citrus_euctw.c revision 1.1.2.3
1 1.1.2.3 nathanw /* $NetBSD: citrus_euctw.c,v 1.1.2.3 2002/04/25 04:01:40 nathanw Exp $ */ 2 1.1.2.2 nathanw 3 1.1.2.2 nathanw /*- 4 1.1.2.2 nathanw * Copyright (c)2002 Citrus Project, 5 1.1.2.2 nathanw * All rights reserved. 6 1.1.2.2 nathanw * 7 1.1.2.2 nathanw * Redistribution and use in source and binary forms, with or without 8 1.1.2.2 nathanw * modification, are permitted provided that the following conditions 9 1.1.2.2 nathanw * are met: 10 1.1.2.2 nathanw * 1. Redistributions of source code must retain the above copyright 11 1.1.2.2 nathanw * notice, this list of conditions and the following disclaimer. 12 1.1.2.2 nathanw * 2. Redistributions in binary form must reproduce the above copyright 13 1.1.2.2 nathanw * notice, this list of conditions and the following disclaimer in the 14 1.1.2.2 nathanw * documentation and/or other materials provided with the distribution. 15 1.1.2.2 nathanw * 16 1.1.2.2 nathanw * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 1.1.2.2 nathanw * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 1.1.2.2 nathanw * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 1.1.2.2 nathanw * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 1.1.2.2 nathanw * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 1.1.2.2 nathanw * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 1.1.2.2 nathanw * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 1.1.2.2 nathanw * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 1.1.2.2 nathanw * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 1.1.2.2 nathanw * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 1.1.2.2 nathanw * SUCH DAMAGE. 27 1.1.2.2 nathanw */ 28 1.1.2.2 nathanw 29 1.1.2.2 nathanw /*- 30 1.1.2.2 nathanw * Copyright (c)1999 Citrus Project, 31 1.1.2.2 nathanw * All rights reserved. 32 1.1.2.2 nathanw * 33 1.1.2.2 nathanw * Redistribution and use in source and binary forms, with or without 34 1.1.2.2 nathanw * modification, are permitted provided that the following conditions 35 1.1.2.2 nathanw * are met: 36 1.1.2.2 nathanw * 1. Redistributions of source code must retain the above copyright 37 1.1.2.2 nathanw * notice, this list of conditions and the following disclaimer. 38 1.1.2.2 nathanw * 2. Redistributions in binary form must reproduce the above copyright 39 1.1.2.2 nathanw * notice, this list of conditions and the following disclaimer in the 40 1.1.2.2 nathanw * documentation and/or other materials provided with the distribution. 41 1.1.2.2 nathanw * 42 1.1.2.2 nathanw * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 43 1.1.2.2 nathanw * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 44 1.1.2.2 nathanw * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 45 1.1.2.2 nathanw * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 46 1.1.2.2 nathanw * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 47 1.1.2.2 nathanw * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 48 1.1.2.2 nathanw * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 49 1.1.2.2 nathanw * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 50 1.1.2.2 nathanw * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 51 1.1.2.2 nathanw * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 52 1.1.2.2 nathanw * SUCH DAMAGE. 