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
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
|
/* Access functions for KS C 5601-1992 based encoding conversion.
Copyright (C) 1998 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#ifndef _KSC5601_H
#define _KSC5601_H 1
#define KSC5601_HANGUL 2350
#define KSC5601_HANJA 4888
#define KSC5601_SYMBOL 986
#include <gconv.h>
#include <inttypes.h>
/* Conversion table. */
extern const uint16_t ksc5601_hangul_to_ucs[KSC5601_HANGUL];
extern const uint16_t ksc5601_sym_to_ucs[];
extern const uint16_t ksc5601_sym_from_ucs[KSC5601_SYMBOL][2];
extern const uint16_t ksc5601_hanja_to_ucs[KSC5601_HANJA];
extern const uint16_t ksc5601_hanja_from_ucs[KSC5601_HANJA][2];
/*
static inline wchar_t
ksc5601_to_ucs4 (char **s, size_t avail)
*/
static inline wchar_t
ksc5601_to_ucs4 (uint16_t s)
{
unsigned char ch = s / 256;
unsigned char ch2;
int idx;
/* row 94(0x7e) and row 41(0x49) are user-defined area in KS C 5601 */
if (ch <= 0x20 || ch >= 0x7e || ch == 0x49)
return UNKNOWN_10646_CHAR;
ch2 = s % 256;
if (ch2 <= 0x20 || ch2 >= 0x7f)
return UNKNOWN_10646_CHAR;
idx = (ch - 0x21) * 94 + (ch2 - 0x21);
/* 1410 = 15 * 94 , 3760 = 40 * 94
Hangul in KS C 5601 : row 16 - row 40 */
if (idx >= 1410 && idx < 3760)
return ksc5601_hangul_to_ucs[idx-1410];
else if (idx > 3854)
/* Hanja : row 42 - row 93 : 3854 = 94 * (42-1) */
return ksc5601_hanja_to_ucs[idx-3854];
else
return ksc5601_sym_to_ucs[idx] ?: UNKNOWN_10646_CHAR;
}
static inline size_t
ucs4_to_ksc5601_hangul (wchar_t wch, uint16_t *s)
{
int l=0,m,u=KSC5601_HANGUL-1;
wchar_t try;
while (l <= u)
{
try = (wchar_t) ksc5601_hangul_to_ucs[m=(l+u)/2];
if (try > wch)
u = m - 1;
else if (try < wch)
l= m + 1;
else
{
*s = (uint16_t) ((m / 94) * 256 + m % 94 + 0x3021) ;
return 2;
}
}
return 0;
}
static inline size_t
ucs4_to_ksc5601_hanja (wchar_t wch, uint16_t *s)
{
int l=0,m,u=KSC5601_HANJA-1;
wchar_t try;
while (l <= u)
{
try = (wchar_t) ksc5601_hanja_from_ucs[m=(l+u)/2][0];
if (try > wch)
u=m-1;
else if (try < wch)
l = m + 1;
else
{
*s = ksc5601_hanja_from_ucs[m][1];
return 2;
}
}
return 0;
}
static inline size_t
ucs4_to_ksc5601_sym (wchar_t wch, uint16_t *s)
{
int l = 0;
int m;
int u = KSC5601_SYMBOL - 1;
wchar_t try;
while (l <= u)
{
m = (l + u) / 2;
try = ksc5601_sym_from_ucs[m][0];
if (try > wch)
u = m - 1;
else if (try < wch)
l = m + 1;
else
{
*s = ksc5601_sym_from_ucs[m][1];
return 2;
}
}
return 0;
}
/*
static inline size_t
ucs4_to_ksc5601 (wchar_t wch, char **s, size_t avail)
*/
static inline size_t
ucs4_to_ksc5601 (wchar_t ch, uint16_t *s)
{
*s = (uint16_t) UNKNOWN_10646_CHAR; /* FIXIT */
if (ch >= 0xac00 && ch <= 0xd7a3)
return ucs4_to_ksc5601_hangul (ch, s);
else if (ch >= 0x4e00 && ch <= 0x9fff || ch >= 0xf900 && ch <= 0xfa0b)
return ucs4_to_ksc5601_hanja (ch, s);
else
return ucs4_to_ksc5601_sym (ch, s);
}
#endif /* ksc5601.h */
|
