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 id_local = node.id('local_par')
142 local id_dir = node.id('dir')
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
161 elseif p.id~=id_local and p.id~=id_dir then
165 if flag==1 then -- dir_whatsit already exists
172 local node_next_node, node_tail_node = node.next, node.tail
173 local insert_after_node = node.insert_after
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 = tex_nest[lv].head
185 local hn = node.next(h)
186 hn = (hn and hn.id==id_local) and hn or h
187 local w = to_node(dir_pool[v]())
188 insert_after_node(h, hn, w)
189 tex_nest[lv].tail = node_tail_node(w)
190 ensure_tex_attr(attr_icflag, 0)
191 ensure_tex_attr(attr_dir, 0)
194 local function set_list_direction(v, name)
195 local lv = tex_nest.ptr
197 v,name = get_dir_count(), nil
198 if lv>=1 and abs(tex_nest[lv-1].mode) == ltjs.mmode and v == dir_tate then
202 v,name = get_adjust_dir_count(), nil
204 local current_nest = tex_nest[lv]
205 if tex.currentgrouptype==6 then
208 "You can't use `\\" .. name .. "' in an align",
209 "To change the direction in an align, \n"
210 .. "you shold use \\hbox or \\vbox.")
211 elseif current_nest.mode == ltjs.hmode or abs(current_nest.mode) == ltjs.mmode then
214 "Improper `\\" .. name .. "'",
215 'You cannot change the direction in unrestricted horizontal mode \n'
216 .. 'nor math modes.')
218 local h = (lv==0) and tex.lists.page_head or current_nest.head.next
219 local flag,w = test_list(h,lv)
221 if lv==0 and not page_direction then
222 page_direction = v -- for first call of \yoko (in luatexja-core.sty)
224 if luatexja.debug then
225 luatexja.ext_show_node_list(node.direct.tonode(h),'>> ', texio.write_nl)
229 "Use `\\" .. tostring(name) .. "' at top of list",
230 'Direction change command by LuaTeX-ja is available\n'
231 .. 'only when the current list is null.')
234 node_set_attr(w, attr_dir, v)
235 if lv==0 then page_direction = v end
238 else -- flag == 2: need to create dir whatsit.
239 local h = current_nest.head
240 local hn = node.next(h)
241 hn = (hn and hn.id==id_local) and hn or h
242 local w = to_node(dir_pool[v]())
243 insert_after_node(h,hn,w)
244 current_nest.tail = node_tail_node(w)
246 ensure_tex_attr(attr_icflag, 0)
248 ensure_tex_attr(attr_dir, 0)
250 luatexja.direction.set_list_direction = set_list_direction
253 -- ボックスに dir whatsit を追加
254 local function create_dir_whatsit(hd, gc, new_dir)
255 if getid(hd)==id_whatsit and
256 getsubtype(hd)==sid_user and getfield(hd, 'user_id')==DIR then
257 set_attr(hd, attr_icflag,
258 get_attr_icflag(hd) + PROCESSED_BEGIN_FLAG)
259 local n =node_next(hd)
261 set_attr(n, attr_icflag,
262 get_attr_icflag(n) + PROCESSED_BEGIN_FLAG)
264 ensure_tex_attr(attr_icflag, 0)
267 local w = dir_pool[new_dir]()
268 setfield(w, 'next', hd)
269 set_attr(w, attr_icflag, PROCESSED_BEGIN_FLAG)
270 set_attr(hd, attr_icflag,
271 get_attr_icflag(hd) + PROCESSED_BEGIN_FLAG)
272 ensure_tex_attr(attr_icflag, 0)
273 ensure_tex_attr(attr_dir, 0)
278 -- hpack_filter, vpack_filter, post_line_break_filter
279 -- の結果を組方向を明示するため,先頭に dir_node を設置
