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')
143 local function test_list(h, lv)
145 return 2 -- need to create dir_whatsit
147 local flag = 2 -- need to create dir_whatsit
149 for p in node_traverse(h) do
150 if p.id==id_whatsit then
155 flag = 1; w = w or p -- found
156 elseif not(uid==IHB or uid==STCK) then
157 flag = 0; break -- error
160 elseif p.id~=id_local then
164 if flag==1 then -- dir_whatsit already exists
171 local node_next_node, node_tail_node = node.next, node.tail
172 local insert_after_node = node.insert_after
173 function luatexja.direction.set_list_direction_hook(v)
174 local lv = tex_nest.ptr -- must be >= 1
177 if abs(tex_nest[lv-1].mode) == ltjs.mmode and v == dir_tate then
181 v = get_adjust_dir_count()
183 local h = tex_nest[lv].head
184 local hn = node.next(h)
185 hn = (hn and hn.id==id_local) and hn or h
186 local w = to_node(dir_pool[v]())
187 insert_after_node(h, hn, w)
188 tex_nest[lv].tail = node_tail_node(w)
189 ensure_tex_attr(attr_icflag, 0)
190 ensure_tex_attr(attr_dir, 0)
193 local function set_list_direction(v, name)
194 local lv = tex_nest.ptr
196 v,name = get_dir_count(), nil
197 if lv>=1 and abs(tex_nest[lv-1].mode) == ltjs.mmode and v == dir_tate then
201 v,name = get_adjust_dir_count(), nil
203 if tex.currentgrouptype==6 then
206 "You can't use `\\" .. name .. "' in an align",
207 "To change direction in an align, \n"
208 .. "you shold use \\hbox or \\vbox.")
210 local h = (lv==0) and tex.lists.page_head or tex_nest[lv].head.next
211 local flag,w = test_list(h,lv)
213 if lv==0 and not page_direction then
214 page_direction = v -- for first call of \yoko (in luatexja-core.sty)
218 "Use `\\" .. tostring(name) .. "' at top of list",
219 'Direction change command by LuaTeX-ja is available\n'
220 .. 'only when the current list is null.')
223 node_set_attr(w, attr_dir, v)
224 if lv==0 then page_direction = v end
226 if lv==0 then page_direction = v end
228 ensure_tex_attr(attr_icflag, 0)
230 ensure_tex_attr(attr_dir, 0)
232 luatexja.direction.set_list_direction = set_list_direction
235 -- ボックスに dir whatsit を追加
236 local function create_dir_whatsit(hd, gc, new_dir)
237 if getid(hd)==id_whatsit and
238 getsubtype(hd)==sid_user and getfield(hd, 'user_id')==DIR then
239 set_attr(hd, attr_icflag,
240 get_attr_icflag(hd) + PROCESSED_BEGIN_FLAG)
241 local n =node_next(hd)
243 set_attr(n, attr_icflag,
244 get_attr_icflag(n) + PROCESSED_BEGIN_FLAG)
246 ensure_tex_attr(attr_icflag, 0)
249 local w = dir_pool[new_dir]()
250 setfield(w, 'next', hd)
251 set_attr(w, attr_icflag, PROCESSED_BEGIN_FLAG)
252 set_attr(hd, attr_icflag,
253 get_attr_icflag(hd) + PROCESSED_BEGIN_FLAG)
254 ensure_tex_attr(attr_icflag, 0)
255 ensure_tex_attr(attr_dir, 0)
260 -- hpack_filter, vpack_filter, post_line_break_filter
261 -- の結果を組方向を明示するため,先頭に dir_node を設置
263 local function create_dir_whatsit_hpack(h, gc)
264 local hd = to_direct(h)
265 if gc=='fin_row' or gc == 'preamble' then
