Commit | Line | Data |
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1da6faed | 1 | /* Copyright (C) 1991,92,93,94,95,96,97,98,99,2000 Free Software Foundation, Inc. |
e50517d9 | 2 | This file is part of the GNU Emacs. |
8ce9b63e | 3 | |
e50517d9 GM |
4 | The GNU C Library is free software; you can redistribute it and/or |
5 | modify it under the terms of the GNU Library General Public License as | |
6 | published by the Free Software Foundation; either version 2 of the | |
7 | License, or (at your option) any later version. | |
8ce9b63e | 8 | |
e50517d9 | 9 | The GNU C Library is distributed in the hope that it will be useful, |
89752145 | 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
e50517d9 GM |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
12 | Library General Public License for more details. | |
8ce9b63e | 13 | |
e50517d9 GM |
14 | You should have received a copy of the GNU Library General Public |
15 | License along with the GNU C Library; see the file COPYING.LIB. If not, | |
16 | write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
17 | Boston, MA 02111-1307, USA. */ | |
49fb5799 PE |
18 | |
19 | #ifdef HAVE_CONFIG_H | |
20 | # include <config.h> | |
21 | #endif | |
22 | ||
23 | #ifdef _LIBC | |
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 | |
32 | # define MULTIBYTE_IS_FORMAT_SAFE 1 | |
33 | # define STDC_HEADERS 1 | |
49fb5799 PE |
34 | # include "../locale/localeinfo.h" |
35 | #endif | |
36 | ||
ffa0434b PE |
37 | #if defined emacs && !defined HAVE_BCOPY |
38 | # define HAVE_MEMCPY 1 | |
39 | #endif | |
40 | ||
49fb5799 | 41 | #include <ctype.h> |
e50517d9 | 42 | #include <sys/types.h> /* Some systems define `time_t' here. */ |
49fb5799 PE |
43 | |
44 | #ifdef TIME_WITH_SYS_TIME | |
45 | # include <sys/time.h> | |
46 | # include <time.h> | |
47 | #else | |
48 | # ifdef HAVE_SYS_TIME_H | |
49 | # include <sys/time.h> | |
50 | # else | |
51 | # include <time.h> | |
52 | # endif | |
53 | #endif | |
54 | #if HAVE_TZNAME | |
03695ace | 55 | #ifndef USE_CRT_DLL |
49fb5799 PE |
56 | extern char *tzname[]; |
57 | #endif | |
03695ace | 58 | #endif |
49fb5799 PE |
59 | |
60 | /* Do multibyte processing if multibytes are supported, unless | |
61 | multibyte sequences are safe in formats. Multibyte sequences are | |
62 | safe if they cannot contain byte sequences that look like format | |
63 | conversion specifications. The GNU C Library uses UTF8 multibyte | |
64 | encoding, which is safe for formats, but strftime.c can be used | |
65 | with other C libraries that use unsafe encodings. */ | |
66 | #define DO_MULTIBYTE (HAVE_MBLEN && ! MULTIBYTE_IS_FORMAT_SAFE) | |
67 | ||
68 | #if DO_MULTIBYTE | |
69 | # if HAVE_MBRLEN | |
70 | # include <wchar.h> | |
cfc905a1 EZ |
71 | # if __hpux |
72 | # include <sys/_mbstate_t.h> | |
73 | # endif | |
02521061 RS |
74 | # if !defined (mbsinit) && !defined (HAVE_MBSINIT) |
75 | # define mbsinit(ps) 1 | |
76 | # endif /* !defined (mbsinit) && !defined (HAVE_MBSINIT) */ | |
49fb5799 PE |
77 | # else |
78 | /* Simulate mbrlen with mblen as best we can. */ | |
79 | # define mbstate_t int | |
80 | # define mbrlen(s, n, ps) mblen (s, n) | |
81 | # define mbsinit(ps) (*(ps) == 0) | |
82 | # endif | |
83 | static const mbstate_t mbstate_zero; | |
84 | #endif | |
85 | ||
1da6faed | 86 | #ifdef HAVE_LIMITS_H |
49fb5799 PE |
87 | # include <limits.h> |
88 | #endif | |
89 | ||
1da6faed | 90 | #ifdef STDC_HEADERS |
49fb5799 PE |
91 | # include <stddef.h> |
92 | # include <stdlib.h> | |
49fb5799 | 93 | #else |
1b65a66c PE |
94 | # ifndef HAVE_MEMCPY |
95 | # define memcpy(d, s, n) bcopy ((s), (d), (n)) | |
96 | # endif | |
49fb5799 PE |
97 | #endif |
98 | ||
e50517d9 GM |
99 | #ifdef COMPILE_WIDE |
100 | # include <endian.h> | |
101 | # define CHAR_T wchar_t | |
102 | # define UCHAR_T unsigned int | |
103 | # define L_(Str) L##Str | |
104 | # define NLW(Sym) _NL_W##Sym | |
105 | ||
106 | # define MEMCPY(d, s, n) __wmemcpy (d, s, n) | |
107 | # define STRLEN(s) __wcslen (s) | |
108 | ||
4e941b8e | 109 | #else |
e50517d9 GM |
110 | # define CHAR_T char |
111 | # define UCHAR_T unsigned char | |
112 | # define L_(Str) Str | |
113 | # define NLW(Sym) Sym | |
114 | ||
115 | # if !defined STDC_HEADERS && !defined HAVE_MEMCPY | |
116 | # define MEMCPY(d, s, n) bcopy ((s), (d), (n)) | |
117 | # else | |
118 | # define MEMCPY(d, s, n) memcpy ((d), (s), (n)) | |
119 | # endif | |
120 | # define STRLEN(s) strlen (s) | |
121 | ||
122 | # ifdef _LIBC | |
123 | # define MEMPCPY(d, s, n) __mempcpy (d, s, n) | |
124 | # else | |
125 | # ifndef HAVE_MEMPCPY | |
126 | # define MEMPCPY(d, s, n) ((void *) ((char *) memcpy (d, s, n) + (n))) | |
127 | # endif | |
4e941b8e UD |
128 | # endif |
129 | #endif | |
130 | ||
49fb5799 | 131 | #ifndef __P |
e50517d9 GM |
132 | # if defined emacs && defined PROTOTYPES |
133 | # define __P(args) args | |
134 | # elif defined __GNUC__ || (defined __STDC__ && __STDC__) | |
49fb5799 PE |
135 | # define __P(args) args |
136 | # else | |
137 | # define __P(args) () | |
138 | # endif /* GCC. */ | |
139 | #endif /* Not __P. */ | |
140 | ||
141 | #ifndef PTR | |
142 | # ifdef __STDC__ | |
143 | # define PTR void * | |
144 | # else | |
145 | # define PTR char * | |
146 | # endif | |
147 | #endif | |
148 | ||
149 | #ifndef CHAR_BIT | |
150 | # define CHAR_BIT 8 | |
151 | #endif | |
152 | ||
153 | #ifndef NULL | |
154 | # define NULL 0 | |
155 | #endif | |
156 | ||
157 | #define TYPE_SIGNED(t) ((t) -1 < 0) | |
158 | ||
159 | /* Bound on length of the string representing an integer value of type t. | |
160 | Subtract one for the sign bit if t is signed; | |
161 | 302 / 1000 is log10 (2) rounded up; | |
162 | add one for integer division truncation; | |
163 | add one more for a minus sign if t is signed. */ | |
164 | #define INT_STRLEN_BOUND(t) \ | |
68c45bf0 | 165 | ((sizeof (t) * CHAR_BIT - TYPE_SIGNED (t)) * 302 / 1000 + 1 + TYPE_SIGNED (t)) |
49fb5799 PE |
166 | |
167 | #define TM_YEAR_BASE 1900 | |
