X-Git-Url: http://git.osdn.jp/view?a=blobdiff_plain;f=src%2Fltj-direction.lua;h=42f1cb095f0677b8866a93f076fd0b7bcae24976;hb=ab23049deb6fb90ca689fdf4924b3783f08f8f2e;hp=693021a8cd780c38bad284f05f33e57f07717e66;hpb=a5b897150b428f4336e7dffd21ef6f86678be96c;p=luatex-ja%2Fluatexja.git

diff --git a/src/ltj-direction.lua b/src/ltj-direction.lua
index 693021a..42f1cb0 100644
--- a/src/ltj-direction.lua
+++ b/src/ltj-direction.lua
@@ -4,31 +4,33 @@
 
 luatexja.load_module('base');      local ltjb = luatexja.base
 luatexja.load_module('stack');     local ltjs = luatexja.stack
-luatexja.load_module('rmlgbm');    local ltjr = luatexja.rmlgbm
 luatexja.direction = {}
 
 local attr_dir = luatexbase.attributes['ltj@dir']
 local attr_icflag = luatexbase.attributes['ltj@icflag']
 
-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_id = Dnode.traverse_id
+local cat_lp = luatexbase.catcodetables['latex-package']
+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 id_kern = node.id('kern')
 local id_hlist = node.id('hlist')
@@ -39,338 +41,848 @@ local sid_restore = node.subtype('pdf_restore')
 local sid_matrix = node.subtype('pdf_setmatrix')
 local sid_user = node.subtype('user_defined')
 
+local tex_nest = tex.nest
+local tex_getcount = tex.getcount
+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 DIR = luatexja.stack_table_index.DIR
-local STCK = luatexja.userid_table.STCK
-local wh_DIR = luatexja.userid_table.DIR
-local dir_tate = 3
-local dir_yoko = 4
+local DIR  = luatexja.userid_table.DIR
+local dir_tate = luatexja.dir_table.dir_tate
+local dir_yoko = luatexja.dir_table.dir_yoko
+local dir_dtou = luatexja.dir_table.dir_dtou
+local dir_utod = luatexja.dir_table.dir_utod
+local dir_math_mod    = luatexja.dir_table.dir_math_mod
+local dir_node_auto   = luatexja.dir_table.dir_node_auto
+local dir_node_manual = luatexja.dir_table.dir_node_manual
+local function get_attr_icflag(p)
+   return (has_attr(p, attr_icflag) or 0) % PROCESSED_BEGIN_FLAG
+end
 
+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 get_dir_count 
+--
+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
+      -- avoid double whatsit
+      luatexja.global_temp=tex.globaldefs; tex.globaldefs=0
+      luatexja.hbadness_temp=tex.hbadness; tex.hbadness=10000
+      luatexja.vbadness_temp=tex.vbadness; tex.vbadness=10000
+   else
+      luatexja.global_temp = nil
+      luatexja.hbadness_temp=nil
+      luatexja.vbadness_temp=nil
+   end
+end
+
+local get_dir_count, get_adjust_dir_count
 do
-   local gc = tex.getcount
-   get_dir_count = function() return gc('ltj@dir@count') end
+   local function get_dir_count_inner(h)
+      if h then
+	 if h.id==id_whatsit and h.subtype==sid_user and h.user_id==DIR then
+	       local ic = node.has_attribute(h, attr_icflag) or 0
+	       return (ic<PROCESSED_BEGIN_FLAG)
+		  and (node.has_attribute(h,attr_dir)%dir_node_auto) or 0
+	 else
+	    return 0
+	 end
+      else
+	 return 0
+      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
+   end
+   function get_adjust_dir_count()
+      for i=tex_nest.ptr, 1, -1 do
+         local v = tex_nest[i]
+	 local h, m = v.head.next, v.mode
+	 if abs(m)== ltjs.vmode and h then
+	    local t = get_dir_count_inner(h)
+	    if t~=0 then return t end
+	 end
+      end
+      return page_direction
+   end
+   luatexja.direction.get_dir_count = get_dir_count
+   luatexja.direction.get_adjust_dir_count = get_adjust_dir_count
 end
-luatexja.direction.get_dir_count = get_dir_count 
 
