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d64b6ad0 | 1 | /* Copyright (C) 1991,92,93,94,95,96,97,98,99 Free Software Foundation, Inc. |
26761c28 | 2 | This file is part of the GNU C Library. |
28f540f4 | 3 | |
26761c28 UD |
4 | The GNU C Library is free software; you can redistribute it and/or |
5 | modify it under the terms of the GNU Library General Public License as | |
6 | published by the Free Software Foundation; either version 2 of the | |
7 | License, or (at your option) any later version. | |
28f540f4 | 8 | |
26761c28 UD |
9 | The GNU C Library is distributed in the hope that it will be useful, |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
12 | Library General Public License for more details. | |
28f540f4 | 13 | |
26761c28 UD |
14 | You should have received a copy of the GNU Library General Public |
15 | License along with the GNU C Library; see the file COPYING.LIB. If not, | |
16 | write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
17 | Boston, MA 02111-1307, USA. */ | |
28f540f4 | 18 | |
0793d348 RM |
19 | #ifdef HAVE_CONFIG_H |
20 | # include <config.h> | |
21 | #endif | |
22 | ||
23 | #ifdef _LIBC | |
24 | # define HAVE_LIMITS_H 1 | |
25 | # define HAVE_MBLEN 1 | |
ec4b0518 | 26 | # define HAVE_MBRLEN 1 |
d68171ed | 27 | # define HAVE_STRUCT_ERA_ENTRY 1 |
f0f1bf85 | 28 | # define HAVE_TM_GMTOFF 1 |
0793d348 | 29 | # define HAVE_TM_ZONE 1 |
68dbb3a6 UD |
30 | # define HAVE_TZNAME 1 |
31 | # define HAVE_TZSET 1 | |
ec4b0518 | 32 | # define MULTIBYTE_IS_FORMAT_SAFE 1 |
0793d348 | 33 | # define STDC_HEADERS 1 |
0793d348 RM |
34 | # include "../locale/localeinfo.h" |
35 | #endif | |
36 | ||
a5a0310d UD |
37 | #if defined emacs && !defined HAVE_BCOPY |
38 | # define HAVE_MEMCPY 1 | |
39 | #endif | |
40 | ||
f8b87ef0 | 41 | #include <ctype.h> |
0793d348 | 42 | #include <sys/types.h> /* Some systems define `time_t' here. */ |
75cd5204 RM |
43 | |
44 | #ifdef TIME_WITH_SYS_TIME | |
45 | # include <sys/time.h> | |
46 | # include <time.h> | |
47 | #else | |
48 | # ifdef HAVE_SYS_TIME_H | |
49 | # include <sys/time.h> | |
50 | # else | |
51 | # include <time.h> | |
52 | # endif | |
53 | #endif | |
8a4b65b4 UD |
54 | #if HAVE_TZNAME |
55 | extern char *tzname[]; | |
56 | #endif | |
28f540f4 | 57 | |
ec4b0518 UD |
58 | /* Do multibyte processing if multibytes are supported, unless |
59 | multibyte sequences are safe in formats. Multibyte sequences are | |
60 | safe if they cannot contain byte sequences that look like format | |
61 | conversion specifications. The GNU C Library uses UTF8 multibyte | |
62 | encoding, which is safe for formats, but strftime.c can be used | |
63 | with other C libraries that use unsafe encodings. */ | |
64 | #define DO_MULTIBYTE (HAVE_MBLEN && ! MULTIBYTE_IS_FORMAT_SAFE) | |
65 | ||
66 | #if DO_MULTIBYTE | |
67 | # if HAVE_MBRLEN | |
68 | # include <wchar.h> | |
69 | # else | |
70 | /* Simulate mbrlen with mblen as best we can. */ | |
71 | # define mbstate_t int | |
72 | # define mbrlen(s, n, ps) mblen (s, n) | |
73 | # define mbsinit(ps) (*(ps) == 0) | |
74 | # endif | |
75 | static const mbstate_t mbstate_zero; | |
0793d348 RM |
76 | #endif |
77 | ||
78 | #if HAVE_LIMITS_H | |
79 | # include <limits.h> | |
28f540f4 RM |
80 | #endif |
81 | ||
0793d348 RM |
82 | #if STDC_HEADERS |
83 | # include <stddef.h> | |
84 | # include <stdlib.h> | |
85 | # include <string.h> | |
0793d348 RM |
86 | #endif |
87 | ||
d64b6ad0 | 88 | #ifdef COMPILE_WIDE |
4b10dd6c | 89 | # include <endian.h> |
d64b6ad0 UD |
90 | # define CHAR_T wchar_t |
91 | # define UCHAR_T unsigned int | |
92 | # define L_(Str) L##Str | |
4b10dd6c UD |
93 | # if __BYTE_ORDER == __LITTLE_ENDIAN |
94 | # define NLW(Sym) _NL_W##Sym##_EL | |
95 | # else | |
96 | # define NLW(Sym) _NL_W##Sym##_EB | |
97 | # endif | |
d64b6ad0 UD |
98 | |
99 | # define MEMCPY(d, s, n) wmemcpy (d, s, n) | |
100 | # define STRLEN(s) wcslen (s) | |
101 | ||
86187531 | 102 | #else |
d64b6ad0 UD |
103 | # define CHAR_T char |
104 | # define UCHAR_T unsigned char | |
105 | # define L_(Str) Str | |
106 | # define NLW(Sym) Sym | |
107 | ||
108 | # if !defined STDC_HEADERS && !defined HAVE_MEMCPY | |
109 | # define MEMCPY(d, s, n) bcopy ((s), (d), (n)) | |
110 | # else | |
111 | # define MEMCPY(d, s, n) memcpy ((d), (s), (n)) | |
112 | # endif | |
113 | # define STRLEN(s) strlen (s) | |
114 | ||
115 | # ifdef _LIBC | |
116 | # define MEMPCPY(d, s, n) __mempcpy (d, s, n) | |
117 | # else | |
118 | # ifndef HAVE_MEMPCPY | |
119 | # define MEMPCPY(d, s, n) ((void *) ((char *) memcpy (d, s, n) + (n))) | |
120 | # endif | |
86187531 UD |
121 | # endif |
122 | #endif | |
123 | ||
0793d348 | 124 | #ifndef __P |
d64b6ad0 | 125 | # if defined __GNUC__ || (defined __STDC__ && __STDC__) |
6d52618b UD |
126 | # define __P(args) args |
127 | # else | |
128 | # define __P(args) () | |
129 | # endif /* GCC. */ | |
0793d348 RM |
130 | #endif /* Not __P. */ |
131 | ||
132 | #ifndef PTR | |
6d52618b UD |
133 | # ifdef __STDC__ |
134 | # define PTR void * | |
135 | # else | |
136 | # define PTR char * | |
137 | # endif | |
0793d348 RM |
138 | #endif |
139 | ||
f0f1bf85 | 140 | #ifndef CHAR_BIT |
6d52618b UD |
141 | # define CHAR_BIT 8 |
142 | #endif | |
143 | ||
144 | #ifndef NULL | |
