Update.
[glibc.git] / iconvdata / cns11643l1.h
blob6072c8340b82e3052f77d73a0507615444f2ec96
1 /* Access functions for CNS 11643, plane 1 handling.
2 Copyright (C) 1998, 1999, 2000 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Library General Public License as
8 published by the Free Software Foundation; either version 2 of the
9 License, or (at your option) any later version.
11 The GNU C Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Library General Public License for more details.
16 You should have received a copy of the GNU Library General Public
17 License along with the GNU C Library; see the file COPYING.LIB. If not,
18 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
21 #include <stdint.h>
22 #include <gconv.h>
24 /* Table for CNS 11643, plane 1 to UCS4 conversion. */
25 extern const uint16_t __cns11643l1_to_ucs4_tab[];
28 static inline uint32_t
29 cns11643l1_to_ucs4 (const unsigned char **s, size_t avail,
30 unsigned char offset)
32 unsigned char ch = *(*s);
33 unsigned char ch2;
34 int idx;
36 if (ch < offset || (ch - offset) <= 0x20 || (ch - offset) > 0x7d)
37 return __UNKNOWN_10646_CHAR;
39 if (avail < 2)
40 return 0;
42 ch2 = (*s)[1];
43 if ((ch2 - offset) <= 0x20 || (ch2 - offset) >= 0x7f)
44 return __UNKNOWN_10646_CHAR;
46 idx = (ch - 0x21 - offset) * 94 + (ch2 - 0x21 - offset);
47 if (idx > 0x21f2)
48 return __UNKNOWN_10646_CHAR;
50 (*s) += 2;
52 return __cns11643l1_to_ucs4_tab[idx] ?: ((*s) -= 2, __UNKNOWN_10646_CHAR);
56 /* Tables for the UCS4 -> CNS conversion. */
57 extern const char __cns11643l1_from_ucs4_tab1[][2];
58 extern const char __cns11643l1_from_ucs4_tab2[][2];
59 extern const char __cns11643l1_from_ucs4_tab3[][2];
60 extern const char __cns11643l1_from_ucs4_tab4[][2];
61 extern const char __cns11643l1_from_ucs4_tab5[][2];
62 extern const char __cns11643l1_from_ucs4_tab6[][2];
63 extern const char __cns11643l1_from_ucs4_tab7[][2];
64 extern const char __cns11643l1_from_ucs4_tab8[][2];
65 extern const char __cns11643l1_from_ucs4_tab9[][2];
66 extern const char __cns11643l1_from_ucs4_tab10[][2];
67 extern const char __cns11643l1_from_ucs4_tab11[][2];
68 extern const char __cns11643l1_from_ucs4_tab12[][2];
69 extern const char __cns11643l1_from_ucs4_tab13[][2];
70 extern const char __cns11643l1_from_ucs4_tab14[][2];
73 static inline size_t
74 ucs4_to_cns11643l1 (uint32_t wch, unsigned char *s, size_t avail)
76 unsigned int ch = (unsigned int) wch;
77 char buf[2];
78 const char *cp = buf;
80 switch (ch)
82 case 0xa7 ... 0xf7:
83 cp = __cns11643l1_from_ucs4_tab1[ch - 0xa7];
84 break;
85 case 0x2c7 ... 0x2d9:
86 cp = __cns11643l1_from_ucs4_tab2[ch - 0x2c7];
87 break;
88 case 0x391 ... 0x3c9:
89 cp = __cns11643l1_from_ucs4_tab3[ch - 0x391];
90 break;
91 case 0x2013 ... 0x203e:
92 cp = __cns11643l1_from_ucs4_tab4[ch - 0x2013];
93 break;
94 case 0x2103:
95 cp = "\x22\x6a";
96 break;
97 case 0x2105:
98 cp = "\x22\x22";
99 break;
100 case 0x2109:
101 cp = "\x22\x6b";
102 break;
103 case 0x2160 ... 0x2169:
104 buf[0] = '\x24';
105 buf[1] = '\x2b' + (ch - 0x2160);
106 break;
107 case 0x2170 ... 0x2179:
108 buf[0] = '\x26';
109 buf[1] = '\x35' + (ch - 0x2170);
110 break;
111 case 0x2190 ... 0x2199:
112 cp = __cns11643l1_from_ucs4_tab5[ch - 0x2190];
113 break;
114 case 0x2215 ... 0x2267:
115 cp = __cns11643l1_from_ucs4_tab6[ch - 0x2215];
116 break;
117 case 0x22a5:
118 cp = "\x22\x47";
119 break;
120 case 0x22bf:
121 cp = "\x22\x4a";
122 break;
123 case 0x2400 ... 0x2421:
124 cp = __cns11643l1_from_ucs4_tab7[ch - 0x2400];
125 break;
126 case 0x2460 ... 0x247d:
127 cp = __cns11643l1_from_ucs4_tab8[ch - 0x2460];
128 break;
129 case 0x2500 ... 0x2642:
130 cp = __cns11643l1_from_ucs4_tab9[ch - 0x2500];
131 break;
132 case 0x3000 ... 0x3029:
133 cp = __cns11643l1_from_ucs4_tab10[ch - 0x3000];
134 break;
135 case 0x30fb:
136 cp = "\x21\x26";
137 break;
138 case 0x3105 ... 0x3129:
139 buf[0] = '\x25';
140 buf[1] = '\x47' + (ch - 0x3105);
141 break;
142 case 0x32a3:
143 cp = "\x22\x21";
144 break;
145 case 0x338e ... 0x33d5:
146 cp = __cns11643l1_from_ucs4_tab11[ch - 0x338e];
147 break;
148 case 0x4e00 ... 0x9f9c:
149 cp = __cns11643l1_from_ucs4_tab12[ch - 0x4e00];
150 break;
151 case 0xfe30 ... 0xfe6b:
152 cp = __cns11643l1_from_ucs4_tab13[ch - 0xfe30];
153 break;
154 case 0xff01 ... 0xff5d:
155 cp = __cns11643l1_from_ucs4_tab14[ch - 0xff01];
156 break;
157 case 0xffe0:
158 cp = "\x22\x66";
159 break;
160 case 0xffe1:
161 cp = "\x22\x67";
162 break;
163 case 0xffe5:
164 cp = "\x22\x64";
165 break;
166 default:
167 return __UNKNOWN_10646_CHAR;
170 if (cp[0] == '\0')
171 return __UNKNOWN_10646_CHAR;
173 if (avail < 2)
174 return 0;
176 s[0] = cp[0];
177 s[1] = cp[1];
179 return 2;