Mercurial > hg > octave-nkf
annotate liboctave/strptime.c @ 9838:55219e65c7cd
fix typo
| author | Jaroslav Hajek <highegg@gmail.com> |
|---|---|
| date | Thu, 19 Nov 2009 12:23:52 +0100 |
| parents | cf59d542f33e |
| children |
| rev | line source |
|---|---|
| 3465 | 1 /* Convert a string representation of time to a time value. |
| 2 Copyright (C) 1996, 1997, 1998, 1999 Free Software Foundation, Inc. | |
| 3 This file is part of the GNU C Library. | |
| 4 Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996. | |
| 5 | |
| 6 The GNU C Library is free software; you can redistribute it and/or | |
| 7 modify it under the terms of the GNU Library General Public License as | |
| 8 published by the Free Software Foundation; either version 2 of the | |
| 9 License, or (at your option) any later version. | |
| 10 | |
| 11 The GNU C Library is distributed in the hope that it will be useful, | |
| 12 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 14 Library General Public License for more details. | |
| 15 | |
| 16 You should have received a copy of the GNU Library General Public | |
| 17 License along with the GNU C Library; see the file COPYING.LIB. If not, | |
| 5307 | 18 write to the Free Software Foundation, Inc., 51 Franklin Street, |
| 19 Fifth Floor, Boston, MA 02110-1301, USA. */ | |
| 3465 | 20 |
|
8202
cf59d542f33e
replace all TODOs and XXXs with FIXMEs
Jaroslav Hajek <highegg@gmail.com>
parents:
7058
diff
changeset
|
21 /* FIXME: This version of the implementation is not really complete. |
| 3465 | 22 Some of the fields cannot add information alone. But if seeing |
| 23 some of them in the same format (such as year, week and weekday) | |
| 24 this is enough information for determining the date. */ | |
| 25 | |
| 26 #ifdef HAVE_CONFIG_H | |
| 27 # include <config.h> | |
| 28 #endif | |
| 29 | |
| 7058 | 30 #if ! defined (HAVE_STRPTIME) || defined (OCTAVE_HAVE_BROKEN_STRPTIME) |
| 3750 | 31 |
| 3465 | 32 #include <ctype.h> |
| 3470 | 33 #ifdef _LIBC |
| 34 # include <langinfo.h> | |
| 35 #endif | |
| 3465 | 36 #include <limits.h> |
| 37 #include <string.h> | |
| 38 #include <time.h> | |
| 39 | |
| 40 #ifdef _LIBC | |
| 41 # include "../locale/localeinfo.h" | |
| 42 #endif | |
| 43 | |
| 44 | |
| 45 #ifndef __P | |
| 46 # if defined (__GNUC__) || (defined (__STDC__) && __STDC__) | |
| 47 # define __P(args) args | |
| 48 # else | |
| 49 # define __P(args) () | |
| 50 # endif /* GCC. */ | |
| 51 #endif /* Not __P. */ | |
| 52 | |
| 53 | |
| 54 #if ! HAVE_LOCALTIME_R && ! defined localtime_r | |
| 55 # ifdef _LIBC | |
| 56 # define localtime_r __localtime_r | |
| 57 # else | |
| 58 /* Approximate localtime_r as best we can in its absence. */ | |
| 59 # define localtime_r my_localtime_r | |
| 60 static struct tm *localtime_r __P ((const time_t *, struct tm *)); | |
| 61 static struct tm * | |
| 62 localtime_r (t, tp) | |
| 63 const time_t *t; | |
| 64 struct tm *tp; | |
| 65 { | |
| 66 struct tm *l = localtime (t); | |
| 67 if (! l) | |
| 68 return 0; | |
| 69 *tp = *l; | |
| 70 return tp; | |
| 71 } | |
| 72 # endif /* ! _LIBC */ | |
| 73 #endif /* ! HAVE_LOCALTIME_R && ! defined (localtime_r) */ | |
| 74 | |
| 75 | |
| 76 #define match_char(ch1, ch2) if (ch1 != ch2) return NULL | |
| 77 #if defined __GNUC__ && __GNUC__ >= 2 | |
| 78 # define match_string(cs1, s2) \ | |
| 79 ({ size_t len = strlen (cs1); \ | |
| 80 int result = strncasecmp ((cs1), (s2), len) == 0; \ | |
| 81 if (result) (s2) += len; \ | |
