[444] | 1 | /* Copyright (c) 2002 Red Hat Incorporated. |
---|
| 2 | All rights reserved. |
---|
| 3 | |
---|
| 4 | Redistribution and use in source and binary forms, with or without |
---|
| 5 | modification, are permitted provided that the following conditions are met: |
---|
| 6 | |
---|
| 7 | Redistributions of source code must retain the above copyright |
---|
| 8 | notice, this list of conditions and the following disclaimer. |
---|
| 9 | |
---|
| 10 | Redistributions in binary form must reproduce the above copyright |
---|
| 11 | notice, this list of conditions and the following disclaimer in the |
---|
| 12 | documentation and/or other materials provided with the distribution. |
---|
| 13 | |
---|
| 14 | The name of Red Hat Incorporated may not be used to endorse |
---|
| 15 | or promote products derived from this software without specific |
---|
| 16 | prior written permission. |
---|
| 17 | |
---|
| 18 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
---|
| 19 | AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
---|
| 20 | IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
---|
| 21 | ARE DISCLAIMED. IN NO EVENT SHALL RED HAT INCORPORATED BE LIABLE FOR ANY |
---|
| 22 | DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
---|
| 23 | (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
---|
| 24 | LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
---|
| 25 | ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
---|
| 26 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
---|
| 27 | SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
---|
| 28 | */ |
---|
| 29 | |
---|
| 30 | /* |
---|
| 31 | FUNCTION |
---|
| 32 | <<iswalpha>>, <<iswalpha_l>>---alphabetic wide character test |
---|
| 33 | |
---|
| 34 | INDEX |
---|
| 35 | iswalpha |
---|
| 36 | |
---|
| 37 | INDEX |
---|
| 38 | iswalpha_l |
---|
| 39 | |
---|
| 40 | SYNOPSIS |
---|
| 41 | #include <wctype.h> |
---|
| 42 | int iswalpha(wint_t <[c]>); |
---|
| 43 | |
---|
| 44 | #include <wctype.h> |
---|
| 45 | int iswalpha_l(wint_t <[c]>, locale_t <[locale]>); |
---|
| 46 | |
---|
| 47 | DESCRIPTION |
---|
| 48 | <<iswalpha>> is a function which classifies wide-character values that |
---|
| 49 | are alphabetic. |
---|
| 50 | |
---|
| 51 | <<iswalpha_l>> is like <<iswalpha>> but performs the check based on the |
---|
| 52 | locale specified by the locale object locale. If <[locale]> is |
---|
| 53 | LC_GLOBAL_LOCALE or not a valid locale object, the behaviour is undefined. |
---|
| 54 | |
---|
| 55 | RETURNS |
---|
| 56 | <<iswalpha>>, <<iswalpha_l>> return non-zero if <[c]> is an alphabetic |
---|
| 57 | wide character. |
---|
| 58 | |
---|
| 59 | PORTABILITY |
---|
| 60 | <<iswalpha>> is C99. |
---|
| 61 | <<iswalpha_l>> is POSIX-1.2008. |
---|
| 62 | |
---|
| 63 | No supporting OS subroutines are required. |
---|
| 64 | */ |
---|
| 65 | #include <_ansi.h> |
---|
| 66 | #include <newlib.h> |
---|
| 67 | #include <wctype.h> |
---|
| 68 | #include <string.h> |
---|
| 69 | #include <ctype.h> |
---|
| 70 | #include "local.h" |
---|
| 71 | |
---|
| 72 | #ifdef _MB_CAPABLE |
---|
| 73 | #include "utf8alpha.h" |
---|
| 74 | #endif /* _MB_CAPABLE */ |
---|
| 75 | |
---|
| 76 | int |
---|
| 77 | iswalpha (wint_t c) |
---|
| 78 | { |
---|
| 79 | #ifdef _MB_CAPABLE |
---|
| 80 | unsigned const char *table; |
---|
| 81 | unsigned char *ptr; |
---|
| 82 | unsigned char ctmp; |
---|
| 83 | int size; |
---|
