Commit | Line | Data |
---|---|---|
0b5538bd | 1 | /* Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, |
429ab54e GM |
2 | 2001, 2002, 2003, 2004, 2005, 2006, 2007 |
3 | Free Software Foundation, Inc. | |
880c108d | 4 | |
fcf08f5b DL |
5 | NOTE: The canonical source of this file is maintained with gnulib. |
6 | Bugs can be reported to bug-gnulib@gnu.org. | |
7 | ||
e50517d9 | 8 | This file is part of the GNU Emacs. |
8ce9b63e | 9 | |
fcf08f5b | 10 | This program is free software; you can redistribute it and/or |
423a1f3c | 11 | modify it under the terms of the GNU General Public License |
fcf08f5b DL |
12 | as published by the Free Software Foundation; either version 2, or |
13 | (at your option) any later version. | |
8ce9b63e | 14 | |
fcf08f5b | 15 | This program is distributed in the hope that it will be useful, |
89752145 | 16 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
e50517d9 | 17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
423a1f3c | 18 | General Public License for more details. |
8ce9b63e | 19 | |
423a1f3c JB |
20 | You should have received a copy of the GNU General Public |
21 | License along with the GNU C Library; see the file COPYING. If not, | |
4fc5845f LK |
22 | write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
23 | Boston, MA 02110-1301, USA. */ | |
49fb5799 PE |
24 | |
25 | #ifdef HAVE_CONFIG_H | |
26 | # include <config.h> | |
27 | #endif | |
28 | ||
29 | #ifdef _LIBC | |
30 | # define HAVE_LIMITS_H 1 | |
31 | # define HAVE_MBLEN 1 | |
32 | # define HAVE_MBRLEN 1 | |
33 | # define HAVE_STRUCT_ERA_ENTRY 1 | |
34 | # define HAVE_TM_GMTOFF 1 | |
35 | # define HAVE_TM_ZONE 1 | |
36 | # define HAVE_TZNAME 1 | |
37 | # define HAVE_TZSET 1 | |
38 | # define MULTIBYTE_IS_FORMAT_SAFE 1 | |
39 | # define STDC_HEADERS 1 | |
49fb5799 PE |
40 | # include "../locale/localeinfo.h" |
41 | #endif | |
42 | ||
43 | #include <ctype.h> | |
fcf08f5b | 44 | #include <sys/types.h> /* Some systems define `time_t' here. */ |
49fb5799 PE |
45 | |
46 | #ifdef TIME_WITH_SYS_TIME | |
47 | # include <sys/time.h> | |
48 | # include <time.h> | |
49 | #else | |
50 | # ifdef HAVE_SYS_TIME_H | |
51 | # include <sys/time.h> | |
52 | # else | |
53 | # include <time.h> | |
54 | # endif | |
55 | #endif | |
56 | #if HAVE_TZNAME | |
03695ace | 57 | #ifndef USE_CRT_DLL |
49fb5799 PE |
58 | extern char *tzname[]; |
59 | #endif | |
03695ace | 60 | #endif |
49fb5799 PE |
61 | |
62 | /* Do multibyte processing if multibytes are supported, unless | |
63 | multibyte sequences are safe in formats. Multibyte sequences are | |
64 | safe if they cannot contain byte sequences that look like format | |
65 | conversion specifications. The GNU C Library uses UTF8 multibyte | |
66 | encoding, which is safe for formats, but strftime.c can be used | |
67 | with other C libraries that use unsafe encodings. */ | |
68 | #define DO_MULTIBYTE (HAVE_MBLEN && ! MULTIBYTE_IS_FORMAT_SAFE) | |
69 | ||
70 | #if DO_MULTIBYTE | |
71 | # if HAVE_MBRLEN | |
72 | # include <wchar.h> | |
609b291d NR |
73 | # ifdef HAVE_SYS__MBSTATE_T_H /* previously tested __hpux */ |
74 | # include <sys/_mbstate_t.h> | |
75 | # endif | |
02521061 RS |
76 | # if !defined (mbsinit) && !defined (HAVE_MBSINIT) |
77 | # define mbsinit(ps) 1 | |
78 | # endif /* !defined (mbsinit) && !defined (HAVE_MBSINIT) */ | |
49fb5799 PE |
79 | # else |
80 | /* Simulate mbrlen with mblen as best we can. */ | |
81 | # define mbstate_t int | |
82 | # define mbrlen(s, n, ps) mblen (s, n) | |
83 | # define mbsinit(ps) (*(ps) == 0) | |
84 | # endif | |
85 | static const mbstate_t mbstate_zero; | |
86 | #endif | |
87 | ||
1da6faed | 88 | #ifdef HAVE_LIMITS_H |
49fb5799 PE |
89 | # include <limits.h> |
90 | #endif | |
91 | ||
1da6faed | 92 | #ifdef STDC_HEADERS |
49fb5799 PE |
93 | # include <stddef.h> |
94 | # include <stdlib.h> | |
fcf08f5b | 95 | # include <string.h> |
49fb5799 | 96 | #else |
1b65a66c PE |
97 | # ifndef HAVE_MEMCPY |
98 | # define memcpy(d, s, n) bcopy ((s), (d), (n)) | |
99 | # endif | |
49fb5799 PE |
100 | #endif |
101 | ||
e50517d9 GM |
102 | #ifdef COMPILE_WIDE |
103 | # include <endian.h> | |
104 | # define CHAR_T wchar_t | |
105 | # define UCHAR_T unsigned int | |
106 | # define L_(Str) L##Str | |
107 | # define NLW(Sym) _NL_W##Sym | |
108 | ||
109 | # define MEMCPY(d, s, n) __wmemcpy (d, s, n) | |
110 | # define STRLEN(s) __wcslen (s) | |
111 | ||
4e941b8e | 112 | #else |
e50517d9 GM |
113 | # define CHAR_T char |
114 | # define UCHAR_T unsigned char | |
115 | # define L_(Str) Str | |
116 | # define NLW(Sym) Sym | |
117 | ||
118 | # if !defined STDC_HEADERS && !defined HAVE_MEMCPY | |
119 | # define MEMCPY(d, s, n) bcopy ((s), (d), (n)) | |
120 | # else | |
121 | # define MEMCPY(d, s, n) memcpy ((d), (s), (n)) | |
122 | # endif | |
123 | # define STRLEN(s) strlen (s) | |
124 | ||
125 | # ifdef _LIBC | |
126 | # define MEMPCPY(d, s, n) __mempcpy (d, s, n) | |
127 | # else | |
128 | # ifndef HAVE_MEMPCPY | |
129 | # define MEMPCPY(d, s, n) ((void *) ((char *) memcpy (d, s, n) + (n))) | |
130 | # endif | |
4e941b8e UD |
131 | # endif |
132 | #endif | |
133 | ||
49fb5799 | 134 | #ifndef __P |
fcf08f5b | 135 | # if defined __GNUC__ || (defined __STDC__ && __STDC__) || defined (PROTOTYPES) |
49fb5799 PE |
136 | # define __P(args) args |
137 | # else | |
138 | # define __P(args) () | |
139 | # endif /* GCC. */ | |
140 | #endif /* Not __P. */ | |
141 | ||
142 | #ifndef PTR | |
143 | # ifdef __STDC__ | |
144 | # define PTR void * | |
145 | # else | |
146 | # define PTR char * | |
147 | # endif | |
148 | #endif | |
149 | ||
150 | #ifndef CHAR_BIT | |
151 | # define CHAR_BIT 8 | |
152 | #endif | |
153 | ||
154 | #ifndef NULL | |
155 | # define NULL 0 | |
156 | #endif | |
157 | ||
158 | #define TYPE_SIGNED(t) ((t) -1 < 0) | |
159 | ||
160 | /* Bound on length of the string representing an integer value of type t. | |
161 | Subtract one for the sign bit if t is signed; | |
162 | 302 / 1000 is log10 (2) rounded up; | |
163 | add one for integer division truncation; | |
164 | add one more for a minus sign if t is signed. */ | |
165 | #define INT_STRLEN_BOUND(t) \ | |
68c45bf0 | 166 | ((sizeof (t) * CHAR_BIT - TYPE_SIGNED (t)) * 302 / 1000 + 1 + TYPE_SIGNED (t)) |
49fb5799 PE |
167 | |
168 | #define TM_YEAR_BASE 1900 | |
169 | ||
170 | #ifndef __isleap | |
171 | /* Nonzero if YEAR is a leap year (every 4 years, | |
172 | except every 100th isn't, and every 400th is). */ | |
fcf08f5b | 173 | # define __isleap(year) \ |