| 82 result; }) | |
| 83 #else | |
| 84 /* Oh come on. Get a reasonable compiler. */ | |
| 85 # define match_string(cs1, s2) \ | |
| 86 (strncasecmp ((cs1), (s2), strlen (cs1)) ? 0 : ((s2) += strlen (cs1), 1)) | |
| 87 #endif | |
| 88 /* We intentionally do not use isdigit() for testing because this will | |
| 89 lead to problems with the wide character version. */ | |
| 90 #define get_number(from, to, n) \ | |
| 91 do { \ | |
| 92 int __n = n; \ | |
| 93 val = 0; \ | |
| 94 while (*rp == ' ') \ | |
| 95 ++rp; \ | |
| 96 if (*rp < '0' || *rp > '9') \ | |
| 97 return NULL; \ | |
| 98 do { \ | |
| 99 val *= 10; \ | |
| 100 val += *rp++ - '0'; \ | |
| 101 } while (--__n > 0 && val * 10 <= to && *rp >= '0' && *rp <= '9'); \ | |
| 102 if (val < from || val > to) \ | |
| 103 return NULL; \ | |
| 104 } while (0) | |
| 105 #ifdef _NL_CURRENT | |
| 106 # define get_alt_number(from, to, n) \ | |
| 107 ({ \ | |
| 108 __label__ do_normal; \ | |
| 109 if (*decided != raw) \ | |
| 110 { \ | |
| 111 const char *alts = _NL_CURRENT (LC_TIME, ALT_DIGITS); \ | |
| 112 int __n = n; \ | |
| 113 int any = 0; \ | |
| 114 while (*rp == ' ') \ | |
| 115 ++rp; \ | |
| 116 val = 0; \ | |
| 117 do { \ | |
| 118 val *= 10; \ | |
| 119 while (*alts != '\0') \ | |
| 120 { \ | |
| 121 size_t len = strlen (alts); \ | |
| 122 if (strncasecmp (alts, rp, len) == 0) \ | |
| 123 break; \ | |
| 124 alts += len + 1; \ | |
| 125 ++val; \ | |
| 126 } \ | |
| 127 if (*alts == '\0') \ | |
| 128 { \ | |
| 129 if (*decided == not && ! any) \ | |
| 130 goto do_normal; \ | |
| 131 /* If we haven't read anything it's an error. */ \ | |
| 132 if (! any) \ | |
| 133 return NULL; \ | |
| 134 /* Correct the premature multiplication. */ \ | |
| 135 val /= 10; \ | |
| 136 break; \ | |
| 137 } \ | |
| 138 else \ | |
| 139 *decided = loc; \ | |
| 140 } while (--__n > 0 && val * 10 <= to); \ | |
| 141 if (val < from || val > to) \ | |
| 142 return NULL; \ | |
| 143 } \ | |
| 144 else \ | |
| 145 { \ | |
| 146 do_normal: \ | |
| 147 get_number (from, to, n); \ | |
| 148 } \ | |
| 149 0; \ | |
| 150 }) | |
| 151 #else | |
| 152 # define get_alt_number(from, to, n) \ | |
| 153 /* We don't have the alternate representation. */ \ | |
| 154 get_number(from, to, n) | |
| 155 #endif | |
| 156 #define recursive(new_fmt) \ | |
| 157 (*(new_fmt) != '\0' \ | |
| 158 && (rp = strptime_internal (rp, (new_fmt), tm, decided)) != NULL) | |
| 159 | |
| 160 | |
| 161 #ifdef _LIBC | |
| 162 /* This is defined in locale/C-time.c in the GNU libc. */ | |
| 163 extern const struct locale_data _nl_C_LC_TIME; | |
| 164 extern const unsigned short int __mon_yday[2][13]; | |
| 165 | |
| 166 # define weekday_name (&_nl_C_LC_TIME.values[_NL_ITEM_INDEX (DAY_1)].string) | |
| 167 # define ab_weekday_name \ | |
| 168 (&_nl_C_LC_TIME.values[_NL_ITEM_INDEX (ABDAY_1)].string) | |
| 169 # define month_name (&_nl_C_LC_TIME.values[_NL_ITEM_INDEX (MON_1)].string) | |
| 170 # define ab_month_name (&_nl_C_LC_TIME.values[_NL_ITEM_INDEX (ABMON_1)].string) | |
| 171 # define HERE_D_T_FMT (_nl_C_LC_TIME.values[_NL_ITEM_INDEX (D_T_FMT)].string) | |
| 172 # define HERE_D_FMT (_nl_C_LC_TIME.values[_NL_ITEM_INDEX (D_FMT)].string) | |
| 173 # define HERE_AM_STR (_nl_C_LC_TIME.values[_NL_ITEM_INDEX (AM_STR)].string) | |
| 174 # define HERE_PM_STR (_nl_C_LC_TIME.values[_NL_ITEM_INDEX (PM_STR)].string) | |
| 175 # define HERE_T_FMT_AMPM \ | |
| 176 (_nl_C_LC_TIME.values[_NL_ITEM_INDEX (T_FMT_AMPM)].string) | |
