]>
Commit | Line | Data |
---|---|---|
04277e02 | 1 | /* Copyright (C) 2002-2019 Free Software Foundation, Inc. |
c4d6f155 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/>. */ | |
c4d6f155 | 17 | |
ccadf7b5 UD |
18 | #ifdef HAVE_CONFIG_H |
19 | # include <config.h> | |
20 | #endif | |
c4d6f155 | 21 | |
ccadf7b5 UD |
22 | #ifdef _LIBC |
23 | # define USE_IN_EXTENDED_LOCALE_MODEL 1 | |
24 | # define HAVE_LIMITS_H 1 | |
25 | # define HAVE_MBLEN 1 | |
26 | # define HAVE_MBRLEN 1 | |
27 | # define HAVE_STRUCT_ERA_ENTRY 1 | |
28 | # define HAVE_TM_GMTOFF 1 | |
29 | # define HAVE_TM_ZONE 1 | |
30 | # define HAVE_TZNAME 1 | |
31 | # define HAVE_TZSET 1 | |
d22f1fe2 | 32 | # define HAVE_STRFTIME 0 |
ccadf7b5 UD |
33 | # define MULTIBYTE_IS_FORMAT_SAFE 1 |
34 | # define STDC_HEADERS 1 | |
35 | # include "../locale/localeinfo.h" | |
36 | #endif | |
37 | ||
38 | #if defined emacs && !defined HAVE_BCOPY | |
39 | # define HAVE_MEMCPY 1 | |
40 | #endif | |
41 | ||
42 | #include <ctype.h> | |
43 | #include <sys/types.h> /* Some systems define `time_t' here. */ | |
44 | ||
45 | #ifdef TIME_WITH_SYS_TIME | |
46 | # include <sys/time.h> | |
47 | # include <time.h> | |
48 | #else | |
49 | # ifdef HAVE_SYS_TIME_H | |
50 | # include <sys/time.h> | |
51 | # else | |
52 | # include <time.h> | |
53 | # endif | |
54 | #endif | |
55 | #if HAVE_TZNAME | |
56 | extern char *tzname[]; | |
57 | #endif | |
58 | ||
59 | /* Do multibyte processing if multibytes are supported, unless | |
60 | multibyte sequences are safe in formats. Multibyte sequences are | |
61 | safe if they cannot contain byte sequences that look like format | |
62 | conversion specifications. The GNU C Library uses UTF8 multibyte | |
63 | encoding, which is safe for formats, but strftime.c can be used | |
64 | with other C libraries that use unsafe encodings. */ | |
65 | #define DO_MULTIBYTE (HAVE_MBLEN && ! MULTIBYTE_IS_FORMAT_SAFE) | |
66 | ||
67 | #if DO_MULTIBYTE | |
68 | # if HAVE_MBRLEN | |
69 | # include <wchar.h> | |
70 | # else | |
71 | /* Simulate mbrlen with mblen as best we can. */ | |
72 | # define mbstate_t int | |
73 | # define mbrlen(s, n, ps) mblen (s, n) | |
74 | # define mbsinit(ps) (*(ps) == 0) | |
75 | # endif | |
76 | static const mbstate_t mbstate_zero; | |
77 | #endif | |
78 | ||
79 | #if HAVE_LIMITS_H | |
80 | # include <limits.h> | |
81 | #endif | |
82 | ||
83 | #if STDC_HEADERS | |
84 | # include <stddef.h> | |
85 | # include <stdlib.h> | |
86 | # include <string.h> | |
800d6f9e | 87 | # include <stdbool.h> |
ccadf7b5 UD |
88 | #else |
89 | # ifndef HAVE_MEMCPY | |
90 | # define memcpy(d, s, n) bcopy ((s), (d), (n)) | |
91 | # endif | |
92 | #endif | |
93 | ||
94 | #ifdef COMPILE_WIDE | |
95 | # include <endian.h> | |
96 | # define CHAR_T wchar_t | |
97 | # define UCHAR_T unsigned int | |
98 | # define L_(Str) L##Str | |
99 | # define NLW(Sym) _NL_W##Sym | |
100 | ||
101 | # define MEMCPY(d, s, n) __wmemcpy (d, s, n) | |
102 | # define STRLEN(s) __wcslen (s) | |
103 | ||
104 | #else | |
105 | # define CHAR_T char | |
106 | # define UCHAR_T unsigned char | |
107 | # define L_(Str) Str | |
108 | # define NLW(Sym) Sym | |
761a585c | 109 | # define ABALTMON_1 _NL_ABALTMON_1 |
ccadf7b5 UD |
110 | |
111 | # if !defined STDC_HEADERS && !defined HAVE_MEMCPY | |
112 | # define MEMCPY(d, s, n) bcopy ((s), (d), (n)) | |
113 | # else | |
114 | # define MEMCPY(d, s, n) memcpy ((d), (s), (n)) | |
115 | # endif | |
116 | # define STRLEN(s) strlen (s) | |
117 | ||
118 | # ifdef _LIBC | |
119 | # define MEMPCPY(d, s, n) __mempcpy (d, s, n) | |
120 | # else | |
121 | # ifndef HAVE_MEMPCPY | |
122 | # define MEMPCPY(d, s, n) ((void *) ((char *) memcpy (d, s, n) + (n))) | |
123 | # endif | |
124 | # endif | |
125 | #endif | |
126 | ||
ccadf7b5 | 127 | #ifndef PTR |
c8a89e7d | 128 | # define PTR void * |
ccadf7b5 UD |
129 | #endif |
130 | ||
131 | #ifndef CHAR_BIT | |
132 | # define CHAR_BIT 8 | |
133 | #endif | |
134 | ||
135 | #ifndef NULL | |
136 | # define NULL 0 | |
137 | #endif | |
138 | ||
139 | #define TYPE_SIGNED(t) ((t) -1 < 0) | |
140 | ||
141 | /* Bound on length of the string representing an integer value of type t. | |
142 | Subtract one for the sign bit if t is signed; | |
143 | 302 / 1000 is log10 (2) rounded up; | |
144 | add one for integer division truncation; | |
145 | add one more for a minus sign if t is signed. */ | |
146 | #define INT_STRLEN_BOUND(t) \ | |
147 | ((sizeof (t) * CHAR_BIT - TYPE_SIGNED (t)) * 302 / 1000 + 1 + TYPE_SIGNED (t)) | |
148 | ||
149 | #define TM_YEAR_BASE 1900 | |
150 | ||
151 | #ifndef __isleap | |
152 | /* Nonzero if YEAR is a leap year (every 4 years, | |
153 | except every 100th isn't, and every 400th is). */ | |
154 | # define __isleap(year) \ | |
155 | ((year) % 4 == 0 && ((year) % 100 != 0 || (year) % 400 == 0)) | |
156 | #endif | |
157 | ||
158 | ||
159 | #ifdef _LIBC | |
160 | # define tzname __tzname | |
161 | # define tzset __tzset | |
162 | #endif | |
163 | ||
164 | #if !HAVE_TM_GMTOFF | |
165 | /* Portable standalone applications should supply a "time_r.h" that | |
166 | declares a POSIX-compliant localtime_r, for the benefit of older | |
167 | implementations that lack localtime_r or have a nonstandard one. | |
168 | Similarly for gmtime_r. See the gnulib time_r module for one way | |
169 | to implement this. */ | |
170 | # include "time_r.h" | |
171 | # undef __gmtime_r | |
172 | # undef __localtime_r | |
173 | # define __gmtime_r gmtime_r | |
174 | # define __localtime_r localtime_r | |
175 | #endif | |
176 | ||
177 | ||
178 | #if !defined memset && !defined HAVE_MEMSET && !defined _LIBC | |
179 | /* Some systems lack the `memset' function and we don't want to | |
180 | introduce additional dependencies. */ | |
181 | /* The SGI compiler reportedly barfs on the trailing null | |
182 | if we use a string constant as the initializer. 28 June 1997, rms. */ | |
