ltj-jfmglue.lua: treat glyph_node with \nullfont as a node of ALchar

[luatex-ja/luatexja.git] / src / ltj-inputbuf.lua

diff --git a/src/ltj-inputbuf.lua b/src/ltj-inputbuf.lua
index 4f7c875..9c1f4e1 100644 (file)
--- a/src/ltj-inputbuf.lua
+++ b/src/ltj-inputbuf.lua
@@ -1,45 +1,53 @@
 --
--- luatexja/inputbuf.lua
+-- ltj-inputbuf.lua
 --
-luatexbase.provides_module({
-  name = 'luatexja.inputbuf',
-  date = '2011/04/01',
-  version = '0.1',
-  description = 'Supressing a space by newline after Japanese characters',
-})
-module('luatexja.inputbuf', package.seeall)
-local err, warn, info, log = luatexbase.errwarinf(_NAME)
 
+luatexja.load_module('base');      local ltjb = luatexja.base
 luatexja.load_module('charrange'); local ltjc = luatexja.charrange
 
+require("unicode")
+local utflen = utf.len
+local utfbyte = utf.byte
+local utfchar = utf.char
 local node_new = node.new
+local node_free = node.free
 local id_glyph = node.id('glyph')
+local getcatcode, getcount = tex.getcatcode, tex.getcount
+local ltjc_is_japanese_char_curlist = ltjc.is_japanese_char_curlist
 
 --- the following function is modified from jafontspec.lua (by K. Maeda).
 --- Instead of "%", we use U+FFFFF for suppressing spaces.
-function add_comment(buffer)
-   local i = utf.len(buffer)
-   while (i>0) and (tex.getcatcode(utf.byte(buffer, i))==1 
-                or tex.getcatcode(utf.byte(buffer, i))==2) do
+--DEBUG require"socket"
+local time_line = 0
+local start_time_measure, stop_time_measure
+   = ltjb.start_time_measure, ltjb.stop_time_measure
+local function add_comment(buffer)
+   start_time_measure('inputbuf')
+   local i = utflen(buffer)
+   while (i>0) and (getcatcode(utfbyte(buffer, i))==1
+                or getcatcode(utfbyte(buffer, i))==2) do
       i=i-1
    end
    if i>0 then
-      local c = utf.byte(buffer, i)
-      local ct = tex.getcatcode(c)
-      local ctl = tex.getcatcode(13) -- endline character
-      if ((ct==11) or (ct==12)) and (ctl==5) then
-        local p =  node_new(id_glyph)
-        p.char = c
-        if ltjc.is_ucs_in_japanese_char(p) then
-           buffer = buffer .. string.char(0xF3,0xBF,0xBF,0xBF) -- U+FFFFF
+      local c = utfbyte(buffer, i)
+      if c>=0x80 then
+        local ct = getcatcode(c)
+        local te = tex.endlinechar
+        local ctl = (te ~= -1) and (getcatcode(te)==5) and (getcatcode(getcount('ltjlineendcomment'))==14)
+        -- Is the catcode of endline character is 5 (end-of-line)?
+        -- Is the catcode of \ltjlineendcomment (new comment char) is 14 (comment)?
+        if ((ct==11) or (ct==12)) and ctl then
+           if ltjc_is_japanese_char_curlist(c) then
+              buffer = buffer .. utfchar(getcount('ltjlineendcomment'))
+           end
         end
-        node.free(p)
       end
    end
+   stop_time_measure('inputbuf')
    return buffer
 end
 
-luatexbase.add_to_callback('process_input_buffer', 
+luatexbase.add_to_callback('process_input_buffer',
    add_comment,'ltj.process_input_buffer')
 
---EOF
\ No newline at end of file
+--EOF