145 | # define NULL 0 | |
f0f1bf85 UD |
146 | #endif |
147 | ||
148 | #define TYPE_SIGNED(t) ((t) -1 < 0) | |
149 | ||
150 | /* Bound on length of the string representing an integer value of type t. | |
151 | Subtract one for the sign bit if t is signed; | |
152 | 302 / 1000 is log10 (2) rounded up; | |
153 | add one for integer division truncation; | |
154 | add one more for a minus sign if t is signed. */ | |
155 | #define INT_STRLEN_BOUND(t) \ | |
3465c0ce | 156 | ((sizeof (t) * CHAR_BIT - TYPE_SIGNED (t)) * 302 / 1000 + 1 + TYPE_SIGNED (t)) |
f0f1bf85 UD |
157 | |
158 | #define TM_YEAR_BASE 1900 | |
159 | ||
ec4b0518 UD |
160 | #ifndef __isleap |
161 | /* Nonzero if YEAR is a leap year (every 4 years, | |
162 | except every 100th isn't, and every 400th is). */ | |
6d52618b | 163 | # define __isleap(year) \ |
ec4b0518 UD |
164 | ((year) % 4 == 0 && ((year) % 100 != 0 || (year) % 400 == 0)) |
165 | #endif | |
166 | ||
2de99474 | 167 | |
fafaa44e | 168 | #ifdef _LIBC |
05f732b3 UD |
169 | # define my_strftime_gmtime_r __gmtime_r |
170 | # define my_strftime_localtime_r __localtime_r | |
10dc2a90 UD |
171 | # define tzname __tzname |
172 | # define tzset __tzset | |
fafaa44e | 173 | #else |
05f732b3 UD |
174 | |
175 | /* If we're a strftime substitute in a GNU program, then prefer gmtime | |
176 | to gmtime_r, since many gmtime_r implementations are buggy. | |
177 | Similarly for localtime_r. */ | |
178 | ||
179 | # if ! HAVE_TM_GMTOFF | |
180 | static struct tm *my_strftime_gmtime_r __P ((const time_t *, struct tm *)); | |
fafaa44e | 181 | static struct tm * |
05f732b3 | 182 | my_strftime_gmtime_r (t, tp) |
fafaa44e UD |
183 | const time_t *t; |
184 | struct tm *tp; | |
185 | { | |
186 | struct tm *l = gmtime (t); | |
187 | if (! l) | |
188 | return 0; | |
189 | *tp = *l; | |
190 | return tp; | |
191 | } | |
05f732b3 | 192 | # endif /* ! HAVE_TM_GMTOFF */ |
fafaa44e | 193 | |
05f732b3 | 194 | static struct tm *my_strftime_localtime_r __P ((const time_t *, struct tm *)); |
fafaa44e | 195 | static struct tm * |
05f732b3 | 196 | my_strftime_localtime_r (t, tp) |
fafaa44e UD |
197 | const time_t *t; |
198 | struct tm *tp; | |
199 | { | |
200 | struct tm *l = localtime (t); | |
201 | if (! l) | |
202 | return 0; | |
203 | *tp = *l; | |
204 | return tp; | |
205 | } | |
fe0ec73e | 206 | #endif /* ! defined _LIBC */ |
fafaa44e UD |
207 | |
208 | ||
2d7da676 | 209 | #if !defined memset && !defined HAVE_MEMSET && !defined _LIBC |
68dbb3a6 UD |
210 | /* Some systems lack the `memset' function and we don't want to |
211 | introduce additional dependencies. */ | |
2d7da676 UD |
212 | /* The SGI compiler reportedly barfs on the trailing null |
213 | if we use a string constant as the initializer. 28 June 1997, rms. */ | |
d64b6ad0 UD |
214 | static const CHAR_T spaces[16] = /* " " */ |
215 | { | |
216 | L_(' '),L_(' '),L_(' '),L_(' '),L_(' '),L_(' '),L_(' '),L_(' '), | |
217 | L_(' '),L_(' '),L_(' '),L_(' '),L_(' '),L_(' '),L_(' '),L_(' ') | |
218 | }; | |
219 | static const CHAR_T zeroes[16] = /* "0000000000000000" */ | |
220 | { | |
221 | L_('0'),L_('0'),L_('0'),L_('0'),L_('0'),L_('0'),L_('0'),L_('0'), | |
222 | L_('0'),L_('0'),L_('0'),L_('0'),L_('0'),L_('0'),L_('0'),L_('0') | |
223 | }; | |
68dbb3a6 UD |
224 | |
225 | # define memset_space(P, Len) \ | |
226 | do { \ | |
227 | int _len = (Len); \ | |
63551311 | 228 | \ |
68dbb3a6 UD |
229 | do \ |
230 | { \ | |
231 | int _this = _len > 16 ? 16 : _len; \ | |
d64b6ad0 | 232 | (P) = MEMPCPY ((P), spaces, _this * sizeof (CHAR_T)); \ |
68dbb3a6 UD |
233 | _len -= _this; \ |
234 | } \ | |
235 | while (_len > 0); \ | |
236 | } while (0) | |
779ae82e UD |
237 | |
238 | # define memset_zero(P, Len) \ | |
239 | do { \ | |
240 | int _len = (Len); \ | |
241 | \ | |
242 | do \ | |
243 | { \ | |
244 | int _this = _len > 16 ? 16 : _len; \ | |
d64b6ad0 | 245 | (P) = MEMPCPY ((P), zeroes, _this * sizeof (CHAR_T)); \ |
779ae82e UD |
246 | _len -= _this; \ |
247 | } \ | |
248 | while (_len > 0); \ | |
249 | } while (0) | |
68dbb3a6 | 250 | #else |
d64b6ad0 UD |
251 | # ifdef COMPILE_WIDE |
252 | # define memset_space(P, Len) (wmemset ((P), L' ', (Len)), (P) += (Len)) | |
253 | # define memset_zero(P, Len) (wmemset ((P), L'0', (Len)), (P) += (Len)) | |
254 | # else | |
255 | # define memset_space(P, Len) (memset ((P), ' ', (Len)), (P) += (Len)) | |
256 | # define memset_zero(P, Len) (memset ((P), '0', (Len)), (P) += (Len)) | |
257 | # endif | |
68dbb3a6 UD |
258 | #endif |
259 | ||
76b87c03 | 260 | #define add(n, f) \ |
28f540f4 RM |
261 | do \ |
262 | { \ | |
f8b87ef0 UD |
263 | int _n = (n); \ |
264 | int _delta = width - _n; \ | |
6d52618b UD |
265 | int _incr = _n + (_delta > 0 ? _delta : 0); \ |
266 | if (i + _incr >= maxsize) \ | |
28f540f4 | 267 | return 0; \ |
6d52618b UD |
268 | if (p) \ |
269 | { \ | |
270 | if (_delta > 0) \ | |
779ae82e | 271 | { \ |
d64b6ad0 | 272 | if (pad == L_('0')) \ |
779ae82e UD |
273 | memset_zero (p, _delta); \ |
274 | else \ | |
275 | memset_space (p, _delta); \ | |
276 | } \ | |
6d52618b UD |
277 | f; \ |
278 | p += _n; \ | |
279 | } \ | |
280 | i += _incr; \ | |
28f540f4 | 281 | } while (0) |
f8b87ef0 | 282 | |
76b87c03 | 283 | #define cpy(n, s) \ |
f8b87ef0 UD |
284 | add ((n), \ |