49fb5799 PE |
174 | ((year) % 4 == 0 && ((year) % 100 != 0 || (year) % 400 == 0)) |
175 | #endif | |
176 | ||
177 | ||
178 | #ifdef _LIBC | |
68c45bf0 PE |
179 | # define my_strftime_gmtime_r __gmtime_r |
180 | # define my_strftime_localtime_r __localtime_r | |
49fb5799 PE |
181 | # define tzname __tzname |
182 | # define tzset __tzset | |
183 | #else | |
68c45bf0 PE |
184 | |
185 | /* If we're a strftime substitute in a GNU program, then prefer gmtime | |
186 | to gmtime_r, since many gmtime_r implementations are buggy. | |
187 | Similarly for localtime_r. */ | |
188 | ||
189 | # if ! HAVE_TM_GMTOFF | |
190 | static struct tm *my_strftime_gmtime_r __P ((const time_t *, struct tm *)); | |
49fb5799 | 191 | static struct tm * |
68c45bf0 | 192 | my_strftime_gmtime_r (t, tp) |
49fb5799 PE |
193 | const time_t *t; |
194 | struct tm *tp; | |
195 | { | |
196 | struct tm *l = gmtime (t); | |
197 | if (! l) | |
198 | return 0; | |
199 | *tp = *l; | |
200 | return tp; | |
201 | } | |
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 | } | |
880c108d | 215 | # endif /* ! HAVE_TM_GMTOFF */ |
649e97a3 | 216 | #endif /* ! defined _LIBC */ |
49fb5799 PE |
217 | |
218 | ||
1b65a66c | 219 | #if !defined memset && !defined HAVE_MEMSET && !defined _LIBC |
49fb5799 PE |
220 | /* Some systems lack the `memset' function and we don't want to |
221 | introduce additional dependencies. */ | |
c72e6644 RS |
222 | /* The SGI compiler reportedly barfs on the trailing null |
223 | if we use a string constant as the initializer. 28 June 1997, rms. */ | |
e50517d9 GM |
224 | static const CHAR_T spaces[16] = /* " " */ |
225 | { | |
226 | L_(' '),L_(' '),L_(' '),L_(' '),L_(' '),L_(' '),L_(' '),L_(' '), | |
227 | L_(' '),L_(' '),L_(' '),L_(' '),L_(' '),L_(' '),L_(' '),L_(' ') | |
228 | }; | |
229 | static const CHAR_T zeroes[16] = /* "0000000000000000" */ | |
230 | { | |
231 | L_('0'),L_('0'),L_('0'),L_('0'),L_('0'),L_('0'),L_('0'),L_('0'), | |
232 | L_('0'),L_('0'),L_('0'),L_('0'),L_('0'),L_('0'),L_('0'),L_('0') | |
233 | }; | |
49fb5799 PE |
234 | |
235 | # define memset_space(P, Len) \ | |
fcf08f5b DL |
236 | do { \ |
237 | int _len = (Len); \ | |
238 | \ | |
239 | do \ | |
240 | { \ | |
241 | int _this = _len > 16 ? 16 : _len; \ | |
242 | (P) = MEMPCPY ((P), spaces, _this * sizeof (CHAR_T)); \ | |
243 | _len -= _this; \ | |
244 | } \ | |
245 | while (_len > 0); \ | |
49fb5799 | 246 | } while (0) |
098401cf PE |
247 | |
248 | # define memset_zero(P, Len) \ | |
fcf08f5b DL |
249 | do { \ |
250 | int _len = (Len); \ | |
251 | \ | |
252 | do \ | |
253 | { \ | |
254 | int _this = _len > 16 ? 16 : _len; \ | |
255 | (P) = MEMPCPY ((P), zeroes, _this * sizeof (CHAR_T)); \ | |
256 | _len -= _this; \ | |
257 | } \ | |
258 | while (_len > 0); \ | |
098401cf | 259 | } while (0) |
49fb5799 | 260 | #else |
e50517d9 GM |
261 | # ifdef COMPILE_WIDE |
262 | # define memset_space(P, Len) (wmemset ((P), L' ', (Len)), (P) += (Len)) | |
263 | # define memset_zero(P, Len) (wmemset ((P), L'0', (Len)), (P) += (Len)) | |
264 | # else | |
265 | # define memset_space(P, Len) (memset ((P), ' ', (Len)), (P) += (Len)) | |
266 | # define memset_zero(P, Len) (memset ((P), '0', (Len)), (P) += (Len)) | |
267 | # endif | |
49fb5799 PE |
268 | #endif |
269 | ||
fcf08f5b DL |
270 | #define add(n, f) \ |
271 | do \ | |
272 | { \ | |
273 | int _n = (n); \ | |
274 | int _delta = width - _n; \ | |
275 | int _incr = _n + (_delta > 0 ? _delta : 0); \ | |
276 | if ((size_t) _incr >= maxsize - i) \ | |
277 | return 0; \ | |
278 | if (p) \ | |
279 | { \ | |
280 | if (_delta > 0) \ | |
281 | { \ | |
282 | if (pad == L_('0')) \ | |
283 | memset_zero (p, _delta); \ | |
284 | else \ | |
285 | memset_space (p, _delta); \ | |
286 | } \ | |
287 | f; \ | |
288 | p += _n; \ | |
289 | } \ | |
290 | i += _incr; \ | |
49fb5799 PE |
291 | } while (0) |
292 | ||
1b65a66c | 293 | #define cpy(n, s) \ |
fcf08f5b DL |
294 | add ((n), \ |
295 | if (to_lowcase) \ | |
296 | memcpy_lowcase (p, (s), _n LOCALE_ARG); \ | |
297 | else if (to_uppcase) \ | |
298 | memcpy_uppcase (p, (s), _n LOCALE_ARG); \ | |
299 | else \ | |
300 | MEMCPY ((PTR) p, (const PTR) (s), _n)) | |
e50517d9 GM |
301 | |
302 | #ifdef COMPILE_WIDE | |
fcf08f5b DL |
303 | # ifndef USE_IN_EXTENDED_LOCALE_MODEL |
304 | # undef __mbsrtowcs_l | |
305 | # define __mbsrtowcs_l(d, s, l, st, loc) __mbsrtowcs (d, s, l, st) | |
306 | # endif | |
e50517d9 | 307 | # define widen(os, ws, l) \ |
fcf08f5b DL |
308 | { \ |
309 | mbstate_t __st; \ | |
310 | const char *__s = os; \ | |
311 | memset (&__st, '\0', sizeof (__st)); \ | |
312 | l = __mbsrtowcs_l (NULL, &__s, 0, &__st, loc); \ | |
313 | ws = (wchar_t *) alloca ((l + 1) * sizeof (wchar_t)); \ | |
314 | (void) __mbsrtowcs_l (ws, &__s, l, &__st, loc); \ | |
e50517d9 GM |
315 | } |
316 | #endif | |
49fb5799 PE |
317 | |
318 | ||
fcf08f5b DL |
319 | #if defined _LIBC && defined USE_IN_EXTENDED_LOCALE_MODEL |
320 | /* We use this code also for the extended locale handling where the | |
321 | function gets as an additional argument the locale which has to be | |
322 | used. To access the values we have to redefine the _NL_CURRENT | |
323 | macro. */ | |
324 | # define strftime __strftime_l | |
325 | # define wcsftime __wcsftime_l | |
326 | # undef _NL_CURRENT | |
327 | # define _NL_CURRENT(category, item) \ | |
328 | (current->values[_NL_ITEM_INDEX (item)].string) | |
329 | # define LOCALE_PARAM , loc | |
330 | # define LOCALE_ARG , loc | |
331 | # define LOCALE_PARAM_DECL __locale_t loc; | |
332 | # define LOCALE_PARAM_PROTO , __locale_t loc | |
333 | # define HELPER_LOCALE_ARG , current | |
334 | #else | |
335 | # define LOCALE_PARAM | |
336 | # define LOCALE_PARAM_PROTO | |
337 | # define LOCALE_ARG | |
338 | # define LOCALE_PARAM_DECL | |
339 | # ifdef _LIBC | |
340 | # define HELPER_LOCALE_ARG , _NL_CURRENT_DATA (LC_TIME) | |
341 | # else | |
342 | # define HELPER_LOCALE_ARG | |
343 | # endif | |
344 | #endif | |
345 | ||
e50517d9 | 346 | #ifdef COMPILE_WIDE |
fcf08f5b DL |
347 | # ifdef USE_IN_EXTENDED_LOCALE_MODEL |
348 | # define TOUPPER(Ch, L) __towupper_l (Ch, L) | |
349 | # define TOLOWER(Ch, L) __towlower_l (Ch, L) | |
350 | # else | |
351 | # define TOUPPER(Ch, L) towupper (Ch) | |
352 | # define TOLOWER(Ch, L) towlower (Ch) | |
353 | # endif | |
49fb5799 | 354 | #else |
e50517d9 | 355 | # ifdef _LIBC |
fcf08f5b DL |
356 | # ifdef USE_IN_EXTENDED_LOCALE_MODEL |
357 | # define TOUPPER(Ch, L) __toupper_l (Ch, L) | |
