_vbox
298 local id_glue, sid_parskip = node.id('glue'), 3
299 create_dir_whatsit_vbox = function (hd, gc)
300 ltjs.list_dir = get_dir_count()
301 -- remove dir whatsit
302 for x in traverse_id(id_whatsit, hd) do
303 if getsubtype(x)==sid_user and getfield(x, 'user_id')==DIR then
308 ltjs.list_dir =has_attr(hd,attr_dir)
309 local x = node_next(hd)
310 if getid(x)==id_glue and getsubtype(x)==sid_parskip then
311 node_remove(hd,x); node_free(x)
315 hd = node_remove(hd, wh[i]); node_free(wh[i]); wh[i] = nil
317 if gc=='fin_row' then -- gc == 'preamble' case is treated in dir_adjust_vpack
319 set_attr(hd, attr_icflag, PROCESSED_BEGIN_FLAG)
320 ensure_tex_attr(attr_icflag, 0)
324 local n =node_next(hd)
326 local w = create_dir_whatsit(hd, gc, ltjs.list_dir)
327 -- move dir whatsit after hd
328 setfield(hd, 'next', w); setfield(w, 'next', n)
331 hd = create_dir_whatsit(hd, gc, ltjs.list_dir)
338 -- dir_node に包む方法を書いたテーブル
341 local floor = math.floor
342 local get_h =function (w,h,d) return h end
343 local get_d =function (w,h,d) return d end
344 local get_h_d =function (w,h,d) return h+d end
345 local get_h_d_neg =function (w,h,d) return -h-d end
346 local get_d_neg =function (w,h,d) return -d end
347 local get_w_half =function (w,h,d) return floor(0.5*w) end
348 local get_w_half_rem =function (w,h,d) return w-floor(0.5*w) end
349 local get_w_neg =function (w,h,d) return -w end
350 local get_w =function (w,h,d) return w end
351 local zero = function() return 0 end
353 [dir_yoko] = { -- yoko を
354 [dir_tate] = { -- tate 中で組む
357 depth = get_w_half_rem,
359 { 'whatsit', sid_save },
360 { 'rotate', '0 1 -1 0' },
361 { 'kern', function(w,h,d,nw,nh,nd) return -nd end },
363 { 'kern', function(w,h,d,nw,nh,nd) return nd-w end },
364 { 'whatsit', sid_restore },
367 { 'whatsit', sid_save },
368 { 'rotate', '0 1 -1 0' },
370 { 'box' , function(w,h,d,nw,nh,nd) return -nh-nd end },
371 { 'kern', get_h_d_neg},
372 { 'whatsit', sid_restore },
375 [dir_dtou] = { -- dtou 中で組む
380 { 'whatsit', sid_save },
381 { 'rotate', '0 -1 1 0' },
382 { 'kern', function(w,h,d,nw,nh,nd) return -nh end },
383 { 'box', get_d_neg },
384 { 'kern', function(w,h,d,nw,nh,nd) return nh-w end },
385 { 'whatsit', sid_restore },
388 { 'whatsit', sid_save },
389 { 'rotate', '0 -1 1 0' },
390 { 'kern', get_h_d_neg },
392 { 'whatsit', sid_restore },
396 [dir_tate] = { -- tate を
397 [dir_yoko] = { -- yoko 中で組む
402 { 'whatsit', sid_save },
403 { 'rotate', '0 -1 1 0' },
404 { 'kern', function (w,h,d,nw,nh,nd) return -nh end },
405 { 'box' , get_d_neg },
406 { 'kern', function (w,h,d,nw,nh,nd) return nh-w end },
407 { 'whatsit', sid_restore },
410 { 'whatsit', sid_save },
411 { 'rotate', '0 -1 1 0' },
412 { 'kern', get_h_d_neg },
414 { 'whatsit', sid_restore },
417 [dir_dtou] = { -- dtou 中で組む
422 { 'whatsit', sid_save },
423 { 'rotate', '-1 0 0 -1' },
424 { 'kern', get_w_neg },
425 { 'box', function (w,h,d,nw,nh,nd) return h-nd end },
426 { 'whatsit', sid_restore },
429 { 'whatsit', sid_save },
430 { 'rotate', '-1 0 0 -1' },
431 { 'kern', get_h_d_neg },
432 { 'box', get_w_neg },
433 { 'whatsit', sid_restore },
437 [dir_dtou] = { -- dtou を
438 [dir_yoko] = { -- yoko 中で組む
443 { 'whatsit', sid_save },
444 { 'rotate', '0 1 -1 0' },
