local attr_icflag = luatexbase.attributes['ltj@icflag']
local cat_lp = luatexbase.catcodetables['latex-package']
-local Dnode = node.direct or node
-local nullfunc = function (n) return n end
-local to_node = (Dnode ~= node) and Dnode.tonode or nullfunc
-local to_direct = (Dnode ~= node) and Dnode.todirect or nullfunc
-local has_attr = Dnode.has_attribute
-local set_attr = Dnode.set_attribute
-local insert_before = Dnode.insert_before
-local insert_after = Dnode.insert_after
-local getid = (Dnode ~= node) and Dnode.getid or function(n) return n.id end
-local getsubtype = (Dnode ~= node) and Dnode.getsubtype or function(n) return n.subtype end
-local getlist = (Dnode ~= node) and Dnode.getlist or function(n) return n.head end
-local setfield = (Dnode ~= node) and Dnode.setfield or function(n, i, c) n[i] = c end
-local getfield = (Dnode ~= node) and Dnode.getfield or function(n, i) return n[i] end
-local node_new = Dnode.new
-local node_tail = Dnode.tail
-local node_free = Dnode.free
-local node_remove = Dnode.remove
-local node_next = (Dnode ~= node) and Dnode.getnext or node.next
-local traverse = Dnode.traverse
-local traverse_id = Dnode.traverse_id
+local to_node = node.direct.tonode
+local to_direct = node.direct.todirect
+local has_attr = node.direct.has_attribute
+local set_attr = node.direct.set_attribute
+local insert_before = node.direct.insert_before
+local insert_after = node.direct.insert_after
+local getid = node.direct.getid
+local getsubtype = node.direct.getsubtype
+local getlist = node.direct.getlist
+local setfield = node.direct.setfield
+local getfield = node.direct.getfield
+local node_new = node.direct.new
+local node_tail = node.direct.tail
+local node_free = node.direct.free
+local node_remove = node.direct.remove
+local node_next = node.direct.getnext
+local traverse = node.direct.traverse
+local traverse_id = node.direct.traverse_id
local start_time_measure, stop_time_measure
= ltjb.start_time_measure, ltjb.stop_time_measure
local abs = math.abs
local tex_nest = tex.nest
local tex_getcount = tex.getcount
-local tex_set_attr = tex.setattribute
+local ensure_tex_attr = ltjb.ensure_tex_attr
local PROCESSED = luatexja.icflag_table.PROCESSED
local PROCESSED_BEGIN_FLAG = luatexja.icflag_table.PROCESSED_BEGIN_FLAG
local PACKED = luatexja.icflag_table.PACKED
local page_direction
--
+local dir_pool
+do
+ local node_copy = node.direct.copy
+ dir_pool = {}
+ for _,i in pairs({dir_tate, dir_yoko, dir_dtou, dir_utod}) do
+ local w = node_new(id_whatsit, sid_user)
+ set_attr(w, attr_dir, i)
+ setfield(w, 'user_id', DIR)
+ setfield(w, 'type', 110)
+ setfield(w, 'next', nil)
+ dir_pool[i] = function () return node_copy(w) end
+ end
+end
+
+--
local function adjust_badness(hd)
if not node_next(hd) and getid(hd)==id_whatsit and getsubtype(hd)==sid_user
and getfield(hd, 'user_id')==DIR then
end
end
function get_dir_count()
- for i=tex_nest.ptr, 1, -1 do
- local h = tex_nest[i].head.next
- if h then
- local t = get_dir_count_inner(h)
- if t~=0 then return t end
- end
- end
- return page_direction
+ for i=tex_nest.ptr, 1, -1 do
+ local h = tex_nest[i].head.next
+ if h then
+ local t = get_dir_count_inner(h)
+ if t~=0 then return t end
+ end
+ end