168 | ||
169 | #ifndef __isleap | |
170 | /* Nonzero if YEAR is a leap year (every 4 years, | |
171 | except every 100th isn't, and every 400th is). */ | |
e50517d9 | 172 | # define __isleap(year) \ |
49fb5799 PE |
173 | ((year) % 4 == 0 && ((year) % 100 != 0 || (year) % 400 == 0)) |
174 | #endif | |
175 | ||
176 | ||
177 | #ifdef _LIBC | |
68c45bf0 PE |
178 | # define my_strftime_gmtime_r __gmtime_r |
179 | # define my_strftime_localtime_r __localtime_r | |
49fb5799 PE |
180 | # define tzname __tzname |
181 | # define tzset __tzset | |
182 | #else | |
68c45bf0 PE |
183 | |
184 | /* If we're a strftime substitute in a GNU program, then prefer gmtime | |
185 | to gmtime_r, since many gmtime_r implementations are buggy. | |
186 | Similarly for localtime_r. */ | |
187 | ||
188 | # if ! HAVE_TM_GMTOFF | |
189 | static struct tm *my_strftime_gmtime_r __P ((const time_t *, struct tm *)); | |
49fb5799 | 190 | static struct tm * |
68c45bf0 | 191 | my_strftime_gmtime_r (t, tp) |
49fb5799 PE |
192 | const time_t *t; |
193 | struct tm *tp; | |
194 | { | |
195 | struct tm *l = gmtime (t); | |
196 | if (! l) | |
197 | return 0; | |
198 | *tp = *l; | |
199 | return tp; | |
200 | } | |
68c45bf0 | 201 | # endif /* ! HAVE_TM_GMTOFF */ |
49fb5799 | 202 | |
68c45bf0 | 203 | static struct tm *my_strftime_localtime_r __P ((const time_t *, struct tm *)); |
49fb5799 | 204 | static struct tm * |
68c45bf0 | 205 | my_strftime_localtime_r (t, tp) |
49fb5799 PE |
206 | const time_t *t; |
207 | struct tm *tp; | |
208 | { | |
209 | struct tm *l = localtime (t); | |
210 | if (! l) | |
211 | return 0; | |
212 | *tp = *l; | |
213 | return tp; | |
214 | } | |
649e97a3 | 215 | #endif /* ! defined _LIBC */ |
49fb5799 PE |
216 | |
217 | ||
1b65a66c | 218 | #if !defined memset && !defined HAVE_MEMSET && !defined _LIBC |
49fb5799 PE |
219 | /* Some systems lack the `memset' function and we don't want to |
220 | introduce additional dependencies. */ | |
c72e6644 RS |
221 | /* The SGI compiler reportedly barfs on the trailing null |
222 | if we use a string constant as the initializer. 28 June 1997, rms. */ | |
e50517d9 GM |
223 | static const CHAR_T spaces[16] = /* " " */ |
224 | { | |
225 | L_(' '),L_(' '),L_(' '),L_(' '),L_(' '),L_(' '),L_(' '),L_(' '), | |
226 | L_(' '),L_(' '),L_(' '),L_(' '),L_(' '),L_(' '),L_(' '),L_(' ') | |
227 | }; | |
228 | static const CHAR_T zeroes[16] = /* "0000000000000000" */ | |
229 | { | |
230 | L_('0'),L_('0'),L_('0'),L_('0'),L_('0'),L_('0'),L_('0'),L_('0'), | |
231 | L_('0'),L_('0'),L_('0'),L_('0'),L_('0'),L_('0'),L_('0'),L_('0') | |
232 | }; | |
49fb5799 PE |
233 | |
234 | # define memset_space(P, Len) \ | |
e50517d9 GM |
235 | do { \ |
236 | int _len = (Len); \ | |
237 | \ | |
238 | do \ | |
239 | { \ | |
240 | int _this = _len > 16 ? 16 : _len; \ | |
241 | (P) = MEMPCPY ((P), spaces, _this * sizeof (CHAR_T)); \ | |
242 | _len -= _this; \ | |
243 | } \ | |
244 | while (_len > 0); \ | |
49fb5799 | 245 | } while (0) |
098401cf PE |
246 | |
247 | # define memset_zero(P, Len) \ | |
e50517d9 GM |
248 | do { \ |
249 | int _len = (Len); \ | |
250 | \ | |
251 | do \ | |
252 | { \ | |
253 | int _this = _len > 16 ? 16 : _len; \ | |
254 | (P) = MEMPCPY ((P), zeroes, _this * sizeof (CHAR_T)); \ | |
255 | _len -= _this; \ | |
256 | } \ | |
257 | while (_len > 0); \ | |
098401cf | 258 | } while (0) |
49fb5799 | 259 | #else |
e50517d9 GM |
260 | # ifdef COMPILE_WIDE |
261 | # define memset_space(P, Len) (wmemset ((P), L' ', (Len)), (P) += (Len)) | |
262 | # define memset_zero(P, Len) (wmemset ((P), L'0', (Len)), (P) += (Len)) | |
263 | # else | |
264 | # define memset_space(P, Len) (memset ((P), ' ', (Len)), (P) += (Len)) | |
265 | # define memset_zero(P, Len) (memset ((P), '0', (Len)), (P) += (Len)) | |
266 | # endif | |
49fb5799 PE |
267 | #endif |
268 | ||
e50517d9 GM |
269 | #define add(n, f) \ |
270 | do \ | |
271 | { \ | |
272 | int _n = (n); \ | |
273 | int _delta = width - _n; \ | |
274 | int _incr = _n + (_delta > 0 ? _delta : 0); \ | |
275 | if (i + _incr >= maxsize) \ | |
276 | return 0; \ | |
277 | if (p) \ | |
278 | { \ | |
279 | if (_delta > 0) \ | |
280 | { \ | |
281 | if (pad == L_('0')) \ | |
282 | memset_zero (p, _delta); \ | |
283 | else \ | |
284 | memset_space (p, _delta); \ | |
285 | } \ | |
286 | f; \ | |
287 | p += _n; \ | |
288 | } \ | |
289 | i += _incr; \ | |
49fb5799 PE |
290 | } while (0) |
291 | ||
1b65a66c | 292 | #define cpy(n, s) \ |
e50517d9 GM |
293 | add ((n), \ |
294 | if (to_lowcase) \ | |
295 | memcpy_lowcase (p, (s), _n); \ | |
296 | else if (to_uppcase) \ | |
297 | memcpy_uppcase (p, (s), _n); \ | |
298 | else \ | |
299 | MEMCPY ((PTR) p, (PTR) (s), _n)) | |
300 | ||
301 | #ifdef COMPILE_WIDE | |
302 | # define widen(os, ws, l) \ | |
303 | { \ | |
304 | mbstate_t __st; \ | |
305 | const char *__s = os; \ | |
306 | memset (&__st, '\0', sizeof (__st)); \ | |
307 | l = __mbsrtowcs (NULL, &__s, 0, &__st); \ | |
308 | ws = alloca ((l + 1) * sizeof (wchar_t)); \ | |
309 | (void) __mbsrtowcs (ws, &__s, l, &__st); \ | |
310 | } | |
311 | #endif | |
49fb5799 PE |
312 | |
313 | ||
e50517d9 GM |
314 | #ifdef COMPILE_WIDE |
315 | # define TOUPPER(Ch) towupper (Ch) | |
316 | # define TOLOWER(Ch) towlower (Ch) | |
49fb5799 | 317 | #else |
e50517d9 GM |
318 | # ifdef _LIBC |
319 | # define TOUPPER(Ch) toupper (Ch) | |
320 | # define TOLOWER(Ch) tolower (Ch) | |
321 | # else | |
322 | # define TOUPPER(Ch) (islower (Ch) ? toupper (Ch) : (Ch)) | |
323 | # define TOLOWER(Ch) (isupper (Ch) ? tolower (Ch) : (Ch)) | |
324 | # endif | |
49fb5799 PE |
325 | #endif |
326 | /* We don't use `isdigit' here since the locale dependent | |
327 | interpretation is not what we want here. We only need to accept | |
328 | the arabic digits in the ASCII range. One day there is perhaps a | |
329 | more reliable way to accept other sets of digits. */ | |
e50517d9 | 330 | #define ISDIGIT(Ch) ((unsigned int) (Ch) - L_('0') <= 9) |
49fb5799 | 331 | |
e50517d9 GM |
