new package luatexja (24apr)

adapt ctan2tds to deal with it


git-svn-id: svn://tug.org/texlive/trunk@26115 c570f23f-e606-0410-a88d-b1316a301751

1 files changed, 102 insertions, 0 deletions

diff --git a/Master/texmf-dist/tex/luatex/luatexja/ltj-pretreat.lua b/Master/texmf-dist/tex/luatex/luatexja/ltj-pretreat.lua
new file mode 100644
index 00000000000..aa8ddf427b3
--- /dev/null
+++ b/Master/texmf-dist/tex/luatex/luatexja/ltj-pretreat.lua
@@ -0,0 +1,102 @@
+--
+-- luatexja/pretreat.lua
+--
+luatexbase.provides_module({
+  name = 'luatexja.pretreat',
+  date = '2011/06/27',
+  version = '0.1',
+  description = '',
+})
+module('luatexja.pretreat', package.seeall)
+local err, warn, info, log = luatexbase.errwarinf(_NAME)
+
+luatexja.load_module('charrange'); local ltjc = luatexja.charrange
+luatexja.load_module('jfont');     local ltjf = luatexja.jfont
+luatexja.load_module('stack');     local ltjs = luatexja.stack
+
+local has_attr = node.has_attribute
+local set_attr = node.set_attribute
+local unset_attr = node.unset_attribute
+local node_type = node.type
+local node_remove = node.remove
+local node_next = node.next
+local node_free = node.free
+
+local id_glyph = node.id('glyph')
+local id_math = node.id('math')
+local id_whatsit = node.id('whatsit')
+local sid_user = node.subtype('user_defined')
+
+local attr_curjfnt = luatexbase.attributes['ltj@curjfnt']
+local attr_icflag = luatexbase.attributes['ltj@icflag']
+local attr_yablshift = luatexbase.attributes['ltj@yablshift']
+local attr_ykblshift = luatexbase.attributes['ltj@ykblshift']
+
+local ltjf_font_metric_table = ltjf.font_metric_table
+
+------------------------------------------------------------------------
+-- MAIN PROCESS STEP 1: replace fonts
+------------------------------------------------------------------------
+box_stack_level = 0
+-- This is used in jfmglue.lua.
+
+local function suppress_hyphenate_ja(head)
+   local non_math = true
+   for p in node.traverse(head) do
+      if p.id == id_glyph and non_math then
+	 local i = has_attr(p, attr_icflag) or 0
+	 if i==0 and ltjc.is_ucs_in_japanese_char(p) then
+	    local v = has_attr(p, attr_curjfnt)
+	    if v then 
+	       p.font = v 
+	    end
+	    v = has_attr(p, attr_ykblshift)
+	    if v then 
+	       set_attr(p, attr_yablshift, v)
+	    else
+	       unset_attr(p, attr_yablshift)
+	    end
+	    if p.subtype%2==1 then p.subtype = p.subtype - 1 end
+	    -- p.lang=lang_ja
+	 end
+      elseif p.id == id_math then 
+	 non_math = (p.subtype ~= 0)
+      end
+   end
+   lang.hyphenate(head)
+   return head
+end
+
+-- mode: true iff this function is called from hpack_filter
+function set_box_stack_level(head, mode)
+   local box_set = false
+   local p = head
+   local cl = tex.currentgrouplevel + 1
+   for p in node.traverse_id(id_whatsit, head) do
+      if p.subtype==sid_user and p.user_id==30112 then
+	 local g = p
+	 if mode and g.value==cl then box_set = true end
+	 head, p = node_remove(head, g); node_free(g); break
+      end
+   end
+   if box_set then 
+      box_stack_level = tex.getcount('ltj@@stack') + 1 
+   else 
+      box_stack_level = tex.getcount('ltj@@stack') 
+   end
+   return head
+end
+
+-- CALLBACKS
+luatexbase.add_to_callback('hpack_filter', 
+   function (head)
+     return set_box_stack_level(head, true)
+   end,'ltj.hpack_filter_pre',1)
+luatexbase.add_to_callback('pre_linebreak_filter', 
+  function (head)
+     return set_box_stack_level(head, false)
+  end,'ltj.pre_linebreak_filter_pre',1)
+luatexbase.add_to_callback('hyphenate', 
+ function (head,tail)
+    return suppress_hyphenate_ja(head)
+ end,'ltj.hyphenate')