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 PE |
134 | #ifndef PTR |
135 | # ifdef __STDC__ | |
136 | # define PTR void * | |
137 | # else | |
138 | # define PTR char * | |
139 | # endif | |
140 | #endif | |
141 | ||
142 | #ifndef CHAR_BIT | |
143 | # define CHAR_BIT 8 | |
144 | #endif | |
145 | ||
146 | #ifndef NULL | |
147 | # define NULL 0 | |
148 | #endif | |
149 | ||
150 | #define TYPE_SIGNED(t) ((t) -1 < 0) | |
151 | ||
152 | /* Bound on length of the string representing an integer value of type t. | |
153 | Subtract one for the sign bit if t is signed; | |
154 | 302 / 1000 is log10 (2) rounded up; | |
155 | add one for integer division truncation; | |
156 | add one more for a minus sign if t is signed. */ | |
157 | #define INT_STRLEN_BOUND(t) \ | |
68c45bf0 | 158 | ((sizeof (t) * CHAR_BIT - TYPE_SIGNED (t)) * 302 / 1000 + 1 + TYPE_SIGNED (t)) |
49fb5799 PE |
159 | |
160 | #define TM_YEAR_BASE 1900 | |
161 | ||
162 | #ifndef __isleap | |
163 | /* Nonzero if YEAR is a leap year (every 4 years, | |
164 | except every 100th isn't, and every 400th is). */ | |
fcf08f5b | 165 | # define __isleap(year) \ |
49fb5799 PE |
166 | ((year) % 4 == 0 && ((year) % 100 != 0 || (year) % 400 == 0)) |
167 | #endif | |
168 | ||
169 | ||
170 | #ifdef _LIBC | |
68c45bf0 PE |
171 | # define my_strftime_gmtime_r __gmtime_r |
172 | # define my_strftime_localtime_r __localtime_r | |
49fb5799 PE |
173 | # define tzname __tzname |
174 | # define tzset __tzset | |
175 | #else | |
68c45bf0 PE |
176 | |
177 | /* If we're a strftime substitute in a GNU program, then prefer gmtime | |
178 | to gmtime_r, since many gmtime_r implementations are buggy. | |
179 | Similarly for localtime_r. */ | |
180 | ||
181 | # if ! HAVE_TM_GMTOFF | |
f57e2426 | 182 | static struct tm *my_strftime_gmtime_r (const time_t *, struct tm *); |
49fb5799 | 183 | static struct tm * |
68c45bf0 | 184 | my_strftime_gmtime_r (t, tp) |
49fb5799 PE |
185 | const time_t *t; |
186 | struct tm *tp; | |
187 | { | |
188 | struct tm *l = gmtime (t); | |
189 | if (! l) | |
190 | return 0; | |
191 | *tp = *l; | |
192 | return tp; | |
193 | } | |
49fb5799 | 194 | |
f57e2426 | 195 | static struct tm *my_strftime_localtime_r (const time_t *, struct tm *); |
49fb5799 | 196 | static struct tm * |
68c45bf0 | 197 | my_strftime_localtime_r (t, tp) |
49fb5799 PE |
198 | const time_t *t; |
199 | struct tm *tp; | |
200 | { | |
201 | struct tm *l = localtime (t); | |
202 | if (! l) | |
203 | return 0; | |
204 | *tp = *l; | |
205 | return tp; | |
206 | } | |
880c108d | 207 | # endif /* ! HAVE_TM_GMTOFF */ |
649e97a3 | 208 | #endif /* ! defined _LIBC */ |
49fb5799 PE |
209 | |
210 | ||
1b65a66c | 211 | #if !defined memset && !defined HAVE_MEMSET && !defined _LIBC |
49fb5799 PE |
212 | /* Some systems lack the `memset' function and we don't want to |
213 | introduce additional dependencies. */ | |
c72e6644 RS |
214 | /* The SGI compiler reportedly barfs on the trailing null |
215 | if we use a string constant as the initializer. 28 June 1997, rms. */ | |
e50517d9 GM |
216 | static const CHAR_T spaces[16] = /* " " */ |
217 | { | |
218 | L_(' '),L_(' '),L_(' '),L_(' '),L_(' '),L_(' '),L_(' '),L_(' '), | |
219 | L_(' '),L_(' '),L_(' '),L_(' '),L_(' '),L_(' '),L_(' '),L_(' ') | |
220 | }; | |
221 | static const CHAR_T zeroes[16] = /* "0000000000000000" */ | |
222 | { | |
223 | L_('0'),L_('0'),L_('0'),L_('0'),L_('0'),L_('0'),L_('0'),L_('0'), | |
224 | L_('0'),L_('0'),L_('0'),L_('0'),L_('0'),L_('0'),L_('0'),L_('0') | |
225 | }; | |
49fb5799 PE |
226 | |
227 | # define memset_space(P, Len) \ | |
fcf08f5b DL |
228 | do { \ |
229 | int _len = (Len); \ | |
230 | \ | |
231 | do \ | |
232 | { \ | |
233 | int _this = _len > 16 ? 16 : _len; \ | |
234 | (P) = MEMPCPY ((P), spaces, _this * sizeof (CHAR_T)); \ | |
235 | _len -= _this; \ | |
236 | } \ | |
237 | while (_len > 0); \ | |
49fb5799 | 238 | } while (0) |
098401cf PE |
239 | |
240 | # define memset_zero(P, Len) \ | |
fcf08f5b DL |
241 | do { \ |
242 | int _len = (Len); \ | |
243 | \ | |
244 | do \ | |
245 | { \ | |
246 | int _this = _len > 16 ? 16 : _len; \ | |
247 | (P) = MEMPCPY ((P), zeroes, _this * sizeof (CHAR_T)); \ | |
248 | _len -= _this; \ | |
249 | } \ | |
250 | while (_len > 0); \ | |
098401cf | 251 | } while (0) |
49fb5799 | 252 | #else |
e50517d9 GM |
253 | # ifdef COMPILE_WIDE |
254 | # define memset_space(P, Len) (wmemset ((P), L' ', (Len)), (P) += (Len)) | |
255 | # define memset_zero(P, Len) (wmemset ((P), L'0', (Len)), (P) += (Len)) | |
256 | # else | |
257 | # define memset_space(P, Len) (memset ((P), ' ', (Len)), (P) += (Len)) | |
258 | # define memset_zero(P, Len) (memset ((P), '0', (Len)), (P) += (Len)) | |
259 | # endif | |
49fb5799 PE |
260 | #endif |
261 | ||
fcf08f5b DL |
262 | #define add(n, f) \ |
263 | do \ | |
264 | { \ | |
265 | int _n = (n); \ | |
266 | int _delta = width - _n; \ | |
267 | int _incr = _n + (_delta > 0 ? _delta : 0); \ | |
268 | if ((size_t) _incr >= maxsize - i) \ | |
269 | return 0; \ | |
270 | if (p) \ | |
271 | { \ | |
272 | if (_delta > 0) \ | |
273 | { \ | |
274 | if (pad == L_('0')) \ | |
275 | memset_zero (p, _delta); \ | |
276 | else \ | |
277 | memset_space (p, _delta); \ | |
278 | } \ | |
279 | f; \ | |
280 | p += _n; \ | |
281 | } \ | |
282 | i += _incr; \ | |
49fb5799 PE |
283 | } while (0) |
284 | ||
1b65a66c | 285 | #define cpy(n, s) \ |
fcf08f5b DL |
286 | add ((n), \ |
287 | if (to_lowcase) \ | |
288 | memcpy_lowcase (p, (s), _n LOCALE_ARG); \ | |
289 | else if (to_uppcase) \ | |
290 | memcpy_uppcase (p, (s), _n LOCALE_ARG); \ | |
291 | else \ | |
292 | MEMCPY ((PTR) p, (const PTR) (s), _n)) | |
e50517d9 GM |
293 | |
294 | #ifdef COMPILE_WIDE | |
fcf08f5b DL |
295 | # ifndef USE_IN_EXTENDED_LOCALE_MODEL |
296 | # undef __mbsrtowcs_l | |
297 | # define __mbsrtowcs_l(d, s, l, st, loc) __mbsrtowcs (d, s, l, st) | |
