2 -- luatexja/inputbuf.lua
4 luatexbase.provides_module({
5 name = 'luatexja.inputbuf',
8 description = 'Supressing a space by newline after Japanese characters',
10 module('luatexja.inputbuf', package.seeall)
11 local err, warn, info, log = luatexbase.errwarinf(_NAME)
13 luatexja.load_module('charrange'); local ltjc = luatexja.charrange
15 local node_new = node.new
16 local id_glyph = node.id('glyph')
18 --- the following function is modified from jafontspec.lua (by K. Maeda).
19 --- Instead of "%", we use U+FFFFF for suppressing spaces.
20 function add_comment(buffer)
21 local i = utf.len(buffer)
22 while (i>0) and (tex.getcatcode(utf.byte(buffer, i))==1
23 or tex.getcatcode(utf.byte(buffer, i))==2) do
27 local c = utf.byte(buffer, i)
28 local ct = tex.getcatcode(c)
29 local ctl = tex.getcatcode(13) -- endline character
30 if ((ct==11) or (ct==12)) and (ctl==5) then
31 local p = node_new(id_glyph)
33 if ltjc.is_ucs_in_japanese_char(p) then
34 buffer = buffer .. string.char(0xF3,0xBF,0xBF,0xBF) -- U+FFFFF
42 luatexbase.add_to_callback('process_input_buffer',
43 add_comment,'ltj.process_input_buffer')