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688903eb | 1 | /* Copyright (C) 2002-2018 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 PE |
15 | License along with the GNU C Library; if not, see |
16 | <http://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 UD |
32 | # include "../locale/localeinfo.h" |
33 | #endif | |
34 | ||
35 | ||
ccadf7b5 UD |
36 | #if ! HAVE_LOCALTIME_R && ! defined localtime_r |
37 | # ifdef _LIBC | |
38 | # define localtime_r __localtime_r | |
39 | # else | |
40 | /* Approximate localtime_r as best we can in its absence. */ | |
41 | # define localtime_r my_localtime_r | |
cc9f65ce | 42 | static struct tm *localtime_r (const time_t *, struct tm *); |
ccadf7b5 | 43 | static struct tm * |
9dd346ff | 44 | localtime_r (const time_t *t, struct tm *tp) |
ccadf7b5 UD |
45 | { |
46 | struct tm *l = localtime (t); | |
47 | if (! l) | |
48 | return 0; | |
49 | *tp = *l; | |
50 | return tp; | |
51 | } | |
52 | # endif /* ! _LIBC */ | |
53 | #endif /* ! HAVE_LOCALTIME_R && ! defined (localtime_r) */ | |
54 | ||
55 | ||
56 | #define match_char(ch1, ch2) if (ch1 != ch2) return NULL | |
57 | #if defined __GNUC__ && __GNUC__ >= 2 | |
58 | # define match_string(cs1, s2) \ | |
59 | ({ size_t len = strlen (cs1); \ | |
60 | int result = __strncasecmp_l ((cs1), (s2), len, locale) == 0; \ | |
61 | if (result) (s2) += len; \ | |
62 | result; }) | |
63 | #else | |
64 | /* Oh come on. Get a reasonable compiler. */ | |
65 | # define match_string(cs1, s2) \ | |
66 | (strncasecmp ((cs1), (s2), strlen (cs1)) ? 0 : ((s2) += strlen (cs1), 1)) | |
67 | #endif | |
68 | /* We intentionally do not use isdigit() for testing because this will | |
69 | lead to problems with the wide character version. */ | |
70 | #define get_number(from, to, n) \ | |
71 | do { \ | |
72 | int __n = n; \ | |
73 | val = 0; \ | |
ff491d14 | 74 | while (ISSPACE (*rp)) \ |
ccadf7b5 UD |
75 | ++rp; \ |
76 | if (*rp < '0' || *rp > '9') \ | |
77 | return NULL; \ | |
78 | do { \ | |
79 | val *= 10; \ | |
80 | val += *rp++ - '0'; \ | |
81 | } while (--__n > 0 && val * 10 <= to && *rp >= '0' && *rp <= '9'); \ | |
82 | if (val < from || val > to) \ | |
83 | return NULL; \ | |
84 | } while (0) | |
85 | #ifdef _NL_CURRENT | |
86 | # define get_alt_number(from, to, n) \ | |
87 | ({ \ | |
88 | __label__ do_normal; \ | |
89 | \ | |
fa69dc9c | 90 | if (s.decided != raw) \ |
ccadf7b5 UD |
91 | { \ |
92 | val = _nl_parse_alt_digit (&rp HELPER_LOCALE_ARG); \ | |
fa69dc9c | 93 | if (val == -1 && s.decided != loc) \ |
ccadf7b5 | 94 | { \ |
fa69dc9c | 95 | s.decided = loc; \ |
ccadf7b5 UD |
96 | goto do_normal; \ |
97 | } \ | |
98 | if (val < from || val > to) \ | |
99 | return NULL; \ | |
100 | } \ | |
101 | else \ | |
102 | { \ | |
103 | do_normal: \ | |
104 | get_number (from, to, n); \ | |
105 | } \ | |
106 | 0; \ | |
107 | }) | |
108 | #else | |
109 | # define get_alt_number(from, to, n) \ | |
110 | /* We don't have the alternate representation. */ \ | |
111 | get_number(from, to, n) | |
112 | #endif | |
113 | #define recursive(new_fmt) \ | |
114 | (*(new_fmt) != '\0' \ | |
fa69dc9c | 115 | && (rp = __strptime_internal (rp, (new_fmt), tm, &s LOCALE_ARG)) != NULL) |
ccadf7b5 UD |
116 | |
117 | ||
118 | #ifdef _LIBC | |
119 | /* This is defined in locale/C-time.c in the GNU libc. */ | |
f095bb72 | 120 | extern const struct __locale_data _nl_C_LC_TIME attribute_hidden; |
ccadf7b5 UD |
121 | |
122 | # define weekday_name (&_nl_C_LC_TIME.values[_NL_ITEM_INDEX (DAY_1)].string) | |
123 | # define ab_weekday_name \ | |
124 | (&_nl_C_LC_TIME.values[_NL_ITEM_INDEX (ABDAY_1)].string) | |
125 | # define month_name (&_nl_C_LC_TIME.values[_NL_ITEM_INDEX (MON_1)].string) | |
126 | # define ab_month_name (&_nl_C_LC_TIME.values[_NL_ITEM_INDEX (ABMON_1)].string) | |
95cb863a RL |
127 | # define alt_month_name \ |
128 | (&_nl_C_LC_TIME.values[_NL_ITEM_INDEX (ALTMON_1)].string) | |
761a585c RL |
129 | # define ab_alt_month_name \ |
130 | (&_nl_C_LC_TIME.values[_NL_ITEM_INDEX (_NL_ABALTMON_1)].string) | |
ccadf7b5 UD |
131 | # define HERE_D_T_FMT (_nl_C_LC_TIME.values[_NL_ITEM_INDEX (D_T_FMT)].string) |
132 | # define HERE_D_FMT (_nl_C_LC_TIME.values[_NL_ITEM_INDEX (D_FMT)].string) | |
133 | # define HERE_AM_STR (_nl_C_LC_TIME.values[_NL_ITEM_INDEX (AM_STR)].string) | |
134 | # define HERE_PM_STR (_nl_C_LC_TIME.values[_NL_ITEM_INDEX (PM_STR)].string) | |
135 | # define HERE_T_FMT_AMPM \ | |
136 | (_nl_C_LC_TIME.values[_NL_ITEM_INDEX (T_FMT_AMPM)].string) | |
137 | # define HERE_T_FMT (_nl_C_LC_TIME.values[_NL_ITEM_INDEX (T_FMT)].string) | |
138 | ||
139 | # define strncasecmp(s1, s2, n) __strncasecmp (s1, s2, n) | |
140 | #else | |
141 | static char const weekday_name[][10] = | |
142 | { | |
143 | "Sunday", "Monday", "Tuesday", "Wednesday", | |
144 | "Thursday", "Friday", "Saturday" | |
145 | }; | |
146 | static char const ab_weekday_name[][4] = | |
147 | { | |
148 | "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" | |
149 | }; | |
150 | static char const month_name[][10] = | |
151 | { | |
152 | "January", "February", "March", "April", "May", "June", | |
153 | "July", "August", "September", "October", "November", "December" | |