445 { 'kern', function (w,h,d,nw,nh,nd) return -nd end },
447 { 'kern', function (w,h,d,nw,nh,nd) return nd-w end },
448 { 'whatsit', sid_restore },
452 { 'whatsit', sid_save },
453 { 'rotate', '0 1 -1 0' },
454 { 'box', function (w,h,d,nw,nh,nd) return -nd-nh end },
455 { 'kern', get_h_d_neg },
456 { 'whatsit', sid_restore },
459 [dir_tate] = { -- tate 中で組む
464 { 'whatsit', sid_save },
465 { 'rotate', '-1 0 0 -1' },
466 { 'kern', get_w_neg },
467 { 'box', function (w,h,d,nw,nh,nd) return h-nd end },
468 { 'whatsit', sid_restore },
471 { 'whatsit', sid_save },
472 { 'rotate', ' -1 0 0 -1' },
473 { 'kern', function (w,h,d,nw,nh,nd) return -nh-nd end },
474 { 'box', get_w_neg },
475 { 'kern', function (w,h,d,nw,nh,nd) return nh+nd-h-d end },
476 { 'whatsit', sid_restore },
483 -- 1st ret val: b の組方向
484 -- 2nd ret val はその DIR whatsit
485 local function get_box_dir(b, default)
486 start_time_measure('get_box_dir')
487 local dir = has_attr(b, attr_dir) or 0
488 local bh = getfield(b,'head')
489 -- b は insert node となりうるので getlist() は使えない
491 if bh~=0 then -- bh != nil
492 for bh in traverse_id(id_whatsit, bh) do
493 if getsubtype(bh)==sid_user and getfield(bh, 'user_id')==DIR then
495 dir = (dir==0) and has_attr(bh, attr_dir) or dir
500 -- if bh and getid(bh)==id_whatsit
501 -- and getsubtype(bh)==sid_user and getfield(bh, 'user_id')==DIR then
503 -- dir = (dir==0) and has_attr(bh, attr_dir) or dir
505 -- bh = node_next(bh)
507 stop_time_measure('get_box_dir')
508 return (dir==0 and default or dir), c
512 local getbox = tex.getbox
514 function luatexja.direction.unbox_check_dir(is_copy)
515 start_time_measure('box_primitive_hook')
516 local list_dir = get_dir_count()%dir_math_mod
517 local b = getbox(tex_getcount('ltj@tempcnta'))
519 local box_dir = get_box_dir(to_direct(b), dir_yoko)
520 if box_dir%dir_math_mod ~= list_dir then
523 "Incompatible direction list can't be unboxed",
524 'I refuse to unbox a box in differrent direction.')
525 tex.sprint(cat_lp, '\\@gobbletwo')
528 local bd = to_direct(b)
529 local hd = getlist(bd)
532 if getid(hd)==id_whatsit and getsubtype(hd)==sid_user
533 and getfield(hd, 'user_id')==DIR then
535 nh, hd = node_remove(nh, hd)
536 if is_copy and (not dir_backup) then
538 setfield(dir_backup, 'next', nil)
546 setfield(bd, 'head', nh)
549 if luatexja.global_temp and tex.globaldefs~=luatexja.global_temp then
550 tex.globaldefs = luatexja.global_temp
552 stop_time_measure('box_primitive_hook')
554 function luatexja.direction.uncopy_restore_whatsit()
555 local b = getbox(tex_getcount('ltj@tempcnta'))
557 local bd = to_direct(b)
559 setfield(dir_backup, 'next', getlist(bd))
560 setfield(bd, 'head', dir_backup)
567 -- dir_node に包まれている「本来の中身」を取り出し,
569 local function unwrap_dir_node(b, head, box_dir)
570 -- b: dir_node, head: the head of list, box_dir:
571 -- return values are (new head), (next of b), (contents), (dir of contents)
572 local bh = getlist(b)
575 nh = insert_before(head, b, bh)
576 nh, nb = node_remove(nh, b)
577 setfield(b, 'next', nil)
580 local shift_old, b_dir, wh = nil, get_box_dir(bh, 0)
582 node.direct.flush_list(getfield(wh, 'value'))
583 setfield(wh, 'value', nil)
585 return nh, nb, bh, b_dir
588 -- is_manual: 寸法変更に伴うものか?