267 set_attr(hd, attr_icflag, PROCESSED_BEGIN_FLAG)
268 ensure_tex_attr(attr_icflag, 0)
273 return to_node(create_dir_whatsit(hd, gc, ltjs.list_dir))
277 ltjb.add_to_callback('hpack_filter',
278 create_dir_whatsit_hpack, 'ltj.create_dir_whatsit', 10000)
282 local function create_dir_whatsit_parbox(h, gc)
283 stop_time_measure('tex_linebreak')
284 -- start 側は ltj-debug.lua に
285 local new_dir = ltjs.list_dir
286 for line in traverse_id(id_hlist, to_direct(h)) do
287 setfield(line, 'head', create_dir_whatsit(getlist(line), gc, new_dir) )
289 ensure_tex_attr(attr_dir, 0)
292 ltjb.add_to_callback('post_linebreak_filter',
293 create_dir_whatsit_parbox, 'ltj.create_dir_whatsit', 10000)
296 local create_dir_whatsit_vbox
299 local id_glue, sid_parskip = node.id('glue'), 3
300 create_dir_whatsit_vbox = function (hd, gc)
301 ltjs.list_dir = get_dir_count()
302 -- remove dir whatsit
303 for x in traverse_id(id_whatsit, hd) do
304 if getsubtype(x)==sid_user and getfield(x, 'user_id')==DIR then
309 ltjs.list_dir =has_attr(hd,attr_dir)
310 local x = node_next(hd)
311 if getid(x)==id_glue and getsubtype(x)==sid_parskip then
312 node_remove(hd,x); node_free(x)
316 hd = node_remove(hd, wh[i]); node_free(wh[i]); wh[i] = nil
318 if gc=='fin_row' then -- gc == 'preamble' case is treated in dir_adjust_vpack
320 set_attr(hd, attr_icflag, PROCESSED_BEGIN_FLAG)
321 ensure_tex_attr(attr_icflag, 0)
325 local n =node_next(hd)
327 local w = create_dir_whatsit(hd, gc, ltjs.list_dir)
328 -- move dir whatsit after hd
329 setfield(hd, 'next', w); setfield(w, 'next', n)
332 hd = create_dir_whatsit(hd, gc, ltjs.list_dir)
339 -- dir_node に包む方法を書いたテーブル
342 local floor = math.floor
343 local get_h =function (w,h,d) return h end
344 local get_d =function (w,h,d) return d end
345 local get_h_d =function (w,h,d) return h+d end
346 local get_h_d_neg =function (w,h,d) return -h-d end
347 local get_d_neg =function (w,h,d) return -d end
348 local get_w_half =function (w,h,d) return floor(0.5*w) end
349 local get_w_half_rem =function (w,h,d) return w-floor(0.5*w) end
350 local get_w_neg =function (w,h,d) return -w end
351 local get_w =function (w,h,d) return w end
352 local zero = function() return 0 end
354 [dir_yoko] = { -- yoko を
355 [dir_tate] = { -- tate 中で組む
358 depth = get_w_half_rem,
360 { 'whatsit', sid_save },
361 { 'rotate', '0 1 -1 0' },
362 { 'kern', function(w,h,d,nw,nh,nd) return -nd end },
364 { 'kern', function(w,h,d,nw,nh,nd) return nd-w end },
365 { 'whatsit', sid_restore },
368 { 'whatsit', sid_save },
369 { 'rotate', '0 1 -1 0' },
371 { 'box' , function(w,h,d,nw,nh,nd) return -nh-nd end },
372 { 'kern', get_h_d_neg},
373 { 'whatsit', sid_restore },
376 [dir_dtou] = { -- dtou 中で組む
381 { 'whatsit', sid_save },
382 { 'rotate', '0 -1 1 0' },
383 { 'kern', function(w,h,d,nw,nh,nd) return -nh end },
384 { 'box', get_d_neg },
385 { 'kern', function(w,h,d,nw,nh,nd) return nh-w end },
386 { 'whatsit', sid_restore },
389 { 'whatsit', sid_save },