282 local function create_dir_whatsit_hpack(h, gc)
283 local hd = to_direct(h)
284 if gc=='fin_row' then
286 for p in traverse_id(15, hd) do -- unset
287 if get_box_dir(p, 0)==0 then
288 setfield(p, 'head', create_dir_whatsit(getlist(p), 'fin_row', ltjs.list_dir))
291 set_attr(hd, attr_icflag, PROCESSED_BEGIN_FLAG)
292 ensure_tex_attr(attr_icflag, 0)
295 elseif gc == 'preamble' then
298 return to_node(create_dir_whatsit(hd, gc, ltjs.list_dir))
302 ltjb.add_to_callback('hpack_filter',
303 create_dir_whatsit_hpack, 'ltj.create_dir_whatsit', 10000)
307 local function create_dir_whatsit_parbox(h, gc)
308 stop_time_measure('tex_linebreak');
309 -- start 側は ltj-debug.lua に
310 local new_dir = ltjs.list_dir
311 for line in traverse_id(id_hlist, to_direct(h)) do
312 setfield(line, 'head', create_dir_whatsit(getlist(line), gc, new_dir) )
314 ensure_tex_attr(attr_dir, 0)
317 ltjb.add_to_callback('post_linebreak_filter',
318 create_dir_whatsit_parbox, 'ltj.create_dir_whatsit', 10000)
321 local create_dir_whatsit_vbox
324 local id_glue, sid_parskip = node.id('glue'), 3
325 create_dir_whatsit_vbox = function (hd, gc)
326 ltjs.list_dir = get_dir_count()
327 -- remove dir whatsit
328 for x in traverse_id(id_whatsit, hd) do
329 if getsubtype(x)==sid_user and getfield(x, 'user_id')==DIR then
334 ltjs.list_dir =has_attr(hd,attr_dir)
335 local x = node_next(hd)
336 if getid(x)==id_glue and getsubtype(x)==sid_parskip then
337 node_remove(hd,x); node_free(x)
341 hd = node_remove(hd, wh[i]); node_free(wh[i]); wh[i] = nil
343 if gc=='fin_row' then -- gc == 'preamble' case is treated in dir_adjust_vpack
345 set_attr(hd, attr_icflag, PROCESSED_BEGIN_FLAG)
346 ensure_tex_attr(attr_icflag, 0)
350 local n =node_next(hd)
352 local w = create_dir_whatsit(hd, gc, ltjs.list_dir)
353 -- move dir whatsit after hd
354 setfield(hd, 'next', w); setfield(w, 'next', n)
357 hd = create_dir_whatsit(hd, gc, ltjs.list_dir)
364 -- dir_node に包む方法を書いたテーブル
367 local floor = math.floor
368 local get_h =function (w,h,d) return h end
369 local get_d =function (w,h,d) return d end
370 local get_h_d =function (w,h,d) return h+d end
371 local get_h_d_neg =function (w,h,d) return -h-d end
372 local get_d_neg =function (w,h,d) return -d end
373 local get_w_half =function (w,h,d) return floor(0.5*w) end
374 local get_w_half_rem =function (w,h,d) return w-floor(0.5*w) end
375 local get_w_neg =function (w,h,d) return -w end
376 local get_w =function (w,h,d) return w end
377 local zero = function() return 0 end
379 [dir_yoko] = { -- yoko を
380 [dir_tate] = { -- tate 中で組む
383 depth = get_w_half_rem,
385 { 'whatsit', sid_save },
386 { 'rotate', '0 1 -1 0' },
387 { 'kern', function(w,h,d,nw,nh,nd) return -nd end },
389 { 'kern', function(w,h,d,nw,nh,nd) return nd-w end },
390 { 'whatsit', sid_restore },
393 { 'whatsit', sid_save },
394 { 'rotate', '0 1 -1 0' },
396 { 'box' , function(w,h,d,nw,nh,nd) return -nh-nd end },
397 { 'kern', get_h_d_neg},
398 { 'whatsit', sid_restore },
401 [dir_dtou] = { -- dtou 中で組む
406 { 'whatsit', sid_save },
407 { 'rotate', '0 -1 1 0' },
408 { 'kern', function(w,h,d,nw,nh,nd) return -nh end },