| 177 # define HERE_T_FMT (_nl_C_LC_TIME.values[_NL_ITEM_INDEX (T_FMT)].string) | |
| 178 | |
| 179 # define strncasecmp(s1, s2, n) __strncasecmp (s1, s2, n) | |
| 180 #else | |
| 181 static char const weekday_name[][10] = | |
| 182 { | |
| 183 "Sunday", "Monday", "Tuesday", "Wednesday", | |
| 184 "Thursday", "Friday", "Saturday" | |
| 185 }; | |
| 186 static char const ab_weekday_name[][4] = | |
| 187 { | |
| 188 "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" | |
| 189 }; | |
| 190 static char const month_name[][10] = | |
| 191 { | |
| 192 "January", "February", "March", "April", "May", "June", | |
| 193 "July", "August", "September", "October", "November", "December" | |
| 194 }; | |
| 195 static char const ab_month_name[][4] = | |
| 196 { | |
| 197 "Jan", "Feb", "Mar", "Apr", "May", "Jun", | |
| 198 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" | |
| 199 }; | |
| 200 # define HERE_D_T_FMT "%a %b %e %H:%M:%S %Y" | |
| 201 # define HERE_D_FMT "%m/%d/%y" | |
| 202 # define HERE_AM_STR "AM" | |
| 203 # define HERE_PM_STR "PM" | |
| 204 # define HERE_T_FMT_AMPM "%I:%M:%S %p" | |
| 205 # define HERE_T_FMT "%H:%M:%S" | |
| 206 | |
| 3504 | 207 const unsigned short int __mon_yday[2][13] = |
| 3465 | 208 { |
| 209 /* Normal years. */ | |
| 210 { 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365 }, | |
| 211 /* Leap years. */ | |
| 212 { 0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335, 366 } | |
| 213 }; | |
| 214 #endif | |
| 215 | |
| 216 /* Status of lookup: do we use the locale data or the raw data? */ | |
| 217 enum locale_status { not, loc, raw }; | |
| 218 | |
| 219 | |
| 220 #ifndef __isleap | |
| 221 /* Nonzero if YEAR is a leap year (every 4 years, | |
| 222 except every 100th isn't, and every 400th is). */ | |
| 223 # define __isleap(year) \ | |
| 224 ((year) % 4 == 0 && ((year) % 100 != 0 || (year) % 400 == 0)) | |
| 225 #endif | |
| 226 | |
| 227 /* Compute the day of the week. */ | |
| 228 static void | |
| 229 day_of_the_week (struct tm *tm) | |
| 230 { | |
| 231 /* We know that January 1st 1970 was a Thursday (= 4). Compute the | |
| 232 the difference between this data in the one on TM and so determine | |
| 233 the weekday. */ | |
| 234 int corr_year = 1900 + tm->tm_year - (tm->tm_mon < 2); | |
| 235 int wday = (-473 | |
| 236 + (365 * (tm->tm_year - 70)) | |
| 237 + (corr_year / 4) | |
| 238 - ((corr_year / 4) / 25) + ((corr_year / 4) % 25 < 0) | |
| 239 + (((corr_year / 4) / 25) / 4) | |
| 240 + __mon_yday[0][tm->tm_mon] | |
| 241 + tm->tm_mday - 1); | |
| 6205 | 242 tm->tm_wday = ((wday % 7) + 7) % 7; |
| 3465 | 243 } |
| 244 | |
| 245 /* Compute the day of the year. */ | |
| 246 static void | |
| 247 day_of_the_year (struct tm *tm) | |
| 248 { | |
| 249 tm->tm_yday = (__mon_yday[__isleap (1900 + tm->tm_year)][tm->tm_mon] | |
| 250 + (tm->tm_mday - 1)); | |
| 251 } | |
| 252 | |
| 253 static char * | |
| 254 #ifdef _LIBC | |
| 255 internal_function | |
| 256 #endif | |
| 257 strptime_internal __P ((const char *buf, const char *format, struct tm *tm, | |
| 258 enum locale_status *decided)); | |
| 259 | |
| 260 static char * | |
| 261 #ifdef _LIBC | |
| 262 internal_function | |
| 263 #endif | |
| 264 strptime_internal (buf, format, tm, decided) | |
| 265 const char *buf; | |
| 266 const char *format; | |
| 267 struct tm *tm; | |
| 268 enum locale_status *decided; | |
| 269 { | |
| 270 const char *rp; | |
| 271 const char *fmt; | |
| 272 int cnt; | |