53 1.1.2.2 nathanw * 54 1.1.2.2 nathanw * $Citrus: xpg4dl/FreeBSD/lib/libc/locale/euctw.c,v 1.13 2001/06/21 01:51:44 yamt Exp $ 55 1.1.2.2 nathanw */ 56 1.1.2.2 nathanw 57 1.1.2.2 nathanw #include <sys/cdefs.h> 58 1.1.2.2 nathanw #if defined(LIBC_SCCS) && !defined(lint) 59 1.1.2.3 nathanw __RCSID("$NetBSD: citrus_euctw.c,v 1.1.2.3 2002/04/25 04:01:40 nathanw Exp $"); 60 1.1.2.2 nathanw #endif /* LIBC_SCCS and not lint */ 61 1.1.2.2 nathanw 62 1.1.2.2 nathanw #include <assert.h> 63 1.1.2.2 nathanw #include <errno.h> 64 1.1.2.2 nathanw #include <string.h> 65 1.1.2.2 nathanw #include <stdio.h> 66 1.1.2.2 nathanw #include <stdlib.h> 67 1.1.2.2 nathanw #include <stddef.h> 68 1.1.2.2 nathanw #include <locale.h> 69 1.1.2.2 nathanw #include <wchar.h> 70 1.1.2.2 nathanw #include <sys/types.h> 71 1.1.2.2 nathanw #include <limits.h> 72 1.1.2.2 nathanw #include "citrus_module.h" 73 1.1.2.2 nathanw #include "citrus_ctype.h" 74 1.1.2.2 nathanw #include "citrus_euctw.h" 75 1.1.2.2 nathanw 76 1.1.2.2 nathanw 77 1.1.2.2 nathanw /* ---------------------------------------------------------------------- 78 1.1.2.2 nathanw * private stuffs used by templates 79 1.1.2.2 nathanw */ 80 1.1.2.2 nathanw 81 1.1.2.2 nathanw typedef struct { 82 1.1.2.2 nathanw char ch[4]; 83 1.1.2.2 nathanw int chlen; 84 1.1.2.2 nathanw } _EUCTWState; 85 1.1.2.2 nathanw 86 1.1.2.2 nathanw typedef struct { 87 1.1.2.2 nathanw int dummy; 88 1.1.2.2 nathanw } _EUCTWEncodingInfo; 89 1.1.2.2 nathanw typedef struct { 90 1.1.2.2 nathanw _EUCTWEncodingInfo ei; 91 1.1.2.2 nathanw struct { 92 1.1.2.2 nathanw /* for future multi-locale facility */ 93 1.1.2.2 nathanw _EUCTWState s_mblen; 94 1.1.2.2 nathanw _EUCTWState s_mbrlen; 95 1.1.2.2 nathanw _EUCTWState s_mbrtowc; 96 1.1.2.2 nathanw _EUCTWState s_mbtowc; 97 1.1.2.2 nathanw _EUCTWState s_mbsrtowcs; 98 1.1.2.2 nathanw _EUCTWState s_wcrtomb; 99 1.1.2.2 nathanw _EUCTWState s_wcsrtombs; 100 1.1.2.2 nathanw _EUCTWState s_wctomb; 101 1.1.2.2 nathanw } states; 102 1.1.2.2 nathanw } _EUCTWCTypeInfo; 103 1.1.2.2 nathanw 104 1.1.2.2 nathanw #define _SS2 0x008e 105 1.1.2.2 nathanw #define _SS3 0x008f 106 1.1.2.2 nathanw 107 1.1.2.2 nathanw #define _CEI_TO_EI(_cei_) (&(_cei_)->ei) 108 1.1.2.2 nathanw #define _CEI_TO_STATE(_cei_, _func_) (_cei_)->states.s_##_func_ 109 1.1.2.2 nathanw 110 1.1.2.2 nathanw #define _FUNCNAME(m) _citrus_EUCTW_##m 111 1.1.2.2 nathanw #define _ENCODING_INFO _EUCTWEncodingInfo 112 1.1.2.2 nathanw #define _CTYPE_INFO _EUCTWCTypeInfo 113 1.1.2.2 nathanw #define _ENCODING_STATE _EUCTWState 114 1.1.2.3 nathanw #define _ENCODING_MB_CUR_MAX(_ei_) 4 115 1.1.2.2 nathanw #define _ENCODING_IS_STATE_DEPENDENT 0 116 1.1.2.3 nathanw #define _STATE_NEEDS_EXPLICIT_INIT(_ps_) 0 117 1.1.2.2 nathanw 118 1.1.2.2 nathanw static __inline int 119 1.1.2.2 nathanw _citrus_EUCTW_cs(u_int c) 120 1.1.2.2 nathanw { 121 1.1.2.2 nathanw c &= 0xff; 122 1.1.2.2 nathanw 123 1.1.2.2 nathanw return ((c & 0x80) ? (c == _SS2 ? 