1 /* Access functions for CNS 11643 handling.
2 Copyright (C) 1998,1999,2000,2001,2002,2003,2007
3 Free Software Foundation, Inc.
4 This file is part of the GNU C Library.
5 Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
7 The GNU C Library is free software; you can redistribute it and/or
8 modify it under the terms of the GNU Lesser General Public
9 License as published by the Free Software Foundation; either
10 version 2.1 of the License, or (at your option) any later version.
12 The GNU C Library is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 Lesser General Public License for more details.
17 You should have received a copy of the GNU Lesser General Public
18 License along with the GNU C Library; if not, write to the Free
19 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
25 /* Table for CNS 11643, plane 1 to UCS4 conversion. */
26 extern const uint16_t __cns11643l1_to_ucs4_tab[];
27 /* Table for CNS 11643, plane 2 to UCS4 conversion. */
28 extern const uint16_t __cns11643l2_to_ucs4_tab[];
29 /* Table for CNS 11643, plane 3 to UCS4 conversion. */
30 extern const uint32_t __cns11643l3_to_ucs4_tab[];
31 /* Table for CNS 11643, plane 4 to UCS4 conversion. */
32 extern const uint32_t __cns11643l4_to_ucs4_tab[];
33 /* Table for CNS 11643, plane 5 to UCS4 conversion. */
34 extern const uint32_t __cns11643l5_to_ucs4_tab[];
35 /* Table for CNS 11643, plane 6 to UCS4 conversion. */
36 extern const uint32_t __cns11643l6_to_ucs4_tab[];
37 /* Table for CNS 11643, plane 7 to UCS4 conversion. */
38 extern const uint32_t __cns11643l7_to_ucs4_tab[];
39 /* Table for CNS 11643, plane 15 (old) to UCS4 conversion. */
40 extern const uint32_t __cns11643l15_to_ucs4_tab[];
43 static inline uint32_t
44 __attribute ((always_inline))
45 cns11643_to_ucs4 (const unsigned char **s, size_t avail, unsigned char offset)
47 unsigned char ch = *(*s);
53 if (ch < offset || (ch - offset) <= 0x20 || (ch - offset) > 0x30)
54 return __UNKNOWN_10646_CHAR;
60 if ((ch2 - offset) <= 0x20 || (ch2 - offset) >= 0x7f)
61 return __UNKNOWN_10646_CHAR;
64 if ((ch3 - offset) <= 0x20 || (ch3 - offset) >= 0x7f)
65 return __UNKNOWN_10646_CHAR;
67 idx = (ch2 - 0x21 - offset) * 94 + (ch3 - 0x21 - offset);
69 switch (ch - 0x20 - offset)
73 return __UNKNOWN_10646_CHAR;
74 result = __cns11643l1_to_ucs4_tab[idx];
78 return __UNKNOWN_10646_CHAR;
79 result = __cns11643l2_to_ucs4_tab[idx];
83 return __UNKNOWN_10646_CHAR;
84 result = __cns11643l3_to_ucs4_tab[idx];
88 return __UNKNOWN_10646_CHAR;
89 result = __cns11643l4_to_ucs4_tab[idx];
93 return __UNKNOWN_10646_CHAR;
94 result = __cns11643l5_to_ucs4_tab[idx];
98 return __UNKNOWN_10646_CHAR;
99 result = __cns11643l6_to_ucs4_tab[idx];
103 return __UNKNOWN_10646_CHAR;
104 result = __cns11643l7_to_ucs4_tab[idx];
108 return __UNKNOWN_10646_CHAR;
109 result = __cns11643l15_to_ucs4_tab[idx];
112 return __UNKNOWN_10646_CHAR;
