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dff8da6b | 1 | /* Copyright (C) 2002-2024 Free Software Foundation, Inc. |
60f20c19 RM |
2 | This file is part of the GNU C Library. |
3 | ||
4 | The GNU C Library is free software; you can redistribute it and/or | |
5 | modify it under the terms of the GNU Lesser General Public | |
6 | License as published by the Free Software Foundation; either | |
7 | version 2.1 of the License, or (at your option) any later version. | |
8 | ||
9 | The GNU C Library is distributed in the hope that it will be useful, | |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
12 | Lesser General Public License for more details. | |
13 | ||
14 | You should have received a copy of the GNU Lesser General Public | |
59ba27a6 | 15 | License along with the GNU C Library; if not, see |
5a82c748 | 16 | <https://www.gnu.org/licenses/>. */ |
60f20c19 | 17 | |
ccadf7b5 UD |
18 | #ifdef HAVE_CONFIG_H |
19 | # include <config.h> | |
20 | #endif | |
60f20c19 | 21 | |
1750bc8d | 22 | #include <assert.h> |
ccadf7b5 UD |
23 | #include <ctype.h> |
24 | #include <langinfo.h> | |
25 | #include <limits.h> | |
26 | #include <string.h> | |
27 | #include <time.h> | |
f2d4c706 | 28 | #include <stdbool.h> |
ccadf7b5 UD |
29 | |
30 | #ifdef _LIBC | |
180e0e4b | 31 | # define HAVE_LOCALTIME_R 0 |
ccadf7b5 | 32 | # include "../locale/localeinfo.h" |
ccadf7b5 | 33 | |
41349f6f AS |
34 | # define time_t __time64_t |
35 | # define __localtime_r(t, tp) __localtime64_r (t, tp) | |
36 | #endif | |
ccadf7b5 | 37 | |
ccadf7b5 UD |
38 | #if ! HAVE_LOCALTIME_R && ! defined localtime_r |
39 | # ifdef _LIBC | |
40 | # define localtime_r __localtime_r | |
41 | # else | |
42 | /* Approximate localtime_r as best we can in its absence. */ | |
43 | # define localtime_r my_localtime_r | |
cc9f65ce | 44 | static struct tm *localtime_r (const time_t *, struct tm *); |
ccadf7b5 | 45 | static struct tm * |
9dd346ff | 46 | localtime_r (const time_t *t, struct tm *tp) |
ccadf7b5 UD |
47 | { |
48 | struct tm *l = localtime (t); | |
49 | if (! l) | |
50 | return 0; | |
51 | *tp = *l; | |
52 | return tp; | |
53 | } | |
54 | # endif /* ! _LIBC */ | |
55 | #endif /* ! HAVE_LOCALTIME_R && ! defined (localtime_r) */ | |
56 | ||
57 | ||
58 | #define match_char(ch1, ch2) if (ch1 != ch2) return NULL | |
59 | #if defined __GNUC__ && __GNUC__ >= 2 | |
60 | # define match_string(cs1, s2) \ | |
61 | ({ size_t len = strlen (cs1); \ | |
62 | int result = __strncasecmp_l ((cs1), (s2), len, locale) == 0; \ | |
63 | if (result) (s2) += len; \ | |
64 | result; }) | |
65 | #else | |
66 | /* Oh come on. Get a reasonable compiler. */ | |
67 | # define match_string(cs1, s2) \ | |
68 | (strncasecmp ((cs1), (s2), strlen (cs1)) ? 0 : ((s2) += strlen (cs1), 1)) | |
69 | #endif | |
70 | /* We intentionally do not use isdigit() for testing because this will | |
71 | lead to problems with the wide character version. */ | |
72 | #define get_number(from, to, n) \ | |
73 | do { \ | |
74 | int __n = n; \ | |
75 | val = 0; \ | |
ff491d14 | 76 | while (ISSPACE (*rp)) \ |
ccadf7b5 UD |
77 | ++rp; \ |
78 | if (*rp < '0' || *rp > '9') \ | |
79 | return NULL; \ | |
80 | do { \ | |
81 | val *= 10; \ | |
82 | val += *rp++ - '0'; \ | |
83 | } while (--__n > 0 && val * 10 <= to && *rp >= '0' && *rp <= '9'); \ | |
84 | if (val < from || val > to) \ | |
85 | return NULL; \ | |
86 | } while (0) | |
87 | #ifdef _NL_CURRENT | |
88 | # define get_alt_number(from, to, n) \ | |
89 | ({ \ | |
90 | __label__ do_normal; \ | |
91 | \ | |
fa69dc9c | 92 | if (s.decided != raw) \ |
ccadf7b5 UD |
93 | { \ |
94 | val = _nl_parse_alt_digit (&rp HELPER_LOCALE_ARG); \ | |
fa69dc9c | 95 | if (val == -1 && s.decided != loc) \ |
ccadf7b5 | 96 | { \ |
fa69dc9c | 97 | s.decided = loc; \ |
ccadf7b5 UD |
98 | goto do_normal; \ |
99 | } \ | |
100 | if (val < from || val > to) \ | |
101 | return NULL; \ | |
102 | } \ | |
103 | else \ | |
104 | { \ | |
105 | do_normal: \ | |
106 | get_number (from, to, n); \ | |
107 | } \ | |
108 | 0; \ | |
109 | }) | |
110 | #else | |
111 | # define get_alt_number(from, to, n) \ | |
112 | /* We don't have the alternate representation. */ \ | |
113 | get_number(from, to, n) | |
114 | #endif | |
115 | #define recursive(new_fmt) \ | |
116 | (*(new_fmt) != '\0' \ | |
fa69dc9c | 117 | && (rp = __strptime_internal (rp, (new_fmt), tm, &s LOCALE_ARG)) != NULL) |
ccadf7b5 UD |
118 | |
119 | ||
120 | #ifdef _LIBC | |
121 | /* This is defined in locale/C-time.c in the GNU libc. */ | |
f095bb72 | 122 | extern const struct __locale_data _nl_C_LC_TIME attribute_hidden; |
ccadf7b5 UD |
123 | |
124 | # define weekday_name (&_nl_C_LC_TIME.values[_NL_ITEM_INDEX (DAY_1)].string) | |
125 | # define ab_weekday_name \ | |
126 | (&_nl_C_LC_TIME.values[_NL_ITEM_INDEX (ABDAY_1)].string) | |
127 | # define month_name (&_nl_C_LC_TIME.values[_NL_ITEM_INDEX (MON_1)].string) | |
128 | # define ab_month_name (&_nl_C_LC_TIME.values[_NL_ITEM_INDEX (ABMON_1)].string) | |
95cb863a RL |
129 | # define alt_month_name \ |
130 | (&_nl_C_LC_TIME.values[_NL_ITEM_INDEX (ALTMON_1)].string) | |
761a585c RL |
131 | # define ab_alt_month_name \ |
132 | (&_nl_C_LC_TIME.values[_NL_ITEM_INDEX (_NL_ABALTMON_1)].string) | |
ccadf7b5 UD |
133 | # define HERE_D_T_FMT (_nl_C_LC_TIME.values[_NL_ITEM_INDEX (D_T_FMT)].string) |