| 84 | wint_t x; |
---|
| 85 | |
---|
| 86 | c = _jp2uc (c); |
---|
| 87 | |
---|
| 88 | /* Based on and tested against Unicode 5.2 |
---|
| 89 | See utf8alpha.h for a description how to fetch the data. */ |
---|
| 90 | x = (c >> 8); |
---|
| 91 | /* for some large sections, all characters are alphabetic so handle them here */ |
---|
| 92 | if ((x >= 0x34 && x <= 0x4c) || |
---|
| 93 | (x >= 0x4e && x <= 0x9e) || |
---|
| 94 | (x >= 0xac && x <= 0xd6) || |
---|
| 95 | (x >= 0x120 && x <= 0x122) || |
---|
| 96 | (x >= 0x130 && x <= 0x133) || |
---|
| 97 | (x >= 0x200 && x <= 0x2a5) || |
---|
| 98 | (x >= 0x2a7 && x <= 0x2b6)) |
---|
| 99 | return 1; |
---|
| 100 | |
---|
| 101 | switch (x) |
---|
| 102 | { |
---|
| 103 | case 0x00: |
---|
| 104 | table = u0; |
---|
| 105 | size = sizeof(u0); |
---|
| 106 | break; |
---|
| 107 | case 0x01: |
---|
| 108 | case 0x11: |
---|
| 109 | case 0x15: |
---|
| 110 | case 0x1e: |
---|
| 111 | case 0xa0: |
---|
| 112 | case 0xa1: |
---|
| 113 | case 0xa2: |
---|
| 114 | case 0xa3: |
---|
| 115 | case 0xa5: |
---|
| 116 | case 0xf9: |
---|
| 117 | case 0xfc: |
---|
| 118 | case 0x2f8: |
---|
| 119 | case 0x2f9: |
---|
| 120 | return 1; |
---|
| 121 | case 0x02: |
---|
| 122 | table = u2; |
---|
| 123 | size = sizeof(u2); |
---|
| 124 | break; |
---|
| 125 | case 0x03: |
---|
| 126 | table = u3; |
---|
| 127 | size = sizeof(u3); |
---|
| 128 | break; |
---|
| 129 | case 0x04: |
---|
| 130 | table = u4; |
---|
| 131 | size = sizeof(u4); |
---|
| 132 | break; |
---|
| 133 | case 0x05: |
---|
| 134 | table = u5; |
---|
| 135 | size = sizeof(u5); |
---|
| 136 | break; |
---|
| 137 | case 0x06: |
---|
| 138 | table = u6; |
---|
| 139 | size = sizeof(u6); |
---|
| 140 | break; |
---|
| 141 | case 0x07: |
---|
| 142 | table = u7; |
---|
| 143 | size = sizeof(u7); |
---|
| 144 | break; |
---|
| 145 | case 0x08: |
---|
| 146 | table = u8; |
---|
| 147 | size = sizeof(u8); |
---|
| 148 | break; |
---|
| 149 | case 0x09: |
---|
| 150 | table = u9; |
---|
| 151 | size = sizeof(u9); |
---|
| 152 | break; |
---|
| 153 | case 0x0a: |
---|
| 154 | table = ua; |
---|
| 155 | size = sizeof(ua); |
---|
| 156 | break; |
---|
| 157 | case 0x0b: |
---|
| 158 | table = ub; |
---|
| 159 | size = sizeof(ub); |
---|
| 160 | break; |
---|
| 161 | case 0x0c: |
---|
| 162 | table = uc; |
---|
| 163 | size = sizeof(uc); |
---|
| 164 | break; |
---|
| 165 | case 0x0d: |
---|
| 166 | table = ud; |
---|
| 167 | size = sizeof(ud); |
---|
| 168 | break; |
---|
| 169 | case 0x0e: |
---|
| 170 | table = ue; |
---|
| 171 | size = sizeof(ue); |
---|
| 172 | break; |
---|
| 173 | case 0x0f: |
---|
| 174 | table = uf; |
---|
| 175 | size = sizeof(uf); |
---|
| 176 | break; |
---|
| 177 | case 0x10: |
---|
| 178 | table = u10; |
---|
| 179 | size = sizeof(u10); |
---|
| 180 | break; |
---|
| 181 | case 0x12: |
---|
| 182 | table = u12; |
---|
| 183 | size = sizeof(u12); |
---|
| 184 | break; |
---|
| 185 | case 0x13: |
---|
| 186 | table = u13; |
---|
| 187 | size = sizeof(u13); |
---|
| 188 | break; |
---|
| 189 | case 0x14: |
---|
| 190 | table = u14; |
---|
| 191 | size = sizeof(u14); |
---|
| 192 | break; |
---|
| 193 | case 0x16: |
---|
| 194 | table = u16; |
---|
| 195 | size = sizeof(u16); |
---|
| 196 | break; |
---|
| 197 | case 0x17: |
---|
| 198 | table = u17; |
---|
| 199 | size = sizeof(u17); |
---|
| 200 | break; |
---|
| 201 | case 0x18: |
---|
| 202 | table = u18; |
---|