--- \tate, \yoko
+
+-- \tate, \yoko，\dtou, \utod
 do
-  local node_next = node.next
-  local function set_list_direction(v, name)
-     local lv, w = tex.nest[tex.nest.ptr], tex.lists.page_head
-     if lv.mode == 1 and w then
-        if w.id==id_whatsit and w.subtype==sid_user
-        and w.user_id==wh_DIR then
-           w.value=v
-        end
-     else
-        local w = node_next(to_direct(lv.head))
-        if to_node(w) then
-           if getid(w)==id_whatsit and getsubtype(w)==sid_user
-           and getfield('user_id', wh_DIR) then
-              setfield(w, 'value', v)
-           else
+   local node_next = node.next
+   local node_set_attr = node.set_attribute
+   local node_traverse = node.traverse
+   local STCK = luatexja.userid_table.STCK
+   local IHB = luatexja.userid_table.IHB
+   local sid_local = node.subtype('local_par')
+   local id_local = node.id('local_par')
+
+   local function test_list(h, lv)
+      if not h then
+	 return 2 -- need to create dir_whatsit
+      else
+	 local flag = 2 -- need to create dir_whatsit
+	 local w
+	 for p in node_traverse(h) do
+	    if p.id==id_whatsit 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
+	       elseif ps~=sid_local then
+		  flag = 0; break
+	       end
+	    elseif p.id~=id_local then
+	       flag = 0; break
+	    end
+	 end
+	 if flag==1 then -- dir_whatsit already exists
+	    return 1,w
+	 else
+	    return flag
+	 end
+      end
+   end
+   function luatexja.direction.set_list_direction_hook(v)
+      local lv = tex_nest.ptr -- must be >= 1
+      if not v then
+         v = get_dir_count()
+	 if abs(tex_nest[lv-1].mode) == ltjs.mmode and v == dir_tate then
+	    v = dir_utod
+	 end
+      elseif v=='adj' then
+         v = get_adjust_dir_count()
+      end
+      local h = to_direct(tex_nest[lv].head)
+      local w = dir_pool[v]()
+      insert_after(h, h, w)
+      tex_nest[lv].tail = to_node(node_tail(w))
+      ensure_tex_attr(attr_icflag, 0)
+      ensure_tex_attr(attr_dir, 0)
+   end
+
+   local function set_list_direction(v, name)
+      local lv = tex_nest.ptr
+      if not v then
+         v,name  = get_dir_count(), nil
+	 if lv>=1 and abs(tex_nest[lv-1].mode) == ltjs.mmode and v == dir_tate then
+	    v = dir_utod
+	 end
+      elseif v=='adj' then
+         v,name = get_adjust_dir_count(), nil
+      end
+      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.")
+      else
+	 local h = (lv==0) and tex.lists.page_head or tex_nest[lv].head.next
+	 local flag,w = test_list(h,lv)
+	 if flag==0 then
+	    if lv==0 and not page_direction then
+	       page_direction = v -- for first call of \yoko (in luatexja-core.sty)
+	    else
               ltjb.package_error(
                  'luatexja',
-                 "Use `\\" .. name .. "' at top of list",
+                 "Use `\\" .. tostring(name) .. "' at top of list",
                  'Direction change command by LuaTeX-ja is available\n'
-                 .. 'only while current list is null.')
-           end
-        else
-           local w = node_new(id_whatsit, sid_user)
-           setfield(w, 'next', hd)
-           setfield(w, 'user_id', wh_DIR)
-           setfield(w, 'type', 100)
-           setfield(w, 'value', v)
-           Dnode.write(w)
-        end
-     end
-  end
-  luatexja.direction.set_list_direction = set_list_direction
+		    .. 'only when the current list is null.')
+	    end
+	 elseif flag==1 then
+	    node_set_attr(w, attr_dir, v)
+	    if lv==0 then page_direction = v end
+	 else
+	    if lv==0 then page_direction = v end
+	 end
+         ensure_tex_attr(attr_icflag, 0)
+      end
+      ensure_tex_attr(attr_dir, 0)
+   end
+   luatexja.direction.set_list_direction = set_list_direction
 end
 
 -- ボックスに dir whatsit を追加
+local function create_dir_whatsit(hd, gc, new_dir)
+   if getid(hd)==id_whatsit and
+	    getsubtype(hd)==sid_user and getfield(hd, 'user_id')==DIR then
+      set_attr(hd, attr_icflag,
+	       get_attr_icflag(hd) + PROCESSED_BEGIN_FLAG)
+      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 = dir_pool[new_dir]()
+      setfield(w, 'next', hd)
+      set_attr(w, attr_icflag, PROCESSED_BEGIN_FLAG)
+      set_attr(hd, attr_icflag,
+	       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
 do
-   local tex_getcount = tex.getcount
-   local function set_dir_flag(h, gc)
+   local function create_dir_whatsit_hpack(h, gc)
+      local hd = to_direct(h)
       if gc=='fin_row' or gc == 'preamble'  then
+	 if hd  then
+	    set_attr(hd, attr_icflag, PROCESSED_BEGIN_FLAG)
+	    ensure_tex_attr(attr_icflag, 0)
+	 end
 	 return h
       else
-	 local hd = to_direct(h)
-	 local w
-	 if hd and getid(hd)==id_whatsit and getsubtype(hd)==sid_user
-	 and getfield(hd, 'user_id')==wh_DIR then
-	    return h
-	 else
-	    w = node_new(id_whatsit, sid_user)
-	    setfield(w, 'next', hd)
-            setfield(w, 'user_id', wh_DIR)
-            setfield(w, 'type', 100)
-            setfield(w, 'value', ltjs.list_dir)
-            return to_node(w)
-	 end
+	 adjust_badness(hd)
+	 return to_node(create_dir_whatsit(hd, gc, ltjs.list_dir))
       end
    end
-   luatexbase.add_to_callback('hpack_filter', set_dir_flag, 'ltj.set_dir_flag', 10000)
 