| 273 size_t val; | |
| 274 int have_I, is_pm; | |
| 275 int century, want_century; | |
| 276 int have_wday, want_xday; | |
| 277 int have_yday; | |
| 278 int have_mon, have_mday; | |
| 279 | |
| 280 rp = buf; | |
| 281 fmt = format; | |
| 282 have_I = is_pm = 0; | |
| 283 century = -1; | |
| 284 want_century = 0; | |
| 285 have_wday = want_xday = have_yday = have_mon = have_mday = 0; | |
| 286 | |
| 287 while (*fmt != '\0') | |
| 288 { | |
| 289 /* A white space in the format string matches 0 more or white | |
| 290 space in the input string. */ | |
| 291 if (isspace (*fmt)) | |
| 292 { | |
| 293 while (isspace (*rp)) | |
| 294 ++rp; | |
| 295 ++fmt; | |
| 296 continue; | |
| 297 } | |
| 298 | |
| 299 /* Any character but `%' must be matched by the same character | |
| 300 in the iput string. */ | |
| 301 if (*fmt != '%') | |
| 302 { | |
| 303 match_char (*fmt++, *rp++); | |
| 304 continue; | |
| 305 } | |
| 306 | |
| 307 ++fmt; | |
| 308 #ifndef _NL_CURRENT | |
| 309 /* We need this for handling the `E' modifier. */ | |
| 310 start_over: | |
| 311 #endif | |
| 312 switch (*fmt++) | |
| 313 { | |
| 314 case '%': | |
| 315 /* Match the `%' character itself. */ | |
| 316 match_char ('%', *rp++); | |
| 317 break; | |
| 318 case 'a': | |
| 319 case 'A': | |
| 320 /* Match day of week. */ | |
| 321 for (cnt = 0; cnt < 7; ++cnt) | |
| 322 { | |
| 323 #ifdef _NL_CURRENT | |
| 324 if (*decided !=raw) | |
| 325 { | |
| 326 if (match_string (_NL_CURRENT (LC_TIME, DAY_1 + cnt), rp)) | |
| 327 { | |
| 328 if (*decided == not | |
| 329 && strcmp (_NL_CURRENT (LC_TIME, DAY_1 + cnt), | |
| 330 weekday_name[cnt])) | |
| 331 *decided = loc; | |
| 332 break; | |
| 333 } | |
| 334 if (match_string (_NL_CURRENT (LC_TIME, ABDAY_1 + cnt), rp)) | |
| 335 { | |
| 336 if (*decided == not | |
| 337 && strcmp (_NL_CURRENT (LC_TIME, ABDAY_1 + cnt), | |
| 338 ab_weekday_name[cnt])) | |
| 339 *decided = loc; | |
| 340 break; | |
| 341 } | |
| 342 } | |
| 343 #endif | |
| 344 if (*decided != loc | |
| 345 && (match_string (weekday_name[cnt], rp) | |
| 346 || match_string (ab_weekday_name[cnt], rp))) | |
| 347 { | |
| 348 *decided = raw; | |
| 349 break; | |
| 350 } | |
| 351 } | |
| 352 if (cnt == 7) | |
| 353 /* Does not match a weekday name. */ | |
| 354 return NULL; | |
| 355 tm->tm_wday = cnt; | |
| 356 have_wday = 1; | |
| 357 break; | |
| 358 case 'b': | |
| 359 case 'B': | |
| 360 case 'h': | |
| 361 /* Match month name. */ | |
| 362 for (cnt = 0; cnt < 12; ++cnt) | |
| 363 { | |
| 364 #ifdef _NL_CURRENT | |
| 365 if (*decided !=raw) | |
| 366 { | |
| 367 if (match_string (_NL_CURRENT (LC_TIME, MON_1 + cnt), rp)) | |
| 368 { | |
| 369 if (*decided == not | |
| 370 && strcmp (_NL_CURRENT (LC_TIME, MON_1 + cnt), | |
| 371 month_name[cnt])) | |
| 372 *decided = loc; | |
| 373 break; | |
| 374 } | |
| 375 if (match_string (_NL_CURRENT (LC_TIME, ABMON_1 + cnt), rp)) | |
| 376 { | |
| 377 if (*decided == not | |
| 378 && strcmp (_NL_CURRENT (LC_TIME, ABMON_1 + cnt), | |
| 379 ab_month_name[cnt])) | |
| 380 *decided = loc; | |
| 381 break; | |
| 382 } | |
| 383 } | |
| 384 #endif | |
| 385 if (match_string (month_name[cnt], rp) | |
| 386 || match_string (ab_month_name[cnt], rp)) | |
| 387 { | |
| 388 *decided = raw; | |
| 389 break; | |
| 390 } | |
| 391 } | |
| 392 if (cnt == 12) | |
| 393 /* Does not match a month name. */ | |
| 394 return NULL; | |
| 395 tm->tm_mon = cnt; | |
| 396 want_xday = 1; | |
| 397 break; | |