183 | static const CHAR_T spaces[16] = /* " " */ | |
184 | { | |
185 | L_(' '),L_(' '),L_(' '),L_(' '),L_(' '),L_(' '),L_(' '),L_(' '), | |
186 | L_(' '),L_(' '),L_(' '),L_(' '),L_(' '),L_(' '),L_(' '),L_(' ') | |
187 | }; | |
188 | static const CHAR_T zeroes[16] = /* "0000000000000000" */ | |
189 | { | |
190 | L_('0'),L_('0'),L_('0'),L_('0'),L_('0'),L_('0'),L_('0'),L_('0'), | |
191 | L_('0'),L_('0'),L_('0'),L_('0'),L_('0'),L_('0'),L_('0'),L_('0') | |
192 | }; | |
193 | ||
194 | # define memset_space(P, Len) \ | |
195 | do { \ | |
196 | int _len = (Len); \ | |
197 | \ | |
198 | do \ | |
199 | { \ | |
200 | int _this = _len > 16 ? 16 : _len; \ | |
201 | (P) = MEMPCPY ((P), spaces, _this * sizeof (CHAR_T)); \ | |
202 | _len -= _this; \ | |
203 | } \ | |
204 | while (_len > 0); \ | |
205 | } while (0) | |
206 | ||
207 | # define memset_zero(P, Len) \ | |
208 | do { \ | |
209 | int _len = (Len); \ | |
210 | \ | |
211 | do \ | |
212 | { \ | |
213 | int _this = _len > 16 ? 16 : _len; \ | |
214 | (P) = MEMPCPY ((P), zeroes, _this * sizeof (CHAR_T)); \ | |
215 | _len -= _this; \ | |
216 | } \ | |
217 | while (_len > 0); \ | |
218 | } while (0) | |
219 | #else | |
220 | # ifdef COMPILE_WIDE | |
221 | # define memset_space(P, Len) (wmemset ((P), L' ', (Len)), (P) += (Len)) | |
222 | # define memset_zero(P, Len) (wmemset ((P), L'0', (Len)), (P) += (Len)) | |
223 | # else | |
224 | # define memset_space(P, Len) (memset ((P), ' ', (Len)), (P) += (Len)) | |
225 | # define memset_zero(P, Len) (memset ((P), '0', (Len)), (P) += (Len)) | |
226 | # endif | |
227 | #endif | |
228 | ||
229 | #define add(n, f) \ | |
230 | do \ | |
231 | { \ | |
232 | int _n = (n); \ | |
233 | int _delta = width - _n; \ | |
234 | int _incr = _n + (_delta > 0 ? _delta : 0); \ | |
235 | if ((size_t) _incr >= maxsize - i) \ | |
236 | return 0; \ | |
237 | if (p) \ | |
238 | { \ | |
239 | if (_delta > 0) \ | |
240 | { \ | |
241 | if (pad == L_('0')) \ | |
242 | memset_zero (p, _delta); \ | |
243 | else \ | |
244 | memset_space (p, _delta); \ | |
245 | } \ | |
246 | f; \ | |
247 | p += _n; \ | |
248 | } \ | |
249 | i += _incr; \ | |
250 | } while (0) | |
251 | ||
252 | #define cpy(n, s) \ | |
253 | add ((n), \ | |
254 | if (to_lowcase) \ | |
255 | memcpy_lowcase (p, (s), _n LOCALE_ARG); \ | |
256 | else if (to_uppcase) \ | |
257 | memcpy_uppcase (p, (s), _n LOCALE_ARG); \ | |
258 | else \ | |
259 | MEMCPY ((PTR) p, (const PTR) (s), _n)) | |
260 | ||
261 | #ifdef COMPILE_WIDE | |
262 | # ifndef USE_IN_EXTENDED_LOCALE_MODEL | |
263 | # undef __mbsrtowcs_l | |
264 | # define __mbsrtowcs_l(d, s, l, st, loc) __mbsrtowcs (d, s, l, st) | |
265 | # endif | |
266 | # define widen(os, ws, l) \ | |
267 | { \ | |
268 | mbstate_t __st; \ | |
269 | const char *__s = os; \ | |
270 | memset (&__st, '\0', sizeof (__st)); \ | |
271 | l = __mbsrtowcs_l (NULL, &__s, 0, &__st, loc); \ | |
272 | ws = alloca ((l + 1) * sizeof (wchar_t)); \ | |
273 | (void) __mbsrtowcs_l (ws, &__s, l, &__st, loc); \ | |
274 | } | |
275 | #endif | |
276 | ||
277 | ||
278 | #if defined _LIBC && defined USE_IN_EXTENDED_LOCALE_MODEL | |
279 | /* We use this code also for the extended locale handling where the | |
280 | function gets as an additional argument the locale which has to be | |
281 | used. To access the values we have to redefine the _NL_CURRENT | |
282 | macro. */ | |
283 | # define strftime __strftime_l | |
284 | # define wcsftime __wcsftime_l | |
285 | # undef _NL_CURRENT | |
286 | # define _NL_CURRENT(category, item) \ | |
287 | (current->values[_NL_ITEM_INDEX (item)].string) | |
af85385f | 288 | # define LOCALE_PARAM , locale_t loc |
ccadf7b5 | 289 | # define LOCALE_ARG , loc |
ccadf7b5 UD |
290 | # define HELPER_LOCALE_ARG , current |
291 | #else | |
292 | # define LOCALE_PARAM | |
ccadf7b5 | 293 | # define LOCALE_ARG |
ccadf7b5 UD |
294 | # ifdef _LIBC |
295 | # define HELPER_LOCALE_ARG , _NL_CURRENT_DATA (LC_TIME) | |
296 | # else | |
297 | # define HELPER_LOCALE_ARG | |
298 | # endif | |
299 | #endif | |
300 | ||
301 | #ifdef COMPILE_WIDE | |
302 | # ifdef USE_IN_EXTENDED_LOCALE_MODEL | |
303 | # define TOUPPER(Ch, L) __towupper_l (Ch, L) | |
304 | # define TOLOWER(Ch, L) __towlower_l (Ch, L) | |
305 | # else | |
306 | # define TOUPPER(Ch, L) towupper (Ch) | |
307 | # define TOLOWER(Ch, L) towlower (Ch) | |
308 | # endif | |
309 | #else | |
310 | # ifdef _LIBC | |
311 | # ifdef USE_IN_EXTENDED_LOCALE_MODEL | |
312 | # define TOUPPER(Ch, L) __toupper_l (Ch, L) | |
313 | # define TOLOWER(Ch, L) __tolower_l (Ch, L) | |
314 | # else | |
315 | # define TOUPPER(Ch, L) toupper (Ch) | |
316 | # define TOLOWER(Ch, L) tolower (Ch) | |
317 | # endif | |
318 | # else | |
319 | # define TOUPPER(Ch, L) (islower (Ch) ? toupper (Ch) : (Ch)) | |
320 | # define TOLOWER(Ch, L) (isupper (Ch) ? tolower (Ch) : (Ch)) | |
321 | # endif | |
322 | #endif | |
323 | /* We don't use `isdigit' here since the locale dependent | |
324 | interpretation is not what we want here. We only need to accept | |
325 | the arabic digits in the ASCII range. One day there is perhaps a | |
326 | more reliable way to accept other sets of digits. */ | |
327 | #define ISDIGIT(Ch) ((unsigned int) (Ch) - L_('0') <= 9) | |
328 | ||
79937577 | 329 | static CHAR_T *memcpy_lowcase (CHAR_T *dest, const CHAR_T *src, |
80d9be81 | 330 | size_t len LOCALE_PARAM) __THROW; |
ccadf7b5 UD |
331 | |
332 | static CHAR_T * | |
80d9be81 | 333 | memcpy_lowcase (CHAR_T *dest, const CHAR_T *src, size_t len LOCALE_PARAM) |
ccadf7b5 UD |
334 | { |
335 | while (len-- > 0) | |
336 | dest[len] = TOLOWER ((UCHAR_T) src[len], loc); | |
337 | return dest; | |
338 | } | |
339 | ||
79937577 | 340 | static CHAR_T *memcpy_uppcase (CHAR_T *dest, const CHAR_T *src, |
80d9be81 | 341 | size_t len LOCALE_PARAM) __THROW; |
ccadf7b5 UD |
342 | |
343 | static CHAR_T * | |