-   local function set_dir_flag_vbox(h, gc)
-      local w = to_direct(h)
+   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')
+      -- start 側は ltj-debug.lua に
+      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
+      ensure_tex_attr(attr_dir, 0)
+      return h
+   end
+   ltjb.add_to_callback('post_linebreak_filter',
+			      create_dir_whatsit_parbox, 'ltj.create_dir_whatsit', 10000)
+end
+
+local create_dir_whatsit_vbox
+do
+   local wh = {}
+   local id_glue, sid_parskip = node.id('glue'), 3
+   create_dir_whatsit_vbox = function (hd, gc)
       ltjs.list_dir = get_dir_count()
-      if getid(w)==id_whatsit and getsubtype(w)==sid_user
-      and getfield(w, 'user_id')==wh_DIR then
-         ltjs.list_dir = getfield(w, 'value')
-      --print('VB', gc, ltjs.list_dir)
-      --luatexja.ext_show_node_list(h, '   > ', print)
-         return h
+      -- remove dir whatsit
+      for x in traverse_id(id_whatsit, hd) do
+     	 if getsubtype(x)==sid_user and getfield(x, 'user_id')==DIR then
+     	    wh[#wh+1]=x
+     	 end
+      end
+      if hd==wh[1] then
+	 ltjs.list_dir =has_attr(hd,attr_dir)
+	 local x = node_next(hd)
+	 if getid(x)==id_glue and getsubtype(x)==sid_parskip then
+	    node_remove(hd,x); node_free(x)
+	 end
+      end
+      for i=1,#wh do
+	 hd = node_remove(hd, wh[i]); node_free(wh[i]); wh[i] = nil
+      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)
+	    ensure_tex_attr(attr_icflag, 0)
+	 end
+	 return hd
       else
-      --print('VB', gc, ltjs.list_dir)
-      --luatexja.ext_show_node_list(h, '   > ', print)
-         return set_dir_flag(h, gc)
+	 local n =node_next(hd)
+	 if gc=='vtop' then
+	    local w = create_dir_whatsit(hd, gc, ltjs.list_dir)
+	    -- move  dir whatsit after hd
+	    setfield(hd, 'next', w); setfield(w, 'next', n)
+	    return hd
+	 else
+	    hd = create_dir_whatsit(hd, gc, ltjs.list_dir)
+	    return hd
+	 end
       end
    end
-   luatexbase.add_to_callback('vpack_filter', set_dir_flag_vbox, 'ltj.set_dir_flag', 1)
-   luatexbase.add_to_callback('post_linebreak_filter',
-			      function (h)
-				 local new_dir = ltjs.list_dir
-				 for line in traverse_id(id_hlist, to_direct(h)) do
-				    set_attr(line, attr_dir, new_dir)
-				 end
-				 return set_dir_flag(h, tostring(gc))
-			      end, 'ltj.set_dir_flag', 100)
-
 end
 
-
-
-local make_dir_node
+-- dir_node に包む方法を書いたテーブル
+local dir_node_aux
 do
+   local floor = math.floor
    local get_h =function (w,h,d) return h end
    local get_d =function (w,h,d) return d end
    local get_h_d =function (w,h,d) return h+d end
-   local get_h_neg =function (w,h,d) return -h end
+   local get_h_d_neg =function (w,h,d) return -h-d end
    local get_d_neg =function (w,h,d) return -d end
-   local get_w_half =function (w,h,d) return 0.5*w end
-   local get_w_neg_half =function (w,h,d) return -0.5*w end
+   local get_w_half =function (w,h,d) return floor(0.5*w) end
+   local get_w_half_rem =function (w,h,d) return w-floor(0.5*w) end
    local get_w_neg =function (w,h,d) return -w end
    local get_w =function (w,h,d) return w end
-   local dir_node_aux = {
-      [dir_yoko] = { -- yoko を tate 中で組む
-	 width  = get_h_d,
-	 height = get_w_half,
-	 depth  = get_w_half,
-	 [id_hlist] = {
-	    { 'kern', get_h },
-	    { 'whatsit', sid_save },
-	    { 'rotate', '0 1 -1 0' },
-	    { 'kern', get_w_neg_half },
-	    { 'box' },
-	    { 'kern', get_w_neg_half },
-	    { 'whatsit', sid_restore },
+   local zero = function() return 0 end
+   dir_node_aux = {
+      [dir_yoko] = { -- yoko を
+	 [dir_tate] = { -- tate 中で組む
+	    width  = get_h_d,
+	    height = get_w_half,
+	    depth  = get_w_half_rem,
+	    [id_hlist] = {
+	       { 'whatsit', sid_save },
+	       { 'rotate', '0 1 -1 0' },
+	       { 'kern', function(w,h,d,nw,nh,nd) return -nd end },
+	       { 'box' , get_h},
+	       { 'kern', function(w,h,d,nw,nh,nd) return nd-w end },
+	       { 'whatsit', sid_restore },
+	    },
+	    [id_vlist] = {
+	       { 'whatsit', sid_save },
+	       { 'rotate', '0 1 -1 0' },
+	       { 'kern' , zero },
+	       { 'box' , function(w,h,d,nw,nh,nd) return -nh-nd end },
+	       { 'kern', get_h_d_neg},
+	       { 'whatsit', sid_restore },
+	    },
+	 },
+	 [dir_dtou] = { -- dtou 中で組む
+	    width  = get_h_d,
+	    height = get_w,
+	    depth  = zero,
+	    [id_hlist] = {
+	       { 'whatsit', sid_save },
+	       { 'rotate', '0 -1 1 0' },
+	       { 'kern', function(w,h,d,nw,nh,nd) return -nh end },
+	       { 'box', get_d_neg },
+	       { 'kern', function(w,h,d,nw,nh,nd) return nh-w end },
+	       { 'whatsit', sid_restore },
+	    },
+	    [id_vlist] = {
+	       { 'whatsit', sid_save },
+	       { 'rotate', '0 -1 1 0' },
+	       { 'kern', get_h_d_neg },
+	       { 'box', zero },
+	       { 'whatsit', sid_restore },
+	    },
 	 },
-	 [id_vlist] = {
-	    { 'kern', get_w},
-	    { 'whatsit', sid_save },
-	    { 'rotate', '0 1 -1 0' },
-	    { 'box' },
-	    { 'kern', get_h_neg},
-	    { 'whatsit', sid_restore },
+      },
+      [dir_tate] = { -- tate を
+	 [dir_yoko] = { -- yoko 中で組む
+	    width  = get_h_d,
+	    height = get_w,
+	    depth  = zero,
+	    [id_hlist] = {
+	       { 'whatsit', sid_save },
+	       { 'rotate', '0 -1 1 0' },
+	       { 'kern', function (w,h,d,nw,nh,nd) return -nh end },
+	       { 'box' , get_d_neg },
+	       { 'kern', function (w,h,d,nw,nh,nd) return nh-w end },
+	       { 'whatsit', sid_restore },
+	    },
+	    [id_vlist] = {
+	       { 'whatsit', sid_save },
+	       { 'rotate', '0 -1 1 0' },
+	       { 'kern', get_h_d_neg },
+	       { 'box', zero },
+	       { 'whatsit', sid_restore },
+	    },
 	 },
+	 [dir_dtou] = { -- dtou 中で組む
+	    width  = get_w,
+	    height = get_d,
+	    depth  = get_h,
+	    [id_hlist] = {
+	       { 'whatsit', sid_save },
+	       { 'rotate', '-1 0 0 -1' },
+	       { 'kern', get_w_neg },
+	       { 'box',  function (w,h,d,nw,nh,nd) return h-nd end },
+	       { 'whatsit', sid_restore },
+	    },
+	    [id_vlist] = {
+	       { 'whatsit', sid_save },
+	       { 'rotate', '-1 0 0 -1' },
+	       { 'kern', get_h_d_neg },
+	       { 'box', get_w_neg },
+	       { 'whatsit', sid_restore },
+	    },
+         },
       },
-      [dir_tate] = { -- tate を yoko 中で組む
-	 width  = get_h_d,
-	 height = get_w,
-	 depth  = function() return 0 end,
-	 [id_hlist] = {
-	    { 'kern', get_d },
-	    { 'whatsit', sid_save },
-	    { 'rotate', '0 -1 1 0' },
-	    { 'kern', get_w_neg },
-	    { 'box' },
-	    { 'whatsit', sid_restore },
+      [dir_dtou] = { -- dtou を
+	 [dir_yoko] = { -- yoko 中で組む
+	    width  = get_h_d,
+	    height = get_w,
+	    depth  = zero,
+	    [id_hlist] = {
+	       { 'whatsit', sid_save },
+	       { 'rotate', '0 1 -1 0' },
+	       { 'kern', function (w,h,d,nw,nh,nd) return -nd end },
+	       { 'box', get_h },
+	       { 'kern', function (w,h,d,nw,nh,nd) return nd-w end },
+	       { 'whatsit', sid_restore },
+	    },
+	    [id_vlist] = {
+               { 'kern', zero },
+	       { 'whatsit', sid_save },
+	       { 'rotate', '0 1 -1 0' },
+	       { 'box', function (w,h,d,nw,nh,nd) return -nd-nh end },
+	       { 'kern', get_h_d_neg },
+	       { 'whatsit', sid_restore },
+	    },
 	 },
-	 [id_vlist] = {
-	    { 'whatsit', sid_save },
-	    { 'rotate', '0 -1 1 0' },
-	    { 'kern', get_h_neg },
-	    { 'kern', get_d_neg },
-	    { 'box' },
-	    { 'whatsit', sid_restore },
+	 [dir_tate] = { -- tate 中で組む
+	    width  = get_w,
+	    height = get_d,
+	    depth  = get_h,
+	    [id_hlist] = {
+	       { 'whatsit', sid_save },
+	       { 'rotate', '-1 0 0 -1' },
+	       { 'kern', get_w_neg },
+	       { 'box', function (w,h,d,nw,nh,nd) return h-nd end },
+	       { 'whatsit', sid_restore },
+	    },
+	    [id_vlist] = {
+	       { 'whatsit', sid_save },
+	       { 'rotate', ' -1 0 0 -1' },
+	       { 'kern', function (w,h,d,nw,nh,nd) return -nh-nd end },
+	       { 'box', get_w_neg },
+	       { 'kern', function (w,h,d,nw,nh,nd) return nh+nd-h-d end },
+	       { 'whatsit', sid_restore },
+	    },
 	 },
       },
    }
+end
 