| 398 case 'c': | |
| 399 /* Match locale's date and time format. */ | |
| 400 #ifdef _NL_CURRENT | |
| 401 if (*decided != raw) | |
| 402 { | |
| 403 if (!recursive (_NL_CURRENT (LC_TIME, D_T_FMT))) | |
| 404 { | |
| 405 if (*decided == loc) | |
| 406 return NULL; | |
| 407 } | |
| 408 else | |
| 409 { | |
| 410 if (*decided == not && | |
| 411 strcmp (_NL_CURRENT (LC_TIME, D_T_FMT), HERE_D_T_FMT)) | |
| 412 *decided = loc; | |
| 413 want_xday = 1; | |
| 414 break; | |
| 415 } | |
| 416 *decided = raw; | |
| 417 } | |
| 418 #endif | |
| 419 if (!recursive (HERE_D_T_FMT)) | |
| 420 return NULL; | |
| 421 want_xday = 1; | |
| 422 break; | |
| 423 case 'C': | |
| 424 /* Match century number. */ | |
| 425 get_number (0, 99, 2); | |
| 426 century = val; | |
| 427 want_xday = 1; | |
| 428 break; | |
| 429 case 'd': | |
| 430 case 'e': | |
| 431 /* Match day of month. */ | |
| 432 get_number (1, 31, 2); | |
| 433 tm->tm_mday = val; | |
| 434 have_mday = 1; | |
| 435 want_xday = 1; | |
| 436 break; | |
| 437 case 'F': | |
| 438 if (!recursive ("%Y-%m-%d")) | |
| 439 return NULL; | |
| 440 want_xday = 1; | |
| 441 break; | |
| 442 case 'x': | |
| 443 #ifdef _NL_CURRENT | |
| 444 if (*decided != raw) | |
| 445 { | |
| 446 if (!recursive (_NL_CURRENT (LC_TIME, D_FMT))) | |
| 447 { | |
| 448 if (*decided == loc) | |
| 449 return NULL; | |
| 450 } | |
| 451 else | |
| 452 { | |
| 453 if (decided == not | |
| 454 && strcmp (_NL_CURRENT (LC_TIME, D_FMT), HERE_D_FMT)) | |
| 455 *decided = loc; | |
| 456 want_xday = 1; | |
| 457 break; | |
| 458 } | |
| 459 *decided = raw; | |
| 460 } | |
| 461 #endif | |
| 462 /* Fall through. */ | |
| 463 case 'D': | |
| 464 /* Match standard day format. */ | |
| 465 if (!recursive (HERE_D_FMT)) | |
| 466 return NULL; | |
| 467 want_xday = 1; | |
| 468 break; | |
| 469 case 'k': | |
| 470 case 'H': | |
| 471 /* Match hour in 24-hour clock. */ | |
| 472 get_number (0, 23, 2); | |
| 473 tm->tm_hour = val; | |
| 474 have_I = 0; | |
| 475 break; | |
| 476 case 'I': | |
| 477 /* Match hour in 12-hour clock. */ | |
| 478 get_number (1, 12, 2); | |
| 479 tm->tm_hour = val % 12; | |
| 480 have_I = 1; | |
| 481 break; | |
| 482 case 'j': | |
| 483 /* Match day number of year. */ | |
| 484 get_number (1, 366, 3); | |
| 485 tm->tm_yday = val - 1; | |
| 486 have_yday = 1; | |
| 487 break; | |
| 488 case 'm': | |
| 489 /* Match number of month. */ | |
| 490 get_number (1, 12, 2); | |
| 491 tm->tm_mon = val - 1; | |
| 492 have_mon = 1; | |
| 493 want_xday = 1; | |
| 494 break; | |
| 495 case 'M': | |
| 496 /* Match minute. */ | |
| 497 get_number (0, 59, 2); | |
| 498 tm->tm_min = val; | |
| 499 break; | |
| 500 case 'n': | |
| 501 case 't': | |
| 502 /* Match any white space. */ | |
| 503 while (isspace (*rp)) | |
| 504 ++rp; | |
| 505 break; | |
| 506 case 'p': | |
| 507 /* Match locale's equivalent of AM/PM. */ | |
| 508 #ifdef _NL_CURRENT | |
| 509 if (*decided != raw) | |
| 510 { | |
| 511 if (match_string (_NL_CURRENT (LC_TIME, AM_STR), rp)) | |
| 512 { | |
| 513 if (strcmp (_NL_CURRENT (LC_TIME, AM_STR), HERE_AM_STR)) | |
| 514 *decided = loc; | |
| 515 break; | |
| 516 } | |
| 517 if (match_string (_NL_CURRENT (LC_TIME, PM_STR), rp)) | |
| 518 { | |
| 519 if (strcmp (_NL_CURRENT (LC_TIME, PM_STR), HERE_PM_STR)) | |
| 520 *decided = loc; | |
| 521 is_pm = 1; | |
| 522 break; | |
| 523 } | |
| 524 *decided = raw; | |
| 525 } | |
| 526 #endif | |
| 527 if (!match_string (HERE_AM_STR, rp)) | |