80d9be81 | 344 | memcpy_uppcase (CHAR_T *dest, const CHAR_T *src, size_t len LOCALE_PARAM) |
ccadf7b5 UD |
345 | { |
346 | while (len-- > 0) | |
347 | dest[len] = TOUPPER ((UCHAR_T) src[len], loc); | |
348 | return dest; | |
349 | } | |
350 | ||
351 | ||
352 | #if ! HAVE_TM_GMTOFF | |
353 | /* Yield the difference between *A and *B, | |
354 | measured in seconds, ignoring leap seconds. */ | |
355 | # define tm_diff ftime_tm_diff | |
79937577 | 356 | static int tm_diff (const struct tm *, const struct tm *) __THROW; |
ccadf7b5 | 357 | static int |
9d46370c | 358 | tm_diff (const struct tm *a, const struct tm *b) |
ccadf7b5 UD |
359 | { |
360 | /* Compute intervening leap days correctly even if year is negative. | |
361 | Take care to avoid int overflow in leap day calculations, | |
362 | but it's OK to assume that A and B are close to each other. */ | |
363 | int a4 = (a->tm_year >> 2) + (TM_YEAR_BASE >> 2) - ! (a->tm_year & 3); | |
364 | int b4 = (b->tm_year >> 2) + (TM_YEAR_BASE >> 2) - ! (b->tm_year & 3); | |
365 | int a100 = a4 / 25 - (a4 % 25 < 0); | |
366 | int b100 = b4 / 25 - (b4 % 25 < 0); | |
367 | int a400 = a100 >> 2; | |
368 | int b400 = b100 >> 2; | |
369 | int intervening_leap_days = (a4 - b4) - (a100 - b100) + (a400 - b400); | |
370 | int years = a->tm_year - b->tm_year; | |
371 | int days = (365 * years + intervening_leap_days | |
372 | + (a->tm_yday - b->tm_yday)); | |
373 | return (60 * (60 * (24 * days + (a->tm_hour - b->tm_hour)) | |
374 | + (a->tm_min - b->tm_min)) | |
375 | + (a->tm_sec - b->tm_sec)); | |
376 | } | |
377 | #endif /* ! HAVE_TM_GMTOFF */ | |
378 | ||
379 | ||
380 | ||
381 | /* The number of days from the first day of the first ISO week of this | |
382 | year to the year day YDAY with week day WDAY. ISO weeks start on | |
383 | Monday; the first ISO week has the year's first Thursday. YDAY may | |
384 | be as small as YDAY_MINIMUM. */ | |
385 | #define ISO_WEEK_START_WDAY 1 /* Monday */ | |
386 | #define ISO_WEEK1_WDAY 4 /* Thursday */ | |
387 | #define YDAY_MINIMUM (-366) | |
79937577 | 388 | static int iso_week_days (int, int) __THROW; |
ccadf7b5 UD |
389 | #ifdef __GNUC__ |
390 | __inline__ | |
391 | #endif | |
392 | static int | |
9d46370c | 393 | iso_week_days (int yday, int wday) |
ccadf7b5 UD |
394 | { |
395 | /* Add enough to the first operand of % to make it nonnegative. */ | |
396 | int big_enough_multiple_of_7 = (-YDAY_MINIMUM / 7 + 2) * 7; | |
397 | return (yday | |
398 | - (yday - wday + ISO_WEEK1_WDAY + big_enough_multiple_of_7) % 7 | |
399 | + ISO_WEEK1_WDAY - ISO_WEEK_START_WDAY); | |
400 | } | |
401 | ||
402 | ||
403 | #if !(defined _NL_CURRENT || HAVE_STRFTIME) | |
404 | static CHAR_T const weekday_name[][10] = | |
405 | { | |
406 | L_("Sunday"), L_("Monday"), L_("Tuesday"), L_("Wednesday"), | |
407 | L_("Thursday"), L_("Friday"), L_("Saturday") | |
408 | }; | |
409 | static CHAR_T const month_name[][10] = | |
410 | { | |
411 | L_("January"), L_("February"), L_("March"), L_("April"), L_("May"), | |
412 | L_("June"), L_("July"), L_("August"), L_("September"), L_("October"), | |
413 | L_("November"), L_("December") | |
414 | }; | |
415 | #endif | |
416 | ||
417 | ||
418 | #ifdef emacs | |
419 | # define my_strftime emacs_strftimeu | |
420 | # define ut_argument , ut | |
80d9be81 | 421 | # define ut_argument_spec , int ut |
ccadf7b5 UD |
422 | #else |
423 | # ifdef COMPILE_WIDE | |
424 | # define my_strftime wcsftime | |
425 | # define nl_get_alt_digit _nl_get_walt_digit | |
426 | # else | |
427 | # define my_strftime strftime | |
428 | # define nl_get_alt_digit _nl_get_alt_digit | |
429 | # endif | |
430 | # define ut_argument | |
431 | # define ut_argument_spec | |
ccadf7b5 UD |
432 | /* We don't have this information in general. */ |
433 | # define ut 0 | |
434 | #endif | |
435 | ||
800d6f9e | 436 | static size_t __strftime_internal (CHAR_T *, size_t, const CHAR_T *, |
32f600a2 | 437 | const struct tm *, int, bool * |
80d9be81 JM |
438 | ut_argument_spec |
439 | LOCALE_PARAM) __THROW; | |
ccadf7b5 UD |
440 | |
441 | /* Write information from TP into S according to the format | |
442 | string FORMAT, writing no more that MAXSIZE characters | |
443 | (including the terminating '\0') and returning number of | |
444 | characters written. If S is NULL, nothing will be written | |
445 | anywhere, so to determine how many characters would be | |
446 | written, use NULL for S and (size_t) UINT_MAX for MAXSIZE. */ | |
800d6f9e | 447 | |
ccadf7b5 | 448 | size_t |
80d9be81 JM |
449 | my_strftime (CHAR_T *s, size_t maxsize, const CHAR_T *format, |
450 | const struct tm *tp ut_argument_spec LOCALE_PARAM) | |
800d6f9e UD |
451 | { |
452 | #if !defined _LIBC && HAVE_TZNAME && HAVE_TZSET | |
453 | /* Solaris 2.5 tzset sometimes modifies the storage returned by localtime. | |
454 | Work around this bug by copying *tp before it might be munged. */ | |
455 | struct tm tmcopy; | |
456 | tmcopy = *tp; | |
457 | tp = &tmcopy; | |
458 | #endif | |
5bcc6c0f | 459 | bool tzset_called = false; |
32f600a2 | 460 | return __strftime_internal (s, maxsize, format, tp, 0, &tzset_called |
800d6f9e UD |
461 | ut_argument LOCALE_ARG); |
462 | } | |
463 | #ifdef _LIBC | |
464 | libc_hidden_def (my_strftime) | |
465 | #endif | |
466 | ||
467 | static size_t | |
80d9be81 | 468 | __strftime_internal (CHAR_T *s, size_t maxsize, const CHAR_T *format, |
32f600a2 | 469 | const struct tm *tp, int yr_spec, bool *tzset_called |
80d9be81 | 470 | ut_argument_spec LOCALE_PARAM) |
ccadf7b5 UD |
471 | { |
472 | #if defined _LIBC && defined USE_IN_EXTENDED_LOCALE_MODEL | |
f095bb72 | 473 | struct __locale_data *const current = loc->__locales[LC_TIME]; |
ccadf7b5 UD |
474 | #endif |
475 | ||
476 | int hour12 = tp->tm_hour; | |
477 | #ifdef _NL_CURRENT | |
478 | /* We cannot make the following values variables since we must delay | |
479 | the evaluation of these values until really needed since some | |