134 | # define HERE_D_FMT (_nl_C_LC_TIME.values[_NL_ITEM_INDEX (D_FMT)].string) | |
135 | # define HERE_AM_STR (_nl_C_LC_TIME.values[_NL_ITEM_INDEX (AM_STR)].string) | |
136 | # define HERE_PM_STR (_nl_C_LC_TIME.values[_NL_ITEM_INDEX (PM_STR)].string) | |
137 | # define HERE_T_FMT_AMPM \ | |
138 | (_nl_C_LC_TIME.values[_NL_ITEM_INDEX (T_FMT_AMPM)].string) | |
139 | # define HERE_T_FMT (_nl_C_LC_TIME.values[_NL_ITEM_INDEX (T_FMT)].string) | |
140 | ||
141 | # define strncasecmp(s1, s2, n) __strncasecmp (s1, s2, n) | |
142 | #else | |
143 | static char const weekday_name[][10] = | |
144 | { | |
145 | "Sunday", "Monday", "Tuesday", "Wednesday", | |
146 | "Thursday", "Friday", "Saturday" | |
147 | }; | |
148 | static char const ab_weekday_name[][4] = | |
149 | { | |
150 | "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" | |
151 | }; | |
152 | static char const month_name[][10] = | |
153 | { | |
154 | "January", "February", "March", "April", "May", "June", | |
155 | "July", "August", "September", "October", "November", "December" | |
156 | }; | |
157 | static char const ab_month_name[][4] = | |
158 | { | |
159 | "Jan", "Feb", "Mar", "Apr", "May", "Jun", | |
160 | "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" | |
161 | }; | |
162 | # define HERE_D_T_FMT "%a %b %e %H:%M:%S %Y" | |
163 | # define HERE_D_FMT "%m/%d/%y" | |
164 | # define HERE_AM_STR "AM" | |
165 | # define HERE_PM_STR "PM" | |
166 | # define HERE_T_FMT_AMPM "%I:%M:%S %p" | |
167 | # define HERE_T_FMT "%H:%M:%S" | |
168 | ||
169 | static const unsigned short int __mon_yday[2][13] = | |
170 | { | |
171 | /* Normal years. */ | |
172 | { 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365 }, | |
173 | /* Leap years. */ | |
174 | { 0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335, 366 } | |
175 | }; | |
176 | #endif | |
177 | ||
178 | #if defined _LIBC | |
179 | /* We use this code also for the extended locale handling where the | |
180 | function gets as an additional argument the locale which has to be | |
181 | used. To access the values we have to redefine the _NL_CURRENT | |
182 | macro. */ | |
183 | # define strptime __strptime_l | |
184 | # undef _NL_CURRENT | |
185 | # define _NL_CURRENT(category, item) \ | |
186 | (current->values[_NL_ITEM_INDEX (item)].string) | |
187 | # undef _NL_CURRENT_WORD | |
188 | # define _NL_CURRENT_WORD(category, item) \ | |
189 | (current->values[_NL_ITEM_INDEX (item)].word) | |
af85385f | 190 | # define LOCALE_PARAM , locale_t locale |
ccadf7b5 | 191 | # define LOCALE_ARG , locale |
ccadf7b5 UD |
192 | # define HELPER_LOCALE_ARG , current |
193 | # define ISSPACE(Ch) __isspace_l (Ch, locale) | |
194 | #else | |
195 | # define LOCALE_PARAM | |
196 | # define LOCALE_ARG | |
ccadf7b5 UD |
197 | # define HELPER_LOCALE_ARG |
198 | # define ISSPACE(Ch) isspace (Ch) | |
199 | #endif | |
200 | ||
201 | ||
202 | ||
203 | ||
204 | #ifndef __isleap | |
205 | /* Nonzero if YEAR is a leap year (every 4 years, | |
206 | except every 100th isn't, and every 400th is). */ | |
207 | # define __isleap(year) \ | |
208 | ((year) % 4 == 0 && ((year) % 100 != 0 || (year) % 400 == 0)) | |
209 | #endif | |
210 | ||
211 | /* Compute the day of the week. */ | |
212 | static void | |
213 | day_of_the_week (struct tm *tm) | |
214 | { | |
215 | /* We know that January 1st 1970 was a Thursday (= 4). Compute the | |
ded5b9b7 | 216 | difference between this data in the one on TM and so determine |
ccadf7b5 UD |
217 | the weekday. */ |
218 | int corr_year = 1900 + tm->tm_year - (tm->tm_mon < 2); | |
219 | int wday = (-473 | |
220 | + (365 * (tm->tm_year - 70)) | |
221 | + (corr_year / 4) | |
222 | - ((corr_year / 4) / 25) + ((corr_year / 4) % 25 < 0) | |
223 | + (((corr_year / 4) / 25) / 4) | |
224 | + __mon_yday[0][tm->tm_mon] | |
225 | + tm->tm_mday - 1); | |
226 | tm->tm_wday = ((wday % 7) + 7) % 7; | |
227 | } | |
228 | ||
229 | /* Compute the day of the year. */ | |
230 | static void | |
231 | day_of_the_year (struct tm *tm) | |
232 | { | |
233 | tm->tm_yday = (__mon_yday[__isleap (1900 + tm->tm_year)][tm->tm_mon] | |
234 | + (tm->tm_mday - 1)); | |
235 | } | |
236 | ||
237 | ||
238 | #ifdef _LIBC | |
239 | char * | |
ccadf7b5 UD |
240 | #else |
241 | static char * | |
242 | #endif | |
80d9be81 JM |
243 | __strptime_internal (const char *rp, const char *fmt, struct tm *tmp, |
244 | void *statep LOCALE_PARAM) | |
ccadf7b5 UD |
245 | { |
246 | #ifdef _LIBC | |
f095bb72 | 247 | struct __locale_data *const current = locale->__locales[LC_TIME]; |
ccadf7b5 UD |
248 | #endif |
249 | ||
250 | const char *rp_backup; | |
f98c2d06 | 251 | const char *rp_longest; |
ccadf7b5 | 252 | int cnt; |
f98c2d06 | 253 | int cnt_longest; |
ccadf7b5 | 254 | size_t val; |
ccadf7b5 | 255 | size_t num_eras; |
fa69dc9c UD |
256 | struct era_entry *era = NULL; |
257 | enum ptime_locale_status { not, loc, raw } decided_longest; | |
258 | struct __strptime_state | |
259 | { | |
260 | unsigned int have_I : 1; | |
261 | unsigned int have_wday : 1; | |
262 | unsigned int have_yday : 1; | |
263 | unsigned int have_mon : 1; | |
264 | unsigned int have_mday : 1; | |
265 | unsigned int have_uweek : 1; | |
266 | unsigned int have_wweek : 1; | |
267 | unsigned int is_pm : 1; | |
268 | unsigned int want_century : 1; | |
269 | unsigned int want_era : 1; | |
270 | unsigned int want_xday : 1; | |
271 | enum ptime_locale_status decided : 2; | |
