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 Dnode = node.direct or node
14 local nullfunc = function (n) return n end
15 local to_node = (Dnode ~= node) and Dnode.tonode or nullfunc
16 local to_direct = (Dnode ~= node) and Dnode.todirect or nullfunc
17 local has_attr = Dnode.has_attribute
18 local set_attr = Dnode.set_attribute
19 local insert_before = Dnode.insert_before
20 local insert_after = Dnode.insert_after
21 local getid = (Dnode ~= node) and Dnode.getid or function(n) return n.id end
22 local getsubtype = (Dnode ~= node) and Dnode.getsubtype or function(n) return n.subtype end
23 local getlist = (Dnode ~= node) and Dnode.getlist or function(n) return n.head end
24 local setfield = (Dnode ~= node) and Dnode.setfield or function(n, i, c) n[i] = c end
25 local getfield = (Dnode ~= node) and Dnode.getfield or function(n, i) return n[i] end
26 local node_new = Dnode.new
27 local node_tail = Dnode.tail
28 local node_free = Dnode.free
29 local node_remove = Dnode.remove
30 local node_next = (Dnode ~= node) and Dnode.getnext or node.next
31 local traverse = Dnode.traverse
32 local traverse_id = Dnode.traverse_id
33 local start_time_measure, stop_time_measure
34 = ltjb.start_time_measure, ltjb.stop_time_measure
37 local id_kern = node.id('kern')
38 local id_hlist = node.id('hlist')
39 local id_vlist = node.id('vlist')
40 local id_whatsit = node.id('whatsit')
41 local sid_save = node.subtype('pdf_save')
42 local sid_restore = node.subtype('pdf_restore')
43 local sid_matrix = node.subtype('pdf_setmatrix')
44 local sid_user = node.subtype('user_defined')
46 local tex_nest = tex.nest
47 local tex_getcount = tex.getcount
48 local ensure_tex_attr = ltjb.ensure_tex_attr
49 local PROCESSED = luatexja.icflag_table.PROCESSED
50 local PROCESSED_BEGIN_FLAG = luatexja.icflag_table.PROCESSED_BEGIN_FLAG
51 local PACKED = luatexja.icflag_table.PACKED
52 local DIR = luatexja.userid_table.DIR
53 local dir_tate = luatexja.dir_table.dir_tate
54 local dir_yoko = luatexja.dir_table.dir_yoko
55 local dir_dtou = luatexja.dir_table.dir_dtou
56 local dir_utod = luatexja.dir_table.dir_utod
57 local dir_math_mod = luatexja.dir_table.dir_math_mod
58 local dir_node_auto = luatexja.dir_table.dir_node_auto
59 local dir_node_manual = luatexja.dir_table.dir_node_manual
60 local function get_attr_icflag(p)
61 return (has_attr(p, attr_icflag) or 0) % PROCESSED_BEGIN_FLAG
68 local node_copy = Dnode.copy
70 for _,i in pairs({dir_tate, dir_yoko, dir_dtou, dir_utod}) do
71 local w = node_new(id_whatsit, sid_user)
72 set_attr(w, attr_dir, i)
73 setfield(w, 'user_id', DIR)
74 setfield(w, 'type', 110)
75 setfield(w, 'next', nil)
76 dir_pool[i] = function () return node_copy(w) end
81 local function adjust_badness(hd)
82 if not node_next(hd) and getid(hd)==id_whatsit and getsubtype(hd)==sid_user
83 and getfield(hd, 'user_id')==DIR then
84 -- avoid double whatsit
85 luatexja.global_temp=tex.globaldefs; tex.globaldefs=0
86 luatexja.hbadness_temp=tex.hbadness; tex.hbadness=10000
87 luatexja.vbadness_temp=tex.vbadness; tex.vbadness=10000
89 luatexja.global_temp = nil
90 luatexja.hbadness_temp=nil
91 luatexja.vbadness_temp=nil
95 local get_dir_count, get_adjust_dir_count
97 local function get_dir_count_inner(h)
99 if h.id==id_whatsit and h.subtype==sid_user and h.user_id==DIR then
100 local ic = node.has_attribute(h, attr_icflag) or 0