589 local function create_dir_node(b, b_dir, new_dir, is_manual)
590 local info = dir_node_aux[b_dir%dir_math_mod][new_dir%dir_math_mod]
591 local w = getfield(b, 'width')
592 local h = getfield(b, 'height')
593 local d = getfield(b, 'depth')
594 local db = node_new(getid(b)) -- dir_node
595 set_attr(db, attr_dir,
596 new_dir + (is_manual and dir_node_manual or dir_node_auto))
597 set_attr(db, attr_icflag, PROCESSED)
598 set_attr(b, attr_icflag, PROCESSED)
599 ensure_tex_attr(attr_dir, 0)
600 ensure_tex_attr(attr_icflag, 0)
601 setfield(db, 'dir', getfield(b, 'dir'))
602 setfield(db, 'shift', 0)
603 setfield(db, 'width', info.width(w,h,d))
604 setfield(db, 'height', info.height(w,h,d))
605 setfield(db, 'depth', info.depth(w,h,d))
610 local make_dir_whatsit, process_dir_node
612 make_dir_whatsit = function (head, b, new_dir, origin)
613 new_dir = new_dir%dir_math_mod
614 -- head: list head, b: box
615 -- origin: コール元 (for debug)
616 -- return value: (new head), (next of b), (new b), (is_b_dir_node)
617 -- (new b): b か dir_node に被せられた b
618 local bh = getlist(b)
619 local box_dir, dn = get_box_dir(b, ltjs.list_dir)
620 -- 既に b の中身にあるwhatsit
622 if box_dir%dir_math_mod==new_dir then
623 if box_dir>=dir_node_auto then
624 -- dir_node としてカプセル化されている
625 local _, dnc = get_box_dir(b, 0)
626 if dnc then -- free all other dir_node
627 node.direct.flush_list(getfield(dnc, 'value'))
628 setfield(dnc, 'value', nil)
630 set_attr(b, attr_dir, box_dir%dir_math_mod + dir_node_auto)
631 return head, node_next(b), b, true
633 -- 組方向が一緒 (up to math dir) のボックスなので,何もしなくて良い
634 return head, node_next(b), b, false
638 local nh, nb, ret, flag
639 if box_dir>= dir_node_auto then -- unwrap
641 head, nb, b, b_dir = unwrap_dir_node(b, head, box_dir)
643 if b_dir%dir_math_mod==new_dir then
644 -- dir_node の中身が周囲の組方向とあっている
645 return head, nb, b, false
646 else box_dir = b_dir end
648 box_dir = box_dir%dir_math_mod
650 local dnh = getfield(dn, 'value')
651 for x in traverse(dnh) do
652 if has_attr(x, attr_dir)%dir_math_mod == new_dir then
653 setfield(dn, 'value', to_node(node_remove(dnh, x)))
657 node.direct.flush_list(getfield(dn, 'value'))
658 setfield(dn, 'value', nil)
659 db = db or create_dir_node(b, box_dir, new_dir, false)
660 local w = getfield(b, 'width')
661 local h = getfield(b, 'height')
662 local d = getfield(b, 'depth')
663 local dn_w = getfield(db, 'width')
664 local dn_h = getfield(db, 'height')
665 local dn_d = getfield(db, 'depth')
666 nh, nb = insert_before(head, b, db), nil
667 nh, nb = node_remove(nh, b)
668 setfield(b, 'next', nil); setfield(db, 'head', b)
670 return nh, nb, ret, flag
673 process_dir_node = function (hd, gc)
674 local x, new_dir = hd, ltjs.list_dir or dir_yoko
677 if (xid==id_hlist and get_attr_icflag(x)~=PACKED)
678 or xid==id_vlist then
679 hd, x = make_dir_whatsit(hd, x, new_dir, 'process_dir_node:' .. gc)
688 local node_prev = (node.direct~=node) and node.direct.getprev or node.prev
689 local function lastbox_hook()
690 start_time_measure('box_primitive_hook')
691 local bn = tex_nest[tex_nest.ptr].tail
693 local b, head = to_direct(bn), to_direct(tex_nest[tex_nest.ptr].head)
695 if bid==id_hlist or bid==id_vlist then
696 local box_dir = get_box_dir(b, 0)
697 if box_dir>= dir_node_auto then -- unwrap dir_node
698 local p = node_prev(b)
699 local dummy1, dummy2, nb = unwrap_dir_node(b, nil, box_dir)
700 setfield(p, 'next', nb); tex_nest[tex_nest.ptr].tail = to_node(nb)
