Guido van Rossum | 603484d | 2000-03-10 22:52:46 +0000 | [diff] [blame] | 1 | /* |
| 2 | Unicode character type helpers. |
| 3 | |
Fredrik Lundh | 9e7dd4c | 2000-09-25 21:48:13 +0000 | [diff] [blame] | 4 | Written by Marc-Andre Lemburg (mal@lemburg.com). |
| 5 | Modified for Python 2.0 by Fredrik Lundh (fredrik@pythonware.com) |
Guido van Rossum | 603484d | 2000-03-10 22:52:46 +0000 | [diff] [blame] | 6 | |
Fredrik Lundh | 9e7dd4c | 2000-09-25 21:48:13 +0000 | [diff] [blame] | 7 | Copyright (c) Corporation for National Research Initiatives. |
Guido van Rossum | 603484d | 2000-03-10 22:52:46 +0000 | [diff] [blame] | 8 | |
| 9 | */ |
| 10 | |
| 11 | #include "Python.h" |
Guido van Rossum | 603484d | 2000-03-10 22:52:46 +0000 | [diff] [blame] | 12 | #include "unicodeobject.h" |
| 13 | |
Fredrik Lundh | 9e7dd4c | 2000-09-25 21:48:13 +0000 | [diff] [blame] | 14 | #define ALPHA_MASK 0x01 |
| 15 | #define DECIMAL_MASK 0x02 |
| 16 | #define DIGIT_MASK 0x04 |
| 17 | #define LOWER_MASK 0x08 |
| 18 | #define LINEBREAK_MASK 0x10 |
| 19 | #define SPACE_MASK 0x20 |
| 20 | #define TITLE_MASK 0x40 |
| 21 | #define UPPER_MASK 0x80 |
Jack Jansen | 56cdce3 | 2000-07-06 13:57:38 +0000 | [diff] [blame] | 22 | |
Fredrik Lundh | 9e7dd4c | 2000-09-25 21:48:13 +0000 | [diff] [blame] | 23 | typedef struct { |
Fredrik Lundh | 9e7dd4c | 2000-09-25 21:48:13 +0000 | [diff] [blame] | 24 | const Py_UNICODE upper; |
| 25 | const Py_UNICODE lower; |
| 26 | const Py_UNICODE title; |
| 27 | const unsigned char decimal; |
| 28 | const unsigned char digit; |
Hye-Shik Chang | 974ed7c | 2004-06-02 16:49:17 +0000 | [diff] [blame] | 29 | const unsigned short flags; |
Fredrik Lundh | 9e7dd4c | 2000-09-25 21:48:13 +0000 | [diff] [blame] | 30 | } _PyUnicode_TypeRecord; |
| 31 | |
| 32 | #include "unicodetype_db.h" |
| 33 | |
| 34 | static const _PyUnicode_TypeRecord * |
Fredrik Lundh | ee13dba | 2001-06-26 20:36:12 +0000 | [diff] [blame] | 35 | gettyperecord(Py_UNICODE code) |
Fredrik Lundh | 9e7dd4c | 2000-09-25 21:48:13 +0000 | [diff] [blame] | 36 | { |
| 37 | int index; |
| 38 | |
Hye-Shik Chang | 7db07e6 | 2003-12-29 01:36:01 +0000 | [diff] [blame] | 39 | #ifdef Py_UNICODE_WIDE |
Martin v. Löwis | 9def6a3 | 2002-10-18 16:11:54 +0000 | [diff] [blame] | 40 | if (code >= 0x110000) |
Fredrik Lundh | 9e7dd4c | 2000-09-25 21:48:13 +0000 | [diff] [blame] | 41 | index = 0; |
Hye-Shik Chang | 7db07e6 | 2003-12-29 01:36:01 +0000 | [diff] [blame] | 42 | else |
| 43 | #endif |
| 44 | { |
Fredrik Lundh | 9e7dd4c | 2000-09-25 21:48:13 +0000 | [diff] [blame] | 45 | index = index1[(code>>SHIFT)]; |