101 return (ic<PROCESSED_BEGIN_FLAG)
102 and (node.has_attribute(h,attr_dir)%dir_node_auto) or 0
110 function get_dir_count()
111 for i=tex_nest.ptr, 1, -1 do
112 local h = tex_nest[i].head.next
114 local t = get_dir_count_inner(h)
115 if t~=0 then return t end
118 return page_direction
120 function get_adjust_dir_count()
121 for i=tex_nest.ptr, 1, -1 do
122 local v = tex_nest[i]
123 local h, m = v.head.next, v.mode
124 if abs(m)== ltjs.vmode and h then
125 local t = get_dir_count_inner(h)
126 if t~=0 then return t end
129 return page_direction
131 luatexja.direction.get_dir_count = get_dir_count
132 luatexja.direction.get_adjust_dir_count = get_adjust_dir_count
136 -- \tate, \yoko,\dtou, \utod
138 local node_next = node.next
139 local node_set_attr = node.set_attribute
140 local node_traverse = node.traverse
141 local STCK = luatexja.userid_table.STCK
142 local IHB = luatexja.userid_table.IHB
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
152 if p.subtype==sid_user then
155 flag = 1; w = w or p -- found
156 elseif not(uid==IHB or uid==STCK) then
157 flag = 0; break -- error
166 if flag==1 then -- dir_whatsit already exists
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 = to_direct(tex_nest[lv].head)
184 local w = dir_pool[v]()
185 insert_after(h, h, w)
186 tex_nest[lv].tail = to_node(node_tail(w))
187 ensure_tex_attr(attr_icflag, 0)
188 ensure_tex_attr(attr_dir, 0)
191 local function set_list_direction(v, name)
192 local lv = tex_nest.ptr
194 v,name = get_dir_count(), nil
195 if lv>=1 and abs(tex_nest[lv-1].mode) == ltjs.mmode and v == dir_tate then
199 v,name = get_adjust_dir_count(), nil
201 if tex.currentgrouptype==6 then
204 "You can't use `\\" .. name .. "' in an align",
205 "To change direction in an align, \n"
206 .. "you shold use \\hbox or \\vbox.")
208 local h = (lv==0) and tex.lists.page_head or tex_nest[lv].head.next
209 local flag,w = test_list(h,lv)
211 if lv==0 and not page_direction then
212 page_direction = v -- for first call of \yoko (in luatexja-core.sty)
216 "Use `\\" .. tostring(name) .. "' at top of list",
217 'Direction change command by LuaTeX-ja is available\n'
218 .. 'only when the current list is null.')
221 node_set_attr(w, attr_dir, v)
222 if lv==0 then page_direction = v end
224 Dnode.write(dir_pool[v]())
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 luatexbase.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 luatexbase.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 for bh in traverse_id(id_whatsit, bh) do
492 if getsubtype(bh)==sid_user and getfield(bh, 'user_id')==DIR then
494 dir = (dir==0) and has_attr(bh, attr_dir) or dir
498 -- if bh and getid(bh)==id_whatsit
499 -- and getsubtype(bh)==sid_user and getfield(bh, 'user_id')==DIR then
501 -- dir = (dir==0) and has_attr(bh, attr_dir) or dir
503 -- bh = node_next(bh)
505 stop_time_measure('get_box_dir')
506 return (dir==0 and default or dir), c
510 local getbox = tex.getbox
512 function luatexja.direction.unbox_check_dir(is_copy)
513 start_time_measure('box_primitive_hook')
514 local list_dir = get_dir_count()%dir_math_mod
515 local b = getbox(tex_getcount('ltj@tempcnta'))
517 local box_dir = get_box_dir(to_direct(b), dir_yoko)
518 if box_dir%dir_math_mod ~= list_dir then
521 "Incompatible direction list can't be unboxed",
522 'I refuse to unbox a box in differrent direction.')