480 | expressions might not be valid in every situation. The `struct tm' | |
481 | might be generated by a strptime() call that initialized | |
482 | only a few elements. Dereference the pointers only if the format | |
483 | requires this. Then it is ok to fail if the pointers are invalid. */ | |
484 | # define a_wkday \ | |
d36c75fc PP |
485 | ((const CHAR_T *) (tp->tm_wday < 0 || tp->tm_wday > 6 \ |
486 | ? "?" : _NL_CURRENT (LC_TIME, NLW(ABDAY_1) + tp->tm_wday))) | |
ccadf7b5 | 487 | # define f_wkday \ |
d36c75fc PP |
488 | ((const CHAR_T *) (tp->tm_wday < 0 || tp->tm_wday > 6 \ |
489 | ? "?" : _NL_CURRENT (LC_TIME, NLW(DAY_1) + tp->tm_wday))) | |
ccadf7b5 | 490 | # define a_month \ |
d36c75fc PP |
491 | ((const CHAR_T *) (tp->tm_mon < 0 || tp->tm_mon > 11 \ |
492 | ? "?" : _NL_CURRENT (LC_TIME, NLW(ABMON_1) + tp->tm_mon))) | |
ccadf7b5 | 493 | # define f_month \ |
d36c75fc PP |
494 | ((const CHAR_T *) (tp->tm_mon < 0 || tp->tm_mon > 11 \ |
495 | ? "?" : _NL_CURRENT (LC_TIME, NLW(MON_1) + tp->tm_mon))) | |
761a585c RL |
496 | # define a_altmonth \ |
497 | ((const CHAR_T *) (tp->tm_mon < 0 || tp->tm_mon > 11 \ | |
498 | ? "?" : _NL_CURRENT (LC_TIME, NLW(ABALTMON_1) + tp->tm_mon))) | |
95cb863a RL |
499 | # define f_altmonth \ |
500 | ((const CHAR_T *) (tp->tm_mon < 0 || tp->tm_mon > 11 \ | |
501 | ? "?" : _NL_CURRENT (LC_TIME, NLW(ALTMON_1) + tp->tm_mon))) | |
ccadf7b5 UD |
502 | # define ampm \ |
503 | ((const CHAR_T *) _NL_CURRENT (LC_TIME, tp->tm_hour > 11 \ | |
504 | ? NLW(PM_STR) : NLW(AM_STR))) | |
505 | ||
506 | # define aw_len STRLEN (a_wkday) | |
507 | # define am_len STRLEN (a_month) | |
761a585c | 508 | # define aam_len STRLEN (a_altmonth) |
ccadf7b5 UD |
509 | # define ap_len STRLEN (ampm) |
510 | #else | |
511 | # if !HAVE_STRFTIME | |
d36c75fc PP |
512 | # define f_wkday (tp->tm_wday < 0 || tp->tm_wday > 6 \ |
513 | ? "?" : weekday_name[tp->tm_wday]) | |
514 | # define f_month (tp->tm_mon < 0 || tp->tm_mon > 11 \ | |
515 | ? "?" : month_name[tp->tm_mon]) | |
ccadf7b5 UD |
516 | # define a_wkday f_wkday |
517 | # define a_month f_month | |
761a585c | 518 | # define a_altmonth a_month |
95cb863a | 519 | # define f_altmonth f_month |
ccadf7b5 UD |
520 | # define ampm (L_("AMPM") + 2 * (tp->tm_hour > 11)) |
521 | ||
522 | size_t aw_len = 3; | |
523 | size_t am_len = 3; | |
761a585c | 524 | size_t aam_len = 3; |
ccadf7b5 UD |
525 | size_t ap_len = 2; |
526 | # endif | |
527 | #endif | |
528 | const char *zone; | |
529 | size_t i = 0; | |
530 | CHAR_T *p = s; | |
531 | const CHAR_T *f; | |
532 | #if DO_MULTIBYTE && !defined COMPILE_WIDE | |
533 | const char *format_end = NULL; | |
534 | #endif | |
535 | ||
536 | zone = NULL; | |
537 | #if HAVE_TM_ZONE | |
538 | /* The POSIX test suite assumes that setting | |
539 | the environment variable TZ to a new value before calling strftime() | |
540 | will influence the result (the %Z format) even if the information in | |
541 | TP is computed with a totally different time zone. | |
542 | This is bogus: though POSIX allows bad behavior like this, | |
543 | POSIX does not require it. Do the right thing instead. */ | |
544 | zone = (const char *) tp->tm_zone; | |
545 | #endif | |
546 | #if HAVE_TZNAME | |
547 | if (ut) | |
548 | { | |
549 | if (! (zone && *zone)) | |
550 | zone = "GMT"; | |
551 | } | |
ccadf7b5 UD |
552 | #endif |
553 | ||
554 | if (hour12 > 12) | |
555 | hour12 -= 12; | |
556 | else | |
557 | if (hour12 == 0) | |
558 | hour12 = 12; | |
559 | ||
560 | for (f = format; *f != '\0'; ++f) | |
561 | { | |
562 | int pad = 0; /* Padding for number ('-', '_', or 0). */ | |
563 | int modifier; /* Field modifier ('E', 'O', or 0). */ | |
564 | int digits; /* Max digits for numeric format. */ | |
fb25b135 | 565 | int number_value; /* Numeric value to be printed. */ |
ccadf7b5 UD |
566 | int negative_number; /* 1 if the number is negative. */ |
567 | const CHAR_T *subfmt; | |
568 | CHAR_T *bufp; | |
569 | CHAR_T buf[1 + (sizeof (int) < sizeof (time_t) | |
570 | ? INT_STRLEN_BOUND (time_t) | |
571 | : INT_STRLEN_BOUND (int))]; | |
572 | int width = -1; | |
573 | int to_lowcase = 0; | |
574 | int to_uppcase = 0; | |
575 | int change_case = 0; | |
576 | int format_char; | |
577 | ||
578 | #if DO_MULTIBYTE && !defined COMPILE_WIDE | |
579 | switch (*f) | |
580 | { | |
581 | case L_('%'): | |
582 | break; | |
583 | ||
584 | case L_('\b'): case L_('\t'): case L_('\n'): | |
585 | case L_('\v'): case L_('\f'): case L_('\r'): | |
586 | case L_(' '): case L_('!'): case L_('"'): case L_('#'): case L_('&'): | |
587 | case L_('\''): case L_('('): case L_(')'): case L_('*'): case L_('+'): | |
588 | case L_(','): case L_('-'): case L_('.'): case L_('/'): case L_('0'): | |
589 | case L_('1'): case L_('2'): case L_('3'): case L_('4'): case L_('5'): | |
590 | case L_('6'): case L_('7'): case L_('8'): case L_('9'): case L_(':'): | |
591 | case L_(';'): case L_('<'): case L_('='): case L_('>'): case L_('?'): | |
592 | case L_('A'): case L_('B'): case L_('C'): case L_('D'): case L_('E'): | |
593 | case L_('F'): case L_('G'): case L_('H'): case L_('I'): case L_('J'): | |
594 | case L_('K'): case L_('L'): case L_('M'): case L_('N'): case L_('O'): | |
595 | case L_('P'): case L_('Q'): case L_('R'): case L_('S'): case L_('T'): | |
596 | case L_('U'): case L_('V'): case L_('W'): case L_('X'): case L_('Y'): | |
597 | case L_('Z'): case L_('['): case L_('\\'): case L_(']'): case L_('^'): | |
598 | case L_('_'): case L_('a'): case L_('b'): case L_('c'): case L_('d'): | |
599 | case L_('e'): case L_('f'): case L_('g'): case L_('h'): case L_('i'): | |
600 | case L_('j'): case L_('k'): case L_('l'): case L_('m'): case L_('n'): | |
601 | case L_('o'): case L_('p'): case L_('q'): case L_('r'): case L_('s'): | |
602 | case L_('t'): case L_('u'): case L_('v'): case L_('w'): case L_('x'): | |