701 setfield(b, 'next', nil); setfield(b, 'head', nil)
704 local _, wh = get_box_dir(b, 0) -- clean dir_node attached to the box
706 node.direct.flush_list(getfield('value', wh))
707 setfield(wh, 'value', nil)
711 stop_time_measure('box_primitive_hook')
714 luatexja.direction.make_dir_whatsit = make_dir_whatsit
715 luatexja.direction.lastbox_hook = lastbox_hook
718 -- \wd, \ht, \dp の代わり
720 local getbox, setdimen = tex.getbox, tex.setdimen
721 local function get_box_dim_common(key, s, l_dir)
723 local s_dir, wh = get_box_dir(s, dir_yoko)
724 s_dir = s_dir%dir_math_mod
725 if s_dir ~= l_dir then
726 local not_found = true
727 for x in traverse(getfield(wh, 'value')) do
728 if l_dir == has_attr(x, attr_dir)%dir_node_auto then
729 setdimen('ltj@tempdima', getfield(x, key))
730 not_found = false; break
734 local w = getfield(s, 'width')
735 local h = getfield(s, 'height')
736 local d = getfield(s, 'depth')
737 setdimen('ltj@tempdima',
738 dir_node_aux[s_dir][l_dir][key](w,h,d))
741 setdimen('ltj@tempdima', getfield(s, key))
744 local function get_box_dim(key, n)
745 local gt = tex.globaldefs; tex.globaldefs = 0
748 local l_dir = (get_dir_count())%dir_math_mod
750 local b_dir = get_box_dir(s,dir_yoko)
751 if b_dir<dir_node_auto then
752 get_box_dim_common(key, s, l_dir)
753 elseif b_dir%dir_math_mod==l_dir then
754 setdimen('ltj@tempdima', getfield(s, key))
756 get_box_dim_common(key, getlist(s), l_dir)
759 setdimen('ltj@tempdima', 0)
761 tex.sprint(cat_lp, '\\ltj@tempdima')
764 luatexja.direction.get_box_dim = get_box_dim
766 -- return value: (changed dimen of box itself?)
767 local scan_dimen, scan_int = luatexja.token.scan_dimen, luatexja.token.scan_int
768 local scan_keyword = luatexja.token.scan_keyword
769 local function set_box_dim_common(key, s, l_dir)
770 local s_dir, wh = get_box_dir(s, dir_yoko)
771 s_dir = s_dir%dir_math_mod
772 if s_dir ~= l_dir then
774 wh = create_dir_whatsit(getlist(s), 'set_box_dim', s_dir)
775 setfield(s, 'head', wh)
778 local dnh = getfield(wh, 'value')
779 for x in traverse(dnh) do
780 if has_attr(x, attr_dir)%dir_node_auto==l_dir then
785 db = create_dir_node(s, s_dir, l_dir, true)
786 setfield(db, 'next', dnh)
787 setfield(wh, 'value',to_node(db))
789 setfield(db, key, scan_dimen())
792 setfield(s, key, scan_dimen())
794 -- change dimension of dir_nodes which are created "automatically"
796 = getfield(s,'width'), getfield(s, 'height'), getfield(s, 'depth')
797 for x in traverse(getfield(wh, 'value')) do
798 local x_dir = has_attr(x, attr_dir)
799 if x_dir<dir_node_manual then
800 local info = dir_node_aux[s_dir][x_dir%dir_node_auto]
801 setfield(x, 'width', info.width(bw,bh,bd))
802 setfield(x, 'height', info.height(bw,bh,bd))
803 setfield(x, 'depth', info.depth(bw,bh,bd))
810 local function set_box_dim(key)
811 local s = getbox(scan_int()); scan_keyword('=')
813 local l_dir = (get_dir_count())%dir_math_mod
815 local b_dir = get_box_dir(s,dir_yoko)
816 if b_dir<dir_node_auto then
817 set_box_dim_common(key, s, l_dir)
818 elseif b_dir%dir_math_mod == l_dir then
820 setfield(s, key, scan_dimen())
821 if b_dir<dir_node_manual then
822 set_attr(s, attr_dir, b_dir%dir_node_auto + dir_node_manual)
825 local sid, b = getid(s), getlist(s)
826 local info = dir_node_aux[get_box_dir(b,dir_yoko)%dir_math_mod][b_dir%dir_node_auto]
828 = getfield(b,'width'), getfield(b, 'height'), getfield(b, 'depth')
830 = getfield(s,'width'), getfield(s, 'height'), getfield(s, 'depth')
