| 1 | /* Character handling in C locale. |
| 2 | |
| 3 | Copyright 2000-2003, 2006 Free Software Foundation, Inc. |
| 4 | |
| 5 | This program is free software; you can redistribute it and/or modify |
| 6 | it under the terms of the GNU Lesser General Public License as published by |
| 7 | the Free Software Foundation; either version 2 of the License, or |
| 8 | (at your option) any later version. |
| 9 | |
| 10 | This program is distributed in the hope that it will be useful, |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | GNU Lesser General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU Lesser General Public License |
| 16 | along with this program; if not, write to the Free Software Foundation, |
| 17 | Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ |
| 18 | |
| 19 | #include <config.h> |
| 20 | |
| 21 | /* Specification. */ |
| 22 | #define NO_C_CTYPE_MACROS |
| 23 | #include "c-ctype.h" |
| 24 | |
| 25 | /* The function isascii is not locale dependent. Its use in EBCDIC is |
| 26 | questionable. */ |
| 27 | bool |
| 28 | c_isascii (int c) |
| 29 | { |
| 30 | return (c >= 0x00 && c <= 0x7f); |
| 31 | } |
| 32 | |
| 33 | bool |
| 34 | c_isalnum (int c) |
| 35 | { |
| 36 | #if C_CTYPE_CONSECUTIVE_DIGITS \ |
| 37 | && C_CTYPE_CONSECUTIVE_UPPERCASE && C_CTYPE_CONSECUTIVE_LOWERCASE |
| 38 | #if C_CTYPE_ASCII |
| 39 | return ((c >= '0' && c <= '9') |
| 40 | || ((c & ~0x20) >= 'A' && (c & ~0x20) <= 'Z')); |
| 41 | #else |
| 42 | return ((c >= '0' && c <= '9') |
| 43 | || (c >= 'A' && c <= 'Z') |
| 44 | || (c >= 'a' && c <= 'z')); |
| 45 | #endif |
| 46 | #else |
| 47 | switch (c) |
| 48 | { |
| 49 | case '0': case '1': case '2': case '3': case '4': case '5': |
| 50 | case '6': case '7': case '8': case '9': |
| 51 | case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': |
| 52 | case 'G': case 'H': case 'I': case 'J': case 'K': case 'L': |
| 53 | case 'M': case 'N': case 'O': case 'P': case 'Q': case 'R': |
| 54 | case 'S': case 'T': case 'U': case 'V': case 'W': case 'X': |
| 55 | case 'Y': case 'Z': |
| 56 | case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': |
| 57 | case 'g': case 'h': case 'i': case 'j': case 'k': case 'l': |
| 58 | case 'm': case 'n': case 'o': case 'p': case 'q': case 'r': |
| 59 | case 's': case 't': case 'u': case 'v': case 'w': case 'x': |
| 60 | case 'y': case 'z': |
| 61 | return 1; |
| 62 | default: |
| 63 | return 0; |
| 64 | } |
| 65 | #endif |
| 66 | } |
| 67 | |
| 68 | bool |
| 69 | c_isalpha (int c) |
| 70 | { |
| 71 | #if C_CTYPE_CONSECUTIVE_UPPERCASE && C_CTYPE_CONSECUTIVE_LOWERCASE |
| 72 | #if C_CTYPE_ASCII |
| 73 | return ((c & ~0x20) >= 'A' && (c & ~0x20) <= 'Z'); |
| 74 | #else |
| 75 | return ((c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z')); |
| 76 | #endif |
| 77 | #else |
| 78 | switch (c) |
| 79 | { |
| 80 | case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': |
| 81 | case 'G': case 'H': case 'I': case 'J': case 'K': case 'L': |
| 82 | case 'M': case 'N': case 'O': case 'P': case 'Q': case 'R': |
| 83 | case 'S': case 'T': case 'U': case 'V': case 'W': case 'X': |
| 84 | case 'Y': case 'Z': |
| 85 | case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': |
| 86 | case 'g': case 'h': case 'i': case 'j': case 'k': case 'l': |
| 87 | case 'm': case 'n': case 'o': case 'p': case 'q': case 'r': |
| 88 | case 's': case 't': case 'u': case 'v': case 'w': case 'x': |