285 | if (to_lowcase) \ | |
286 | memcpy_lowcase (p, (s), _n); \ | |
6d52618b UD |
287 | else if (to_uppcase) \ |
288 | memcpy_uppcase (p, (s), _n); \ | |
f8b87ef0 | 289 | else \ |
d64b6ad0 UD |
290 | MEMCPY ((PTR) p, (PTR) (s), _n)) |
291 | ||
292 | #ifdef COMPILE_WIDE | |
293 | # define widen(os, ws, l) \ | |
294 | { \ | |
295 | mbstate_t __st; \ | |
296 | const char *__s = os; \ | |
297 | memset (&__st, '\0', sizeof (__st)); \ | |
298 | l = __mbsrtowcs (NULL, &__s, 0, &__st); \ | |
299 | ws = alloca ((l + 1) * sizeof (wchar_t)); \ | |
300 | (void) __mbsrtowcs (ws, &__s, l, &__st); \ | |
301 | } | |
302 | #endif | |
f8b87ef0 UD |
303 | |
304 | ||
d64b6ad0 UD |
305 | #ifdef COMPILE_WIDE |
306 | # define TOUPPER(Ch) towupper (Ch) | |
307 | # define TOLOWER(Ch) towlower (Ch) | |
f8b87ef0 | 308 | #else |
d64b6ad0 UD |
309 | # ifdef _LIBC |
310 | # define TOUPPER(Ch) toupper (Ch) | |
311 | # define TOLOWER(Ch) tolower (Ch) | |
312 | # else | |
313 | # define TOUPPER(Ch) (islower (Ch) ? toupper (Ch) : (Ch)) | |
314 | # define TOLOWER(Ch) (isupper (Ch) ? tolower (Ch) : (Ch)) | |
315 | # endif | |
f8b87ef0 | 316 | #endif |
7e3be507 UD |
317 | /* We don't use `isdigit' here since the locale dependent |
318 | interpretation is not what we want here. We only need to accept | |
319 | the arabic digits in the ASCII range. One day there is perhaps a | |
320 | more reliable way to accept other sets of digits. */ | |
d64b6ad0 | 321 | #define ISDIGIT(Ch) ((unsigned int) (Ch) - L_('0') <= 9) |
f8b87ef0 | 322 | |
d64b6ad0 UD |
323 | static CHAR_T *memcpy_lowcase __P ((CHAR_T *dest, const CHAR_T *src, |
324 | size_t len)); | |
f8b87ef0 | 325 | |
d64b6ad0 | 326 | static CHAR_T * |
f8b87ef0 | 327 | memcpy_lowcase (dest, src, len) |
d64b6ad0 UD |
328 | CHAR_T *dest; |
329 | const CHAR_T *src; | |
f8b87ef0 UD |
330 | size_t len; |
331 | { | |
332 | while (len-- > 0) | |
d64b6ad0 | 333 | dest[len] = TOLOWER ((UCHAR_T) src[len]); |
f8b87ef0 UD |
334 | return dest; |
335 | } | |
0793d348 | 336 | |
d64b6ad0 UD |
337 | static CHAR_T *memcpy_uppcase __P ((CHAR_T *dest, const CHAR_T *src, |
338 | size_t len)); | |
6d52618b | 339 | |
d64b6ad0 | 340 | static CHAR_T * |
6d52618b | 341 | memcpy_uppcase (dest, src, len) |
d64b6ad0 UD |
342 | CHAR_T *dest; |
343 | const CHAR_T *src; | |
6d52618b UD |
344 | size_t len; |
345 | { | |
346 | while (len-- > 0) | |
d64b6ad0 | 347 | dest[len] = TOUPPER ((UCHAR_T) src[len]); |
6d52618b UD |
348 | return dest; |
349 | } | |
350 | ||
cf29ffbe | 351 | |
f0f1bf85 UD |
352 | #if ! HAVE_TM_GMTOFF |
353 | /* Yield the difference between *A and *B, | |
354 | measured in seconds, ignoring leap seconds. */ | |
9c2322bc | 355 | # define tm_diff ftime_tm_diff |
f0f1bf85 UD |
356 | static int tm_diff __P ((const struct tm *, const struct tm *)); |
357 | static int | |
358 | tm_diff (a, b) | |
359 | const struct tm *a; | |
360 | const struct tm *b; | |
361 | { | |
ec4b0518 UD |
362 | /* Compute intervening leap days correctly even if year is negative. |
363 | Take care to avoid int overflow in leap day calculations, | |
364 | but it's OK to assume that A and B are close to each other. */ | |
365 | int a4 = (a->tm_year >> 2) + (TM_YEAR_BASE >> 2) - ! (a->tm_year & 3); | |
366 | int b4 = (b->tm_year >> 2) + (TM_YEAR_BASE >> 2) - ! (b->tm_year & 3); | |
367 | int a100 = a4 / 25 - (a4 % 25 < 0); | |
368 | int b100 = b4 / 25 - (b4 % 25 < 0); | |
369 | int a400 = a100 >> 2; | |
370 | int b400 = b100 >> 2; | |
371 | int intervening_leap_days = (a4 - b4) - (a100 - b100) + (a400 - b400); | |
372 | int years = a->tm_year - b->tm_year; | |
f0f1bf85 UD |
373 | int days = (365 * years + intervening_leap_days |
374 | + (a->tm_yday - b->tm_yday)); | |
375 | return (60 * (60 * (24 * days + (a->tm_hour - b->tm_hour)) | |
376 | + (a->tm_min - b->tm_min)) | |
377 | + (a->tm_sec - b->tm_sec)); | |
378 | } | |
379 | #endif /* ! HAVE_TM_GMTOFF */ | |
28f540f4 | 380 | |
b7459e56 RM |
381 | |
382 | ||
ec4b0518 UD |
383 | /* The number of days from the first day of the first ISO week of this |
384 | year to the year day YDAY with week day WDAY. ISO weeks start on | |
385 | Monday; the first ISO week has the year's first Thursday. YDAY may | |
386 | be as small as YDAY_MINIMUM. */ | |
387 | #define ISO_WEEK_START_WDAY 1 /* Monday */ | |
388 | #define ISO_WEEK1_WDAY 4 /* Thursday */ | |
389 | #define YDAY_MINIMUM (-366) | |
390 | static int iso_week_days __P ((int, int)); | |
391 | #ifdef __GNUC__ | |
a5a0310d | 392 | __inline__ |
28f540f4 | 393 | #endif |
ec4b0518 UD |
394 | static int |
395 | iso_week_days (yday, wday) | |
396 | int yday; | |
397 | int wday; | |
28f540f4 | 398 | { |
ec4b0518 UD |
399 | /* Add enough to the first operand of % to make it nonnegative. */ |
400 | int big_enough_multiple_of_7 = (-YDAY_MINIMUM / 7 + 2) * 7; | |
401 | return (yday | |
402 | - (yday - wday + ISO_WEEK1_WDAY + big_enough_multiple_of_7) % 7 | |
403 | + ISO_WEEK1_WDAY - ISO_WEEK_START_WDAY); | |
28f540f4 RM |
404 | } |
405 | ||
ec4b0518 | 406 | |
1618c590 | 407 | #if !(defined _NL_CURRENT || HAVE_STRFTIME) |
d64b6ad0 | 408 | static CHAR_T const weekday_name[][10] = |
0793d348 | 409 | { |
d64b6ad0 UD |
410 | L_("Sunday"), L_("Monday"), L_("Tuesday"), L_("Wednesday"), |