2 : 1) : 0); 124 1.1.2.2 nathanw } 125 1.1.2.2 nathanw 126 1.1.2.2 nathanw static __inline int 127 1.1.2.2 nathanw _citrus_EUCTW_count(int cs) 128 1.1.2.2 nathanw { 129 1.1.2.2 nathanw switch (cs) { 130 1.1.2.2 nathanw case 0: 131 1.1.2.2 nathanw return 1; 132 1.1.2.2 nathanw case 1: 133 1.1.2.2 nathanw return 2; 134 1.1.2.2 nathanw case 2: 135 1.1.2.2 nathanw return 4; 136 1.1.2.2 nathanw case 3: 137 1.1.2.2 nathanw abort(); 138 1.1.2.2 nathanw /*NOTREACHED*/ 139 1.1.2.2 nathanw } 140 1.1.2.2 nathanw return 0; 141 1.1.2.2 nathanw } 142 1.1.2.2 nathanw 143 1.1.2.2 nathanw static __inline void 144 1.1.2.2 nathanw /*ARGSUSED*/ 145 1.1.2.2 nathanw _citrus_EUCTW_init_state(_EUCTWEncodingInfo * __restrict ei, 146 1.1.2.2 nathanw _EUCTWState * __restrict s) 147 1.1.2.2 nathanw { 148 1.1.2.2 nathanw memset(s, 0, sizeof(*s)); 149 1.1.2.2 nathanw } 150 1.1.2.2 nathanw 151 1.1.2.2 nathanw static __inline void 152 1.1.2.2 nathanw /*ARGSUSED*/ 153 1.1.2.2 nathanw _citrus_EUCTW_pack_state(_EUCTWEncodingInfo * __restrict ei, 154 1.1.2.2 nathanw void * __restrict pspriv, 155 1.1.2.2 nathanw const _EUCTWState * __restrict s) 156 1.1.2.2 nathanw { 157 1.1.2.2 nathanw memcpy(pspriv, (const void *)s, sizeof(*s)); 158 1.1.2.2 nathanw } 159 1.1.2.2 nathanw 160 1.1.2.2 nathanw static __inline void 161 1.1.2.2 nathanw /*ARGSUSED*/ 162 1.1.2.2 nathanw _citrus_EUCTW_unpack_state(_EUCTWEncodingInfo * __restrict ei, 163 1.1.2.2 nathanw _EUCTWState * __restrict s, 164 1.1.2.2 nathanw const void * __restrict pspriv) 165 1.1.2.2 nathanw { 166 1.1.2.2 nathanw memcpy((void *)s, pspriv, sizeof(*s)); 167 1.1.2.2 nathanw } 168 1.1.2.2 nathanw 169 1.1.2.2 nathanw static int 170 1.1.2.2 nathanw /*ARGSUSED*/ 171 1.1.2.2 nathanw _citrus_EUCTW_stdencoding_init(_EUCTWEncodingInfo * __restrict ei, 172 1.1.2.2 nathanw const void * __restrict var, size_t lenvar) 173 1.1.2.2 nathanw { 174 1.1.2.2 nathanw 175 1.1.2.2 nathanw _DIAGASSERT(ei != NULL); 176 1.1.2.2 nathanw 177 1.1.2.2 nathanw memset((void *)ei, 0, sizeof(*ei)); 178 1.1.2.2 nathanw 179 1.1.2.2 nathanw return 0; 180 1.1.2.2 nathanw } 181 1.1.2.2 nathanw 182 1.1.2.2 nathanw static void 183 1.1.2.2 nathanw /*ARGSUSED*/ 184 1.1.2.2 nathanw _citrus_EUCTW_stdencoding_uninit(_EUCTWEncodingInfo *ei) 185 1.1.2.2 nathanw { 186 1.1.2.2 nathanw } 187 1.1.2.2 nathanw 188 1.1.2.2 nathanw static int 189 1.1.2.2 nathanw _citrus_EUCTW_mbrtowc_priv(_EUCTWEncodingInfo * __restrict ei, 190 1.1.2.2 nathanw wchar_t * __restrict pwc, 191 1.1.2.2 nathanw const char ** __restrict s, 192 1.1.2.2 nathanw size_t n, _EUCTWState * __restrict psenc, 193 1.1.2.2 nathanw size_t * __restrict nresult) 194 1.1.2.2 nathanw { 195 