409 { 'box', get_d_neg },
410 { 'kern', function(w,h,d,nw,nh,nd) return nh-w end },
411 { 'whatsit', sid_restore },
414 { 'whatsit', sid_save },
415 { 'rotate', '0 -1 1 0' },
416 { 'kern', get_h_d_neg },
418 { 'whatsit', sid_restore },
422 [dir_tate] = { -- tate を
423 [dir_yoko] = { -- yoko 中で組む
428 { 'whatsit', sid_save },
429 { 'rotate', '0 -1 1 0' },
430 { 'kern', function (w,h,d,nw,nh,nd) return -nh end },
431 { 'box' , get_d_neg },
432 { 'kern', function (w,h,d,nw,nh,nd) return nh-w end },
433 { 'whatsit', sid_restore },
436 { 'whatsit', sid_save },
437 { 'rotate', '0 -1 1 0' },
438 { 'kern', get_h_d_neg },
440 { 'whatsit', sid_restore },
443 [dir_dtou] = { -- dtou 中で組む
448 { 'whatsit', sid_save },
449 { 'rotate', '-1 0 0 -1' },
450 { 'kern', get_w_neg },
451 { 'box', function (w,h,d,nw,nh,nd) return h-nd end },
452 { 'whatsit', sid_restore },
455 { 'whatsit', sid_save },
456 { 'rotate', '-1 0 0 -1' },
457 { 'kern', get_h_d_neg },
458 { 'box', get_w_neg },
459 { 'whatsit', sid_restore },
463 [dir_dtou] = { -- dtou を
464 [dir_yoko] = { -- yoko 中で組む
469 { 'whatsit', sid_save },
470 { 'rotate', '0 1 -1 0' },
471 { 'kern', function (w,h,d,nw,nh,nd) return -nd end },
473 { 'kern', function (w,h,d,nw,nh,nd) return nd-w end },
474 { 'whatsit', sid_restore },
478 { 'whatsit', sid_save },
479 { 'rotate', '0 1 -1 0' },
480 { 'box', function (w,h,d,nw,nh,nd) return -nd-nh end },
481 { 'kern', get_h_d_neg },
482 { 'whatsit', sid_restore },
485 [dir_tate] = { -- tate 中で組む
490 { 'whatsit', sid_save },
491 { 'rotate', '-1 0 0 -1' },
492 { 'kern', get_w_neg },
493 { 'box', function (w,h,d,nw,nh,nd) return h-nd end },
494 { 'whatsit', sid_restore },
497 { 'whatsit', sid_save },
498 { 'rotate', ' -1 0 0 -1' },
499 { 'kern', function (w,h,d,nw,nh,nd) return -nh-nd end },
500 { 'box', get_w_neg },
501 { 'kern', function (w,h,d,nw,nh,nd) return nh+nd-h-d end },
502 { 'whatsit', sid_restore },
509 -- 1st ret val: b の組方向
510 -- 2nd ret val はその DIR whatsit
511 function get_box_dir(b, default)
512 start_time_measure('get_box_dir')
513 local dir = has_attr(b, attr_dir) or 0
514 local bh = getfield(b,'head')
515 -- b は insert node となりうるので getlist() は使えない
517 if bh~=0 then -- bh != nil
518 for bh in traverse_id(id_whatsit, bh) do
519 if getsubtype(bh)==sid_user and getfield(bh, 'user_id')==DIR then
521 dir = (dir==0) and has_attr(bh, attr_dir) or dir
526 -- if bh and getid(bh)==id_whatsit
527 -- and getsubtype(bh)==sid_user and getfield(bh, 'user_id')==DIR then
529 -- dir = (dir==0) and has_attr(bh, attr_dir) or dir
531 -- bh = node_next(bh)
533 stop_time_measure('get_box_dir')
534 return (dir==0 and default or dir), c
538 local getbox = tex.getbox
540 function luatexja.direction.unbox_check_dir(is_copy)
541 start_time_measure('box_primitive_hook')
542 local list_dir = get_dir_count()%dir_math_mod
543 local b = getbox(tex_getcount('ltj@tempcnta'))
544 if b and getlist(to_direct(b)) then
545 local box_dir = get_box_dir(to_direct(b), dir_yoko)
546 if box_dir%dir_math_mod ~= list_dir then
549 "Incompatible direction list can't be unboxed",
550 'I refuse to unbox a box in differrent direction.')