298 | # endif | |
e50517d9 | 299 | # define widen(os, ws, l) \ |
fcf08f5b DL |
300 | { \ |
301 | mbstate_t __st; \ | |
302 | const char *__s = os; \ | |
303 | memset (&__st, '\0', sizeof (__st)); \ | |
304 | l = __mbsrtowcs_l (NULL, &__s, 0, &__st, loc); \ | |
305 | ws = (wchar_t *) alloca ((l + 1) * sizeof (wchar_t)); \ | |
306 | (void) __mbsrtowcs_l (ws, &__s, l, &__st, loc); \ | |
e50517d9 GM |
307 | } |
308 | #endif | |
49fb5799 PE |
309 | |
310 | ||
fcf08f5b DL |
311 | #if defined _LIBC && defined USE_IN_EXTENDED_LOCALE_MODEL |
312 | /* We use this code also for the extended locale handling where the | |
313 | function gets as an additional argument the locale which has to be | |
314 | used. To access the values we have to redefine the _NL_CURRENT | |
315 | macro. */ | |
316 | # define strftime __strftime_l | |
317 | # define wcsftime __wcsftime_l | |
318 | # undef _NL_CURRENT | |
319 | # define _NL_CURRENT(category, item) \ | |
320 | (current->values[_NL_ITEM_INDEX (item)].string) | |
321 | # define LOCALE_PARAM , loc | |
322 | # define LOCALE_ARG , loc | |
323 | # define LOCALE_PARAM_DECL __locale_t loc; | |
324 | # define LOCALE_PARAM_PROTO , __locale_t loc | |
325 | # define HELPER_LOCALE_ARG , current | |
326 | #else | |
327 | # define LOCALE_PARAM | |
328 | # define LOCALE_PARAM_PROTO | |
329 | # define LOCALE_ARG | |
330 | # define LOCALE_PARAM_DECL | |
331 | # ifdef _LIBC | |
332 | # define HELPER_LOCALE_ARG , _NL_CURRENT_DATA (LC_TIME) | |
333 | # else | |
334 | # define HELPER_LOCALE_ARG | |
335 | # endif | |
336 | #endif | |
337 | ||
e50517d9 | 338 | #ifdef COMPILE_WIDE |
fcf08f5b DL |
339 | # ifdef USE_IN_EXTENDED_LOCALE_MODEL |
340 | # define TOUPPER(Ch, L) __towupper_l (Ch, L) | |
341 | # define TOLOWER(Ch, L) __towlower_l (Ch, L) | |
342 | # else | |
343 | # define TOUPPER(Ch, L) towupper (Ch) | |
344 | # define TOLOWER(Ch, L) towlower (Ch) | |
345 | # endif | |
49fb5799 | 346 | #else |
e50517d9 | 347 | # ifdef _LIBC |
fcf08f5b DL |
348 | # ifdef USE_IN_EXTENDED_LOCALE_MODEL |
349 | # define TOUPPER(Ch, L) __toupper_l (Ch, L) | |
350 | # define TOLOWER(Ch, L) __tolower_l (Ch, L) | |
351 | # else | |
352 | # define TOUPPER(Ch, L) toupper (Ch) | |
353 | # define TOLOWER(Ch, L) tolower (Ch) | |
354 | # endif | |
e50517d9 | 355 | # else |
fcf08f5b DL |
356 | # define TOUPPER(Ch, L) (islower (Ch) ? toupper (Ch) : (Ch)) |
357 | # define TOLOWER(Ch, L) (isupper (Ch) ? tolower (Ch) : (Ch)) | |
e50517d9 | 358 | # endif |
49fb5799 PE |
359 | #endif |
360 | /* We don't use `isdigit' here since the locale dependent | |
361 | interpretation is not what we want here. We only need to accept | |
362 | the arabic digits in the ASCII range. One day there is perhaps a | |
363 | more reliable way to accept other sets of digits. */ | |
e50517d9 | 364 | #define ISDIGIT(Ch) ((unsigned int) (Ch) - L_('0') <= 9) |
49fb5799 | 365 | |
f57e2426 J |
366 | static CHAR_T *memcpy_lowcase (CHAR_T *dest, const CHAR_T *src, |
367 | size_t len LOCALE_PARAM_PROTO); | |
49fb5799 | 368 | |
e50517d9 | 369 | static CHAR_T * |
e6cb2cbb JB |
370 | memcpy_lowcase (dest, src, len LOCALE_PARAM) |
371 | CHAR_T *dest; | |
372 | const CHAR_T *src; | |
373 | size_t len; | |
374 | LOCALE_PARAM_DECL | |
49fb5799 PE |
375 | { |
376 | while (len-- > 0) | |
fcf08f5b | 377 | dest[len] = TOLOWER ((UCHAR_T) src[len], loc); |
49fb5799 PE |
378 | return dest; |
379 | } | |
380 | ||
f57e2426 J |
381 | static CHAR_T *memcpy_uppcase (CHAR_T *dest, const CHAR_T *src, |
382 | size_t len LOCALE_PARAM_PROTO); | |
49fb5799 | 383 | |
e50517d9 | 384 | static CHAR_T * |
e6cb2cbb JB |
385 | memcpy_uppcase (dest, src, len LOCALE_PARAM) |
386 | CHAR_T *dest; | |
387 | const CHAR_T *src; | |
388 | size_t len; | |
389 | LOCALE_PARAM_DECL | |
49fb5799 PE |
390 | { |
391 | while (len-- > 0) | |
fcf08f5b | 392 | dest[len] = TOUPPER ((UCHAR_T) src[len], loc); |
49fb5799 PE |
393 | return dest; |
394 | } | |
395 | ||
1b65a66c | 396 | |
49fb5799 PE |
397 | #if ! HAVE_TM_GMTOFF |
398 | /* Yield the difference between *A and *B, | |
399 | measured in seconds, ignoring leap seconds. */ | |
1b65a66c | 400 | # define tm_diff ftime_tm_diff |
f57e2426 | 401 | static int tm_diff (const struct tm *, const struct tm *); |
49fb5799 PE |
402 | static int |
403 | tm_diff (a, b) | |
404 | const struct tm *a; | |
405 | const struct tm *b; | |
406 | { | |
407 | /* Compute intervening leap days correctly even if year is negative. | |
408 | Take care to avoid int overflow in leap day calculations, | |
409 | but it's OK to assume that A and B are close to each other. */ | |
410 | int a4 = (a->tm_year >> 2) + (TM_YEAR_BASE >> 2) - ! (a->tm_year & 3); | |
411 | int b4 = (b->tm_year >> 2) + (TM_YEAR_BASE >> 2) - ! (b->tm_year & 3); | |
412 | int a100 = a4 / 25 - (a4 % 25 < 0); | |
413 | int b100 = b4 / 25 - (b4 % 25 < 0); | |
414 | int a400 = a100 >> 2; | |
415 | int b400 = b100 >> 2; | |
416 | int intervening_leap_days = (a4 - b4) - (a100 - b100) + (a400 - b400); | |
417 | int years = a->tm_year - b->tm_year; | |
418 | int days = (365 * years + intervening_leap_days | |
fcf08f5b | 419 | + (a->tm_yday - b->tm_yday)); |
49fb5799 | 420 | return (60 * (60 * (24 * days + (a->tm_hour - b->tm_hour)) |
fcf08f5b DL |
421 | + (a->tm_min - b->tm_min)) |
422 | + (a->tm_sec - b->tm_sec)); | |
49fb5799 PE |
423 | } |
424 | #endif /* ! HAVE_TM_GMTOFF */ | |
425 | ||
426 | ||
427 | ||
428 | /* The number of days from the first day of the first ISO week of this | |
429 | year to the year day YDAY with week day WDAY. ISO weeks start on | |
430 | Monday; the first ISO week has the year's first Thursday. YDAY may | |
431 | be as small as YDAY_MINIMUM. */ | |
432 | #define ISO_WEEK_START_WDAY 1 /* Monday */ | |
433 | #define ISO_WEEK1_WDAY 4 /* Thursday */ | |
434 | #define YDAY_MINIMUM (-366) | |