523 tex.sprint(cat_lp, '\\@gobbletwo')
526 local bd = to_direct(b)
527 local hd = getlist(bd)
530 if getid(hd)==id_whatsit and getsubtype(hd)==sid_user
531 and getfield(hd, 'user_id')==DIR then
533 nh, hd = node_remove(nh, hd)
534 if is_copy and (not dir_backup) then
536 setfield(dir_backup, 'next', nil)
544 setfield(bd, 'head', nh)
547 if luatexja.global_temp and tex.globaldefs~=luatexja.global_temp then
548 tex.globaldefs = luatexja.global_temp
550 stop_time_measure('box_primitive_hook')
552 function luatexja.direction.uncopy_restore_whatsit()
553 local b = getbox(tex_getcount('ltj@tempcnta'))
555 local bd = to_direct(b)
557 setfield(dir_backup, 'next', getlist(bd))
558 setfield(bd, 'head', dir_backup)
565 -- dir_node に包まれている「本来の中身」を取り出し,
567 local function unwrap_dir_node(b, head, box_dir)
568 -- b: dir_node, head: the head of list, box_dir:
569 -- return values are (new head), (next of b), (contents), (dir of contents)
570 local bh = getlist(b)
573 nh = insert_before(head, b, bh)
574 nh, nb = node_remove(nh, b)
575 setfield(b, 'next', nil)
578 local shift_old, b_dir, wh = nil, get_box_dir(bh, 0)
580 Dnode.flush_list(getfield(wh, 'value'))
581 setfield(wh, 'value', nil)
583 return nh, nb, bh, b_dir
586 -- is_manual: 寸法変更に伴うものか?
587 local function create_dir_node(b, b_dir, new_dir, is_manual)
588 local info = dir_node_aux[b_dir%dir_math_mod][new_dir%dir_math_mod]
589 local w = getfield(b, 'width')
590 local h = getfield(b, 'height')
591 local d = getfield(b, 'depth')
592 local db = node_new(getid(b)) -- dir_node
593 set_attr(db, attr_dir,
594 new_dir + (is_manual and dir_node_manual or dir_node_auto))
595 set_attr(db, attr_icflag, PROCESSED)
596 set_attr(b, attr_icflag, PROCESSED)
597 ensure_tex_attr(attr_dir, 0)
598 ensure_tex_attr(attr_icflag, 0)
599 setfield(db, 'dir', getfield(b, 'dir'))
600 setfield(db, 'shift', 0)
601 setfield(db, 'width', info.width(w,h,d))
602 setfield(db, 'height', info.height(w,h,d))
603 setfield(db, 'depth', info.depth(w,h,d))
608 local make_dir_whatsit, process_dir_node
610 make_dir_whatsit = function (head, b, new_dir, origin)
611 new_dir = new_dir%dir_math_mod
612 -- head: list head, b: box
613 -- origin: コール元 (for debug)
614 -- return value: (new head), (next of b), (new b), (is_b_dir_node)
615 -- (new b): b か dir_node に被せられた b
616 local bh = getlist(b)
617 local box_dir, dn = get_box_dir(b, ltjs.list_dir)
618 -- 既に b の中身にあるwhatsit
620 if box_dir%dir_math_mod==new_dir then
621 if box_dir>=dir_node_auto then
622 -- dir_node としてカプセル化されている
623 local _, dnc = get_box_dir(b, 0)
624 if dnc then -- free all other dir_node
625 Dnode.flush_list(getfield(dnc, 'value'))
626 setfield(dnc, 'value', nil)
628 set_attr(b, attr_dir, box_dir%dir_math_mod + dir_node_auto)
629 return head, node_next(b), b, true
631 -- 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
632 return head, node_next(b), b, false
636 local nh, nb, ret, flag
637 if box_dir>= dir_node_auto then -- unwrap
639 head, nb, b, b_dir = unwrap_dir_node(b, head, box_dir)
641 if b_dir%dir_math_mod==new_dir then
642 -- dir_node の中身が周囲の組方向とあっている
643 return head, nb, b, false