118 result = __UNKNOWN_10646_CHAR;
124 /* Tables for the UCS4 -> CNS conversion. */
125 extern const char __cns11643l1_from_ucs4_tab1[][2];
126 extern const char __cns11643l1_from_ucs4_tab2[][2];
127 extern const char __cns11643l1_from_ucs4_tab3[][2];
128 extern const char __cns11643l1_from_ucs4_tab4[][2];
129 extern const char __cns11643l1_from_ucs4_tab5[][2];
130 extern const char __cns11643l1_from_ucs4_tab6[][2];
131 extern const char __cns11643l1_from_ucs4_tab7[][2];
132 extern const char __cns11643l1_from_ucs4_tab8[][2];
133 extern const char __cns11643l1_from_ucs4_tab9[][2];
134 extern const char __cns11643l1_from_ucs4_tab10[][2];
135 extern const char __cns11643l1_from_ucs4_tab11[][2];
136 extern const char __cns11643l1_from_ucs4_tab12[][2];
137 extern const char __cns11643l1_from_ucs4_tab13[][2];
138 extern const char __cns11643l1_from_ucs4_tab14[][2];
139 extern const char __cns11643_from_ucs4p0_tab[][3];
140 extern const char __cns11643_from_ucs4p2_tab[][3];
141 extern const char __cns11643_from_ucs4p2c_tab[][3];
145 __attribute ((always_inline))
146 ucs4_to_cns11643 (uint32_t wch, unsigned char *s, size_t avail)
148 unsigned int ch = (unsigned int) wch;
150 const char *cp = buf;
156 cp = __cns11643l1_from_ucs4_tab1[ch - 0xa7];
158 case 0x2c7 ... 0x2d9:
159 cp = __cns11643l1_from_ucs4_tab2[ch - 0x2c7];
161 case 0x391 ... 0x3c9:
162 cp = __cns11643l1_from_ucs4_tab3[ch - 0x391];
164 case 0x2013 ... 0x203e:
165 cp = __cns11643l1_from_ucs4_tab4[ch - 0x2013];
176 case 0x2160 ... 0x2169:
178 buf[1] = '\x2b' + (ch - 0x2160);
180 case 0x2170 ... 0x2179:
182 buf[1] = '\x35' + (ch - 0x2170);
184 case 0x2190 ... 0x2199:
185 cp = __cns11643l1_from_ucs4_tab5[ch - 0x2190];
187 case 0x2215 ... 0x2267:
188 cp = __cns11643l1_from_ucs4_tab6[ch - 0x2215];
196 case 0x2400 ... 0x2421:
197 cp = __cns11643l1_from_ucs4_tab7[ch - 0x2400];
199 case 0x2460 ... 0x247d:
200 cp = __cns11643l1_from_ucs4_tab8[ch - 0x2460];
202 case 0x2500 ... 0x2642:
203 cp = __cns11643l1_from_ucs4_tab9[ch - 0x2500];
205 case 0x3000 ... 0x3029:
206 cp = __cns11643l1_from_ucs4_tab10[ch - 0x3000];
211 case 0x3105 ... 0x3129:
213 buf[1] = '\x47' + (ch - 0x3105);
218 case 0x338e ... 0x33d5:
219 cp = __cns11643l1_from_ucs4_tab11[ch - 0x338e];
221 case 0x4e00 ... 0x9f9c:
222 cp = __cns11643l1_from_ucs4_tab12[ch - 0x4e00];
225 /* FALLTHROUGH. Let's try the other planes. */
226 case 0x3400 ... 0x4dff:
227 case 0x9f9d ... 0x9fa5:
228 /* Let's try the other planes. */
230 cp = __cns11643_from_ucs4p0_tab[ch - 0x3400];
236 case 0xfe30 ... 0xfe6b:
237 cp = __cns11643l1_from_ucs4_tab13[ch - 0xfe30];
239 case 0xff01 ... 0xff5d:
240 cp = __cns11643l1_from_ucs4_tab14[ch - 0xff01];
251 case 0x20000 ... 0x2a6d6:
253 cp = __cns11643_from_ucs4p2_tab[ch - 0x20000];
255 case 0x2f800 ... 0x2fa1d:
257 cp = __cns11643_from_ucs4p2c_tab[ch - 0x2f800];
260 return __UNKNOWN_10646_CHAR;
264 return __UNKNOWN_10646_CHAR;