603 | case L_('y'): case L_('z'): case L_('{'): case L_('|'): case L_('}'): | |
604 | case L_('~'): | |
605 | /* The C Standard requires these 98 characters (plus '%') to | |
606 | be in the basic execution character set. None of these | |
607 | characters can start a multibyte sequence, so they need | |
608 | not be analyzed further. */ | |
609 | add (1, *p = *f); | |
610 | continue; | |
611 | ||
612 | default: | |
613 | /* Copy this multibyte sequence until we reach its end, find | |
614 | an error, or come back to the initial shift state. */ | |
615 | { | |
616 | mbstate_t mbstate = mbstate_zero; | |
617 | size_t len = 0; | |
618 | size_t fsize; | |
619 | ||
620 | if (! format_end) | |
621 | format_end = f + strlen (f) + 1; | |
622 | fsize = format_end - f; | |
623 | ||
624 | do | |
625 | { | |
626 | size_t bytes = mbrlen (f + len, fsize - len, &mbstate); | |
627 | ||
628 | if (bytes == 0) | |
629 | break; | |
630 | ||
631 | if (bytes == (size_t) -2) | |
632 | { | |
633 | len += strlen (f + len); | |
634 | break; | |
635 | } | |
636 | ||
637 | if (bytes == (size_t) -1) | |
638 | { | |
639 | len++; | |
640 | break; | |
641 | } | |
642 | ||
643 | len += bytes; | |
644 | } | |
645 | while (! mbsinit (&mbstate)); | |
646 | ||
647 | cpy (len, f); | |
648 | f += len - 1; | |
649 | continue; | |
650 | } | |
651 | } | |
652 | ||
653 | #else /* ! DO_MULTIBYTE */ | |
654 | ||
655 | /* Either multibyte encodings are not supported, they are | |
656 | safe for formats, so any non-'%' byte can be copied through, | |
657 | or this is the wide character version. */ | |
658 | if (*f != L_('%')) | |
659 | { | |
660 | add (1, *p = *f); | |
661 | continue; | |
662 | } | |
663 | ||
664 | #endif /* ! DO_MULTIBYTE */ | |
665 | ||
666 | /* Check for flags that can modify a format. */ | |
667 | while (1) | |
668 | { | |
669 | switch (*++f) | |
670 | { | |
671 | /* This influences the number formats. */ | |
672 | case L_('_'): | |
673 | case L_('-'): | |
674 | case L_('0'): | |
675 | pad = *f; | |
676 | continue; | |
677 | ||
678 | /* This changes textual output. */ | |
679 | case L_('^'): | |
680 | to_uppcase = 1; | |
681 | continue; | |
682 | case L_('#'): | |
683 | change_case = 1; | |
684 | continue; | |
685 | ||
686 | default: | |
687 | break; | |
688 | } | |
689 | break; | |
690 | } | |
691 | ||
692 | /* As a GNU extension we allow to specify the field width. */ | |
693 | if (ISDIGIT (*f)) | |
694 | { | |
695 | width = 0; | |
696 | do | |
697 | { | |
698 | if (width > INT_MAX / 10 | |
699 | || (width == INT_MAX / 10 && *f - L_('0') > INT_MAX % 10)) | |
700 | /* Avoid overflow. */ | |
701 | width = INT_MAX; | |
702 | else | |
703 | { | |
704 | width *= 10; | |
705 | width += *f - L_('0'); | |
706 | } | |
707 | ++f; | |
708 | } | |
709 | while (ISDIGIT (*f)); | |
710 | } | |
711 | ||
712 | /* Check for modifiers. */ | |
713 | switch (*f) | |
714 | { | |
715 | case L_('E'): | |
716 | case L_('O'): | |
717 | modifier = *f++; | |
718 | break; | |
719 | ||
720 | default: | |
721 | modifier = 0; | |
722 | break; | |
723 | } | |
724 | ||
725 | /* Now do the specified format. */ | |
726 | format_char = *f; | |
727 | switch (format_char) | |
728 | { | |
e4043b84 JM |
729 | #define DO_NUMBER(d, v) \ |
730 | do \ | |
731 | { \ | |
732 | digits = d > width ? d : width; \ | |
733 | number_value = v; \ | |
734 | goto do_number; \ | |
735 | } \ | |
736 | while (0) | |
737 | #define DO_NUMBER_SPACEPAD(d, v) \ | |
738 | do \ | |
739 | { \ | |
740 | digits = d > width ? d : width; \ | |
741 | number_value = v; \ | |
742 | goto do_number_spacepad; \ | |
743 | } \ | |
744 | while (0) | |
ccadf7b5 UD |
745 | |
746 | case L_('%'): | |
747 | if (modifier != 0) | |
748 | goto bad_format; | |
749 | add (1, *p = *f); | |
750 | break; | |
751 | ||
752 | case L_('a'): | |
753 | if (modifier != 0) | |
754 | goto bad_format; | |
755 | if (change_case) | |
756 | { | |
757 | to_uppcase = 1; | |
758 | to_lowcase = 0; | |
759 | } | |
760 | #if defined _NL_CURRENT || !HAVE_STRFTIME | |
761 | cpy (aw_len, a_wkday); | |
762 | break; | |
763 | #else | |
764 | goto underlying_strftime; | |
765 | #endif | |
766 | ||
767 | case 'A': | |
768 | if (modifier != 0) | |
769 | goto bad_format; | |
770 | if (change_case) | |
771 | { | |
772 | to_uppcase = 1; | |
773 | to_lowcase = 0; | |
774 | } | |
775 | #if defined _NL_CURRENT || !HAVE_STRFTIME | |
776 | cpy (STRLEN (f_wkday), f_wkday); | |
777 | break; | |
778 | #else | |
779 | goto underlying_strftime; | |
780 | #endif | |
781 | ||
782 | case L_('b'): | |
783 | case L_('h'): | |
784 | if (change_case) | |
785 | { | |
786 | to_uppcase = 1; | |
787 | to_lowcase = 0; | |
788 | } | |
761a585c | 789 | if (modifier == L_('E')) |
ccadf7b5 UD |
790 | goto bad_format; |
791 | #if defined _NL_CURRENT || !HAVE_STRFTIME | |
761a585c RL |
792 | if (modifier == L_('O')) |
793 | cpy (aam_len, a_altmonth); | |
794 | else | |
795 | cpy (am_len, a_month); | |
ccadf7b5 UD |
796 | break; |
797 | #else | |
798 | goto underlying_strftime; | |
799 | #endif | |
800 | ||
801 | case L_('B'): | |
95cb863a | 802 | if (modifier == L_('E')) |
ccadf7b5 UD |
803 | goto bad_format; |
804 | if (change_case) | |
805 | { | |
806 | to_uppcase = 1; | |
807 | to_lowcase = 0; | |
808 | } | |
809 | #if defined _NL_CURRENT || !HAVE_STRFTIME | |
95cb863a RL |
810 | if (modifier == L_('O')) |
811 | cpy (STRLEN (f_altmonth), f_altmonth); | |
812 | else | |
813 | cpy (STRLEN (f_month), f_month); | |
ccadf7b5 UD |
814 | break; |
815 | #else | |
816 | goto underlying_strftime; | |
817 | #endif | |
818 | ||
819 | case L_('c'): | |
820 | if (modifier == L_('O')) | |
821 | goto bad_format; | |
822 | #ifdef _NL_CURRENT | |
5cbbf01e | 823 | if (! (modifier == L_('E') |
ccadf7b5 UD |
824 | && (*(subfmt = |
825 | (const CHAR_T *) _NL_CURRENT (LC_TIME, | |
826 | NLW(ERA_D_T_FMT))) | |
827 | != '\0'))) | |