644 else box_dir = b_dir end
646 box_dir = box_dir%dir_math_mod
648 local dnh = getfield(dn, 'value')
649 for x in traverse(dnh) do
650 if has_attr(x, attr_dir)%dir_math_mod == new_dir then
651 setfield(dn, 'value', to_node(node_remove(dnh, x)))
655 Dnode.flush_list(getfield(dn, 'value'))
656 setfield(dn, 'value', nil)
657 db = db or create_dir_node(b, box_dir, new_dir, false)
658 local w = getfield(b, 'width')
659 local h = getfield(b, 'height')
660 local d = getfield(b, 'depth')
661 local dn_w = getfield(db, 'width')
662 local dn_h = getfield(db, 'height')
663 local dn_d = getfield(db, 'depth')
664 nh, nb = insert_before(head, b, db), nil
665 nh, nb = node_remove(nh, b)
666 setfield(b, 'next', nil); setfield(db, 'head', b)
668 return nh, nb, ret, flag
671 process_dir_node = function (hd, gc)
672 local x, new_dir = hd, ltjs.list_dir or dir_yoko
675 if (xid==id_hlist and get_attr_icflag(x)~=PACKED)
676 or xid==id_vlist then
677 hd, x = make_dir_whatsit(hd, x, new_dir, 'process_dir_node:' .. gc)
686 local node_prev = (Dnode~=node) and Dnode.getprev or node.prev
687 local function lastbox_hook()
688 start_time_measure('box_primitive_hook')
689 local bn = tex_nest[tex_nest.ptr].tail
691 local b, head = to_direct(bn), to_direct(tex_nest[tex_nest.ptr].head)
693 if bid==id_hlist or bid==id_vlist then
694 local box_dir = get_box_dir(b, 0)
695 if box_dir>= dir_node_auto then -- unwrap dir_node
696 local p = node_prev(b)
697 local dummy1, dummy2, nb = unwrap_dir_node(b, nil, box_dir)
698 setfield(p, 'next', nb); tex_nest[tex_nest.ptr].tail = to_node(nb)
699 setfield(b, 'next', nil); setfield(b, 'head', nil)
702 local _, wh = get_box_dir(b, 0) -- clean dir_node attached to the box
704 Dnode.flush_list(getfield('value', wh))
705 setfield(wh, 'value', nil)
709 stop_time_measure('box_primitive_hook')
712 luatexja.direction.make_dir_whatsit = make_dir_whatsit
713 luatexja.direction.lastbox_hook = lastbox_hook
716 -- \wd, \ht, \dp の代わり
718 local getbox, setdimen = tex.getbox, tex.setdimen
719 local function get_box_dim_common(key, s, l_dir)
721 local s_dir, wh = get_box_dir(s, dir_yoko)
722 s_dir = s_dir%dir_math_mod
723 if s_dir ~= l_dir then
724 local not_found = true
725 for x in traverse(getfield(wh, 'value')) do
726 if l_dir == has_attr(x, attr_dir)%dir_node_auto then
727 setdimen('ltj@tempdima', getfield(x, key))
728 not_found = false; break
732 local w = getfield(s, 'width')
733 local h = getfield(s, 'height')
734 local d = getfield(s, 'depth')
735 setdimen('ltj@tempdima',
736 dir_node_aux[s_dir][l_dir][key](w,h,d))
739 setdimen('ltj@tempdima', getfield(s, key))
742 local function get_box_dim(key, n)
743 local gt = tex.globaldefs; tex.globaldefs = 0
746 local l_dir = (get_dir_count())%dir_math_mod
748 local b_dir = get_box_dir(s,dir_yoko)
749 if b_dir<dir_node_auto then
750 get_box_dim_common(key, s, l_dir)
751 elseif b_dir%dir_math_mod==l_dir then
752 setdimen('ltj@tempdima', getfield(s, key))
754 get_box_dim_common(key, getlist(s), l_dir)
757 setdimen('ltj@tempdima', 0)
761 luatexja.direction.get_box_dim = get_box_dim
763 -- return value: (changed dimen of box itself?)