154 | }; | |
155 | static char const ab_month_name[][4] = | |
156 | { | |
157 | "Jan", "Feb", "Mar", "Apr", "May", "Jun", | |
158 | "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" | |
159 | }; | |
160 | # define HERE_D_T_FMT "%a %b %e %H:%M:%S %Y" | |
161 | # define HERE_D_FMT "%m/%d/%y" | |
162 | # define HERE_AM_STR "AM" | |
163 | # define HERE_PM_STR "PM" | |
164 | # define HERE_T_FMT_AMPM "%I:%M:%S %p" | |
165 | # define HERE_T_FMT "%H:%M:%S" | |
166 | ||
167 | static const unsigned short int __mon_yday[2][13] = | |
168 | { | |
169 | /* Normal years. */ | |
170 | { 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365 }, | |
171 | /* Leap years. */ | |
172 | { 0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335, 366 } | |
173 | }; | |
174 | #endif | |
175 | ||
176 | #if defined _LIBC | |
177 | /* We use this code also for the extended locale handling where the | |
178 | function gets as an additional argument the locale which has to be | |
179 | used. To access the values we have to redefine the _NL_CURRENT | |
180 | macro. */ | |
181 | # define strptime __strptime_l | |
182 | # undef _NL_CURRENT | |
183 | # define _NL_CURRENT(category, item) \ | |
184 | (current->values[_NL_ITEM_INDEX (item)].string) | |
185 | # undef _NL_CURRENT_WORD | |
186 | # define _NL_CURRENT_WORD(category, item) \ | |
187 | (current->values[_NL_ITEM_INDEX (item)].word) | |
af85385f | 188 | # define LOCALE_PARAM , locale_t locale |
ccadf7b5 | 189 | # define LOCALE_ARG , locale |
ccadf7b5 UD |
190 | # define HELPER_LOCALE_ARG , current |
191 | # define ISSPACE(Ch) __isspace_l (Ch, locale) | |
192 | #else | |
193 | # define LOCALE_PARAM | |
194 | # define LOCALE_ARG | |
ccadf7b5 UD |
195 | # define HELPER_LOCALE_ARG |
196 | # define ISSPACE(Ch) isspace (Ch) | |
197 | #endif | |
198 | ||
199 | ||
200 | ||
201 | ||
202 | #ifndef __isleap | |
203 | /* Nonzero if YEAR is a leap year (every 4 years, | |
204 | except every 100th isn't, and every 400th is). */ | |
205 | # define __isleap(year) \ | |
206 | ((year) % 4 == 0 && ((year) % 100 != 0 || (year) % 400 == 0)) | |
207 | #endif | |
208 | ||
209 | /* Compute the day of the week. */ | |
210 | static void | |
211 | day_of_the_week (struct tm *tm) | |
212 | { | |
213 | /* We know that January 1st 1970 was a Thursday (= 4). Compute the | |
ded5b9b7 | 214 | difference between this data in the one on TM and so determine |
ccadf7b5 UD |
215 | the weekday. */ |
216 | int corr_year = 1900 + tm->tm_year - (tm->tm_mon < 2); | |
217 | int wday = (-473 | |
218 | + (365 * (tm->tm_year - 70)) | |
219 | + (corr_year / 4) | |
220 | - ((corr_year / 4) / 25) + ((corr_year / 4) % 25 < 0) | |
221 | + (((corr_year / 4) / 25) / 4) | |
222 | + __mon_yday[0][tm->tm_mon] | |
223 | + tm->tm_mday - 1); | |
224 | tm->tm_wday = ((wday % 7) + 7) % 7; | |
225 | } | |
226 | ||
227 | /* Compute the day of the year. */ | |
228 | static void | |
229 | day_of_the_year (struct tm *tm) | |
230 | { | |
231 | tm->tm_yday = (__mon_yday[__isleap (1900 + tm->tm_year)][tm->tm_mon] | |
232 | + (tm->tm_mday - 1)); | |
233 | } | |
234 | ||
235 | ||
236 | #ifdef _LIBC | |
237 | char * | |
ccadf7b5 UD |
238 | #else |
239 | static char * | |
240 | #endif | |
80d9be81 JM |
241 | __strptime_internal (const char *rp, const char *fmt, struct tm *tmp, |
242 | void *statep LOCALE_PARAM) | |
ccadf7b5 UD |
243 | { |
244 | #ifdef _LIBC | |
f095bb72 | 245 | struct __locale_data *const current = locale->__locales[LC_TIME]; |
ccadf7b5 UD |
246 | #endif |
247 | ||
248 | const char *rp_backup; | |
f98c2d06 | 249 | const char *rp_longest; |
ccadf7b5 | 250 | int cnt; |
f98c2d06 | 251 | int cnt_longest; |
ccadf7b5 | 252 | size_t val; |
ccadf7b5 | 253 | size_t num_eras; |
fa69dc9c UD |
254 | struct era_entry *era = NULL; |
255 | enum ptime_locale_status { not, loc, raw } decided_longest; | |
256 | struct __strptime_state | |
257 | { | |
258 | unsigned int have_I : 1; | |
259 | unsigned int have_wday : 1; | |
260 | unsigned int have_yday : 1; | |
261 | unsigned int have_mon : 1; | |
262 | unsigned int have_mday : 1; | |
263 | unsigned int have_uweek : 1; | |
264 | unsigned int have_wweek : 1; | |
265 | unsigned int is_pm : 1; | |
266 | unsigned int want_century : 1; | |
267 | unsigned int want_era : 1; | |
268 | unsigned int want_xday : 1; | |
269 | enum ptime_locale_status decided : 2; | |
270 | signed char week_no; | |
271 | signed char century; | |
272 | int era_cnt; | |
273 | } s; | |
274 | struct tm tmb; | |
275 | struct tm *tm; | |
276 | ||
277 | if (statep == NULL) | |
278 | { | |
279 | memset (&s, 0, sizeof (s)); | |
280 | s.century = -1; | |
281 | s.era_cnt = -1; | |
282 | #ifdef _NL_CURRENT | |
283 | s.decided = not; | |
284 | #else | |
285 | s.decided = raw; | |
286 | #endif | |
287 | tm = tmp; | |
288 | } | |
289 | else | |
290 | { | |
291 | s = *(struct __strptime_state *) statep; | |
292 | tmb = *tmp; | |
293 | tm = &tmb; | |
294 | } | |
ccadf7b5 UD |
295 | |
296 | while (*fmt != '\0') | |
297 | { | |
298 | /* A white space in the format string matches 0 more or white | |
299 | space in the input string. */ | |
300 | if (ISSPACE (*fmt)) | |
301 | { | |