272 | signed char week_no; | |
273 | signed char century; | |
274 | int era_cnt; | |
275 | } s; | |
276 | struct tm tmb; | |
277 | struct tm *tm; | |
278 | ||
279 | if (statep == NULL) | |
280 | { | |
281 | memset (&s, 0, sizeof (s)); | |
282 | s.century = -1; | |
283 | s.era_cnt = -1; | |
284 | #ifdef _NL_CURRENT | |
285 | s.decided = not; | |
286 | #else | |
287 | s.decided = raw; | |
288 | #endif | |
289 | tm = tmp; | |
290 | } | |
291 | else | |
292 | { | |
293 | s = *(struct __strptime_state *) statep; | |
294 | tmb = *tmp; | |
295 | tm = &tmb; | |
296 | } | |
ccadf7b5 UD |
297 | |
298 | while (*fmt != '\0') | |
299 | { | |
300 | /* A white space in the format string matches 0 more or white | |
301 | space in the input string. */ | |
302 | if (ISSPACE (*fmt)) | |
303 | { | |
304 | while (ISSPACE (*rp)) | |
305 | ++rp; | |
306 | ++fmt; | |
307 | continue; | |
308 | } | |
309 | ||
310 | /* Any character but `%' must be matched by the same character | |
a1b02ae7 | 311 | in the input string. */ |
ccadf7b5 UD |
312 | if (*fmt != '%') |
313 | { | |
314 | match_char (*fmt++, *rp++); | |
315 | continue; | |
316 | } | |
317 | ||
318 | ++fmt; | |
19e3372b OB |
319 | /* We discard strftime modifiers. */ |
320 | while (*fmt == '-' || *fmt == '_' || *fmt == '0' | |
321 | || *fmt == '^' || *fmt == '#') | |
322 | ++fmt; | |
323 | ||
324 | /* And field width. */ | |
325 | while (*fmt >= '0' && *fmt <= '9') | |
326 | ++fmt; | |
ae1ad762 | 327 | |
95cb863a RL |
328 | /* In some cases, modifiers are handled by adjusting state and |
329 | then restarting the switch statement below. */ | |
ccadf7b5 | 330 | start_over: |
ccadf7b5 UD |
331 | |
332 | /* Make back up of current processing pointer. */ | |
333 | rp_backup = rp; | |
334 | ||
335 | switch (*fmt++) | |
336 | { | |
337 | case '%': | |
338 | /* Match the `%' character itself. */ | |
339 | match_char ('%', *rp++); | |
340 | break; | |
341 | case 'a': | |
342 | case 'A': | |
343 | /* Match day of week. */ | |
f98c2d06 | 344 | rp_longest = NULL; |
fa69dc9c | 345 | decided_longest = s.decided; |
f98c2d06 | 346 | cnt_longest = -1; |
ccadf7b5 UD |
347 | for (cnt = 0; cnt < 7; ++cnt) |
348 | { | |
f98c2d06 | 349 | const char *trp; |
ccadf7b5 | 350 | #ifdef _NL_CURRENT |
fa69dc9c | 351 | if (s.decided !=raw) |
ccadf7b5 | 352 | { |
f98c2d06 UD |
353 | trp = rp; |
354 | if (match_string (_NL_CURRENT (LC_TIME, DAY_1 + cnt), trp) | |
355 | && trp > rp_longest) | |
ccadf7b5 | 356 | { |
f98c2d06 UD |
357 | rp_longest = trp; |
358 | cnt_longest = cnt; | |
fa69dc9c | 359 | if (s.decided == not |
ccadf7b5 UD |
360 | && strcmp (_NL_CURRENT (LC_TIME, DAY_1 + cnt), |
361 | weekday_name[cnt])) | |
f98c2d06 | 362 | decided_longest = loc; |
ccadf7b5 | 363 | } |
f98c2d06 UD |
364 | trp = rp; |
365 | if (match_string (_NL_CURRENT (LC_TIME, ABDAY_1 + cnt), trp) | |
366 | && trp > rp_longest) | |
ccadf7b5 | 367 | { |
f98c2d06 UD |
368 | rp_longest = trp; |
369 | cnt_longest = cnt; | |
fa69dc9c | 370 | if (s.decided == not |
ccadf7b5 UD |
371 | && strcmp (_NL_CURRENT (LC_TIME, ABDAY_1 + cnt), |
372 | ab_weekday_name[cnt])) | |
f98c2d06 | 373 | decided_longest = loc; |
ccadf7b5 UD |
374 | } |
375 | } | |
376 | #endif | |
fa69dc9c | 377 | if (s.decided != loc |
f98c2d06 UD |
378 | && (((trp = rp, match_string (weekday_name[cnt], trp)) |
379 | && trp > rp_longest) | |
380 | || ((trp = rp, match_string (ab_weekday_name[cnt], rp)) | |
381 | && trp > rp_longest))) | |
ccadf7b5 | 382 | { |
f98c2d06 UD |
383 | rp_longest = trp; |
384 | cnt_longest = cnt; | |
385 | decided_longest = raw; | |
ccadf7b5 UD |
386 | } |
387 | } | |
f98c2d06 | 388 | if (rp_longest == NULL) |
ccadf7b5 UD |
389 | /* Does not match a weekday name. */ |
390 | return NULL; | |
f98c2d06 | 391 | rp = rp_longest; |
fa69dc9c | 392 | s.decided = decided_longest; |
f98c2d06 | 393 | tm->tm_wday = cnt_longest; |
fa69dc9c | 394 | s.have_wday = 1; |
ccadf7b5 UD |
395 | break; |
396 | case 'b': | |
397 | case 'B': | |
398 | case 'h': | |
399 | /* Match month name. */ | |
f98c2d06 | 400 | rp_longest = NULL; |
fa69dc9c | 401 | decided_longest = s.decided; |
f98c2d06 | 402 | cnt_longest = -1; |
ccadf7b5 UD |
403 | for (cnt = 0; cnt < 12; ++cnt) |
404 | { | |
f98c2d06 | 405 | const char *trp; |
ccadf7b5 | 406 | #ifdef _NL_CURRENT |
fa69dc9c | 407 | if (s.decided !=raw) |
ccadf7b5 | 408 | { |
f98c2d06 UD |
409 | trp = rp; |
410 | if (match_string (_NL_CURRENT (LC_TIME, MON_1 + cnt), trp) | |
411 | && trp > rp_longest) | |
ccadf7b5 | 412 | { |
f98c2d06 UD |
413 | rp_longest = trp; |
414 | cnt_longest = cnt; | |
fa69dc9c | 415 | if (s.decided == not |
ccadf7b5 UD |
416 | && strcmp (_NL_CURRENT (LC_TIME, MON_1 + cnt), |
417 | month_name[cnt])) | |
f98c2d06 | 418 | decided_longest = loc; |
ccadf7b5 | 419 | } |
f98c2d06 UD |
420 | trp = rp; |
421 | if (match_string (_NL_CURRENT (LC_TIME, ABMON_1 + cnt), trp) | |
422 | && trp > rp_longest) | |
ccadf7b5 | 423 | { |
f98c2d06 UD |
424 | rp_longest = trp; |
425 | cnt_longest = cnt; | |
fa69dc9c | 426 | if (s.decided == not |
ccadf7b5 UD |
427 | && strcmp (_NL_CURRENT (LC_TIME, ABMON_1 + cnt), |
428 | ab_month_name[cnt])) | |
f98c2d06 | 429 | decided_longest = loc; |
ccadf7b5 | 430 | } |
95cb863a RL |
431 | #ifdef _LIBC |
432 | /* Now check the alt month. */ | |
433 | trp = rp; | |
434 | if (match_string (_NL_CURRENT (LC_TIME, ALTMON_1 + cnt), trp) | |