390 { 'rotate', '0 -1 1 0' },
391 { 'kern', get_h_d_neg },
393 { 'whatsit', sid_restore },
397 [dir_tate] = { -- tate を
398 [dir_yoko] = { -- yoko 中で組む
403 { 'whatsit', sid_save },
404 { 'rotate', '0 -1 1 0' },
405 { 'kern', function (w,h,d,nw,nh,nd) return -nh end },
406 { 'box' , get_d_neg },
407 { 'kern', function (w,h,d,nw,nh,nd) return nh-w end },
408 { 'whatsit', sid_restore },
411 { 'whatsit', sid_save },
412 { 'rotate', '0 -1 1 0' },
413 { 'kern', get_h_d_neg },
415 { 'whatsit', sid_restore },
418 [dir_dtou] = { -- dtou 中で組む
423 { 'whatsit', sid_save },
424 { 'rotate', '-1 0 0 -1' },
425 { 'kern', get_w_neg },
426 { 'box', function (w,h,d,nw,nh,nd) return h-nd end },
427 { 'whatsit', sid_restore },
430 { 'whatsit', sid_save },
431 { 'rotate', '-1 0 0 -1' },
432 { 'kern', get_h_d_neg },
433 { 'box', get_w_neg },
434 { 'whatsit', sid_restore },
438 [dir_dtou] = { -- dtou を
439 [dir_yoko] = { -- yoko 中で組む
444 { 'whatsit', sid_save },
445 { 'rotate', '0 1 -1 0' },
446 { 'kern', function (w,h,d,nw,nh,nd) return -nd end },
448 { 'kern', function (w,h,d,nw,nh,nd) return nd-w end },
449 { 'whatsit', sid_restore },
453 { 'whatsit', sid_save },
454 { 'rotate', '0 1 -1 0' },
455 { 'box', function (w,h,d,nw,nh,nd) return -nd-nh end },
456 { 'kern', get_h_d_neg },
457 { 'whatsit', sid_restore },
460 [dir_tate] = { -- tate 中で組む
465 { 'whatsit', sid_save },
466 { 'rotate', '-1 0 0 -1' },
467 { 'kern', get_w_neg },
468 { 'box', function (w,h,d,nw,nh,nd) return h-nd end },
469 { 'whatsit', sid_restore },
472 { 'whatsit', sid_save },
473 { 'rotate', ' -1 0 0 -1' },
474 { 'kern', function (w,h,d,nw,nh,nd) return -nh-nd end },
475 { 'box', get_w_neg },
476 { 'kern', function (w,h,d,nw,nh,nd) return nh+nd-h-d end },
477 { 'whatsit', sid_restore },
484 -- 1st ret val: b の組方向
485 -- 2nd ret val はその DIR whatsit
486 local function get_box_dir(b, default)
487 start_time_measure('get_box_dir')
488 local dir = has_attr(b, attr_dir) or 0
489 local bh = getfield(b,'head')
490 -- b は insert node となりうるので getlist() は使えない
492 if bh~=0 then -- bh != nil
493 for bh in traverse_id(id_whatsit, bh) do
494 if getsubtype(bh)==sid_user and getfield(bh, 'user_id')==DIR then
496 dir = (dir==0) and has_attr(bh, attr_dir) or dir
501 -- if bh and getid(bh)==id_whatsit
502 -- and getsubtype(bh)==sid_user and getfield(bh, 'user_id')==DIR then
504 -- dir = (dir==0) and has_attr(bh, attr_dir) or dir
506 -- bh = node_next(bh)
508 stop_time_measure('get_box_dir')
509 return (dir==0 and default or dir), c
513 local getbox = tex.getbox
515 function luatexja.direction.unbox_check_dir(is_copy)
516 start_time_measure('box_primitive_hook')
517 local list_dir = get_dir_count()%dir_math_mod
518 local b = getbox(tex_getcount('ltj@tempcnta'))
520 local box_dir = get_box_dir(to_direct(b), dir_yoko)
521 if box_dir%dir_math_mod ~= list_dir then
524 "Incompatible direction list can't be unboxed",
525 'I refuse to unbox a box in differrent direction.')