302 | while (ISSPACE (*rp)) | |
303 | ++rp; | |
304 | ++fmt; | |
305 | continue; | |
306 | } | |
307 | ||
308 | /* Any character but `%' must be matched by the same character | |
309 | in the iput string. */ | |
310 | if (*fmt != '%') | |
311 | { | |
312 | match_char (*fmt++, *rp++); | |
313 | continue; | |
314 | } | |
315 | ||
316 | ++fmt; | |
19e3372b OB |
317 | /* We discard strftime modifiers. */ |
318 | while (*fmt == '-' || *fmt == '_' || *fmt == '0' | |
319 | || *fmt == '^' || *fmt == '#') | |
320 | ++fmt; | |
321 | ||
322 | /* And field width. */ | |
323 | while (*fmt >= '0' && *fmt <= '9') | |
324 | ++fmt; | |
ae1ad762 | 325 | |
95cb863a RL |
326 | /* In some cases, modifiers are handled by adjusting state and |
327 | then restarting the switch statement below. */ | |
ccadf7b5 | 328 | start_over: |
ccadf7b5 UD |
329 | |
330 | /* Make back up of current processing pointer. */ | |
331 | rp_backup = rp; | |
332 | ||
333 | switch (*fmt++) | |
334 | { | |
335 | case '%': | |
336 | /* Match the `%' character itself. */ | |
337 | match_char ('%', *rp++); | |
338 | break; | |
339 | case 'a': | |
340 | case 'A': | |
341 | /* Match day of week. */ | |
f98c2d06 | 342 | rp_longest = NULL; |
fa69dc9c | 343 | decided_longest = s.decided; |
f98c2d06 | 344 | cnt_longest = -1; |
ccadf7b5 UD |
345 | for (cnt = 0; cnt < 7; ++cnt) |
346 | { | |
f98c2d06 | 347 | const char *trp; |
ccadf7b5 | 348 | #ifdef _NL_CURRENT |
fa69dc9c | 349 | if (s.decided !=raw) |
ccadf7b5 | 350 | { |
f98c2d06 UD |
351 | trp = rp; |
352 | if (match_string (_NL_CURRENT (LC_TIME, DAY_1 + cnt), trp) | |
353 | && trp > rp_longest) | |
ccadf7b5 | 354 | { |
f98c2d06 UD |
355 | rp_longest = trp; |
356 | cnt_longest = cnt; | |
fa69dc9c | 357 | if (s.decided == not |
ccadf7b5 UD |
358 | && strcmp (_NL_CURRENT (LC_TIME, DAY_1 + cnt), |
359 | weekday_name[cnt])) | |
f98c2d06 | 360 | decided_longest = loc; |
ccadf7b5 | 361 | } |
f98c2d06 UD |
362 | trp = rp; |
363 | if (match_string (_NL_CURRENT (LC_TIME, ABDAY_1 + cnt), trp) | |
364 | && trp > rp_longest) | |
ccadf7b5 | 365 | { |
f98c2d06 UD |
366 | rp_longest = trp; |
367 | cnt_longest = cnt; | |
fa69dc9c | 368 | if (s.decided == not |
ccadf7b5 UD |
369 | && strcmp (_NL_CURRENT (LC_TIME, ABDAY_1 + cnt), |
370 | ab_weekday_name[cnt])) | |
f98c2d06 | 371 | decided_longest = loc; |
ccadf7b5 UD |
372 | } |
373 | } | |
374 | #endif | |
fa69dc9c | 375 | if (s.decided != loc |
f98c2d06 UD |
376 | && (((trp = rp, match_string (weekday_name[cnt], trp)) |
377 | && trp > rp_longest) | |
378 | || ((trp = rp, match_string (ab_weekday_name[cnt], rp)) | |
379 | && trp > rp_longest))) | |
ccadf7b5 | 380 | { |
f98c2d06 UD |
381 | rp_longest = trp; |
382 | cnt_longest = cnt; | |
383 | decided_longest = raw; | |
ccadf7b5 UD |
384 | } |
385 | } | |
f98c2d06 | 386 | if (rp_longest == NULL) |
ccadf7b5 UD |
387 | /* Does not match a weekday name. */ |
388 | return NULL; | |
f98c2d06 | 389 | rp = rp_longest; |
fa69dc9c | 390 | s.decided = decided_longest; |
f98c2d06 | 391 | tm->tm_wday = cnt_longest; |
fa69dc9c | 392 | s.have_wday = 1; |
ccadf7b5 UD |
393 | break; |
394 | case 'b': | |
395 | case 'B': | |
396 | case 'h': | |
397 | /* Match month name. */ | |
f98c2d06 | 398 | rp_longest = NULL; |
fa69dc9c | 399 | decided_longest = s.decided; |
f98c2d06 | 400 | cnt_longest = -1; |
ccadf7b5 UD |
401 | for (cnt = 0; cnt < 12; ++cnt) |
402 | { | |
f98c2d06 | 403 | const char *trp; |
ccadf7b5 | 404 | #ifdef _NL_CURRENT |
fa69dc9c | 405 | if (s.decided !=raw) |
ccadf7b5 | 406 | { |
f98c2d06 UD |
407 | trp = rp; |
408 | if (match_string (_NL_CURRENT (LC_TIME, MON_1 + cnt), trp) | |
409 | && trp > rp_longest) | |
ccadf7b5 | 410 | { |
f98c2d06 UD |
411 | rp_longest = trp; |
412 | cnt_longest = cnt; | |
fa69dc9c | 413 | if (s.decided == not |
ccadf7b5 UD |
414 | && strcmp (_NL_CURRENT (LC_TIME, MON_1 + cnt), |
415 | month_name[cnt])) | |
f98c2d06 | 416 | decided_longest = loc; |
ccadf7b5 | 417 | } |
f98c2d06 UD |
418 | trp = rp; |
419 | if (match_string (_NL_CURRENT (LC_TIME, ABMON_1 + cnt), trp) | |
420 | && trp > rp_longest) | |
ccadf7b5 | 421 | { |
f98c2d06 UD |
422 | rp_longest = trp; |
423 | cnt_longest = cnt; | |
fa69dc9c | 424 | if (s.decided == not |
ccadf7b5 UD |
425 | && strcmp (_NL_CURRENT (LC_TIME, ABMON_1 + cnt), |
426 | ab_month_name[cnt])) | |
f98c2d06 | 427 | decided_longest = loc; |
ccadf7b5 | 428 | } |
95cb863a RL |
429 | #ifdef _LIBC |
430 | /* Now check the alt month. */ | |
431 | trp = rp; | |
432 | if (match_string (_NL_CURRENT (LC_TIME, ALTMON_1 + cnt), trp) | |
433 | && trp > rp_longest) | |
434 | { | |
435 | rp_longest = trp; | |
436 | cnt_longest = cnt; | |
437 | if (s.decided == not | |
438 | && strcmp (_NL_CURRENT (LC_TIME, ALTMON_1 + cnt), | |
439 | alt_month_name[cnt])) | |
440 | decided_longest = loc; | |
441 | } | |
761a585c RL |
442 | trp = rp; |
443 | if (match_string (_NL_CURRENT (LC_TIME, _NL_ABALTMON_1 + cnt), | |
444 | trp) | |
445 | && trp > rp_longest) | |
446 | { | |
447 | rp_longest = trp; | |
448 | cnt_longest = cnt; | |
449 | if (s.decided == not | |
450 | && strcmp (_NL_CURRENT (LC_TIME, _NL_ABALTMON_1 + cnt), | |
451 | alt_month_name[cnt])) | |