435 | && trp > rp_longest) | |
436 | { | |
437 | rp_longest = trp; | |
438 | cnt_longest = cnt; | |
439 | if (s.decided == not | |
440 | && strcmp (_NL_CURRENT (LC_TIME, ALTMON_1 + cnt), | |
441 | alt_month_name[cnt])) | |
442 | decided_longest = loc; | |
443 | } | |
761a585c RL |
444 | trp = rp; |
445 | if (match_string (_NL_CURRENT (LC_TIME, _NL_ABALTMON_1 + cnt), | |
446 | trp) | |
447 | && trp > rp_longest) | |
448 | { | |
449 | rp_longest = trp; | |
450 | cnt_longest = cnt; | |
451 | if (s.decided == not | |
452 | && strcmp (_NL_CURRENT (LC_TIME, _NL_ABALTMON_1 + cnt), | |
453 | alt_month_name[cnt])) | |
454 | decided_longest = loc; | |
455 | } | |
95cb863a | 456 | #endif |
ccadf7b5 UD |
457 | } |
458 | #endif | |
fa69dc9c | 459 | if (s.decided != loc |
f98c2d06 UD |
460 | && (((trp = rp, match_string (month_name[cnt], trp)) |
461 | && trp > rp_longest) | |
462 | || ((trp = rp, match_string (ab_month_name[cnt], trp)) | |
95cb863a RL |
463 | && trp > rp_longest) |
464 | #ifdef _LIBC | |
465 | || ((trp = rp, match_string (alt_month_name[cnt], trp)) | |
466 | && trp > rp_longest) | |
761a585c RL |
467 | || ((trp = rp, match_string (ab_alt_month_name[cnt], trp)) |
468 | && trp > rp_longest) | |
95cb863a RL |
469 | #endif |
470 | )) | |
ccadf7b5 | 471 | { |
f98c2d06 UD |
472 | rp_longest = trp; |
473 | cnt_longest = cnt; | |
474 | decided_longest = raw; | |
ccadf7b5 UD |
475 | } |
476 | } | |
f98c2d06 | 477 | if (rp_longest == NULL) |
ccadf7b5 UD |
478 | /* Does not match a month name. */ |
479 | return NULL; | |
f98c2d06 | 480 | rp = rp_longest; |
fa69dc9c | 481 | s.decided = decided_longest; |
f98c2d06 | 482 | tm->tm_mon = cnt_longest; |
fa69dc9c UD |
483 | s.have_mon = 1; |
484 | s.want_xday = 1; | |
ccadf7b5 UD |
485 | break; |
486 | case 'c': | |
487 | /* Match locale's date and time format. */ | |
488 | #ifdef _NL_CURRENT | |
fa69dc9c | 489 | if (s.decided != raw) |
ccadf7b5 UD |
490 | { |
491 | if (!recursive (_NL_CURRENT (LC_TIME, D_T_FMT))) | |
492 | { | |
fa69dc9c | 493 | if (s.decided == loc) |
ccadf7b5 UD |
494 | return NULL; |
495 | else | |
496 | rp = rp_backup; | |
497 | } | |
498 | else | |
499 | { | |
34a5a146 JM |
500 | if (s.decided == not |
501 | && strcmp (_NL_CURRENT (LC_TIME, D_T_FMT), HERE_D_T_FMT)) | |
fa69dc9c UD |
502 | s.decided = loc; |
503 | s.want_xday = 1; | |
ccadf7b5 UD |
504 | break; |
505 | } | |
fa69dc9c | 506 | s.decided = raw; |
ccadf7b5 UD |
507 | } |
508 | #endif | |
509 | if (!recursive (HERE_D_T_FMT)) | |
510 | return NULL; | |
fa69dc9c | 511 | s.want_xday = 1; |
ccadf7b5 UD |
512 | break; |
513 | case 'C': | |
514 | /* Match century number. */ | |
515 | match_century: | |
516 | get_number (0, 99, 2); | |
fa69dc9c UD |
517 | s.century = val; |
518 | s.want_xday = 1; | |
ccadf7b5 UD |
519 | break; |
520 | case 'd': | |
521 | case 'e': | |
522 | /* Match day of month. */ | |
523 | get_number (1, 31, 2); | |
524 | tm->tm_mday = val; | |
fa69dc9c UD |
525 | s.have_mday = 1; |
526 | s.want_xday = 1; | |
ccadf7b5 UD |
527 | break; |
528 | case 'F': | |
529 | if (!recursive ("%Y-%m-%d")) | |
530 | return NULL; | |
fa69dc9c | 531 | s.want_xday = 1; |
ccadf7b5 UD |
532 | break; |
533 | case 'x': | |
534 | #ifdef _NL_CURRENT | |
fa69dc9c | 535 | if (s.decided != raw) |
ccadf7b5 UD |
536 | { |
537 | if (!recursive (_NL_CURRENT (LC_TIME, D_FMT))) | |
538 | { | |
fa69dc9c | 539 | if (s.decided == loc) |
ccadf7b5 UD |
540 | return NULL; |
541 | else | |
542 | rp = rp_backup; | |
543 | } | |
544 | else | |
545 | { | |
fa69dc9c | 546 | if (s.decided == not |
ccadf7b5 | 547 | && strcmp (_NL_CURRENT (LC_TIME, D_FMT), HERE_D_FMT)) |
fa69dc9c UD |
548 | s.decided = loc; |
549 | s.want_xday = 1; | |
ccadf7b5 UD |
550 | break; |
551 | } | |
fa69dc9c | 552 | s.decided = raw; |
ccadf7b5 UD |
553 | } |
554 | #endif | |
555 | /* Fall through. */ | |
556 | case 'D': | |
557 | /* Match standard day format. */ | |
558 | if (!recursive (HERE_D_FMT)) | |
559 | return NULL; | |
fa69dc9c | 560 | s.want_xday = 1; |
ccadf7b5 UD |
561 | break; |
562 | case 'k': | |
563 | case 'H': | |
564 | /* Match hour in 24-hour clock. */ | |
565 | get_number (0, 23, 2); | |
566 | tm->tm_hour = val; | |
fa69dc9c | 567 | s.have_I = 0; |
ccadf7b5 UD |
568 | break; |
569 | case 'l': | |
570 | /* Match hour in 12-hour clock. GNU extension. */ | |
571 | case 'I': | |
572 | /* Match hour in 12-hour clock. */ | |
573 | get_number (1, 12, 2); | |
574 | tm->tm_hour = val % 12; | |
fa69dc9c | 575 | s.have_I = 1; |
ccadf7b5 UD |
576 | break; |
577 | case 'j': | |
578 | /* Match day number of year. */ | |
579 | get_number (1, 366, 3); | |
580 | tm->tm_yday = val - 1; | |
fa69dc9c | 581 | s.have_yday = 1; |
ccadf7b5 UD |
582 | break; |
583 | case 'm': | |
584 | /* Match number of month. */ | |
585 | get_number (1, 12, 2); | |
586 | tm->tm_mon = val - 1; | |
fa69dc9c UD |
587 | s.have_mon = 1; |
588 | s.want_xday = 1; | |
ccadf7b5 UD |
589 | break; |
590 | case 'M': | |
591 | /* Match minute. */ | |
592 | get_number (0, 59, 2); | |
593 | tm->tm_min = val; | |
594 | break; | |
595 | case 'n': | |
596 | case 't': | |
597 | /* Match any white space. */ | |
598 | while (ISSPACE (*rp)) | |
599 | ++rp; | |
600 | break; | |
601 | case 'p': | |
602 | /* Match locale's equivalent of AM/PM. */ | |
603 | #ifdef _NL_CURRENT | |
fa69dc9c | 604 | if (s.decided != raw) |
ccadf7b5 UD |