+ return page_direction
end
function get_adjust_dir_count()
for i=tex_nest.ptr, 1, -1 do
local node_traverse = node.traverse
local STCK = luatexja.userid_table.STCK
local IHB = luatexja.userid_table.IHB
+ local id_local = node.id('local_par')
local function test_list(h, lv)
if not h then
local w
for p in node_traverse(h) do
if p.id==id_whatsit then
- if p.subtype==sid_user then
+ local ps = p.subtype
+ if ps==sid_user then
local uid= p.user_id
if uid==DIR then
flag = 1; w = w or p -- found
elseif not(uid==IHB or uid==STCK) then
flag = 0; break -- error
end
- else
- flag = 0; break
end
- else
+ elseif p.id~=id_local then
flag = 0; break
end
end
end
end
end
+ local node_next_node, node_tail_node = node.next, node.tail
+ local insert_after_node = node.insert_after
function luatexja.direction.set_list_direction_hook(v)
local lv = tex_nest.ptr -- must be >= 1
if not v then
elseif v=='adj' then
v = get_adjust_dir_count()
end
- local h = to_direct(tex_nest[lv].head)
- local w = node_new(id_whatsit, sid_user)
- setfield(w, 'next', nil)
- setfield(w, 'user_id', DIR)
- setfield(w, 'type', 110)
- set_attr(w, attr_dir, v)
- insert_after(h, h, w)
- tex_nest[lv].tail = to_node(node_tail(w))
- tex_set_attr('global', attr_icflag, 0)
- tex_set_attr('global', attr_dir, 0)
+ local h = tex_nest[lv].head
+ local hn = node.next(h)
+ hn = (hn and hn.id==id_local) and hn or h
+ local w = to_node(dir_pool[v]())
+ insert_after_node(h, hn, w)
+ tex_nest[lv].tail = node_tail_node(w)
+ ensure_tex_attr(attr_icflag, 0)
+ ensure_tex_attr(attr_dir, 0)
end
local function set_list_direction(v, name)
elseif v=='adj' then
v,name = get_adjust_dir_count(), nil
end
+ local current_nest = tex_nest[lv]
if tex.currentgrouptype==6 then
ltjb.package_error(
'luatexja',
"You can't use `\\" .. name .. "' in an align",
- "To change direction in an align, \n"
- .. "you shold use \\hbox or \\vbox.")
+ "To change the direction in an align, \n"
+ .. "you shold use \\hbox or \\vbox.")
+ elseif current_nest.mode == ltjs.hmode or abs(current_nest.mode) == ltjs.mmode then
+ ltjb.package_error(
+ 'luatexja',
+ "Improper `\\" .. name .. "'",
+ 'You cannot change the direction in unrestricted horizontal mode \n'
+ .. 'nor math modes.')
else
- local h = (lv==0) and tex.lists.page_head or tex_nest[lv].head.next
+ local h = (lv==0) and tex.lists.page_head or current_nest.head.next
local flag,w = test_list(h,lv)
if flag==0 then
if lv==0 and not page_direction then
elseif flag==1 then
node_set_attr(w, attr_dir, v)
if lv==0 then page_direction = v end
- else
- local w = node_new(id_whatsit, sid_user)
- setfield(w, 'next', nil)
- setfield(w, 'user_id', DIR)
- setfield(w, 'type', 110)
- set_attr(w, attr_dir, v)
- Dnode.write(w)
- if lv==0 then page_direction = v end
+ elseif lv==0 then
+ page_direction = v
+ else -- flag == 2: need to create dir whatsit.
+ local h = current_nest.head
+ local hn = node.next(h)
+ hn = (hn and hn.id==id_local) and hn or h
+ local w = to_node(dir_pool[v]())
+ insert_after_node(h,hn,w)
+ current_nest.tail = node_tail_node(w)
end
- tex_set_attr('global', attr_icflag, 0)
+ ensure_tex_attr(attr_icflag, 0)
end
- tex_set_attr('global', attr_dir, 0)
+ ensure_tex_attr(attr_dir, 0)
end