831 if set_box_dim_common(key, b, l_dir) and b_dir<dir_node_manual then
832 -- re-calculate dimension of s, if s is created "automatically"
833 if b_dir<dir_node_manual then
834 setfield(s, 'width', info.width(bw,bh,bd))
835 setfield(s, 'height', info.height(bw,bh,bd))
836 setfield(s, 'depth', info.depth(bw,bh,bd))
842 luatexja.direction.set_box_dim = set_box_dim
846 local getbox = tex.getbox
847 local function get_register_dir(n)
851 local b_dir = get_box_dir(s, dir_yoko)
852 if b_dir<dir_node_auto then
855 local b_dir = get_box_dir(
856 node_next(node_next(node_next(getlist(s)))), dir_yoko)
863 luatexja.direction.get_register_dir = get_register_dir
867 local getbox, setbox, copy_list = tex.getbox, tex.setbox, node.direct.copy_list
869 function luatexja.direction.raise_box()
870 start_time_measure('box_primitive_hook')
871 local list_dir = get_dir_count()
872 local s = getbox('ltj@afbox')
874 local sd = to_direct(s)
875 local box_dir = get_box_dir(sd, dir_yoko)
876 if box_dir%dir_math_mod ~= list_dir then
879 to_node(copy_list(make_dir_whatsit(sd, sd, list_dir, 'box_move')))
880 -- copy_list しないとリストの整合性が崩れる……?
884 stop_time_measure('box_primitive_hook')
888 -- PACKED の hbox から文字を取り出す
889 -- luatexja.jfmglue.check_box などで使用
891 local function glyph_from_packed(h)
893 return (getid(b)==id_kern or (getid(b)==id_whatsit and getsubtype(b)==sid_save) )
894 and node_next(node_next(node_next(b))) or b
896 luatexja.direction.glyph_from_packed = glyph_from_packed
901 local id_adjust = node.id('adjust')
902 function luatexja.direction.check_adjust_direction()
903 start_time_measure('box_primitive_hook')
904 local list_dir = get_adjust_dir_count()
905 local a = tex_nest[tex_nest.ptr].tail
906 local ad = to_direct(a)
907 if a and getid(ad)==id_adjust then
908 local adj_dir = get_box_dir(ad)
909 if list_dir~=adj_dir then
912 'Direction Incompatible',
913 "\\vadjust's argument and outer vlist must have same direction.")
914 node.direct.last_node()
917 stop_time_measure('box_primitive_hook')
923 local id_ins = node.id('ins')
924 local id_rule = node.id('rule')
925 function luatexja.direction.populate_insertion_dir_whatsit()
926 start_time_measure('box_primitive_hook')
927 local list_dir = get_dir_count()
928 local a = tex_nest[tex_nest.ptr].tail
929 local ad = to_direct(a)
930 if a and getid(ad)==id_ins then
931 local h = getfield(ad, 'head')
932 if getid(h)==id_whatsit and
933 getsubtype(h)==sid_user and getfield(h, 'user_id')==DIR then
934 local n = h; h = node_remove(h,h)
937 for box_rule in traverse(h) do
938 if getid(box_rule)<id_rule then
939 h = insert_before(h, box_rule, dir_pool[list_dir]())
942 ensure_tex_attr(attr_dir, 0)
943 setfield(ad, 'head', h)
945 stop_time_measure('box_primitive_hook')
951 local split_dir_whatsit
952 local function dir_adjust_vpack(h, gc)
953 start_time_measure('direction_vpack')
954 local hd = to_direct(h)
955 if gc=='split_keep' then
956 -- supply dir_whatsit
957 hd = create_dir_whatsit_vbox(hd, gc)
958 split_dir_whatsit = hd
959 elseif gc=='split_off' then
960 for bh in traverse_id(id_whatsit, hd) do
961 if getsubtype(bh)==sid_user and getfield(bh, 'user_id')==DIR then
962 ltjs.list_dir = has_attr(bh, attr_dir); break
967 -- if bh and getid(bh)==id_whatsit
968 -- and getsubtype(bh)==sid_user and getfield(bh, 'user_id')==DIR then
969 -- ltjs.list_dir = has_attr(bh, attr_dir); break
971 -- bh = node_next(bh)
973 if split_dir_whatsit then