411 | L_("Thursday"), L_("Friday"), L_("Saturday") | |
0793d348 | 412 | }; |
d64b6ad0 | 413 | static CHAR_T const month_name[][10] = |
0793d348 | 414 | { |
d64b6ad0 UD |
415 | L_("January"), L_("February"), L_("March"), L_("April"), L_("May"), |
416 | L_("June"), L_("July"), L_("August"), L_("September"), L_("October"), | |
417 | L_("November"), L_("December") | |
0793d348 RM |
418 | }; |
419 | #endif | |
28f540f4 | 420 | |
8d57beea | 421 | |
1618c590 | 422 | #ifdef emacs |
e07a51b5 UD |
423 | # define my_strftime emacs_strftimeu |
424 | # define ut_argument , ut | |
425 | # define ut_argument_spec int ut; | |
426 | # define ut_argument_spec_iso , int ut | |
1618c590 | 427 | #else |
d64b6ad0 UD |
428 | # ifdef COMPILE_WIDE |
429 | # define my_strftime wcsftime | |
430 | # else | |
431 | # define my_strftime strftime | |
432 | # endif | |
e07a51b5 UD |
433 | # define ut_argument |
434 | # define ut_argument_spec | |
435 | # define ut_argument_spec_iso | |
436 | /* We don't have this information in general. */ | |
437 | # define ut 0 | |
1618c590 UD |
438 | #endif |
439 | ||
8d57beea UD |
440 | #if !defined _LIBC && HAVE_TZNAME && HAVE_TZSET |
441 | /* Solaris 2.5 tzset sometimes modifies the storage returned by localtime. | |
442 | Work around this bug by copying *tp before it might be munged. */ | |
443 | size_t _strftime_copytm __P ((char *, size_t, const char *, | |
e07a51b5 | 444 | const struct tm * ut_argument_spec_iso)); |
8d57beea | 445 | size_t |
e07a51b5 | 446 | my_strftime (s, maxsize, format, tp ut_argument) |
d64b6ad0 | 447 | CHAR_T *s; |
8d57beea | 448 | size_t maxsize; |
d64b6ad0 | 449 | const CHAR_T *format; |
8d57beea | 450 | const struct tm *tp; |
e07a51b5 | 451 | ut_argument_spec |
8d57beea UD |
452 | { |
453 | struct tm tmcopy; | |
454 | tmcopy = *tp; | |
e07a51b5 | 455 | return _strftime_copytm (s, maxsize, format, &tmcopy ut_argument); |
8d57beea | 456 | } |
1618c590 UD |
457 | # undef my_strftime |
458 | # define my_strftime(S, Maxsize, Format, Tp) \ | |
c0e45674 | 459 | _strftime_copytm (S, Maxsize, Format, Tp) |
8d57beea UD |
460 | #endif |
461 | ||
462 | ||
28f540f4 RM |
463 | /* Write information from TP into S according to the format |
464 | string FORMAT, writing no more that MAXSIZE characters | |
465 | (including the terminating '\0') and returning number of | |
466 | characters written. If S is NULL, nothing will be written | |
467 | anywhere, so to determine how many characters would be | |
468 | written, use NULL for S and (size_t) UINT_MAX for MAXSIZE. */ | |
469 | size_t | |
e07a51b5 | 470 | my_strftime (s, maxsize, format, tp ut_argument) |
d64b6ad0 | 471 | CHAR_T *s; |
0793d348 | 472 | size_t maxsize; |
d64b6ad0 | 473 | const CHAR_T *format; |
f8b87ef0 | 474 | const struct tm *tp; |
e07a51b5 | 475 | ut_argument_spec |
28f540f4 | 476 | { |
0793d348 RM |
477 | int hour12 = tp->tm_hour; |
478 | #ifdef _NL_CURRENT | |
e503270c | 479 | /* We cannot make the following values variables since we must delay |
81e0cb2d UD |
480 | the evaluation of these values until really needed since some |
481 | expressions might not be valid in every situation. The `struct tm' | |
e503270c | 482 | might be generated by a strptime() call that initialized |
81e0cb2d UD |
483 | only a few elements. Dereference the pointers only if the format |
484 | requires this. Then it is ok to fail if the pointers are invalid. */ | |
d64b6ad0 UD |
485 | # define a_wkday \ |
486 | ((const CHAR_T *) _NL_CURRENT (LC_TIME, NLW(ABDAY_1) + tp->tm_wday)) | |
487 | # define f_wkday \ | |
488 | ((const CHAR_T *) _NL_CURRENT (LC_TIME, NLW(DAY_1) + tp->tm_wday)) | |
489 | # define a_month \ | |
490 | ((const CHAR_T *) _NL_CURRENT (LC_TIME, NLW(ABMON_1) + tp->tm_mon)) | |
491 | # define f_month \ | |
492 | ((const CHAR_T *) _NL_CURRENT (LC_TIME, NLW(MON_1) + tp->tm_mon)) | |
493 | # define ampm \ | |
494 | ((const CHAR_T *) _NL_CURRENT (LC_TIME, tp->tm_hour > 11 \ | |
495 | ? NLW(PM_STR) : NLW(AM_STR))) | |
496 | ||
497 | # define aw_len STRLEN (a_wkday) | |
498 | # define am_len STRLEN (a_month) | |
499 | # define ap_len STRLEN (ampm) | |
0793d348 | 500 | #else |
1618c590 | 501 | # if !HAVE_STRFTIME |
e503270c UD |
502 | # define f_wkday (weekday_name[tp->tm_wday]) |
503 | # define f_month (month_name[tp->tm_mon]) | |
504 | # define a_wkday f_wkday | |
505 | # define a_month f_month | |
d64b6ad0 | 506 | # define ampm (L_("AMPM") + 2 * (tp->tm_hour > 11)) |
e503270c | 507 | |
0793d348 RM |
508 | size_t aw_len = 3; |
509 | size_t am_len = 3; | |
510 | size_t ap_len = 2; | |
81e0cb2d | 511 | # endif |
1618c590 | 512 | #endif |
0793d348 | 513 | const char *zone; |
f8b87ef0 | 514 | size_t i = 0; |
d64b6ad0 UD |
515 | CHAR_T *p = s; |
516 | const CHAR_T *f; | |
28f540f4 | 517 | |
68dbb3a6 | 518 | zone = NULL; |
cd6ede75 UD |
519 | #if HAVE_TM_ZONE |
520 | /* The POSIX test suite assumes that setting | |
68dbb3a6 UD |
521 | the environment variable TZ to a new value before calling strftime() |
522 | will influence the result (the %Z format) even if the information in | |
cd6ede75 UD |
523 | TP is computed with a totally different time zone. |
524 | This is bogus: though POSIX allows bad behavior like this, | |
525 | POSIX does not require it. Do the right thing instead. */ | |