| 89 | case 'y': case 'z': |
| 90 | return 1; |
| 91 | default: |
| 92 | return 0; |
| 93 | } |
| 94 | #endif |
| 95 | } |
| 96 | |
| 97 | bool |
| 98 | c_isblank (int c) |
| 99 | { |
| 100 | return (c == ' ' || c == '\t'); |
| 101 | } |
| 102 | |
| 103 | bool |
| 104 | c_iscntrl (int c) |
| 105 | { |
| 106 | #if C_CTYPE_ASCII |
| 107 | return ((c & ~0x1f) == 0 || c == 0x7f); |
| 108 | #else |
| 109 | switch (c) |
| 110 | { |
| 111 | case ' ': case '!': case '"': case '#': case '$': case '%': |
| 112 | case '&': case '\'': case '(': case ')': case '*': case '+': |
| 113 | case ',': case '-': case '.': case '/': |
| 114 | case '0': case '1': case '2': case '3': case '4': case '5': |
| 115 | case '6': case '7': case '8': case '9': |
| 116 | case ':': case ';': case '<': case '=': case '>': case '?': |
| 117 | case '@': |
| 118 | case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': |
| 119 | case 'G': case 'H': case 'I': case 'J': case 'K': case 'L': |
| 120 | case 'M': case 'N': case 'O': case 'P': case 'Q': case 'R': |
| 121 | case 'S': case 'T': case 'U': case 'V': case 'W': case 'X': |
| 122 | case 'Y': case 'Z': |
| 123 | case '[': case '\\': case ']': case '^': case '_': case '`': |
| 124 | case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': |
| 125 | case 'g': case 'h': case 'i': case 'j': case 'k': case 'l': |
| 126 | case 'm': case 'n': case 'o': case 'p': case 'q': case 'r': |
| 127 | case 's': case 't': case 'u': case 'v': case 'w': case 'x': |
| 128 | case 'y': case 'z': |
| 129 | case '{': case '|': case '}': case '~': |
| 130 | return 0; |
| 131 | default: |
| 132 | return 1; |
| 133 | } |
| 134 | #endif |
| 135 | } |
| 136 | |
| 137 | bool |
| 138 | c_isdigit (int c) |
| 139 | { |
| 140 | #if C_CTYPE_CONSECUTIVE_DIGITS |
| 141 | return (c >= '0' && c <= '9'); |
| 142 | #else |
| 143 | switch (c) |
| 144 | { |
| 145 | case '0': case '1': case '2': case '3': case '4': case '5': |
| 146 | case '6': case '7': case '8': case '9': |
| 147 | return 1; |
| 148 | default: |
| 149 | return 0; |
| 150 | } |
| 151 | #endif |
| 152 | } |
| 153 | |
| 154 | bool |
| 155 | c_islower (int c) |
| 156 | { |
| 157 | #if C_CTYPE_CONSECUTIVE_LOWERCASE |
| 158 | return (c >= 'a' && c <= 'z'); |
| 159 | #else |
| 160 | switch (c) |
| 161 | { |
| 162 | case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': |
| 163 | case 'g': case 'h': case 'i': case 'j': case 'k': case 'l': |
| 164 | case 'm': case 'n': case 'o': case 'p': case 'q': case 'r': |
| 165 | case 's': case 't': case 'u': case 'v': case 'w': case 'x': |
| 166 | case 'y': case 'z': |
| 167 | return 1; |
| 168 | default: |
| 169 | return 0; |
| 170 | } |
| 171 | #endif |
| 172 | } |
| 173 | |
| 174 | bool |
| 175 | c_isgraph (int c) |
| 176 | { |
| 177 | #if C_CTYPE_ASCII |
| 178 | return (c >= '!' && c <= '~'); |
| 179 | #else |
| 180 | switch (c) |
| 181 | { |
| 182 | case '!': case '"': case '#': case '$': case '%': case '&': |
| 183 | case '\'': case '(': case ')': case '*': case '+': case ',': |
| 184 | case '-': case '.': case '/': |
| 185 | case '0': case '1': case '2': case '3': case '4': case '5': |
| 186 | case '6': case '7': case '8': case '9': |
| 187 | case ':': case ';': case '<': case '=': case '>': case '?': |
| 188 | case '@': |
| 189 | case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': |
| 190 | case 'G': case 'H': case 'I': case 'J': case 'K': case 'L': |