f57e2426 | 435 | static int iso_week_days (int, int); |
49fb5799 | 436 | #ifdef __GNUC__ |
ffa0434b | 437 | __inline__ |
49fb5799 PE |
438 | #endif |
439 | static int | |
e6cb2cbb JB |
440 | iso_week_days (yday, wday) |
441 | int yday; | |
442 | int wday; | |
49fb5799 PE |
443 | { |
444 | /* Add enough to the first operand of % to make it nonnegative. */ | |
445 | int big_enough_multiple_of_7 = (-YDAY_MINIMUM / 7 + 2) * 7; | |
446 | return (yday | |
fcf08f5b DL |
447 | - (yday - wday + ISO_WEEK1_WDAY + big_enough_multiple_of_7) % 7 |
448 | + ISO_WEEK1_WDAY - ISO_WEEK_START_WDAY); | |
49fb5799 PE |
449 | } |
450 | ||
451 | ||
4b7c78fc | 452 | #if !(defined _NL_CURRENT || HAVE_STRFTIME) |
e50517d9 | 453 | static CHAR_T const weekday_name[][10] = |
49fb5799 | 454 | { |
e50517d9 GM |
455 | L_("Sunday"), L_("Monday"), L_("Tuesday"), L_("Wednesday"), |
456 | L_("Thursday"), L_("Friday"), L_("Saturday") | |
49fb5799 | 457 | }; |
e50517d9 | 458 | static CHAR_T const month_name[][10] = |
49fb5799 | 459 | { |
e50517d9 GM |
460 | L_("January"), L_("February"), L_("March"), L_("April"), L_("May"), |
461 | L_("June"), L_("July"), L_("August"), L_("September"), L_("October"), | |
462 | L_("November"), L_("December") | |
49fb5799 PE |
463 | }; |
464 | #endif | |
465 | ||
466 | ||
fcf08f5b DL |
467 | /* When compiling this file, GNU applications can #define my_strftime |
468 | to a symbol (typically nstrftime) to get an extended strftime with | |
469 | extra arguments UT and NS. */ | |
470 | ||
471 | #ifdef my_strftime | |
472 | # define extra_args , ut, ns | |
473 | # define extra_args_spec int ut; int ns; | |
474 | # define extra_args_spec_iso , int ut, int ns | |
4b7c78fc | 475 | #else |
e50517d9 GM |
476 | # ifdef COMPILE_WIDE |
477 | # define my_strftime wcsftime | |
fcf08f5b | 478 | # define nl_get_alt_digit _nl_get_walt_digit |
e50517d9 GM |
479 | # else |
480 | # define my_strftime strftime | |
fcf08f5b | 481 | # define nl_get_alt_digit _nl_get_alt_digit |
e50517d9 | 482 | # endif |
fcf08f5b DL |
483 | # define extra_args |
484 | # define extra_args_spec | |
485 | # define extra_args_spec_iso | |
68c45bf0 PE |
486 | /* We don't have this information in general. */ |
487 | # define ut 0 | |
fcf08f5b | 488 | # define ns 0 |
4b7c78fc UD |
489 | #endif |
490 | ||
ea456eb4 | 491 | #if !defined _LIBC && !defined(WINDOWSNT) && HAVE_TZNAME && HAVE_TZSET |
49fb5799 PE |
492 | /* Solaris 2.5 tzset sometimes modifies the storage returned by localtime. |
493 | Work around this bug by copying *tp before it might be munged. */ | |
f57e2426 J |
494 | size_t _strftime_copytm (char *, size_t, const char *, |
495 | const struct tm * extra_args_spec_iso); | |
49fb5799 | 496 | size_t |
fcf08f5b | 497 | my_strftime (s, maxsize, format, tp extra_args) |
e50517d9 | 498 | CHAR_T *s; |
49fb5799 | 499 | size_t maxsize; |
e50517d9 | 500 | const CHAR_T *format; |
49fb5799 | 501 | const struct tm *tp; |
fcf08f5b | 502 | extra_args_spec |
49fb5799 PE |
503 | { |
504 | struct tm tmcopy; | |
505 | tmcopy = *tp; | |
fcf08f5b | 506 | return _strftime_copytm (s, maxsize, format, &tmcopy extra_args); |
49fb5799 | 507 | } |
4b7c78fc | 508 | # undef my_strftime |
ea456eb4 | 509 | # define my_strftime _strftime_copytm |
49fb5799 PE |
510 | #endif |
511 | ||
512 | ||
513 | /* Write information from TP into S according to the format | |
514 | string FORMAT, writing no more that MAXSIZE characters | |
515 | (including the terminating '\0') and returning number of | |
516 | characters written. If S is NULL, nothing will be written | |
517 | anywhere, so to determine how many characters would be | |
518 | written, use NULL for S and (size_t) UINT_MAX for MAXSIZE. */ | |
519 | size_t | |
fcf08f5b | 520 | my_strftime (s, maxsize, format, tp extra_args LOCALE_PARAM) |
e50517d9 | 521 | CHAR_T *s; |
49fb5799 | 522 | size_t maxsize; |
e50517d9 | 523 | const CHAR_T *format; |
49fb5799 | 524 | const struct tm *tp; |
fcf08f5b DL |
525 | extra_args_spec |
526 | LOCALE_PARAM_DECL | |
49fb5799 | 527 | { |
fcf08f5b DL |
528 | #if defined _LIBC && defined USE_IN_EXTENDED_LOCALE_MODEL |
529 | struct locale_data *const current = loc->__locales[LC_TIME]; | |
530 | #endif | |
531 | ||
49fb5799 PE |
532 | int hour12 = tp->tm_hour; |
533 | #ifdef _NL_CURRENT | |
68c45bf0 PE |
534 | /* We cannot make the following values variables since we must delay |
535 | the evaluation of these values until really needed since some | |
536 | expressions might not be valid in every situation. The `struct tm' | |
537 | might be generated by a strptime() call that initialized | |
538 | only a few elements. Dereference the pointers only if the format | |
539 | requires this. Then it is ok to fail if the pointers are invalid. */ | |
e50517d9 GM |
540 | # define a_wkday \ |
541 | ((const CHAR_T *) _NL_CURRENT (LC_TIME, NLW(ABDAY_1) + tp->tm_wday)) | |
542 | # define f_wkday \ | |
543 | ((const CHAR_T *) _NL_CURRENT (LC_TIME, NLW(DAY_1) + tp->tm_wday)) | |
544 | # define a_month \ | |
545 | ((const CHAR_T *) _NL_CURRENT (LC_TIME, NLW(ABMON_1) + tp->tm_mon)) | |
546 | # define f_month \ | |
547 | ((const CHAR_T *) _NL_CURRENT (LC_TIME, NLW(MON_1) + tp->tm_mon)) | |
548 | # define ampm \ | |
fcf08f5b DL |
549 | ((const CHAR_T *) _NL_CURRENT (LC_TIME, tp->tm_hour > 11 \ |
550 | ? NLW(PM_STR) : NLW(AM_STR))) | |
e50517d9 GM |
551 | |
552 | # define aw_len STRLEN (a_wkday) | |
553 | # define am_len STRLEN (a_month) | |
554 | # define ap_len STRLEN (ampm) | |
49fb5799 | 555 | #else |
4b7c78fc | 556 | # if !HAVE_STRFTIME |
e50517d9 GM |
557 | # define f_wkday (weekday_name[tp->tm_wday]) |
558 | # define f_month (month_name[tp->tm_mon]) | |
559 | # define a_wkday f_wkday | |
560 | # define a_month f_month | |
561 | # define ampm (L_("AMPM") + 2 * (tp->tm_hour > 11)) | |
68c45bf0 | 562 | |
49fb5799 PE |
563 | size_t aw_len = 3; |