526 tex.sprint(cat_lp, '\\@gobbletwo')
529 local bd = to_direct(b)
530 local hd = getlist(bd)
533 if getid(hd)==id_whatsit and getsubtype(hd)==sid_user
534 and getfield(hd, 'user_id')==DIR then
536 nh, hd = node_remove(nh, hd)
537 if is_copy and (not dir_backup) then
539 setfield(dir_backup, 'next', nil)
547 setfield(bd, 'head', nh)
550 if luatexja.global_temp and tex.globaldefs~=luatexja.global_temp then
551 tex.globaldefs = luatexja.global_temp
553 stop_time_measure('box_primitive_hook')
555 function luatexja.direction.uncopy_restore_whatsit()
556 local b = getbox(tex_getcount('ltj@tempcnta'))
558 local bd = to_direct(b)
560 setfield(dir_backup, 'next', getlist(bd))
561 setfield(bd, 'head', dir_backup)
568 -- dir_node に包まれている「本来の中身」を取り出し,
570 local function unwrap_dir_node(b, head, box_dir)
571 -- b: dir_node, head: the head of list, box_dir:
572 -- return values are (new head), (next of b), (contents), (dir of contents)
573 local bh = getlist(b)
576 nh = insert_before(head, b, bh)
577 nh, nb = node_remove(nh, b)
578 setfield(b, 'next', nil)
581 local shift_old, b_dir, wh = nil, get_box_dir(bh, 0)
583 node.direct.flush_list(getfield(wh, 'value'))
584 setfield(wh, 'value', nil)
586 return nh, nb, bh, b_dir
589 -- is_manual: 寸法変更に伴うものか?
590 local function create_dir_node(b, b_dir, new_dir, is_manual)
591 local info = dir_node_aux[b_dir%dir_math_mod][new_dir%dir_math_mod]
592 local w = getfield(b, 'width')
593 local h = getfield(b, 'height')
594 local d = getfield(b, 'depth')
595 local db = node_new(getid(b)) -- dir_node
596 set_attr(db, attr_dir,
597 new_dir + (is_manual and dir_node_manual or dir_node_auto))
598 set_attr(db, attr_icflag, PROCESSED)
599 set_attr(b, attr_icflag, PROCESSED)
600 ensure_tex_attr(attr_dir, 0)
601 ensure_tex_attr(attr_icflag, 0)
602 setfield(db, 'dir', getfield(b, 'dir'))
603 setfield(db, 'shift', 0)
604 setfield(db, 'width', info.width(w,h,d))
605 setfield(db, 'height', info.height(w,h,d))
606 setfield(db, 'depth', info.depth(w,h,d))
611 local make_dir_whatsit, process_dir_node
613 make_dir_whatsit = function (head, b, new_dir, origin)
614 new_dir = new_dir%dir_math_mod
615 -- head: list head, b: box
616 -- origin: コール元 (for debug)
617 -- return value: (new head), (next of b), (new b), (is_b_dir_node)
618 -- (new b): b か dir_node に被せられた b
619 local bh = getlist(b)
620 local box_dir, dn = get_box_dir(b, ltjs.list_dir)
621 -- 既に b の中身にあるwhatsit
623 if box_dir%dir_math_mod==new_dir then
624 if box_dir>=dir_node_auto then
625 -- dir_node としてカプセル化されている
626 local _, dnc = get_box_dir(b, 0)
627 if dnc then -- free all other dir_node
628 node.direct.flush_list(getfield(dnc, 'value'))
629 setfield(dnc, 'value', nil)
631 set_attr(b, attr_dir, box_dir%dir_math_mod + dir_node_auto)
632 return head, node_next(b), b, true
634 -- 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
635 return head, node_next(b), b, false
639 local nh, nb, ret, flag
640 if box_dir>= dir_node_auto then -- unwrap
642 head, nb, b, b_dir = unwrap_dir_node(b, head, box_dir)
644 if b_dir%dir_math_mod==new_dir then
645 -- dir_node の中身が周囲の組方向とあっている
646 return head, nb, b, false
647 else box_dir = b_dir end