605 | { |
606 | if (match_string (_NL_CURRENT (LC_TIME, AM_STR), rp)) | |
607 | { | |
608 | if (strcmp (_NL_CURRENT (LC_TIME, AM_STR), HERE_AM_STR)) | |
fa69dc9c UD |
609 | s.decided = loc; |
610 | s.is_pm = 0; | |
ccadf7b5 UD |
611 | break; |
612 | } | |
613 | if (match_string (_NL_CURRENT (LC_TIME, PM_STR), rp)) | |
614 | { | |
615 | if (strcmp (_NL_CURRENT (LC_TIME, PM_STR), HERE_PM_STR)) | |
fa69dc9c UD |
616 | s.decided = loc; |
617 | s.is_pm = 1; | |
ccadf7b5 UD |
618 | break; |
619 | } | |
fa69dc9c | 620 | s.decided = raw; |
ccadf7b5 UD |
621 | } |
622 | #endif | |
623 | if (!match_string (HERE_AM_STR, rp)) | |
9fbdeb41 UD |
624 | { |
625 | if (match_string (HERE_PM_STR, rp)) | |
fa69dc9c | 626 | s.is_pm = 1; |
9fbdeb41 UD |
627 | else |
628 | return NULL; | |
9fbdeb41 | 629 | } |
fa69dc9c UD |
630 | else |
631 | s.is_pm = 0; | |
73102f50 | 632 | break; |
ccadf7b5 UD |
633 | case 'r': |
634 | #ifdef _NL_CURRENT | |
fa69dc9c | 635 | if (s.decided != raw) |
ccadf7b5 UD |
636 | { |
637 | if (!recursive (_NL_CURRENT (LC_TIME, T_FMT_AMPM))) | |
638 | { | |
fa69dc9c | 639 | if (s.decided == loc) |
ccadf7b5 UD |
640 | return NULL; |
641 | else | |
642 | rp = rp_backup; | |
643 | } | |
644 | else | |
645 | { | |
34a5a146 JM |
646 | if (s.decided == not |
647 | && strcmp (_NL_CURRENT (LC_TIME, T_FMT_AMPM), | |
648 | HERE_T_FMT_AMPM)) | |
fa69dc9c | 649 | s.decided = loc; |
ccadf7b5 UD |
650 | break; |
651 | } | |
fa69dc9c | 652 | s.decided = raw; |
ccadf7b5 UD |
653 | } |
654 | #endif | |
655 | if (!recursive (HERE_T_FMT_AMPM)) | |
656 | return NULL; | |
657 | break; | |
658 | case 'R': | |
659 | if (!recursive ("%H:%M")) | |
660 | return NULL; | |
661 | break; | |
662 | case 's': | |
663 | { | |
664 | /* The number of seconds may be very high so we cannot use | |
665 | the `get_number' macro. Instead read the number | |
666 | character for character and construct the result while | |
667 | doing this. */ | |
668 | time_t secs = 0; | |
669 | if (*rp < '0' || *rp > '9') | |
670 | /* We need at least one digit. */ | |
671 | return NULL; | |
672 | ||
673 | do | |
674 | { | |
675 | secs *= 10; | |
676 | secs += *rp++ - '0'; | |
677 | } | |
678 | while (*rp >= '0' && *rp <= '9'); | |
679 | ||
680 | if (localtime_r (&secs, tm) == NULL) | |
681 | /* Error in function. */ | |
682 | return NULL; | |
683 | } | |
684 | break; | |
685 | case 'S': | |
686 | get_number (0, 61, 2); | |
687 | tm->tm_sec = val; | |
688 | break; | |
689 | case 'X': | |
690 | #ifdef _NL_CURRENT | |
fa69dc9c | 691 | if (s.decided != raw) |
ccadf7b5 UD |
692 | { |
693 | if (!recursive (_NL_CURRENT (LC_TIME, T_FMT))) | |
694 | { | |
fa69dc9c | 695 | if (s.decided == loc) |
ccadf7b5 UD |
696 | return NULL; |
697 | else | |
698 | rp = rp_backup; | |
699 | } | |
700 | else | |
701 | { | |
702 | if (strcmp (_NL_CURRENT (LC_TIME, T_FMT), HERE_T_FMT)) | |
fa69dc9c | 703 | s.decided = loc; |
ccadf7b5 UD |
704 | break; |
705 | } | |
fa69dc9c | 706 | s.decided = raw; |
ccadf7b5 UD |
707 | } |
708 | #endif | |
709 | /* Fall through. */ | |
710 | case 'T': | |
711 | if (!recursive (HERE_T_FMT)) | |
712 | return NULL; | |
713 | break; | |
714 | case 'u': | |
715 | get_number (1, 7, 1); | |
716 | tm->tm_wday = val % 7; | |
fa69dc9c | 717 | s.have_wday = 1; |
ccadf7b5 UD |
718 | break; |
719 | case 'g': | |
720 | get_number (0, 99, 2); | |
721 | /* XXX This cannot determine any field in TM. */ | |
722 | break; | |
723 | case 'G': | |
724 | if (*rp < '0' || *rp > '9') | |
725 | return NULL; | |
726 | /* XXX Ignore the number since we would need some more | |
727 | information to compute a real date. */ | |
728 | do | |
729 | ++rp; | |
730 | while (*rp >= '0' && *rp <= '9'); | |
731 | break; | |
732 | case 'U': | |
733 | get_number (0, 53, 2); | |
fa69dc9c UD |
734 | s.week_no = val; |
735 | s.have_uweek = 1; | |
ccadf7b5 UD |
736 | break; |
737 | case 'W': | |
738 | get_number (0, 53, 2); | |
fa69dc9c UD |
739 | s.week_no = val; |
740 | s.have_wweek = 1; | |
ccadf7b5 UD |
741 | break; |
742 | case 'V': | |
743 | get_number (0, 53, 2); | |
744 | /* XXX This cannot determine any field in TM without some | |
745 | information. */ | |
746 | break; | |
747 | case 'w': | |
748 | /* Match number of weekday. */ | |
749 | get_number (0, 6, 1); | |
750 | tm->tm_wday = val; | |
fa69dc9c | 751 | s.have_wday = 1; |
ccadf7b5 UD |
752 | break; |
753 | case 'y': | |
754 | match_year_in_century: | |
755 | /* Match year within century. */ | |
756 | get_number (0, 99, 2); | |
757 | /* The "Year 2000: The Millennium Rollover" paper suggests that | |
758 | values in the range 69-99 refer to the twentieth century. */ | |
759 | tm->tm_year = val >= 69 ? val : val + 100; | |
760 | /* Indicate that we want to use the century, if specified. */ | |
fa69dc9c UD |
761 | s.want_century = 1; |
762 | s.want_xday = 1; | |
ccadf7b5 UD |
763 | break; |
764 | case 'Y': | |
765 | /* Match year including century number. */ | |
766 | get_number (0, 9999, 4); | |
767 | tm->tm_year = val - 1900; | |
fa69dc9c UD |
768 | s.want_century = 0; |
769 | s.want_xday = 1; | |
ccadf7b5 UD |
770 | break; |
771 | case 'Z': | |
ddc7e412 OB |
772 | /* Read timezone but perform no conversion. */ |
773 | while (ISSPACE (*rp)) | |
774 | rp++; | |
775 | while (!ISSPACE (*rp) && *rp != '\0') | |
776 | rp++; | |
ccadf7b5 | 777 | break; |
935f3e67 | 778 | case 'z': |