564 | size_t am_len = 3; | |
565 | size_t ap_len = 2; | |
4b7c78fc | 566 | # endif |
4b7c78fc | 567 | #endif |
49fb5799 | 568 | const char *zone; |
49fb5799 | 569 | size_t i = 0; |
e50517d9 GM |
570 | CHAR_T *p = s; |
571 | const CHAR_T *f; | |
fcf08f5b DL |
572 | #if DO_MULTIBYTE && !defined COMPILE_WIDE |
573 | const char *format_end = NULL; | |
574 | #endif | |
49fb5799 PE |
575 | |
576 | zone = NULL; | |
1b65a66c PE |
577 | #if HAVE_TM_ZONE |
578 | /* The POSIX test suite assumes that setting | |
49fb5799 PE |
579 | the environment variable TZ to a new value before calling strftime() |
580 | will influence the result (the %Z format) even if the information in | |
1b65a66c PE |
581 | TP is computed with a totally different time zone. |
582 | This is bogus: though POSIX allows bad behavior like this, | |
583 | POSIX does not require it. Do the right thing instead. */ | |
49fb5799 PE |
584 | zone = (const char *) tp->tm_zone; |
585 | #endif | |
586 | #if HAVE_TZNAME | |
68c45bf0 PE |
587 | if (ut) |
588 | { | |
589 | if (! (zone && *zone)) | |
fcf08f5b | 590 | zone = "GMT"; |
68c45bf0 PE |
591 | } |
592 | else | |
593 | { | |
fcf08f5b DL |
594 | /* POSIX.1 requires that local time zone information be used as |
595 | though strftime called tzset. */ | |
49fb5799 | 596 | # if HAVE_TZSET |
68c45bf0 | 597 | tzset (); |
49fb5799 | 598 | # endif |
68c45bf0 | 599 | } |
49fb5799 | 600 | #endif |
49fb5799 PE |
601 | |
602 | if (hour12 > 12) | |
603 | hour12 -= 12; | |
604 | else | |
68c45bf0 PE |
605 | if (hour12 == 0) |
606 | hour12 = 12; | |
49fb5799 PE |
607 | |
608 | for (f = format; *f != '\0'; ++f) | |
609 | { | |
fcf08f5b DL |
610 | int pad = 0; /* Padding for number ('-', '_', or 0). */ |
611 | int modifier; /* Field modifier ('E', 'O', or 0). */ | |
612 | int digits; /* Max digits for numeric format. */ | |
613 | int number_value; /* Numeric value to be printed. */ | |
614 | int negative_number; /* 1 if the number is negative. */ | |
e50517d9 GM |
615 | const CHAR_T *subfmt; |
616 | CHAR_T *bufp; | |
617 | CHAR_T buf[1 + (sizeof (int) < sizeof (time_t) | |
fcf08f5b DL |
618 | ? INT_STRLEN_BOUND (time_t) |
619 | : INT_STRLEN_BOUND (int))]; | |
49fb5799 PE |
620 | int width = -1; |
621 | int to_lowcase = 0; | |
622 | int to_uppcase = 0; | |
1b65a66c | 623 | int change_case = 0; |
4b7c78fc | 624 | int format_char; |
49fb5799 | 625 | |
e50517d9 GM |
626 | #if DO_MULTIBYTE && !defined COMPILE_WIDE |
627 | switch (*f) | |
fcf08f5b DL |
628 | { |
629 | case L_('%'): | |
630 | break; | |
631 | ||
632 | case L_('\b'): case L_('\t'): case L_('\n'): | |
633 | case L_('\v'): case L_('\f'): case L_('\r'): | |
634 | case L_(' '): case L_('!'): case L_('"'): case L_('#'): case L_('&'): | |
635 | case L_('\''): case L_('('): case L_(')'): case L_('*'): case L_('+'): | |
636 | case L_(','): case L_('-'): case L_('.'): case L_('/'): case L_('0'): | |
637 | case L_('1'): case L_('2'): case L_('3'): case L_('4'): case L_('5'): | |
638 | case L_('6'): case L_('7'): case L_('8'): case L_('9'): case L_(':'): | |
639 | case L_(';'): case L_('<'): case L_('='): case L_('>'): case L_('?'): | |
640 | case L_('A'): case L_('B'): case L_('C'): case L_('D'): case L_('E'): | |
641 | case L_('F'): case L_('G'): case L_('H'): case L_('I'): case L_('J'): | |
642 | case L_('K'): case L_('L'): case L_('M'): case L_('N'): case L_('O'): | |
643 | case L_('P'): case L_('Q'): case L_('R'): case L_('S'): case L_('T'): | |
644 | case L_('U'): case L_('V'): case L_('W'): case L_('X'): case L_('Y'): | |
645 | case L_('Z'): case L_('['): case L_('\\'): case L_(']'): case L_('^'): | |
646 | case L_('_'): case L_('a'): case L_('b'): case L_('c'): case L_('d'): | |
647 | case L_('e'): case L_('f'): case L_('g'): case L_('h'): case L_('i'): | |
648 | case L_('j'): case L_('k'): case L_('l'): case L_('m'): case L_('n'): | |
649 | case L_('o'): case L_('p'): case L_('q'): case L_('r'): case L_('s'): | |
650 | case L_('t'): case L_('u'): case L_('v'): case L_('w'): case L_('x'): | |
651 | case L_('y'): case L_('z'): case L_('{'): case L_('|'): case L_('}'): | |
652 | case L_('~'): | |
653 | /* The C Standard requires these 98 characters (plus '%') to | |
654 | be in the basic execution character set. None of these | |
655 | characters can start a multibyte sequence, so they need | |
656 | not be analyzed further. */ | |
657 | add (1, *p = *f); | |
658 | continue; | |
659 | ||
660 | default: | |
661 | /* Copy this multibyte sequence until we reach its end, find | |
662 | an error, or come back to the initial shift state. */ | |
663 | { | |
664 | mbstate_t mbstate = mbstate_zero; | |
665 | size_t len = 0; | |
666 | size_t fsize; | |
667 | ||
668 | if (! format_end) | |
669 | format_end = f + strlen (f) + 1; | |
670 | fsize = format_end - f; | |
671 | ||
672 | do | |
673 | { | |
674 | size_t bytes = mbrlen (f + len, fsize - len, &mbstate); | |
675 | ||
676 | if (bytes == 0) | |
677 | break; | |
678 | ||
679 | if (bytes == (size_t) -2) | |
680 | { | |
681 | len += strlen (f + len); | |
682 | break; | |
683 | } | |
684 | ||
685 | if (bytes == (size_t) -1) | |
686 | { | |
687 | len++; | |
688 | break; | |
689 | } | |
690 | ||
691 | len += bytes; | |
692 | } | |
693 | while (! mbsinit (&mbstate)); | |
694 | ||
695 | cpy (len, f); | |
696 | f += len - 1; | |
697 | continue; | |
698 | } | |
699 | } | |
49fb5799 PE |
700 | |
701 | #else /* ! DO_MULTIBYTE */ | |
702 | ||
e50517d9 | 703 | /* Either multibyte encodings are not supported, they are |
fcf08f5b DL |
704 | safe for formats, so any non-'%' byte can be copied through, |
705 | or this is the wide character version. */ | |
e50517d9 | 706 | if (*f != L_('%')) |
fcf08f5b DL |
707 | { |
708 | add (1, *p = *f); | |
709 | continue; | |
710 | } | |
49fb5799 PE |
711 | |
712 | #endif /* ! DO_MULTIBYTE */ | |
713 | ||