764 local function set_box_dim_common(key, s, l_dir)
765 local s_dir, wh = get_box_dir(s, dir_yoko)
766 s_dir = s_dir%dir_math_mod
767 if s_dir ~= l_dir then
769 wh = create_dir_whatsit(getlist(s), 'set_box_dim', s_dir)
770 setfield(s, 'head', wh)
773 local dnh = getfield(wh, 'value')
774 for x in traverse(dnh) do
775 if has_attr(x, attr_dir)%dir_node_auto==l_dir then
780 db = create_dir_node(s, s_dir, l_dir, true)
781 setfield(db, 'next', dnh)
782 setfield(wh, 'value',to_node(db))
784 setfield(db, key, tex.getdimen('ltj@tempdima'))
787 setfield(s, key, tex.getdimen('ltj@tempdima'))
789 -- change dimension of dir_nodes which are created "automatically"
791 = getfield(s,'width'), getfield(s, 'height'), getfield(s, 'depth')
792 for x in traverse(getfield(wh, 'value')) do
793 local x_dir = has_attr(x, attr_dir)
794 if x_dir<dir_node_manual then
795 local info = dir_node_aux[s_dir][x_dir%dir_node_auto]
796 setfield(x, 'width', info.width(bw,bh,bd))
797 setfield(x, 'height', info.height(bw,bh,bd))
798 setfield(x, 'depth', info.depth(bw,bh,bd))
805 local function set_box_dim(key)
806 local n = tex_getcount('ltj@tempcnta')
809 local l_dir = (get_dir_count())%dir_math_mod
811 local b_dir = get_box_dir(s,dir_yoko)
812 if b_dir<dir_node_auto then
813 set_box_dim_common(key, s, l_dir)
814 elseif b_dir%dir_math_mod == l_dir then
816 setfield(s, key, tex.getdimen('ltj@tempdima'))
817 if b_dir<dir_node_manual then
818 set_attr(s, attr_dir, b_dir%dir_node_auto + dir_node_manual)
821 local sid, b = getid(s), getlist(s)
822 local info = dir_node_aux[get_box_dir(b,dir_yoko)%dir_math_mod][b_dir%dir_node_auto]
824 = getfield(b,'width'), getfield(b, 'height'), getfield(b, 'depth')
826 = getfield(s,'width'), getfield(s, 'height'), getfield(s, 'depth')
827 if set_box_dim_common(key, b, l_dir) and b_dir<dir_node_manual then
828 -- re-calculate dimension of s, if s is created "automatically"
829 if b_dir<dir_node_manual then
830 setfield(s, 'width', info.width(bw,bh,bd))
831 setfield(s, 'height', info.height(bw,bh,bd))
832 setfield(s, 'depth', info.depth(bw,bh,bd))
838 luatexja.direction.set_box_dim = set_box_dim
842 local getbox = tex.getbox
843 local function get_register_dir(n)
847 local b_dir = get_box_dir(s, dir_yoko)
848 if b_dir<dir_node_auto then
851 local b_dir = get_box_dir(
852 node_next(node_next(node_next(getlist(s)))), dir_yoko)
859 luatexja.direction.get_register_dir = get_register_dir
863 local getbox, setbox, copy_list = tex.getbox, tex.setbox, Dnode.copy_list
865 function luatexja.direction.raise_box()
866 start_time_measure('box_primitive_hook')
867 local list_dir = get_dir_count()
868 local s = getbox('ltj@afbox')
870 local sd = to_direct(s)
871 local box_dir = get_box_dir(sd, dir_yoko)
872 if box_dir%dir_math_mod ~= list_dir then
875 to_node(copy_list(make_dir_whatsit(sd, sd, list_dir, 'box_move')))
876 -- copy_list しないとリストの整合性が崩れる……?