luatexja.direction.set_list_direction = set_list_direction
end
getsubtype(hd)==sid_user and getfield(hd, 'user_id')==DIR then
set_attr(hd, attr_icflag,
get_attr_icflag(hd) + PROCESSED_BEGIN_FLAG)
- tex_set_attr('global', attr_icflag, 0)
+ local n =node_next(hd)
+ if n then
+ set_attr(n, attr_icflag,
+ get_attr_icflag(n) + PROCESSED_BEGIN_FLAG)
+ end
+ ensure_tex_attr(attr_icflag, 0)
return hd
else
- local w = node_new(id_whatsit, sid_user)
+ local w = dir_pool[new_dir]()
setfield(w, 'next', hd)
- setfield(w, 'user_id', DIR)
- setfield(w, 'type', 110)
- set_attr(w, attr_dir, new_dir)
set_attr(w, attr_icflag, PROCESSED_BEGIN_FLAG)
set_attr(hd, attr_icflag,
- (has_attr(hd, attr_icflag) or 0)%PROCESSED_BEGIN_FLAG
- + PROCESSED_BEGIN_FLAG)
- tex_set_attr('global', attr_dir, 0)
- tex_set_attr('global', attr_icflag, 0)
+ get_attr_icflag(hd) + PROCESSED_BEGIN_FLAG)
+ ensure_tex_attr(attr_icflag, 0)
+ ensure_tex_attr(attr_dir, 0)
return w
end
end
-- hpack_filter, vpack_filter, post_line_break_filter
-- の結果を組方向を明示するため,先頭に dir_node を設置
+local get_box_dir
do
local function create_dir_whatsit_hpack(h, gc)
local hd = to_direct(h)
- if gc=='fin_row' or gc == 'preamble' then
+ if gc=='fin_row' then
if hd then
+ for p in traverse_id(15, hd) do -- unset
+ if get_box_dir(p, 0)==0 then
+ setfield(p, 'head', create_dir_whatsit(getlist(p), 'fin_row', ltjs.list_dir))
+ end
+ end
set_attr(hd, attr_icflag, PROCESSED_BEGIN_FLAG)
- tex_set_attr('global', attr_icflag, 0)
+ ensure_tex_attr(attr_icflag, 0)
end
return h
+ elseif gc == 'preamble' then
else
adjust_badness(hd)
return to_node(create_dir_whatsit(hd, gc, ltjs.list_dir))
end
end
- luatexbase.add_to_callback('hpack_filter',
+ ltjb.add_to_callback('hpack_filter',
create_dir_whatsit_hpack, 'ltj.create_dir_whatsit', 10000)
end
do
local function create_dir_whatsit_parbox(h, gc)
- stop_time_measure('tex_linebreak')
+ stop_time_measure('tex_linebreak');
-- start 側は ltj-debug.lua に
- local new_dir, hd = ltjs.list_dir, to_direct(h)
- for line in traverse_id(id_hlist, hd) do
- local nh = getlist(line)
- setfield(line, 'head', create_dir_whatsit(nh, gc, new_dir) )
- --set_attr(line, attr_dir, new_dir)
+ local new_dir = ltjs.list_dir
+ for line in traverse_id(id_hlist, to_direct(h)) do
+ setfield(line, 'head', create_dir_whatsit(getlist(line), gc, new_dir) )
end
- tex_set_attr('global', attr_dir, 0)
+ ensure_tex_attr(attr_dir, 0)
return h
end
- luatexbase.add_to_callback('post_linebreak_filter',
+ ltjb.add_to_callback('post_linebreak_filter',
create_dir_whatsit_parbox, 'ltj.create_dir_whatsit', 10000)
end
if gc=='fin_row' then -- gc == 'preamble' case is treated in dir_adjust_vpack
if hd then
set_attr(hd, attr_icflag, PROCESSED_BEGIN_FLAG)
- tex_set_attr('global', attr_icflag, 0)
+ ensure_tex_attr(attr_icflag, 0)
end
return hd
else
-- 1st ret val: b の組方向
-- 2nd ret val はその DIR whatsit
-local function get_box_dir(b, default)
+function get_box_dir(b, default)
start_time_measure('get_box_dir')
local dir = has_attr(b, attr_dir) or 0
local bh = getfield(b,'head')
-- b は insert node となりうるので getlist() は使えない
local c
- for bh in traverse_id(id_whatsit, bh) do
- if getsubtype(bh)==sid_user and getfield(bh, 'user_id')==DIR then
- c = bh