-   clean_dir_whatsit = function(b)
-      local bh = getlist(b)
-      local dir
-      for x in traverse_id(id_whatsit, bh) do
-	 if getsubtype(bh)==sid_user and getfield(bh, 'user_id')==wh_DIR then
-	     setfield(b, 'head', (node_remove(bh, x)))
-	     dir = getfield(bh, 'value')
-	     set_attr(b, attr_dir, dir)
-	     set_attr(b, attr_icflag, PROCESSED)
-	     node_free(x); break
+-- 1st ret val: b の組方向
+-- 2nd ret val はその DIR whatsit
+local 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
+   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
+   --    if bh and getid(bh)==id_whatsit
+   --    and 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
+   --    bh = node_next(bh)
+   -- end
+   stop_time_measure('get_box_dir')
+   return (dir==0 and default or dir), c
+end
+
+do
+   local getbox = tex.getbox
+   local dir_backup
+   function luatexja.direction.unbox_check_dir(is_copy)
+      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
+	 local box_dir = get_box_dir(to_direct(b), dir_yoko)
+	 if box_dir%dir_math_mod ~= list_dir then
+	    ltjb.package_error(
+	       'luatexja',
+	       "Incompatible direction list can't be unboxed",
+	       'I refuse to unbox a box in differrent direction.')
+            tex.sprint(cat_lp, '\\@gobbletwo')
+	 else
+	    dir_backup = nil
+	    local bd = to_direct(b)
+	    local hd = getlist(bd)
+	    local nh = hd
+	    while hd do
+	       if getid(hd)==id_whatsit and getsubtype(hd)==sid_user
+		  and getfield(hd, 'user_id')==DIR then
+		     local d = hd
+		     nh, hd = node_remove(nh, hd)
+		     if is_copy and (not dir_backup) then
+			dir_backup = d
+			setfield(dir_backup, 'next', nil)
+		     else
+			node_free(d)
+		     end
+	       else
+		  hd = node_next(hd)
+	       end
+	    end
+	    setfield(bd, 'head', nh)
+	 end
+      end
+      if luatexja.global_temp and tex.globaldefs~=luatexja.global_temp then
+	 tex.globaldefs = luatexja.global_temp
+      end
+      stop_time_measure('box_primitive_hook')
+   end
+   function luatexja.direction.uncopy_restore_whatsit()
+      local b = getbox(tex_getcount('ltj@tempcnta'))
+      if b then
+	 local bd = to_direct(b)
+	 if dir_backup then
+	    setfield(dir_backup, 'next', getlist(bd))
+	    setfield(bd, 'head', dir_backup)
+	    dir_backup = nil
 	 end
       end
-      return dir
    end
-   luatexja.direction.clean_dir_whatsit = clean_dir_whatsit
-   make_dir_node = function (head, b, new_dir, origin)
+end
+
+-- dir_node に包まれている「本来の中身」を取り出し，
+-- dir_node を全部消去
+local function unwrap_dir_node(b, head, box_dir)
+   -- b: dir_node, head: the head of list, box_dir:
+   -- return values are (new head), (next of b), (contents), (dir of contents)
+   local bh = getlist(b)
+   local nh, nb
+   if head then
+      nh = insert_before(head, b, bh)
+      nh, nb = node_remove(nh, b)
+      setfield(b, 'next', nil)
+      node_free(b)
+   end
+   local shift_old, b_dir, wh = nil, get_box_dir(bh, 0)
+   if wh then
+      node.direct.flush_list(getfield(wh, 'value'))
+      setfield(wh, 'value', nil)
+   end
+   return nh, nb, bh, b_dir
+end
+
+-- is_manual: 寸法変更に伴うものか？
+local function create_dir_node(b, b_dir, new_dir, is_manual)
+   local info = dir_node_aux[b_dir%dir_math_mod][new_dir%dir_math_mod]
+   local w = getfield(b, 'width')
+   local h = getfield(b, 'height')
+   local d = getfield(b, 'depth')
+   local db = node_new(getid(b)) -- dir_node
+   set_attr(db, attr_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)
+   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))
+   setfield(db, 'height', info.height(w,h,d))
+   setfield(db, 'depth',  info.depth(w,h,d))
+   return db
+end
+
+-- 異方向のボックスの処理
+local make_dir_whatsit, process_dir_node
+do
+   make_dir_whatsit = function (head, b, new_dir, origin)
+      new_dir = new_dir%dir_math_mod
       -- head: list head, b: box
       -- origin: コール元 (for debug)
       -- return value: (new head), (next of b), (new b), (is_b_dir_node)
       -- (new b): b か dir_node に被せられた b
-      local old_dir
       local bh = getlist(b)
-      for x in traverse_id(id_whatsit, bh) do
-	 if getsubtype(bh)==sid_user and getfield(bh, 'user_id')==wh_DIR then
-	     old_dir = getfield(bh, 'value')
-	     set_attr(b, attr_dir, old_dir)
-	     setfield(b, 'head', (node_remove(bh, x)))
-	     node_free(x); break
+      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_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
+	       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)
+	    return head, node_next(b), b, true
+	 else
+	    -- 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
+	    return head, node_next(b), b, false
 	 end
-      end
-      if not old_dir then
-	 old_dir = has_attr(b, attr_dir) or 0
-         if old_dir ==0 then
-            old_dir = ltjs.list_dir
-         end
-      end
-      if old_dir==new_dir then
-	 set_attr(b, attr_icflag, PROCESSED)
-	 return head, node_next(b), b, false
-      elseif  -old_dir == new_dir  then
-	 return head, node_next(b), b, true
       else
-	 local nh, nb, ret, flag
-	 if old_dir < 0 then
-	    -- b itself is a dir node; just unwrap
-	    local bc = node_next(node_next(
-				    node_next(node_next(bh))))
-	    node_remove(bh, bc);
-	    nh, nb =  insert_before(head, b, bc), nil
-	    nh, nb = node_remove(head, b)
-	    setfield(b, 'next', nil); Dnode.flush_list(b)
-	    ret, flag = bc, false
-	 else
-	    local bid = getid(b)
-	    local db = node_new(bid) -- dir node
-	    nh, nb =  insert_before(head, b, db), nil
-	    nh, nb = node_remove(nh, b)
-	    local w = getfield(b, 'width')
-	    local h = getfield(b, 'height')
-	    local d = getfield(b, 'depth')
-	    local info = dir_node_aux[old_dir]
-	    set_attr(db, attr_dir, -new_dir)
-	    set_attr(b, attr_icflag, PROCESSED)
-	    set_attr(db, attr_icflag, PROCESSED)
-	    setfield(db, 'dir', getfield(b, 'dir'))
-	    setfield(db, 'shift', 0)
-	    setfield(db, 'width',  info.width(w,h,d))
-	    setfield(db, 'height', info.height(w,h,d))
-	    setfield(db, 'depth',  info.depth(w,h,d))
-	    local db_head, db_tail  = nil
-	    for _,v in ipairs(info[bid]) do
-	       local cmd, arg, nn = v[1], v[2]
-	       if cmd=='kern' then
-		  nn = node_new(id_kern)
-		  setfield(nn, 'kern', arg(w, h, d))
-	       elseif cmd=='whatsit' then
-		  nn = node_new(id_whatsit, arg)
-	       elseif cmd=='rotate' then
-		  nn = node_new(id_whatsit, sid_matrix)
-		  setfield(nn, 'data', arg)
-	       elseif cmd=='box' then
-		  nn = b; setfield(b, 'next', nil)
-	       end
-	       if db_head then
-		  insert_after(db_head, db_tail, nn)
-		  db_tail = nn
-	       else
-		  db_head, db_tail = nn, nn
-	       end
+	 -- 組方向を合わせる必要あり
+         local nh, nb, ret, flag
+	 if box_dir>= dir_node_auto then -- unwrap
+	    local b_dir
+            head, nb, b, b_dir = unwrap_dir_node(b, head, box_dir)
+	    bh = getlist(b)
+	    if b_dir%dir_math_mod==new_dir then
+	       -- dir_node の中身が周囲の組方向とあっている
+	       return head, nb, b, false
+	    else box_dir = b_dir end
+	 end
+	 box_dir = box_dir%dir_math_mod
+	 local db
+	 local dnh = getfield(dn, 'value')
+	 for x in traverse(dnh) do
+	    if has_attr(x, attr_dir)%dir_math_mod == new_dir then
+	       setfield(dn, 'value', to_node(node_remove(dnh, x)))
+	       db=x; break
 	    end
-	    setfield(db, 'head', db_head)
-	    ret, flag = db, true
 	 end
+	 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')
+	 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')
+	 nh, nb =  insert_before(head, b, db), nil
+	 nh, nb = node_remove(nh, b)
+         setfield(b, 'next', nil); setfield(db, 'head', b)
+         ret, flag = db, true
 	 return nh, nb, ret, flag
       end
    end
-   local function process_dir_node(head, gc)
-      local h = to_direct(head)
-      local x, new_dir = h, ltjs.list_dir or dir_yoko
+   process_dir_node = function (hd, gc)
+      local x, new_dir = hd, ltjs.list_dir or dir_yoko
       while x do
 	 local xid = getid(x)
-	 if (xid==id_hlist and has_attr(x, attr_icflag)~=PACKED) or xid==id_vlist then
-	    h, x = make_dir_node(h, x, new_dir, 'process_dir_node:' .. gc)
+	 if (xid==id_hlist and get_attr_icflag(x)~=PACKED)
+	 or xid==id_vlist then
+	    hd, x = make_dir_whatsit(hd, x, new_dir, 'process_dir_node:' .. gc)
 	 else
 	    x = node_next(x)
 	 end
       end
-      return to_node(h)
+      return hd
    end
-   luatexja.direction.make_dir_node = make_dir_node
-   luatexbase.add_to_callback('vpack_filter',
-			      process_dir_node, 'ltj.dir_node', 10001)
-end
-
 