452 | decided_longest = loc; | |
453 | } | |
95cb863a | 454 | #endif |
ccadf7b5 UD |
455 | } |
456 | #endif | |
fa69dc9c | 457 | if (s.decided != loc |
f98c2d06 UD |
458 | && (((trp = rp, match_string (month_name[cnt], trp)) |
459 | && trp > rp_longest) | |
460 | || ((trp = rp, match_string (ab_month_name[cnt], trp)) | |
95cb863a RL |
461 | && trp > rp_longest) |
462 | #ifdef _LIBC | |
463 | || ((trp = rp, match_string (alt_month_name[cnt], trp)) | |
464 | && trp > rp_longest) | |
761a585c RL |
465 | || ((trp = rp, match_string (ab_alt_month_name[cnt], trp)) |
466 | && trp > rp_longest) | |
95cb863a RL |
467 | #endif |
468 | )) | |
ccadf7b5 | 469 | { |
f98c2d06 UD |
470 | rp_longest = trp; |
471 | cnt_longest = cnt; | |
472 | decided_longest = raw; | |
ccadf7b5 UD |
473 | } |
474 | } | |
f98c2d06 | 475 | if (rp_longest == NULL) |
ccadf7b5 UD |
476 | /* Does not match a month name. */ |
477 | return NULL; | |
f98c2d06 | 478 | rp = rp_longest; |
fa69dc9c | 479 | s.decided = decided_longest; |
f98c2d06 | 480 | tm->tm_mon = cnt_longest; |
fa69dc9c UD |
481 | s.have_mon = 1; |
482 | s.want_xday = 1; | |
ccadf7b5 UD |
483 | break; |
484 | case 'c': | |
485 | /* Match locale's date and time format. */ | |
486 | #ifdef _NL_CURRENT | |
fa69dc9c | 487 | if (s.decided != raw) |
ccadf7b5 UD |
488 | { |
489 | if (!recursive (_NL_CURRENT (LC_TIME, D_T_FMT))) | |
490 | { | |
fa69dc9c | 491 | if (s.decided == loc) |
ccadf7b5 UD |
492 | return NULL; |
493 | else | |
494 | rp = rp_backup; | |
495 | } | |
496 | else | |
497 | { | |
fa69dc9c | 498 | if (s.decided == not && |
ccadf7b5 | 499 | strcmp (_NL_CURRENT (LC_TIME, D_T_FMT), HERE_D_T_FMT)) |
fa69dc9c UD |
500 | s.decided = loc; |
501 | s.want_xday = 1; | |
ccadf7b5 UD |
502 | break; |
503 | } | |
fa69dc9c | 504 | s.decided = raw; |
ccadf7b5 UD |
505 | } |
506 | #endif | |
507 | if (!recursive (HERE_D_T_FMT)) | |
508 | return NULL; | |
fa69dc9c | 509 | s.want_xday = 1; |
ccadf7b5 UD |
510 | break; |
511 | case 'C': | |
512 | /* Match century number. */ | |
513 | match_century: | |
514 | get_number (0, 99, 2); | |
fa69dc9c UD |
515 | s.century = val; |
516 | s.want_xday = 1; | |
ccadf7b5 UD |
517 | break; |
518 | case 'd': | |
519 | case 'e': | |
520 | /* Match day of month. */ | |
521 | get_number (1, 31, 2); | |
522 | tm->tm_mday = val; | |
fa69dc9c UD |
523 | s.have_mday = 1; |
524 | s.want_xday = 1; | |
ccadf7b5 UD |
525 | break; |
526 | case 'F': | |
527 | if (!recursive ("%Y-%m-%d")) | |
528 | return NULL; | |
fa69dc9c | 529 | s.want_xday = 1; |
ccadf7b5 UD |
530 | break; |
531 | case 'x': | |
532 | #ifdef _NL_CURRENT | |
fa69dc9c | 533 | if (s.decided != raw) |
ccadf7b5 UD |
534 | { |
535 | if (!recursive (_NL_CURRENT (LC_TIME, D_FMT))) | |
536 | { | |
fa69dc9c | 537 | if (s.decided == loc) |
ccadf7b5 UD |
538 | return NULL; |
539 | else | |
540 | rp = rp_backup; | |
541 | } | |
542 | else | |
543 | { | |
fa69dc9c | 544 | if (s.decided == not |
ccadf7b5 | 545 | && strcmp (_NL_CURRENT (LC_TIME, D_FMT), HERE_D_FMT)) |
fa69dc9c UD |
546 | s.decided = loc; |
547 | s.want_xday = 1; | |
ccadf7b5 UD |
548 | break; |
549 | } | |
fa69dc9c | 550 | s.decided = raw; |
ccadf7b5 UD |
551 | } |
552 | #endif | |
553 | /* Fall through. */ | |
554 | case 'D': | |
555 | /* Match standard day format. */ | |
556 | if (!recursive (HERE_D_FMT)) | |
557 | return NULL; | |
fa69dc9c | 558 | s.want_xday = 1; |
ccadf7b5 UD |
559 | break; |
560 | case 'k': | |
561 | case 'H': | |
562 | /* Match hour in 24-hour clock. */ | |
563 | get_number (0, 23, 2); | |
564 | tm->tm_hour = val; | |
fa69dc9c | 565 | s.have_I = 0; |
ccadf7b5 UD |
566 | break; |
567 | case 'l': | |
568 | /* Match hour in 12-hour clock. GNU extension. */ | |
569 | case 'I': | |
570 | /* Match hour in 12-hour clock. */ | |
571 | get_number (1, 12, 2); | |
572 | tm->tm_hour = val % 12; | |
fa69dc9c | 573 | s.have_I = 1; |
ccadf7b5 UD |
574 | break; |
575 | case 'j': | |
576 | /* Match day number of year. */ | |
577 | get_number (1, 366, 3); | |
578 | tm->tm_yday = val - 1; | |
fa69dc9c | 579 | s.have_yday = 1; |
ccadf7b5 UD |
580 | break; |
581 | case 'm': | |
582 | /* Match number of month. */ | |
583 | get_number (1, 12, 2); | |
584 | tm->tm_mon = val - 1; | |
fa69dc9c UD |
585 | s.have_mon = 1; |
586 | s.want_xday = 1; | |
ccadf7b5 UD |
587 | break; |
588 | case 'M': | |
589 | /* Match minute. */ | |
590 | get_number (0, 59, 2); | |
591 | tm->tm_min = val; | |
592 | break; | |
593 | case 'n': | |
594 | case 't': | |
595 | /* Match any white space. */ | |
596 | while (ISSPACE (*rp)) | |
597 | ++rp; | |
598 | break; | |
599 | case 'p': | |
600 | /* Match locale's equivalent of AM/PM. */ | |
601 | #ifdef _NL_CURRENT | |
fa69dc9c | 602 | if (s.decided != raw) |
ccadf7b5 UD |
603 | { |
604 | if (match_string (_NL_CURRENT (LC_TIME, AM_STR), rp)) | |
605 | { | |
606 | if (strcmp (_NL_CURRENT (LC_TIME, AM_STR), HERE_AM_STR)) | |
fa69dc9c UD |
607 | s.decided = loc; |
608 | s.is_pm = 0; | |
ccadf7b5 UD |
609 | break; |
610 | } | |
611 | if (match_string (_NL_CURRENT (LC_TIME, PM_STR), rp)) | |
612 | { | |
613 | if (strcmp (_NL_CURRENT (LC_TIME, PM_STR), HERE_PM_STR)) | |
fa69dc9c UD |