714 | /* Check for flags that can modify a format. */ | |
49fb5799 | 715 | while (1) |
fcf08f5b DL |
716 | { |
717 | switch (*++f) | |
718 | { | |
719 | /* This influences the number formats. */ | |
720 | case L_('_'): | |
721 | case L_('-'): | |
722 | case L_('0'): | |
723 | pad = *f; | |
724 | continue; | |
725 | ||
726 | /* This changes textual output. */ | |
727 | case L_('^'): | |
728 | to_uppcase = 1; | |
729 | continue; | |
730 | case L_('#'): | |
731 | change_case = 1; | |
732 | continue; | |
733 | ||
734 | default: | |
735 | break; | |
736 | } | |
737 | break; | |
738 | } | |
49fb5799 PE |
739 | |
740 | /* As a GNU extension we allow to specify the field width. */ | |
741 | if (ISDIGIT (*f)) | |
fcf08f5b DL |
742 | { |
743 | width = 0; | |
744 | do | |
745 | { | |
746 | if (width > INT_MAX / 10 | |
747 | || (width == INT_MAX / 10 && *f - L_('0') > INT_MAX % 10)) | |
748 | /* Avoid overflow. */ | |
749 | width = INT_MAX; | |
750 | else | |
751 | { | |
752 | width *= 10; | |
753 | width += *f - L_('0'); | |
754 | } | |
755 | ++f; | |
756 | } | |
757 | while (ISDIGIT (*f)); | |
758 | } | |
49fb5799 PE |
759 | |
760 | /* Check for modifiers. */ | |
761 | switch (*f) | |
fcf08f5b DL |
762 | { |
763 | case L_('E'): | |
764 | case L_('O'): | |
765 | modifier = *f++; | |
766 | break; | |
49fb5799 | 767 | |
fcf08f5b DL |
768 | default: |
769 | modifier = 0; | |
770 | break; | |
771 | } | |
49fb5799 PE |
772 | |
773 | /* Now do the specified format. */ | |
4b7c78fc UD |
774 | format_char = *f; |
775 | switch (format_char) | |
fcf08f5b | 776 | { |
49fb5799 | 777 | #define DO_NUMBER(d, v) \ |
fcf08f5b DL |
778 | digits = d > width ? d : width; \ |
779 | number_value = v; goto do_number | |
49fb5799 | 780 | #define DO_NUMBER_SPACEPAD(d, v) \ |
fcf08f5b DL |
781 | digits = d > width ? d : width; \ |
782 | number_value = v; goto do_number_spacepad | |
783 | ||
784 | case L_('%'): | |
785 | if (modifier != 0) | |
786 | goto bad_format; | |
787 | add (1, *p = *f); | |
788 | break; | |
789 | ||
790 | case L_('a'): | |
791 | if (modifier != 0) | |
792 | goto bad_format; | |
793 | if (change_case) | |
794 | { | |
795 | to_uppcase = 1; | |
796 | to_lowcase = 0; | |
797 | } | |
4b7c78fc | 798 | #if defined _NL_CURRENT || !HAVE_STRFTIME |
fcf08f5b DL |
799 | cpy (aw_len, a_wkday); |
800 | break; | |
4b7c78fc | 801 | #else |
fcf08f5b | 802 | goto underlying_strftime; |
4b7c78fc | 803 | #endif |
49fb5799 | 804 | |
fcf08f5b DL |
805 | case 'A': |
806 | if (modifier != 0) | |
807 | goto bad_format; | |
808 | if (change_case) | |
809 | { | |
810 | to_uppcase = 1; | |
811 | to_lowcase = 0; | |
812 | } | |
4b7c78fc | 813 | #if defined _NL_CURRENT || !HAVE_STRFTIME |
fcf08f5b DL |
814 | cpy (STRLEN (f_wkday), f_wkday); |
815 | break; | |
4b7c78fc | 816 | #else |
fcf08f5b | 817 | goto underlying_strftime; |
4b7c78fc | 818 | #endif |
49fb5799 | 819 | |
fcf08f5b DL |
820 | case L_('b'): |
821 | case L_('h'): | |
822 | if (change_case) | |
823 | { | |
824 | to_uppcase = 1; | |
825 | to_lowcase = 0; | |
826 | } | |
827 | if (modifier != 0) | |
828 | goto bad_format; | |
4b7c78fc | 829 | #if defined _NL_CURRENT || !HAVE_STRFTIME |
fcf08f5b DL |
830 | cpy (am_len, a_month); |
831 | break; | |
4b7c78fc | 832 | #else |
fcf08f5b | 833 | goto underlying_strftime; |
4b7c78fc | 834 | #endif |
49fb5799 | 835 | |
fcf08f5b DL |
836 | case L_('B'): |
837 | if (modifier != 0) | |
838 | goto bad_format; | |
839 | if (change_case) | |
840 | { | |
841 | to_uppcase = 1; | |
842 | to_lowcase = 0; | |
843 | } | |
4b7c78fc | 844 | #if defined _NL_CURRENT || !HAVE_STRFTIME |
fcf08f5b DL |
845 | cpy (STRLEN (f_month), f_month); |
846 | break; | |
4b7c78fc | 847 | #else |
fcf08f5b | 848 | goto underlying_strftime; |
4b7c78fc | 849 | #endif |
49fb5799 | 850 | |
fcf08f5b DL |
851 | case L_('c'): |
852 | if (modifier == L_('O')) | |
853 | goto bad_format; | |
49fb5799 | 854 | #ifdef _NL_CURRENT |
fcf08f5b DL |
855 | if (! (modifier == 'E' |
856 | && (*(subfmt = | |
857 | (const CHAR_T *) _NL_CURRENT (LC_TIME, | |
858 | NLW(ERA_D_T_FMT))) | |
859 | != '\0'))) | |
860 | subfmt = (const CHAR_T *) _NL_CURRENT (LC_TIME, NLW(D_T_FMT)); | |
49fb5799 | 861 | #else |
4b7c78fc | 862 | # if HAVE_STRFTIME |
fcf08f5b | 863 | goto underlying_strftime; |
4b7c78fc | 864 | # else |
fcf08f5b | 865 | subfmt = L_("%a %b %e %H:%M:%S %Y"); |
4b7c78fc | 866 | # endif |
49fb5799 PE |
867 | #endif |
868 | ||
fcf08f5b DL |
869 | subformat: |
870 | { | |
871 | CHAR_T *old_start = p; | |
872 | size_t len = my_strftime (NULL, (size_t) -1, subfmt, | |
873 | tp extra_args LOCALE_ARG); | |
874 | add (len, my_strftime (p, maxsize - i, subfmt, | |
875 | tp extra_args LOCALE_ARG)); | |
876 | ||
877 | if (to_uppcase) | |
878 | while (old_start < p) | |
879 | { | |
880 | *old_start = TOUPPER ((UCHAR_T) *old_start, loc); | |
881 | ++old_start; | |
882 | } | |
883 | } | |
884 | break; | |
49fb5799 | 885 | |
4b7c78fc | 886 | #if HAVE_STRFTIME && ! (defined _NL_CURRENT && HAVE_STRUCT_ERA_ENTRY) |
fcf08f5b DL |
887 | underlying_strftime: |
888 | { | |
889 | /* The relevant information is available only via the | |
890 | underlying strftime implementation, so use that. */ | |
891 | char ufmt[4]; | |
892 | char *u = ufmt; | |
893 | char ubuf[1024]; /* enough for any single format in practice */ | |
894 | size_t len; | |
895 | /* Make sure we're calling the actual underlying strftime. | |
896 | In some cases, config.h contains something like | |
897 | "#define strftime rpl_strftime". */ | |
e50517d9 GM |
898 | # ifdef strftime |
899 | # undef strftime | |
fcf08f5b | 900 | size_t strftime (); |
e50517d9 GM |
901 | # endif |
902 | ||
6e396aa6 JR |
903 | #ifdef STRFTIME_NO_POSIX2 |
904 | /* Some system libraries do not support the POSIX.2 extensions. | |
905 | In those cases, convert %h to %b, and strip modifiers. */ | |