--- 縦書き用字形への変換テーブル
-local font_vert_table = {} -- key: fontnumber
-do
-   local font_vert_basename = {} -- key: basename
-   local function add_feature_table(tname, src, dest)
-      for i,v in pairs(src) do
-	 if type(v.slookups)=='table' then
-	    local s = v.slookups[tname]
-	    if s and not dest[i] then
-	       dest[i] = s
+   -- lastbox
+   local node_prev = (node.direct~=node) and node.direct.getprev or node.prev
+   local function lastbox_hook()
+      start_time_measure('box_primitive_hook')
+      local bn = tex_nest[tex_nest.ptr].tail
+      if bn then
+	 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 box_dir =  get_box_dir(b, 0)
+	    if box_dir>= dir_node_auto then -- unwrap dir_node
+	       local p = node_prev(b)
+	       local dummy1, dummy2, nb = unwrap_dir_node(b, nil, box_dir)
+	       setfield(p, 'next', nb);  tex_nest[tex_nest.ptr].tail = to_node(nb)
+	       setfield(b, 'next', nil); setfield(b, 'head', nil)
+	       node_free(b); b = nb
+	    end
+	    local _, wh =  get_box_dir(b, 0) -- clean dir_node attached to the box
+	    if wh then
+	       node.direct.flush_list(getfield('value', wh))
+	       setfield(wh, 'value', nil)
 	    end
 	 end
       end
+      stop_time_measure('box_primitive_hook')
    end
 