828 | subfmt = (const CHAR_T *) _NL_CURRENT (LC_TIME, NLW(D_T_FMT)); | |
829 | #else | |
830 | # if HAVE_STRFTIME | |
831 | goto underlying_strftime; | |
832 | # else | |
833 | subfmt = L_("%a %b %e %H:%M:%S %Y"); | |
834 | # endif | |
835 | #endif | |
836 | ||
837 | subformat: | |
838 | { | |
839 | CHAR_T *old_start = p; | |
800d6f9e | 840 | size_t len = __strftime_internal (NULL, (size_t) -1, subfmt, |
32f600a2 TS |
841 | tp, yr_spec, tzset_called |
842 | ut_argument LOCALE_ARG); | |
800d6f9e | 843 | add (len, __strftime_internal (p, maxsize - i, subfmt, |
32f600a2 TS |
844 | tp, yr_spec, tzset_called |
845 | ut_argument LOCALE_ARG)); | |
ccadf7b5 UD |
846 | |
847 | if (to_uppcase) | |
848 | while (old_start < p) | |
849 | { | |
850 | *old_start = TOUPPER ((UCHAR_T) *old_start, loc); | |
851 | ++old_start; | |
852 | } | |
853 | } | |
854 | break; | |
855 | ||
856 | #if HAVE_STRFTIME && ! (defined _NL_CURRENT && HAVE_STRUCT_ERA_ENTRY) | |
857 | underlying_strftime: | |
858 | { | |
859 | /* The relevant information is available only via the | |
860 | underlying strftime implementation, so use that. */ | |
861 | char ufmt[4]; | |
862 | char *u = ufmt; | |
863 | char ubuf[1024]; /* enough for any single format in practice */ | |
864 | size_t len; | |
865 | /* Make sure we're calling the actual underlying strftime. | |
866 | In some cases, config.h contains something like | |
867 | "#define strftime rpl_strftime". */ | |
868 | # ifdef strftime | |
869 | # undef strftime | |
870 | size_t strftime (); | |
871 | # endif | |
872 | ||
873 | *u++ = '%'; | |
874 | if (modifier != 0) | |
875 | *u++ = modifier; | |
876 | *u++ = format_char; | |
877 | *u = '\0'; | |
878 | len = strftime (ubuf, sizeof ubuf, ufmt, tp); | |
879 | if (len == 0 && ubuf[0] != '\0') | |
880 | return 0; | |
881 | cpy (len, ubuf); | |
882 | } | |
883 | break; | |
884 | #endif | |
885 | ||
886 | case L_('C'): | |
ccadf7b5 UD |
887 | if (modifier == L_('E')) |
888 | { | |
889 | #if HAVE_STRUCT_ERA_ENTRY | |
890 | struct era_entry *era = _nl_get_era_entry (tp HELPER_LOCALE_ARG); | |
891 | if (era) | |
892 | { | |
893 | # ifdef COMPILE_WIDE | |
894 | size_t len = __wcslen (era->era_wname); | |
895 | cpy (len, era->era_wname); | |
896 | # else | |
897 | size_t len = strlen (era->era_name); | |
898 | cpy (len, era->era_name); | |
899 | # endif | |
900 | break; | |
901 | } | |
902 | #else | |
903 | # if HAVE_STRFTIME | |
904 | goto underlying_strftime; | |
905 | # endif | |
906 | #endif | |
907 | } | |
908 | ||
909 | { | |
910 | int year = tp->tm_year + TM_YEAR_BASE; | |
911 | DO_NUMBER (1, year / 100 - (year % 100 < 0)); | |
912 | } | |
913 | ||
914 | case L_('x'): | |
915 | if (modifier == L_('O')) | |
916 | goto bad_format; | |
917 | #ifdef _NL_CURRENT | |
918 | if (! (modifier == L_('E') | |
919 | && (*(subfmt = | |
5cbbf01e | 920 | (const CHAR_T *) _NL_CURRENT (LC_TIME, NLW(ERA_D_FMT))) |
ccadf7b5 UD |
921 | != L_('\0')))) |
922 | subfmt = (const CHAR_T *) _NL_CURRENT (LC_TIME, NLW(D_FMT)); | |
923 | goto subformat; | |
924 | #else | |
925 | # if HAVE_STRFTIME | |
926 | goto underlying_strftime; | |
927 | # else | |
928 | /* Fall through. */ | |
929 | # endif | |
930 | #endif | |
931 | case L_('D'): | |
932 | if (modifier != 0) | |
933 | goto bad_format; | |
934 | subfmt = L_("%m/%d/%y"); | |
935 | goto subformat; | |
936 | ||
937 | case L_('d'): | |
938 | if (modifier == L_('E')) | |
939 | goto bad_format; | |
940 | ||
941 | DO_NUMBER (2, tp->tm_mday); | |
942 | ||
943 | case L_('e'): | |
944 | if (modifier == L_('E')) | |
945 | goto bad_format; | |
946 | ||
947 | DO_NUMBER_SPACEPAD (2, tp->tm_mday); | |
948 | ||
949 | /* All numeric formats set DIGITS and NUMBER_VALUE and then | |
950 | jump to one of these two labels. */ | |
951 | ||
952 | do_number_spacepad: | |
953 | /* Force `_' flag unless overwritten by `0' or '-' flag. */ | |
954 | if (pad != L_('0') && pad != L_('-')) | |
955 | pad = L_('_'); | |
956 | ||
957 | do_number: | |
958 | /* Format the number according to the MODIFIER flag. */ | |
959 | ||
960 | if (modifier == L_('O') && 0 <= number_value) | |
961 | { | |
962 | #ifdef _NL_CURRENT | |
963 | /* Get the locale specific alternate representation of | |
964 | the number NUMBER_VALUE. If none exist NULL is returned. */ | |
965 | const CHAR_T *cp = nl_get_alt_digit (number_value | |
966 | HELPER_LOCALE_ARG); | |
967 | ||
968 | if (cp != NULL) | |
969 | { | |
970 | size_t digitlen = STRLEN (cp); | |
971 | if (digitlen != 0) | |
972 | { | |
973 | cpy (digitlen, cp); | |
974 | break; | |
975 | } | |
976 | } | |
977 | #else | |
978 | # if HAVE_STRFTIME | |
979 | goto underlying_strftime; | |
980 | # endif | |
981 | #endif | |
982 | } | |
983 | { | |
984 | unsigned int u = number_value; | |
985 | ||
986 | bufp = buf + sizeof (buf) / sizeof (buf[0]); | |
987 | negative_number = number_value < 0; | |
988 | ||
989 | if (negative_number) | |
990 | u = -u; | |
991 | ||
992 | do | |
993 | *--bufp = u % 10 + L_('0'); | |
994 | while ((u /= 10) != 0); | |
fb25b135 | 995 | } |
ccadf7b5 UD |
996 | |
997 | do_number_sign_and_padding: | |
998 | if (negative_number) | |
999 | *--bufp = L_('-'); | |
1000 | ||
1001 | if (pad != L_('-')) | |
1002 | { | |
1003 | int padding = digits - (buf + (sizeof (buf) / sizeof (buf[0])) | |
1004 | - bufp); | |
1005 | ||
1006 | if (padding > 0) | |
1007 | { | |
1008 | if (pad == L_('_')) | |
1009 | { | |
1010 | if ((size_t) padding >= maxsize - i) | |
1011 | return 0; | |
1012 | ||
1013 | if (p) | |
1014 | memset_space (p, padding); | |
1015 | i += padding; | |
1016 | width = width > padding ? width - padding : 0; | |
1017 | } | |
1018 | else | |
1019 | { | |
1020 | if ((size_t) digits >= maxsize - i) | |
1021 | return 0; | |
1022 | ||
1023 | if (negative_number) | |
1024 | { | |
1025 | ++bufp; | |
1026 | ||
1027 | if (p) | |
1028 | *p++ = L_('-'); | |
1029 | ++i; | |
1030 | } | |
1031 | ||