358 | # define TOLOWER(Ch, L) __tolower_l (Ch, L) | |
359 | # else | |
360 | # define TOUPPER(Ch, L) toupper (Ch) | |
361 | # define TOLOWER(Ch, L) tolower (Ch) | |
362 | # endif | |
e50517d9 | 363 | # else |
fcf08f5b DL |
364 | # define TOUPPER(Ch, L) (islower (Ch) ? toupper (Ch) : (Ch)) |
365 | # define TOLOWER(Ch, L) (isupper (Ch) ? tolower (Ch) : (Ch)) | |
e50517d9 | 366 | # endif |
49fb5799 PE |
367 | #endif |
368 | /* We don't use `isdigit' here since the locale dependent | |
369 | interpretation is not what we want here. We only need to accept | |
370 | the arabic digits in the ASCII range. One day there is perhaps a | |
371 | more reliable way to accept other sets of digits. */ | |
e50517d9 | 372 | #define ISDIGIT(Ch) ((unsigned int) (Ch) - L_('0') <= 9) |
49fb5799 | 373 | |
e50517d9 | 374 | static CHAR_T *memcpy_lowcase __P ((CHAR_T *dest, const CHAR_T *src, |
fcf08f5b | 375 | size_t len LOCALE_PARAM_PROTO)); |
49fb5799 | 376 | |
e50517d9 | 377 | static CHAR_T * |
fcf08f5b | 378 | memcpy_lowcase (dest, src, len LOCALE_PARAM) |
e50517d9 GM |
379 | CHAR_T *dest; |
380 | const CHAR_T *src; | |
49fb5799 | 381 | size_t len; |
fcf08f5b | 382 | LOCALE_PARAM_DECL |
49fb5799 PE |
383 | { |
384 | while (len-- > 0) | |
fcf08f5b | 385 | dest[len] = TOLOWER ((UCHAR_T) src[len], loc); |
49fb5799 PE |
386 | return dest; |
387 | } | |
388 | ||
e50517d9 | 389 | static CHAR_T *memcpy_uppcase __P ((CHAR_T *dest, const CHAR_T *src, |
fcf08f5b | 390 | size_t len LOCALE_PARAM_PROTO)); |
49fb5799 | 391 | |
e50517d9 | 392 | static CHAR_T * |
fcf08f5b | 393 | memcpy_uppcase (dest, src, len LOCALE_PARAM) |
e50517d9 GM |
394 | CHAR_T *dest; |
395 | const CHAR_T *src; | |
49fb5799 | 396 | size_t len; |
fcf08f5b | 397 | LOCALE_PARAM_DECL |
49fb5799 PE |
398 | { |
399 | while (len-- > 0) | |
fcf08f5b | 400 | dest[len] = TOUPPER ((UCHAR_T) src[len], loc); |
49fb5799 PE |
401 | return dest; |
402 | } | |
403 | ||
1b65a66c | 404 | |
49fb5799 PE |
405 | #if ! HAVE_TM_GMTOFF |
406 | /* Yield the difference between *A and *B, | |
407 | measured in seconds, ignoring leap seconds. */ | |
1b65a66c | 408 | # define tm_diff ftime_tm_diff |
49fb5799 PE |
409 | static int tm_diff __P ((const struct tm *, const struct tm *)); |
410 | static int | |
411 | tm_diff (a, b) | |
412 | const struct tm *a; | |
413 | const struct tm *b; | |
414 | { | |
415 | /* Compute intervening leap days correctly even if year is negative. | |
416 | Take care to avoid int overflow in leap day calculations, | |
417 | but it's OK to assume that A and B are close to each other. */ | |
418 | int a4 = (a->tm_year >> 2) + (TM_YEAR_BASE >> 2) - ! (a->tm_year & 3); | |
419 | int b4 = (b->tm_year >> 2) + (TM_YEAR_BASE >> 2) - ! (b->tm_year & 3); | |
420 | int a100 = a4 / 25 - (a4 % 25 < 0); | |
421 | int b100 = b4 / 25 - (b4 % 25 < 0); | |
422 | int a400 = a100 >> 2; | |
423 | int b400 = b100 >> 2; | |
424 | int intervening_leap_days = (a4 - b4) - (a100 - b100) + (a400 - b400); | |
425 | int years = a->tm_year - b->tm_year; | |
426 | int days = (365 * years + intervening_leap_days | |
fcf08f5b | 427 | + (a->tm_yday - b->tm_yday)); |
49fb5799 | 428 | return (60 * (60 * (24 * days + (a->tm_hour - b->tm_hour)) |
fcf08f5b DL |
429 | + (a->tm_min - b->tm_min)) |
430 | + (a->tm_sec - b->tm_sec)); | |
49fb5799 PE |
431 | } |
432 | #endif /* ! HAVE_TM_GMTOFF */ | |
433 | ||
434 | ||
435 | ||
436 | /* The number of days from the first day of the first ISO week of this | |
437 | year to the year day YDAY with week day WDAY. ISO weeks start on | |
438 | Monday; the first ISO week has the year's first Thursday. YDAY may | |
439 | be as small as YDAY_MINIMUM. */ | |
440 | #define ISO_WEEK_START_WDAY 1 /* Monday */ | |
441 | #define ISO_WEEK1_WDAY 4 /* Thursday */ | |
442 | #define YDAY_MINIMUM (-366) | |
443 | static int iso_week_days __P ((int, int)); | |
444 | #ifdef __GNUC__ | |
ffa0434b | 445 | __inline__ |
49fb5799 PE |
446 | #endif |
447 | static int | |
448 | iso_week_days (yday, wday) | |
449 | int yday; | |
450 | int wday; | |
451 | { | |
452 | /* Add enough to the first operand of % to make it nonnegative. */ | |
453 | int big_enough_multiple_of_7 = (-YDAY_MINIMUM / 7 + 2) * 7; | |
454 | return (yday | |
fcf08f5b DL |
455 | - (yday - wday + ISO_WEEK1_WDAY + big_enough_multiple_of_7) % 7 |
456 | + ISO_WEEK1_WDAY - ISO_WEEK_START_WDAY); | |
49fb5799 PE |
457 | } |
458 | ||
459 | ||
4b7c78fc | 460 | #if !(defined _NL_CURRENT || HAVE_STRFTIME) |
e50517d9 | 461 | static CHAR_T const weekday_name[][10] = |
49fb5799 | 462 | { |
e50517d9 GM |
463 | L_("Sunday"), L_("Monday"), L_("Tuesday"), L_("Wednesday"), |
464 | L_("Thursday"), L_("Friday"), L_("Saturday") | |
49fb5799 | 465 | }; |
e50517d9 | 466 | static CHAR_T const month_name[][10] = |
49fb5799 | 467 | { |
e50517d9 GM |
468 | L_("January"), L_("February"), L_("March"), L_("April"), L_("May"), |
469 | L_("June"), L_("July"), L_("August"), L_("September"), L_("October"), | |
470 | L_("November"), L_("December") | |
49fb5799 PE |
471 | }; |
472 | #endif | |
473 | ||
474 | ||
fcf08f5b DL |
475 | /* When compiling this file, GNU applications can #define my_strftime |
476 | to a symbol (typically nstrftime) to get an extended strftime with | |
477 | extra arguments UT and NS. */ | |
478 | ||
479 | #ifdef my_strftime | |
480 | # define extra_args , ut, ns | |
481 | # define extra_args_spec int ut; int ns; | |
482 | # define extra_args_spec_iso , int ut, int ns | |
4b7c78fc | 483 | #else |
e50517d9 GM |
484 | # ifdef COMPILE_WIDE |
485 | # define my_strftime wcsftime | |
fcf08f5b | 486 | # define nl_get_alt_digit _nl_get_walt_digit |
e50517d9 GM |
487 | # else |
488 | # define my_strftime strftime | |
fcf08f5b | 489 | # define nl_get_alt_digit _nl_get_alt_digit |
e50517d9 | 490 | # endif |
fcf08f5b DL |
491 | # define extra_args |
492 | # define extra_args_spec | |
493 | # define extra_args_spec_iso | |
68c45bf0 PE |
494 | /* We don't have this information in general. */ |
495 | # define ut 0 | |
fcf08f5b | 496 | # define ns 0 |
4b7c78fc UD |
497 | #endif |
498 | ||
ea456eb4 | 499 | #if !defined _LIBC && !defined(WINDOWSNT) && HAVE_TZNAME && HAVE_TZSET |
49fb5799 PE |
500 | /* Solaris 2.5 tzset sometimes modifies the storage returned by localtime. |
501 | Work around this bug by copying *tp before it might be munged. */ | |
502 | size_t _strftime_copytm __P ((char *, size_t, const char *, | |
fcf08f5b | 503 | const struct tm * extra_args_spec_iso)); |