906 | modifier = 0; | |
907 | if (format_char == 'h') | |
908 | format_char = 'b'; | |
909 | #endif | |
e50517d9 GM |
910 | *u++ = '%'; |
911 | if (modifier != 0) | |
912 | *u++ = modifier; | |
913 | *u++ = format_char; | |
914 | *u = '\0'; | |
915 | len = strftime (ubuf, sizeof ubuf, ufmt, tp); | |
916 | if (len == 0 && ubuf[0] != '\0') | |
917 | return 0; | |
918 | cpy (len, ubuf); | |
919 | } | |
920 | break; | |
4b7c78fc UD |
921 | #endif |
922 | ||
fcf08f5b | 923 | case L_('C'): |
e50517d9 GM |
924 | if (modifier == L_('O')) |
925 | goto bad_format; | |
926 | if (modifier == L_('E')) | |
927 | { | |
4b7c78fc | 928 | #if HAVE_STRUCT_ERA_ENTRY |
fcf08f5b DL |
929 | struct era_entry *era = _nl_get_era_entry (tp HELPER_LOCALE_ARG); |
930 | if (era) | |
931 | { | |
e50517d9 | 932 | # ifdef COMPILE_WIDE |
fcf08f5b DL |
933 | size_t len = __wcslen (era->era_wname); |
934 | cpy (len, era->era_wname); | |
e50517d9 | 935 | # else |
fcf08f5b DL |
936 | size_t len = strlen (era->era_name); |
937 | cpy (len, era->era_name); | |
e50517d9 | 938 | # endif |
fcf08f5b DL |
939 | break; |
940 | } | |
4b7c78fc UD |
941 | #else |
942 | # if HAVE_STRFTIME | |
fcf08f5b | 943 | goto underlying_strftime; |
4b7c78fc | 944 | # endif |
49fb5799 | 945 | #endif |
fcf08f5b | 946 | } |
4b7c78fc | 947 | |
fcf08f5b DL |
948 | { |
949 | int year = tp->tm_year + TM_YEAR_BASE; | |
950 | DO_NUMBER (1, year / 100 - (year % 100 < 0)); | |
951 | } | |
49fb5799 | 952 | |
fcf08f5b DL |
953 | case L_('x'): |
954 | if (modifier == L_('O')) | |
955 | goto bad_format; | |
49fb5799 | 956 | #ifdef _NL_CURRENT |
fcf08f5b DL |
957 | if (! (modifier == L_('E') |
958 | && (*(subfmt = | |
959 | (const CHAR_T *)_NL_CURRENT (LC_TIME, NLW(ERA_D_FMT))) | |
960 | != L_('\0')))) | |
961 | subfmt = (const CHAR_T *) _NL_CURRENT (LC_TIME, NLW(D_FMT)); | |
962 | goto subformat; | |
4b7c78fc UD |
963 | #else |
964 | # if HAVE_STRFTIME | |
fcf08f5b | 965 | goto underlying_strftime; |
4b7c78fc | 966 | # else |
fcf08f5b | 967 | /* Fall through. */ |
4b7c78fc UD |
968 | # endif |
969 | #endif | |
fcf08f5b DL |
970 | case L_('D'): |
971 | if (modifier != 0) | |
972 | goto bad_format; | |
973 | subfmt = L_("%m/%d/%y"); | |
974 | goto subformat; | |
49fb5799 | 975 | |
fcf08f5b DL |
976 | case L_('d'): |
977 | if (modifier == L_('E')) | |
978 | goto bad_format; | |
49fb5799 | 979 | |
fcf08f5b | 980 | DO_NUMBER (2, tp->tm_mday); |
49fb5799 | 981 | |
fcf08f5b DL |
982 | case L_('e'): |
983 | if (modifier == L_('E')) | |
984 | goto bad_format; | |
49fb5799 | 985 | |
fcf08f5b | 986 | DO_NUMBER_SPACEPAD (2, tp->tm_mday); |
49fb5799 | 987 | |
fcf08f5b DL |
988 | /* All numeric formats set DIGITS and NUMBER_VALUE and then |
989 | jump to one of these two labels. */ | |
49fb5799 | 990 | |
fcf08f5b DL |
991 | do_number_spacepad: |
992 | /* Force `_' flag unless overridden by `0' or `-' flag. */ | |
993 | if (pad != L_('0') && pad != L_('-')) | |
994 | pad = L_('_'); | |
49fb5799 | 995 | |
fcf08f5b DL |
996 | do_number: |
997 | /* Format the number according to the MODIFIER flag. */ | |
49fb5799 | 998 | |
fcf08f5b DL |
999 | if (modifier == L_('O') && 0 <= number_value) |
1000 | { | |
4b7c78fc | 1001 | #ifdef _NL_CURRENT |
fcf08f5b DL |
1002 | /* Get the locale specific alternate representation of |
1003 | the number NUMBER_VALUE. If none exist NULL is returned. */ | |
1004 | const CHAR_T *cp = nl_get_alt_digit (number_value | |
1005 | HELPER_LOCALE_ARG); | |
1006 | ||
1007 | if (cp != NULL) | |
1008 | { | |
1009 | size_t digitlen = STRLEN (cp); | |
1010 | if (digitlen != 0) | |
1011 | { | |
1012 | cpy (digitlen, cp); | |
1013 | break; | |
1014 | } | |
1015 | } | |
4b7c78fc UD |
1016 | #else |
1017 | # if HAVE_STRFTIME | |
fcf08f5b | 1018 | goto underlying_strftime; |
4b7c78fc | 1019 | # endif |
49fb5799 | 1020 | #endif |
fcf08f5b DL |
1021 | } |
1022 | { | |
1023 | unsigned int u = number_value; | |
1024 | ||
1025 | bufp = buf + sizeof (buf) / sizeof (buf[0]); | |
1026 | negative_number = number_value < 0; | |
49fb5799 | 1027 | |
fcf08f5b DL |
1028 | if (negative_number) |
1029 | u = -u; | |
49fb5799 | 1030 | |
fcf08f5b DL |
1031 | do |
1032 | *--bufp = u % 10 + L_('0'); | |
1033 | while ((u /= 10) != 0); | |
1034 | } | |
49fb5799 | 1035 | |
fcf08f5b DL |
1036 | do_number_sign_and_padding: |
1037 | if (negative_number) | |
1038 | *--bufp = L_('-'); | |
1039 | ||
1040 | if (pad != L_('-')) | |
1041 | { | |
1042 | int padding = digits - (buf + (sizeof (buf) / sizeof (buf[0])) | |
1043 | - bufp); | |
1044 | ||
1045 | if (padding > 0) | |
1046 | { | |
1047 | if (pad == L_('_')) | |
1048 | { | |
1049 | if ((size_t) padding >= maxsize - i) | |
1050 | return 0; | |
1051 | ||
1052 | if (p) | |
1053 | memset_space (p, padding); | |
1054 | i += padding; | |
1055 | width = width > padding ? width - padding : 0; | |
1056 | } | |
1057 | else | |
1058 | { | |
1059 | if ((size_t) digits >= maxsize - i) | |
1060 | return 0; | |
1061 | ||
1062 | if (negative_number) | |
1063 | { | |
1064 | ++bufp; | |
1065 | ||
1066 | if (p) | |
1067 | *p++ = L_('-'); | |
1068 | ++i; | |
1069 | } | |
1070 | ||
1071 | if (p) | |
1072 | memset_zero (p, padding); | |
1073 | i += padding; | |
1074 | width = 0; | |
1075 | } | |
1076 | } | |
1077 | } | |
1078 | ||
1079 | cpy (buf + sizeof (buf) / sizeof (buf[0]) - bufp, bufp); | |
1080 | break; | |
1081 | ||
1082 | case L_('F'): | |
1083 | if (modifier != 0) | |
1084 | goto bad_format; | |
1085 | subfmt = L_("%Y-%m-%d"); | |
1086 | goto subformat; | |
1087 | ||
1088 | case L_('H'): | |
1089 | if (modifier == L_('E')) | |
1090 | goto bad_format; | |
1091 | ||
1092 | DO_NUMBER (2, tp->tm_hour); | |
1093 | ||
1094 | case L_('I'): | |
1095 | if (modifier == L_('E')) | |
1096 | goto bad_format; | |
1097 | ||
1098 | DO_NUMBER (2, hour12); | |
1099 | ||
1100 | case L_('k'): /* GNU extension. */ | |