332 | static CHAR_T *memcpy_lowcase __P ((CHAR_T *dest, const CHAR_T *src, |
333 | size_t len)); | |
49fb5799 | 334 | |
e50517d9 | 335 | static CHAR_T * |
49fb5799 | 336 | memcpy_lowcase (dest, src, len) |
e50517d9 GM |
337 | CHAR_T *dest; |
338 | const CHAR_T *src; | |
49fb5799 PE |
339 | size_t len; |
340 | { | |
341 | while (len-- > 0) | |
e50517d9 | 342 | dest[len] = TOLOWER ((UCHAR_T) src[len]); |
49fb5799 PE |
343 | return dest; |
344 | } | |
345 | ||
e50517d9 GM |
346 | static CHAR_T *memcpy_uppcase __P ((CHAR_T *dest, const CHAR_T *src, |
347 | size_t len)); | |
49fb5799 | 348 | |
e50517d9 | 349 | static CHAR_T * |
49fb5799 | 350 | memcpy_uppcase (dest, src, len) |
e50517d9 GM |
351 | CHAR_T *dest; |
352 | const CHAR_T *src; | |
49fb5799 PE |
353 | size_t len; |
354 | { | |
355 | while (len-- > 0) | |
e50517d9 | 356 | dest[len] = TOUPPER ((UCHAR_T) src[len]); |
49fb5799 PE |
357 | return dest; |
358 | } | |
359 | ||
1b65a66c | 360 | |
49fb5799 PE |
361 | #if ! HAVE_TM_GMTOFF |
362 | /* Yield the difference between *A and *B, | |
363 | measured in seconds, ignoring leap seconds. */ | |
1b65a66c | 364 | # define tm_diff ftime_tm_diff |
49fb5799 PE |
365 | static int tm_diff __P ((const struct tm *, const struct tm *)); |
366 | static int | |
367 | tm_diff (a, b) | |
368 | const struct tm *a; | |
369 | const struct tm *b; | |
370 | { | |
371 | /* Compute intervening leap days correctly even if year is negative. | |
372 | Take care to avoid int overflow in leap day calculations, | |
373 | but it's OK to assume that A and B are close to each other. */ | |
374 | int a4 = (a->tm_year >> 2) + (TM_YEAR_BASE >> 2) - ! (a->tm_year & 3); | |
375 | int b4 = (b->tm_year >> 2) + (TM_YEAR_BASE >> 2) - ! (b->tm_year & 3); | |
376 | int a100 = a4 / 25 - (a4 % 25 < 0); | |
377 | int b100 = b4 / 25 - (b4 % 25 < 0); | |
378 | int a400 = a100 >> 2; | |
379 | int b400 = b100 >> 2; | |
380 | int intervening_leap_days = (a4 - b4) - (a100 - b100) + (a400 - b400); | |
381 | int years = a->tm_year - b->tm_year; | |
382 | int days = (365 * years + intervening_leap_days | |
e50517d9 | 383 | + (a->tm_yday - b->tm_yday)); |
49fb5799 | 384 | return (60 * (60 * (24 * days + (a->tm_hour - b->tm_hour)) |
e50517d9 GM |
385 | + (a->tm_min - b->tm_min)) |
386 | + (a->tm_sec - b->tm_sec)); | |
49fb5799 PE |
387 | } |
388 | #endif /* ! HAVE_TM_GMTOFF */ | |
389 | ||
390 | ||
391 | ||
392 | /* The number of days from the first day of the first ISO week of this | |
393 | year to the year day YDAY with week day WDAY. ISO weeks start on | |
394 | Monday; the first ISO week has the year's first Thursday. YDAY may | |
395 | be as small as YDAY_MINIMUM. */ | |
396 | #define ISO_WEEK_START_WDAY 1 /* Monday */ | |
397 | #define ISO_WEEK1_WDAY 4 /* Thursday */ | |
398 | #define YDAY_MINIMUM (-366) | |
399 | static int iso_week_days __P ((int, int)); | |
400 | #ifdef __GNUC__ | |
ffa0434b | 401 | __inline__ |
49fb5799 PE |
402 | #endif |
403 | static int | |
404 | iso_week_days (yday, wday) | |
405 | int yday; | |
406 | int wday; | |
407 | { | |
408 | /* Add enough to the first operand of % to make it nonnegative. */ | |
409 | int big_enough_multiple_of_7 = (-YDAY_MINIMUM / 7 + 2) * 7; | |
410 | return (yday | |
e50517d9 GM |
411 | - (yday - wday + ISO_WEEK1_WDAY + big_enough_multiple_of_7) % 7 |
412 | + ISO_WEEK1_WDAY - ISO_WEEK_START_WDAY); | |
49fb5799 PE |
413 | } |
414 | ||
415 | ||
4b7c78fc | 416 | #if !(defined _NL_CURRENT || HAVE_STRFTIME) |
e50517d9 | 417 | static CHAR_T const weekday_name[][10] = |
49fb5799 | 418 | { |
e50517d9 GM |
419 | L_("Sunday"), L_("Monday"), L_("Tuesday"), L_("Wednesday"), |
420 | L_("Thursday"), L_("Friday"), L_("Saturday") | |
49fb5799 | 421 | }; |
e50517d9 | 422 | static CHAR_T const month_name[][10] = |
49fb5799 | 423 | { |
e50517d9 GM |
424 | L_("January"), L_("February"), L_("March"), L_("April"), L_("May"), |
425 | L_("June"), L_("July"), L_("August"), L_("September"), L_("October"), | |
426 | L_("November"), L_("December") | |
49fb5799 PE |
427 | }; |
428 | #endif | |
429 | ||
430 | ||
4b7c78fc | 431 | #ifdef emacs |
68c45bf0 PE |
432 | # define my_strftime emacs_strftimeu |
433 | # define ut_argument , ut | |
434 | # define ut_argument_spec int ut; | |
435 | # define ut_argument_spec_iso , int ut | |
4b7c78fc | 436 | #else |
e50517d9 GM |
437 | # ifdef COMPILE_WIDE |
438 | # define my_strftime wcsftime | |
439 | # else | |
440 | # define my_strftime strftime | |
441 | # endif | |
68c45bf0 PE |
442 | # define ut_argument |
443 | # define ut_argument_spec | |
444 | # define ut_argument_spec_iso | |
445 | /* We don't have this information in general. */ | |
446 | # define ut 0 | |
4b7c78fc UD |
447 | #endif |
448 | ||
ea456eb4 | 449 | #if !defined _LIBC && !defined(WINDOWSNT) && HAVE_TZNAME && HAVE_TZSET |
49fb5799 PE |
450 | /* Solaris 2.5 tzset sometimes modifies the storage returned by localtime. |
451 | Work around this bug by copying *tp before it might be munged. */ | |
452 | size_t _strftime_copytm __P ((char *, size_t, const char *, | |
e50517d9 | 453 | const struct tm * ut_argument_spec_iso)); |
49fb5799 | 454 | size_t |
68c45bf0 | 455 | my_strftime (s, maxsize, format, tp ut_argument) |
e50517d9 | 456 | CHAR_T *s; |
49fb5799 | 457 | size_t maxsize; |
e50517d9 | 458 | const CHAR_T *format; |
49fb5799 | 459 | const struct tm *tp; |
68c45bf0 | 460 | ut_argument_spec |
49fb5799 PE |
461 | { |
462 | struct tm tmcopy; | |
463 | tmcopy = *tp; | |
68c45bf0 | 464 | return _strftime_copytm (s, maxsize, format, &tmcopy ut_argument); |
49fb5799 | 465 | } |
4b7c78fc | 466 | # undef my_strftime |
ea456eb4 | 467 | # define my_strftime _strftime_copytm |
49fb5799 PE |
468 | #endif |
469 | ||
470 | ||
471 | /* Write information from TP into S according to the format | |
472 | string FORMAT, writing no more that MAXSIZE characters | |
473 | (including the terminating '\0') and returning number of | |
474 | characters written. If S is NULL, nothing will be written | |