49fb5799 | 504 | size_t |
fcf08f5b | 505 | my_strftime (s, maxsize, format, tp extra_args) |
e50517d9 | 506 | CHAR_T *s; |
49fb5799 | 507 | size_t maxsize; |
e50517d9 | 508 | const CHAR_T *format; |
49fb5799 | 509 | const struct tm *tp; |
fcf08f5b | 510 | extra_args_spec |
49fb5799 PE |
511 | { |
512 | struct tm tmcopy; | |
513 | tmcopy = *tp; | |
fcf08f5b | 514 | return _strftime_copytm (s, maxsize, format, &tmcopy extra_args); |
49fb5799 | 515 | } |
4b7c78fc | 516 | # undef my_strftime |
ea456eb4 | 517 | # define my_strftime _strftime_copytm |
49fb5799 PE |
518 | #endif |
519 | ||
520 | ||
521 | /* Write information from TP into S according to the format | |
522 | string FORMAT, writing no more that MAXSIZE characters | |
523 | (including the terminating '\0') and returning number of | |
524 | characters written. If S is NULL, nothing will be written | |
525 | anywhere, so to determine how many characters would be | |
526 | written, use NULL for S and (size_t) UINT_MAX for MAXSIZE. */ | |
527 | size_t | |
fcf08f5b | 528 | my_strftime (s, maxsize, format, tp extra_args LOCALE_PARAM) |
e50517d9 | 529 | CHAR_T *s; |
49fb5799 | 530 | size_t maxsize; |
e50517d9 | 531 | const CHAR_T *format; |
49fb5799 | 532 | const struct tm *tp; |
fcf08f5b DL |
533 | extra_args_spec |
534 | LOCALE_PARAM_DECL | |
49fb5799 | 535 | { |
fcf08f5b DL |
536 | #if defined _LIBC && defined USE_IN_EXTENDED_LOCALE_MODEL |
537 | struct locale_data *const current = loc->__locales[LC_TIME]; | |
538 | #endif | |
539 | ||
49fb5799 PE |
540 | int hour12 = tp->tm_hour; |
541 | #ifdef _NL_CURRENT | |
68c45bf0 PE |
542 | /* We cannot make the following values variables since we must delay |
543 | the evaluation of these values until really needed since some | |
544 | expressions might not be valid in every situation. The `struct tm' | |
545 | might be generated by a strptime() call that initialized | |
546 | only a few elements. Dereference the pointers only if the format | |
547 | requires this. Then it is ok to fail if the pointers are invalid. */ | |
e50517d9 GM |
548 | # define a_wkday \ |
549 | ((const CHAR_T *) _NL_CURRENT (LC_TIME, NLW(ABDAY_1) + tp->tm_wday)) | |
550 | # define f_wkday \ | |
551 | ((const CHAR_T *) _NL_CURRENT (LC_TIME, NLW(DAY_1) + tp->tm_wday)) | |
552 | # define a_month \ | |
553 | ((const CHAR_T *) _NL_CURRENT (LC_TIME, NLW(ABMON_1) + tp->tm_mon)) | |
554 | # define f_month \ | |
555 | ((const CHAR_T *) _NL_CURRENT (LC_TIME, NLW(MON_1) + tp->tm_mon)) | |
556 | # define ampm \ | |
fcf08f5b DL |
557 | ((const CHAR_T *) _NL_CURRENT (LC_TIME, tp->tm_hour > 11 \ |
558 | ? NLW(PM_STR) : NLW(AM_STR))) | |
e50517d9 GM |
559 | |
560 | # define aw_len STRLEN (a_wkday) | |
561 | # define am_len STRLEN (a_month) | |
562 | # define ap_len STRLEN (ampm) | |
49fb5799 | 563 | #else |
4b7c78fc | 564 | # if !HAVE_STRFTIME |
e50517d9 GM |
565 | # define f_wkday (weekday_name[tp->tm_wday]) |
566 | # define f_month (month_name[tp->tm_mon]) | |
567 | # define a_wkday f_wkday | |
568 | # define a_month f_month | |
569 | # define ampm (L_("AMPM") + 2 * (tp->tm_hour > 11)) | |
68c45bf0 | 570 | |
49fb5799 PE |
571 | size_t aw_len = 3; |
572 | size_t am_len = 3; | |
573 | size_t ap_len = 2; | |
4b7c78fc | 574 | # endif |
4b7c78fc | 575 | #endif |
49fb5799 | 576 | const char *zone; |
49fb5799 | 577 | size_t i = 0; |
e50517d9 GM |
578 | CHAR_T *p = s; |
579 | const CHAR_T *f; | |
fcf08f5b DL |
580 | #if DO_MULTIBYTE && !defined COMPILE_WIDE |
581 | const char *format_end = NULL; | |
582 | #endif | |
49fb5799 PE |
583 | |
584 | zone = NULL; | |
1b65a66c PE |
585 | #if HAVE_TM_ZONE |
586 | /* The POSIX test suite assumes that setting | |
49fb5799 PE |
587 | the environment variable TZ to a new value before calling strftime() |
588 | will influence the result (the %Z format) even if the information in | |
1b65a66c PE |
589 | TP is computed with a totally different time zone. |
590 | This is bogus: though POSIX allows bad behavior like this, | |
591 | POSIX does not require it. Do the right thing instead. */ | |
49fb5799 PE |
592 | zone = (const char *) tp->tm_zone; |
593 | #endif | |
594 | #if HAVE_TZNAME | |
68c45bf0 PE |
595 | if (ut) |
596 | { | |
597 | if (! (zone && *zone)) | |
fcf08f5b | 598 | zone = "GMT"; |
68c45bf0 PE |
599 | } |
600 | else | |
601 | { | |
fcf08f5b DL |
602 | /* POSIX.1 requires that local time zone information be used as |
603 | though strftime called tzset. */ | |
49fb5799 | 604 | # if HAVE_TZSET |
68c45bf0 | 605 | tzset (); |
49fb5799 | 606 | # endif |
68c45bf0 | 607 | } |
49fb5799 | 608 | #endif |
49fb5799 PE |
609 | |
610 | if (hour12 > 12) | |
611 | hour12 -= 12; | |
612 | else | |
68c45bf0 PE |
613 | if (hour12 == 0) |
614 | hour12 = 12; | |
49fb5799 PE |
615 | |
616 | for (f = format; *f != '\0'; ++f) | |
617 | { | |
fcf08f5b DL |
618 | int pad = 0; /* Padding for number ('-', '_', or 0). */ |
619 | int modifier; /* Field modifier ('E', 'O', or 0). */ | |
620 | int digits; /* Max digits for numeric format. */ | |
621 | int number_value; /* Numeric value to be printed. */ | |
622 | int negative_number; /* 1 if the number is negative. */ | |
e50517d9 GM |
623 | const CHAR_T *subfmt; |
624 | CHAR_T *bufp; | |
625 | CHAR_T buf[1 + (sizeof (int) < sizeof (time_t) | |
fcf08f5b DL |
626 | ? INT_STRLEN_BOUND (time_t) |
627 | : INT_STRLEN_BOUND (int))]; | |
49fb5799 PE |
628 | int width = -1; |
629 | int to_lowcase = 0; | |
630 | int to_uppcase = 0; | |
1b65a66c | 631 | int change_case = 0; |
4b7c78fc | 632 | int format_char; |
49fb5799 | 633 | |
e50517d9 GM |
634 | #if DO_MULTIBYTE && !defined COMPILE_WIDE |
635 | switch (*f) | |
fcf08f5b DL |
636 | { |
637 | case L_('%'): | |
638 | break; | |
639 | ||
640 | case L_('\b'): case L_('\t'): case L_('\n'): | |
641 | case L_('\v'): case L_('\f'): case L_('\r'): | |
642 | case L_(' '): case L_('!'): case L_('"'): case L_('#'): case L_('&'): | |
643 | case L_('\''): case L_('('): case L_(')'): case L_('*'): case L_('+'): | |
644 | case L_(','): case L_('-'): case L_('.'): case L_('/'): case L_('0'): | |
645 | case L_('1'): case L_('2'): case L_('3'): case L_('4'): case L_('5'): | |
646 | case L_('6'): case L_('7'): case L_('8'): case L_('9'): case L_(':'): | |
647 | case L_(';'): case L_('<'): case L_('='): case L_('>'): case L_('?'): | |
648 | case L_('A'): case L_('B'): case L_('C'): case L_('D'): case L_('E'): | |
649 | case L_('F'): case L_('G'): case L_('H'): case L_('I'): case L_('J'): | |