| 46 | index = index2[(index<<SHIFT)+(code&((1<<SHIFT)-1))]; |
| 47 | } |
Fredrik Lundh | ee13dba | 2001-06-26 20:36:12 +0000 | [diff] [blame] | 48 | |
Fredrik Lundh | 9e7dd4c | 2000-09-25 21:48:13 +0000 | [diff] [blame] | 49 | return &_PyUnicode_TypeRecords[index]; |
| 50 | } |
Jack Jansen | 56cdce3 | 2000-07-06 13:57:38 +0000 | [diff] [blame] | 51 | |
Marc-André Lemburg | 2cb94ab | 2005-10-20 19:06:35 +0000 | [diff] [blame] | 52 | /* Returns 1 for Unicode characters having the category 'Zl', 'Zp' or |
| 53 | type 'B', 0 otherwise. */ |
Guido van Rossum | 603484d | 2000-03-10 22:52:46 +0000 | [diff] [blame] | 54 | |
Marc-André Lemburg | 2cb94ab | 2005-10-20 19:06:35 +0000 | [diff] [blame] | 55 | int _PyUnicode_IsLinebreak(register const Py_UNICODE ch) |
Guido van Rossum | 603484d | 2000-03-10 22:52:46 +0000 | [diff] [blame] | 56 | { |
Marc-André Lemburg | 2cb94ab | 2005-10-20 19:06:35 +0000 | [diff] [blame] | 57 | switch (ch) { |
| 58 | case 0x000A: /* LINE FEED */ |
| 59 | case 0x000D: /* CARRIAGE RETURN */ |
| 60 | case 0x001C: /* FILE SEPARATOR */ |
| 61 | case 0x001D: /* GROUP SEPARATOR */ |
| 62 | case 0x001E: /* RECORD SEPARATOR */ |
| 63 | case 0x0085: /* NEXT LINE */ |
| 64 | case 0x2028: /* LINE SEPARATOR */ |
| 65 | case 0x2029: /* PARAGRAPH SEPARATOR */ |
| 66 | return 1; |
| 67 | default: |
| 68 | return 0; |
| 69 | } |
Guido van Rossum | 603484d | 2000-03-10 22:52:46 +0000 | [diff] [blame] | 70 | } |
| 71 | |
| 72 | /* Returns the titlecase Unicode characters corresponding to ch or just |
| 73 | ch if no titlecase mapping is known. */ |
| 74 | |
Martin v. Löwis | ce9b5a5 | 2001-06-27 06:28:56 +0000 | [diff] [blame] | 75 | Py_UNICODE _PyUnicode_ToTitlecase(register Py_UNICODE ch) |
Guido van Rossum | 603484d | 2000-03-10 22:52:46 +0000 | [diff] [blame] | 76 | { |
Fredrik Lundh | 9e7dd4c | 2000-09-25 21:48:13 +0000 | [diff] [blame] | 77 | const _PyUnicode_TypeRecord *ctype = gettyperecord(ch); |
Martin v. Löwis | edf368c | 2002-10-18 16:40:36 +0000 | [diff] [blame] | 78 | int delta; |
Fredrik Lundh | 9e7dd4c | 2000-09-25 21:48:13 +0000 | [diff] [blame] | 79 | |
| 80 | if (ctype->title) |
Martin v. Löwis | edf368c | 2002-10-18 16:40:36 +0000 | [diff] [blame] | 81 | delta = ctype->title; |
Martin v. Löwis | ce9b5a5 | 2001-06-27 06:28:56 +0000 | [diff] [blame] | 82 | else |
Martin v. Löwis | edf368c | 2002-10-18 16:40:36 +0000 | [diff] [blame] | 83 | delta = ctype->upper; |
Fredrik Lundh | 9e7dd4c | 2000-09-25 21:48:13 +0000 | [diff] [blame] | 84 | |
Martin v. Löwis | edf368c | 2002-10-18 16:40:36 +0000 | [diff] [blame] | 85 | if (delta >= 32768) |
| 86 | delta -= 65536; |