475 | anywhere, so to determine how many characters would be | |
476 | written, use NULL for S and (size_t) UINT_MAX for MAXSIZE. */ | |
477 | size_t | |
68c45bf0 | 478 | my_strftime (s, maxsize, format, tp ut_argument) |
e50517d9 | 479 | CHAR_T *s; |
49fb5799 | 480 | size_t maxsize; |
e50517d9 | 481 | const CHAR_T *format; |
49fb5799 | 482 | const struct tm *tp; |
68c45bf0 | 483 | ut_argument_spec |
49fb5799 PE |
484 | { |
485 | int hour12 = tp->tm_hour; | |
486 | #ifdef _NL_CURRENT | |
68c45bf0 PE |
487 | /* We cannot make the following values variables since we must delay |
488 | the evaluation of these values until really needed since some | |
489 | expressions might not be valid in every situation. The `struct tm' | |
490 | might be generated by a strptime() call that initialized | |
491 | only a few elements. Dereference the pointers only if the format | |
492 | requires this. Then it is ok to fail if the pointers are invalid. */ | |
e50517d9 GM |
493 | # define a_wkday \ |
494 | ((const CHAR_T *) _NL_CURRENT (LC_TIME, NLW(ABDAY_1) + tp->tm_wday)) | |
495 | # define f_wkday \ | |
496 | ((const CHAR_T *) _NL_CURRENT (LC_TIME, NLW(DAY_1) + tp->tm_wday)) | |
497 | # define a_month \ | |
498 | ((const CHAR_T *) _NL_CURRENT (LC_TIME, NLW(ABMON_1) + tp->tm_mon)) | |
499 | # define f_month \ | |
500 | ((const CHAR_T *) _NL_CURRENT (LC_TIME, NLW(MON_1) + tp->tm_mon)) | |
501 | # define ampm \ | |
502 | ((const CHAR_T *) _NL_CURRENT (LC_TIME, tp->tm_hour > 11 \ | |
503 | ? NLW(PM_STR) : NLW(AM_STR))) | |
504 | ||
505 | # define aw_len STRLEN (a_wkday) | |
506 | # define am_len STRLEN (a_month) | |
507 | # define ap_len STRLEN (ampm) | |
49fb5799 | 508 | #else |
4b7c78fc | 509 | # if !HAVE_STRFTIME |
e50517d9 GM |
510 | # define f_wkday (weekday_name[tp->tm_wday]) |
511 | # define f_month (month_name[tp->tm_mon]) | |
512 | # define a_wkday f_wkday | |
513 | # define a_month f_month | |
514 | # define ampm (L_("AMPM") + 2 * (tp->tm_hour > 11)) | |
68c45bf0 | 515 | |
49fb5799 PE |
516 | size_t aw_len = 3; |
517 | size_t am_len = 3; | |
518 | size_t ap_len = 2; | |
4b7c78fc | 519 | # endif |
4b7c78fc | 520 | #endif |
49fb5799 | 521 | const char *zone; |
49fb5799 | 522 | size_t i = 0; |
e50517d9 GM |
523 | CHAR_T *p = s; |
524 | const CHAR_T *f; | |
49fb5799 PE |
525 | |
526 | zone = NULL; | |
1b65a66c PE |
527 | #if HAVE_TM_ZONE |
528 | /* The POSIX test suite assumes that setting | |
49fb5799 PE |
529 | the environment variable TZ to a new value before calling strftime() |
530 | will influence the result (the %Z format) even if the information in | |
1b65a66c PE |
531 | TP is computed with a totally different time zone. |
532 | This is bogus: though POSIX allows bad behavior like this, | |
533 | POSIX does not require it. Do the right thing instead. */ | |
49fb5799 PE |
534 | zone = (const char *) tp->tm_zone; |
535 | #endif | |
536 | #if HAVE_TZNAME | |
68c45bf0 PE |
537 | if (ut) |
538 | { | |
539 | if (! (zone && *zone)) | |
e50517d9 | 540 | zone = "UTC"; |
68c45bf0 PE |
541 | } |
542 | else | |
543 | { | |
544 | /* POSIX.1 8.1.1 requires that whenever strftime() is called, the | |
e50517d9 GM |
545 | time zone names contained in the external variable `tzname' shall |
546 | be set as if the tzset() function had been called. */ | |
49fb5799 | 547 | # if HAVE_TZSET |
68c45bf0 | 548 | tzset (); |
49fb5799 | 549 | # endif |
68c45bf0 | 550 | } |
49fb5799 | 551 | #endif |
49fb5799 PE |
552 | |
553 | if (hour12 > 12) | |
554 | hour12 -= 12; | |
555 | else | |
68c45bf0 PE |
556 | if (hour12 == 0) |
557 | hour12 = 12; | |
49fb5799 PE |
558 | |
559 | for (f = format; *f != '\0'; ++f) | |
560 | { | |
e50517d9 GM |
561 | int pad = 0; /* Padding for number ('-', '_', or 0). */ |
562 | int modifier; /* Field modifier ('E', 'O', or 0). */ | |
563 | int digits; /* Max digits for numeric format. */ | |
564 | int number_value; /* Numeric value to be printed. */ | |
565 | int negative_number; /* 1 if the number is negative. */ | |
566 | const CHAR_T *subfmt; | |
567 | CHAR_T *bufp; | |
568 | CHAR_T buf[1 + (sizeof (int) < sizeof (time_t) | |
569 | ? INT_STRLEN_BOUND (time_t) | |
570 | : INT_STRLEN_BOUND (int))]; | |
49fb5799 PE |
571 | int width = -1; |
572 | int to_lowcase = 0; | |
573 | int to_uppcase = 0; | |
1b65a66c | 574 | int change_case = 0; |
4b7c78fc | 575 | int format_char; |
49fb5799 | 576 | |
e50517d9 GM |
577 | #if DO_MULTIBYTE && !defined COMPILE_WIDE |
578 | switch (*f) | |
579 | { | |
580 | case L_('%'): | |
581 | break; | |
582 | ||
583 | case L_('\b'): case L_('\t'): case L_('\n'): | |
584 | case L_('\v'): case L_('\f'): case L_('\r'): | |
585 | case L_(' '): case L_('!'): case L_('"'): case L_('#'): case L_('&'): | |
586 | case L_('\''): case L_('('): case L_(')'): case L_('*'): case L_('+'): | |
587 | case L_(','): case L_('-'): case L_('.'): case L_('/'): case L_('0'): | |
588 | case L_('1'): case L_('2'): case L_('3'): case L_('4'): case L_('5'): | |
589 | case L_('6'): case L_('7'): case L_('8'): case L_('9'): case L_(':'): | |
590 | case L_(';'): case L_('<'): case L_('='): case L_('>'): case L_('?'): | |
591 | case L_('A'): case L_('B'): case L_('C'): case L_('D'): case L_('E'): | |
592 | case L_('F'): case L_('G'): case L_('H'): case L_('I'): case L_('J'): | |
593 | case L_('K'): case L_('L'): case L_('M'): case L_('N'): case L_('O'): | |
594 | case L_('P'): case L_('Q'): case L_('R'): case L_('S'): case L_('T'): | |
595 | case L_('U'): case L_('V'): case L_('W'): case L_('X'): case L_('Y'): | |
596 | case L_('Z'): case L_('['): case L_('\\'): case L_(']'): case L_('^'): | |
597 | case L_('_'): case L_('a'): case L_('b'): case L_('c'): case L_('d'): | |
598 | case L_('e'): case L_('f'): case L_('g'): case L_('h'): case L_('i'): | |
599 | case L_('j'): case L_('k'): case L_('l'): case L_('m'): case L_('n'): | |
600 | case L_('o'): case L_('p'): case L_('q'): case L_('r'): case L_('s'): | |
601 | case L_('t'): case L_('u'): case L_('v'): case L_('w'): case L_('x'): | |