650 | case L_('K'): case L_('L'): case L_('M'): case L_('N'): case L_('O'): | |
651 | case L_('P'): case L_('Q'): case L_('R'): case L_('S'): case L_('T'): | |
652 | case L_('U'): case L_('V'): case L_('W'): case L_('X'): case L_('Y'): | |
653 | case L_('Z'): case L_('['): case L_('\\'): case L_(']'): case L_('^'): | |
654 | case L_('_'): case L_('a'): case L_('b'): case L_('c'): case L_('d'): | |
655 | case L_('e'): case L_('f'): case L_('g'): case L_('h'): case L_('i'): | |
656 | case L_('j'): case L_('k'): case L_('l'): case L_('m'): case L_('n'): | |
657 | case L_('o'): case L_('p'): case L_('q'): case L_('r'): case L_('s'): | |
658 | case L_('t'): case L_('u'): case L_('v'): case L_('w'): case L_('x'): | |
659 | case L_('y'): case L_('z'): case L_('{'): case L_('|'): case L_('}'): | |
660 | case L_('~'): | |
661 | /* The C Standard requires these 98 characters (plus '%') to | |
662 | be in the basic execution character set. None of these | |
663 | characters can start a multibyte sequence, so they need | |
664 | not be analyzed further. */ | |
665 | add (1, *p = *f); | |
666 | continue; | |
667 | ||
668 | default: | |
669 | /* Copy this multibyte sequence until we reach its end, find | |
670 | an error, or come back to the initial shift state. */ | |
671 | { | |
672 | mbstate_t mbstate = mbstate_zero; | |
673 | size_t len = 0; | |
674 | size_t fsize; | |
675 | ||
676 | if (! format_end) | |
677 | format_end = f + strlen (f) + 1; | |
678 | fsize = format_end - f; | |
679 | ||
680 | do | |
681 | { | |
682 | size_t bytes = mbrlen (f + len, fsize - len, &mbstate); | |
683 | ||
684 | if (bytes == 0) | |
685 | break; | |
686 | ||
687 | if (bytes == (size_t) -2) | |
688 | { | |
689 | len += strlen (f + len); | |
690 | break; | |
691 | } | |
692 | ||
693 | if (bytes == (size_t) -1) | |
694 | { | |
695 | len++; | |
696 | break; | |
697 | } | |
698 | ||
699 | len += bytes; | |
700 | } | |
701 | while (! mbsinit (&mbstate)); | |
702 | ||
703 | cpy (len, f); | |
704 | f += len - 1; | |
705 | continue; | |
706 | } | |
707 | } | |
49fb5799 PE |
708 | |
709 | #else /* ! DO_MULTIBYTE */ | |
710 | ||
e50517d9 | 711 | /* Either multibyte encodings are not supported, they are |
fcf08f5b DL |
712 | safe for formats, so any non-'%' byte can be copied through, |
713 | or this is the wide character version. */ | |
e50517d9 | 714 | if (*f != L_('%')) |
fcf08f5b DL |
715 | { |
716 | add (1, *p = *f); | |
717 | continue; | |
718 | } | |
49fb5799 PE |
719 | |
720 | #endif /* ! DO_MULTIBYTE */ | |
721 | ||
722 | /* Check for flags that can modify a format. */ | |
49fb5799 | 723 | while (1) |
fcf08f5b DL |
724 | { |
725 | switch (*++f) | |
726 | { | |
727 | /* This influences the number formats. */ | |
728 | case L_('_'): | |
729 | case L_('-'): | |
730 | case L_('0'): | |
731 | pad = *f; | |
732 | continue; | |
733 | ||
734 | /* This changes textual output. */ | |
735 | case L_('^'): | |
736 | to_uppcase = 1; | |
737 | continue; | |
738 | case L_('#'): | |
739 | change_case = 1; | |
740 | continue; | |
741 | ||
742 | default: | |
743 | break; | |
744 | } | |
745 | break; | |
746 | } | |
49fb5799 PE |
747 | |
748 | /* As a GNU extension we allow to specify the field width. */ | |
749 | if (ISDIGIT (*f)) | |
fcf08f5b DL |
750 | { |
751 | width = 0; | |
752 | do | |
753 | { | |
754 | if (width > INT_MAX / 10 | |
755 | || (width == INT_MAX / 10 && *f - L_('0') > INT_MAX % 10)) | |
756 | /* Avoid overflow. */ | |
757 | width = INT_MAX; | |
758 | else | |
759 | { | |
760 | width *= 10; | |
761 | width += *f - L_('0'); | |
762 | } | |
763 | ++f; | |
764 | } | |
765 | while (ISDIGIT (*f)); | |
766 | } | |
49fb5799 PE |
767 | |
768 | /* Check for modifiers. */ | |
769 | switch (*f) | |
fcf08f5b DL |
770 | { |
771 | case L_('E'): | |
772 | case L_('O'): | |
773 | modifier = *f++; | |
774 | break; | |
49fb5799 | 775 | |
fcf08f5b DL |
776 | default: |
777 | modifier = 0; | |
778 | break; | |
779 | } | |
49fb5799 PE |
780 | |
781 | /* Now do the specified format. */ | |
4b7c78fc UD |
782 | format_char = *f; |
783 | switch (format_char) | |
fcf08f5b | 784 | { |
49fb5799 | 785 | #define DO_NUMBER(d, v) \ |
fcf08f5b DL |
786 | digits = d > width ? d : width; \ |
787 | number_value = v; goto do_number | |
49fb5799 | 788 | #define DO_NUMBER_SPACEPAD(d, v) \ |
fcf08f5b DL |
789 | digits = d > width ? d : width; \ |
790 | number_value = v; goto do_number_spacepad | |
791 | ||
792 | case L_('%'): | |
793 | if (modifier != 0) | |
794 | goto bad_format; | |
795 | add (1, *p = *f); | |
796 | break; | |
797 | ||
798 | case L_('a'): | |
799 | if (modifier != 0) | |
800 | goto bad_format; | |
801 | if (change_case) | |
802 | { | |
803 | to_uppcase = 1; | |
804 | to_lowcase = 0; | |
805 | } | |
4b7c78fc | 806 | #if defined _NL_CURRENT || !HAVE_STRFTIME |
fcf08f5b DL |
807 | cpy (aw_len, a_wkday); |
808 | break; | |
4b7c78fc | 809 | #else |
fcf08f5b | 810 | goto underlying_strftime; |
4b7c78fc | 811 | #endif |
49fb5799 | 812 | |
fcf08f5b DL |
813 | case 'A': |
814 | if (modifier != 0) | |
815 | goto bad_format; | |
816 | if (change_case) | |
817 | { | |
818 | to_uppcase = 1; | |
819 | to_lowcase = 0; | |
820 | } | |
4b7c78fc | 821 | #if defined _NL_CURRENT || !HAVE_STRFTIME |
fcf08f5b DL |
822 | cpy (STRLEN (f_wkday), f_wkday); |
823 | break; | |
4b7c78fc | 824 | #else |
fcf08f5b | 825 | goto underlying_strftime; |
4b7c78fc | 826 | #endif |
49fb5799 | 827 | |
fcf08f5b DL |
828 | case L_('b'): |
829 | case L_('h'): | |
830 | if (change_case) | |
831 | { | |
832 | to_uppcase = 1; | |
833 | to_lowcase = 0; | |
834 | } | |
835 | if (modifier != 0) | |
836 | goto bad_format; | |
4b7c78fc | 837 | #if defined _NL_CURRENT || !HAVE_STRFTIME |
fcf08f5b DL |
838 | cpy (am_len, a_month); |
839 | break; | |
4b7c78fc | 840 | #else |
fcf08f5b | 841 | goto underlying_strftime; |
4b7c78fc | 842 | #endif |
49fb5799 | 843 | |
fcf08f5b DL |
844 | case L_('B'): |
845 | if (modifier != 0) | |
846 | goto bad_format; | |
847 | if (change_case) | |
848 | { | |
849 | to_uppcase = 1; | |
850 | to_lowcase = 0; | |
851 | } | |
4b7c78fc | 852 | #if defined _NL_CURRENT || !HAVE_STRFTIME |
fcf08f5b DL |
853 | cpy (STRLEN (f_month), f_month); |
854 | break; | |
4b7c78fc | 855 | #else |
fcf08f5b | 856 | goto underlying_strftime; |
4b7c78fc | 857 | #endif |
49fb5799 | 858 | |
fcf08f5b DL |
859 | case L_('c'): |
860 | if (modifier == L_('O')) | |
861 | goto bad_format; | |
49fb5799 | 862 | #ifdef _NL_CURRENT |
fcf08f5b DL |
863 | if (! (modifier == 'E' |