- dir = (dir==0) and has_attr(bh, attr_dir) or dir
+ if bh~=0 then -- bh != nil
+ for bh in traverse_id(id_whatsit, bh) do
+ if getsubtype(bh)==sid_user and getfield(bh, 'user_id')==DIR then
+ c = bh
+ dir = (dir==0) and has_attr(bh, attr_dir) or dir
+ end
end
end
-- for i=1,2 do
start_time_measure('box_primitive_hook')
local list_dir = get_dir_count()%dir_math_mod
local b = getbox(tex_getcount('ltj@tempcnta'))
- if b then
+ if b and getlist(to_direct(b)) then
local box_dir = get_box_dir(to_direct(b), dir_yoko)
if box_dir%dir_math_mod ~= list_dir then
ltjb.package_error(
end
local shift_old, b_dir, wh = nil, get_box_dir(bh, 0)
if wh then
- Dnode.flush_list(getfield(wh, 'value'))
+ node.direct.flush_list(getfield(wh, 'value'))
setfield(wh, 'value', nil)
end
return nh, nb, bh, b_dir
new_dir + (is_manual and dir_node_manual or dir_node_auto))
set_attr(db, attr_icflag, PROCESSED)
set_attr(b, attr_icflag, PROCESSED)
- tex_set_attr('global', attr_dir, 0)
- tex_set_attr('global', attr_icflag, 0)
+ ensure_tex_attr(attr_dir, 0)
+ ensure_tex_attr(attr_icflag, 0)
setfield(db, 'dir', getfield(b, 'dir'))
setfield(db, 'shift', 0)
setfield(db, 'width', info.width(w,h,d))
local bh = getlist(b)
local box_dir, dn = get_box_dir(b, ltjs.list_dir)
-- 既に b の中身にあるwhatsit
-
+ if (box_dir<dir_node_auto) and (not dn) then
+ bh = create_dir_whatsit(bh, 'make_dir_whatsit', dir_yoko)
+ dn = bh; setfield(b, 'head', bh)
+ end
if box_dir%dir_math_mod==new_dir then
if box_dir>=dir_node_auto then
-- dir_node としてカプセル化されている
local _, dnc = get_box_dir(b, 0)
if dnc then -- free all other dir_node
- Dnode.flush_list(getfield(dnc, 'value'))
+ node.direct.flush_list(getfield(dnc, 'value'))
setfield(dnc, 'value', nil)
end
set_attr(b, attr_dir, box_dir%dir_math_mod + dir_node_auto)
db=x; break
end
end
- Dnode.flush_list(getfield(dn, 'value'))
+ node.direct.flush_list(getfield(dn, 'value'))
setfield(dn, 'value', nil)
db = db or create_dir_node(b, box_dir, new_dir, false)
local w = getfield(b, 'width')
end
-- lastbox
- local node_prev = (Dnode~=node) and Dnode.getprev or node.prev
+ local node_prev = (node.direct~=node) and node.direct.getprev or node.prev
+ local id_glue = node.id('glue')
local function lastbox_hook()
start_time_measure('box_primitive_hook')
local bn = tex_nest[tex_nest.ptr].tail
local b, head = to_direct(bn), to_direct(tex_nest[tex_nest.ptr].head)
local bid = getid(b)
if bid==id_hlist or bid==id_vlist then
+ local p = getlist(b)
+ -- alignment の各行の中身が入ったボックス
+ if p and getid(p)==id_glue and getsubtype(p)==12 then -- tabskip
+ local np = node_next(p); local npid = getid(np)
+ if npid==id_hlist or npid==id_vlist then
+ setfield(b, 'head', create_dir_whatsit(p, 'align', get_box_dir(np, 0)))
+ end
+ end
local box_dir = get_box_dir(b, 0)
if box_dir>= dir_node_auto then -- unwrap dir_node
local p = node_prev(b)
end
local _, wh = get_box_dir(b, 0) -- clean dir_node attached to the box
if wh then
- Dnode.flush_list(getfield('value', wh))
+ node.direct.flush_list(getfield('value', wh))
setfield(wh, 'value', nil)
end
end
else
setdimen('ltj@tempdima', 0)
end
+ tex.sprint(cat_lp, '\\ltj@tempdima')
tex.globaldefs = gt
end
luatexja.direction.get_box_dim = get_box_dim
-- return value: (changed dimen of box itself?)