| 203 | size = sizeof(u18); |
---|
| 204 | break; |
---|
| 205 | case 0x19: |
---|
| 206 | table = u19; |
---|
| 207 | size = sizeof(u19); |
---|
| 208 | break; |
---|
| 209 | case 0x1a: |
---|
| 210 | table = u1a; |
---|
| 211 | size = sizeof(u1a); |
---|
| 212 | break; |
---|
| 213 | case 0x1b: |
---|
| 214 | table = u1b; |
---|
| 215 | size = sizeof(u1b); |
---|
| 216 | break; |
---|
| 217 | case 0x1c: |
---|
| 218 | table = u1c; |
---|
| 219 | size = sizeof(u1c); |
---|
| 220 | break; |
---|
| 221 | case 0x1d: |
---|
| 222 | table = u1d; |
---|
| 223 | size = sizeof(u1d); |
---|
| 224 | break; |
---|
| 225 | case 0x1f: |
---|
| 226 | table = u1f; |
---|
| 227 | size = sizeof(u1f); |
---|
| 228 | break; |
---|
| 229 | case 0x20: |
---|
| 230 | table = u20; |
---|
| 231 | size = sizeof(u20); |
---|
| 232 | break; |
---|
| 233 | case 0x21: |
---|
| 234 | table = u21; |
---|
| 235 | size = sizeof(u21); |
---|
| 236 | break; |
---|
| 237 | case 0x24: |
---|
| 238 | table = u24; |
---|
| 239 | size = sizeof(u24); |
---|
| 240 | break; |
---|
| 241 | case 0x2c: |
---|
| 242 | table = u2c; |
---|
| 243 | size = sizeof(u2c); |
---|
| 244 | break; |
---|
| 245 | case 0x2d: |
---|
| 246 | table = u2d; |
---|
| 247 | size = sizeof(u2d); |
---|
| 248 | break; |
---|
| 249 | case 0x2e: |
---|
| 250 | table = u2e; |
---|
| 251 | size = sizeof(u2e); |
---|
| 252 | break; |
---|
| 253 | case 0x30: |
---|
| 254 | table = u30; |
---|
| 255 | size = sizeof(u30); |
---|
| 256 | break; |
---|
| 257 | case 0x31: |
---|
| 258 | table = u31; |
---|
| 259 | size = sizeof(u31); |
---|
| 260 | break; |
---|
| 261 | case 0x4d: |
---|
| 262 | table = u4d; |
---|
| 263 | size = sizeof(u4d); |
---|
| 264 | break; |
---|
| 265 | case 0x9f: |
---|
| 266 | table = u9f; |
---|
| 267 | size = sizeof(u9f); |
---|
| 268 | break; |
---|
| 269 | case 0xa4: |
---|
| 270 | table = ua4; |
---|
| 271 | size = sizeof(ua4); |
---|
| 272 | break; |
---|
| 273 | case 0xa6: |
---|
| 274 | table = ua6; |
---|
| 275 | size = sizeof(ua6); |
---|
| 276 | break; |
---|
| 277 | case 0xa7: |
---|
| 278 | table = ua7; |
---|
| 279 | size = sizeof(ua7); |
---|
| 280 | break; |
---|
| 281 | case 0xa8: |
---|
| 282 | table = ua8; |
---|
| 283 | size = sizeof(ua8); |
---|
| 284 | break; |
---|
| 285 | case 0xa9: |
---|
| 286 | table = ua9; |
---|
| 287 | size = sizeof(ua9); |
---|
| 288 | break; |
---|
| 289 | case 0xaa: |
---|
| 290 | table = uaa; |
---|
| 291 | size = sizeof(uaa); |
---|
| 292 | break; |
---|
| 293 | case 0xab: |
---|
| 294 | table = uab; |
---|
| 295 | size = sizeof(uab); |
---|
| 296 | break; |
---|
| 297 | case 0xd7: |
---|
| 298 | table = ud7; |
---|
| 299 | size = sizeof(ud7); |
---|
| 300 | break; |
---|
| 301 | case 0xfa: |
---|
| 302 | table = ufa; |
---|
| 303 | size = sizeof(ufa); |
---|
| 304 | break; |
---|
| 305 | case 0xfb: |
---|
| 306 | table = ufb; |
---|
| 307 | size = sizeof(ufb); |
---|
| 308 | break; |
---|
| 309 | case 0xfd: |
---|
| 310 | table = ufd; |
---|
| 311 | size = sizeof(ufd); |
---|
| 312 | break; |
---|
| 313 | case 0xfe: |
---|
| 314 | table = ufe; |
---|
| 315 | size = sizeof(ufe); |
---|
| 316 | break; |
---|
| 317 | case 0xff: |
---|
| 318 | table = uff; |
---|
| 319 | size = sizeof(uff); |
---|
| 320 | break; |
---|
| 321 | case 0x100: |
---|
| 322 | table = u100; |
---|
| 323 | size = sizeof(u100); |
---|
| 324 | break; |
---|
| 325 | case 0x101: |
---|
| 326 | table = u101; |
---|