974 -- adjust direction of 'split_keep'
975 set_attr(split_dir_whatsit, attr_dir, ltjs.list_dir)
977 split_dir_whatsit=nil
978 elseif gc=='preamble' then
979 split_dir_whatsit=nil
982 hd = process_dir_node(create_dir_whatsit_vbox(hd, gc), gc)
983 split_dir_whatsit=nil
985 stop_time_measure('direction_vpack')
988 ltjb.add_to_callback('vpack_filter',
990 'ltj.direction', 10000)
994 -- supply direction whatsit to the main vertical list "of the next page"
995 local function dir_adjust_pre_output(h, gc)
996 return to_node(create_dir_whatsit_vbox(to_direct(h), gc))
998 ltjb.add_to_callback('pre_output_filter',
999 dir_adjust_pre_output,
1000 'ltj.direction', 10000)
1002 function luatexja.direction.remove_end_whatsit()
1003 local h=tex.lists.page_head
1004 if h and (not h.next) and
1005 h.id==id_whatsit and h.subtype==sid_user and
1006 h.user_id == DIR then
1007 tex.lists.page_head = nil
1015 local function dir_adjust_buildpage(info)
1017 local head = to_direct(tex.lists.contrib_head)
1019 head = make_dir_whatsit(head,
1023 tex.lists.contrib_head = to_node(head)
1027 ltjb.add_to_callback('buildpage_filter',
1028 dir_adjust_buildpage,
1029 'ltj.direction', 10000)
1032 -- finalize (executed just before \shipout)
1033 -- we supply correct pdfsavematrix nodes etc. inside dir_node
1035 local finalize_inner
1036 local function finalize_dir_node(db,new_dir)
1037 local b = getlist(db)
1039 local w = getfield(b, 'width')
1040 local h = getfield(b, 'height')
1041 local d = getfield(b, 'depth')
1042 local dn_w = getfield(db, 'width')
1043 local dn_h = getfield(db, 'height')
1044 local dn_d = getfield(db, 'depth')
1045 local db_head, db_tail
1046 for _,v in ipairs(dir_node_aux
1047 [get_box_dir(b, dir_yoko)%dir_math_mod][new_dir][getid(b)]) do
1048 local cmd, arg, nn = v[1], v[2]
1050 nn = node_new(id_kern)
1051 setfield(nn, 'kern', arg(w, h, d, dn_w, dn_h, dn_d))
1052 elseif cmd=='whatsit' then
1053 nn = node_new(id_whatsit, arg)
1054 elseif cmd=='rotate' then
1055 nn = node_new(id_whatsit, sid_matrix)
1056 setfield(nn, 'data', arg)
1057 elseif cmd=='box' then
1058 nn = b; setfield(b, 'next', nil)
1059 setfield(nn, 'shift', arg(w, h, d, dn_w, dn_h, dn_d))
1062 insert_after(db_head, db_tail, nn)
1065 setfield(db, 'head', nn)
1066 db_head, db_tail = nn, nn
1071 tex.setattribute(attr_dir, dir_yoko)
1072 local shipout_temp = node_new(id_hlist)
1073 tex.setattribute(attr_dir, 0)
1075 finalize_inner = function (box)
1076 for n in traverse(getlist(box)) do
1077 local nid = getid(n)
1078 if (nid==id_hlist or nid==id_vlist) then
1079 local ndir = get_box_dir(n, dir_yoko)
1080 if ndir>=dir_node_auto then -- n is dir_node
1081 finalize_dir_node(n, ndir%dir_math_mod)
1088 local getbox = tex.getbox
1089 local setbox, copy = node.direct.setbox, node.direct.copy
1090 local lua_mem_kb = 0
1091 function luatexja.direction.finalize()
1092 local a = to_direct(tex.getbox("AtBeginShipoutBox"))
1093 local a_dir = get_box_dir(a, dir_yoko)
1094 if a_dir~=dir_yoko then
1095 local b = create_dir_node(a, a_dir, dir_yoko, false)
1096 setfield(b, 'head', a); a = b
1098 setfield(shipout_temp, 'head', a)
1099 finalize_inner(shipout_temp)
1100 setbox('global', "AtBeginShipoutBox", copy(getlist(shipout_temp)))
1101 setfield(shipout_temp, 'head',nil)
1104 --local m = collectgarbage('count')
1105 --if m>lua_mem_kb+20480 then
1106 -- collectgarbage(); lua_mem_kb = collectgarbage('count')
1108 --print('Lua Memory Usage', lua_mem_kb)