Added lltjp-everyshi.sty

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

diff --git a/src/ltj-inputbuf.lua b/src/ltj-inputbuf.lua
index d23d21c..0616f4e 100644 (file)
--- a/src/ltj-inputbuf.lua
+++ b/src/ltj-inputbuf.lua
@@ -1,52 +1,56 @@
 --
--- 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 = tex.getcatcode
-local ltjc_is_ucs_in_japanese_char = ltjc.is_ucs_in_japanese_char
+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 (getcatcode(utf.byte(buffer, i))==1 
-                or 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)
-      if c>0x80 then
-        local ct = getcatcode(c)
+      local c = utfbyte(buffer, i)
+      if c>=0x80 then
         local te = tex.endlinechar
-        local ctl = (te ~= -1) and (getcatcode(te)==5) and (getcatcode(0xFFFFF)==14)
         -- Is the catcode of endline character is 5 (end-of-line)?
-        -- Is the catcode of U+FFFFF (new comment char) is 14 (comment)?
-        if ((ct==11) or (ct==12)) and ctl 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
+        if (te ~= -1) and (getcatcode(te)==5) then
+           local ct = getcatcode(c)
+           if (ct==11) or (ct==12) then
+              local lec = getcount('ltjlineendcomment')
+               -- Is the catcode of \ltjlineendcomment (new comment char) is 14 (comment)?
+              if ltjc_is_japanese_char_curlist(c) and (getcatcode(lec)==14) then
+                  stop_time_measure('inputbuf')
+                  return buffer .. utfchar(lec)
+               end
            end
-           node.free(p)
-        end
+         end
       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