602 | case L_('y'): case L_('z'): case L_('{'): case L_('|'): case L_('}'): | |
603 | case L_('~'): | |
604 | /* The C Standard requires these 97 characters (plus '%', `\a') to | |
605 | be in the basic execution character set. None of these | |
606 | characters can start a multibyte sequence, so they need | |
607 | not be analyzed further. Some old compilers object to | |
608 | `\a', so don't bother optimizing for it. */ | |
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 | ||
619 | do | |
620 | { | |
621 | size_t bytes = mbrlen (f + len, (size_t) -1, &mbstate); | |
622 | ||
623 | if (bytes == 0) | |
624 | break; | |
625 | ||
626 | if (bytes == (size_t) -2) | |
627 | { | |
628 | len += strlen (f + len); | |
629 | break; | |
630 | } | |
631 | ||
632 | if (bytes == (size_t) -1) | |
633 | { | |
634 | len++; | |
635 | break; | |
636 | } | |
637 | ||
638 | len += bytes; | |
639 | } | |
640 | while (! mbsinit (&mbstate)); | |
641 | ||
642 | cpy (len, f); | |
643 | f += len - 1; | |
644 | continue; | |
645 | } | |
646 | } | |
49fb5799 PE |
647 | |
648 | #else /* ! DO_MULTIBYTE */ | |
649 | ||
e50517d9 GM |
650 | /* Either multibyte encodings are not supported, they are |
651 | safe for formats, so any non-'%' byte can be copied through, | |
652 | or this is the wide character version. */ | |
653 | if (*f != L_('%')) | |
654 | { | |
655 | add (1, *p = *f); | |
656 | continue; | |
657 | } | |
49fb5799 PE |
658 | |
659 | #endif /* ! DO_MULTIBYTE */ | |
660 | ||
661 | /* Check for flags that can modify a format. */ | |
49fb5799 | 662 | while (1) |
e50517d9 GM |
663 | { |
664 | switch (*++f) | |
665 | { | |
666 | /* This influences the number formats. */ | |
667 | case L_('_'): | |
668 | case L_('-'): | |
669 | case L_('0'): | |
670 | pad = *f; | |
671 | continue; | |
672 | ||
673 | /* This changes textual output. */ | |
674 | case L_('^'): | |
675 | to_uppcase = 1; | |
676 | continue; | |
677 | case L_('#'): | |
678 | change_case = 1; | |
679 | continue; | |
680 | ||
681 | default: | |
682 | break; | |
683 | } | |
684 | break; | |
685 | } | |
49fb5799 PE |
686 | |
687 | /* As a GNU extension we allow to specify the field width. */ | |
688 | if (ISDIGIT (*f)) | |
e50517d9 GM |
689 | { |
690 | width = 0; | |
691 | do | |
692 | { | |
693 | width *= 10; | |
694 | width += *f - L_('0'); | |
695 | ++f; | |
696 | } | |
697 | while (ISDIGIT (*f)); | |
698 | } | |
49fb5799 PE |
699 | |
700 | /* Check for modifiers. */ | |
701 | switch (*f) | |
e50517d9 GM |
702 | { |
703 | case L_('E'): | |
704 | case L_('O'): | |
705 | modifier = *f++; | |
706 | break; | |
49fb5799 | 707 | |
e50517d9 GM |
708 | default: |
709 | modifier = 0; | |
710 | break; | |
711 | } | |
49fb5799 PE |
712 | |
713 | /* Now do the specified format. */ | |
4b7c78fc UD |
714 | format_char = *f; |
715 | switch (format_char) | |
e50517d9 | 716 | { |
49fb5799 | 717 | #define DO_NUMBER(d, v) \ |
e50517d9 GM |
718 | digits = width == -1 ? d : width; \ |
719 | number_value = v; goto do_number | |
49fb5799 | 720 | #define DO_NUMBER_SPACEPAD(d, v) \ |
e50517d9 GM |
721 | digits = width == -1 ? d : width; \ |
722 | number_value = v; goto do_number_spacepad | |
723 | ||
724 | case L_('%'): | |
725 | if (modifier != 0) | |
726 | goto bad_format; | |
727 | add (1, *p = *f); | |
728 | break; | |
729 | ||
730 | case L_('a'): | |
731 | if (modifier != 0) | |
732 | goto bad_format; | |
733 | if (change_case) | |
734 | { | |
735 | to_uppcase = 1; | |
736 | to_lowcase = 0; | |
737 | } | |
4b7c78fc | 738 | #if defined _NL_CURRENT || !HAVE_STRFTIME |
e50517d9 GM |
739 | cpy (aw_len, a_wkday); |
740 | break; | |
4b7c78fc | 741 | #else |
e50517d9 | 742 | goto underlying_strftime; |
4b7c78fc | 743 | #endif |
49fb5799 | 744 | |
e50517d9 GM |
745 | case 'A': |
746 | if (modifier != 0) | |
747 | goto bad_format; | |
748 | if (change_case) | |
749 | { | |
750 | to_uppcase = 1; | |
751 | to_lowcase = 0; | |
752 | } | |
4b7c78fc | 753 | #if defined _NL_CURRENT || !HAVE_STRFTIME |
e50517d9 GM |
754 | cpy (STRLEN (f_wkday), f_wkday); |
755 | break; | |
4b7c78fc | 756 | #else |
e50517d9 | 757 | goto underlying_strftime; |
4b7c78fc | 758 | #endif |
49fb5799 | 759 | |
e50517d9 GM |
760 | case L_('b'): |
761 | case L_('h'): /* POSIX.2 extension. */ | |
762 | if (change_case) | |
763 | { | |
764 | to_uppcase = 1; | |
765 | to_lowcase = 0; | |
766 | } | |
767 | if (modifier != 0) | |
768 | goto bad_format; | |
4b7c78fc | 769 | #if defined _NL_CURRENT || !HAVE_STRFTIME |
e50517d9 GM |
770 | cpy (am_len, a_month); |
771 | break; | |
4b7c78fc | 772 | #else |
e50517d9 | 773 | goto underlying_strftime; |
4b7c78fc | 774 | #endif |
49fb5799 | 775 | |
e50517d9 GM |
776 | case L_('B'): |
777 | if (modifier != 0) | |
778 | goto bad_format; | |
779 | if (change_case) | |
780 | { | |
781 | to_uppcase = 1; | |
782 | to_lowcase = 0; | |
783 | } | |
4b7c78fc | 784 | #if defined _NL_CURRENT || !HAVE_STRFTIME |
e50517d9 GM |
785 | cpy (STRLEN (f_month), f_month); |
786 | break; | |
4b7c78fc | 787 | #else |
e50517d9 | 788 | goto underlying_strftime; |
4b7c78fc | 789 | #endif |
49fb5799 | 790 | |
e50517d9 GM |
791 | case L_('c'): |
792 | if (modifier == L_('O')) | |
793 | goto bad_format; | |
49fb5799 | 794 | #ifdef _NL_CURRENT |
e50517d9 GM |
795 | if (! (modifier == 'E' |
796 | && (*(subfmt = (CHAR_T *) _NL_CURRENT (LC_TIME, | |
797 | NLW(ERA_D_T_FMT))) | |
798 | != '\0'))) | |
799 | subfmt = (CHAR_T *) _NL_CURRENT (LC_TIME, NLW(D_T_FMT)); | |
49fb5799 | 800 | #else |
4b7c78fc | 801 | # if HAVE_STRFTIME |
e50517d9 | 802 | goto underlying_strftime; |
4b7c78fc | 803 | # else |
e50517d9 | 804 | subfmt = L_("%a %b %e %H:%M:%S %Y"); |
4b7c78fc | 805 | # endif |
49fb5799 PE |
806 | #endif |
807 | ||
e50517d9 GM |
808 | subformat: |
809 | { | |
810 | CHAR_T *old_start = p; | |
ea456eb4 AI |
811 | size_t len = my_strftime (NULL, (size_t) -1, subfmt, tp, 0); |
812 | add (len, my_strftime (p, maxsize - i, subfmt, tp, 0)); | |
e50517d9 GM |
813 | |
814 | if (to_uppcase) | |