+ local scan_dimen, scan_int = token.scan_dimen, token.scan_int
+ local scan_keyword = token.scan_keyword
local function set_box_dim_common(key, s, l_dir)
local s_dir, wh = get_box_dir(s, dir_yoko)
s_dir = s_dir%dir_math_mod
setfield(db, 'next', dnh)
setfield(wh, 'value',to_node(db))
end
- setfield(db, key, tex.getdimen('ltj@tempdima'))
+ setfield(db, key, scan_dimen())
return false
else
- setfield(s, key, tex.getdimen('ltj@tempdima'))
+ setfield(s, key, scan_dimen())
if wh then
-- change dimension of dir_nodes which are created "automatically"
local bw, bh, bd
end
end
local function set_box_dim(key)
- local n = tex_getcount('ltj@tempcnta')
- local s = getbox(n)
+ local s = getbox(scan_int()); scan_keyword('=')
if s then
local l_dir = (get_dir_count())%dir_math_mod
s = to_direct(s)
set_box_dim_common(key, s, l_dir)
elseif b_dir%dir_math_mod == l_dir then
-- s is dir_node
- setfield(s, key, tex.getdimen('ltj@tempdima'))
+ setfield(s, key, scan_dimen())
if b_dir<dir_node_manual then
set_attr(s, attr_dir, b_dir%dir_node_auto + dir_node_manual)
end
end
do
- local getbox, setbox, copy_list = tex.getbox, tex.setbox, Dnode.copy_list
+ local getbox, setbox, copy_list = tex.getbox, tex.setbox, node.direct.copy_list
-- raise, lower
function luatexja.direction.raise_box()
start_time_measure('box_primitive_hook')
'luatexja',
'Direction Incompatible',
"\\vadjust's argument and outer vlist must have same direction.")
- Dnode.last_node()
+ node.direct.last_node()
end
end
stop_time_measure('box_primitive_hook')
local list_dir = get_dir_count()
local a = tex_nest[tex_nest.ptr].tail
local ad = to_direct(a)
+ if (not a) or getid(ad)~=id_ins then
+ a = node.tail(tex.lists.page_head); ad = to_direct(a)
+ end
if a and getid(ad)==id_ins then
local h = getfield(ad, 'head')
if getid(h)==id_whatsit and
end
for box_rule in traverse(h) do
if getid(box_rule)<id_rule then
- local w = node_new(id_whatsit, sid_user)
- setfield(w, 'next', nil)
- setfield(w, 'user_id', DIR)
- setfield(w, 'type', 110)
- set_attr(w, attr_dir, list_dir)
- h = insert_before(h, box_rule, w)
+ h = insert_before(h, box_rule, dir_pool[list_dir]())
end
end
- tex_set_attr('global', attr_dir, 0)
+ ensure_tex_attr(attr_dir, 0)
setfield(ad, 'head', h)
end
stop_time_measure('box_primitive_hook')
-- vsplit
do
- local split_dir_whatsit
+ local split_dir_whatsit, split_dir_head
+ local cat_lp = luatexbase.catcodetables['latex-package']
+ local sprint, scan_int, tex_getbox = tex.sprint, token.scan_int, tex.getbox
+ function luatexja.direction.vsplit()
+ local n = scan_int();
+ local p = to_direct(tex_getbox(n))
+ split_dir_head = nil
+ if p then
+ local bh = getlist(p)
+ if getid(bh)==id_whatsit and getsubtype(bh)==sid_user and getfield(bh, 'user_id')==DIR
+ and node_next(bh) then
+ ltjs.list_dir = has_attr(bh, attr_dir)
+ local q = node_next(p)
+ setfield(p, 'head', node_remove(bh,bh,bh))
+ split_dir_head = bh
+ end
+ end
+ sprint(cat_lp, '\\ltj@@orig@vsplit' .. tostring(n))
+ end
local function dir_adjust_vpack(h, gc)
start_time_measure('direction_vpack')
local hd = to_direct(h)
hd = create_dir_whatsit_vbox(hd, gc)
split_dir_whatsit = hd
elseif gc=='split_off' then
- for bh in traverse_id(id_whatsit, hd) do
- if getsubtype(bh)==sid_user and getfield(bh, 'user_id')==DIR then
- ltjs.list_dir = has_attr(bh, attr_dir); break
- end
+ if split_dir_head then
+ list_dir = has_attr(split_dir_head, attr_dir)
+ hd = insert_before(hd, hd, split_dir_head)
+ split_dir_head=nil
end
- -- local bh=hd
- -- for i=1,2 do
- -- if bh and getid(bh)==id_whatsit
- -- and getsubtype(bh)==sid_user and getfield(bh, 'user_id')==DIR then