e952e1df VB |
779 | /* We recognize four formats: |
780 | 1. Two digits specify hours. | |
781 | 2. Four digits specify hours and minutes. | |
782 | 3. Two digits, ':', and two digits specify hours and minutes. | |
783 | 4. 'Z' is equivalent to +0000. */ | |
935f3e67 UD |
784 | { |
785 | val = 0; | |
ff491d14 | 786 | while (ISSPACE (*rp)) |
935f3e67 | 787 | ++rp; |
900f33e2 VB |
788 | if (*rp == 'Z') |
789 | { | |
790 | ++rp; | |
791 | tm->tm_gmtoff = 0; | |
792 | break; | |
793 | } | |
935f3e67 UD |
794 | if (*rp != '+' && *rp != '-') |
795 | return NULL; | |
796 | bool neg = *rp++ == '-'; | |
797 | int n = 0; | |
798 | while (n < 4 && *rp >= '0' && *rp <= '9') | |
799 | { | |
800 | val = val * 10 + *rp++ - '0'; | |
801 | ++n; | |
e952e1df VB |
802 | if (*rp == ':' && n == 2 && isdigit (*(rp + 1))) |
803 | ++rp; | |
935f3e67 UD |
804 | } |
805 | if (n == 2) | |
806 | val *= 100; | |
807 | else if (n != 4) | |
808 | /* Only two or four digits recognized. */ | |
809 | return NULL; | |
cccc95f2 JP |
810 | else if (val % 100 >= 60) |
811 | /* Minutes valid range is 0 through 59. */ | |
935f3e67 | 812 | return NULL; |
cccc95f2 | 813 | tm->tm_gmtoff = (val / 100) * 3600 + (val % 100) * 60; |
935f3e67 UD |
814 | if (neg) |
815 | tm->tm_gmtoff = -tm->tm_gmtoff; | |
816 | } | |
817 | break; | |
ccadf7b5 UD |
818 | case 'E': |
819 | #ifdef _NL_CURRENT | |
820 | switch (*fmt++) | |
821 | { | |
822 | case 'c': | |
823 | /* Match locale's alternate date and time format. */ | |
fa69dc9c | 824 | if (s.decided != raw) |
ccadf7b5 UD |
825 | { |
826 | const char *fmt = _NL_CURRENT (LC_TIME, ERA_D_T_FMT); | |
827 | ||
828 | if (*fmt == '\0') | |
829 | fmt = _NL_CURRENT (LC_TIME, D_T_FMT); | |
830 | ||
831 | if (!recursive (fmt)) | |
832 | { | |
fa69dc9c | 833 | if (s.decided == loc) |
ccadf7b5 UD |
834 | return NULL; |
835 | else | |
836 | rp = rp_backup; | |
837 | } | |
838 | else | |
839 | { | |
840 | if (strcmp (fmt, HERE_D_T_FMT)) | |
fa69dc9c UD |
841 | s.decided = loc; |
842 | s.want_xday = 1; | |
ccadf7b5 UD |
843 | break; |
844 | } | |
fa69dc9c | 845 | s.decided = raw; |
ccadf7b5 UD |
846 | } |
847 | /* The C locale has no era information, so use the | |
848 | normal representation. */ | |
849 | if (!recursive (HERE_D_T_FMT)) | |
850 | return NULL; | |
fa69dc9c | 851 | s.want_xday = 1; |
ccadf7b5 UD |
852 | break; |
853 | case 'C': | |
fa69dc9c | 854 | if (s.decided != raw) |
ccadf7b5 | 855 | { |
fa69dc9c | 856 | if (s.era_cnt >= 0) |
ccadf7b5 | 857 | { |
fa69dc9c | 858 | era = _nl_select_era_entry (s.era_cnt HELPER_LOCALE_ARG); |
ccadf7b5 UD |
859 | if (era != NULL && match_string (era->era_name, rp)) |
860 | { | |
fa69dc9c | 861 | s.decided = loc; |
ccadf7b5 UD |
862 | break; |
863 | } | |
864 | else | |
865 | return NULL; | |
866 | } | |
1750bc8d UD |
867 | |
868 | num_eras = _NL_CURRENT_WORD (LC_TIME, | |
869 | _NL_TIME_ERA_NUM_ENTRIES); | |
fa69dc9c UD |
870 | for (s.era_cnt = 0; s.era_cnt < (int) num_eras; |
871 | ++s.era_cnt, rp = rp_backup) | |
ccadf7b5 | 872 | { |
fa69dc9c | 873 | era = _nl_select_era_entry (s.era_cnt |
1750bc8d UD |
874 | HELPER_LOCALE_ARG); |
875 | if (era != NULL && match_string (era->era_name, rp)) | |
ccadf7b5 | 876 | { |
fa69dc9c | 877 | s.decided = loc; |
1750bc8d | 878 | break; |
ccadf7b5 | 879 | } |
ccadf7b5 | 880 | } |
fa69dc9c | 881 | if (s.era_cnt != (int) num_eras) |
1750bc8d UD |
882 | break; |
883 | ||
fa69dc9c UD |
884 | s.era_cnt = -1; |
885 | if (s.decided == loc) | |
1750bc8d | 886 | return NULL; |
ccadf7b5 | 887 | |
fa69dc9c | 888 | s.decided = raw; |
ccadf7b5 UD |
889 | } |
890 | /* The C locale has no era information, so use the | |
891 | normal representation. */ | |
892 | goto match_century; | |
893 | case 'y': | |
fa69dc9c | 894 | if (s.decided != raw) |
1750bc8d UD |
895 | { |
896 | get_number(0, 9999, 4); | |
897 | tm->tm_year = val; | |
fa69dc9c UD |
898 | s.want_era = 1; |
899 | s.want_xday = 1; | |
900 | s.want_century = 1; | |
ccadf7b5 | 901 | |
fa69dc9c | 902 | if (s.era_cnt >= 0) |
1750bc8d | 903 | { |
fa69dc9c | 904 | assert (s.decided == loc); |
1750bc8d | 905 | |
fa69dc9c | 906 | era = _nl_select_era_entry (s.era_cnt HELPER_LOCALE_ARG); |
1750bc8d UD |
907 | bool match = false; |
908 | if (era != NULL) | |
909 | { | |
910 | int delta = ((tm->tm_year - era->offset) | |
911 | * era->absolute_direction); | |
e0e4c321 DD |
912 | /* The difference between two sets of years |
913 | does not include the final year itself, | |
914 | therefore add 1 to the difference to | |
915 | account for that final year. */ | |
1750bc8d UD |
916 | match = (delta >= 0 |
917 | && delta < (((int64_t) era->stop_date[0] | |
918 | - (int64_t) era->start_date[0]) | |
e0e4c321 DD |
919 | * era->absolute_direction |
920 | + 1)); | |
1750bc8d UD |
921 | } |
922 | if (! match) | |
923 | return NULL; | |
924 | ||
925 | break; | |
926 | } | |
927 | ||
928 | num_eras = _NL_CURRENT_WORD (LC_TIME, | |
929 | _NL_TIME_ERA_NUM_ENTRIES); | |
fa69dc9c | 930 | for (s.era_cnt = 0; s.era_cnt < (int) num_eras; ++s.era_cnt) |
1750bc8d | 931 | { |
fa69dc9c | 932 | era = _nl_select_era_entry (s.era_cnt |
1750bc8d UD |
933 | HELPER_LOCALE_ARG); |
934 | if (era != NULL) | |
935 | { | |
936 | int delta = ((tm->tm_year - era->offset) | |
937 | * era->absolute_direction); | |
e0e4c321 | 938 | /* See comment above about year difference + 1. */ |
1750bc8d UD |