815 | while (old_start < p) | |
816 | { | |
817 | *old_start = TOUPPER ((UCHAR_T) *old_start); | |
818 | ++old_start; | |
819 | } | |
820 | } | |
821 | break; | |
49fb5799 | 822 | |
4b7c78fc | 823 | #if HAVE_STRFTIME && ! (defined _NL_CURRENT && HAVE_STRUCT_ERA_ENTRY) |
e50517d9 GM |
824 | underlying_strftime: |
825 | { | |
826 | /* The relevant information is available only via the | |
827 | underlying strftime implementation, so use that. */ | |
828 | char ufmt[4]; | |
829 | char *u = ufmt; | |
830 | char ubuf[1024]; /* enough for any single format in practice */ | |
831 | size_t len; | |
832 | /* Make sure we're calling the actual underlying strftime. | |
833 | In some cases, config.h contains something like | |
834 | "#define strftime rpl_strftime". */ | |
835 | # ifdef strftime | |
836 | # undef strftime | |
837 | size_t strftime (); | |
838 | # endif | |
839 | ||
6e396aa6 JR |
840 | #ifdef STRFTIME_NO_POSIX2 |
841 | /* Some system libraries do not support the POSIX.2 extensions. | |
842 | In those cases, convert %h to %b, and strip modifiers. */ | |
843 | modifier = 0; | |
844 | if (format_char == 'h') | |
845 | format_char = 'b'; | |
846 | #endif | |
e50517d9 GM |
847 | *u++ = '%'; |
848 | if (modifier != 0) | |
849 | *u++ = modifier; | |
850 | *u++ = format_char; | |
851 | *u = '\0'; | |
852 | len = strftime (ubuf, sizeof ubuf, ufmt, tp); | |
853 | if (len == 0 && ubuf[0] != '\0') | |
854 | return 0; | |
855 | cpy (len, ubuf); | |
856 | } | |
857 | break; | |
4b7c78fc UD |
858 | #endif |
859 | ||
e50517d9 GM |
860 | case L_('C'): /* POSIX.2 extension. */ |
861 | if (modifier == L_('O')) | |
862 | goto bad_format; | |
863 | if (modifier == L_('E')) | |
864 | { | |
4b7c78fc | 865 | #if HAVE_STRUCT_ERA_ENTRY |
e50517d9 GM |
866 | struct era_entry *era = _nl_get_era_entry (tp); |
867 | if (era) | |
868 | { | |
869 | # ifdef COMPILE_WIDE | |
870 | size_t len = __wcslen (era->era_wname); | |
871 | cpy (len, era->era_wname); | |
872 | # else | |
873 | size_t len = strlen (era->era_name); | |
874 | cpy (len, era->era_name); | |
875 | # endif | |
876 | break; | |
877 | } | |
4b7c78fc UD |
878 | #else |
879 | # if HAVE_STRFTIME | |
e50517d9 | 880 | goto underlying_strftime; |
4b7c78fc | 881 | # endif |
49fb5799 | 882 | #endif |
e50517d9 | 883 | } |
4b7c78fc | 884 | |
e50517d9 GM |
885 | { |
886 | int year = tp->tm_year + TM_YEAR_BASE; | |
887 | DO_NUMBER (1, year / 100 - (year % 100 < 0)); | |
888 | } | |
49fb5799 | 889 | |
e50517d9 GM |
890 | case L_('x'): |
891 | if (modifier == L_('O')) | |
892 | goto bad_format; | |
49fb5799 | 893 | #ifdef _NL_CURRENT |
e50517d9 GM |
894 | if (! (modifier == L_('E') |
895 | && (*(subfmt = (CHAR_T *)_NL_CURRENT (LC_TIME, | |
896 | NLW(ERA_D_FMT))) | |
897 | != L_('\0')))) | |
898 | subfmt = (CHAR_T *) _NL_CURRENT (LC_TIME, NLW(D_FMT)); | |
899 | goto subformat; | |
4b7c78fc UD |
900 | #else |
901 | # if HAVE_STRFTIME | |
e50517d9 | 902 | goto underlying_strftime; |
4b7c78fc | 903 | # else |
e50517d9 | 904 | /* Fall through. */ |
4b7c78fc UD |
905 | # endif |
906 | #endif | |
e50517d9 GM |
907 | case L_('D'): /* POSIX.2 extension. */ |
908 | if (modifier != 0) | |
909 | goto bad_format; | |
910 | subfmt = L_("%m/%d/%y"); | |
911 | goto subformat; | |
49fb5799 | 912 | |
e50517d9 GM |
913 | case L_('d'): |
914 | if (modifier == L_('E')) | |
915 | goto bad_format; | |
49fb5799 | 916 | |
e50517d9 | 917 | DO_NUMBER (2, tp->tm_mday); |
49fb5799 | 918 | |
e50517d9 GM |
919 | case L_('e'): /* POSIX.2 extension. */ |
920 | if (modifier == L_('E')) | |
921 | goto bad_format; | |
49fb5799 | 922 | |
e50517d9 | 923 | DO_NUMBER_SPACEPAD (2, tp->tm_mday); |
49fb5799 | 924 | |
e50517d9 GM |
925 | /* All numeric formats set DIGITS and NUMBER_VALUE and then |
926 | jump to one of these two labels. */ | |
49fb5799 | 927 | |
e50517d9 GM |
928 | do_number_spacepad: |
929 | /* Force `_' flag unless overwritten by `0' flag. */ | |
930 | if (pad != L_('0')) | |
931 | pad = L_('_'); | |
49fb5799 | 932 | |
e50517d9 GM |
933 | do_number: |
934 | /* Format the number according to the MODIFIER flag. */ | |
49fb5799 | 935 | |
e50517d9 GM |
936 | if (modifier == L_('O') && 0 <= number_value) |
937 | { | |
4b7c78fc | 938 | #ifdef _NL_CURRENT |
e50517d9 GM |
939 | /* Get the locale specific alternate representation of |
940 | the number NUMBER_VALUE. If none exist NULL is returned. */ | |
941 | # ifdef COMPILE_WIDE | |
942 | const wchar_t *cp = _nl_get_walt_digit (number_value); | |
943 | # else | |
944 | const char *cp = _nl_get_alt_digit (number_value); | |
945 | # endif | |
946 | ||
947 | if (cp != NULL) | |
948 | { | |
949 | size_t digitlen = STRLEN (cp); | |
950 | if (digitlen != 0) | |
951 | { | |
952 | cpy (digitlen, cp); | |
953 | break; | |
954 | } | |
955 | } | |
4b7c78fc UD |
956 | #else |
957 | # if HAVE_STRFTIME | |
e50517d9 | 958 | goto underlying_strftime; |
4b7c78fc | 959 | # endif |
49fb5799 | 960 | #endif |
e50517d9 GM |
961 | } |
962 | { | |
963 | unsigned int u = number_value; | |
49fb5799 | 964 | |
e50517d9 GM |
965 | bufp = buf + sizeof (buf) / sizeof (buf[0]); |
966 | negative_number = number_value < 0; | |
49fb5799 | 967 | |
e50517d9 GM |
968 | if (negative_number) |
969 | u = -u; | |
49fb5799 | 970 | |
e50517d9 GM |
971 | do |
972 | *--bufp = u % 10 + L_('0'); | |
973 | while ((u /= 10) != 0); | |
974 | } | |
49fb5799 | 975 | |
e50517d9 GM |
976 | do_number_sign_and_padding: |
977 | if (negative_number) | |
978 | *--bufp = L_('-'); | |
49fb5799 | 979 | |
e50517d9 GM |
980 | if (pad != L_('-')) |
981 | { | |
982 | int padding = digits - (buf + (sizeof (buf) / sizeof (buf[0])) | |
983 | - bufp); | |
49fb5799 | 984 | |
e50517d9 GM |
985 | if (pad == L_('_')) |
986 | { | |
987 | while (0 < padding--) | |
988 | *--bufp = L_(' '); | |
989 | } | |
990 | else | |
991 | { | |
992 | bufp += negative_number; | |
993 | while (0 < padding--) | |
994 | *--bufp = L_('0'); | |
995 | if (negative_number) | |
996 | *--bufp = L_('-'); | |