- -- ltjs.list_dir = has_attr(bh, attr_dir); break
- -- end
- -- bh = node_next(bh)
- -- end
if split_dir_whatsit then
-- adjust direction of 'split_keep'
set_attr(split_dir_whatsit, attr_dir, ltjs.list_dir)
split_dir_whatsit=nil
else
adjust_badness(hd)
- hd = process_dir_node(create_dir_whatsit_vbox(hd, gc), gc)
+ -- hd = process_dir_node(create_dir_whatsit_vbox(hd, gc), gc)
+ -- done in append_to_vpack callback
+ hd = create_dir_whatsit_vbox(hd, gc)
split_dir_whatsit=nil
end
stop_time_measure('direction_vpack')
return to_node(hd)
end
- luatexbase.add_to_callback('vpack_filter',
+ ltjb.add_to_callback('vpack_filter',
dir_adjust_vpack,
'ltj.direction', 10000)
end
local function dir_adjust_pre_output(h, gc)
return to_node(create_dir_whatsit_vbox(to_direct(h), gc))
end
- luatexbase.add_to_callback('pre_output_filter',
+ ltjb.add_to_callback('pre_output_filter',
dir_adjust_pre_output,
'ltj.direction', 10000)
end
end
--- buildpage filter
-do
- local function dir_adjust_buildpage(info)
- if info=='box' then
- local head = to_direct(tex.lists.contrib_head)
- local nb
- if head then
- head, _, nb
- = make_dir_whatsit(head,
- node_tail(head),
- get_dir_count(),
- 'buildpage')
- tex.lists.contrib_head = to_node(head)
- end
- end
- end
- luatexbase.add_to_callback('buildpage_filter',
- dir_adjust_buildpage,
- 'ltj.direction', 10000)
-end
+-- append_to_vlist filter: done in ltj-lineskip.lua
-- finalize (executed just before \shipout)
-- we supply correct pdfsavematrix nodes etc. inside dir_node
local finalize_inner
local function finalize_dir_node(db,new_dir)
local b = getlist(db)
+ if getid(b)==id_whatsit and getsubtype(b)==sid_user
+ and getfield(b, 'user_id')==DIR then
+ local ob = b; b = node_remove(b,b); setfield(db, 'head', b);
+ node_free(ob)
+ end
finalize_inner(b)
- local box_dir = get_box_dir(b, dir_yoko)%dir_math_mod
- setfield(db, 'head', nil)
local w = getfield(b, 'width')
local h = getfield(b, 'height')
local d = getfield(b, 'depth')
local dn_w = getfield(db, 'width')
local dn_h = getfield(db, 'height')
local dn_d = getfield(db, 'depth')
- local db_head, db_tail = nil
- for _,v in ipairs(dir_node_aux[box_dir][new_dir][getid(b)]) do
+ local db_head, db_tail
+ local t = dir_node_aux[get_box_dir(b, dir_yoko)%dir_math_mod][new_dir]
+ t = t and t[getid(b)]; if not t then return end
+ for _,v in ipairs(t) do
local cmd, arg, nn = v[1], v[2]
if cmd=='kern' then
- nn = node_new(id_kern)
+ nn = node_new(id_kern, 1)
setfield(nn, 'kern', arg(w, h, d, dn_w, dn_h, dn_d))
elseif cmd=='whatsit' then
nn = node_new(id_whatsit, arg)
insert_after(db_head, db_tail, nn)
db_tail = nn
else
- db_head, db_tail = nn, nn
+ setfield(db, 'head', nn)
+ db_head, db_tail = nn, nn
end
- setfield(db, 'head', db_head)
end
end
+ tex.setattribute(attr_dir, dir_yoko)
local shipout_temp = node_new(id_hlist)
- set_attr(shipout_temp, attr_dir, dir_yoko)
- tex_set_attr('global', attr_dir, 0)
+ tex.setattribute(attr_dir, 0)
finalize_inner = function (box)
for n in traverse(getlist(box)) do
end
end
local getbox = tex.getbox
- local setbox, copy = Dnode.setbox, Dnode.copy
+ local setbox, copy = node.direct.setbox, node.direct.copy
+ local lua_mem_kb = 0
function luatexja.direction.finalize()
local a = to_direct(tex.getbox("AtBeginShipoutBox"))
local a_dir = get_box_dir(a, dir_yoko)
finalize_inner(shipout_temp)
setbox('global', "AtBeginShipoutBox", copy(getlist(shipout_temp)))
setfield(shipout_temp, 'head',nil)
+ -- garbage collect
+ --local m = collectgarbage('count')
+ --if m>lua_mem_kb+20480 then
+ -- collectgarbage(); lua_mem_kb = collectgarbage('count')
+ --end
+ --print('Lua Memory Usage', lua_mem_kb)
end
end