551 tex.sprint(cat_lp, '\\@gobbletwo')
554 local bd = to_direct(b)
555 local hd = getlist(bd)
558 if getid(hd)==id_whatsit and getsubtype(hd)==sid_user
559 and getfield(hd, 'user_id')==DIR then
561 nh, hd = node_remove(nh, hd)
562 if is_copy and (not dir_backup) then
564 setfield(dir_backup, 'next', nil)
572 setfield(bd, 'head', nh)
575 if luatexja.global_temp and tex.globaldefs~=luatexja.global_temp then
576 tex.globaldefs = luatexja.global_temp
578 stop_time_measure('box_primitive_hook')
580 function luatexja.direction.uncopy_restore_whatsit()
581 local b = getbox(tex_getcount('ltj@tempcnta'))
583 local bd = to_direct(b)
585 setfield(dir_backup, 'next', getlist(bd))
586 setfield(bd, 'head', dir_backup)
593 -- dir_node に包まれている「本来の中身」を取り出し,
595 local function unwrap_dir_node(b, head, box_dir)
596 -- b: dir_node, head: the head of list, box_dir:
597 -- return values are (new head), (next of b), (contents), (dir of contents)
598 local bh = getlist(b)
601 nh = insert_before(head, b, bh)
602 nh, nb = node_remove(nh, b)
603 setfield(b, 'next', nil)
606 local shift_old, b_dir, wh = nil, get_box_dir(bh, 0)
608 node.direct.flush_list(getfield(wh, 'value'))
609 setfield(wh, 'value', nil)
611 return nh, nb, bh, b_dir
614 -- is_manual: 寸法変更に伴うものか?
615 local function create_dir_node(b, b_dir, new_dir, is_manual)
616 local info = dir_node_aux[b_dir%dir_math_mod][new_dir%dir_math_mod]
617 local w = getfield(b, 'width')
618 local h = getfield(b, 'height')
619 local d = getfield(b, 'depth')
620 local db = node_new(getid(b)) -- dir_node
621 set_attr(db, attr_dir,
622 new_dir + (is_manual and dir_node_manual or dir_node_auto))
623 set_attr(db, attr_icflag, PROCESSED)
624 set_attr(b, attr_icflag, PROCESSED)
625 ensure_tex_attr(attr_dir, 0)
626 ensure_tex_attr(attr_icflag, 0)
627 setfield(db, 'dir', getfield(b, 'dir'))
628 setfield(db, 'shift', 0)
629 setfield(db, 'width', info.width(w,h,d))
630 setfield(db, 'height', info.height(w,h,d))
631 setfield(db, 'depth', info.depth(w,h,d))
636 local make_dir_whatsit, process_dir_node
638 make_dir_whatsit = function (head, b, new_dir, origin)
639 new_dir = new_dir%dir_math_mod
640 -- head: list head, b: box
641 -- origin: コール元 (for debug)
642 -- return value: (new head), (next of b), (new b), (is_b_dir_node)
643 -- (new b): b か dir_node に被せられた b
644 local bh = getlist(b)
645 local box_dir, dn = get_box_dir(b, ltjs.list_dir)
646 -- 既に b の中身にあるwhatsit
647 if (box_dir<dir_node_auto) and (not dn) then
648 bh = create_dir_whatsit(bh, 'make_dir_whatsit', dir_yoko)
649 dn = bh; setfield(b, 'head', bh)
651 if box_dir%dir_math_mod==new_dir then
652 if box_dir>=dir_node_auto then
653 -- dir_node としてカプセル化されている
654 local _, dnc = get_box_dir(b, 0)
655 if dnc then -- free all other dir_node
656 node.direct.flush_list(getfield(dnc, 'value'))
657 setfield(dnc, 'value', nil)
659 set_attr(b, attr_dir, box_dir%dir_math_mod + dir_node_auto)
660 return head, node_next(b), b, true
662 -- 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
663 return head, node_next(b), b, false
667 local nh, nb, ret, flag
668 if box_dir>= dir_node_auto then -- unwrap
670 head, nb, b, b_dir = unwrap_dir_node(b, head, box_dir)
672 if b_dir%dir_math_mod==new_dir then
673 -- dir_node の中身が周囲の組方向とあっている
674 return head, nb, b, false
675 else box_dir = b_dir end
677 box_dir = box_dir%dir_math_mod
679 local dnh = getfield(dn, 'value')