| 191 | case 'M': case 'N': case 'O': case 'P': case 'Q': case 'R': |
| 192 | case 'S': case 'T': case 'U': case 'V': case 'W': case 'X': |
| 193 | case 'Y': case 'Z': |
| 194 | case '[': case '\\': case ']': case '^': case '_': case '`': |
| 195 | case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': |
| 196 | case 'g': case 'h': case 'i': case 'j': case 'k': case 'l': |
| 197 | case 'm': case 'n': case 'o': case 'p': case 'q': case 'r': |
| 198 | case 's': case 't': case 'u': case 'v': case 'w': case 'x': |
| 199 | case 'y': case 'z': |
| 200 | case '{': case '|': case '}': case '~': |
| 201 | return 1; |
| 202 | default: |
| 203 | return 0; |
| 204 | } |
| 205 | #endif |
| 206 | } |
| 207 | |
| 208 | bool |
| 209 | c_isprint (int c) |
| 210 | { |
| 211 | #if C_CTYPE_ASCII |
| 212 | return (c >= ' ' && c <= '~'); |
| 213 | #else |
| 214 | switch (c) |
| 215 | { |
| 216 | case ' ': case '!': case '"': case '#': case '$': case '%': |
| 217 | case '&': case '\'': case '(': case ')': case '*': case '+': |
| 218 | case ',': case '-': case '.': case '/': |
| 219 | case '0': case '1': case '2': case '3': case '4': case '5': |
| 220 | case '6': case '7': case '8': case '9': |
| 221 | case ':': case ';': case '<': case '=': case '>': case '?': |
| 222 | case '@': |
| 223 | case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': |
| 224 | case 'G': case 'H': case 'I': case 'J': case 'K': case 'L': |
| 225 | case 'M': case 'N': case 'O': case 'P': case 'Q': case 'R': |
| 226 | case 'S': case 'T': case 'U': case 'V': case 'W': case 'X': |
| 227 | case 'Y': case 'Z': |
| 228 | case '[': case '\\': case ']': case '^': case '_': case '`': |
| 229 | case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': |
| 230 | case 'g': case 'h': case 'i': case 'j': case 'k': case 'l': |
| 231 | case 'm': case 'n': case 'o': case 'p': case 'q': case 'r': |
| 232 | case 's': case 't': case 'u': case 'v': case 'w': case 'x': |
| 233 | case 'y': case 'z': |
| 234 | case '{': case '|': case '}': case '~': |
| 235 | return 1; |
| 236 | default: |
| 237 | return 0; |
| 238 | } |
| 239 | #endif |
| 240 | } |
| 241 | |
| 242 | bool |
| 243 | c_ispunct (int c) |
| 244 | { |
| 245 | #if C_CTYPE_ASCII |
| 246 | return ((c >= '!' && c <= '~') |
| 247 | && !((c >= '0' && c <= '9') |
| 248 | || ((c & ~0x20) >= 'A' && (c & ~0x20) <= 'Z'))); |
| 249 | #else |
| 250 | switch (c) |
| 251 | { |
| 252 | case '!': case '"': case '#': case '$': case '%': case '&': |
| 253 | case '\'': case '(': case ')': case '*': case '+': case ',': |
| 254 | case '-': case '.': case '/': |
| 255 | case ':': case ';': case '<': case '=': case '>': case '?': |
| 256 | case '@': |
| 257 | case '[': case '\\': case ']': case '^': case '_': case '`': |
| 258 | case '{': case '|': case '}': case '~': |
| 259 | return 1; |
| 260 | default: |
| 261 | return 0; |
| 262 | } |
| 263 | #endif |
| 264 | } |
| 265 | |
| 266 | bool |
| 267 | c_isspace (int c) |
| 268 | { |
| 269 | return (c == ' ' || c == '\t' |
| 270 | || c == '\n' || c == '\v' || c == '\f' || c == '\r'); |
| 271 | } |
| 272 | |
| 273 | bool |
| 274 | c_isupper (int c) |
| 275 | { |
| 276 | #if C_CTYPE_CONSECUTIVE_UPPERCASE |
| 277 | return (c >= 'A' && c <= 'Z'); |
| 278 | #else |
| 279 | switch (c) |
| 280 | { |
| 281 | case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': |
| 282 | case 'G': case 'H': case 'I': case 'J': case 'K': case 'L': |