0793d348 RM |
526 | zone = (const char *) tp->tm_zone; |
527 | #endif | |
e07a51b5 UD |
528 | #if HAVE_TZNAME |
529 | if (ut) | |
530 | { | |
531 | if (! (zone && *zone)) | |
532 | zone = "GMT"; | |
533 | } | |
534 | else | |
535 | { | |
536 | /* POSIX.1 8.1.1 requires that whenever strftime() is called, the | |
537 | time zone names contained in the external variable `tzname' shall | |
538 | be set as if the tzset() function had been called. */ | |
539 | # if HAVE_TZSET | |
540 | tzset (); | |
541 | # endif | |
542 | } | |
0793d348 | 543 | #endif |
28f540f4 RM |
544 | |
545 | if (hour12 > 12) | |
546 | hour12 -= 12; | |
547 | else | |
00bc5db0 UD |
548 | if (hour12 == 0) |
549 | hour12 = 12; | |
28f540f4 RM |
550 | |
551 | for (f = format; *f != '\0'; ++f) | |
552 | { | |
5aa8ff62 | 553 | int pad = 0; /* Padding for number ('-', '_', or 0). */ |
ec4b0518 UD |
554 | int modifier; /* Field modifier ('E', 'O', or 0). */ |
555 | int digits; /* Max digits for numeric format. */ | |
556 | int number_value; /* Numeric value to be printed. */ | |
f0f1bf85 | 557 | int negative_number; /* 1 if the number is negative. */ |
d64b6ad0 UD |
558 | const CHAR_T *subfmt; |
559 | CHAR_T *bufp; | |
560 | CHAR_T buf[1 + (sizeof (int) < sizeof (time_t) | |
561 | ? INT_STRLEN_BOUND (time_t) | |
562 | : INT_STRLEN_BOUND (int))]; | |
f8b87ef0 UD |
563 | int width = -1; |
564 | int to_lowcase = 0; | |
6d52618b | 565 | int to_uppcase = 0; |
cf29ffbe | 566 | int change_case = 0; |
1618c590 | 567 | int format_char; |
28f540f4 | 568 | |
d64b6ad0 UD |
569 | #if DO_MULTIBYTE && !defined COMPILE_WIDE |
570 | switch (*f) | |
28f540f4 | 571 | { |
d64b6ad0 | 572 | case L_('%'): |
ec4b0518 UD |
573 | break; |
574 | ||
d64b6ad0 UD |
575 | case L_('\a'): case L_('\b'): case L_('\t'): case L_('\n'): |
576 | case L_('\v'): case L_('\f'): case L_('\r'): | |
577 | case L_(' '): case L_('!'): case L_('"'): case L_('#'): case L_('&'): | |
578 | case L_('\''): case L_('('): case L_(')'): case L_('*'): case L_('+'): | |
579 | case L_(','): case L_('-'): case L_('.'): case L_('/'): case L_('0'): | |
580 | case L_('1'): case L_('2'): case L_('3'): case L_('4'): case L_('5'): | |
581 | case L_('6'): case L_('7'): case L_('8'): case L_('9'): case L_(':'): | |
582 | case L_(';'): case L_('<'): case L_('='): case L_('>'): case L_('?'): | |
583 | case L_('A'): case L_('B'): case L_('C'): case L_('D'): case L_('E'): | |
584 | case L_('F'): case L_('G'): case L_('H'): case L_('I'): case L_('J'): | |
585 | case L_('K'): case L_('L'): case L_('M'): case L_('N'): case L_('O'): | |
586 | case L_('P'): case L_('Q'): case L_('R'): case L_('S'): case L_('T'): | |
587 | case L_('U'): case L_('V'): case L_('W'): case L_('X'): case L_('Y'): | |
588 | case L_('Z'): case L_('['): case L_('\\'): case L_(']'): case L_('^'): | |
589 | case L_('_'): case L_('a'): case L_('b'): case L_('c'): case L_('d'): | |
590 | case L_('e'): case L_('f'): case L_('g'): case L_('h'): case L_('i'): | |
591 | case L_('j'): case L_('k'): case L_('l'): case L_('m'): case L_('n'): | |
592 | case L_('o'): case L_('p'): case L_('q'): case L_('r'): case L_('s'): | |
593 | case L_('t'): case L_('u'): case L_('v'): case L_('w'): case L_('x'): | |
594 | case L_('y'): case L_('z'): case L_('{'): case L_('|'): case L_('}'): | |
595 | case L_('~'): | |
ec4b0518 UD |
596 | /* The C Standard requires these 98 characters (plus '%') to |
597 | be in the basic execution character set. None of these | |
598 | characters can start a multibyte sequence, so they need | |
599 | not be analyzed further. */ | |
600 | add (1, *p = *f); | |
601 | continue; | |
602 | ||
603 | default: | |
604 | /* Copy this multibyte sequence until we reach its end, find | |
605 | an error, or come back to the initial shift state. */ | |
606 | { | |
607 | mbstate_t mbstate = mbstate_zero; | |
608 | size_t len = 0; | |
609 | ||
610 | do | |
611 | { | |
612 | size_t bytes = mbrlen (f + len, (size_t) -1, &mbstate); | |
613 | ||
614 | if (bytes == 0) | |
615 | break; | |
616 | ||
6796bc80 UD |
617 | if (bytes == (size_t) -2) |
618 | { | |
619 | len += strlen (f + len); | |
620 | break; | |
621 | } | |
6e4c40ba | 622 | |
6796bc80 | 623 | if (bytes == (size_t) -1) |
ec4b0518 UD |
624 | { |
625 | len++; | |
626 | break; | |
627 | } | |
628 | ||
629 | len += bytes; | |
630 | } | |
631 | while (! mbsinit (&mbstate)); | |
632 | ||
633 | cpy (len, f); | |
6796bc80 | 634 | f += len - 1; |
ec4b0518 UD |
635 | continue; |
636 | } | |
28f540f4 RM |
637 | } |
638 | ||
ec4b0518 UD |
639 | #else /* ! DO_MULTIBYTE */ |
640 | ||
d64b6ad0 UD |
641 | /* Either multibyte encodings are not supported, they are |
642 | safe for formats, so any non-'%' byte can be copied through, | |
643 | or this is the wide character version. */ | |
644 | if (*f != L_('%')) | |
28f540f4 | 645 | { |
2de99474 | 646 | add (1, *p = *f); |
28f540f4 RM |
647 | continue; |
648 | } | |
649 | ||
ec4b0518 UD |
650 | #endif /* ! DO_MULTIBYTE */ |
651 | ||
7e3be507 | 652 | /* Check for flags that can modify a format. */ |
f8b87ef0 | 653 | while (1) |
b7459e56 | 654 | { |
6d52618b | 655 | switch (*++f) |
f8b87ef0 | 656 | { |
7e3be507 | 657 | /* This influences the number formats. */ |
d64b6ad0 UD |
658 | case L_('_'): |