| 87 | |
| 88 | return ch + delta; |
Guido van Rossum | 603484d | 2000-03-10 22:52:46 +0000 | [diff] [blame] | 89 | } |
| 90 | |
| 91 | /* Returns 1 for Unicode characters having the category 'Lt', 0 |
| 92 | otherwise. */ |
| 93 | |
Fredrik Lundh | 72b0685 | 2001-06-27 22:08:26 +0000 | [diff] [blame] | 94 | int _PyUnicode_IsTitlecase(Py_UNICODE ch) |
Guido van Rossum | 603484d | 2000-03-10 22:52:46 +0000 | [diff] [blame] | 95 | { |
Fredrik Lundh | 9e7dd4c | 2000-09-25 21:48:13 +0000 | [diff] [blame] | 96 | const _PyUnicode_TypeRecord *ctype = gettyperecord(ch); |
| 97 | |
| 98 | return (ctype->flags & TITLE_MASK) != 0; |
Guido van Rossum | 603484d | 2000-03-10 22:52:46 +0000 | [diff] [blame] | 99 | } |
| 100 | |
| 101 | /* Returns the integer decimal (0-9) for Unicode characters having |
| 102 | this property, -1 otherwise. */ |
| 103 | |
Fredrik Lundh | 72b0685 | 2001-06-27 22:08:26 +0000 | [diff] [blame] | 104 | int _PyUnicode_ToDecimalDigit(Py_UNICODE ch) |
Guido van Rossum | 603484d | 2000-03-10 22:52:46 +0000 | [diff] [blame] | 105 | { |
Fredrik Lundh | 9e7dd4c | 2000-09-25 21:48:13 +0000 | [diff] [blame] | 106 | const _PyUnicode_TypeRecord *ctype = gettyperecord(ch); |
| 107 | |
| 108 | return (ctype->flags & DECIMAL_MASK) ? ctype->decimal : -1; |
Guido van Rossum | 603484d | 2000-03-10 22:52:46 +0000 | [diff] [blame] | 109 | } |
| 110 | |
Fredrik Lundh | 72b0685 | 2001-06-27 22:08:26 +0000 | [diff] [blame] | 111 | int _PyUnicode_IsDecimalDigit(Py_UNICODE ch) |
Guido van Rossum | 603484d | 2000-03-10 22:52:46 +0000 | [diff] [blame] | 112 | { |
| 113 | if (_PyUnicode_ToDecimalDigit(ch) < 0) |
| 114 | return 0; |
| 115 | return 1; |
| 116 | } |
| 117 | |
| 118 | /* Returns the integer digit (0-9) for Unicode characters having |
| 119 | this property, -1 otherwise. */ |
| 120 | |
Fredrik Lundh | 72b0685 | 2001-06-27 22:08:26 +0000 | [diff] [blame] | 121 | int _PyUnicode_ToDigit(Py_UNICODE ch) |
Guido van Rossum | 603484d | 2000-03-10 22:52:46 +0000 | [diff] [blame] | 122 | { |
Fredrik Lundh | 9e7dd4c | 2000-09-25 21:48:13 +0000 | [diff] [blame] | 123 | const _PyUnicode_TypeRecord *ctype = gettyperecord(ch); |
| 124 | |
| 125 | return (ctype->flags & DIGIT_MASK) ? ctype->digit : -1; |
Guido van Rossum | 603484d | 2000-03-10 22:52:46 +0000 | [diff] [blame] | 126 | } |
| 127 | |
Fredrik Lundh | 72b0685 | 2001-06-27 22:08:26 +0000 | [diff] [blame] | 128 | int _PyUnicode_IsDigit(Py_UNICODE ch) |
Guido van Rossum | 603484d | 2000-03-10 22:52:46 +0000 | [diff] [blame] | 129 | { |
| 130 | if (_PyUnicode_ToDigit(ch) < 0) |
| 131 | return 0; |
| 132 | return 1; |
| 133 | } |