614 | s.decided = loc; |
615 | s.is_pm = 1; | |
ccadf7b5 UD |
616 | break; |
617 | } | |
fa69dc9c | 618 | s.decided = raw; |
ccadf7b5 UD |
619 | } |
620 | #endif | |
621 | if (!match_string (HERE_AM_STR, rp)) | |
9fbdeb41 UD |
622 | { |
623 | if (match_string (HERE_PM_STR, rp)) | |
fa69dc9c | 624 | s.is_pm = 1; |
9fbdeb41 UD |
625 | else |
626 | return NULL; | |
9fbdeb41 | 627 | } |
fa69dc9c UD |
628 | else |
629 | s.is_pm = 0; | |
73102f50 | 630 | break; |
ccadf7b5 UD |
631 | case 'r': |
632 | #ifdef _NL_CURRENT | |
fa69dc9c | 633 | if (s.decided != raw) |
ccadf7b5 UD |
634 | { |
635 | if (!recursive (_NL_CURRENT (LC_TIME, T_FMT_AMPM))) | |
636 | { | |
fa69dc9c | 637 | if (s.decided == loc) |
ccadf7b5 UD |
638 | return NULL; |
639 | else | |
640 | rp = rp_backup; | |
641 | } | |
642 | else | |
643 | { | |
fa69dc9c | 644 | if (s.decided == not && |
ccadf7b5 UD |
645 | strcmp (_NL_CURRENT (LC_TIME, T_FMT_AMPM), |
646 | HERE_T_FMT_AMPM)) | |
fa69dc9c | 647 | s.decided = loc; |
ccadf7b5 UD |
648 | break; |
649 | } | |
fa69dc9c | 650 | s.decided = raw; |
ccadf7b5 UD |
651 | } |
652 | #endif | |
653 | if (!recursive (HERE_T_FMT_AMPM)) | |
654 | return NULL; | |
655 | break; | |
656 | case 'R': | |
657 | if (!recursive ("%H:%M")) | |
658 | return NULL; | |
659 | break; | |
660 | case 's': | |
661 | { | |
662 | /* The number of seconds may be very high so we cannot use | |
663 | the `get_number' macro. Instead read the number | |
664 | character for character and construct the result while | |
665 | doing this. */ | |
666 | time_t secs = 0; | |
667 | if (*rp < '0' || *rp > '9') | |
668 | /* We need at least one digit. */ | |
669 | return NULL; | |
670 | ||
671 | do | |
672 | { | |
673 | secs *= 10; | |
674 | secs += *rp++ - '0'; | |
675 | } | |
676 | while (*rp >= '0' && *rp <= '9'); | |
677 | ||
678 | if (localtime_r (&secs, tm) == NULL) | |
679 | /* Error in function. */ | |
680 | return NULL; | |
681 | } | |
682 | break; | |
683 | case 'S': | |
684 | get_number (0, 61, 2); | |
685 | tm->tm_sec = val; | |
686 | break; | |
687 | case 'X': | |
688 | #ifdef _NL_CURRENT | |
fa69dc9c | 689 | if (s.decided != raw) |
ccadf7b5 UD |
690 | { |
691 | if (!recursive (_NL_CURRENT (LC_TIME, T_FMT))) | |
692 | { | |
fa69dc9c | 693 | if (s.decided == loc) |
ccadf7b5 UD |
694 | return NULL; |
695 | else | |
696 | rp = rp_backup; | |
697 | } | |
698 | else | |
699 | { | |
700 | if (strcmp (_NL_CURRENT (LC_TIME, T_FMT), HERE_T_FMT)) | |
fa69dc9c | 701 | s.decided = loc; |
ccadf7b5 UD |
702 | break; |
703 | } | |
fa69dc9c | 704 | s.decided = raw; |
ccadf7b5 UD |
705 | } |
706 | #endif | |
707 | /* Fall through. */ | |
708 | case 'T': | |
709 | if (!recursive (HERE_T_FMT)) | |
710 | return NULL; | |
711 | break; | |
712 | case 'u': | |
713 | get_number (1, 7, 1); | |
714 | tm->tm_wday = val % 7; | |
fa69dc9c | 715 | s.have_wday = 1; |
ccadf7b5 UD |
716 | break; |
717 | case 'g': | |
718 | get_number (0, 99, 2); | |
719 | /* XXX This cannot determine any field in TM. */ | |
720 | break; | |
721 | case 'G': | |
722 | if (*rp < '0' || *rp > '9') | |
723 | return NULL; | |
724 | /* XXX Ignore the number since we would need some more | |
725 | information to compute a real date. */ | |
726 | do | |
727 | ++rp; | |
728 | while (*rp >= '0' && *rp <= '9'); | |
729 | break; | |
730 | case 'U': | |
731 | get_number (0, 53, 2); | |
fa69dc9c UD |
732 | s.week_no = val; |
733 | s.have_uweek = 1; | |
ccadf7b5 UD |
734 | break; |
735 | case 'W': | |
736 | get_number (0, 53, 2); | |
fa69dc9c UD |
737 | s.week_no = val; |
738 | s.have_wweek = 1; | |
ccadf7b5 UD |
739 | break; |
740 | case 'V': | |
741 | get_number (0, 53, 2); | |
742 | /* XXX This cannot determine any field in TM without some | |
743 | information. */ | |
744 | break; | |
745 | case 'w': | |
746 | /* Match number of weekday. */ | |
747 | get_number (0, 6, 1); | |
748 | tm->tm_wday = val; | |
fa69dc9c | 749 | s.have_wday = 1; |
ccadf7b5 UD |
750 | break; |
751 | case 'y': | |
752 | match_year_in_century: | |
753 | /* Match year within century. */ | |
754 | get_number (0, 99, 2); | |
755 | /* The "Year 2000: The Millennium Rollover" paper suggests that | |
756 | values in the range 69-99 refer to the twentieth century. */ | |
757 | tm->tm_year = val >= 69 ? val : val + 100; | |
758 | /* Indicate that we want to use the century, if specified. */ | |
fa69dc9c UD |
759 | s.want_century = 1; |
760 | s.want_xday = 1; | |
ccadf7b5 UD |
761 | break; |
762 | case 'Y': | |
763 | /* Match year including century number. */ | |
764 | get_number (0, 9999, 4); | |
765 | tm->tm_year = val - 1900; | |
fa69dc9c UD |
766 | s.want_century = 0; |
767 | s.want_xday = 1; | |
ccadf7b5 UD |
768 | break; |
769 | case 'Z': | |
ddc7e412 OB |
770 | /* Read timezone but perform no conversion. */ |
771 | while (ISSPACE (*rp)) | |
772 | rp++; | |
773 | while (!ISSPACE (*rp) && *rp != '\0') | |
774 | rp++; | |
ccadf7b5 | 775 | break; |
935f3e67 | 776 | case 'z': |
e952e1df VB |
777 | /* We recognize four formats: |
778 | 1. Two digits specify hours. | |
779 | 2. Four digits specify hours and minutes. | |
780 | 3. Two digits, ':', and two digits specify hours and minutes. | |