680 for x in traverse(dnh) do
681 if has_attr(x, attr_dir)%dir_math_mod == new_dir then
682 setfield(dn, 'value', to_node(node_remove(dnh, x)))
686 node.direct.flush_list(getfield(dn, 'value'))
687 setfield(dn, 'value', nil)
688 db = db or create_dir_node(b, box_dir, new_dir, false)
689 local w = getfield(b, 'width')
690 local h = getfield(b, 'height')
691 local d = getfield(b, 'depth')
692 local dn_w = getfield(db, 'width')
693 local dn_h = getfield(db, 'height')
694 local dn_d = getfield(db, 'depth')
695 nh, nb = insert_before(head, b, db), nil
696 nh, nb = node_remove(nh, b)
697 setfield(b, 'next', nil); setfield(db, 'head', b)
699 return nh, nb, ret, flag
702 process_dir_node = function (hd, gc)
703 local x, new_dir = hd, ltjs.list_dir or dir_yoko
706 if (xid==id_hlist and get_attr_icflag(x)~=PACKED)
707 or xid==id_vlist then
708 hd, x = make_dir_whatsit(hd, x, new_dir, 'process_dir_node:' .. gc)
717 local node_prev = (node.direct~=node) and node.direct.getprev or node.prev
718 local id_glue = node.id('glue')
719 local function lastbox_hook()
720 start_time_measure('box_primitive_hook')
721 local bn = tex_nest[tex_nest.ptr].tail
723 local b, head = to_direct(bn), to_direct(tex_nest[tex_nest.ptr].head)
725 if bid==id_hlist or bid==id_vlist then
727 -- alignment の各行の中身が入ったボックス
728 if p and getid(p)==id_glue and getsubtype(p)==12 then -- tabskip
729 local np = node_next(p); local npid = getid(np)
730 if npid==id_hlist or npid==id_vlist then
731 setfield(b, 'head', create_dir_whatsit(p, 'align', get_box_dir(np, 0)))
734 local box_dir = get_box_dir(b, 0)
735 if box_dir>= dir_node_auto then -- unwrap dir_node
736 local p = node_prev(b)
737 local dummy1, dummy2, nb = unwrap_dir_node(b, nil, box_dir)
738 setfield(p, 'next', nb); tex_nest[tex_nest.ptr].tail = to_node(nb)
739 setfield(b, 'next', nil); setfield(b, 'head', nil)
742 local _, wh = get_box_dir(b, 0) -- clean dir_node attached to the box
744 node.direct.flush_list(getfield('value', wh))
745 setfield(wh, 'value', nil)
749 stop_time_measure('box_primitive_hook')
752 luatexja.direction.make_dir_whatsit = make_dir_whatsit
753 luatexja.direction.lastbox_hook = lastbox_hook
756 -- \wd, \ht, \dp の代わり
758 local getbox, setdimen = tex.getbox, tex.setdimen
759 local function get_box_dim_common(key, s, l_dir)
761 local s_dir, wh = get_box_dir(s, dir_yoko)
762 s_dir = s_dir%dir_math_mod
763 if s_dir ~= l_dir then
764 local not_found = true
765 for x in traverse(getfield(wh, 'value')) do
766 if l_dir == has_attr(x, attr_dir)%dir_node_auto then
767 setdimen('ltj@tempdima', getfield(x, key))
768 not_found = false; break
772 local w = getfield(s, 'width')
773 local h = getfield(s, 'height')
774 local d = getfield(s, 'depth')
775 setdimen('ltj@tempdima',
776 dir_node_aux[s_dir][l_dir][key](w,h,d))
779 setdimen('ltj@tempdima', getfield(s, key))
782 local function get_box_dim(key, n)
783 local gt = tex.globaldefs; tex.globaldefs = 0
786 local l_dir = (get_dir_count())%dir_math_mod
788 local b_dir = get_box_dir(s,dir_yoko)
789 if b_dir<dir_node_auto then
790 get_box_dim_common(key, s, l_dir)
791 elseif b_dir%dir_math_mod==l_dir then
792 setdimen('ltj@tempdima', getfield(s, key))
794 get_box_dim_common(key, getlist(s), l_dir)
797 setdimen('ltj@tempdima', 0)
799 tex.sprint(cat_lp, '\\ltj@tempdima')
802 luatexja.direction.get_box_dim = get_box_dim
804 -- return value: (changed dimen of box itself?)