997 | } | |
998 | } | |
49fb5799 | 999 | |
e50517d9 GM |
1000 | cpy (buf + sizeof (buf) / sizeof (buf[0]) - bufp, bufp); |
1001 | break; | |
49fb5799 | 1002 | |
e50517d9 GM |
1003 | case L_('F'): |
1004 | if (modifier != 0) | |
1005 | goto bad_format; | |
1006 | subfmt = L_("%Y-%m-%d"); | |
1007 | goto subformat; | |
49fb5799 | 1008 | |
e50517d9 GM |
1009 | case L_('H'): |
1010 | if (modifier == L_('E')) | |
1011 | goto bad_format; | |
49fb5799 | 1012 | |
e50517d9 | 1013 | DO_NUMBER (2, tp->tm_hour); |
49fb5799 | 1014 | |
e50517d9 GM |
1015 | case L_('I'): |
1016 | if (modifier == L_('E')) | |
1017 | goto bad_format; | |
49fb5799 | 1018 | |
e50517d9 | 1019 | DO_NUMBER (2, hour12); |
49fb5799 | 1020 | |
e50517d9 GM |
1021 | case L_('k'): /* GNU extension. */ |
1022 | if (modifier == L_('E')) | |
1023 | goto bad_format; | |
49fb5799 | 1024 | |
e50517d9 | 1025 | DO_NUMBER_SPACEPAD (2, tp->tm_hour); |
49fb5799 | 1026 | |
e50517d9 GM |
1027 | case L_('l'): /* GNU extension. */ |
1028 | if (modifier == L_('E')) | |
1029 | goto bad_format; | |
49fb5799 | 1030 | |
e50517d9 | 1031 | DO_NUMBER_SPACEPAD (2, hour12); |
49fb5799 | 1032 | |
e50517d9 GM |
1033 | case L_('j'): |
1034 | if (modifier == L_('E')) | |
1035 | goto bad_format; | |
49fb5799 | 1036 | |
e50517d9 | 1037 | DO_NUMBER (3, 1 + tp->tm_yday); |
49fb5799 | 1038 | |
e50517d9 GM |
1039 | case L_('M'): |
1040 | if (modifier == L_('E')) | |
1041 | goto bad_format; | |
49fb5799 | 1042 | |
e50517d9 | 1043 | DO_NUMBER (2, tp->tm_min); |
49fb5799 | 1044 | |
e50517d9 GM |
1045 | case L_('m'): |
1046 | if (modifier == L_('E')) | |
1047 | goto bad_format; | |
49fb5799 | 1048 | |
e50517d9 | 1049 | DO_NUMBER (2, tp->tm_mon + 1); |
49fb5799 | 1050 | |
e50517d9 GM |
1051 | case L_('n'): /* POSIX.2 extension. */ |
1052 | add (1, *p = L_('\n')); | |
1053 | break; | |
49fb5799 | 1054 | |
e50517d9 GM |
1055 | case L_('P'): |
1056 | to_lowcase = 1; | |
4b7c78fc | 1057 | #if !defined _NL_CURRENT && HAVE_STRFTIME |
e50517d9 | 1058 | format_char = L_('p'); |
4b7c78fc | 1059 | #endif |
e50517d9 GM |
1060 | /* FALLTHROUGH */ |
1061 | ||
1062 | case L_('p'): | |
1063 | if (change_case) | |
1064 | { | |
1065 | to_uppcase = 0; | |
1066 | to_lowcase = 1; | |
1067 | } | |
4b7c78fc | 1068 | #if defined _NL_CURRENT || !HAVE_STRFTIME |
e50517d9 GM |
1069 | cpy (ap_len, ampm); |
1070 | break; | |
4b7c78fc | 1071 | #else |
e50517d9 | 1072 | goto underlying_strftime; |
4b7c78fc | 1073 | #endif |
49fb5799 | 1074 | |
e50517d9 GM |
1075 | case L_('R'): /* GNU extension. */ |
1076 | subfmt = L_("%H:%M"); | |
1077 | goto subformat; | |
49fb5799 | 1078 | |
e50517d9 | 1079 | case L_('r'): /* POSIX.2 extension. */ |
49fb5799 | 1080 | #ifdef _NL_CURRENT |
e50517d9 GM |
1081 | if (*(subfmt = (CHAR_T *) _NL_CURRENT (LC_TIME, |
1082 | NLW(T_FMT_AMPM))) == L_('\0')) | |
49fb5799 | 1083 | #endif |
e50517d9 GM |
1084 | subfmt = L_("%I:%M:%S %p"); |
1085 | goto subformat; | |
49fb5799 | 1086 | |
e50517d9 GM |
1087 | case L_('S'): |
1088 | if (modifier == L_('E')) | |
1089 | goto bad_format; | |
49fb5799 | 1090 | |
e50517d9 | 1091 | DO_NUMBER (2, tp->tm_sec); |
49fb5799 | 1092 | |
e50517d9 GM |
1093 | case L_('s'): /* GNU extension. */ |
1094 | { | |
1095 | struct tm ltm; | |
1096 | time_t t; | |
49fb5799 | 1097 | |
e50517d9 GM |
1098 | ltm = *tp; |
1099 | t = mktime (<m); | |
49fb5799 | 1100 | |
e50517d9 GM |
1101 | /* Generate string value for T using time_t arithmetic; |
1102 | this works even if sizeof (long) < sizeof (time_t). */ | |
49fb5799 | 1103 | |
e50517d9 GM |
1104 | bufp = buf + sizeof (buf) / sizeof (buf[0]); |
1105 | negative_number = t < 0; | |
49fb5799 | 1106 | |
e50517d9 GM |
1107 | do |
1108 | { | |
1109 | int d = t % 10; | |
1110 | t /= 10; | |
49fb5799 | 1111 | |
e50517d9 GM |
1112 | if (negative_number) |
1113 | { | |
1114 | d = -d; | |
49fb5799 | 1115 | |
e50517d9 GM |
1116 | /* Adjust if division truncates to minus infinity. */ |
1117 | if (0 < -1 % 10 && d < 0) | |
1118 | { | |
1119 | t++; | |
1120 | d += 10; | |
1121 | } | |
1122 | } | |
49fb5799 | 1123 | |
e50517d9 GM |
1124 | *--bufp = d + L_('0'); |
1125 | } | |
1126 | while (t != 0); | |
49fb5799 | 1127 | |
e50517d9 GM |
1128 | digits = 1; |
1129 | goto do_number_sign_and_padding; | |
1130 | } | |
49fb5799 | 1131 | |
e50517d9 GM |
1132 | case L_('X'): |
1133 | if (modifier == L_('O')) | |
1134 | goto bad_format; | |
49fb5799 | 1135 | #ifdef _NL_CURRENT |
e50517d9 GM |
1136 | if (! (modifier == L_('E') |
1137 | && (*(subfmt = (CHAR_T *) _NL_CURRENT (LC_TIME, | |
1138 | NLW(ERA_T_FMT))) | |
1139 | != L_('\0')))) | |
1140 | subfmt = (CHAR_T *) _NL_CURRENT (LC_TIME, NLW(T_FMT)); | |
1141 | goto subformat; | |
4b7c78fc UD |
1142 | #else |
1143 | # if HAVE_STRFTIME | |
e50517d9 | 1144 | goto underlying_strftime; |
4b7c78fc | 1145 | # else |
e50517d9 | 1146 | /* Fall through. */ |
4b7c78fc UD |
1147 | # endif |
1148 | #endif | |
e50517d9 GM |
1149 | case L_('T'): /* POSIX.2 extension. */ |
1150 | subfmt = L_("%H:%M:%S"); | |
1151 | goto subformat; | |
1152 | ||
1153 | case L_('t'): /* POSIX.2 extension. */ | |
1154 | add (1, *p = L_('\t')); | |
1155 | break; | |
1156 | ||
1157 | case L_('u'): /* POSIX.2 extension. */ | |
1158 | DO_NUMBER (1, (tp->tm_wday - 1 + 7) % 7 + 1); | |
1159 | ||
1160 | case L_('U'): | |
1161 | if (modifier == L_('E')) | |
1162 | goto bad_format; | |
1163 | ||
1164 | DO_NUMBER (2, (tp->tm_yday - tp->tm_wday + 7) / 7); | |
1165 | ||
1166 | case L_('V'): | |
1167 | case L_('g'): /* GNU extension. */ | |
1168 | case L_('G'): /* GNU extension. */ | |
1169 | if (modifier == L_('E')) | |
1170 | goto bad_format; | |
1171 | { | |
1172 | int year = tp->tm_year + TM_YEAR_BASE; | |
1173 | int days = iso_week_days (tp->tm_yday, tp->tm_wday); | |
1174 | ||
1175 | if (days < 0) | |
1176 | { | |
1177 | /* This ISO week belongs to the previous year. */ | |
1178 | year--; | |
1179 | days = iso_week_days (tp->tm_yday + (365 + __isleap (year)), | |
1180 | tp->tm_wday); | |
1181 | } | |