781 | 4. 'Z' is equivalent to +0000. */ | |
935f3e67 UD |
782 | { |
783 | val = 0; | |
ff491d14 | 784 | while (ISSPACE (*rp)) |
935f3e67 | 785 | ++rp; |
900f33e2 VB |
786 | if (*rp == 'Z') |
787 | { | |
788 | ++rp; | |
789 | tm->tm_gmtoff = 0; | |
790 | break; | |
791 | } | |
935f3e67 UD |
792 | if (*rp != '+' && *rp != '-') |
793 | return NULL; | |
794 | bool neg = *rp++ == '-'; | |
795 | int n = 0; | |
796 | while (n < 4 && *rp >= '0' && *rp <= '9') | |
797 | { | |
798 | val = val * 10 + *rp++ - '0'; | |
799 | ++n; | |
e952e1df VB |
800 | if (*rp == ':' && n == 2 && isdigit (*(rp + 1))) |
801 | ++rp; | |
935f3e67 UD |
802 | } |
803 | if (n == 2) | |
804 | val *= 100; | |
805 | else if (n != 4) | |
806 | /* Only two or four digits recognized. */ | |
807 | return NULL; | |
cccc95f2 JP |
808 | else if (val % 100 >= 60) |
809 | /* Minutes valid range is 0 through 59. */ | |
935f3e67 | 810 | return NULL; |
cccc95f2 | 811 | tm->tm_gmtoff = (val / 100) * 3600 + (val % 100) * 60; |
935f3e67 UD |
812 | if (neg) |
813 | tm->tm_gmtoff = -tm->tm_gmtoff; | |
814 | } | |
815 | break; | |
ccadf7b5 UD |
816 | case 'E': |
817 | #ifdef _NL_CURRENT | |
818 | switch (*fmt++) | |
819 | { | |
820 | case 'c': | |
821 | /* Match locale's alternate date and time format. */ | |
fa69dc9c | 822 | if (s.decided != raw) |
ccadf7b5 UD |
823 | { |
824 | const char *fmt = _NL_CURRENT (LC_TIME, ERA_D_T_FMT); | |
825 | ||
826 | if (*fmt == '\0') | |
827 | fmt = _NL_CURRENT (LC_TIME, D_T_FMT); | |
828 | ||
829 | if (!recursive (fmt)) | |
830 | { | |
fa69dc9c | 831 | if (s.decided == loc) |
ccadf7b5 UD |
832 | return NULL; |
833 | else | |
834 | rp = rp_backup; | |
835 | } | |
836 | else | |
837 | { | |
838 | if (strcmp (fmt, HERE_D_T_FMT)) | |
fa69dc9c UD |
839 | s.decided = loc; |
840 | s.want_xday = 1; | |
ccadf7b5 UD |
841 | break; |
842 | } | |
fa69dc9c | 843 | s.decided = raw; |
ccadf7b5 UD |
844 | } |
845 | /* The C locale has no era information, so use the | |
846 | normal representation. */ | |
847 | if (!recursive (HERE_D_T_FMT)) | |
848 | return NULL; | |
fa69dc9c | 849 | s.want_xday = 1; |
ccadf7b5 UD |
850 | break; |
851 | case 'C': | |
fa69dc9c | 852 | if (s.decided != raw) |
ccadf7b5 | 853 | { |
fa69dc9c | 854 | if (s.era_cnt >= 0) |
ccadf7b5 | 855 | { |
fa69dc9c | 856 | era = _nl_select_era_entry (s.era_cnt HELPER_LOCALE_ARG); |
ccadf7b5 UD |
857 | if (era != NULL && match_string (era->era_name, rp)) |
858 | { | |
fa69dc9c | 859 | s.decided = loc; |
ccadf7b5 UD |
860 | break; |
861 | } | |
862 | else | |
863 | return NULL; | |
864 | } | |
1750bc8d UD |
865 | |
866 | num_eras = _NL_CURRENT_WORD (LC_TIME, | |
867 | _NL_TIME_ERA_NUM_ENTRIES); | |
fa69dc9c UD |
868 | for (s.era_cnt = 0; s.era_cnt < (int) num_eras; |
869 | ++s.era_cnt, rp = rp_backup) | |
ccadf7b5 | 870 | { |
fa69dc9c | 871 | era = _nl_select_era_entry (s.era_cnt |
1750bc8d UD |
872 | HELPER_LOCALE_ARG); |
873 | if (era != NULL && match_string (era->era_name, rp)) | |
ccadf7b5 | 874 | { |
fa69dc9c | 875 | s.decided = loc; |
1750bc8d | 876 | break; |
ccadf7b5 | 877 | } |
ccadf7b5 | 878 | } |
fa69dc9c | 879 | if (s.era_cnt != (int) num_eras) |
1750bc8d UD |
880 | break; |
881 | ||
fa69dc9c UD |
882 | s.era_cnt = -1; |
883 | if (s.decided == loc) | |
1750bc8d | 884 | return NULL; |
ccadf7b5 | 885 | |
fa69dc9c | 886 | s.decided = raw; |
ccadf7b5 UD |
887 | } |
888 | /* The C locale has no era information, so use the | |
889 | normal representation. */ | |
890 | goto match_century; | |
891 | case 'y': | |
fa69dc9c | 892 | if (s.decided != raw) |
1750bc8d UD |
893 | { |
894 | get_number(0, 9999, 4); | |
895 | tm->tm_year = val; | |
fa69dc9c UD |
896 | s.want_era = 1; |
897 | s.want_xday = 1; | |
898 | s.want_century = 1; | |
ccadf7b5 | 899 | |
fa69dc9c | 900 | if (s.era_cnt >= 0) |
1750bc8d | 901 | { |
fa69dc9c | 902 | assert (s.decided == loc); |
1750bc8d | 903 | |
fa69dc9c | 904 | era = _nl_select_era_entry (s.era_cnt HELPER_LOCALE_ARG); |
1750bc8d UD |
905 | bool match = false; |
906 | if (era != NULL) | |
907 | { | |
908 | int delta = ((tm->tm_year - era->offset) | |
909 | * era->absolute_direction); | |
910 | match = (delta >= 0 | |
911 | && delta < (((int64_t) era->stop_date[0] | |
912 | - (int64_t) era->start_date[0]) | |
913 | * era->absolute_direction)); | |
914 | } | |
915 | if (! match) | |
916 | return NULL; | |
917 | ||
918 | break; | |
919 | } | |
920 | ||
921 | num_eras = _NL_CURRENT_WORD (LC_TIME, | |
922 | _NL_TIME_ERA_NUM_ENTRIES); | |
fa69dc9c | 923 | for (s.era_cnt = 0; s.era_cnt < (int) num_eras; ++s.era_cnt) |
1750bc8d | 924 | { |
fa69dc9c | 925 | era = _nl_select_era_entry (s.era_cnt |
1750bc8d UD |
926 | HELPER_LOCALE_ARG); |
927 | if (era != NULL) | |
928 | { | |
929 | int delta = ((tm->tm_year - era->offset) | |
930 | * era->absolute_direction); | |
931 | if (delta >= 0 | |
932 | && delta < (((int64_t) era->stop_date[0] | |
933 | - (int64_t) era->start_date[0]) | |
934 | * era->absolute_direction)) | |
935 | { | |
fa69dc9c | 936 | s.decided = loc; |
1750bc8d UD |
937 | break; |
938 | } | |
939 | } | |
940 | } | |
fa69dc9c | 941 | if (s.era_cnt != (int) num_eras) |
1750bc8d UD |
942 | break; |
943 | ||