1032 | if (p) | |
1033 | memset_zero (p, padding); | |
1034 | i += padding; | |
1035 | width = 0; | |
1036 | } | |
1037 | } | |
1038 | } | |
1039 | ||
1040 | cpy (buf + sizeof (buf) / sizeof (buf[0]) - bufp, bufp); | |
1041 | break; | |
1042 | ||
1043 | case L_('F'): | |
1044 | if (modifier != 0) | |
1045 | goto bad_format; | |
1046 | subfmt = L_("%Y-%m-%d"); | |
1047 | goto subformat; | |
1048 | ||
1049 | case L_('H'): | |
1050 | if (modifier == L_('E')) | |
1051 | goto bad_format; | |
1052 | ||
1053 | DO_NUMBER (2, tp->tm_hour); | |
1054 | ||
1055 | case L_('I'): | |
1056 | if (modifier == L_('E')) | |
1057 | goto bad_format; | |
1058 | ||
1059 | DO_NUMBER (2, hour12); | |
1060 | ||
1061 | case L_('k'): /* GNU extension. */ | |
1062 | if (modifier == L_('E')) | |
1063 | goto bad_format; | |
1064 | ||
1065 | DO_NUMBER_SPACEPAD (2, tp->tm_hour); | |
1066 | ||
1067 | case L_('l'): /* GNU extension. */ | |
1068 | if (modifier == L_('E')) | |
1069 | goto bad_format; | |
1070 | ||
1071 | DO_NUMBER_SPACEPAD (2, hour12); | |
1072 | ||
1073 | case L_('j'): | |
1074 | if (modifier == L_('E')) | |
1075 | goto bad_format; | |
1076 | ||
1077 | DO_NUMBER (3, 1 + tp->tm_yday); | |
1078 | ||
1079 | case L_('M'): | |
1080 | if (modifier == L_('E')) | |
1081 | goto bad_format; | |
1082 | ||
1083 | DO_NUMBER (2, tp->tm_min); | |
1084 | ||
1085 | case L_('m'): | |
1086 | if (modifier == L_('E')) | |
1087 | goto bad_format; | |
1088 | ||
1089 | DO_NUMBER (2, tp->tm_mon + 1); | |
1090 | ||
1091 | case L_('n'): | |
1092 | add (1, *p = L_('\n')); | |
1093 | break; | |
1094 | ||
1095 | case L_('P'): | |
1096 | to_lowcase = 1; | |
1097 | #if !defined _NL_CURRENT && HAVE_STRFTIME | |
1098 | format_char = L_('p'); | |
1099 | #endif | |
1100 | /* FALLTHROUGH */ | |
1101 | ||
1102 | case L_('p'): | |
1103 | if (change_case) | |
1104 | { | |
1105 | to_uppcase = 0; | |
1106 | to_lowcase = 1; | |
1107 | } | |
1108 | #if defined _NL_CURRENT || !HAVE_STRFTIME | |
1109 | cpy (ap_len, ampm); | |
1110 | break; | |
1111 | #else | |
1112 | goto underlying_strftime; | |
1113 | #endif | |
1114 | ||
1115 | case L_('R'): | |
1116 | subfmt = L_("%H:%M"); | |
1117 | goto subformat; | |
1118 | ||
1119 | case L_('r'): | |
1120 | #if !defined _NL_CURRENT && HAVE_STRFTIME | |
1121 | goto underlying_strftime; | |
1122 | #else | |
1123 | # ifdef _NL_CURRENT | |
1124 | if (*(subfmt = (const CHAR_T *) _NL_CURRENT (LC_TIME, | |
1125 | NLW(T_FMT_AMPM))) | |
1126 | == L_('\0')) | |
1127 | # endif | |
1128 | subfmt = L_("%I:%M:%S %p"); | |
1129 | goto subformat; | |
1130 | #endif | |
1131 | ||
1132 | case L_('S'): | |
1133 | if (modifier == L_('E')) | |
1134 | goto bad_format; | |
1135 | ||
1136 | DO_NUMBER (2, tp->tm_sec); | |
1137 | ||
1138 | case L_('s'): /* GNU extension. */ | |
fb25b135 | 1139 | { |
ccadf7b5 UD |
1140 | struct tm ltm; |
1141 | time_t t; | |
1142 | ||
1143 | ltm = *tp; | |
1144 | t = mktime (<m); | |
1145 | ||
1146 | /* Generate string value for T using time_t arithmetic; | |
1147 | this works even if sizeof (long) < sizeof (time_t). */ | |
1148 | ||
1149 | bufp = buf + sizeof (buf) / sizeof (buf[0]); | |
1150 | negative_number = t < 0; | |
1151 | ||
1152 | do | |
1153 | { | |
1154 | int d = t % 10; | |
1155 | t /= 10; | |
1156 | ||
1157 | if (negative_number) | |
1158 | { | |
1159 | d = -d; | |
1160 | ||
1161 | /* Adjust if division truncates to minus infinity. */ | |
1162 | if (0 < -1 % 10 && d < 0) | |
1163 | { | |
1164 | t++; | |
1165 | d += 10; | |
1166 | } | |
1167 | } | |
1168 | ||
1169 | *--bufp = d + L_('0'); | |
1170 | } | |
1171 | while (t != 0); | |
1172 | ||
1173 | digits = 1; | |
1174 | goto do_number_sign_and_padding; | |
1175 | } | |
1176 | ||
1177 | case L_('X'): | |
1178 | if (modifier == L_('O')) | |
1179 | goto bad_format; | |
1180 | #ifdef _NL_CURRENT | |
1181 | if (! (modifier == L_('E') | |
1182 | && (*(subfmt = | |
1183 | (const CHAR_T *) _NL_CURRENT (LC_TIME, NLW(ERA_T_FMT))) | |
1184 | != L_('\0')))) | |
1185 | subfmt = (const CHAR_T *) _NL_CURRENT (LC_TIME, NLW(T_FMT)); | |
1186 | goto subformat; | |
1187 | #else | |
1188 | # if HAVE_STRFTIME | |
1189 | goto underlying_strftime; | |
1190 | # else | |
1191 | /* Fall through. */ | |
1192 | # endif | |
1193 | #endif | |
1194 | case L_('T'): | |
1195 | subfmt = L_("%H:%M:%S"); | |
1196 | goto subformat; | |
1197 | ||
1198 | case L_('t'): | |
1199 | add (1, *p = L_('\t')); | |
1200 | break; | |
1201 | ||
1202 | case L_('u'): | |
1203 | DO_NUMBER (1, (tp->tm_wday - 1 + 7) % 7 + 1); | |
1204 | ||
1205 | case L_('U'): | |
1206 | if (modifier == L_('E')) | |
1207 | goto bad_format; | |
1208 | ||
1209 | DO_NUMBER (2, (tp->tm_yday - tp->tm_wday + 7) / 7); | |
1210 | ||
1211 | case L_('V'): | |
1212 | case L_('g'): | |
1213 | case L_('G'): | |
1214 | if (modifier == L_('E')) | |
1215 | goto bad_format; | |
1216 | { | |
1217 | int year = tp->tm_year + TM_YEAR_BASE; | |
1218 | int days = iso_week_days (tp->tm_yday, tp->tm_wday); | |
1219 | ||
1220 | if (days < 0) | |
1221 | { | |
1222 | /* This ISO week belongs to the previous year. */ | |
1223 | year--; | |
1224 | days = iso_week_days (tp->tm_yday + (365 + __isleap (year)), | |
1225 | tp->tm_wday); | |
1226 | } | |
1227 | else | |
1228 | { | |
1229 | int d = iso_week_days (tp->tm_yday - (365 + __isleap (year)), | |
1230 | tp->tm_wday); | |
1231 | if (0 <= d) | |
1232 | { | |
1233 | /* This ISO week belongs to the next year. */ | |
1234 | year++; | |
1235 | days = d; | |
1236 | } | |
1237 | } | |
1238 | ||
1239 | switch (*f) | |
1240 | { | |
1241 | case L_('g'): | |
1242 | DO_NUMBER (2, (year % 100 + 100) % 100); | |
1243 | ||
1244 | case L_('G'): | |
1245 | DO_NUMBER (1, year); | |
1246 | ||
1247 | default: | |
1248 | DO_NUMBER (2, days / 7 + 1); | |
1249 | } | |
1250 | } | |
1251 | ||
1252 | case L_('W'): | |
1253 | if (modifier == L_('E')) | |
1254 | goto bad_format; | |
1255 | ||