659 | case L_('-'): | |
660 | case L_('0'): | |
6d52618b UD |
661 | pad = *f; |
662 | continue; | |
663 | ||
7e3be507 | 664 | /* This changes textual output. */ |
d64b6ad0 | 665 | case L_('^'): |
6d52618b UD |
666 | to_uppcase = 1; |
667 | continue; | |
d64b6ad0 | 668 | case L_('#'): |
cf29ffbe UD |
669 | change_case = 1; |
670 | continue; | |
f8b87ef0 UD |
671 | |
672 | default: | |
f8b87ef0 UD |
673 | break; |
674 | } | |
b7459e56 | 675 | break; |
f8b87ef0 | 676 | } |
ec4b0518 | 677 | |
f8b87ef0 | 678 | /* As a GNU extension we allow to specify the field width. */ |
7e3be507 | 679 | if (ISDIGIT (*f)) |
f8b87ef0 UD |
680 | { |
681 | width = 0; | |
682 | do | |
683 | { | |
684 | width *= 10; | |
d64b6ad0 | 685 | width += *f - L_('0'); |
7e3be507 | 686 | ++f; |
f8b87ef0 | 687 | } |
7e3be507 | 688 | while (ISDIGIT (*f)); |
b7459e56 RM |
689 | } |
690 | ||
f0f1bf85 UD |
691 | /* Check for modifiers. */ |
692 | switch (*f) | |
693 | { | |
d64b6ad0 UD |
694 | case L_('E'): |
695 | case L_('O'): | |
ec4b0518 | 696 | modifier = *f++; |
f0f1bf85 | 697 | break; |
ec4b0518 | 698 | |
f0f1bf85 | 699 | default: |
ec4b0518 | 700 | modifier = 0; |
f0f1bf85 UD |
701 | break; |
702 | } | |
703 | ||
b7459e56 | 704 | /* Now do the specified format. */ |
1618c590 UD |
705 | format_char = *f; |
706 | switch (format_char) | |
28f540f4 | 707 | { |
f0f1bf85 | 708 | #define DO_NUMBER(d, v) \ |
cf29ffbe UD |
709 | digits = width == -1 ? d : width; \ |
710 | number_value = v; goto do_number | |
f0f1bf85 | 711 | #define DO_NUMBER_SPACEPAD(d, v) \ |
cf29ffbe UD |
712 | digits = width == -1 ? d : width; \ |
713 | number_value = v; goto do_number_spacepad | |
f0f1bf85 | 714 | |
d64b6ad0 | 715 | case L_('%'): |
ec4b0518 | 716 | if (modifier != 0) |
f0f1bf85 | 717 | goto bad_format; |
2de99474 | 718 | add (1, *p = *f); |
28f540f4 RM |
719 | break; |
720 | ||
d64b6ad0 | 721 | case L_('a'): |
ec4b0518 | 722 | if (modifier != 0) |
f0f1bf85 | 723 | goto bad_format; |
cf29ffbe UD |
724 | if (change_case) |
725 | { | |
726 | to_uppcase = 1; | |
727 | to_lowcase = 0; | |
728 | } | |
1618c590 | 729 | #if defined _NL_CURRENT || !HAVE_STRFTIME |
2de99474 | 730 | cpy (aw_len, a_wkday); |
28f540f4 | 731 | break; |
1618c590 UD |
732 | #else |
733 | goto underlying_strftime; | |
734 | #endif | |
28f540f4 RM |
735 | |
736 | case 'A': | |
ec4b0518 | 737 | if (modifier != 0) |
f0f1bf85 | 738 | goto bad_format; |
cf29ffbe UD |
739 | if (change_case) |
740 | { | |
741 | to_uppcase = 1; | |
742 | to_lowcase = 0; | |
743 | } | |
1618c590 | 744 | #if defined _NL_CURRENT || !HAVE_STRFTIME |
d64b6ad0 | 745 | cpy (STRLEN (f_wkday), f_wkday); |
28f540f4 | 746 | break; |
1618c590 UD |
747 | #else |
748 | goto underlying_strftime; | |
749 | #endif | |
28f540f4 | 750 | |
d64b6ad0 UD |
751 | case L_('b'): |
752 | case L_('h'): /* POSIX.2 extension. */ | |
ec4b0518 | 753 | if (modifier != 0) |
f0f1bf85 | 754 | goto bad_format; |
1618c590 | 755 | #if defined _NL_CURRENT || !HAVE_STRFTIME |
2de99474 | 756 | cpy (am_len, a_month); |
28f540f4 | 757 | break; |
1618c590 UD |
758 | #else |
759 | goto underlying_strftime; | |
760 | #endif | |
28f540f4 | 761 | |
d64b6ad0 | 762 | case L_('B'): |
ec4b0518 | 763 | if (modifier != 0) |
f0f1bf85 | 764 | goto bad_format; |
cf29ffbe UD |
765 | if (change_case) |
766 | { | |
767 | to_uppcase = 1; | |
768 | to_lowcase = 0; | |
769 | } | |
1618c590 | 770 | #if defined _NL_CURRENT || !HAVE_STRFTIME |
d64b6ad0 | 771 | cpy (STRLEN (f_month), f_month); |
28f540f4 | 772 | break; |
1618c590 UD |
773 | #else |
774 | goto underlying_strftime; | |
775 | #endif | |
28f540f4 | 776 | |
d64b6ad0 UD |
777 | case L_('c'): |
778 | if (modifier == L_('O')) | |
f0f1bf85 | 779 | goto bad_format; |
0793d348 | 780 | #ifdef _NL_CURRENT |
ec4b0518 | 781 | if (! (modifier == 'E' |
d64b6ad0 UD |
782 | && (*(subfmt = (CHAR_T *) _NL_CURRENT (LC_TIME, |
783 | NLW(ERA_D_T_FMT))) | |
784 | != '\0'))) | |
785 | subfmt = (CHAR_T *) _NL_CURRENT (LC_TIME, NLW(D_T_FMT)); | |
0793d348 | 786 | #else |
1618c590 UD |
787 | # if HAVE_STRFTIME |
788 | goto underlying_strftime; | |
789 | # else | |
d64b6ad0 | 790 | subfmt = L_("%a %b %e %H:%M:%S %Y"); |
1618c590 | 791 | # endif |
0793d348 | 792 | #endif |
f0f1bf85 | 793 | |
28f540f4 RM |
794 | subformat: |
795 | { | |
d64b6ad0 | 796 | CHAR_T *old_start = p; |
e07a51b5 | 797 | size_t len = my_strftime (NULL, (size_t) -1, subfmt, tp); |
1618c590 | 798 | add (len, my_strftime (p, maxsize - i, subfmt, tp)); |
6d52618b UD |
799 | |
800 | if (to_uppcase) | |
801 | while (old_start < p) | |
802 | { | |
d64b6ad0 | 803 | *old_start = TOUPPER ((UCHAR_T) *old_start); |
6d52618b UD |
804 | ++old_start; |
805 | } | |
28f540f4 RM |
806 | } |
807 | break; | |
808 | ||
1618c590 UD |
809 | #if HAVE_STRFTIME && ! (defined _NL_CURRENT && HAVE_STRUCT_ERA_ENTRY) |
810 | underlying_strftime: | |
811 | { | |
812 | /* The relevant information is available only via the | |
813 | underlying strftime implementation, so use that. */ | |
814 | char ufmt[4]; | |
815 | char *u = ufmt; | |
816 | char ubuf[1024]; /* enough for any single format in practice */ | |
817 | size_t len; | |
818 | *u++ = '%'; | |
819 | if (modifier != 0) | |
820 | *u++ = modifier; | |
821 | *u++ = format_char; | |
822 | *u = '\0'; | |