| 134 | |
| 135 | /* Returns the numeric value as double for Unicode characters having |
| 136 | this property, -1.0 otherwise. */ |
| 137 | |
Fredrik Lundh | 9e7dd4c | 2000-09-25 21:48:13 +0000 | [diff] [blame] | 138 | /* TODO: replace with unicodetype_db.h table */ |
| 139 | |
Fredrik Lundh | 72b0685 | 2001-06-27 22:08:26 +0000 | [diff] [blame] | 140 | double _PyUnicode_ToNumeric(Py_UNICODE ch) |
Guido van Rossum | 603484d | 2000-03-10 22:52:46 +0000 | [diff] [blame] | 141 | { |
| 142 | switch (ch) { |
| 143 | case 0x3007: |
| 144 | return (double) 0; |
| 145 | case 0x09F4: |
| 146 | case 0x215F: |
| 147 | case 0x2160: |
| 148 | case 0x2170: |
| 149 | case 0x3021: |
| 150 | case 0x3280: |
| 151 | return (double) 1; |
| 152 | case 0x00BD: |
| 153 | return (double) 1 / 2; |
| 154 | case 0x2153: |
| 155 | return (double) 1 / 3; |
| 156 | case 0x00BC: |
| 157 | return (double) 1 / 4; |
| 158 | case 0x2155: |
| 159 | return (double) 1 / 5; |
| 160 | case 0x2159: |
| 161 | return (double) 1 / 6; |
| 162 | case 0x215B: |
| 163 | return (double) 1 / 8; |
| 164 | case 0x0BF0: |
| 165 | case 0x1372: |
| 166 | case 0x2169: |
| 167 | case 0x2179: |
| 168 | case 0x2469: |
| 169 | case 0x247D: |
| 170 | case 0x2491: |
| 171 | case 0x277F: |
| 172 | case 0x2789: |
| 173 | case 0x2793: |
| 174 | case 0x3038: |
| 175 | case 0x3289: |
| 176 | return (double) 10; |
| 177 | case 0x0BF1: |
| 178 | case 0x137B: |
| 179 | case 0x216D: |
| 180 | case 0x217D: |
| 181 | return (double) 100; |
| 182 | case 0x0BF2: |
| 183 | case 0x216F: |
| 184 | case 0x217F: |
| 185 | case 0x2180: |
| 186 | return (double) 1000; |
| 187 | case 0x137C: |
| 188 | case 0x2182: |
| 189 | return (double) 10000; |
| 190 | case 0x216A: |
| 191 | case 0x217A: |
| 192 | case 0x246A: |
| 193 | case 0x247E: |
| 194 | case 0x2492: |
| 195 | return (double) 11; |
| 196 | case 0x216B: |
| 197 | case 0x217B: |
| 198 | case 0x246B: |
| 199 | case 0x247F: |
| 200 | case 0x2493: |
| 201 | return (double) 12; |
| 202 | case 0x246C: |
| 203 | case 0x2480: |
| 204 | case 0x2494: |
| 205 | return (double) 13; |
| 206 | case 0x246D: |
| 207 | case 0x2481: |
| 208 | case 0x2495: |
| 209 | return (double) 14; |
| 210 | case 0x246E: |
| 211 | case 0x2482: |
| 212 | case 0x2496: |
| 213 | return (double) 15; |
| 214 | case 0x09F9: |
| 215 | case 0x246F: |
| 216 | case 0x2483: |
| 217 | case 0x2497: |
| 218 | return (double) 16; |
| 219 | case 0x16EE: |
| 220 | case 0x2470: |
| 221 | case 0x2484: |
| 222 | case 0x2498: |
| 223 | return (double) 17; |
| 224 | case 0x16EF: |
| 225 | case 0x2471: |
| 226 | case 0x2485: |