864 | && (*(subfmt = | |
865 | (const CHAR_T *) _NL_CURRENT (LC_TIME, | |
866 | NLW(ERA_D_T_FMT))) | |
867 | != '\0'))) | |
868 | subfmt = (const CHAR_T *) _NL_CURRENT (LC_TIME, NLW(D_T_FMT)); | |
49fb5799 | 869 | #else |
4b7c78fc | 870 | # if HAVE_STRFTIME |
fcf08f5b | 871 | goto underlying_strftime; |
4b7c78fc | 872 | # else |
fcf08f5b | 873 | subfmt = L_("%a %b %e %H:%M:%S %Y"); |
4b7c78fc | 874 | # endif |
49fb5799 PE |
875 | #endif |
876 | ||
fcf08f5b DL |
877 | subformat: |
878 | { | |
879 | CHAR_T *old_start = p; | |
880 | size_t len = my_strftime (NULL, (size_t) -1, subfmt, | |
881 | tp extra_args LOCALE_ARG); | |
882 | add (len, my_strftime (p, maxsize - i, subfmt, | |
883 | tp extra_args LOCALE_ARG)); | |
884 | ||
885 | if (to_uppcase) | |
886 | while (old_start < p) | |
887 | { | |
888 | *old_start = TOUPPER ((UCHAR_T) *old_start, loc); | |
889 | ++old_start; | |
890 | } | |
891 | } | |
892 | break; | |
49fb5799 | 893 | |
4b7c78fc | 894 | #if HAVE_STRFTIME && ! (defined _NL_CURRENT && HAVE_STRUCT_ERA_ENTRY) |
fcf08f5b DL |
895 | underlying_strftime: |
896 | { | |
897 | /* The relevant information is available only via the | |
898 | underlying strftime implementation, so use that. */ | |
899 | char ufmt[4]; | |
900 | char *u = ufmt; | |
901 | char ubuf[1024]; /* enough for any single format in practice */ | |
902 | size_t len; | |
903 | /* Make sure we're calling the actual underlying strftime. | |
904 | In some cases, config.h contains something like | |
905 | "#define strftime rpl_strftime". */ | |
e50517d9 GM |
906 | # ifdef strftime |
907 | # undef strftime | |
fcf08f5b | 908 | size_t strftime (); |
e50517d9 GM |
909 | # endif |
910 | ||
6e396aa6 JR |
911 | #ifdef STRFTIME_NO_POSIX2 |
912 | /* Some system libraries do not support the POSIX.2 extensions. | |
913 | In those cases, convert %h to %b, and strip modifiers. */ | |
914 | modifier = 0; | |
915 | if (format_char == 'h') | |
916 | format_char = 'b'; | |
917 | #endif | |
e50517d9 GM |
918 | *u++ = '%'; |
919 | if (modifier != 0) | |
920 | *u++ = modifier; | |
921 | *u++ = format_char; | |
922 | *u = '\0'; | |
923 | len = strftime (ubuf, sizeof ubuf, ufmt, tp); | |
924 | if (len == 0 && ubuf[0] != '\0') | |
925 | return 0; | |
926 | cpy (len, ubuf); | |
927 | } | |
928 | break; | |
4b7c78fc UD |
929 | #endif |
930 | ||
fcf08f5b | 931 | case L_('C'): |
e50517d9 GM |
932 | if (modifier == L_('O')) |
933 | goto bad_format; | |
934 | if (modifier == L_('E')) | |
935 | { | |
4b7c78fc | 936 | #if HAVE_STRUCT_ERA_ENTRY |
fcf08f5b DL |
937 | struct era_entry *era = _nl_get_era_entry (tp HELPER_LOCALE_ARG); |
938 | if (era) | |
939 | { | |
e50517d9 | 940 | # ifdef COMPILE_WIDE |
fcf08f5b DL |
941 | size_t len = __wcslen (era->era_wname); |
942 | cpy (len, era->era_wname); | |
e50517d9 | 943 | # else |
fcf08f5b DL |
944 | size_t len = strlen (era->era_name); |
945 | cpy (len, era->era_name); | |
e50517d9 | 946 | # endif |
fcf08f5b DL |
947 | break; |
948 | } | |
4b7c78fc UD |
949 | #else |
950 | # if HAVE_STRFTIME | |
fcf08f5b | 951 | goto underlying_strftime; |
4b7c78fc | 952 | # endif |
49fb5799 | 953 | #endif |
fcf08f5b | 954 | } |
4b7c78fc | 955 | |
fcf08f5b DL |
956 | { |
957 | int year = tp->tm_year + TM_YEAR_BASE; | |
958 | DO_NUMBER (1, year / 100 - (year % 100 < 0)); | |
959 | } | |
49fb5799 | 960 | |
fcf08f5b DL |
961 | case L_('x'): |
962 | if (modifier == L_('O')) | |
963 | goto bad_format; | |
49fb5799 | 964 | #ifdef _NL_CURRENT |
fcf08f5b DL |
965 | if (! (modifier == L_('E') |
966 | && (*(subfmt = | |
967 | (const CHAR_T *)_NL_CURRENT (LC_TIME, NLW(ERA_D_FMT))) | |
968 | != L_('\0')))) | |
969 | subfmt = (const CHAR_T *) _NL_CURRENT (LC_TIME, NLW(D_FMT)); | |
970 | goto subformat; | |
4b7c78fc UD |
971 | #else |
972 | # if HAVE_STRFTIME | |
fcf08f5b | 973 | goto underlying_strftime; |
4b7c78fc | 974 | # else |
fcf08f5b | 975 | /* Fall through. */ |
4b7c78fc UD |
976 | # endif |
977 | #endif | |
fcf08f5b DL |
978 | case L_('D'): |
979 | if (modifier != 0) | |
980 | goto bad_format; | |
981 | subfmt = L_("%m/%d/%y"); | |
982 | goto subformat; | |
49fb5799 | 983 | |
fcf08f5b DL |
984 | case L_('d'): |
985 | if (modifier == L_('E')) | |
986 | goto bad_format; | |
49fb5799 | 987 | |
fcf08f5b | 988 | DO_NUMBER (2, tp->tm_mday); |
49fb5799 | 989 | |
fcf08f5b DL |
990 | case L_('e'): |
991 | if (modifier == L_('E')) | |
992 | goto bad_format; | |
49fb5799 | 993 | |
fcf08f5b | 994 | DO_NUMBER_SPACEPAD (2, tp->tm_mday); |
49fb5799 | 995 | |
fcf08f5b DL |
996 | /* All numeric formats set DIGITS and NUMBER_VALUE and then |
997 | jump to one of these two labels. */ | |
49fb5799 | 998 | |
fcf08f5b DL |
999 | do_number_spacepad: |
1000 | /* Force `_' flag unless overridden by `0' or `-' flag. */ | |
1001 | if (pad != L_('0') && pad != L_('-')) | |
1002 | pad = L_('_'); | |
49fb5799 | 1003 | |
fcf08f5b DL |
1004 | do_number: |
1005 | /* Format the number according to the MODIFIER flag. */ | |
49fb5799 | 1006 | |
fcf08f5b DL |
1007 | if (modifier == L_('O') && 0 <= number_value) |
1008 | { | |
4b7c78fc | 1009 | #ifdef _NL_CURRENT |
fcf08f5b DL |
1010 | /* Get the locale specific alternate representation of |
1011 | the number NUMBER_VALUE. If none exist NULL is returned. */ | |
1012 | const CHAR_T *cp = nl_get_alt_digit (number_value | |
1013 | HELPER_LOCALE_ARG); | |
1014 | ||
1015 | if (cp != NULL) | |
1016 | { | |
1017 | size_t digitlen = STRLEN (cp); | |
1018 | if (digitlen != 0) | |
1019 | { | |
1020 | cpy (digitlen, cp); | |
1021 | break; | |
1022 | } | |
1023 | } | |
4b7c78fc UD |
1024 | #else |
1025 | # if HAVE_STRFTIME | |
fcf08f5b | 1026 | goto underlying_strftime; |
4b7c78fc | 1027 | # endif |
49fb5799 | 1028 | #endif |
fcf08f5b DL |
1029 | } |
1030 | { | |
1031 | unsigned int u = number_value; | |
1032 | ||
1033 | bufp = buf + sizeof (buf) / sizeof (buf[0]); | |
1034 | negative_number = number_value < 0; | |
49fb5799 | 1035 | |
fcf08f5b DL |
1036 | if (negative_number) |
1037 | u = -u; | |
49fb5799 | 1038 | |
fcf08f5b DL |
1039 | do |
1040 | *--bufp = u % 10 + L_('0'); | |
1041 | while ((u /= 10) != 0); | |
1042 | } | |
49fb5799 | 1043 | |
fcf08f5b DL |
1044 | do_number_sign_and_padding: |
1045 | if (negative_number) | |
1046 | *--bufp = L_('-'); | |
1047 | ||
1048 | if (pad != L_('-')) | |
1049 | { | |
1050 | int padding = digits - (buf + (sizeof (buf) / sizeof (buf[0])) | |
1051 | - bufp); | |
1052 | ||
1053 | if (padding > 0) | |
1054 | { | |
1055 | if (pad == L_('_')) | |