fa69dc9c UD |
944 | s.era_cnt = -1; |
945 | if (s.decided == loc) | |
1750bc8d UD |
946 | return NULL; |
947 | ||
fa69dc9c | 948 | s.decided = raw; |
1750bc8d UD |
949 | } |
950 | ||
951 | goto match_year_in_century; | |
ccadf7b5 | 952 | case 'Y': |
fa69dc9c | 953 | if (s.decided != raw) |
ccadf7b5 UD |
954 | { |
955 | num_eras = _NL_CURRENT_WORD (LC_TIME, | |
956 | _NL_TIME_ERA_NUM_ENTRIES); | |
fa69dc9c UD |
957 | for (s.era_cnt = 0; s.era_cnt < (int) num_eras; |
958 | ++s.era_cnt, rp = rp_backup) | |
ccadf7b5 | 959 | { |
fa69dc9c | 960 | era = _nl_select_era_entry (s.era_cnt HELPER_LOCALE_ARG); |
ccadf7b5 UD |
961 | if (era != NULL && recursive (era->era_format)) |
962 | break; | |
963 | } | |
fa69dc9c | 964 | if (s.era_cnt == (int) num_eras) |
ccadf7b5 | 965 | { |
fa69dc9c UD |
966 | s.era_cnt = -1; |
967 | if (s.decided == loc) | |
ccadf7b5 UD |
968 | return NULL; |
969 | else | |
970 | rp = rp_backup; | |
971 | } | |
972 | else | |
973 | { | |
fa69dc9c | 974 | s.decided = loc; |
ccadf7b5 UD |
975 | break; |
976 | } | |
977 | ||
fa69dc9c | 978 | s.decided = raw; |
ccadf7b5 UD |
979 | } |
980 | get_number (0, 9999, 4); | |
981 | tm->tm_year = val - 1900; | |
fa69dc9c UD |
982 | s.want_century = 0; |
983 | s.want_xday = 1; | |
ccadf7b5 UD |
984 | break; |
985 | case 'x': | |
fa69dc9c | 986 | if (s.decided != raw) |
ccadf7b5 UD |
987 | { |
988 | const char *fmt = _NL_CURRENT (LC_TIME, ERA_D_FMT); | |
989 | ||
990 | if (*fmt == '\0') | |
991 | fmt = _NL_CURRENT (LC_TIME, D_FMT); | |
992 | ||
993 | if (!recursive (fmt)) | |
994 | { | |
fa69dc9c | 995 | if (s.decided == loc) |
ccadf7b5 UD |
996 | return NULL; |
997 | else | |
998 | rp = rp_backup; | |
999 | } | |
1000 | else | |
1001 | { | |
1002 | if (strcmp (fmt, HERE_D_FMT)) | |
fa69dc9c | 1003 | s.decided = loc; |
ccadf7b5 UD |
1004 | break; |
1005 | } | |
fa69dc9c | 1006 | s.decided = raw; |
ccadf7b5 UD |
1007 | } |
1008 | if (!recursive (HERE_D_FMT)) | |
1009 | return NULL; | |
1010 | break; | |
1011 | case 'X': | |
fa69dc9c | 1012 | if (s.decided != raw) |
ccadf7b5 UD |
1013 | { |
1014 | const char *fmt = _NL_CURRENT (LC_TIME, ERA_T_FMT); | |
1015 | ||
1016 | if (*fmt == '\0') | |
1017 | fmt = _NL_CURRENT (LC_TIME, T_FMT); | |
1018 | ||
1019 | if (!recursive (fmt)) | |
1020 | { | |
fa69dc9c | 1021 | if (s.decided == loc) |
ccadf7b5 UD |
1022 | return NULL; |
1023 | else | |
1024 | rp = rp_backup; | |
1025 | } | |
1026 | else | |
1027 | { | |
1028 | if (strcmp (fmt, HERE_T_FMT)) | |
fa69dc9c | 1029 | s.decided = loc; |
ccadf7b5 UD |
1030 | break; |
1031 | } | |
fa69dc9c | 1032 | s.decided = raw; |
ccadf7b5 UD |
1033 | } |
1034 | if (!recursive (HERE_T_FMT)) | |
1035 | return NULL; | |
1036 | break; | |
1037 | default: | |
1038 | return NULL; | |
1039 | } | |
1040 | break; | |
1041 | #else | |
1042 | /* We have no information about the era format. Just use | |
1043 | the normal format. */ | |
1044 | if (*fmt != 'c' && *fmt != 'C' && *fmt != 'y' && *fmt != 'Y' | |
1045 | && *fmt != 'x' && *fmt != 'X') | |
1046 | /* This is an illegal format. */ | |
1047 | return NULL; | |
1048 | ||
1049 | goto start_over; | |
1050 | #endif | |
1051 | case 'O': | |
1052 | switch (*fmt++) | |
1053 | { | |
761a585c | 1054 | case 'b': |
95cb863a | 1055 | case 'B': |
761a585c | 1056 | case 'h': |
95cb863a RL |
1057 | /* Match month name. Reprocess as plain 'B'. */ |
1058 | fmt--; | |
1059 | goto start_over; | |
ccadf7b5 UD |
1060 | case 'd': |
1061 | case 'e': | |
1062 | /* Match day of month using alternate numeric symbols. */ | |
1063 | get_alt_number (1, 31, 2); | |
1064 | tm->tm_mday = val; | |
fa69dc9c UD |
1065 | s.have_mday = 1; |
1066 | s.want_xday = 1; | |
ccadf7b5 UD |
1067 | break; |
1068 | case 'H': | |
1069 | /* Match hour in 24-hour clock using alternate numeric | |
1070 | symbols. */ | |
1071 | get_alt_number (0, 23, 2); | |
1072 | tm->tm_hour = val; | |
fa69dc9c | 1073 | s.have_I = 0; |
ccadf7b5 UD |
1074 | break; |
1075 | case 'I': | |
1076 | /* Match hour in 12-hour clock using alternate numeric | |
1077 | symbols. */ | |
1078 | get_alt_number (1, 12, 2); | |
1079 | tm->tm_hour = val % 12; | |
fa69dc9c | 1080 | s.have_I = 1; |
ccadf7b5 UD |
1081 | break; |
1082 | case 'm': | |
1083 | /* Match month using alternate numeric symbols. */ | |
1084 | get_alt_number (1, 12, 2); | |
1085 | tm->tm_mon = val - 1; | |
fa69dc9c UD |
1086 | s.have_mon = 1; |
1087 | s.want_xday = 1; | |
ccadf7b5 UD |
1088 | break; |
1089 | case 'M': | |
1090 | /* Match minutes using alternate numeric symbols. */ | |
1091 | get_alt_number (0, 59, 2); | |
1092 | tm->tm_min = val; | |
1093 | break; | |
1094 | case 'S': | |
1095 | /* Match seconds using alternate numeric symbols. */ | |
1096 | get_alt_number (0, 61, 2); | |
1097 | tm->tm_sec = val; | |
1098 | break; | |
1099 | case 'U': | |
1100 | get_alt_number (0, 53, 2); | |
fa69dc9c UD |
1101 | s.week_no = val; |
1102 | s.have_uweek = 1; | |
ccadf7b5 UD |
1103 | break; |
1104 | case 'W': | |
1105 | get_alt_number (0, 53, 2); | |
fa69dc9c UD |
1106 | s.week_no = val; |
1107 | s.have_wweek = 1; | |
ccadf7b5 UD |
1108 | break; |
1109 | case 'V': | |
1110 | get_alt_number (0, 53, 2); | |