805 local scan_dimen, scan_int = token.scan_dimen, token.scan_int
806 local scan_keyword = token.scan_keyword
807 local function set_box_dim_common(key, s, l_dir)
808 local s_dir, wh = get_box_dir(s, dir_yoko)
809 s_dir = s_dir%dir_math_mod
810 if s_dir ~= l_dir then
812 wh = create_dir_whatsit(getlist(s), 'set_box_dim', s_dir)
813 setfield(s, 'head', wh)
816 local dnh = getfield(wh, 'value')
817 for x in traverse(dnh) do
818 if has_attr(x, attr_dir)%dir_node_auto==l_dir then
823 db = create_dir_node(s, s_dir, l_dir, true)
824 setfield(db, 'next', dnh)
825 setfield(wh, 'value',to_node(db))
827 setfield(db, key, scan_dimen())
830 setfield(s, key, scan_dimen())
832 -- change dimension of dir_nodes which are created "automatically"
834 = getfield(s,'width'), getfield(s, 'height'), getfield(s, 'depth')
835 for x in traverse(getfield(wh, 'value')) do
836 local x_dir = has_attr(x, attr_dir)
837 if x_dir<dir_node_manual then
838 local info = dir_node_aux[s_dir][x_dir%dir_node_auto]
839 setfield(x, 'width', info.width(bw,bh,bd))
840 setfield(x, 'height', info.height(bw,bh,bd))
841 setfield(x, 'depth', info.depth(bw,bh,bd))
848 local function set_box_dim(key)
849 local s = getbox(scan_int()); scan_keyword('=')
851 local l_dir = (get_dir_count())%dir_math_mod
853 local b_dir = get_box_dir(s,dir_yoko)
854 if b_dir<dir_node_auto then
855 set_box_dim_common(key, s, l_dir)
856 elseif b_dir%dir_math_mod == l_dir then
858 setfield(s, key, scan_dimen())
859 if b_dir<dir_node_manual then
860 set_attr(s, attr_dir, b_dir%dir_node_auto + dir_node_manual)
863 local sid, b = getid(s), getlist(s)
864 local info = dir_node_aux[get_box_dir(b,dir_yoko)%dir_math_mod][b_dir%dir_node_auto]
866 = getfield(b,'width'), getfield(b, 'height'), getfield(b, 'depth')
868 = getfield(s,'width'), getfield(s, 'height'), getfield(s, 'depth')
869 if set_box_dim_common(key, b, l_dir) and b_dir<dir_node_manual then
870 -- re-calculate dimension of s, if s is created "automatically"
871 if b_dir<dir_node_manual then
872 setfield(s, 'width', info.width(bw,bh,bd))
873 setfield(s, 'height', info.height(bw,bh,bd))
874 setfield(s, 'depth', info.depth(bw,bh,bd))
880 luatexja.direction.set_box_dim = set_box_dim
884 local getbox = tex.getbox
885 local function get_register_dir(n)
889 local b_dir = get_box_dir(s, dir_yoko)
890 if b_dir<dir_node_auto then
893 local b_dir = get_box_dir(
894 node_next(node_next(node_next(getlist(s)))), dir_yoko)
901 luatexja.direction.get_register_dir = get_register_dir
905 local getbox, setbox, copy_list = tex.getbox, tex.setbox, node.direct.copy_list
907 function luatexja.direction.raise_box()
908 start_time_measure('box_primitive_hook')
909 local list_dir = get_dir_count()
910 local s = getbox('ltj@afbox')
912 local sd = to_direct(s)
913 local box_dir = get_box_dir(sd, dir_yoko)
914 if box_dir%dir_math_mod ~= list_dir then
917 to_node(copy_list(make_dir_whatsit(sd, sd, list_dir, 'box_move')))
918 -- copy_list しないとリストの整合性が崩れる……?