1.1.2.2 nathanw wchar_t wchar; 196 1.1.2.2 nathanw int c, cs; 197 1.1.2.2 nathanw int chlenbak; 198 1.1.2.2 nathanw const char *s0; 199 1.1.2.2 nathanw 200 1.1.2.2 nathanw _DIAGASSERT(nresult != 0); 201 1.1.2.2 nathanw _DIAGASSERT(ei != NULL); 202 1.1.2.2 nathanw _DIAGASSERT(psenc != NULL); 203 1.1.2.2 nathanw _DIAGASSERT(s != NULL); 204 1.1.2.2 nathanw 205 1.1.2.2 nathanw s0 = *s; 206 1.1.2.2 nathanw 207 1.1.2.2 nathanw if (s0 == NULL) { 208 1.1.2.2 nathanw _citrus_EUCTW_init_state(ei, psenc); 209 1.1.2.2 nathanw *nresult = 0; /* state independent */ 210 1.1.2.2 nathanw return (0); 211 1.1.2.2 nathanw } 212 1.1.2.2 nathanw 213 1.1.2.2 nathanw /* make sure we have the first byte in the buffer */ 214 1.1.2.2 nathanw switch (psenc->chlen) { 215 1.1.2.2 nathanw case 0: 216 1.1.2.2 nathanw if (n < 1) 217 1.1.2.2 nathanw goto restart; 218 1.1.2.2 nathanw psenc->ch[0] = *s0++; 219 1.1.2.2 nathanw psenc->chlen = 1; 220 1.1.2.2 nathanw n--; 221 1.1.2.2 nathanw break; 222 1.1.2.2 nathanw case 1: 223 1.1.2.2 nathanw case 2: 224 1.1.2.2 nathanw break; 225 1.1.2.2 nathanw default: 226 1.1.2.2 nathanw /* illgeal state */ 227 1.1.2.2 nathanw goto ilseq; 228 1.1.2.2 nathanw } 229 1.1.2.2 nathanw 230 1.1.2.2 nathanw c = _citrus_EUCTW_count(cs = _citrus_EUCTW_cs(psenc->ch[0] & 0xff)); 231 1.1.2.2 nathanw if (c == 0) 232 1.1.2.2 nathanw goto ilseq; 233 1.1.2.2 nathanw while (psenc->chlen < c) { 234 1.1.2.2 nathanw if (n < 1) 235 1.1.2.2 nathanw goto ilseq; 236 1.1.2.2 nathanw psenc->ch[psenc->chlen] = *s0++; 237 1.1.2.2 nathanw psenc->chlen++; 238 1.1.2.2 nathanw n--; 239 1.1.2.2 nathanw } 240 1.1.2.2 nathanw 241 1.1.2.2 nathanw wchar = 0; 242 1.1.2.2 nathanw switch (cs) { 243 1.1.2.2 nathanw case 0: 244 1.1.2.2 nathanw if (psenc->ch[0] & 0x80) 245 1.1.2.2 nathanw goto ilseq; 246 1.1.2.2 nathanw wchar = psenc->ch[0] & 0xff; 247 1.1.2.2 nathanw break; 248 1.1.2.2 nathanw case 1: 249 1.1.2.2 nathanw if (!(psenc->ch[0] & 0x80) || !(psenc->ch[1] & 0x80)) 250 1.1.2.2 nathanw goto ilseq; 251 1.1.2.2 nathanw wchar = ((psenc->ch[0] & 0xff) << 8) | (psenc->ch[1] & 0xff); 252 1.1.2.2 nathanw wchar |= 'G' << 24; 253 1.1.2.2 nathanw break; 254 1.1.2.2 nathanw case 2: 255 1.1.2.2 nathanw if ((u_char)psenc->ch[1] < 0xa1 || 0xa7 < (u_char)psenc->ch[1]) 256 1.1.2.2 nathanw goto ilseq; 257 1.1.2.2 nathanw if (!(psenc->ch[2] & 0x80) || !(psenc->ch[3] & 0x80)) 258 1.1.2.2 nathanw goto ilseq; 259 1.1.2.2 nathanw wchar = ((psenc->ch[2] & 0xff) << 8) | (psenc->ch[3] & 0xff); 260 1.1.2.2 nathanw wchar |= ('G' + psenc->ch[1] - 0xa1) << 24; 261 1.1.2.2 nathanw break; 262 1.1.2.2 nathanw default: 263 1.1.2.2 nathanw goto ilseq; 264 1.1.2.2 nathanw } 265 1.1.2.2 nathanw 266 1.1.2.2 nathanw *s = s0; 267 1.1.2.2 nathanw psenc->chlen = 0; 268 1.1.2.2 nathanw 269 1.1.2.2 nathanw if (pwc) 270 1.1.2.2 nathanw *pwc = wchar; 271 1.1.2.2 nathanw 272 1.1.2.2 nathanw if (!wchar) 273 1.1.2.2 nathanw *nresult = 0; 274 1.1.2.2 nathanw else 275 1.1.2.2 nathanw *nresult = c - chlenbak; 