1056 | { | |
1057 | if ((size_t) padding >= maxsize - i) | |
1058 | return 0; | |
1059 | ||
1060 | if (p) | |
1061 | memset_space (p, padding); | |
1062 | i += padding; | |
1063 | width = width > padding ? width - padding : 0; | |
1064 | } | |
1065 | else | |
1066 | { | |
1067 | if ((size_t) digits >= maxsize - i) | |
1068 | return 0; | |
1069 | ||
1070 | if (negative_number) | |
1071 | { | |
1072 | ++bufp; | |
1073 | ||
1074 | if (p) | |
1075 | *p++ = L_('-'); | |
1076 | ++i; | |
1077 | } | |
1078 | ||
1079 | if (p) | |
1080 | memset_zero (p, padding); | |
1081 | i += padding; | |
1082 | width = 0; | |
1083 | } | |
1084 | } | |
1085 | } | |
1086 | ||
1087 | cpy (buf + sizeof (buf) / sizeof (buf[0]) - bufp, bufp); | |
1088 | break; | |
1089 | ||
1090 | case L_('F'): | |
1091 | if (modifier != 0) | |
1092 | goto bad_format; | |
1093 | subfmt = L_("%Y-%m-%d"); | |
1094 | goto subformat; | |
1095 | ||
1096 | case L_('H'): | |
1097 | if (modifier == L_('E')) | |
1098 | goto bad_format; | |
1099 | ||
1100 | DO_NUMBER (2, tp->tm_hour); | |
1101 | ||
1102 | case L_('I'): | |
1103 | if (modifier == L_('E')) | |
1104 | goto bad_format; | |
1105 | ||
1106 | DO_NUMBER (2, hour12); | |
1107 | ||
1108 | case L_('k'): /* GNU extension. */ | |
1109 | if (modifier == L_('E')) | |
1110 | goto bad_format; | |
1111 | ||
1112 | DO_NUMBER_SPACEPAD (2, tp->tm_hour); | |
1113 | ||
1114 | case L_('l'): /* GNU extension. */ | |
1115 | if (modifier == L_('E')) | |
1116 | goto bad_format; | |
1117 | ||
1118 | DO_NUMBER_SPACEPAD (2, hour12); | |
1119 | ||
1120 | case L_('j'): | |
1121 | if (modifier == L_('E')) | |
1122 | goto bad_format; | |
1123 | ||
1124 | DO_NUMBER (3, 1 + tp->tm_yday); | |
1125 | ||
1126 | case L_('M'): | |
1127 | if (modifier == L_('E')) | |
1128 | goto bad_format; | |
1129 | ||
1130 | DO_NUMBER (2, tp->tm_min); | |
1131 | ||
1132 | case L_('m'): | |
1133 | if (modifier == L_('E')) | |
1134 | goto bad_format; | |
1135 | ||
1136 | DO_NUMBER (2, tp->tm_mon + 1); | |
1137 | ||
1138 | #ifndef _LIBC | |
1139 | case L_('N'): /* GNU extension. */ | |
1140 | if (modifier == L_('E')) | |
1141 | goto bad_format; | |
1142 | ||
1143 | number_value = ns; | |
1144 | if (width != -1) | |
1145 | { | |
1146 | /* Take an explicit width less than 9 as a precision. */ | |
1147 | int j; | |
1148 | for (j = width; j < 9; j++) | |
1149 | number_value /= 10; | |
1150 | } | |
1151 | ||
1152 | DO_NUMBER (9, number_value); | |
1153 | #endif | |
49fb5799 | 1154 | |
fcf08f5b DL |
1155 | case L_('n'): |
1156 | add (1, *p = L_('\n')); | |
1157 | break; | |
49fb5799 | 1158 | |
fcf08f5b DL |
1159 | case L_('P'): |
1160 | to_lowcase = 1; | |
4b7c78fc | 1161 | #if !defined _NL_CURRENT && HAVE_STRFTIME |
fcf08f5b | 1162 | format_char = L_('p'); |
4b7c78fc | 1163 | #endif |
fcf08f5b DL |
1164 | /* FALLTHROUGH */ |
1165 | ||
1166 | case L_('p'): | |
1167 | if (change_case) | |
1168 | { | |
1169 | to_uppcase = 0; | |
1170 | to_lowcase = 1; | |
1171 | } | |
4b7c78fc | 1172 | #if defined _NL_CURRENT || !HAVE_STRFTIME |
fcf08f5b DL |
1173 | cpy (ap_len, ampm); |
1174 | break; | |
4b7c78fc | 1175 | #else |
fcf08f5b | 1176 | goto underlying_strftime; |
4b7c78fc | 1177 | #endif |
49fb5799 | 1178 | |
fcf08f5b DL |
1179 | case L_('R'): |
1180 | subfmt = L_("%H:%M"); | |
1181 | goto subformat; | |
49fb5799 | 1182 | |
fcf08f5b | 1183 | case L_('r'): |
49fb5799 | 1184 | #ifdef _NL_CURRENT |
fcf08f5b DL |
1185 | if (*(subfmt = (const CHAR_T *) _NL_CURRENT (LC_TIME, |
1186 | NLW(T_FMT_AMPM))) | |
1187 | == L_('\0')) | |
49fb5799 | 1188 | #endif |
fcf08f5b DL |
1189 | subfmt = L_("%I:%M:%S %p"); |
1190 | goto subformat; | |
49fb5799 | 1191 | |
fcf08f5b DL |
1192 | case L_('S'): |
1193 | if (modifier == L_('E')) | |
1194 | goto bad_format; | |
49fb5799 | 1195 | |
fcf08f5b | 1196 | DO_NUMBER (2, tp->tm_sec); |
49fb5799 | 1197 | |
fcf08f5b DL |
1198 | case L_('s'): /* GNU extension. */ |
1199 | { | |
1200 | struct tm ltm; | |
1201 | time_t t; | |
49fb5799 | 1202 | |
fcf08f5b DL |
1203 | ltm = *tp; |
1204 | t = mktime (<m); | |
49fb5799 | 1205 | |
fcf08f5b DL |
1206 | /* Generate string value for T using time_t arithmetic; |
1207 | this works even if sizeof (long) < sizeof (time_t). */ | |
49fb5799 | 1208 | |
fcf08f5b DL |
1209 | bufp = buf + sizeof (buf) / sizeof (buf[0]); |
1210 | negative_number = t < 0; | |
49fb5799 | 1211 | |
fcf08f5b DL |
1212 | do |
1213 | { | |
1214 | int d = t % 10; | |
1215 | t /= 10; | |
49fb5799 | 1216 | |
fcf08f5b DL |
1217 | if (negative_number) |
1218 | { | |
1219 | d = -d; | |
49fb5799 | 1220 | |
fcf08f5b DL |
1221 | /* Adjust if division truncates to minus infinity. */ |
1222 | if (0 < -1 % 10 && d < 0) | |
1223 | { | |
1224 | t++; | |
1225 | d += 10; | |
1226 | } | |
1227 | } | |
49fb5799 | 1228 | |
fcf08f5b DL |
1229 | *--bufp = d + L_('0'); |
1230 | } | |
1231 | while (t != 0); | |
49fb5799 | 1232 | |
fcf08f5b DL |
1233 | digits = 1; |
1234 | goto do_number_sign_and_padding; | |
1235 | } | |
49fb5799 | 1236 | |
fcf08f5b DL |
1237 | case L_('X'): |
1238 | if (modifier == L_('O')) | |
1239 | goto bad_format; | |
49fb5799 | 1240 | #ifdef _NL_CURRENT |
fcf08f5b DL |
1241 | if (! (modifier == L_('E') |
1242 | && (*(subfmt = | |
1243 | (const CHAR_T *) _NL_CURRENT (LC_TIME, NLW(ERA_T_FMT))) | |
1244 | != L_('\0')))) | |
1245 | subfmt = (const CHAR_T *) _NL_CURRENT (LC_TIME, NLW(T_FMT)); | |
1246 | goto subformat; | |
4b7c78fc UD |
1247 | #else |
1248 | # if HAVE_STRFTIME | |
fcf08f5b | 1249 | goto underlying_strftime; |
4b7c78fc | 1250 | # else |
fcf08f5b | 1251 | /* Fall through. */ |
4b7c78fc UD |
1252 | # endif |
1253 | #endif | |
fcf08f5b DL |
1254 | case L_('T'): |
1255 | subfmt = L_("%H:%M:%S"); | |
1256 | goto subformat; | |
1257 | ||
1258 | case L_('t'): | |
1259 | add (1, *p = L_('\t')); | |
1260 | break; | |
1261 | ||
1262 | case L_('u'): | |
1263 | DO_NUMBER (1, (tp->tm_wday - 1 + 7) % 7 + 1); | |
1264 | ||
1265 | case L_('U'): | |
1266 | if (modifier == L_('E')) | |
1267 | goto bad_format; | |
1268 | ||
1269 | DO_NUMBER (2, (tp->tm_yday - tp->tm_wday + 7) / 7); | |
1270 | ||
1271 | case L_('V'): | |
1272 | case L_('g'): | |
1273 | case L_('G'): | |
1274 | if (modifier == L_('E')) | |
1275 | goto bad_format; | |
1276 | { | |
1277 | int year = tp->tm_year + TM_YEAR_BASE; | |
1278 | int days = iso_week_days (tp->tm_yday, tp->tm_wday); | |
1279 | ||
1280 | if (days < 0) | |
1281 | { | |
1282 | /* This ISO week belongs to the previous year. */ | |
1283 | year--; | |