-   local function prepare_vert_data(n, id)
-      -- test if already loaded
-      if type(id)=='number' then -- sometimes id is an integer
-         font_vert_table[n] = font_vert_table[id]; return
-      elseif (not id) or font_vert_table[n]  then return
+   luatexja.direction.make_dir_whatsit = make_dir_whatsit
+   luatexja.direction.lastbox_hook = lastbox_hook
+end
+
+-- \wd, \ht, \dp の代わり
+do
+   local getbox, setdimen = tex.getbox, tex.setdimen
+   local function get_box_dim_common(key, s, l_dir)
+      -- s: not dir_node.
+      local s_dir, wh = get_box_dir(s, dir_yoko)
+      s_dir = s_dir%dir_math_mod
+      if s_dir ~= l_dir then
+         local not_found = true
+         for x in traverse(getfield(wh, 'value')) do
+            if l_dir == has_attr(x, attr_dir)%dir_node_auto then
+               setdimen('ltj@tempdima', getfield(x, key))
+               not_found = false; break
+            end
+         end
+         if not_found then
+            local w = getfield(s, 'width')
+            local h = getfield(s, 'height')
+            local d = getfield(s, 'depth')
+            setdimen('ltj@tempdima',
+                         dir_node_aux[s_dir][l_dir][key](w,h,d))
+         end
+      else
+         setdimen('ltj@tempdima', getfield(s, key))
       end
-      local fname = id.filename
-      local bname = file.basename(fname)
-      if not fname then
-         font_vert_table[n] = {}; return
-      elseif font_vert_basename[bname] then
-         font_vert_table[n] = font_vert_basename[bname]; return
+   end
+   local function get_box_dim(key, n)
+      local gt = tex.globaldefs; tex.globaldefs = 0
+      local s = getbox(n)
+      if s then
+         local l_dir = (get_dir_count())%dir_math_mod
+         s = to_direct(s)
+         local b_dir = get_box_dir(s,dir_yoko)
+         if b_dir<dir_node_auto then
+            get_box_dim_common(key, s, l_dir)
+         elseif b_dir%dir_math_mod==l_dir then
+            setdimen('ltj@tempdima', getfield(s, key))
+         else
+            get_box_dim_common(key, getlist(s), l_dir)
+         end
+      else
+         setdimen('ltj@tempdima', 0)
       end
-      local vtable = {}
-      local a = id.resources.sequences
-      if a then
-	 local s = id.shared.rawdata.descriptions
-	 for i,v in pairs(a) do
-	    if v.features.vert or v.features.vrt2 then
-	       add_feature_table(v.subtables[1], s, vtable)
+      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 = luatexja.token.scan_dimen, luatexja.token.scan_int
+   local scan_keyword = luatexja.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
+      if s_dir ~= l_dir then
+         if not wh then
+            wh = create_dir_whatsit(getlist(s), 'set_box_dim', s_dir)
+            setfield(s, 'head', wh)
+         end
+         local db
+         local dnh = getfield(wh, 'value')
+         for x in traverse(dnh) do
+            if has_attr(x, attr_dir)%dir_node_auto==l_dir then
+               db = x; break
+            end
+         end
+         if not db then
+            db = create_dir_node(s, s_dir, l_dir, true)
+            setfield(db, 'next', dnh)
+            setfield(wh, 'value',to_node(db))
+         end
+         setfield(db, key, scan_dimen())
+	 return false
+      else
+         setfield(s, key, scan_dimen())
+	 if wh then
+	    -- change dimension of dir_nodes which are created "automatically"
+	       local bw, bh, bd
+		  = getfield(s,'width'), getfield(s, 'height'), getfield(s, 'depth')
+	    for x in traverse(getfield(wh, 'value')) do
+	       local x_dir = has_attr(x, attr_dir)
+	       if x_dir<dir_node_manual then
+		  local info = dir_node_aux[s_dir][x_dir%dir_node_auto]
+		  setfield(x, 'width',  info.width(bw,bh,bd))
+		  setfield(x, 'height', info.height(bw,bh,bd))
+		  setfield(x, 'depth',  info.depth(bw,bh,bd))
+	       end
 	    end
 	 end
+	 return true
       end
-      font_vert_basename[bname] = vtable
-      font_vert_table[n] = vtable
    end
-   -- 縦書き用字形への変換
-   function luatexja.direction.get_vert_glyph(n, chr)
-      local fn = font_vert_table[n]
-      return fn and fn[chr] or chr
+   local function set_box_dim(key)
+      local s = getbox(scan_int()); scan_keyword('=')
+      if s then
+	 local l_dir = (get_dir_count())%dir_math_mod
+	 s = to_direct(s)
+         local b_dir = get_box_dir(s,dir_yoko)
+         if b_dir<dir_node_auto then
+            set_box_dim_common(key, s, l_dir)
+	 elseif b_dir%dir_math_mod == l_dir then
+	    -- s is dir_node
+	    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
+         else
+	    local sid, b = getid(s), getlist(s)
+	    local info = dir_node_aux[get_box_dir(b,dir_yoko)%dir_math_mod][b_dir%dir_node_auto]
+	    local bw, bh, bd
+	       = getfield(b,'width'), getfield(b, 'height'), getfield(b, 'depth')
+	    local sw, sh, sd
+	       = getfield(s,'width'), getfield(s, 'height'), getfield(s, 'depth')
+	    if set_box_dim_common(key, b, l_dir) and b_dir<dir_node_manual then
+	       -- re-calculate dimension of s, if s is created "automatically"
+	       if b_dir<dir_node_manual then
+		  setfield(s, 'width',  info.width(bw,bh,bd))
+		  setfield(s, 'height', info.height(bw,bh,bd))
+		  setfield(s, 'depth',  info.depth(bw,bh,bd))
+	       end
+	    end
+         end
+      end
    end
-   luatexbase.add_to_callback('luatexja.define_font',
-			      function (res, name, size, id)
-				 prepare_vert_data(id, res)
-			      end,
-			      'prepare_vert_data', 1)
+   luatexja.direction.set_box_dim = set_box_dim
+end
 