823 | len = strftime (ubuf, sizeof ubuf, ufmt, tp); | |
3465c0ce | 824 | if (len == 0 && ubuf[0] != '\0') |
1618c590 UD |
825 | return 0; |
826 | cpy (len, ubuf); | |
827 | } | |
828 | break; | |
829 | #endif | |
830 | ||
d64b6ad0 UD |
831 | case L_('C'): /* POSIX.2 extension. */ |
832 | if (modifier == L_('O')) | |
f0f1bf85 | 833 | goto bad_format; |
d64b6ad0 | 834 | if (modifier == L_('E')) |
d68171ed | 835 | { |
1618c590 | 836 | #if HAVE_STRUCT_ERA_ENTRY |
d68171ed UD |
837 | struct era_entry *era = _nl_get_era_entry (tp); |
838 | if (era) | |
839 | { | |
d64b6ad0 | 840 | # ifdef COMPILE_WIDE |
4b10dd6c UD |
841 | /* The wide name is after the single byte name and |
842 | format. */ | |
843 | char *tcp = strchr (era->name_fmt, '\0') + 1; | |
844 | wchar_t *ws = (wchar_t *) (strchr (tcp, '\0') + 1); | |
845 | size_t len = wcslen (ws); | |
d64b6ad0 UD |
846 | cpy (len, ws); |
847 | # else | |
d68171ed UD |
848 | size_t len = strlen (era->name_fmt); |
849 | cpy (len, era->name_fmt); | |
d64b6ad0 | 850 | # endif |
d68171ed UD |
851 | break; |
852 | } | |
1618c590 UD |
853 | #else |
854 | # if HAVE_STRFTIME | |
855 | goto underlying_strftime; | |
856 | # endif | |
f0f1bf85 | 857 | #endif |
1618c590 UD |
858 | } |
859 | ||
ec4b0518 UD |
860 | { |
861 | int year = tp->tm_year + TM_YEAR_BASE; | |
862 | DO_NUMBER (1, year / 100 - (year % 100 < 0)); | |
863 | } | |
28f540f4 | 864 | |
d64b6ad0 UD |
865 | case L_('x'): |
866 | if (modifier == L_('O')) | |
f0f1bf85 | 867 | goto bad_format; |
0793d348 | 868 | #ifdef _NL_CURRENT |
d64b6ad0 UD |
869 | if (! (modifier == L_('E') |
870 | && (*(subfmt = (CHAR_T *)_NL_CURRENT (LC_TIME, | |
871 | NLW(ERA_D_FMT))) | |
872 | != L_('\0')))) | |
873 | subfmt = (CHAR_T *) _NL_CURRENT (LC_TIME, NLW(D_FMT)); | |
0793d348 | 874 | goto subformat; |
1618c590 UD |
875 | #else |
876 | # if HAVE_STRFTIME | |
877 | goto underlying_strftime; | |
878 | # else | |
0793d348 | 879 | /* Fall through. */ |
1618c590 UD |
880 | # endif |
881 | #endif | |
d64b6ad0 | 882 | case L_('D'): /* POSIX.2 extension. */ |
ec4b0518 UD |
883 | if (modifier != 0) |
884 | goto bad_format; | |
d64b6ad0 | 885 | subfmt = L_("%m/%d/%y"); |
28f540f4 RM |
886 | goto subformat; |
887 | ||
d64b6ad0 UD |
888 | case L_('d'): |
889 | if (modifier == L_('E')) | |
f0f1bf85 UD |
890 | goto bad_format; |
891 | ||
b7459e56 | 892 | DO_NUMBER (2, tp->tm_mday); |
28f540f4 | 893 | |
d64b6ad0 UD |
894 | case L_('e'): /* POSIX.2 extension. */ |
895 | if (modifier == L_('E')) | |
f0f1bf85 UD |
896 | goto bad_format; |
897 | ||
2064087b | 898 | DO_NUMBER_SPACEPAD (2, tp->tm_mday); |
b7459e56 | 899 | |
f0f1bf85 | 900 | /* All numeric formats set DIGITS and NUMBER_VALUE and then |
b7459e56 RM |
901 | jump to one of these two labels. */ |
902 | ||
2064087b | 903 | do_number_spacepad: |
f8b87ef0 | 904 | /* Force `_' flag unless overwritten by `0' flag. */ |
d64b6ad0 UD |
905 | if (pad != L_('0')) |
906 | pad = L_('_'); | |
b7459e56 RM |
907 | |
908 | do_number: | |
f0f1bf85 UD |
909 | /* Format the number according to the MODIFIER flag. */ |
910 | ||
d64b6ad0 | 911 | if (modifier == L_('O') && 0 <= number_value) |
f0f1bf85 | 912 | { |
1618c590 | 913 | #ifdef _NL_CURRENT |
c4029823 UD |
914 | /* Get the locale specific alternate representation of |
915 | the number NUMBER_VALUE. If none exist NULL is returned. */ | |
d64b6ad0 | 916 | # ifdef COMPILE_WIDE |
4b10dd6c | 917 | const wchar_t *cp = _nl_get_walt_digit (number_value); |
d64b6ad0 | 918 | # else |
c4029823 | 919 | const char *cp = _nl_get_alt_digit (number_value); |
d64b6ad0 | 920 | # endif |
ec4b0518 | 921 | |
c4029823 | 922 | if (cp != NULL) |
ec4b0518 | 923 | { |
d64b6ad0 | 924 | size_t digitlen = STRLEN (cp); |
ec4b0518 UD |
925 | if (digitlen != 0) |
926 | { | |
927 | cpy (digitlen, cp); | |
928 | break; | |
929 | } | |
930 | } | |
1618c590 UD |
931 | #else |
932 | # if HAVE_STRFTIME | |
933 | goto underlying_strftime; | |
934 | # endif | |
f0f1bf85 | 935 | #endif |
1618c590 | 936 | } |
b7459e56 | 937 | { |
f0f1bf85 | 938 | unsigned int u = number_value; |
b7459e56 | 939 | |
d64b6ad0 | 940 | bufp = buf + sizeof (buf) / sizeof (buf[0]); |
f0f1bf85 | 941 | negative_number = number_value < 0; |
b7459e56 | 942 | |
f0f1bf85 UD |
943 | if (negative_number) |
944 | u = -u; | |
b7459e56 | 945 | |
f0f1bf85 | 946 | do |
d64b6ad0 | 947 | *--bufp = u % 10 + L_('0'); |
f0f1bf85 UD |
948 | while ((u /= 10) != 0); |
949 | } | |
b7459e56 | 950 | |
f0f1bf85 UD |
951 | do_number_sign_and_padding: |
952 | if (negative_number) | |
d64b6ad0 | 953 | *--bufp = L_('-'); |
f0f1bf85 | 954 | |
d64b6ad0 | 955 | if (pad != L_('-')) |
f0f1bf85 | 956 | { |
d64b6ad0 UD |
957 | int padding = digits - (buf + (sizeof (buf) / sizeof (buf[0])) |
958 | - bufp); | |
f0f1bf85 | 959 | |
d64b6ad0 | 960 | if (pad == L_('_')) |
f0f1bf85 UD |
961 | { |
962 | while (0 < padding--) | |
d64b6ad0 | 963 | *--bufp = L_(' '); |
f0f1bf85 UD |
964 | } |
965 | else | |
966 | { | |
967 | bufp += negative_number; | |
968 | while (0 < padding--) | |
d64b6ad0 | 969 | *--bufp = L_('0'); |
f0f1bf85 | 970 | if (negative_number) |
d64b6ad0 | 971 | *--bufp = L_('-'); |
f0f1bf85 UD |
972 | } |
973 | } | |
974 | ||
d64b6ad0 | 975 | cpy (buf + sizeof (buf) / sizeof (buf[0]) - bufp, bufp); |
