1 /* Access functions for CNS 11643 handling.
2 Copyright (C) 1998-2013 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, see
18 <http://www.gnu.org/licenses/>. */
23 /* Table for CNS 11643, plane 1 to UCS4 conversion. */
24 extern const uint16_t __cns11643l1_to_ucs4_tab[];
25 /* Table for CNS 11643, plane 2 to UCS4 conversion. */
26 extern const uint16_t __cns11643l2_to_ucs4_tab[];
27 /* Table for CNS 11643, plane 3 to UCS4 conversion. */
28 extern const uint32_t __cns11643l3_to_ucs4_tab[];
29 /* Table for CNS 11643, plane 4 to UCS4 conversion. */
30 extern const uint32_t __cns11643l4_to_ucs4_tab[];
31 /* Table for CNS 11643, plane 5 to UCS4 conversion. */
32 extern const uint32_t __cns11643l5_to_ucs4_tab[];
33 /* Table for CNS 11643, plane 6 to UCS4 conversion. */
34 extern const uint32_t __cns11643l6_to_ucs4_tab[];
35 /* Table for CNS 11643, plane 7 to UCS4 conversion. */
36 extern const uint32_t __cns11643l7_to_ucs4_tab[];
37 /* Table for CNS 11643, plane 15 (old) to UCS4 conversion. */
38 extern const uint32_t __cns11643l15_to_ucs4_tab[];
41 static inline uint32_t
42 __attribute ((always_inline))
43 cns11643_to_ucs4 (const unsigned char **s, size_t avail, unsigned char offset)
45 unsigned char ch = *(*s);
51 if (ch < offset || (ch - offset) <= 0x20 || (ch - offset) > 0x30)
52 return __UNKNOWN_10646_CHAR;
58 if ((ch2 - offset) <= 0x20 || (ch2 - offset) >= 0x7f)
59 return __UNKNOWN_10646_CHAR;
62 if ((ch3 - offset) <= 0x20 || (ch3 - offset) >= 0x7f)
63 return __UNKNOWN_10646_CHAR;
65 idx = (ch2 - 0x21 - offset) * 94 + (ch3 - 0x21 - offset);
67 switch (ch - 0x20 - offset)
71 return __UNKNOWN_10646_CHAR;
72 result = __cns11643l1_to_ucs4_tab[idx];
76 return __UNKNOWN_10646_CHAR;
77 result = __cns11643l2_to_ucs4_tab[idx];
81 return __UNKNOWN_10646_CHAR;
82 result = __cns11643l3_to_ucs4_tab[idx];
86 return __UNKNOWN_10646_CHAR;
87 result = __cns11643l4_to_ucs4_tab[idx];
91 return __UNKNOWN_10646_CHAR;
92 result = __cns11643l5_to_ucs4_tab[idx];
96 return __UNKNOWN_10646_CHAR;
97 result = __cns11643l6_to_ucs4_tab[idx];
101 return __UNKNOWN_10646_CHAR;
102 result = __cns11643l7_to_ucs4_tab[idx];
106 return __UNKNOWN_10646_CHAR;
107 result = __cns11643l15_to_ucs4_tab[idx];
110 return __UNKNOWN_10646_CHAR;
116 result = __UNKNOWN_10646_CHAR;
122 /* Tables for the UCS4 -> CNS conversion. */
123 extern const char __cns11643l1_from_ucs4_tab1[][2];
124 extern const char __cns11643l1_from_ucs4_tab2[][2];
125 extern const char __cns11643l1_from_ucs4_tab3[][2];
126 extern const char __cns11643l1_from_ucs4_tab4[][2];
127 extern const char __cns11643l1_from_ucs4_tab5[][2];
128 extern const char __cns11643l1_from_ucs4_tab6[][2];
129 extern const char __cns11643l1_from_ucs4_tab7[][2];
130 extern const char __cns11643l1_from_ucs4_tab8[][2];
131 extern const char __cns11643l1_from_ucs4_tab9[][2];
132 extern const char __cns11643l1_from_ucs4_tab10[][2];
133 extern const char __cns11643l1_from_ucs4_tab11[][2];
134 extern const char __cns11643l1_from_ucs4_tab12[][2];
135 extern const char __cns11643l1_from_ucs4_tab13[][2];
136 extern const char __cns11643l1_from_ucs4_tab14[][2];
137 extern const char __cns11643_from_ucs4p0_tab[][3];
138 extern const char __cns11643_from_ucs4p2_tab[][3];
139 extern const char __cns11643_from_ucs4p2c_tab[][3];
143 __attribute ((always_inline))
144 ucs4_to_cns11643 (uint32_t wch, unsigned char *s, size_t avail)
146 unsigned int ch = (unsigned int) wch;
148 const char *cp = buf;
154 cp = __cns11643l1_from_ucs4_tab1[ch - 0xa7];
156 case 0x2c7 ... 0x2d9:
157 cp = __cns11643l1_from_ucs4_tab2[ch - 0x2c7];
159 case 0x391 ... 0x3c9:
160 cp = __cns11643l1_from_ucs4_tab3[ch - 0x391];
162 case 0x2013 ... 0x203e:
163 cp = __cns11643l1_from_ucs4_tab4[ch - 0x2013];
174 case 0x2160 ... 0x2169:
176 buf[1] = '\x2b' + (ch - 0x2160);
178 case 0x2170 ... 0x2179:
180 buf[1] = '\x35' + (ch - 0x2170);
182 case 0x2190 ... 0x2199:
183 cp = __cns11643l1_from_ucs4_tab5[ch - 0x2190];
185 case 0x2215 ... 0x2267:
186 cp = __cns11643l1_from_ucs4_tab6[ch - 0x2215];
194 case 0x2400 ... 0x2421:
195 cp = __cns11643l1_from_ucs4_tab7[ch - 0x2400];
197 case 0x2460 ... 0x247d:
198 cp = __cns11643l1_from_ucs4_tab8[ch - 0x2460];
200 case 0x2500 ... 0x2642:
201 cp = __cns11643l1_from_ucs4_tab9[ch - 0x2500];
203 case 0x3000 ... 0x3029:
204 cp = __cns11643l1_from_ucs4_tab10[ch - 0x3000];
209 case 0x3105 ... 0x3129:
211 buf[1] = '\x47' + (ch - 0x3105);
216 case 0x338e ... 0x33d5:
217 cp = __cns11643l1_from_ucs4_tab11[ch - 0x338e];
219 case 0x4e00 ... 0x9f9c:
220 cp = __cns11643l1_from_ucs4_tab12[ch - 0x4e00];
223 /* FALLTHROUGH. Let's try the other planes. */
224 case 0x3400 ... 0x4dff:
225 case 0x9f9d ... 0x9fa5:
226 /* Let's try the other planes. */
228 cp = __cns11643_from_ucs4p0_tab[ch - 0x3400];
234 case 0xfe30 ... 0xfe6b:
235 cp = __cns11643l1_from_ucs4_tab13[ch - 0xfe30];
237 case 0xff01 ... 0xff5d:
238 cp = __cns11643l1_from_ucs4_tab14[ch - 0xff01];
249 case 0x20000 ... 0x2a6d6:
251 cp = __cns11643_from_ucs4p2_tab[ch - 0x20000];
253 case 0x2f800 ... 0x2fa1d:
255 cp = __cns11643_from_ucs4p2c_tab[ch - 0x2f800];
258 return __UNKNOWN_10646_CHAR;
262 return __UNKNOWN_10646_CHAR;