-   local function a (n, dat) font_vert_table[n] = dat end
-   luatexja.rmlgbm.vert_addfunc = a
+do
+   local getbox = tex.getbox
+   local function get_register_dir(n)
+      local s = getbox(n)
+      if s then
+         s = to_direct(s)
+         local b_dir = get_box_dir(s, dir_yoko)
+         if b_dir<dir_node_auto then
+	    return b_dir
+         else
+	    local b_dir = get_box_dir(
+	       node_next(node_next(node_next(getlist(s)))), dir_yoko)
+	    return b_dir
+         end
+      else
+         return 0
+      end
+   end
+   luatexja.direction.get_register_dir = get_register_dir
+end
 
+do
+   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')
+      local list_dir = get_dir_count()
+      local s = getbox('ltj@afbox')
+      if s then
+	 local sd = to_direct(s)
+	 local box_dir = get_box_dir(sd, dir_yoko)
+	 if box_dir%dir_math_mod ~= list_dir then
+	    setbox(
+	       'ltj@afbox',
+	       to_node(copy_list(make_dir_whatsit(sd, sd, list_dir, 'box_move')))
+	       -- copy_list しないとリストの整合性が崩れる……？
+	    )
+	 end
+      end
+      stop_time_measure('box_primitive_hook')
+   end
 end
 