| 528 if (match_string (HERE_PM_STR, rp)) | |
| 529 is_pm = 1; | |
| 530 else | |
| 531 return NULL; | |
| 532 break; | |
| 533 case 'r': | |
| 534 #ifdef _NL_CURRENT | |
| 535 if (*decided != raw) | |
| 536 { | |
| 537 if (!recursive (_NL_CURRENT (LC_TIME, T_FMT_AMPM))) | |
| 538 { | |
| 539 if (*decided == loc) | |
| 540 return NULL; | |
| 541 } | |
| 542 else | |
| 543 { | |
| 544 if (*decided == not && | |
| 545 strcmp (_NL_CURRENT (LC_TIME, T_FMT_AMPM), | |
| 546 HERE_T_FMT_AMPM)) | |
| 547 *decided = loc; | |
| 548 break; | |
| 549 } | |
| 550 *decided = raw; | |
| 551 } | |
| 552 #endif | |
| 553 if (!recursive (HERE_T_FMT_AMPM)) | |
| 554 return NULL; | |
| 555 break; | |
| 556 case 'R': | |
| 557 if (!recursive ("%H:%M")) | |
| 558 return NULL; | |
| 559 break; | |
| 560 case 's': | |
| 561 { | |
| 562 /* The number of seconds may be very high so we cannot use | |
| 563 the `get_number' macro. Instead read the number | |
| 564 character for character and construct the result while | |
| 565 doing this. */ | |
| 566 time_t secs = 0; | |
| 567 if (*rp < '0' || *rp > '9') | |
| 568 /* We need at least one digit. */ | |
| 569 return NULL; | |
| 570 | |
| 571 do | |
| 572 { | |
| 573 secs *= 10; | |
| 574 secs += *rp++ - '0'; | |
| 575 } | |
| 576 while (*rp >= '0' && *rp <= '9'); | |
| 577 | |
| 578 if (localtime_r (&secs, tm) == NULL) | |
| 579 /* Error in function. */ | |
| 580 return NULL; | |
| 581 } | |
| 582 break; | |
| 583 case 'S': | |
| 584 get_number (0, 61, 2); | |
| 585 tm->tm_sec = val; | |
| 586 break; | |
| 587 case 'X': | |
| 588 #ifdef _NL_CURRENT | |
| 589 if (*decided != raw) | |
| 590 { | |
| 591 if (!recursive (_NL_CURRENT (LC_TIME, T_FMT))) | |
| 592 { | |
| 593 if (*decided == loc) | |
| 594 return NULL; | |
| 595 } | |
| 596 else | |
| 597 { | |
| 598 if (strcmp (_NL_CURRENT (LC_TIME, T_FMT), HERE_T_FMT)) | |
| 599 *decided = loc; | |
| 600 break; | |
| 601 } | |
| 602 *decided = raw; | |
| 603 } | |
| 604 #endif | |
| 605 /* Fall through. */ | |
| 606 case 'T': | |
| 607 if (!recursive (HERE_T_FMT)) | |
| 608 return NULL; | |
| 609 break; | |
| 610 case 'u': | |
| 611 get_number (1, 7, 1); | |
| 612 tm->tm_wday = val % 7; | |
| 613 have_wday = 1; | |
| 614 break; | |
| 615 case 'g': | |
| 616 get_number (0, 99, 2); | |
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617 /* FIXME: This cannot determine any field in TM. */ |
| 3465 | 618 break; |
| 619 case 'G': | |
| 620 if (*rp < '0' || *rp > '9') | |
| 621 return NULL; | |
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changeset
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622 /* FIXME: Ignore the number since we would need some more |
| 3465 | 623 information to compute a real date. */ |
| 624 do | |
| 625 ++rp; | |
| 626 while (*rp >= '0' && *rp <= '9'); | |
| 627 break; | |
| 628 case 'U': | |
| 629 case 'V': | |
| 630 case 'W': | |
| 631 get_number (0, 53, 2); | |
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diff
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632 /* FIXME: This cannot determine any field in TM without some |
| 3465 | 633 information. */ |
| 634 break; | |
| 635 case 'w': | |
| 636 /* Match number of weekday. */ | |
| 637 get_number (0, 6, 1); | |
| 638 tm->tm_wday = val; | |
| 639 have_wday = 1; | |
| 640 break; | |
| 641 case 'y': | |
| 642 /* Match year within century. */ | |
| 643 get_number (0, 99, 2); | |
| 644 /* The "Year 2000: The Millennium Rollover" paper suggests that | |