922 stop_time_measure('box_primitive_hook')
926 -- PACKED の hbox から文字を取り出す
927 -- luatexja.jfmglue.check_box などで使用
929 local function glyph_from_packed(h)
931 return (getid(b)==id_kern or (getid(b)==id_whatsit and getsubtype(b)==sid_save) )
932 and node_next(node_next(node_next(b))) or b
934 luatexja.direction.glyph_from_packed = glyph_from_packed
939 local id_adjust = node.id('adjust')
940 function luatexja.direction.check_adjust_direction()
941 start_time_measure('box_primitive_hook')
942 local list_dir = get_adjust_dir_count()
943 local a = tex_nest[tex_nest.ptr].tail
944 local ad = to_direct(a)
945 if a and getid(ad)==id_adjust then
946 local adj_dir = get_box_dir(ad)
947 if list_dir~=adj_dir then
950 'Direction Incompatible',
951 "\\vadjust's argument and outer vlist must have same direction.")
952 node.direct.last_node()
955 stop_time_measure('box_primitive_hook')
961 local id_ins = node.id('ins')
962 local id_rule = node.id('rule')
963 function luatexja.direction.populate_insertion_dir_whatsit()
964 start_time_measure('box_primitive_hook')
965 local list_dir = get_dir_count()
966 local a = tex_nest[tex_nest.ptr].tail
967 local ad = to_direct(a)
968 if (not a) or getid(ad)~=id_ins then
969 a = node.tail(tex.lists.page_head); ad = to_direct(a)
971 if a and getid(ad)==id_ins then
972 local h = getfield(ad, 'head')
973 if getid(h)==id_whatsit and
974 getsubtype(h)==sid_user and getfield(h, 'user_id')==DIR then
975 local n = h; h = node_remove(h,h)
978 for box_rule in traverse(h) do
979 if getid(box_rule)<id_rule then
980 h = insert_before(h, box_rule, dir_pool[list_dir]())
983 ensure_tex_attr(attr_dir, 0)
984 setfield(ad, 'head', h)
986 stop_time_measure('box_primitive_hook')
992 local split_dir_whatsit, split_dir_head
993 local cat_lp = luatexbase.catcodetables['latex-package']
994 local sprint, scan_int, tex_getbox = tex.sprint, token.scan_int, tex.getbox
995 function luatexja.direction.vsplit()
996 local n = scan_int();
997 local p = to_direct(tex_getbox(n))
1000 local bh = getlist(p)
1001 if getid(bh)==id_whatsit and getsubtype(bh)==sid_user and getfield(bh, 'user_id')==DIR
1002 and node_next(bh) then
1003 ltjs.list_dir = has_attr(bh, attr_dir)
1004 local q = node_next(p)
1005 setfield(p, 'head', node_remove(bh,bh,bh))
1009 sprint(cat_lp, '\\ltj@@orig@vsplit' .. tostring(n))
1011 local function dir_adjust_vpack(h, gc)
1012 start_time_measure('direction_vpack')
1013 local hd = to_direct(h)
1014 if gc=='split_keep' then
1015 -- supply dir_whatsit
1016 hd = create_dir_whatsit_vbox(hd, gc)
1017 split_dir_whatsit = hd
1018 elseif gc=='split_off' then
1019 if split_dir_head then
1020 ltjs.list_dir = has_attr(split_dir_head, attr_dir)
1021 hd = insert_before(hd, hd, split_dir_head)
1024 if split_dir_whatsit then
1025 -- adjust direction of 'split_keep'
1026 set_attr(split_dir_whatsit, attr_dir, ltjs.list_dir)
1028 split_dir_whatsit=nil
1029 elseif gc=='preamble' then
1030 split_dir_whatsit=nil
1033 -- hd = process_dir_node(create_dir_whatsit_vbox(hd, gc), gc)
1034 -- done in append_to_vpack callback
1035 hd = create_dir_whatsit_vbox(hd, gc)
1036 split_dir_whatsit=nil
1038 stop_time_measure('direction_vpack')
