1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
|
--
-- ltj-compat.lua
--
luatexja.load_module 'base'; local ltjb = luatexja.base
luatexja.load_module 'stack'; local ltjs = luatexja.stack
-- load jisx0208 table
local cache_ver = 3
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
local utfchar, floor = utf.char, math.floor
local texwrite, getcount = tex.write, tex.getcount
local cnt_stack = luatexbase.registernumber 'ltj@@stack'
local KSJ = luatexja.stack_table_index.KSJ
local get_stack_table = ltjs.get_stack_table
local function to_kansuji(num)
if not num then num=0; return
elseif num<0 then num = -num; texwrite '-'
end
local s = ""
repeat
s = utfchar(get_stack_table(KSJ + num%10, '', getcount(cnt_stack))) .. s
num=num//10
until num==0
texwrite(s)
end
local function error_invalid_charcode(i)
ltjb.package_error('luatexja',
"invalid character code (".. tostring(i) .. ")",
"I'm going to use 0 instead of that illegal character code.")
end
-- \ucs: 単なる identity
local function from_ucs(i)
if type(i)~='number' then error_invalid_charcode(i); i=0 end
texwrite(i)
end
-- \kuten: 面区点 （それぞれで16進2桁を使用）=> Unicode 符号位置
local function from_kuten(i)
if type(i)~='number' then error_invalid_charcode(i); i=0 end
if (i%256==0)or(i%256>94) then
texwrite '0'
else
texwrite(tostring(jisx0208.table_jisx0208_uptex[(i//256)*94+(i%256)-94] or 0))
end
end
-- \euc: EUC-JP による符号位置 => Unicode 符号位置
local function from_euc(i)
if type(i)~='number' then
error_invalid_charcode(i); 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
local function from_jis(i)
if type(i)~='number' then error_invalid_charcode(i); i=0 end
from_kuten(i-0x2020)
end
-- \sjis: Shift_JIS による符号位置 => Unicode 符号位置
local function from_sjis(i)
if (type(i)~='number') or i>=0x10000 or i<0 then
error_invalid_charcode(i); texwrite '0'; return
end
local c2, c1 = i//256, i%256
local shift_jisx0213_s1a3_table = {
{ [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 (c2 <= 0xF3 or (c2 == 0xF4 and c1 < 0x9F)) then
c2 = 0x100 + shift_jisx0213_s1a3_table[c2 - 0xF0 + 1][(0x9E < c1)];
else -- 78<=k<=94
c2 = c2 * 2 - 413 + 0x100; if 0x9E < c1 then c2=c2+1 end
end
else
if c2<=0x9f then i=0x101 else i=0x181 end
c2 = c2 + c2 - i; if 0x9E < c1 then c2=c2+1 end
end
if c1 < 0x9F then
if c1>0x7f then i=0x40 else i=0x3f end; c1 = c1 - i
else
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 get_stack_table(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
|