1284 | days = iso_week_days (tp->tm_yday + (365 + __isleap (year)), | |
1285 | tp->tm_wday); | |
1286 | } | |
1287 | else | |
1288 | { | |
1289 | int d = iso_week_days (tp->tm_yday - (365 + __isleap (year)), | |
1290 | tp->tm_wday); | |
1291 | if (0 <= d) | |
1292 | { | |
1293 | /* This ISO week belongs to the next year. */ | |
1294 | year++; | |
1295 | days = d; | |
1296 | } | |
1297 | } | |
1298 | ||
1299 | switch (*f) | |
1300 | { | |
1301 | case L_('g'): | |
1302 | DO_NUMBER (2, (year % 100 + 100) % 100); | |
1303 | ||
1304 | case L_('G'): | |
1305 | DO_NUMBER (1, year); | |
1306 | ||
1307 | default: | |
1308 | DO_NUMBER (2, days / 7 + 1); | |
1309 | } | |
1310 | } | |
1311 | ||
1312 | case L_('W'): | |
1313 | if (modifier == L_('E')) | |
1314 | goto bad_format; | |
1315 | ||
1316 | DO_NUMBER (2, (tp->tm_yday - (tp->tm_wday - 1 + 7) % 7 + 7) / 7); | |
1317 | ||
1318 | case L_('w'): | |
1319 | if (modifier == L_('E')) | |
1320 | goto bad_format; | |
1321 | ||
1322 | DO_NUMBER (1, tp->tm_wday); | |
1323 | ||
1324 | case L_('Y'): | |
1325 | if (modifier == 'E') | |
1326 | { | |
4b7c78fc | 1327 | #if HAVE_STRUCT_ERA_ENTRY |
fcf08f5b DL |
1328 | struct era_entry *era = _nl_get_era_entry (tp HELPER_LOCALE_ARG); |
1329 | if (era) | |
1330 | { | |
e50517d9 | 1331 | # ifdef COMPILE_WIDE |
fcf08f5b | 1332 | subfmt = era->era_wformat; |
e50517d9 | 1333 | # else |
fcf08f5b | 1334 | subfmt = era->era_format; |
e50517d9 | 1335 | # endif |
fcf08f5b DL |
1336 | goto subformat; |
1337 | } | |
4b7c78fc UD |
1338 | #else |
1339 | # if HAVE_STRFTIME | |
fcf08f5b | 1340 | goto underlying_strftime; |
4b7c78fc | 1341 | # endif |
49fb5799 | 1342 | #endif |
fcf08f5b DL |
1343 | } |
1344 | if (modifier == L_('O')) | |
1345 | goto bad_format; | |
1346 | else | |
1347 | DO_NUMBER (1, tp->tm_year + TM_YEAR_BASE); | |
1348 | ||
1349 | case L_('y'): | |
1350 | if (modifier == L_('E')) | |
1351 | { | |
4b7c78fc | 1352 | #if HAVE_STRUCT_ERA_ENTRY |
fcf08f5b DL |
1353 | struct era_entry *era = _nl_get_era_entry (tp HELPER_LOCALE_ARG); |
1354 | if (era) | |
1355 | { | |
1356 | int delta = tp->tm_year - era->start_date[0]; | |
1357 | DO_NUMBER (1, (era->offset | |
1358 | + delta * era->absolute_direction)); | |
1359 | } | |
4b7c78fc UD |
1360 | #else |
1361 | # if HAVE_STRFTIME | |
fcf08f5b | 1362 | goto underlying_strftime; |
4b7c78fc | 1363 | # endif |
49fb5799 | 1364 | #endif |
fcf08f5b DL |
1365 | } |
1366 | DO_NUMBER (2, (tp->tm_year % 100 + 100) % 100); | |
49fb5799 | 1367 | |
fcf08f5b DL |
1368 | case L_('Z'): |
1369 | if (change_case) | |
1370 | { | |
1371 | to_uppcase = 0; | |
1372 | to_lowcase = 1; | |
1373 | } | |
68c45bf0 PE |
1374 | |
1375 | #if HAVE_TZNAME | |
fcf08f5b DL |
1376 | /* The tzset() call might have changed the value. */ |
1377 | if (!(zone && *zone) && tp->tm_isdst >= 0) | |
1378 | zone = tzname[tp->tm_isdst]; | |
68c45bf0 | 1379 | #endif |
fcf08f5b DL |
1380 | if (! zone) |
1381 | zone = ""; | |
e50517d9 GM |
1382 | |
1383 | #ifdef COMPILE_WIDE | |
fcf08f5b DL |
1384 | { |
1385 | /* The zone string is always given in multibyte form. We have | |
1386 | to transform it first. */ | |
1387 | wchar_t *wczone; | |
1388 | size_t len; | |
1389 | widen (zone, wczone, len); | |
1390 | cpy (len, wczone); | |
1391 | } | |
e50517d9 | 1392 | #else |
fcf08f5b | 1393 | cpy (strlen (zone), zone); |
e50517d9 | 1394 | #endif |
fcf08f5b | 1395 | break; |
49fb5799 | 1396 | |
fcf08f5b DL |
1397 | case L_('z'): |
1398 | if (tp->tm_isdst < 0) | |
1399 | break; | |
49fb5799 | 1400 | |
fcf08f5b DL |
1401 | { |
1402 | int diff; | |
49fb5799 | 1403 | #if HAVE_TM_GMTOFF |
fcf08f5b | 1404 | diff = tp->tm_gmtoff; |
49fb5799 | 1405 | #else |
fcf08f5b DL |
1406 | if (ut) |
1407 | diff = 0; | |
1408 | else | |
1409 | { | |
1410 | struct tm gtm; | |
1411 | struct tm ltm; | |
1412 | time_t lt; | |
1413 | ||
1414 | ltm = *tp; | |
1415 | lt = mktime (<m); | |
1416 | ||
1417 | if (lt == (time_t) -1) | |
1418 | { | |
1419 | /* mktime returns -1 for errors, but -1 is also a | |
1420 | valid time_t value. Check whether an error really | |
1421 | occurred. */ | |
1422 | struct tm tm; | |
1423 | ||
1424 | if (! my_strftime_localtime_r (<, &tm) | |
1425 | || ((ltm.tm_sec ^ tm.tm_sec) | |
1426 | | (ltm.tm_min ^ tm.tm_min) | |
1427 | | (ltm.tm_hour ^ tm.tm_hour) | |
1428 | | (ltm.tm_mday ^ tm.tm_mday) | |
1429 | | (ltm.tm_mon ^ tm.tm_mon) | |
1430 | | (ltm.tm_year ^ tm.tm_year))) | |
1431 | break; | |
1432 | } | |
1433 | ||
1434 | if (! my_strftime_gmtime_r (<, >m)) | |
1435 | break; | |
1436 | ||
1437 | diff = tm_diff (<m, >m); | |
1438 | } | |
49fb5799 PE |
1439 | #endif |
1440 | ||
fcf08f5b DL |
1441 | if (diff < 0) |
1442 | { | |
1443 | add (1, *p = L_('-')); | |
1444 | diff = -diff; | |
1445 | } | |
1446 | else | |
1447 | add (1, *p = L_('+')); | |
1448 | ||
1449 | diff /= 60; | |
1450 | DO_NUMBER (4, (diff / 60) * 100 + diff % 60); | |
1451 | } | |
1452 | ||
1453 | case L_('\0'): /* GNU extension: % at end of format. */ | |
1454 | --f; | |
1455 | /* Fall through. */ | |
1456 | default: | |
1457 | /* Unknown format; output the format, including the '%', | |
1458 | since this is most likely the right thing to do if a | |
1459 | multibyte string has been misparsed. */ | |
1460 | bad_format: | |
1461 | { | |
1462 | int flen; | |
1463 | for (flen = 1; f[1 - flen] != L_('%'); flen++) | |
1464 | continue; | |
1465 | cpy (flen, &f[1 - flen]); | |
1466 | } | |
1467 | break; | |
1468 | } | |
49fb5799 PE |
1469 | } |
1470 | ||
68c45bf0 | 1471 | if (p && maxsize != 0) |
e50517d9 | 1472 | *p = L_('\0'); |
49fb5799 PE |
1473 | return i; |
1474 | } | |
fcf08f5b DL |
1475 | #ifdef _LIBC |
1476 | libc_hidden_def (my_strftime) | |
1477 | #endif | |
e50517d9 GM |
1478 | |
1479 | ||
1480 | #ifdef emacs | |
fcf08f5b | 1481 | #undef ut |
e50517d9 | 1482 | /* For Emacs we have a separate interface which corresponds to the normal |
fcf08f5b | 1483 | strftime function plus the ut argument, but without the ns argument. */ |
e50517d9 | 1484 | size_t |
fcf08f5b | 1485 | emacs_strftimeu (s, maxsize, format, tp, ut) |
e50517d9 GM |
1486 | char *s; |
1487 | size_t maxsize; | |
1488 | const char *format; | |
1489 | const struct tm *tp; | |
fcf08f5b | 1490 | int ut; |
e50517d9 | 1491 | { |
fcf08f5b | 1492 | return my_strftime (s, maxsize, format, tp, ut, 0); |
e50517d9 GM |
1493 | } |
1494 | #endif | |
ab5796a9 MB |
1495 | |
1496 | /* arch-tag: 662bc9c4-f8e2-41b6-bf96-b8346d0ce0d8 | |
1497 | (do not change this comment) */ |