--
--- luatexja/compat.lua
+-- luatexja/ltj-compat.lua
--
-luatexbase.provides_module({
- name = 'luatexja.compat',
- date = '2011/06/03',
- version = '0.1',
- description = 'Partial implementation of primitives of pTeX',
-})
-module('luatexja.compat', package.seeall)
-local err, warn, info, log = luatexbase.errwarinf(_NAME)
-luatexja.load_module('base'); local ltjb = luatexja.base
-luatexja.load_module('stack'); local ltjs = luatexja.stack
+luatexja.load_module('base'); local ltjb = luatexja.base
+luatexja.load_module('stack'); local ltjs = luatexja.stack
+local stack_table_index = luatexja.stack_table_index
+
+-- load jisx0208 table
+local cache_ver = 2
+
+local cache_outdate_fn = function (t) return t.version~=cache_ver end
+local jisx0208 = ltjb.load_cache('ltj-jisx0208',cache_outdate_fn)
+if not jisx0208 then -- make cache
+ jisx0208 = require('ltj-jisx0208.lua')
+ ltjb.save_cache_luc('ltj-jisx0208', jisx0208)
+end
+
-- \kuten, \jis, \euc, \sjis, \ucs, \kansuji
-function to_kansuji(num)
+local function to_kansuji(num)
if not num then num=0; return
- elseif num<0 then
+ elseif num<0 then
num = -num; tex.write('-')
end
local s = ""
while num~=0 do
s = utf.char(
- ltjs.get_penalty_table('ksj', num%10,
+ ltjs.get_stack_table(luatexja.stack_table_index.KSJ + num%10,
'', tex.getcount('ltj@@stack'))) .. s
num=math.floor(num/10)
end
end
-- \ucs: 単なる identity
-function from_ucs(i)
+local function from_ucs(i)
+ if type(i)~='number' then
+ ltjb.package_error('luatexja',
+ "invalid character code (".. tostring(i) .. ")",
+ "I'm going to use 0 instead of that illegal character code.")
+ i=0
+ end
tex.write(i)
end
-- \kuten: 面区点 (それぞれで16進2桁を使用)=> Unicode 符号位置
-function from_kuten(i)
- if not i then i=0 end
- tex.write(tostring(luatexja.jisx0208.table_jisx0208_uptex[i]) or '0')
+local function from_kuten(i)
+ if type(i)~='number' then
+ ltjb.package_error('luatexja',
+ "invalid character code (".. tostring(i) .. ")",
+ "I'm going to use 0 instead of that illegal character code.")
+ i=0
+ end
+ tex.write(tostring(jisx0208.table_jisx0208_uptex[i] or 0))
end
-- \euc: EUC-JP による符号位置 => Unicode 符号位置
-function from_euc(i)
- if not i then i=0
- elseif i>=0x10000 or i<0xa0a0 then
+local function from_euc(i)
+ if type(i)~='number' then
+ ltjb.package_error('luatexja',
+ "invalid character code (".. tostring(i) .. ")",
+ "I'm going to use 0 instead of that illegal character code.")
+ i=0
+ elseif i>=0x10000 or i<0xa0a0 then
i=0
end
from_kuten(i-0xa0a0)
end
-- \jis: ISO-2022-JP による符号位置 => Unicode 符号位置
-function from_jis(i)
- if (not i) or i>=0x10000 or i<0 then
+local function from_jis(i)
+ if (type(i)~='number') or i>=0x10000 or i<0 then
+ ltjb.package_error('luatexja',
+ "invalid character code (".. tostring(i) .. ")",
+ "I'm going to use 0 instead of that illegal character code.")
i=0
end
from_kuten(i-0x2020)
end
-- \sjis: Shift_JIS による符号位置 => Unicode 符号位置
-function from_sjis(i)
- if (not i) or i>=0x10000 or i<0 then
- tex.write('0'); return
+local function from_sjis(i)
+ if (type(i)~='number') or i>=0x10000 or i<0 then
+ ltjb.package_error('luatexja',
+ "invalid character code (".. tostring(i) .. ")",
+ "I'm going to use 0 instead of that illegal character code.")
+ tex.write('0'); return
end
local c2 = math.floor(i/256)
local c1 = i%256
local shift_jisx0213_s1a3_table = {
- { [false]= 1, [true]= 8},
- { [false]= 3, [true]= 4},
- { [false]= 5, [true]=12},
- { [false]=13, [true]=14},
+ { [false]= 1, [true]= 8},
+ { [false]= 3, [true]= 4},
+ { [false]= 5, [true]=12},
+ { [false]=13, [true]=14},
{ [false]=15 } }
if c2 >= 0x81 then
if c2 >= 0xF0 then -- this if block won't be true
if c1>0x7f then i=0x40 else i=0x3f end
c1 = c1 - i
else
- c1 = c1 - 0x7e
+ c1 = c1 - 0x9e
end
from_kuten(c2*256+c1)
end
end
+
+luatexja.binary_pars.kansujichar = function(c, t)
+ if type(c)~='number' or c<0 or c>9 then
+ ltjb.package_error('luatexja',
+ 'Invalid KANSUJI number (' .. tostring(c) .. ')',
+ 'A KANSUJI number should be in the range 0..9.\n'..
+ 'So I changed this one to zero.')
+ c=0
+ end
+ return ltjs.get_stack_table(stack_table_index.KSJ + c, 0, t)
+end
+
+
+local t = {
+ from_euc = from_euc,
+ from_kuten = from_kuten,
+ from_jis = from_jis,
+ from_sjis = from_sjis,
+ from_ucs = from_ucs,
+ to_kansuji = to_kansuji,
+}
+luatexja.compat = t