 -- PACKED の hbox から文字を取り出す
@@ -378,8 +890,221 @@ end
 do
    local function glyph_from_packed(h)
       local b = getlist(h)
-      return (getid(b)==id_kern) 
-	 and node_next(node_next(node_next(node_next(b)))) or b
+      return (getid(b)==id_kern or (getid(b)==id_whatsit and getsubtype(b)==sid_save) )
+	 and node_next(node_next(node_next(b))) or b
    end
    luatexja.direction.glyph_from_packed = glyph_from_packed
 end
+
+-- adjust
+do
+   local id_adjust = node.id('adjust')
+   function luatexja.direction.check_adjust_direction()
+      start_time_measure('box_primitive_hook')
+      local list_dir = get_adjust_dir_count()
+      local a = tex_nest[tex_nest.ptr].tail
+      local ad = to_direct(a)
+      if a and getid(ad)==id_adjust then
+	 local adj_dir = get_box_dir(ad)
+	 if list_dir~=adj_dir then
+	    ltjb.package_error(
+	       'luatexja',
+	       'Direction Incompatible',
+	       "\\vadjust's argument and outer vlist must have same direction.")
+	    node.direct.last_node()
+	 end
+      end
+      stop_time_measure('box_primitive_hook')
+   end
+end
+
+-- insert
+do
+   local id_ins = node.id('ins')
+   local id_rule = node.id('rule')
+   function luatexja.direction.populate_insertion_dir_whatsit()
+      start_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 a and getid(ad)==id_ins then
+	 local h = getfield(ad, 'head')
+	 if getid(h)==id_whatsit and
+	    getsubtype(h)==sid_user and getfield(h, 'user_id')==DIR then
+	       local n = h; h = node_remove(h,h)
+	       node_free(n)
+	 end
+	 for box_rule in traverse(h) do
+	    if getid(box_rule)<id_rule then
+	       h = insert_before(h, box_rule, dir_pool[list_dir]())
+	    end
+	 end
+	 ensure_tex_attr(attr_dir, 0)
+	 setfield(ad, 'head', h)
+      end
+      stop_time_measure('box_primitive_hook')
+   end
+end
+
+-- vsplit
+do
+   local split_dir_whatsit
+   local function dir_adjust_vpack(h, gc)
+      start_time_measure('direction_vpack')
+      local hd = to_direct(h)
+      if gc=='split_keep' then
+	 -- supply dir_whatsit
+	 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
+	 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)
+	 end
+	 split_dir_whatsit=nil
+      elseif gc=='preamble' then
+	 split_dir_whatsit=nil
+      else
+	 adjust_badness(hd)
+	 hd = process_dir_node(create_dir_whatsit_vbox(hd, gc), gc)
+	 split_dir_whatsit=nil
+      end
+      stop_time_measure('direction_vpack')
+      return to_node(hd)
+   end
+   ltjb.add_to_callback('vpack_filter',
+			      dir_adjust_vpack,
+			      'ltj.direction', 10000)
+end
+
+do
+   -- supply direction whatsit to the main vertical list "of the next page"
+   local function dir_adjust_pre_output(h, gc)
+      return to_node(create_dir_whatsit_vbox(to_direct(h), gc))
+   end
+   ltjb.add_to_callback('pre_output_filter',
+			      dir_adjust_pre_output,
+			      'ltj.direction', 10000)
+
+   function luatexja.direction.remove_end_whatsit()
+      local h=tex.lists.page_head
+      if h and (not h.next) and
+	 h.id==id_whatsit and h.subtype==sid_user and
+         h.user_id == DIR then
+	    tex.lists.page_head = nil
+	    node.free(h)
+      end
+   end
+end
+
+-- buildpage filter
+do
+   local function dir_adjust_buildpage(info)
+      if info=='box' then
+	 local head = to_direct(tex.lists.contrib_head)
+	 if head then
+	    head = make_dir_whatsit(head,
+				  node_tail(head),
+				  get_dir_count(),
+				  'buildpage')
+	    tex.lists.contrib_head = to_node(head)
+	 end
+      end
+   end
+   ltjb.add_to_callback('buildpage_filter',
+			      dir_adjust_buildpage,
+			      'ltj.direction', 10000)
+end
+
+-- finalize (executed just before \shipout)
+-- we supply correct pdfsavematrix nodes etc. inside dir_node
+do
+   local finalize_inner
+   local function finalize_dir_node(db,new_dir)
+      local b = getlist(db)
+      finalize_inner(b)
+      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
+      for _,v in ipairs(dir_node_aux
+			[get_box_dir(b, dir_yoko)%dir_math_mod][new_dir][getid(b)]) do
+         local cmd, arg, nn = v[1], v[2]
+         if cmd=='kern' then
+            nn = node_new(id_kern)
+            setfield(nn, 'kern', arg(w, h, d, dn_w, dn_h, dn_d))
+         elseif cmd=='whatsit' then
+            nn = node_new(id_whatsit, arg)
+         elseif cmd=='rotate' then
+            nn = node_new(id_whatsit, sid_matrix)
+            setfield(nn, 'data', arg)
+         elseif cmd=='box' then
+            nn = b; setfield(b, 'next', nil)
+            setfield(nn, 'shift', arg(w, h, d, dn_w, dn_h, dn_d))
+         end
+         if db_head then
+            insert_after(db_head, db_tail, nn)
+            db_tail = nn
+         else
+            setfield(db, 'head', nn)
+	    db_head, db_tail = nn, nn
+         end
+      end
+   end
+
+   tex.setattribute(attr_dir, dir_yoko)
+   local shipout_temp =  node_new(id_hlist)
+   tex.setattribute(attr_dir, 0)
+
+   finalize_inner = function (box)
+      for n in traverse(getlist(box)) do
+         local nid = getid(n)
+         if (nid==id_hlist or nid==id_vlist) then
+            local ndir = get_box_dir(n, dir_yoko)
+            if ndir>=dir_node_auto then -- n is dir_node
+               finalize_dir_node(n, ndir%dir_math_mod)
+            else
+               finalize_inner(n)
+            end
+	 end
+      end
+   end
+   local getbox = tex.getbox
+   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)
+      if a_dir~=dir_yoko then
+         local b = create_dir_node(a, a_dir, dir_yoko, false)
+         setfield(b, 'head', a); a = b
+      end
+      setfield(shipout_temp, 'head', a)
+      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