| 283 | case 'M': case 'N': case 'O': case 'P': case 'Q': case 'R': |
| 284 | case 'S': case 'T': case 'U': case 'V': case 'W': case 'X': |
| 285 | case 'Y': case 'Z': |
| 286 | return 1; |
| 287 | default: |
| 288 | return 0; |
| 289 | } |
| 290 | #endif |
| 291 | } |
| 292 | |
| 293 | bool |
| 294 | c_isxdigit (int c) |
| 295 | { |
| 296 | #if C_CTYPE_CONSECUTIVE_DIGITS \ |
| 297 | && C_CTYPE_CONSECUTIVE_UPPERCASE && C_CTYPE_CONSECUTIVE_LOWERCASE |
| 298 | #if C_CTYPE_ASCII |
| 299 | return ((c >= '0' && c <= '9') |
| 300 | || ((c & ~0x20) >= 'A' && (c & ~0x20) <= 'F')); |
| 301 | #else |
| 302 | return ((c >= '0' && c <= '9') |
| 303 | || (c >= 'A' && c <= 'F') |
| 304 | || (c >= 'a' && c <= 'f')); |
| 305 | #endif |
| 306 | #else |
| 307 | switch (c) |
| 308 | { |
| 309 | case '0': case '1': case '2': case '3': case '4': case '5': |
| 310 | case '6': case '7': case '8': case '9': |
| 311 | case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': |
| 312 | case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': |
| 313 | return 1; |
| 314 | default: |
| 315 | return 0; |
| 316 | } |
| 317 | #endif |
| 318 | } |
| 319 | |
| 320 | int |
| 321 | c_tolower (int c) |
| 322 | { |
| 323 | #if C_CTYPE_CONSECUTIVE_UPPERCASE && C_CTYPE_CONSECUTIVE_LOWERCASE |
| 324 | return (c >= 'A' && c <= 'Z' ? c - 'A' + 'a' : c); |
| 325 | #else |
| 326 | switch (c) |
| 327 | { |
| 328 | case 'A': return 'a'; |
| 329 | case 'B': return 'b'; |
| 330 | case 'C': return 'c'; |
| 331 | case 'D': return 'd'; |
| 332 | case 'E': return 'e'; |
| 333 | case 'F': return 'f'; |
| 334 | case 'G': return 'g'; |
| 335 | case 'H': return 'h'; |
| 336 | case 'I': return 'i'; |
| 337 | case 'J': return 'j'; |
| 338 | case 'K': return 'k'; |
| 339 | case 'L': return 'l'; |
| 340 | case 'M': return 'm'; |
| 341 | case 'N': return 'n'; |
| 342 | case 'O': return 'o'; |
| 343 | case 'P': return 'p'; |
| 344 | case 'Q': return 'q'; |
| 345 | case 'R': return 'r'; |
| 346 | case 'S': return 's'; |
| 347 | case 'T': return 't'; |
| 348 | case 'U': return 'u'; |
| 349 | case 'V': return 'v'; |
| 350 | case 'W': return 'w'; |
| 351 | case 'X': return 'x'; |
| 352 | case 'Y': return 'y'; |
| 353 | case 'Z': return 'z'; |
| 354 | default: return c; |
| 355 | } |
| 356 | #endif |
| 357 | } |
| 358 | |
| 359 | int |
| 360 | c_toupper (int c) |
| 361 | { |
| 362 | #if C_CTYPE_CONSECUTIVE_UPPERCASE && C_CTYPE_CONSECUTIVE_LOWERCASE |
| 363 | return (c >= 'a' && c <= 'z' ? c - 'a' + 'A' : c); |
| 364 | #else |
| 365 | switch (c) |
| 366 | { |
| 367 | case 'a': return 'A'; |
| 368 | case 'b': return 'B'; |
| 369 | case 'c': return 'C'; |
| 370 | case 'd': return 'D'; |
| 371 | case 'e': return 'E'; |
| 372 | case 'f': return 'F'; |
| 373 | case 'g': return 'G'; |
| 374 | case 'h': return 'H'; |
| 375 | case 'i': return 'I'; |
| 376 | case 'j': return 'J'; |
| 377 | case 'k': return 'K'; |
| 378 | case 'l': return 'L'; |
| 379 | case 'm': return 'M'; |
| 380 | case 'n': return 'N'; |
| 381 | case 'o': return 'O'; |
| 382 | case 'p': return 'P'; |
| 383 | case 'q': return 'Q'; |
| 384 | case 'r': return 'R'; |
| 385 | case 's': return 'S'; |
| 386 | case 't': return 'T'; |
| 387 | case 'u': return 'U'; |
| 388 | case 'v': return 'V'; |
| 389 | case 'w': return 'W'; |
| 390 | case 'x': return 'X'; |
| 391 | case 'y': return 'Y'; |
| 392 | case 'z': return 'Z'; |
| 393 | default: return c; |
| 394 | } |
| 395 | #endif |
| 396 | } |