| 227 | case 0x2499: |
| 228 | return (double) 18; |
| 229 | case 0x16F0: |
| 230 | case 0x2472: |
| 231 | case 0x2486: |
| 232 | case 0x249A: |
| 233 | return (double) 19; |
| 234 | case 0x09F5: |
| 235 | case 0x2161: |
| 236 | case 0x2171: |
| 237 | case 0x3022: |
| 238 | case 0x3281: |
| 239 | return (double) 2; |
| 240 | case 0x2154: |
| 241 | return (double) 2 / 3; |
| 242 | case 0x2156: |
| 243 | return (double) 2 / 5; |
| 244 | case 0x1373: |
| 245 | case 0x2473: |
| 246 | case 0x2487: |
| 247 | case 0x249B: |
| 248 | case 0x3039: |
| 249 | return (double) 20; |
| 250 | case 0x09F6: |
| 251 | case 0x2162: |
| 252 | case 0x2172: |
| 253 | case 0x3023: |
| 254 | case 0x3282: |
| 255 | return (double) 3; |
| 256 | case 0x00BE: |
| 257 | return (double) 3 / 4; |
| 258 | case 0x2157: |
| 259 | return (double) 3 / 5; |
| 260 | case 0x215C: |
| 261 | return (double) 3 / 8; |
| 262 | case 0x1374: |
| 263 | case 0x303A: |
| 264 | return (double) 30; |
| 265 | case 0x09F7: |
| 266 | case 0x2163: |
| 267 | case 0x2173: |
| 268 | case 0x3024: |
| 269 | case 0x3283: |
| 270 | return (double) 4; |
| 271 | case 0x2158: |
| 272 | return (double) 4 / 5; |
| 273 | case 0x1375: |
| 274 | return (double) 40; |
| 275 | case 0x2164: |
| 276 | case 0x2174: |
| 277 | case 0x3025: |
| 278 | case 0x3284: |
| 279 | return (double) 5; |
| 280 | case 0x215A: |
| 281 | return (double) 5 / 6; |
| 282 | case 0x215D: |
| 283 | return (double) 5 / 8; |
| 284 | case 0x1376: |
| 285 | case 0x216C: |
| 286 | case 0x217C: |
| 287 | return (double) 50; |
| 288 | case 0x216E: |
| 289 | case 0x217E: |
| 290 | return (double) 500; |
| 291 | case 0x2181: |
| 292 | return (double) 5000; |
| 293 | case 0x2165: |
| 294 | case 0x2175: |
| 295 | case 0x3026: |
| 296 | case 0x3285: |
| 297 | return (double) 6; |
| 298 | case 0x1377: |
| 299 | return (double) 60; |
| 300 | case 0x2166: |
| 301 | case 0x2176: |
| 302 | case 0x3027: |
| 303 | case 0x3286: |
| 304 | return (double) 7; |
| 305 | case 0x215E: |
| 306 | return (double) 7 / 8; |
| 307 | case 0x1378: |
| 308 | return (double) 70; |
| 309 | case 0x2167: |
| 310 | case 0x2177: |
| 311 | case 0x3028: |
| 312 | case 0x3287: |
| 313 | return (double) 8; |
| 314 | case 0x1379: |
| 315 | return (double) 80; |
| 316 | case 0x2168: |
| 317 | case 0x2178: |
| 318 | case 0x3029: |
| 319 | case 0x3288: |
| 320 | return (double) 9; |
| 321 | case 0x137A: |
| 322 | return (double) 90; |
| 323 | default: |
| 324 | return (double) _PyUnicode_ToDigit(ch); |
| 325 | } |
| 326 | } |
| 327 | |
Fredrik Lundh | 72b0685 | 2001-06-27 22:08:26 +0000 | [diff] [blame] | 328 | int _PyUnicode_IsNumeric(Py_UNICODE ch) |