880 stop_time_measure('box_primitive_hook')
884 -- PACKED の hbox から文字を取り出す
885 -- luatexja.jfmglue.check_box などで使用
887 local function glyph_from_packed(h)
889 return (getid(b)==id_kern or (getid(b)==id_whatsit and getsubtype(b)==sid_save) )
890 and node_next(node_next(node_next(b))) or b
892 luatexja.direction.glyph_from_packed = glyph_from_packed
897 local id_adjust = node.id('adjust')
898 function luatexja.direction.check_adjust_direction()
899 start_time_measure('box_primitive_hook')
900 local list_dir = get_adjust_dir_count()
901 local a = tex_nest[tex_nest.ptr].tail
902 local ad = to_direct(a)
903 if a and getid(ad)==id_adjust then
904 local adj_dir = get_box_dir(ad)
905 if list_dir~=adj_dir then
908 'Direction Incompatible',
909 "\\vadjust's argument and outer vlist must have same direction.")
913 stop_time_measure('box_primitive_hook')
919 local id_ins = node.id('ins')
920 local id_rule = node.id('rule')
921 function luatexja.direction.populate_insertion_dir_whatsit()
922 start_time_measure('box_primitive_hook')
923 local list_dir = get_dir_count()
924 local a = tex_nest[tex_nest.ptr].tail
925 local ad = to_direct(a)
926 if a and getid(ad)==id_ins then
927 local h = getfield(ad, 'head')
928 if getid(h)==id_whatsit and
929 getsubtype(h)==sid_user and getfield(h, 'user_id')==DIR then
930 local n = h; h = node_remove(h,h)
933 for box_rule in traverse(h) do
934 if getid(box_rule)<id_rule then
935 h = insert_before(h, box_rule, dir_pool[list_dir]())
938 ensure_tex_attr(attr_dir, 0)
939 setfield(ad, 'head', h)
941 stop_time_measure('box_primitive_hook')
947 local split_dir_whatsit
948 local function dir_adjust_vpack(h, gc)
949 start_time_measure('direction_vpack')
950 local hd = to_direct(h)
951 if gc=='split_keep' then
952 -- supply dir_whatsit
953 hd = create_dir_whatsit_vbox(hd, gc)
954 split_dir_whatsit = hd
955 elseif gc=='split_off' then
956 for bh in traverse_id(id_whatsit, hd) do
957 if getsubtype(bh)==sid_user and getfield(bh, 'user_id')==DIR then
958 ltjs.list_dir = has_attr(bh, attr_dir); break
963 -- if bh and getid(bh)==id_whatsit
964 -- and getsubtype(bh)==sid_user and getfield(bh, 'user_id')==DIR then
965 -- ltjs.list_dir = has_attr(bh, attr_dir); break
967 -- bh = node_next(bh)
969 if split_dir_whatsit then
970 -- adjust direction of 'split_keep'
971 set_attr(split_dir_whatsit, attr_dir, ltjs.list_dir)
973 split_dir_whatsit=nil
974 elseif gc=='preamble' then
975 split_dir_whatsit=nil
978 hd = process_dir_node(create_dir_whatsit_vbox(hd, gc), gc)
979 split_dir_whatsit=nil
981 stop_time_measure('direction_vpack')
984 luatexbase.add_to_callback('vpack_filter',
986 'ltj.direction', 10000)
990 -- supply direction whatsit to the main vertical list "of the next page"
991 local function dir_adjust_pre_output(h, gc)
992 return to_node(create_dir_whatsit_vbox(to_direct(h), gc))