1182 | else | |
1183 | { | |
1184 | int d = iso_week_days (tp->tm_yday - (365 + __isleap (year)), | |
1185 | tp->tm_wday); | |
1186 | if (0 <= d) | |
1187 | { | |
1188 | /* This ISO week belongs to the next year. */ | |
1189 | year++; | |
1190 | days = d; | |
1191 | } | |
1192 | } | |
1193 | ||
1194 | switch (*f) | |
1195 | { | |
1196 | case L_('g'): | |
1197 | DO_NUMBER (2, (year % 100 + 100) % 100); | |
1198 | ||
1199 | case L_('G'): | |
1200 | DO_NUMBER (1, year); | |
1201 | ||
1202 | default: | |
1203 | DO_NUMBER (2, days / 7 + 1); | |
1204 | } | |
1205 | } | |
1206 | ||
1207 | case L_('W'): | |
1208 | if (modifier == L_('E')) | |
1209 | goto bad_format; | |
1210 | ||
1211 | DO_NUMBER (2, (tp->tm_yday - (tp->tm_wday - 1 + 7) % 7 + 7) / 7); | |
1212 | ||
1213 | case L_('w'): | |
1214 | if (modifier == L_('E')) | |
1215 | goto bad_format; | |
1216 | ||
1217 | DO_NUMBER (1, tp->tm_wday); | |
1218 | ||
1219 | case L_('Y'): | |
1220 | if (modifier == 'E') | |
1221 | { | |
4b7c78fc | 1222 | #if HAVE_STRUCT_ERA_ENTRY |
e50517d9 GM |
1223 | struct era_entry *era = _nl_get_era_entry (tp); |
1224 | if (era) | |
1225 | { | |
1226 | # ifdef COMPILE_WIDE | |
1227 | subfmt = era->era_wformat; | |
1228 | # else | |
1229 | subfmt = era->era_format; | |
1230 | # endif | |
1231 | goto subformat; | |
1232 | } | |
4b7c78fc UD |
1233 | #else |
1234 | # if HAVE_STRFTIME | |
e50517d9 | 1235 | goto underlying_strftime; |
4b7c78fc | 1236 | # endif |
49fb5799 | 1237 | #endif |
e50517d9 GM |
1238 | } |
1239 | if (modifier == L_('O')) | |
1240 | goto bad_format; | |
1241 | else | |
1242 | DO_NUMBER (1, tp->tm_year + TM_YEAR_BASE); | |
1243 | ||
1244 | case L_('y'): | |
1245 | if (modifier == L_('E')) | |
1246 | { | |
4b7c78fc | 1247 | #if HAVE_STRUCT_ERA_ENTRY |
e50517d9 GM |
1248 | struct era_entry *era = _nl_get_era_entry (tp); |
1249 | if (era) | |
1250 | { | |
1251 | int delta = tp->tm_year - era->start_date[0]; | |
1252 | DO_NUMBER (1, (era->offset | |
1253 | + delta * era->absolute_direction)); | |
1254 | } | |
4b7c78fc UD |
1255 | #else |
1256 | # if HAVE_STRFTIME | |
e50517d9 | 1257 | goto underlying_strftime; |
4b7c78fc | 1258 | # endif |
49fb5799 | 1259 | #endif |
e50517d9 GM |
1260 | } |
1261 | DO_NUMBER (2, (tp->tm_year % 100 + 100) % 100); | |
49fb5799 | 1262 | |
e50517d9 GM |
1263 | case L_('Z'): |
1264 | if (change_case) | |
1265 | { | |
1266 | to_uppcase = 0; | |
1267 | to_lowcase = 1; | |
1268 | } | |
68c45bf0 PE |
1269 | |
1270 | #if HAVE_TZNAME | |
e50517d9 GM |
1271 | /* The tzset() call might have changed the value. */ |
1272 | if (!(zone && *zone) && tp->tm_isdst >= 0) | |
1273 | zone = tzname[tp->tm_isdst]; | |
68c45bf0 | 1274 | #endif |
e50517d9 GM |
1275 | if (! zone) |
1276 | zone = ""; /* POSIX.2 requires the empty string here. */ | |
1277 | ||
1278 | #ifdef COMPILE_WIDE | |
1279 | { | |
1280 | /* The zone string is always given in multibyte form. We have | |
1281 | to transform it first. */ | |
1282 | wchar_t *wczone; | |
1283 | size_t len; | |
1284 | widen (zone, wczone, len); | |
1285 | cpy (len, wczone); | |
1286 | } | |
1287 | #else | |
1288 | cpy (strlen (zone), zone); | |
1289 | #endif | |
1290 | break; | |
49fb5799 | 1291 | |
e50517d9 GM |
1292 | case L_('z'): /* GNU extension. */ |
1293 | if (tp->tm_isdst < 0) | |
1294 | break; | |
49fb5799 | 1295 | |
e50517d9 GM |
1296 | { |
1297 | int diff; | |
49fb5799 | 1298 | #if HAVE_TM_GMTOFF |
e50517d9 | 1299 | diff = tp->tm_gmtoff; |
49fb5799 | 1300 | #else |
e50517d9 GM |
1301 | if (ut) |
1302 | diff = 0; | |
1303 | else | |
1304 | { | |
1305 | struct tm gtm; | |
1306 | struct tm ltm; | |
1307 | time_t lt; | |
1308 | ||
1309 | ltm = *tp; | |
1310 | lt = mktime (<m); | |
1311 | ||
1312 | if (lt == (time_t) -1) | |
1313 | { | |
1314 | /* mktime returns -1 for errors, but -1 is also a | |
1315 | valid time_t value. Check whether an error really | |
1316 | occurred. */ | |
1317 | struct tm tm; | |
1318 | ||
1319 | if (! my_strftime_localtime_r (<, &tm) | |
1320 | || ((ltm.tm_sec ^ tm.tm_sec) | |
1321 | | (ltm.tm_min ^ tm.tm_min) | |
1322 | | (ltm.tm_hour ^ tm.tm_hour) | |
1323 | | (ltm.tm_mday ^ tm.tm_mday) | |
1324 | | (ltm.tm_mon ^ tm.tm_mon) | |
1325 | | (ltm.tm_year ^ tm.tm_year))) | |
1326 | break; | |
1327 | } | |
1328 | ||
1329 | if (! my_strftime_gmtime_r (<, >m)) | |
1330 | break; | |
1331 | ||
1332 | diff = tm_diff (<m, >m); | |
1333 | } | |
49fb5799 PE |
1334 | #endif |
1335 | ||
e50517d9 GM |
1336 | if (diff < 0) |
1337 | { | |
1338 | add (1, *p = L_('-')); | |
1339 | diff = -diff; | |
1340 | } | |
1341 | else | |
1342 | add (1, *p = L_('+')); | |
1343 | ||
1344 | diff /= 60; | |
1345 | DO_NUMBER (4, (diff / 60) * 100 + diff % 60); | |
1346 | } | |
1347 | ||
1348 | case L_('\0'): /* GNU extension: % at end of format. */ | |
1349 | --f; | |
1350 | /* Fall through. */ | |
1351 | default: | |
1352 | /* Unknown format; output the format, including the '%', | |
1353 | since this is most likely the right thing to do if a | |
1354 | multibyte string has been misparsed. */ | |
1355 | bad_format: | |
1356 | { | |
1357 | int flen; | |
1358 | for (flen = 1; f[1 - flen] != L_('%'); flen++) | |
1359 | continue; | |
1360 | cpy (flen, &f[1 - flen]); | |
1361 | } | |
1362 | break; | |
1363 | } | |
49fb5799 PE |
1364 | } |
1365 | ||
68c45bf0 | 1366 | if (p && maxsize != 0) |
e50517d9 | 1367 | *p = L_('\0'); |
49fb5799 PE |
1368 | return i; |
1369 | } | |
e50517d9 GM |
1370 | |
1371 | ||
1372 | #ifdef emacs | |
1373 | /* For Emacs we have a separate interface which corresponds to the normal | |
1374 | strftime function and does not have the extra information whether the | |
1375 | TP arguments comes from a `gmtime' call or not. */ | |
1376 | size_t | |
1377 | emacs_strftime (s, maxsize, format, tp) | |
1378 | char *s; | |
1379 | size_t maxsize; | |
1380 | const char *format; | |
1381 | const struct tm *tp; | |
1382 | { | |
1383 | return my_strftime (s, maxsize, format, tp, 0); | |
1384 | } | |
1385 | #endif | |
1386 |