Guido van Rossum | 603484d | 2000-03-10 22:52:46 +0000 | [diff] [blame] | 329 | { |
| 330 | if (_PyUnicode_ToNumeric(ch) < 0.0) |
| 331 | return 0; |
| 332 | return 1; |
| 333 | } |
| 334 | |
| 335 | #ifndef WANT_WCTYPE_FUNCTIONS |
| 336 | |
Guido van Rossum | dc742b3 | 2000-04-11 15:39:02 +0000 | [diff] [blame] | 337 | /* Returns 1 for Unicode characters having the bidirectional type |
| 338 | 'WS', 'B' or 'S' or the category 'Zs', 0 otherwise. */ |
Guido van Rossum | 603484d | 2000-03-10 22:52:46 +0000 | [diff] [blame] | 339 | |
Marc-André Lemburg | 2cb94ab | 2005-10-20 19:06:35 +0000 | [diff] [blame] | 340 | int _PyUnicode_IsWhitespace(register const Py_UNICODE ch) |
Guido van Rossum | 603484d | 2000-03-10 22:52:46 +0000 | [diff] [blame] | 341 | { |
Marc-André Lemburg | 2cb94ab | 2005-10-20 19:06:35 +0000 | [diff] [blame] | 342 | switch (ch) { |
| 343 | case 0x0009: /* HORIZONTAL TABULATION */ |
| 344 | case 0x000A: /* LINE FEED */ |
| 345 | case 0x000B: /* VERTICAL TABULATION */ |
| 346 | case 0x000C: /* FORM FEED */ |
| 347 | case 0x000D: /* CARRIAGE RETURN */ |
| 348 | case 0x001C: /* FILE SEPARATOR */ |
| 349 | case 0x001D: /* GROUP SEPARATOR */ |
| 350 | case 0x001E: /* RECORD SEPARATOR */ |
| 351 | case 0x001F: /* UNIT SEPARATOR */ |
| 352 | case 0x0020: /* SPACE */ |
| 353 | case 0x0085: /* NEXT LINE */ |
| 354 | case 0x00A0: /* NO-BREAK SPACE */ |
| 355 | case 0x1680: /* OGHAM SPACE MARK */ |
| 356 | case 0x2000: /* EN QUAD */ |
| 357 | case 0x2001: /* EM QUAD */ |
| 358 | case 0x2002: /* EN SPACE */ |
| 359 | case 0x2003: /* EM SPACE */ |
| 360 | case 0x2004: /* THREE-PER-EM SPACE */ |
| 361 | case 0x2005: /* FOUR-PER-EM SPACE */ |
| 362 | case 0x2006: /* SIX-PER-EM SPACE */ |
| 363 | case 0x2007: /* FIGURE SPACE */ |
| 364 | case 0x2008: /* PUNCTUATION SPACE */ |
| 365 | case 0x2009: /* THIN SPACE */ |
| 366 | case 0x200A: /* HAIR SPACE */ |
| 367 | case 0x200B: /* ZERO WIDTH SPACE */ |
| 368 | case 0x2028: /* LINE SEPARATOR */ |
| 369 | case 0x2029: /* PARAGRAPH SEPARATOR */ |
| 370 | case 0x202F: /* NARROW NO-BREAK SPACE */ |
| 371 | case 0x205F: /* MEDIUM MATHEMATICAL SPACE */ |
| 372 | case 0x3000: /* IDEOGRAPHIC SPACE */ |
| 373 | return 1; |
| 374 | default: |
| 375 | return 0; |
| 376 | } |
Guido van Rossum | 603484d | 2000-03-10 22:52:46 +0000 | [diff] [blame] | 377 | } |
| 378 | |
| 379 | /* Returns 1 for Unicode characters having the category 'Ll', 0 |
| 380 | otherwise. */ |
| 381 | |
Fredrik Lundh | 72b0685 | 2001-06-27 22:08:26 +0000 | [diff] [blame] | 382 | int _PyUnicode_IsLowercase(Py_UNICODE ch) |