| 327 | size = sizeof(u101); |
---|
| 328 | break; |
---|
| 329 | case 0x102: |
---|
| 330 | table = u102; |
---|
| 331 | size = sizeof(u102); |
---|
| 332 | break; |
---|
| 333 | case 0x103: |
---|
| 334 | table = u103; |
---|
| 335 | size = sizeof(u103); |
---|
| 336 | break; |
---|
| 337 | case 0x104: |
---|
| 338 | table = u104; |
---|
| 339 | size = sizeof(u104); |
---|
| 340 | break; |
---|
| 341 | case 0x108: |
---|
| 342 | table = u108; |
---|
| 343 | size = sizeof(u108); |
---|
| 344 | break; |
---|
| 345 | case 0x109: |
---|
| 346 | table = u109; |
---|
| 347 | size = sizeof(u109); |
---|
| 348 | break; |
---|
| 349 | case 0x10a: |
---|
| 350 | table = u10a; |
---|
| 351 | size = sizeof(u10a); |
---|
| 352 | break; |
---|
| 353 | case 0x10b: |
---|
| 354 | table = u10b; |
---|
| 355 | size = sizeof(u10b); |
---|
| 356 | break; |
---|
| 357 | case 0x10c: |
---|
| 358 | table = u10c; |
---|
| 359 | size = sizeof(u10c); |
---|
| 360 | break; |
---|
| 361 | case 0x110: |
---|
| 362 | table = u110; |
---|
| 363 | size = sizeof(u110); |
---|
| 364 | break; |
---|
| 365 | case 0x123: |
---|
| 366 | table = u123; |
---|
| 367 | size = sizeof(u123); |
---|
| 368 | break; |
---|
| 369 | case 0x124: |
---|
| 370 | table = u124; |
---|
| 371 | size = sizeof(u124); |
---|
| 372 | break; |
---|
| 373 | case 0x134: |
---|
| 374 | table = u134; |
---|
| 375 | size = sizeof(u134); |
---|
| 376 | break; |
---|
| 377 | case 0x1d4: |
---|
| 378 | table = u1d4; |
---|
| 379 | size = sizeof(u1d4); |
---|
| 380 | break; |
---|
| 381 | case 0x1d5: |
---|
| 382 | table = u1d5; |
---|
| 383 | size = sizeof(u1d5); |
---|
| 384 | break; |
---|
| 385 | case 0x1d6: |
---|
| 386 | table = u1d6; |
---|
| 387 | size = sizeof(u1d6); |
---|
| 388 | break; |
---|
| 389 | case 0x1d7: |
---|
| 390 | table = u1d7; |
---|
| 391 | size = sizeof(u1d7); |
---|
| 392 | break; |
---|
| 393 | case 0x1f1: |
---|
| 394 | table = u1f1; |
---|
| 395 | size = sizeof(u1f1); |
---|
| 396 | break; |
---|
| 397 | case 0x2a6: |
---|
| 398 | table = u2a6; |
---|
| 399 | size = sizeof(u2a6); |
---|
| 400 | break; |
---|
| 401 | case 0x2b7: |
---|
| 402 | table = u2b7; |
---|
| 403 | size = sizeof(u2b7); |
---|
| 404 | break; |
---|
| 405 | case 0x2fa: |
---|
| 406 | table = u2fa; |
---|
| 407 | size = sizeof(u2fa); |
---|
| 408 | break; |
---|
| 409 | default: |
---|
| 410 | return 0; |
---|
| 411 | } |
---|
| 412 | /* we have narrowed down to a section of 256 characters to check */ |
---|
| 413 | /* now check if c matches the alphabetic wide-chars within that section */ |
---|
| 414 | ptr = (unsigned char *)table; |
---|
| 415 | ctmp = (unsigned char)c; |
---|
| 416 | while (ptr < table + size) |
---|
| 417 | { |
---|
| 418 | if (ctmp == *ptr) |
---|
| 419 | return 1; |
---|
| 420 | if (ctmp < *ptr) |
---|
| 421 | return 0; |
---|
| 422 | /* otherwise c > *ptr */ |
---|
| 423 | /* look for 0x0 as next element which indicates a range */ |
---|
| 424 | ++ptr; |
---|
| 425 | if (ptr < table + size - 1 && *ptr == 0x0) |
---|
| 426 | { |
---|
| 427 | /* we have a range..see if c falls within range */ |
---|
| 428 | ++ptr; |
---|
| 429 | if (ctmp <= *ptr) |
---|
| 430 | return 1; |
---|
| 431 | ++ptr; |
---|
| 432 | } |
---|
| 433 | } |
---|
| 434 | /* not in table */ |
---|
| 435 | return 0; |
---|
| 436 | #else |
---|
| 437 | return (c < (wint_t)0x100 ? isalpha (c) : 0); |
---|
| 438 | #endif /* _MB_CAPABLE */ |
---|
| 439 | } |
---|