| 645 values in the range 69-99 refer to the twentieth century. */ | |
| 646 tm->tm_year = val >= 69 ? val : val + 100; | |
| 647 /* Indicate that we want to use the century, if specified. */ | |
| 648 want_century = 1; | |
| 649 want_xday = 1; | |
| 650 break; | |
| 651 case 'Y': | |
| 652 /* Match year including century number. */ | |
| 653 get_number (0, 9999, 4); | |
| 654 tm->tm_year = val - 1900; | |
| 655 want_century = 0; | |
| 656 want_xday = 1; | |
| 657 break; | |
| 658 case 'Z': | |
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diff
changeset
|
659 /* FIXME: How to handle this? */ |
| 3465 | 660 break; |
| 661 case 'E': | |
| 662 #ifdef _NL_CURRENT | |
| 663 switch (*fmt++) | |
| 664 { | |
| 665 case 'c': | |
| 666 /* Match locale's alternate date and time format. */ | |
| 667 if (*decided != raw) | |
| 668 { | |
| 669 const char *fmt = _NL_CURRENT (LC_TIME, ERA_D_T_FMT); | |
| 670 | |
| 671 if (*fmt == '\0') | |
| 672 fmt = _NL_CURRENT (LC_TIME, D_T_FMT); | |
| 673 | |
| 674 if (!recursive (fmt)) | |
| 675 { | |
| 676 if (*decided == loc) | |
| 677 return NULL; | |
| 678 } | |
| 679 else | |
| 680 { | |
| 681 if (strcmp (fmt, HERE_D_T_FMT)) | |
| 682 *decided = loc; | |
| 683 want_xday = 1; | |
| 684 break; | |
| 685 } | |
| 686 *decided = raw; | |
| 687 } | |
| 688 /* The C locale has no era information, so use the | |
| 689 normal representation. */ | |
| 690 if (!recursive (HERE_D_T_FMT)) | |
| 691 return NULL; | |
| 692 want_xday = 1; | |
| 693 break; | |
| 694 case 'C': | |
| 695 case 'y': | |
| 696 case 'Y': | |
| 697 /* Match name of base year in locale's alternate | |
| 698 representation. */ | |
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parents:
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diff
changeset
|
699 /* FIXME: This is currently not implemented. It should |
| 3465 | 700 use the value _NL_CURRENT (LC_TIME, ERA). */ |
| 701 break; | |
| 702 case 'x': | |
| 703 if (*decided != raw) | |
| 704 { | |
| 705 const char *fmt = _NL_CURRENT (LC_TIME, ERA_D_FMT); | |
| 706 | |
| 707 if (*fmt == '\0') | |
| 708 fmt = _NL_CURRENT (LC_TIME, D_FMT); | |
| 709 | |
| 710 if (!recursive (fmt)) | |
| 711 { | |
| 712 if (*decided == loc) | |
| 713 return NULL; | |
| 714 } | |
| 715 else | |
| 716 { | |
| 717 if (strcmp (fmt, HERE_D_FMT)) | |
| 718 *decided = loc; | |
| 719 break; | |
| 720 } | |
| 721 *decided = raw; | |
| 722 } | |
| 723 if (!recursive (HERE_D_FMT)) | |
| 724 return NULL; | |
| 725 break; | |
| 726 case 'X': | |
| 727 if (*decided != raw) | |
| 728 { | |
| 729 const char *fmt = _NL_CURRENT (LC_TIME, ERA_T_FMT); | |
| 730 | |
| 731 if (*fmt == '\0') | |
| 732 fmt = _NL_CURRENT (LC_TIME, T_FMT); | |
| 733 | |
| 734 if (!recursive (fmt)) | |
| 735 { | |
| 736 if (*decided == loc) | |
| 737 return NULL; | |
| 738 } | |
| 739 else | |
| 740 { | |
| 741 if (strcmp (fmt, HERE_T_FMT)) | |
| 742 *decided = loc; | |
| 743 break; | |
| 744 } | |
| 745 *decided = raw; | |
| 746 } | |
| 747 if (!recursive (HERE_T_FMT)) | |
| 748 return NULL; | |
| 749 break; | |
| 750 default: | |
| 751 return NULL; | |
| 752 } | |
| 753 break; | |
| 754 #else | |
| 755 /* We have no information about the era format. Just use | |
| 756 the normal format. */ | |
| 757 if (*fmt != 'c' && *fmt != 'C' && *fmt != 'y' && *fmt != 'Y' | |
| 758 && *fmt != 'x' && *fmt != 'X') | |
| 759 /* This is an illegal format. */ | |
| 760 return NULL; | |
| 761 | |
| 762 goto start_over; | |