1101 | if (modifier == L_('E')) | |
1102 | goto bad_format; | |
1103 | ||
1104 | DO_NUMBER_SPACEPAD (2, tp->tm_hour); | |
1105 | ||
1106 | case L_('l'): /* GNU extension. */ | |
1107 | if (modifier == L_('E')) | |
1108 | goto bad_format; | |
1109 | ||
1110 | DO_NUMBER_SPACEPAD (2, hour12); | |
1111 | ||
1112 | case L_('j'): | |
1113 | if (modifier == L_('E')) | |
1114 | goto bad_format; | |
1115 | ||
1116 | DO_NUMBER (3, 1 + tp->tm_yday); | |
1117 | ||
1118 | case L_('M'): | |
1119 | if (modifier == L_('E')) | |
1120 | goto bad_format; | |
1121 | ||
1122 | DO_NUMBER (2, tp->tm_min); | |
1123 | ||
1124 | case L_('m'): | |
1125 | if (modifier == L_('E')) | |
1126 | goto bad_format; | |
1127 | ||
1128 | DO_NUMBER (2, tp->tm_mon + 1); | |
1129 | ||
1130 | #ifndef _LIBC | |
1131 | case L_('N'): /* GNU extension. */ | |
1132 | if (modifier == L_('E')) | |
1133 | goto bad_format; | |
1134 | ||
1135 | number_value = ns; | |
1136 | if (width != -1) | |
1137 | { | |
1138 | /* Take an explicit width less than 9 as a precision. */ | |
1139 | int j; | |
1140 | for (j = width; j < 9; j++) | |
1141 | number_value /= 10; | |
1142 | } | |
1143 | ||
1144 | DO_NUMBER (9, number_value); | |
1145 | #endif | |
49fb5799 | 1146 | |
fcf08f5b DL |
1147 | case L_('n'): |
1148 | add (1, *p = L_('\n')); | |
1149 | break; | |
49fb5799 | 1150 | |
fcf08f5b DL |
1151 | case L_('P'): |
1152 | to_lowcase = 1; | |
4b7c78fc | 1153 | #if !defined _NL_CURRENT && HAVE_STRFTIME |
fcf08f5b | 1154 | format_char = L_('p'); |
4b7c78fc | 1155 | #endif |
fcf08f5b DL |
1156 | /* FALLTHROUGH */ |
1157 | ||
1158 | case L_('p'): | |
1159 | if (change_case) | |
1160 | { | |
1161 | to_uppcase = 0; | |
1162 | to_lowcase = 1; | |
1163 | } | |
4b7c78fc | 1164 | #if defined _NL_CURRENT || !HAVE_STRFTIME |
fcf08f5b DL |
1165 | cpy (ap_len, ampm); |
1166 | break; | |
4b7c78fc | 1167 | #else |
fcf08f5b | 1168 | goto underlying_strftime; |
4b7c78fc | 1169 | #endif |
49fb5799 | 1170 | |
fcf08f5b DL |
1171 | case L_('R'): |
1172 | subfmt = L_("%H:%M"); | |
1173 | goto subformat; | |
49fb5799 | 1174 | |
fcf08f5b | 1175 | case L_('r'): |
49fb5799 | 1176 | #ifdef _NL_CURRENT |
fcf08f5b DL |
1177 | if (*(subfmt = (const CHAR_T *) _NL_CURRENT (LC_TIME, |
1178 | NLW(T_FMT_AMPM))) | |
1179 | == L_('\0')) | |
49fb5799 | 1180 | #endif |
fcf08f5b DL |
1181 | subfmt = L_("%I:%M:%S %p"); |
1182 | goto subformat; | |
49fb5799 | 1183 | |
fcf08f5b DL |
1184 | case L_('S'): |
1185 | if (modifier == L_('E')) | |
1186 | goto bad_format; | |
49fb5799 | 1187 | |
fcf08f5b | 1188 | DO_NUMBER (2, tp->tm_sec); |
49fb5799 | 1189 | |
fcf08f5b DL |
1190 | case L_('s'): /* GNU extension. */ |
1191 | { | |
1192 | struct tm ltm; | |
1193 | time_t t; | |
49fb5799 | 1194 | |
fcf08f5b DL |
1195 | ltm = *tp; |
1196 | t = mktime (<m); | |
49fb5799 | 1197 | |
fcf08f5b DL |
1198 | /* Generate string value for T using time_t arithmetic; |
1199 | this works even if sizeof (long) < sizeof (time_t). */ | |
49fb5799 | 1200 | |
fcf08f5b DL |
1201 | bufp = buf + sizeof (buf) / sizeof (buf[0]); |
1202 | negative_number = t < 0; | |
49fb5799 | 1203 | |
fcf08f5b DL |
1204 | do |
1205 | { | |
1206 | int d = t % 10; | |
1207 | t /= 10; | |
49fb5799 | 1208 | |
fcf08f5b DL |
1209 | if (negative_number) |
1210 | { | |
1211 | d = -d; | |
49fb5799 | 1212 | |
fcf08f5b DL |
1213 | /* Adjust if division truncates to minus infinity. */ |
1214 | if (0 < -1 % 10 && d < 0) | |
1215 | { | |
1216 | t++; | |
1217 | d += 10; | |
1218 | } | |
1219 | } | |
49fb5799 | 1220 | |
fcf08f5b DL |
1221 | *--bufp = d + L_('0'); |
1222 | } | |
1223 | while (t != 0); | |
49fb5799 | 1224 | |
fcf08f5b DL |
1225 | digits = 1; |
1226 | goto do_number_sign_and_padding; | |
1227 | } | |
49fb5799 | 1228 | |
fcf08f5b DL |
1229 | case L_('X'): |
1230 | if (modifier == L_('O')) | |
1231 | goto bad_format; | |
49fb5799 | 1232 | #ifdef _NL_CURRENT |
fcf08f5b DL |
1233 | if (! (modifier == L_('E') |
1234 | && (*(subfmt = | |
1235 | (const CHAR_T *) _NL_CURRENT (LC_TIME, NLW(ERA_T_FMT))) | |
1236 | != L_('\0')))) | |
1237 | subfmt = (const CHAR_T *) _NL_CURRENT (LC_TIME, NLW(T_FMT)); | |
1238 | goto subformat; | |
4b7c78fc UD |
1239 | #else |
1240 | # if HAVE_STRFTIME | |
fcf08f5b | 1241 | goto underlying_strftime; |
4b7c78fc | 1242 | # else |
fcf08f5b | 1243 | /* Fall through. */ |
4b7c78fc UD |
1244 | # endif |
1245 | #endif | |
fcf08f5b DL |
1246 | case L_('T'): |
1247 | subfmt = L_("%H:%M:%S"); | |
1248 | goto subformat; | |
1249 | ||
1250 | case L_('t'): | |
1251 | add (1, *p = L_('\t')); | |
1252 | break; | |
1253 | ||
1254 | case L_('u'): | |
1255 | DO_NUMBER (1, (tp->tm_wday - 1 + 7) % 7 + 1); | |
1256 | ||
1257 | case L_('U'): | |
1258 | if (modifier == L_('E')) | |
1259 | goto bad_format; | |
1260 | ||
1261 | DO_NUMBER (2, (tp->tm_yday - tp->tm_wday + 7) / 7); | |
1262 | ||
1263 | case L_('V'): | |
1264 | case L_('g'): | |
1265 | case L_('G'): | |
1266 | if (modifier == L_('E')) | |
1267 | goto bad_format; | |
1268 | { | |
1269 | int year = tp->tm_year + TM_YEAR_BASE; | |
1270 | int days = iso_week_days (tp->tm_yday, tp->tm_wday); | |
1271 | ||
1272 | if (days < 0) | |
1273 | { | |
1274 | /* This ISO week belongs to the previous year. */ | |
1275 | year--; | |
1276 | days = iso_week_days (tp->tm_yday + (365 + __isleap (year)), | |
1277 | tp->tm_wday); | |
1278 | } | |
1279 | else | |
1280 | { | |
1281 | int d = iso_week_days (tp->tm_yday - (365 + __isleap (year)), | |
1282 | tp->tm_wday); | |
1283 | if (0 <= d) | |
1284 | { | |
1285 | /* This ISO week belongs to the next year. */ | |
1286 | year++; | |
1287 | days = d; | |
1288 | } | |
1289 | } | |
1290 | ||
1291 | switch (*f) | |
1292 | { | |
1293 | case L_('g'): | |
1294 | DO_NUMBER (2, (year % 100 + 100) % 100); | |
1295 | ||
1296 | case L_('G'): | |
1297 | DO_NUMBER (1, year); | |
1298 | ||
1299 | default: | |