939 | if (delta >= 0 |
940 | && delta < (((int64_t) era->stop_date[0] | |
941 | - (int64_t) era->start_date[0]) | |
e0e4c321 DD |
942 | * era->absolute_direction |
943 | + 1)) | |
1750bc8d | 944 | { |
fa69dc9c | 945 | s.decided = loc; |
1750bc8d UD |
946 | break; |
947 | } | |
948 | } | |
949 | } | |
fa69dc9c | 950 | if (s.era_cnt != (int) num_eras) |
1750bc8d UD |
951 | break; |
952 | ||
fa69dc9c UD |
953 | s.era_cnt = -1; |
954 | if (s.decided == loc) | |
1750bc8d UD |
955 | return NULL; |
956 | ||
fa69dc9c | 957 | s.decided = raw; |
1750bc8d UD |
958 | } |
959 | ||
960 | goto match_year_in_century; | |
ccadf7b5 | 961 | case 'Y': |
fa69dc9c | 962 | if (s.decided != raw) |
ccadf7b5 UD |
963 | { |
964 | num_eras = _NL_CURRENT_WORD (LC_TIME, | |
965 | _NL_TIME_ERA_NUM_ENTRIES); | |
fa69dc9c UD |
966 | for (s.era_cnt = 0; s.era_cnt < (int) num_eras; |
967 | ++s.era_cnt, rp = rp_backup) | |
ccadf7b5 | 968 | { |
fa69dc9c | 969 | era = _nl_select_era_entry (s.era_cnt HELPER_LOCALE_ARG); |
ccadf7b5 UD |
970 | if (era != NULL && recursive (era->era_format)) |
971 | break; | |
972 | } | |
fa69dc9c | 973 | if (s.era_cnt == (int) num_eras) |
ccadf7b5 | 974 | { |
fa69dc9c UD |
975 | s.era_cnt = -1; |
976 | if (s.decided == loc) | |
ccadf7b5 UD |
977 | return NULL; |
978 | else | |
979 | rp = rp_backup; | |
980 | } | |
981 | else | |
982 | { | |
fa69dc9c | 983 | s.decided = loc; |
ccadf7b5 UD |
984 | break; |
985 | } | |
986 | ||
fa69dc9c | 987 | s.decided = raw; |
ccadf7b5 UD |
988 | } |
989 | get_number (0, 9999, 4); | |
990 | tm->tm_year = val - 1900; | |
fa69dc9c UD |
991 | s.want_century = 0; |
992 | s.want_xday = 1; | |
ccadf7b5 UD |
993 | break; |
994 | case 'x': | |
fa69dc9c | 995 | if (s.decided != raw) |
ccadf7b5 UD |
996 | { |
997 | const char *fmt = _NL_CURRENT (LC_TIME, ERA_D_FMT); | |
998 | ||
999 | if (*fmt == '\0') | |
1000 | fmt = _NL_CURRENT (LC_TIME, D_FMT); | |
1001 | ||
1002 | if (!recursive (fmt)) | |
1003 | { | |
fa69dc9c | 1004 | if (s.decided == loc) |
ccadf7b5 UD |
1005 | return NULL; |
1006 | else | |
1007 | rp = rp_backup; | |
1008 | } | |
1009 | else | |
1010 | { | |
1011 | if (strcmp (fmt, HERE_D_FMT)) | |
fa69dc9c | 1012 | s.decided = loc; |
ccadf7b5 UD |
1013 | break; |
1014 | } | |
fa69dc9c | 1015 | s.decided = raw; |
ccadf7b5 UD |
1016 | } |
1017 | if (!recursive (HERE_D_FMT)) | |
1018 | return NULL; | |
1019 | break; | |
1020 | case 'X': | |
fa69dc9c | 1021 | if (s.decided != raw) |
ccadf7b5 UD |
1022 | { |
1023 | const char *fmt = _NL_CURRENT (LC_TIME, ERA_T_FMT); | |
1024 | ||
1025 | if (*fmt == '\0') | |
1026 | fmt = _NL_CURRENT (LC_TIME, T_FMT); | |
1027 | ||
1028 | if (!recursive (fmt)) | |
1029 | { | |
fa69dc9c | 1030 | if (s.decided == loc) |
ccadf7b5 UD |
1031 | return NULL; |
1032 | else | |
1033 | rp = rp_backup; | |
1034 | } | |
1035 | else | |
1036 | { | |
1037 | if (strcmp (fmt, HERE_T_FMT)) | |
fa69dc9c | 1038 | s.decided = loc; |
ccadf7b5 UD |
1039 | break; |
1040 | } | |
fa69dc9c | 1041 | s.decided = raw; |
ccadf7b5 UD |
1042 | } |
1043 | if (!recursive (HERE_T_FMT)) | |
1044 | return NULL; | |
1045 | break; | |
1046 | default: | |
1047 | return NULL; | |
1048 | } | |
1049 | break; | |
1050 | #else | |
1051 | /* We have no information about the era format. Just use | |
1052 | the normal format. */ | |
1053 | if (*fmt != 'c' && *fmt != 'C' && *fmt != 'y' && *fmt != 'Y' | |
1054 | && *fmt != 'x' && *fmt != 'X') | |
1055 | /* This is an illegal format. */ | |
1056 | return NULL; | |
1057 | ||
1058 | goto start_over; | |
1059 | #endif | |
1060 | case 'O': | |
1061 | switch (*fmt++) | |
1062 | { | |
761a585c | 1063 | case 'b': |
95cb863a | 1064 | case 'B': |
761a585c | 1065 | case 'h': |
95cb863a RL |
1066 | /* Match month name. Reprocess as plain 'B'. */ |
1067 | fmt--; | |
1068 | goto start_over; | |
ccadf7b5 UD |
1069 | case 'd': |
1070 | case 'e': | |
1071 | /* Match day of month using alternate numeric symbols. */ | |
1072 | get_alt_number (1, 31, 2); | |
1073 | tm->tm_mday = val; | |
fa69dc9c UD |
1074 | s.have_mday = 1; |
1075 | s.want_xday = 1; | |
ccadf7b5 UD |
1076 | break; |
1077 | case 'H': | |
1078 | /* Match hour in 24-hour clock using alternate numeric | |
1079 | symbols. */ | |
1080 | get_alt_number (0, 23, 2); | |
1081 | tm->tm_hour = val; | |
fa69dc9c | 1082 | s.have_I = 0; |
ccadf7b5 UD |
1083 | break; |
1084 | case 'I': | |
1085 | /* Match hour in 12-hour clock using alternate numeric | |
1086 | symbols. */ | |
1087 | get_alt_number (1, 12, 2); | |
1088 | tm->tm_hour = val % 12; | |
fa69dc9c | 1089 | s.have_I = 1; |
ccadf7b5 UD |
1090 | break; |
1091 | case 'm': | |
1092 | /* Match month using alternate numeric symbols. */ | |
1093 | get_alt_number (1, 12, 2); | |
1094 | tm->tm_mon = val - 1; | |
fa69dc9c UD |
1095 | s.have_mon = 1; |
1096 | s.want_xday = 1; | |
ccadf7b5 UD |
1097 | break; |
1098 | case 'M': | |
1099 | /* Match minutes using alternate numeric symbols. */ | |
1100 | get_alt_number (0, 59, 2); | |
1101 | tm->tm_min = val; | |
1102 | break; | |
1103 | case 'S': | |
1104 | /* Match seconds using alternate numeric symbols. */ | |
1105 | get_alt_number (0, 61, 2); | |
1106 | tm->tm_sec = val; | |
1107 | break; | |
1108 | case 'U': | |
1109 | get_alt_number (0, 53, 2); | |
fa69dc9c UD |
1110 | s.week_no = val; |
1111 | s.have_uweek = 1; | |
ccadf7b5 UD |
1112 | break; |
1113 | case 'W': | |