649 box_dir = box_dir%dir_math_mod
651 local dnh = getfield(dn, 'value')
652 for x in traverse(dnh) do
653 if has_attr(x, attr_dir)%dir_math_mod == new_dir then
654 setfield(dn, 'value', to_node(node_remove(dnh, x)))
658 node.direct.flush_list(getfield(dn, 'value'))
659 setfield(dn, 'value', nil)
660 db = db or create_dir_node(b, box_dir, new_dir, false)
661 local w = getfield(b, 'width')
662 local h = getfield(b, 'height')
663 local d = getfield(b, 'depth')
664 local dn_w = getfield(db, 'width')
665 local dn_h = getfield(db, 'height')
666 local dn_d = getfield(db, 'depth')
667 nh, nb = insert_before(head, b, db), nil
668 nh, nb = node_remove(nh, b)
669 setfield(b, 'next', nil); setfield(db, 'head', b)
671 return nh, nb, ret, flag
674 process_dir_node = function (hd, gc)
675 local x, new_dir = hd, ltjs.list_dir or dir_yoko
678 if (xid==id_hlist and get_attr_icflag(x)~=PACKED)
679 or xid==id_vlist then
680 hd, x = make_dir_whatsit(hd, x, new_dir, 'process_dir_node:' .. gc)
689 local node_prev = (node.direct~=node) and node.direct.getprev or node.prev
690 local function lastbox_hook()
691 start_time_measure('box_primitive_hook')
692 local bn = tex_nest[tex_nest.ptr].tail
694 local b, head = to_direct(bn), to_direct(tex_nest[tex_nest.ptr].head)
696 if bid==id_hlist or bid==id_vlist then
697 local box_dir = get_box_dir(b, 0)
698 if box_dir>= dir_node_auto then -- unwrap dir_node
699 local p = node_prev(b)
700 local dummy1, dummy2, nb = unwrap_dir_node(b, nil, box_dir)
701 setfield(p, 'next', nb); tex_nest[tex_nest.ptr].tail = to_node(nb)
702 setfield(b, 'next', nil); setfield(b, 'head', nil)
705 local _, wh = get_box_dir(b, 0) -- clean dir_node attached to the box
707 node.direct.flush_list(getfield('value', wh))
708 setfield(wh, 'value', nil)
712 stop_time_measure('box_primitive_hook')
715 luatexja.direction.make_dir_whatsit = make_dir_whatsit
716 luatexja.direction.lastbox_hook = lastbox_hook
719 -- \wd, \ht, \dp の代わり
721 local getbox, setdimen = tex.getbox, tex.setdimen
722 local function get_box_dim_common(key, s, l_dir)
724 local s_dir, wh = get_box_dir(s, dir_yoko)
725 s_dir = s_dir%dir_math_mod
726 if s_dir ~= l_dir then
727 local not_found = true
728 for x in traverse(getfield(wh, 'value')) do
729 if l_dir == has_attr(x, attr_dir)%dir_node_auto then
730 setdimen('ltj@tempdima', getfield(x, key))
731 not_found = false; break
735 local w = getfield(s, 'width')
736 local h = getfield(s, 'height')
737 local d = getfield(s, 'depth')
738 setdimen('ltj@tempdima',
739 dir_node_aux[s_dir][l_dir][key](w,h,d))
742 setdimen('ltj@tempdima', getfield(s, key))
745 local function get_box_dim(key, n)
746 local gt = tex.globaldefs; tex.globaldefs = 0
749 local l_dir = (get_dir_count())%dir_math_mod
751 local b_dir = get_box_dir(s,dir_yoko)
752 if b_dir<dir_node_auto then
753 get_box_dim_common(key, s, l_dir)
754 elseif b_dir%dir_math_mod==l_dir then
755 setdimen('ltj@tempdima', getfield(s, key))
757 get_box_dim_common(key, getlist(s), l_dir)
760 setdimen('ltj@tempdima', 0)
762 tex.sprint(cat_lp, '\\ltj@tempdima')
765 luatexja.direction.get_box_dim = get_box_dim
767 -- return value: (changed dimen of box itself?)
