Fixed that luatexja.append_italic() created orphaned attribute lists.

 21440 words of node memory still in use:
   21 hlist, 2 vlist, 6 rule, 5 glue, 116 kern, 4 penalty, 2 glyph, 4906 attribu
te, 2452 glue_spec, 252 attribute_list, 3 action, 1 write, 1 pdf_literal, 1 pdf_
setmatrix, 2 pdf_save, 2 pdf_restore, 37 user_defined nodes
   avail lists: 1:5,2:224875,3:3624,4:16650,5:6634,6:4956,7:10015,8:81,9:9416,10
:680

diff --git a/src/ltj-jfont.lua b/src/ltj-jfont.lua
index d1b6a01..a3d5505 100644 (file)
--- a/src/ltj-jfont.lua
+++ b/src/ltj-jfont.lua
@@ -3,7 +3,7 @@
 --
 luatexbase.provides_module({
   name = 'luatexja.jfont',
-  date = '2014/10/03',
+  date = '2015/02/08',
   description = 'Loader for Japanese fonts',
 })
 module('luatexja.jfont', package.seeall)
@@ -18,8 +18,6 @@ local Dnode = node.direct or node
 
 local setfield = (Dnode ~= node) and Dnode.setfield or function(n, i, c) n[i] = c end
 local getid = (Dnode ~= node) and Dnode.getid or function(n) return n.id end
-local getfont = (Dnode ~= node) and Dnode.getfont or function(n) return n.font end
-local getchar = (Dnode ~= node) and Dnode.getchar or function(n) return n.char end
 
 local nullfunc = function(n) return n end
 local to_direct = (Dnode ~= node) and Dnode.todirect or nullfunc
@@ -28,7 +26,6 @@ local node_new = Dnode.new
 local node_free = Dnode.free
 local has_attr = Dnode.has_attribute
 local set_attr = Dnode.set_attribute
-local node_write = Dnode.write
 local round = tex.round
 local font_getfont = font.getfont
 
@@ -40,7 +37,6 @@ local id_kern = node.id('kern')
 local id_glue_spec = node.id('glue_spec')
 local id_glue = node.id('glue')
 local cat_lp = luatexbase.catcodetables['latex-package']
-local ITALIC       = luatexja.icflag_table.ITALIC
 local FROM_JFM     = luatexja.icflag_table.FROM_JFM
 
 ------------------------------------------------------------------------
@@ -154,6 +150,7 @@ do
 
    update_jfm_cache = function (j,sz)
       if metrics[j].size_cache[sz] then return end
+      --local TEMP = node_new(id_kern)
       local t = {}
       metrics[j].size_cache[sz] = t
       t.chars = metrics[j].chars
@@ -186,6 +183,7 @@ do
       t.zw = round(metrics[j].zw*sz)
       t.zh = round(metrics[j].zh*sz)
       t.size = sz
+      --node_free(TEMP)
    end
 end
 
@@ -863,33 +861,38 @@ end
 -- MISC
 ------------------------------------------------------------------------
 do
+   local getfont = (Dnode ~= node) and Dnode.getfont or function(n) return n.font end
+   local getchar = (Dnode ~= node) and Dnode.getchar or function(n) return n.char end
    local get_dir_count = ltjd.get_dir_count
    local is_ucs_in_japanese_char = ltjc.is_ucs_in_japanese_char_direct
    local ensure_tex_attr = ltjb.ensure_tex_attr
+   local node_write = Dnode.write
    local font = font
+   local ITALIC       = luatexja.icflag_table.ITALIC
    -- EXT: italic correction
    function append_italic()
       local p = to_direct(tex.nest[tex.nest.ptr].tail)
+      local TEMP = node_new(id_kern)
       if p and getid(p)==id_glyph then
-        local f = getfont(p)
-        local g = node_new(id_kern)
-        setfield(g, 'subtype', 1)
-        set_attr(g, attr_icflag, ITALIC)
         if is_ucs_in_japanese_char(p) then
-           f = has_attr(p, (get_dir_count()==dir_tate) and attr_curtfnt or attr_curjfnt)
-           local j = font_metric_table[f]
+           local j = font_metric_table[
+              has_attr(p, (get_dir_count()==dir_tate) and attr_curtfnt or attr_curjfnt)
+              ]
+           local g = node_new(id_kern)
+           setfield(g, 'subtype', 1); set_attr(g, attr_icflag, ITALIC)
            setfield(g, 'kern', j.char_type[find_char_class(getchar(p), j)].italic)
+           node_write(g); ensure_tex_attr(attr_icflag, 0)
         else
+           local f = getfont(p)
            local h = font_getfont(f) or font.fonts[f]
            if h then
+              local g = node_new(id_kern)
+              setfield(g, 'subtype', 1); set_attr(g, attr_icflag, ITALIC)
               setfield(g, 'kern', h.characters[getchar(p)].italic)
-           else
-              ensure_tex_attr(attr_icflag, 0)
-              return node_free(g)
+              node_write(g); ensure_tex_attr(attr_icflag, 0)
            end
         end
-        node_write(g)
-        ensure_tex_attr(attr_icflag, 0)
       end
+      node_free(TEMP)
    end
 end