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 Lesser General Public
8 License as published by the Free Software Foundation; either
9 version 2.1 of the 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 Lesser General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public
17 License along with the GNU C Library; if not, write to the Free
18 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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,
32 unsigned char ch = *(*s);
36 if (ch < offset || (ch - offset) <= 0x20 || (ch - offset) > 0x7d)
37 return __UNKNOWN_10646_CHAR;
43 if ((ch2 - offset) <= 0x20 || (ch2 - offset) >= 0x7f)
44 return __UNKNOWN_10646_CHAR;
46 idx = (ch - 0x21 - offset) * 94 + (ch2 - 0x21 - offset);
48 return __UNKNOWN_10646_CHAR;
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];
74 ucs4_to_cns11643l1 (uint32_t wch, unsigned char *s, size_t avail)
76 unsigned int ch = (unsigned int) wch;
83 cp = __cns11643l1_from_ucs4_tab1[ch - 0xa7];
86 cp = __cns11643l1_from_ucs4_tab2[ch - 0x2c7];
89 cp = __cns11643l1_from_ucs4_tab3[ch - 0x391];
91 case 0x2013 ... 0x203e:
92 cp = __cns11643l1_from_ucs4_tab4[ch - 0x2013];
103 case 0x2160 ... 0x2169:
105 buf[1] = '\x2b' + (ch - 0x2160);
107 case 0x2170 ... 0x2179:
109 buf[1] = '\x35' + (ch - 0x2170);
111 case 0x2190 ... 0x2199:
112 cp = __cns11643l1_from_ucs4_tab5[ch - 0x2190];
114 case 0x2215 ... 0x2267:
115 cp = __cns11643l1_from_ucs4_tab6[ch - 0x2215];
123 case 0x2400 ... 0x2421:
124 cp = __cns11643l1_from_ucs4_tab7[ch - 0x2400];
126 case 0x2460 ... 0x247d:
127 cp = __cns11643l1_from_ucs4_tab8[ch - 0x2460];
129 case 0x2500 ... 0x2642:
130 cp = __cns11643l1_from_ucs4_tab9[ch - 0x2500];
132 case 0x3000 ... 0x3029:
133 cp = __cns11643l1_from_ucs4_tab10[ch - 0x3000];
138 case 0x3105 ... 0x3129:
140 buf[1] = '\x47' + (ch - 0x3105);
145 case 0x338e ... 0x33d5:
146 cp = __cns11643l1_from_ucs4_tab11[ch - 0x338e];
148 case 0x4e00 ... 0x9f9c:
149 cp = __cns11643l1_from_ucs4_tab12[ch - 0x4e00];
151 case 0xfe30 ... 0xfe6b:
152 cp = __cns11643l1_from_ucs4_tab13[ch - 0xfe30];
154 case 0xff01 ... 0xff5d:
155 cp = __cns11643l1_from_ucs4_tab14[ch - 0xff01];
167 return __UNKNOWN_10646_CHAR;
171 return __UNKNOWN_10646_CHAR;