768 local scan_dimen, scan_int = token.scan_dimen, token.scan_int
769 local scan_keyword = token.scan_keyword
770 local function set_box_dim_common(key, s, l_dir)
771 local s_dir, wh = get_box_dir(s, dir_yoko)
772 s_dir = s_dir%dir_math_mod
773 if s_dir ~= l_dir then
775 wh = create_dir_whatsit(getlist(s), 'set_box_dim', s_dir)
776 setfield(s, 'head', wh)
779 local dnh = getfield(wh, 'value')
780 for x in traverse(dnh) do
781 if has_attr(x, attr_dir)%dir_node_auto==l_dir then
786 db = create_dir_node(s, s_dir, l_dir, true)
787 setfield(db, 'next', dnh)
788 setfield(wh, 'value',to_node(db))
790 setfield(db, key, scan_dimen())
793 setfield(s, key, scan_dimen())
795 -- change dimension of dir_nodes which are created "automatically"
797 = getfield(s,'width'), getfield(s, 'height'), getfield(s, 'depth')
798 for x in traverse(getfield(wh, 'value')) do
799 local x_dir = has_attr(x, attr_dir)
800 if x_dir<dir_node_manual then
801 local info = dir_node_aux[s_dir][x_dir%dir_node_auto]
802 setfield(x, 'width', info.width(bw,bh,bd))
803 setfield(x, 'height', info.height(bw,bh,bd))
804 setfield(x, 'depth', info.depth(bw,bh,bd))
811 local function set_box_dim(key)
812 local s = getbox(scan_int()); scan_keyword('=')
814 local l_dir = (get_dir_count())%dir_math_mod
816 local b_dir = get_box_dir(s,dir_yoko)
817 if b_dir<dir_node_auto then
818 set_box_dim_common(key, s, l_dir)
819 elseif b_dir%dir_math_mod == l_dir then
821 setfield(s, key, scan_dimen())
822 if b_dir<dir_node_manual then
823 set_attr(s, attr_dir, b_dir%dir_node_auto + dir_node_manual)
826 local sid, b = getid(s), getlist(s)
827 local info = dir_node_aux[get_box_dir(b,dir_yoko)%dir_math_mod][b_dir%dir_node_auto]
829 = getfield(b,'width'), getfield(b, 'height'), getfield(b, 'depth')
831 = getfield(s,'width'), getfield(s, 'height'), getfield(s, 'depth')
832 if set_box_dim_common(key, b, l_dir) and b_dir<dir_node_manual then
833 -- re-calculate dimension of s, if s is created "automatically"
834 if b_dir<dir_node_manual then
835 setfield(s, 'width', info.width(bw,bh,bd))
836 setfield(s, 'height', info.height(bw,bh,bd))
837 setfield(s, 'depth', info.depth(bw,bh,bd))
843 luatexja.direction.set_box_dim = set_box_dim
847 local getbox = tex.getbox
848 local function get_register_dir(n)
852 local b_dir = get_box_dir(s, dir_yoko)
853 if b_dir<dir_node_auto then
856 local b_dir = get_box_dir(
857 node_next(node_next(node_next(getlist(s)))), dir_yoko)
864 luatexja.direction.get_register_dir = get_register_dir
868 local getbox, setbox, copy_list = tex.getbox, tex.setbox, node.direct.copy_list
870 function luatexja.direction.raise_box()
871 start_time_measure('box_primitive_hook')
872 local list_dir = get_dir_count()
873 local s = getbox('ltj@afbox')
875 local sd = to_direct(s)
876 local box_dir = get_box_dir(sd, dir_yoko)
877 if box_dir%dir_math_mod ~= list_dir then
880 to_node(copy_list(make_dir_whatsit(sd, sd, list_dir, 'box_move')))
881 -- copy_list しないとリストの整合性が崩れる……?