| 763 #endif | |
| 764 case 'O': | |
| 765 switch (*fmt++) | |
| 766 { | |
| 767 case 'd': | |
| 768 case 'e': | |
| 769 /* Match day of month using alternate numeric symbols. */ | |
| 770 get_alt_number (1, 31, 2); | |
| 771 tm->tm_mday = val; | |
| 772 have_mday = 1; | |
| 773 want_xday = 1; | |
| 774 break; | |
| 775 case 'H': | |
| 776 /* Match hour in 24-hour clock using alternate numeric | |
| 777 symbols. */ | |
| 778 get_alt_number (0, 23, 2); | |
| 779 tm->tm_hour = val; | |
| 780 have_I = 0; | |
| 781 break; | |
| 782 case 'I': | |
| 783 /* Match hour in 12-hour clock using alternate numeric | |
| 784 symbols. */ | |
| 785 get_alt_number (1, 12, 2); | |
| 786 tm->tm_hour = val - 1; | |
| 787 have_I = 1; | |
| 788 break; | |
| 789 case 'm': | |
| 790 /* Match month using alternate numeric symbols. */ | |
| 791 get_alt_number (1, 12, 2); | |
| 792 tm->tm_mon = val - 1; | |
| 793 have_mon = 1; | |
| 794 want_xday = 1; | |
| 795 break; | |
| 796 case 'M': | |
| 797 /* Match minutes using alternate numeric symbols. */ | |
| 798 get_alt_number (0, 59, 2); | |
| 799 tm->tm_min = val; | |
| 800 break; | |
| 801 case 'S': | |
| 802 /* Match seconds using alternate numeric symbols. */ | |
| 803 get_alt_number (0, 61, 2); | |
| 804 tm->tm_sec = val; | |
| 805 break; | |
| 806 case 'U': | |
| 807 case 'V': | |
| 808 case 'W': | |
| 809 get_alt_number (0, 53, 2); | |
|
8202
cf59d542f33e
replace all TODOs and XXXs with FIXMEs
Jaroslav Hajek <highegg@gmail.com>
parents:
7058
diff
changeset
|
810 /* FIXME: This cannot determine any field in TM without |
| 3465 | 811 further information. */ |
| 812 break; | |
| 813 case 'w': | |
| 814 /* Match number of weekday using alternate numeric symbols. */ | |
| 815 get_alt_number (0, 6, 1); | |
| 816 tm->tm_wday = val; | |
| 817 have_wday = 1; | |
| 818 break; | |
| 819 case 'y': | |
| 820 /* Match year within century using alternate numeric symbols. */ | |
| 821 get_alt_number (0, 99, 2); | |
| 822 tm->tm_year = val >= 69 ? val : val + 100; | |
| 823 want_xday = 1; | |
| 824 break; | |
| 825 default: | |
| 826 return NULL; | |
| 827 } | |
| 828 break; | |
| 829 default: | |
| 830 return NULL; | |
| 831 } | |
| 832 } | |
| 833 | |
| 834 if (have_I && is_pm) | |
| 835 tm->tm_hour += 12; | |
| 836 | |
| 837 if (want_century && century != -1) | |
| 838 tm->tm_year = tm->tm_year % 100 + (century - 19) * 100; | |
| 839 | |
| 840 if (want_xday && !have_wday) { | |
| 841 if ( !(have_mon && have_mday) && have_yday) { | |
| 842 /* we don't have tm_mon and/or tm_mday, compute them */ | |
| 843 int t_mon = 0; | |
| 844 while (__mon_yday[__isleap(1900 + tm->tm_year)][t_mon] <= tm->tm_yday) | |
| 845 t_mon++; | |
| 846 if (!have_mon) | |
| 847 tm->tm_mon = t_mon - 1; | |
| 848 if (!have_mday) | |
| 849 tm->tm_mday = tm->tm_yday - __mon_yday[__isleap(1900 + tm->tm_year)][t_mon - 1] + 1; | |
| 850 } | |
| 851 day_of_the_week (tm); | |
| 852 } | |
| 853 if (want_xday && !have_yday) | |
| 854 day_of_the_year (tm); | |
| 855 | |
| 856 return (char *) rp; | |
| 857 } | |
| 858 | |
| 859 | |
| 860 char * | |
| 861 strptime (buf, format, tm) | |
| 862 const char *buf; | |
| 863 const char *format; | |
| 864 struct tm *tm; | |
| 865 { | |
| 866 enum locale_status decided; | |
| 867 #ifdef _NL_CURRENT | |
| 868 decided = not; | |
| 869 #else | |
| 870 decided = raw; | |
| 871 #endif | |
| 872 return strptime_internal (buf, format, tm, &decided); | |
| 873 } | |
| 3750 | 874 |
| 875 #endif |