1041 ltjb.add_to_callback('vpack_filter',
1043 'ltj.direction', 10000)
1047 -- supply direction whatsit to the main vertical list "of the next page"
1048 local function dir_adjust_pre_output(h, gc)
1049 return to_node(create_dir_whatsit_vbox(to_direct(h), gc))
1051 ltjb.add_to_callback('pre_output_filter',
1052 dir_adjust_pre_output,
1053 'ltj.direction', 10000)
1055 function luatexja.direction.remove_end_whatsit()
1056 local h=tex.lists.page_head
1057 if h and (not h.next) and
1058 h.id==id_whatsit and h.subtype==sid_user and
1059 h.user_id == DIR then
1060 tex.lists.page_head = nil
1066 -- append_to_vlist filter: done in ltj-lineskip.lua
1068 -- finalize (executed just before \shipout)
1069 -- we supply correct pdfsavematrix nodes etc. inside dir_node
1071 local finalize_inner
1072 local function finalize_dir_node(db,new_dir)
1073 local b = getlist(db)
1074 if getid(b)==id_whatsit and getsubtype(b)==sid_user
1075 and getfield(b, 'user_id')==DIR then
1076 local ob = b; b = node_remove(b,b); setfield(db, 'head', b);
1080 local w = getfield(b, 'width')
1081 local h = getfield(b, 'height')
1082 local d = getfield(b, 'depth')
1083 local dn_w = getfield(db, 'width')
1084 local dn_h = getfield(db, 'height')
1085 local dn_d = getfield(db, 'depth')
1086 local db_head, db_tail
1087 local t = dir_node_aux[get_box_dir(b, dir_yoko)%dir_math_mod][new_dir]
1088 t = t and t[getid(b)]; if not t then return end
1089 for _,v in ipairs(t) do
1090 local cmd, arg, nn = v[1], v[2]
1092 nn = node_new(id_kern, 1)
1093 setfield(nn, 'kern', arg(w, h, d, dn_w, dn_h, dn_d))
1094 elseif cmd=='whatsit' then
1095 nn = node_new(id_whatsit, arg)
1096 elseif cmd=='rotate' then
1097 nn = node_new(id_whatsit, sid_matrix)
1098 setfield(nn, 'data', arg)
1099 elseif cmd=='box' then
1100 nn = b; setfield(b, 'next', nil)
1101 setfield(nn, 'shift', arg(w, h, d, dn_w, dn_h, dn_d))
1104 insert_after(db_head, db_tail, nn)
1107 setfield(db, 'head', nn)
1108 db_head, db_tail = nn, nn
1113 tex.setattribute(attr_dir, dir_yoko)
1114 local shipout_temp = node_new(id_hlist)
1115 tex.setattribute(attr_dir, 0)
1117 finalize_inner = function (box)
1118 for n in traverse(getlist(box)) do
1119 local nid = getid(n)
1120 if (nid==id_hlist or nid==id_vlist) then
1121 local ndir = get_box_dir(n, dir_yoko)
1122 if ndir>=dir_node_auto then -- n is dir_node
1123 finalize_dir_node(n, ndir%dir_math_mod)
1130 local getbox = tex.getbox
1131 local setbox, copy = node.direct.setbox, node.direct.copy
1132 local lua_mem_kb = 0
1133 function luatexja.direction.finalize()
1134 local a = to_direct(tex.getbox("AtBeginShipoutBox"))
1135 local a_dir = get_box_dir(a, dir_yoko)
1136 if a_dir~=dir_yoko then
1137 local b = create_dir_node(a, a_dir, dir_yoko, false)
1138 setfield(b, 'head', a); a = b
1140 setfield(shipout_temp, 'head', a)
1141 finalize_inner(shipout_temp)
1142 setbox('global', "AtBeginShipoutBox", copy(getlist(shipout_temp)))
1143 setfield(shipout_temp, 'head',nil)
1145 --local m = collectgarbage('count')
1146 --if m>lua_mem_kb+20480 then
1147 -- collectgarbage(); lua_mem_kb = collectgarbage('count')
1149 --print('Lua Memory Usage', lua_mem_kb)