885 stop_time_measure('box_primitive_hook')
889 -- PACKED の hbox から文字を取り出す
890 -- luatexja.jfmglue.check_box などで使用
892 local function glyph_from_packed(h)
894 return (getid(b)==id_kern or (getid(b)==id_whatsit and getsubtype(b)==sid_save) )
895 and node_next(node_next(node_next(b))) or b
897 luatexja.direction.glyph_from_packed = glyph_from_packed
902 local id_adjust = node.id('adjust')
903 function luatexja.direction.check_adjust_direction()
904 start_time_measure('box_primitive_hook')
905 local list_dir = get_adjust_dir_count()
906 local a = tex_nest[tex_nest.ptr].tail
907 local ad = to_direct(a)
908 if a and getid(ad)==id_adjust then
909 local adj_dir = get_box_dir(ad)
910 if list_dir~=adj_dir then
913 'Direction Incompatible',
914 "\\vadjust's argument and outer vlist must have same direction.")
915 node.direct.last_node()
918 stop_time_measure('box_primitive_hook')
924 local id_ins = node.id('ins')
925 local id_rule = node.id('rule')
926 function luatexja.direction.populate_insertion_dir_whatsit()
927 start_time_measure('box_primitive_hook')
928 local list_dir = get_dir_count()
929 local a = tex_nest[tex_nest.ptr].tail
930 local ad = to_direct(a)
931 if a and getid(ad)==id_ins then
932 local h = getfield(ad, 'head')
933 if getid(h)==id_whatsit and
934 getsubtype(h)==sid_user and getfield(h, 'user_id')==DIR then
935 local n = h; h = node_remove(h,h)
938 for box_rule in traverse(h) do
939 if getid(box_rule)<id_rule then
940 h = insert_before(h, box_rule, dir_pool[list_dir]())
943 ensure_tex_attr(attr_dir, 0)
944 setfield(ad, 'head', h)
946 stop_time_measure('box_primitive_hook')
952 local split_dir_whatsit
953 local function dir_adjust_vpack(h, gc)
954 start_time_measure('direction_vpack')
955 local hd = to_direct(h)
956 if gc=='split_keep' then
957 -- supply dir_whatsit
958 hd = create_dir_whatsit_vbox(hd, gc)
959 split_dir_whatsit = hd
960 elseif gc=='split_off' then
961 for bh in traverse_id(id_whatsit, hd) do
962 if getsubtype(bh)==sid_user and getfield(bh, 'user_id')==DIR then
963 ltjs.list_dir = has_attr(bh, attr_dir); break
966 if split_dir_whatsit then
967 -- adjust direction of 'split_keep'
968 set_attr(split_dir_whatsit, attr_dir, ltjs.list_dir)
970 split_dir_whatsit=nil
971 elseif gc=='preamble' then
972 split_dir_whatsit=nil
975 -- hd = process_dir_node(create_dir_whatsit_vbox(hd, gc), gc)
976 -- done in append_to_vpack callback
977 hd = create_dir_whatsit_vbox(hd, gc)
978 split_dir_whatsit=nil
980 stop_time_measure('direction_vpack')
983 ltjb.add_to_callback('vpack_filter',
985 'ltj.direction', 10000)
989 -- supply direction whatsit to the main vertical list "of the next page"
990 local function dir_adjust_pre_output(h, gc)
991 return to_node(create_dir_whatsit_vbox(to_direct(h), gc))
993 ltjb.add_to_callback('pre_output_filter',
994 dir_adjust_pre_output,
995 'ltj.direction', 10000)
997 function luatexja.direction.remove_end_whatsit()
998 local h=tex.lists.page_head
999 if h and (not h.next) and
1000 h.id==id_whatsit and h.subtype==sid_user and
1001 h.user_id == DIR then
1002 tex.lists.page_head = nil
1008 -- append_to_vlist filter
1010 local id_glue = node.id('glue')
1011 local getglue = node.direct.getglue or
1013 return getfield(g,'width'), getfield(g,'stretch'), getfield(g,'shrink'),
1014 getfield(g,'stretch_order'), getfield(g,'shrink_order')