1111 | /* XXX This cannot determine any field in TM without | |
1112 | further information. */ | |
1113 | break; | |
1114 | case 'w': | |
1115 | /* Match number of weekday using alternate numeric symbols. */ | |
1116 | get_alt_number (0, 6, 1); | |
1117 | tm->tm_wday = val; | |
fa69dc9c | 1118 | s.have_wday = 1; |
ccadf7b5 UD |
1119 | break; |
1120 | case 'y': | |
1121 | /* Match year within century using alternate numeric symbols. */ | |
1122 | get_alt_number (0, 99, 2); | |
1123 | tm->tm_year = val >= 69 ? val : val + 100; | |
fa69dc9c | 1124 | s.want_xday = 1; |
ccadf7b5 UD |
1125 | break; |
1126 | default: | |
1127 | return NULL; | |
1128 | } | |
1129 | break; | |
1130 | default: | |
1131 | return NULL; | |
1132 | } | |
1133 | } | |
1134 | ||
fa69dc9c UD |
1135 | if (statep != NULL) |
1136 | { | |
1137 | /* Recursive invocation, returning success, so | |
1138 | update parent's struct tm and state. */ | |
1139 | *(struct __strptime_state *) statep = s; | |
1140 | *tmp = tmb; | |
1141 | return (char *) rp; | |
1142 | } | |
1143 | ||
1144 | if (s.have_I && s.is_pm) | |
ccadf7b5 UD |
1145 | tm->tm_hour += 12; |
1146 | ||
fa69dc9c | 1147 | if (s.century != -1) |
ccadf7b5 | 1148 | { |
fa69dc9c UD |
1149 | if (s.want_century) |
1150 | tm->tm_year = tm->tm_year % 100 + (s.century - 19) * 100; | |
ccadf7b5 UD |
1151 | else |
1152 | /* Only the century, but not the year. Strange, but so be it. */ | |
fa69dc9c | 1153 | tm->tm_year = (s.century - 19) * 100; |
ccadf7b5 UD |
1154 | } |
1155 | ||
fa69dc9c | 1156 | if (s.era_cnt != -1) |
ccadf7b5 | 1157 | { |
fa69dc9c | 1158 | era = _nl_select_era_entry (s.era_cnt HELPER_LOCALE_ARG); |
ccadf7b5 UD |
1159 | if (era == NULL) |
1160 | return NULL; | |
fa69dc9c | 1161 | if (s.want_era) |
ccadf7b5 UD |
1162 | tm->tm_year = (era->start_date[0] |
1163 | + ((tm->tm_year - era->offset) | |
1164 | * era->absolute_direction)); | |
1165 | else | |
1166 | /* Era start year assumed. */ | |
1167 | tm->tm_year = era->start_date[0]; | |
1168 | } | |
1169 | else | |
fa69dc9c | 1170 | if (s.want_era) |
ccadf7b5 UD |
1171 | { |
1172 | /* No era found but we have seen an E modifier. Rectify some | |
1173 | values. */ | |
fa69dc9c | 1174 | if (s.want_century && s.century == -1 && tm->tm_year < 69) |
ccadf7b5 UD |
1175 | tm->tm_year += 100; |
1176 | } | |
1177 | ||
fa69dc9c | 1178 | if (s.want_xday && !s.have_wday) |
ccadf7b5 | 1179 | { |
fa69dc9c | 1180 | if ( !(s.have_mon && s.have_mday) && s.have_yday) |
ccadf7b5 UD |
1181 | { |
1182 | /* We don't have tm_mon and/or tm_mday, compute them. */ | |
1183 | int t_mon = 0; | |
1184 | while (__mon_yday[__isleap(1900 + tm->tm_year)][t_mon] <= tm->tm_yday) | |
1185 | t_mon++; | |
fa69dc9c | 1186 | if (!s.have_mon) |
ccadf7b5 | 1187 | tm->tm_mon = t_mon - 1; |
fa69dc9c | 1188 | if (!s.have_mday) |
ccadf7b5 UD |
1189 | tm->tm_mday = |
1190 | (tm->tm_yday | |
1191 | - __mon_yday[__isleap(1900 + tm->tm_year)][t_mon - 1] + 1); | |
fa69dc9c UD |
1192 | s.have_mon = 1; |
1193 | s.have_mday = 1; | |
ccadf7b5 | 1194 | } |
00458b5b | 1195 | /* Don't crash in day_of_the_week if tm_mon is uninitialized. */ |
fa69dc9c | 1196 | if (s.have_mon || (unsigned) tm->tm_mon <= 11) |
00458b5b | 1197 | day_of_the_week (tm); |
ccadf7b5 UD |
1198 | } |
1199 | ||
fa69dc9c | 1200 | if (s.want_xday && !s.have_yday && (s.have_mon || (unsigned) tm->tm_mon <= 11)) |
ccadf7b5 UD |
1201 | day_of_the_year (tm); |
1202 | ||
fa69dc9c | 1203 | if ((s.have_uweek || s.have_wweek) && s.have_wday) |
ccadf7b5 UD |
1204 | { |
1205 | int save_wday = tm->tm_wday; | |
1206 | int save_mday = tm->tm_mday; | |
1207 | int save_mon = tm->tm_mon; | |
fa69dc9c | 1208 | int w_offset = s.have_uweek ? 0 : 1; |
ccadf7b5 UD |
1209 | |
1210 | tm->tm_mday = 1; | |
1211 | tm->tm_mon = 0; | |
1212 | day_of_the_week (tm); | |
fa69dc9c | 1213 | if (s.have_mday) |
ccadf7b5 | 1214 | tm->tm_mday = save_mday; |
fa69dc9c | 1215 | if (s.have_mon) |
ccadf7b5 UD |
1216 | tm->tm_mon = save_mon; |
1217 | ||
fa69dc9c | 1218 | if (!s.have_yday) |
ccadf7b5 | 1219 | tm->tm_yday = ((7 - (tm->tm_wday - w_offset)) % 7 |
840e2943 AS |
1220 | + (s.week_no - 1) * 7 |
1221 | + (save_wday - w_offset + 7) % 7); | |
ccadf7b5 | 1222 | |
fa69dc9c | 1223 | if (!s.have_mday || !s.have_mon) |
ccadf7b5 UD |
1224 | { |
1225 | int t_mon = 0; | |
1226 | while (__mon_yday[__isleap(1900 + tm->tm_year)][t_mon] | |
1227 | <= tm->tm_yday) | |
1228 | t_mon++; | |
fa69dc9c | 1229 | if (!s.have_mon) |
ccadf7b5 | 1230 | tm->tm_mon = t_mon - 1; |
fa69dc9c | 1231 | if (!s.have_mday) |
ccadf7b5 UD |
1232 | tm->tm_mday = |
1233 | (tm->tm_yday | |
1234 | - __mon_yday[__isleap(1900 + tm->tm_year)][t_mon - 1] + 1); | |
1235 | } | |
1236 | ||
1237 | tm->tm_wday = save_wday; | |
1238 | } | |
1239 | ||
1240 | return (char *) rp; | |
1241 | } | |
1242 | ||
1243 | ||
1244 | char * | |
80d9be81 | 1245 | strptime (const char *buf, const char *format, struct tm *tm LOCALE_PARAM) |
ccadf7b5 | 1246 | { |
fa69dc9c | 1247 | return __strptime_internal (buf, format, tm, NULL LOCALE_ARG); |
ccadf7b5 UD |
1248 | } |
1249 | ||
1250 | #ifdef _LIBC | |
60f20c19 | 1251 | weak_alias (__strptime_l, strptime_l) |
ccadf7b5 | 1252 | #endif |