Guido van Rossum | 603484d | 2000-03-10 22:52:46 +0000 | [diff] [blame] | 383 | { |
Fredrik Lundh | 9e7dd4c | 2000-09-25 21:48:13 +0000 | [diff] [blame] | 384 | const _PyUnicode_TypeRecord *ctype = gettyperecord(ch); |
| 385 | |
| 386 | return (ctype->flags & LOWER_MASK) != 0; |
Guido van Rossum | 603484d | 2000-03-10 22:52:46 +0000 | [diff] [blame] | 387 | } |
| 388 | |
| 389 | /* Returns 1 for Unicode characters having the category 'Lu', 0 |
| 390 | otherwise. */ |
| 391 | |
Fredrik Lundh | 72b0685 | 2001-06-27 22:08:26 +0000 | [diff] [blame] | 392 | int _PyUnicode_IsUppercase(Py_UNICODE ch) |
Guido van Rossum | 603484d | 2000-03-10 22:52:46 +0000 | [diff] [blame] | 393 | { |
Fredrik Lundh | 9e7dd4c | 2000-09-25 21:48:13 +0000 | [diff] [blame] | 394 | const _PyUnicode_TypeRecord *ctype = gettyperecord(ch); |
| 395 | |
| 396 | return (ctype->flags & UPPER_MASK) != 0; |
Guido van Rossum | 603484d | 2000-03-10 22:52:46 +0000 | [diff] [blame] | 397 | } |
| 398 | |
| 399 | /* Returns the uppercase Unicode characters corresponding to ch or just |
| 400 | ch if no uppercase mapping is known. */ |
| 401 | |
Fredrik Lundh | 72b0685 | 2001-06-27 22:08:26 +0000 | [diff] [blame] | 402 | Py_UNICODE _PyUnicode_ToUppercase(Py_UNICODE ch) |
Guido van Rossum | 603484d | 2000-03-10 22:52:46 +0000 | [diff] [blame] | 403 | { |
Fredrik Lundh | 9e7dd4c | 2000-09-25 21:48:13 +0000 | [diff] [blame] | 404 | const _PyUnicode_TypeRecord *ctype = gettyperecord(ch); |
Martin v. Löwis | edf368c | 2002-10-18 16:40:36 +0000 | [diff] [blame] | 405 | int delta = ctype->upper; |
| 406 | if (delta >= 32768) |
| 407 | delta -= 65536; |
| 408 | return ch + delta; |
Guido van Rossum | 603484d | 2000-03-10 22:52:46 +0000 | [diff] [blame] | 409 | } |
| 410 | |
| 411 | /* Returns the lowercase Unicode characters corresponding to ch or just |
| 412 | ch if no lowercase mapping is known. */ |
| 413 | |
Fredrik Lundh | 72b0685 | 2001-06-27 22:08:26 +0000 | [diff] [blame] | 414 | Py_UNICODE _PyUnicode_ToLowercase(Py_UNICODE ch) |
Guido van Rossum | 603484d | 2000-03-10 22:52:46 +0000 | [diff] [blame] | 415 | { |
Fredrik Lundh | 9e7dd4c | 2000-09-25 21:48:13 +0000 | [diff] [blame] | 416 | const _PyUnicode_TypeRecord *ctype = gettyperecord(ch); |
Martin v. Löwis | edf368c | 2002-10-18 16:40:36 +0000 | [diff] [blame] | 417 | int delta = ctype->lower; |
| 418 | if (delta >= 32768) |
| 419 | delta -= 65536; |
| 420 | return ch + delta; |
Guido van Rossum | 603484d | 2000-03-10 22:52:46 +0000 | [diff] [blame] | 421 | } |
| 422 | |
Marc-André Lemburg | f3938f5 | 2000-07-05 09:48:59 +0000 | [diff] [blame] | 423 | /* Returns 1 for Unicode characters having the category 'Ll', 'Lu', 'Lt', |