1016 local setglue = luatexja.setglue
1017 local function copy_glue (new_glue, old_glue, subtype, new_w)
1018 setfield(new_glue, 'subtype', subtype)
1019 local w,st,sp,sto,spo = getglue(to_direct(old_glue))
1020 setglue(new_glue, new_w or w, st, sp, sto, spo)
1022 local node_write = node.direct.write
1023 local function dir_adjust_append_vlist(b, loc, prev, mirrored)
1024 local old_b = to_direct(b)
1025 local new_b = loc=='box' and
1026 make_dir_whatsit(old_b, old_b, get_dir_count(), 'append_vlist') or old_b
1028 if prev > -65536000 then
1029 local d = tex.baselineskip.width - prev
1030 - getfield(new_b, mirrored and 'depth' or 'height')
1031 local g = node_new(id_glue)
1032 if d < tex.lineskiplimit then
1033 copy_glue(g, tex.lineskip, 1)
1035 copy_glue(g, tex.baselineskip, 2, d);
1040 tex.prevdepth = getfield(new_b, mirrored and 'height' or 'depth')
1041 return nil -- do nothing on tex side
1043 ltjb.add_to_callback('append_to_vlist_filter',
1044 dir_adjust_append_vlist,
1045 'ltj.direction', 10000)
1048 -- finalize (executed just before \shipout)
1049 -- we supply correct pdfsavematrix nodes etc. inside dir_node
1051 local finalize_inner
1052 local function finalize_dir_node(db,new_dir)
1053 local b = getlist(db)
1055 local w = getfield(b, 'width')
1056 local h = getfield(b, 'height')
1057 local d = getfield(b, 'depth')
1058 local dn_w = getfield(db, 'width')
1059 local dn_h = getfield(db, 'height')
1060 local dn_d = getfield(db, 'depth')
1061 local db_head, db_tail
1062 for _,v in ipairs(dir_node_aux
1063 [get_box_dir(b, dir_yoko)%dir_math_mod][new_dir][getid(b)]) do
1064 local cmd, arg, nn = v[1], v[2]
1066 nn = node_new(id_kern)
1067 setfield(nn, 'kern', arg(w, h, d, dn_w, dn_h, dn_d))
1068 elseif cmd=='whatsit' then
1069 nn = node_new(id_whatsit, arg)
1070 elseif cmd=='rotate' then
1071 nn = node_new(id_whatsit, sid_matrix)
1072 setfield(nn, 'data', arg)
1073 elseif cmd=='box' then
1074 nn = b; setfield(b, 'next', nil)
1075 setfield(nn, 'shift', arg(w, h, d, dn_w, dn_h, dn_d))
1078 insert_after(db_head, db_tail, nn)
1081 setfield(db, 'head', nn)
1082 db_head, db_tail = nn, nn
1087 tex.setattribute(attr_dir, dir_yoko)
1088 local shipout_temp = node_new(id_hlist)
1089 tex.setattribute(attr_dir, 0)
1091 finalize_inner = function (box)
1092 for n in traverse(getlist(box)) do
1093 local nid = getid(n)
1094 if (nid==id_hlist or nid==id_vlist) then
1095 local ndir = get_box_dir(n, dir_yoko)
1096 if ndir>=dir_node_auto then -- n is dir_node
1097 finalize_dir_node(n, ndir%dir_math_mod)
1104 local getbox = tex.getbox
1105 local setbox, copy = node.direct.setbox, node.direct.copy
1106 local lua_mem_kb = 0
1107 function luatexja.direction.finalize()
1108 local a = to_direct(tex.getbox("AtBeginShipoutBox"))
1109 local a_dir = get_box_dir(a, dir_yoko)
1110 if a_dir~=dir_yoko then
1111 local b = create_dir_node(a, a_dir, dir_yoko, false)
1112 setfield(b, 'head', a); a = b
1114 setfield(shipout_temp, 'head', a)
1115 finalize_inner(shipout_temp)
1116 setbox('global', "AtBeginShipoutBox", copy(getlist(shipout_temp)))
1117 setfield(shipout_temp, 'head',nil)
1120 --local m = collectgarbage('count')
1121 --if m>lua_mem_kb+20480 then
1122 -- collectgarbage(); lua_mem_kb = collectgarbage('count')
1124 --print('Lua Memory Usage', lua_mem_kb)