276 1.1.2.2 nathanw 277 1.1.2.2 nathanw return (0); 278 1.1.2.2 nathanw 279 1.1.2.2 nathanw ilseq: 280 1.1.2.2 nathanw psenc->chlen = 0; 281 1.1.2.2 nathanw *nresult = (size_t)-1; 282 1.1.2.2 nathanw return (EILSEQ); 283 1.1.2.2 nathanw 284 1.1.2.2 nathanw restart: 285 1.1.2.2 nathanw *s = s0; 286 1.1.2.2 nathanw *nresult = (size_t)-1; 287 1.1.2.2 nathanw return (0); 288 1.1.2.2 nathanw } 289 1.1.2.2 nathanw 290 1.1.2.2 nathanw static int 291 1.1.2.2 nathanw _citrus_EUCTW_wcrtomb_priv(_EUCTWEncodingInfo * __restrict ei, 292 1.1.2.2 nathanw char * __restrict s, size_t n, wchar_t wc, 293 1.1.2.2 nathanw _EUCTWState * __restrict psenc, 294 1.1.2.2 nathanw size_t * __restrict nresult) 295 1.1.2.2 nathanw { 296 1.1.2.2 nathanw wchar_t cs = wc & 0x7f000080; 297 1.1.2.2 nathanw wchar_t v; 298 1.1.2.2 nathanw int i, len, clen; 299 1.1.2.2 nathanw 300 1.1.2.2 nathanw _DIAGASSERT(ei != NULL); 301 1.1.2.2 nathanw _DIAGASSERT(nresult != 0); 302 1.1.2.2 nathanw _DIAGASSERT(s != NULL); 303 1.1.2.2 nathanw 304 1.1.2.2 nathanw clen = 1; 305 1.1.2.2 nathanw if (wc & 0x00007f00) 306 1.1.2.2 nathanw clen = 2; 307 1.1.2.2 nathanw if ((wc & 0x007f0000) && !(wc & 0x00800000)) 308 1.1.2.2 nathanw clen = 3; 309 1.1.2.2 nathanw 310 1.1.2.2 nathanw if (clen == 1 && cs == 0x00000000) { 311 1.1.2.2 nathanw /* ASCII */ 312 1.1.2.2 nathanw len = 1; 313 1.1.2.2 nathanw if (n < len) 314 1.1.2.2 nathanw goto ilseq; 315 1.1.2.2 nathanw v = wc & 0x0000007f; 316 1.1.2.2 nathanw } else if (clen == 2 && cs == ('G' << 24)) { 317 1.1.2.2 nathanw /* CNS-11643-1 */ 318 1.1.2.2 nathanw len = 2; 319 1.1.2.2 nathanw if (n < len) 320 1.1.2.2 nathanw goto ilseq; 321 1.1.2.2 nathanw v = wc & 0x00007f7f; 322 1.1.2.2 nathanw v |= 0x00008080; 323 1.1.2.2 nathanw } else if (clen == 2 && 'H' <= (cs >> 24) && (cs >> 24) <= 'M') { 324 1.1.2.2 nathanw /* CNS-11643-[2-7] */ 325 1.1.2.2 nathanw len = 4; 326 1.1.2.2 nathanw if (n < len) 327 1.1.2.2 nathanw goto ilseq; 328 1.1.2.2 nathanw *s++ = _SS2; 329 1.1.2.2 nathanw *s++ = (cs >> 24) - 'H' + 0xa2; 330 1.1.2.2 nathanw v = wc & 0x00007f7f; 331 1.1.2.2 nathanw v |= 0x00008080; 332 1.1.2.2 nathanw } else 333 1.1.2.2 nathanw goto ilseq; 334 1.1.2.2 nathanw 335 1.1.2.2 nathanw i = clen; 336 1.1.2.2 nathanw while (i-- > 0) 337 1.1.2.2 nathanw *s++ = (v >> (i << 3)) & 0xff; 338 1.1.2.2 nathanw 339 1.1.2.2 nathanw *nresult = len; 340 1.1.2.2 nathanw return (0); 341 1.1.2.2 nathanw 342 1.1.2.2 nathanw ilseq: 343 1.1.2.2 nathanw *nresult = (size_t)-1; 344 1.1.2.2 nathanw return (EILSEQ); 345 1.1.2.2 nathanw } 346 1.1.2.2 nathanw 347 1.1.2.2 nathanw /* ---------------------------------------------------------------------- 348 1.1.2.2 nathanw * public interface for ctype 349 1.1.2.2 nathanw */ 350 1.1.2.2 nathanw 351 1.1.2.2 nathanw _CITRUS_CTYPE_DECLS(EUCTW); 352 1.1.2.2 nathanw _CITRUS_CTYPE_DEF_OPS(EUCTW); 353 1.1.2.2 nathanw 354 1.1.2.2 nathanw #include "citrus_ctype_template.h" 355
Indexes created Tue Oct 21 16:10:11 GMT 2025