1300 | DO_NUMBER (2, days / 7 + 1); | |
1301 | } | |
1302 | } | |
1303 | ||
1304 | case L_('W'): | |
1305 | if (modifier == L_('E')) | |
1306 | goto bad_format; | |
1307 | ||
1308 | DO_NUMBER (2, (tp->tm_yday - (tp->tm_wday - 1 + 7) % 7 + 7) / 7); | |
1309 | ||
1310 | case L_('w'): | |
1311 | if (modifier == L_('E')) | |
1312 | goto bad_format; | |
1313 | ||
1314 | DO_NUMBER (1, tp->tm_wday); | |
1315 | ||
1316 | case L_('Y'): | |
1317 | if (modifier == 'E') | |
1318 | { | |
4b7c78fc | 1319 | #if HAVE_STRUCT_ERA_ENTRY |
fcf08f5b DL |
1320 | struct era_entry *era = _nl_get_era_entry (tp HELPER_LOCALE_ARG); |
1321 | if (era) | |
1322 | { | |
e50517d9 | 1323 | # ifdef COMPILE_WIDE |
fcf08f5b | 1324 | subfmt = era->era_wformat; |
e50517d9 | 1325 | # else |
fcf08f5b | 1326 | subfmt = era->era_format; |
e50517d9 | 1327 | # endif |
fcf08f5b DL |
1328 | goto subformat; |
1329 | } | |
4b7c78fc UD |
1330 | #else |
1331 | # if HAVE_STRFTIME | |
fcf08f5b | 1332 | goto underlying_strftime; |
4b7c78fc | 1333 | # endif |
49fb5799 | 1334 | #endif |
fcf08f5b DL |
1335 | } |
1336 | if (modifier == L_('O')) | |
1337 | goto bad_format; | |
1338 | else | |
1339 | DO_NUMBER (1, tp->tm_year + TM_YEAR_BASE); | |
1340 | ||
1341 | case L_('y'): | |
1342 | if (modifier == L_('E')) | |
1343 | { | |
4b7c78fc | 1344 | #if HAVE_STRUCT_ERA_ENTRY |
fcf08f5b DL |
1345 | struct era_entry *era = _nl_get_era_entry (tp HELPER_LOCALE_ARG); |
1346 | if (era) | |
1347 | { | |
1348 | int delta = tp->tm_year - era->start_date[0]; | |
1349 | DO_NUMBER (1, (era->offset | |
1350 | + delta * era->absolute_direction)); | |
1351 | } | |
4b7c78fc UD |
1352 | #else |
1353 | # if HAVE_STRFTIME | |
fcf08f5b | 1354 | goto underlying_strftime; |
4b7c78fc | 1355 | # endif |
49fb5799 | 1356 | #endif |
fcf08f5b DL |
1357 | } |
1358 | DO_NUMBER (2, (tp->tm_year % 100 + 100) % 100); | |
49fb5799 | 1359 | |
fcf08f5b DL |
1360 | case L_('Z'): |
1361 | if (change_case) | |
1362 | { | |
1363 | to_uppcase = 0; | |
1364 | to_lowcase = 1; | |
1365 | } | |
68c45bf0 PE |
1366 | |
1367 | #if HAVE_TZNAME | |
fcf08f5b DL |
1368 | /* The tzset() call might have changed the value. */ |
1369 | if (!(zone && *zone) && tp->tm_isdst >= 0) | |
1370 | zone = tzname[tp->tm_isdst]; | |
68c45bf0 | 1371 | #endif |
fcf08f5b DL |
1372 | if (! zone) |
1373 | zone = ""; | |
e50517d9 GM |
1374 | |
1375 | #ifdef COMPILE_WIDE | |
fcf08f5b DL |
1376 | { |
1377 | /* The zone string is always given in multibyte form. We have | |
1378 | to transform it first. */ | |
1379 | wchar_t *wczone; | |
1380 | size_t len; | |
1381 | widen (zone, wczone, len); | |
1382 | cpy (len, wczone); | |
1383 | } | |
e50517d9 | 1384 | #else |
fcf08f5b | 1385 | cpy (strlen (zone), zone); |
e50517d9 | 1386 | #endif |
fcf08f5b | 1387 | break; |
49fb5799 | 1388 | |
fcf08f5b DL |
1389 | case L_('z'): |
1390 | if (tp->tm_isdst < 0) | |
1391 | break; | |
49fb5799 | 1392 | |
fcf08f5b DL |
1393 | { |
1394 | int diff; | |
49fb5799 | 1395 | #if HAVE_TM_GMTOFF |
fcf08f5b | 1396 | diff = tp->tm_gmtoff; |
49fb5799 | 1397 | #else |
fcf08f5b DL |
1398 | if (ut) |
1399 | diff = 0; | |
1400 | else | |
1401 | { | |
1402 | struct tm gtm; | |
1403 | struct tm ltm; | |
1404 | time_t lt; | |
1405 | ||
1406 | ltm = *tp; | |
1407 | lt = mktime (<m); | |
1408 | ||
1409 | if (lt == (time_t) -1) | |
1410 | { | |
1411 | /* mktime returns -1 for errors, but -1 is also a | |
1412 | valid time_t value. Check whether an error really | |
1413 | occurred. */ | |
1414 | struct tm tm; | |
1415 | ||
1416 | if (! my_strftime_localtime_r (<, &tm) | |
1417 | || ((ltm.tm_sec ^ tm.tm_sec) | |
1418 | | (ltm.tm_min ^ tm.tm_min) | |
1419 | | (ltm.tm_hour ^ tm.tm_hour) | |
1420 | | (ltm.tm_mday ^ tm.tm_mday) | |
1421 | | (ltm.tm_mon ^ tm.tm_mon) | |
1422 | | (ltm.tm_year ^ tm.tm_year))) | |
1423 | break; | |
1424 | } | |
1425 | ||
1426 | if (! my_strftime_gmtime_r (<, >m)) | |
1427 | break; | |
1428 | ||
1429 | diff = tm_diff (<m, >m); | |
1430 | } | |
49fb5799 PE |
1431 | #endif |
1432 | ||
fcf08f5b DL |
1433 | if (diff < 0) |
1434 | { | |
1435 | add (1, *p = L_('-')); | |
1436 | diff = -diff; | |
1437 | } | |
1438 | else | |
1439 | add (1, *p = L_('+')); | |
1440 | ||
1441 | diff /= 60; | |
1442 | DO_NUMBER (4, (diff / 60) * 100 + diff % 60); | |
1443 | } | |
1444 | ||
1445 | case L_('\0'): /* GNU extension: % at end of format. */ | |
1446 | --f; | |
1447 | /* Fall through. */ | |
1448 | default: | |
1449 | /* Unknown format; output the format, including the '%', | |
1450 | since this is most likely the right thing to do if a | |
1451 | multibyte string has been misparsed. */ | |
1452 | bad_format: | |
1453 | { | |
1454 | int flen; | |
1455 | for (flen = 1; f[1 - flen] != L_('%'); flen++) | |
1456 | continue; | |
1457 | cpy (flen, &f[1 - flen]); | |
1458 | } | |
1459 | break; | |
1460 | } | |
49fb5799 PE |
1461 | } |
1462 | ||
68c45bf0 | 1463 | if (p && maxsize != 0) |
e50517d9 | 1464 | *p = L_('\0'); |
49fb5799 PE |
1465 | return i; |
1466 | } | |
fcf08f5b DL |
1467 | #ifdef _LIBC |
1468 | libc_hidden_def (my_strftime) | |
1469 | #endif | |
e50517d9 GM |
1470 | |
1471 | ||
1472 | #ifdef emacs | |
fcf08f5b | 1473 | #undef ut |
e50517d9 | 1474 | /* For Emacs we have a separate interface which corresponds to the normal |
fcf08f5b | 1475 | strftime function plus the ut argument, but without the ns argument. */ |
e50517d9 | 1476 | size_t |
e6cb2cbb JB |
1477 | emacs_strftimeu (s, maxsize, format, tp, ut) |
1478 | char *s; | |
1479 | size_t maxsize; | |
1480 | const char *format; | |
1481 | const struct tm *tp; | |
1482 | int ut; | |
e50517d9 | 1483 | { |
fcf08f5b | 1484 | return my_strftime (s, maxsize, format, tp, ut, 0); |
e50517d9 GM |
1485 | } |
1486 | #endif | |
ab5796a9 MB |
1487 | |
1488 | /* arch-tag: 662bc9c4-f8e2-41b6-bf96-b8346d0ce0d8 | |
1489 | (do not change this comment) */ |