1114 | get_alt_number (0, 53, 2); | |
fa69dc9c UD |
1115 | s.week_no = val; |
1116 | s.have_wweek = 1; | |
ccadf7b5 UD |
1117 | break; |
1118 | case 'V': | |
1119 | get_alt_number (0, 53, 2); | |
1120 | /* XXX This cannot determine any field in TM without | |
1121 | further information. */ | |
1122 | break; | |
1123 | case 'w': | |
1124 | /* Match number of weekday using alternate numeric symbols. */ | |
1125 | get_alt_number (0, 6, 1); | |
1126 | tm->tm_wday = val; | |
fa69dc9c | 1127 | s.have_wday = 1; |
ccadf7b5 UD |
1128 | break; |
1129 | case 'y': | |
1130 | /* Match year within century using alternate numeric symbols. */ | |
1131 | get_alt_number (0, 99, 2); | |
1132 | tm->tm_year = val >= 69 ? val : val + 100; | |
fa69dc9c | 1133 | s.want_xday = 1; |
ccadf7b5 UD |
1134 | break; |
1135 | default: | |
1136 | return NULL; | |
1137 | } | |
1138 | break; | |
1139 | default: | |
1140 | return NULL; | |
1141 | } | |
1142 | } | |
1143 | ||
fa69dc9c UD |
1144 | if (statep != NULL) |
1145 | { | |
1146 | /* Recursive invocation, returning success, so | |
1147 | update parent's struct tm and state. */ | |
1148 | *(struct __strptime_state *) statep = s; | |
1149 | *tmp = tmb; | |
1150 | return (char *) rp; | |
1151 | } | |
1152 | ||
1153 | if (s.have_I && s.is_pm) | |
ccadf7b5 UD |
1154 | tm->tm_hour += 12; |
1155 | ||
fa69dc9c | 1156 | if (s.century != -1) |
ccadf7b5 | 1157 | { |
fa69dc9c UD |
1158 | if (s.want_century) |
1159 | tm->tm_year = tm->tm_year % 100 + (s.century - 19) * 100; | |
ccadf7b5 UD |
1160 | else |
1161 | /* Only the century, but not the year. Strange, but so be it. */ | |
fa69dc9c | 1162 | tm->tm_year = (s.century - 19) * 100; |
ccadf7b5 UD |
1163 | } |
1164 | ||
fa69dc9c | 1165 | if (s.era_cnt != -1) |
ccadf7b5 | 1166 | { |
fa69dc9c | 1167 | era = _nl_select_era_entry (s.era_cnt HELPER_LOCALE_ARG); |
ccadf7b5 UD |
1168 | if (era == NULL) |
1169 | return NULL; | |
fa69dc9c | 1170 | if (s.want_era) |
ccadf7b5 UD |
1171 | tm->tm_year = (era->start_date[0] |
1172 | + ((tm->tm_year - era->offset) | |
1173 | * era->absolute_direction)); | |
1174 | else | |
1175 | /* Era start year assumed. */ | |
1176 | tm->tm_year = era->start_date[0]; | |
1177 | } | |
1178 | else | |
fa69dc9c | 1179 | if (s.want_era) |
ccadf7b5 UD |
1180 | { |
1181 | /* No era found but we have seen an E modifier. Rectify some | |
1182 | values. */ | |
fa69dc9c | 1183 | if (s.want_century && s.century == -1 && tm->tm_year < 69) |
ccadf7b5 UD |
1184 | tm->tm_year += 100; |
1185 | } | |
1186 | ||
fa69dc9c | 1187 | if (s.want_xday && !s.have_wday) |
ccadf7b5 | 1188 | { |
fa69dc9c | 1189 | if ( !(s.have_mon && s.have_mday) && s.have_yday) |
ccadf7b5 UD |
1190 | { |
1191 | /* We don't have tm_mon and/or tm_mday, compute them. */ | |
1192 | int t_mon = 0; | |
1193 | while (__mon_yday[__isleap(1900 + tm->tm_year)][t_mon] <= tm->tm_yday) | |
1194 | t_mon++; | |
fa69dc9c | 1195 | if (!s.have_mon) |
ccadf7b5 | 1196 | tm->tm_mon = t_mon - 1; |
fa69dc9c | 1197 | if (!s.have_mday) |
ccadf7b5 UD |
1198 | tm->tm_mday = |
1199 | (tm->tm_yday | |
1200 | - __mon_yday[__isleap(1900 + tm->tm_year)][t_mon - 1] + 1); | |
fa69dc9c UD |
1201 | s.have_mon = 1; |
1202 | s.have_mday = 1; | |
ccadf7b5 | 1203 | } |
00458b5b | 1204 | /* Don't crash in day_of_the_week if tm_mon is uninitialized. */ |
fa69dc9c | 1205 | if (s.have_mon || (unsigned) tm->tm_mon <= 11) |
00458b5b | 1206 | day_of_the_week (tm); |
ccadf7b5 UD |
1207 | } |
1208 | ||
fa69dc9c | 1209 | if (s.want_xday && !s.have_yday && (s.have_mon || (unsigned) tm->tm_mon <= 11)) |
ccadf7b5 UD |
1210 | day_of_the_year (tm); |
1211 | ||
fa69dc9c | 1212 | if ((s.have_uweek || s.have_wweek) && s.have_wday) |
ccadf7b5 UD |
1213 | { |
1214 | int save_wday = tm->tm_wday; | |
1215 | int save_mday = tm->tm_mday; | |
1216 | int save_mon = tm->tm_mon; | |
fa69dc9c | 1217 | int w_offset = s.have_uweek ? 0 : 1; |
ccadf7b5 UD |
1218 | |
1219 | tm->tm_mday = 1; | |
1220 | tm->tm_mon = 0; | |
1221 | day_of_the_week (tm); | |
fa69dc9c | 1222 | if (s.have_mday) |
ccadf7b5 | 1223 | tm->tm_mday = save_mday; |
fa69dc9c | 1224 | if (s.have_mon) |
ccadf7b5 UD |
1225 | tm->tm_mon = save_mon; |
1226 | ||
fa69dc9c | 1227 | if (!s.have_yday) |
ccadf7b5 | 1228 | tm->tm_yday = ((7 - (tm->tm_wday - w_offset)) % 7 |
840e2943 AS |
1229 | + (s.week_no - 1) * 7 |
1230 | + (save_wday - w_offset + 7) % 7); | |
ccadf7b5 | 1231 | |
fa69dc9c | 1232 | if (!s.have_mday || !s.have_mon) |
ccadf7b5 UD |
1233 | { |
1234 | int t_mon = 0; | |
1235 | while (__mon_yday[__isleap(1900 + tm->tm_year)][t_mon] | |
1236 | <= tm->tm_yday) | |
1237 | t_mon++; | |
fa69dc9c | 1238 | if (!s.have_mon) |
ccadf7b5 | 1239 | tm->tm_mon = t_mon - 1; |
fa69dc9c | 1240 | if (!s.have_mday) |
ccadf7b5 UD |
1241 | tm->tm_mday = |
1242 | (tm->tm_yday | |
1243 | - __mon_yday[__isleap(1900 + tm->tm_year)][t_mon - 1] + 1); | |
1244 | } | |
1245 | ||
1246 | tm->tm_wday = save_wday; | |
1247 | } | |
1248 | ||
1249 | return (char *) rp; | |
1250 | } | |
1251 | ||
1252 | ||
1253 | char * | |
80d9be81 | 1254 | strptime (const char *buf, const char *format, struct tm *tm LOCALE_PARAM) |
ccadf7b5 | 1255 | { |
fa69dc9c | 1256 | return __strptime_internal (buf, format, tm, NULL LOCALE_ARG); |
ccadf7b5 UD |
1257 | } |
1258 | ||
1259 | #ifdef _LIBC | |
60f20c19 | 1260 | weak_alias (__strptime_l, strptime_l) |
ccadf7b5 | 1261 | #endif |