994 luatexbase.add_to_callback('pre_output_filter',
995 dir_adjust_pre_output,
996 'ltj.direction', 10000)
998 function luatexja.direction.remove_end_whatsit()
999 local h=tex.lists.page_head
1000 if h and (not h.next) and
1001 h.id==id_whatsit and h.subtype==sid_user and
1002 h.user_id == DIR then
1003 tex.lists.page_head = nil
1011 local function dir_adjust_buildpage(info)
1013 local head = to_direct(tex.lists.contrib_head)
1015 head = make_dir_whatsit(head,
1019 tex.lists.contrib_head = to_node(head)
1023 luatexbase.add_to_callback('buildpage_filter',
1024 dir_adjust_buildpage,
1025 'ltj.direction', 10000)
1028 -- finalize (executed just before \shipout)
1029 -- we supply correct pdfsavematrix nodes etc. inside dir_node
1031 local finalize_inner
1032 local function finalize_dir_node(db,new_dir)
1033 local b = getlist(db)
1035 local w = getfield(b, 'width')
1036 local h = getfield(b, 'height')
1037 local d = getfield(b, 'depth')
1038 local dn_w = getfield(db, 'width')
1039 local dn_h = getfield(db, 'height')
1040 local dn_d = getfield(db, 'depth')
1041 local db_head, db_tail
1042 for _,v in ipairs(dir_node_aux
1043 [get_box_dir(b, dir_yoko)%dir_math_mod][new_dir][getid(b)]) do
1044 local cmd, arg, nn = v[1], v[2]
1046 nn = node_new(id_kern)
1047 setfield(nn, 'kern', arg(w, h, d, dn_w, dn_h, dn_d))
1048 elseif cmd=='whatsit' then
1049 nn = node_new(id_whatsit, arg)
1050 elseif cmd=='rotate' then
1051 nn = node_new(id_whatsit, sid_matrix)
1052 setfield(nn, 'data', arg)
1053 elseif cmd=='box' then
1054 nn = b; setfield(b, 'next', nil)
1055 setfield(nn, 'shift', arg(w, h, d, dn_w, dn_h, dn_d))
1058 insert_after(db_head, db_tail, nn)
1061 setfield(db, 'head', nn)
1062 db_head, db_tail = nn, nn
1067 tex.setattribute(attr_dir, dir_yoko)
1068 local shipout_temp = node_new(id_hlist)
1069 tex.setattribute(attr_dir, 0)
1071 finalize_inner = function (box)
1072 for n in traverse(getlist(box)) do
1073 local nid = getid(n)
1074 if (nid==id_hlist or nid==id_vlist) then
1075 local ndir = get_box_dir(n, dir_yoko)
1076 if ndir>=dir_node_auto then -- n is dir_node
1077 finalize_dir_node(n, ndir%dir_math_mod)
1084 local getbox = tex.getbox
1085 local setbox, copy = Dnode.setbox, Dnode.copy
1086 local lua_mem_kb = 0
1087 function luatexja.direction.finalize()
1088 local a = to_direct(tex.getbox("AtBeginShipoutBox"))
1089 local a_dir = get_box_dir(a, dir_yoko)
1090 if a_dir~=dir_yoko then
1091 local b = create_dir_node(a, a_dir, dir_yoko, false)
1092 setfield(b, 'head', a); a = b
1094 setfield(shipout_temp, 'head', a)
1095 finalize_inner(shipout_temp)
1096 setbox('global', "AtBeginShipoutBox", copy(getlist(shipout_temp)))
1097 setfield(shipout_temp, 'head',nil)
1100 --local m = collectgarbage('count')
1101 --if m>lua_mem_kb+20480 then
1102 -- collectgarbage(); lua_mem_kb = collectgarbage('count')
1104 --print('Lua Memory Usage', lua_mem_kb)