| 424 | 'Lo' or 'Lm', 0 otherwise. */ |
| 425 | |
Fredrik Lundh | 72b0685 | 2001-06-27 22:08:26 +0000 | [diff] [blame] | 426 | int _PyUnicode_IsAlpha(Py_UNICODE ch) |
Marc-André Lemburg | f3938f5 | 2000-07-05 09:48:59 +0000 | [diff] [blame] | 427 | { |
Fredrik Lundh | 9e7dd4c | 2000-09-25 21:48:13 +0000 | [diff] [blame] | 428 | const _PyUnicode_TypeRecord *ctype = gettyperecord(ch); |
Marc-André Lemburg | f3938f5 | 2000-07-05 09:48:59 +0000 | [diff] [blame] | 429 | |
Fredrik Lundh | 9e7dd4c | 2000-09-25 21:48:13 +0000 | [diff] [blame] | 430 | return (ctype->flags & ALPHA_MASK) != 0; |
Marc-André Lemburg | f3938f5 | 2000-07-05 09:48:59 +0000 | [diff] [blame] | 431 | } |
| 432 | |
Guido van Rossum | 603484d | 2000-03-10 22:52:46 +0000 | [diff] [blame] | 433 | #else |
| 434 | |
| 435 | /* Export the interfaces using the wchar_t type for portability |
| 436 | reasons: */ |
| 437 | |
Fredrik Lundh | 72b0685 | 2001-06-27 22:08:26 +0000 | [diff] [blame] | 438 | int _PyUnicode_IsWhitespace(Py_UNICODE ch) |
Guido van Rossum | 603484d | 2000-03-10 22:52:46 +0000 | [diff] [blame] | 439 | { |
| 440 | return iswspace(ch); |
| 441 | } |
| 442 | |
Fredrik Lundh | 72b0685 | 2001-06-27 22:08:26 +0000 | [diff] [blame] | 443 | int _PyUnicode_IsLowercase(Py_UNICODE ch) |
Guido van Rossum | 603484d | 2000-03-10 22:52:46 +0000 | [diff] [blame] | 444 | { |
| 445 | return iswlower(ch); |
| 446 | } |
| 447 | |
Fredrik Lundh | 72b0685 | 2001-06-27 22:08:26 +0000 | [diff] [blame] | 448 | int _PyUnicode_IsUppercase(Py_UNICODE ch) |
Guido van Rossum | 603484d | 2000-03-10 22:52:46 +0000 | [diff] [blame] | 449 | { |
| 450 | return iswupper(ch); |
| 451 | } |
| 452 | |
Fredrik Lundh | 72b0685 | 2001-06-27 22:08:26 +0000 | [diff] [blame] | 453 | Py_UNICODE _PyUnicode_ToLowercase(Py_UNICODE ch) |
Guido van Rossum | 603484d | 2000-03-10 22:52:46 +0000 | [diff] [blame] | 454 | { |
| 455 | return towlower(ch); |
| 456 | } |
| 457 | |
Fredrik Lundh | 72b0685 | 2001-06-27 22:08:26 +0000 | [diff] [blame] | 458 | Py_UNICODE _PyUnicode_ToUppercase(Py_UNICODE ch) |
Guido van Rossum | 603484d | 2000-03-10 22:52:46 +0000 | [diff] [blame] | 459 | { |
| 460 | return towupper(ch); |
| 461 | } |
| 462 | |
Fredrik Lundh | 72b0685 | 2001-06-27 22:08:26 +0000 | [diff] [blame] | 463 | int _PyUnicode_IsAlpha(Py_UNICODE ch) |
Marc-André Lemburg | f3938f5 | 2000-07-05 09:48:59 +0000 | [diff] [blame] | 464 | { |
| 465 | return iswalpha(ch); |
| 466 | } |
| 467 | |
Guido van Rossum | 603484d | 2000-03-10 22:52:46 +0000 | [diff] [blame] | 468 | #endif |