1256 | DO_NUMBER (2, (tp->tm_yday - (tp->tm_wday - 1 + 7) % 7 + 7) / 7); | |
1257 | ||
1258 | case L_('w'): | |
1259 | if (modifier == L_('E')) | |
1260 | goto bad_format; | |
1261 | ||
1262 | DO_NUMBER (1, tp->tm_wday); | |
1263 | ||
1264 | case L_('Y'): | |
5cbbf01e | 1265 | if (modifier == L_('E')) |
ccadf7b5 UD |
1266 | { |
1267 | #if HAVE_STRUCT_ERA_ENTRY | |
1268 | struct era_entry *era = _nl_get_era_entry (tp HELPER_LOCALE_ARG); | |
1269 | if (era) | |
1270 | { | |
1271 | # ifdef COMPILE_WIDE | |
1272 | subfmt = era->era_wformat; | |
1273 | # else | |
1274 | subfmt = era->era_format; | |
1275 | # endif | |
32f600a2 TS |
1276 | if (pad != 0) |
1277 | yr_spec = pad; | |
ccadf7b5 UD |
1278 | goto subformat; |
1279 | } | |
1280 | #else | |
1281 | # if HAVE_STRFTIME | |
1282 | goto underlying_strftime; | |
1283 | # endif | |
1284 | #endif | |
1285 | } | |
1286 | if (modifier == L_('O')) | |
1287 | goto bad_format; | |
1288 | else | |
1289 | DO_NUMBER (1, tp->tm_year + TM_YEAR_BASE); | |
1290 | ||
1291 | case L_('y'): | |
1292 | if (modifier == L_('E')) | |
1293 | { | |
1294 | #if HAVE_STRUCT_ERA_ENTRY | |
1295 | struct era_entry *era = _nl_get_era_entry (tp HELPER_LOCALE_ARG); | |
1296 | if (era) | |
1297 | { | |
1298 | int delta = tp->tm_year - era->start_date[0]; | |
32f600a2 TS |
1299 | if (yr_spec != 0) |
1300 | pad = yr_spec; | |
b22eed37 | 1301 | DO_NUMBER (2, (era->offset |
ccadf7b5 UD |
1302 | + delta * era->absolute_direction)); |
1303 | } | |
1304 | #else | |
1305 | # if HAVE_STRFTIME | |
1306 | goto underlying_strftime; | |
1307 | # endif | |
1308 | #endif | |
1309 | } | |
1310 | DO_NUMBER (2, (tp->tm_year % 100 + 100) % 100); | |
1311 | ||
1312 | case L_('Z'): | |
1313 | if (change_case) | |
1314 | { | |
1315 | to_uppcase = 0; | |
1316 | to_lowcase = 1; | |
1317 | } | |
1318 | ||
1319 | #if HAVE_TZNAME | |
1320 | /* The tzset() call might have changed the value. */ | |
1321 | if (!(zone && *zone) && tp->tm_isdst >= 0) | |
5bcc6c0f UD |
1322 | { |
1323 | /* POSIX.1 requires that local time zone information is used as | |
1324 | though strftime called tzset. */ | |
1325 | # if HAVE_TZSET | |
1326 | if (!*tzset_called) | |
1327 | { | |
1328 | tzset (); | |
1329 | *tzset_called = true; | |
1330 | } | |
1331 | # endif | |
d36c75fc | 1332 | zone = tp->tm_isdst <= 1 ? tzname[tp->tm_isdst] : "?"; |
5bcc6c0f | 1333 | } |
ccadf7b5 UD |
1334 | #endif |
1335 | if (! zone) | |
1336 | zone = ""; | |
1337 | ||
1338 | #ifdef COMPILE_WIDE | |
1339 | { | |
1340 | /* The zone string is always given in multibyte form. We have | |
1341 | to transform it first. */ | |
1342 | wchar_t *wczone; | |
1343 | size_t len; | |
1344 | widen (zone, wczone, len); | |
1345 | cpy (len, wczone); | |
1346 | } | |
1347 | #else | |
1348 | cpy (strlen (zone), zone); | |
1349 | #endif | |
1350 | break; | |
1351 | ||
1352 | case L_('z'): | |
1353 | if (tp->tm_isdst < 0) | |
1354 | break; | |
1355 | ||
1356 | { | |
1357 | int diff; | |
1358 | #if HAVE_TM_GMTOFF | |
1359 | diff = tp->tm_gmtoff; | |
1360 | #else | |
1361 | if (ut) | |
1362 | diff = 0; | |
1363 | else | |
1364 | { | |
1365 | struct tm gtm; | |
1366 | struct tm ltm; | |
1367 | time_t lt; | |
1368 | ||
5bcc6c0f UD |
1369 | /* POSIX.1 requires that local time zone information is used as |
1370 | though strftime called tzset. */ | |
1371 | # if HAVE_TZSET | |
1372 | if (!*tzset_called) | |
1373 | { | |
1374 | tzset (); | |
1375 | *tzset_called = true; | |
1376 | } | |
1377 | # endif | |
1378 | ||
ccadf7b5 UD |
1379 | ltm = *tp; |
1380 | lt = mktime (<m); | |
1381 | ||
1382 | if (lt == (time_t) -1) | |
1383 | { | |
1384 | /* mktime returns -1 for errors, but -1 is also a | |
1385 | valid time_t value. Check whether an error really | |
1386 | occurred. */ | |
1387 | struct tm tm; | |
1388 | ||
1389 | if (! __localtime_r (<, &tm) | |
1390 | || ((ltm.tm_sec ^ tm.tm_sec) | |
1391 | | (ltm.tm_min ^ tm.tm_min) | |
1392 | | (ltm.tm_hour ^ tm.tm_hour) | |
1393 | | (ltm.tm_mday ^ tm.tm_mday) | |
1394 | | (ltm.tm_mon ^ tm.tm_mon) | |
1395 | | (ltm.tm_year ^ tm.tm_year))) | |
1396 | break; | |
1397 | } | |
1398 | ||
1399 | if (! __gmtime_r (<, >m)) | |
1400 | break; | |
1401 | ||
1402 | diff = tm_diff (<m, >m); | |
1403 | } | |
1404 | #endif | |
1405 | ||
1406 | if (diff < 0) | |
1407 | { | |
1408 | add (1, *p = L_('-')); | |
1409 | diff = -diff; | |
1410 | } | |
1411 | else | |
1412 | add (1, *p = L_('+')); | |
1413 | ||
1414 | diff /= 60; | |
1415 | DO_NUMBER (4, (diff / 60) * 100 + diff % 60); | |
1416 | } | |
1417 | ||
1418 | case L_('\0'): /* GNU extension: % at end of format. */ | |
1419 | --f; | |
1420 | /* Fall through. */ | |
1421 | default: | |
1422 | /* Unknown format; output the format, including the '%', | |
1423 | since this is most likely the right thing to do if a | |
1424 | multibyte string has been misparsed. */ | |
1425 | bad_format: | |
1426 | { | |
1427 | int flen; | |
1428 | for (flen = 1; f[1 - flen] != L_('%'); flen++) | |
1429 | continue; | |
1430 | cpy (flen, &f[1 - flen]); | |
1431 | } | |
1432 | break; | |
1433 | } | |
1434 | } | |
1435 | ||
1436 | if (p && maxsize != 0) | |
1437 | *p = L_('\0'); | |
1438 | return i; | |
1439 | } | |
ccadf7b5 UD |
1440 | |
1441 | ||
1442 | #ifdef emacs | |
1443 | /* For Emacs we have a separate interface which corresponds to the normal | |
1444 | strftime function and does not have the extra information whether the | |
1445 | TP arguments comes from a `gmtime' call or not. */ | |
1446 | size_t | |
f63f2bfd JM |
1447 | emacs_strftime (char *s, size_t maxsize, const char *format, |
1448 | const struct tm *tp) | |
ccadf7b5 UD |
1449 | { |
1450 | return my_strftime (s, maxsize, format, tp, 0); | |
1451 | } | |
1452 | #endif | |
1453 | ||
1454 | #if defined _LIBC && !defined COMPILE_WIDE | |
c4d6f155 | 1455 | weak_alias (__strftime_l, strftime_l) |
ccadf7b5 | 1456 | #endif |