f0f1bf85 | 976 | break; |
b7459e56 | 977 | |
d64b6ad0 | 978 | case L_('F'): |
cc3fa755 UD |
979 | if (modifier != 0) |
980 | goto bad_format; | |
d64b6ad0 | 981 | subfmt = L_("%Y-%m-%d"); |
cc3fa755 | 982 | goto subformat; |
28f540f4 | 983 | |
d64b6ad0 UD |
984 | case L_('H'): |
985 | if (modifier == L_('E')) | |
f0f1bf85 UD |
986 | goto bad_format; |
987 | ||
b7459e56 | 988 | DO_NUMBER (2, tp->tm_hour); |
28f540f4 | 989 | |
d64b6ad0 UD |
990 | case L_('I'): |
991 | if (modifier == L_('E')) | |
f0f1bf85 UD |
992 | goto bad_format; |
993 | ||
b7459e56 | 994 | DO_NUMBER (2, hour12); |
28f540f4 | 995 | |
d64b6ad0 UD |
996 | case L_('k'): /* GNU extension. */ |
997 | if (modifier == L_('E')) | |
f0f1bf85 UD |
998 | goto bad_format; |
999 | ||
2064087b | 1000 | DO_NUMBER_SPACEPAD (2, tp->tm_hour); |
28f540f4 | 1001 | |
d64b6ad0 UD |
1002 | case L_('l'): /* GNU extension. */ |
1003 | if (modifier == L_('E')) | |
f0f1bf85 UD |
1004 | goto bad_format; |
1005 | ||
2064087b | 1006 | DO_NUMBER_SPACEPAD (2, hour12); |
28f540f4 | 1007 | |
d64b6ad0 UD |
1008 | case L_('j'): |
1009 | if (modifier == L_('E')) | |
f0f1bf85 UD |
1010 | goto bad_format; |
1011 | ||
b7459e56 | 1012 | DO_NUMBER (3, 1 + tp->tm_yday); |
28f540f4 | 1013 | |
d64b6ad0 UD |
1014 | case L_('M'): |
1015 | if (modifier == L_('E')) | |
f0f1bf85 UD |
1016 | goto bad_format; |
1017 | ||
b7459e56 | 1018 | DO_NUMBER (2, tp->tm_min); |
28f540f4 | 1019 | |
d64b6ad0 UD |
1020 | case L_('m'): |
1021 | if (modifier == L_('E')) | |
f0f1bf85 UD |
1022 | goto bad_format; |
1023 | ||
b7459e56 | 1024 | DO_NUMBER (2, tp->tm_mon + 1); |
28f540f4 | 1025 | |
d64b6ad0 UD |
1026 | case L_('n'): /* POSIX.2 extension. */ |
1027 | add (1, *p = L_('\n')); | |
28f540f4 RM |
1028 | break; |
1029 | ||
d64b6ad0 | 1030 | case L_('P'): |
f8b87ef0 | 1031 | to_lowcase = 1; |
1618c590 | 1032 | #if !defined _NL_CURRENT && HAVE_STRFTIME |
d64b6ad0 | 1033 | format_char = L_('p'); |
1618c590 | 1034 | #endif |
f8b87ef0 UD |
1035 | /* FALLTHROUGH */ |
1036 | ||
d64b6ad0 | 1037 | case L_('p'): |
cf29ffbe UD |
1038 | if (change_case) |
1039 | { | |
1040 | to_uppcase = 0; | |
1041 | to_lowcase = 1; | |
1042 | } | |
1618c590 | 1043 | #if defined _NL_CURRENT || !HAVE_STRFTIME |
2de99474 | 1044 | cpy (ap_len, ampm); |
28f540f4 | 1045 | break; |
1618c590 UD |
1046 | #else |
1047 | goto underlying_strftime; | |
1048 | #endif | |
28f540f4 | 1049 | |
d64b6ad0 UD |
1050 | case L_('R'): /* GNU extension. */ |
1051 | subfmt = L_("%H:%M"); | |
28f540f4 RM |
1052 | goto subformat; |
1053 | ||
d64b6ad0 | 1054 | case L_('r'): /* POSIX.2 extension. */ |
ec4b0518 | 1055 | #ifdef _NL_CURRENT |
d64b6ad0 UD |
1056 | if (*(subfmt = (CHAR_T *) _NL_CURRENT (LC_TIME, |
1057 | NLW(T_FMT_AMPM))) == L_('\0')) | |
ec4b0518 | 1058 | #endif |
d64b6ad0 | 1059 | subfmt = L_("%I:%M:%S %p"); |
28f540f4 RM |
1060 | goto subformat; |
1061 | ||
d64b6ad0 UD |
1062 | case L_('S'): |
1063 | if (modifier == L_('E')) | |
ec4b0518 | 1064 | goto bad_format; |
f0f1bf85 | 1065 | |
b7459e56 | 1066 | DO_NUMBER (2, tp->tm_sec); |
28f540f4 | 1067 | |
d64b6ad0 | 1068 | case L_('s'): /* GNU extension. */ |
f0f1bf85 | 1069 | { |
b33f91e9 UD |
1070 | struct tm ltm; |
1071 | time_t t; | |
1072 | ||
1073 | ltm = *tp; | |
1074 | t = mktime (<m); | |
f0f1bf85 UD |
1075 | |
1076 | /* Generate string value for T using time_t arithmetic; | |
1077 | this works even if sizeof (long) < sizeof (time_t). */ | |
1078 | ||
d64b6ad0 | 1079 | bufp = buf + sizeof (buf) / sizeof (buf[0]); |
f0f1bf85 UD |
1080 | negative_number = t < 0; |
1081 | ||
1082 | do | |
1083 | { | |
1084 | int d = t % 10; | |
1085 | t /= 10; | |
1086 | ||
1087 | if (negative_number) | |
1088 | { | |
1089 | d = -d; | |
1090 | ||
1091 | /* Adjust if division truncates to minus infinity. */ | |
1092 | if (0 < -1 % 10 && d < 0) | |
1093 | { | |
1094 | t++; | |
1095 | d += 10; | |
1096 | } | |
1097 | } | |
1098 | ||
d64b6ad0 | 1099 | *--bufp = d + L_('0'); |
f0f1bf85 UD |
1100 | } |
1101 | while (t != 0); | |
1102 | ||
1103 | digits = 1; | |
1104 | goto do_number_sign_and_padding; | |
2de99474 | 1105 | } |
2de99474 | 1106 | |
d64b6ad0 UD |
1107 | case L_('X'): |
1108 | if (modifier == L_('O')) | |
f0f1bf85 | 1109 | goto bad_format; |
0793d348 | 1110 | #ifdef _NL_CURRENT |
d64b6ad0 UD |
1111 | if (! (modifier == L_('E') |
1112 | && (*(subfmt = (CHAR_T *) _NL_CURRENT (LC_TIME, | |
1113 | NLW(ERA_T_FMT))) | |
1114 | != L_('\0')))) | |
1115 | subfmt = (CHAR_T *) _NL_CURRENT (LC_TIME, NLW(T_FMT)); | |
0793d348 | 1116 | goto subformat; |
1618c590 UD |
1117 | #else |
1118 | # if HAVE_STRFTIME | |
1119 | goto underlying_strftime; | |
1120 | # else | |
0793d348 | 1121 | /* Fall through. */ |
1618c590 UD |
1122 | # endif |
1123 | #endif | |
d64b6ad0 UD |
1124 | case L_('T'): /* POSIX.2 extension. */ |
1125 | subfmt = L_("%H:%M:%S"); | |
28f540f4 RM |
1126 | goto subformat; |
1127 | ||
d64b6ad0 UD |
1128 | case L_('t'): /* POSIX.2 extension. */ |
1129 | add (1, *p = L_('\t')); | |
28f540f4 RM |
1130 | break; |
1131 | ||
d64b6ad0 | 1132 | case L_('u'): /* POSIX.2 extension. */ |
ec4b0518 UD |
1133 | DO_NUMBER (1, (tp->tm_wday - 1 + 7) % 7 + 1); |
1134 | ||
d64b6ad0 UD |
1135 | case L_('U'): |
1136 | if (modifier == L_('E')) | |
f0f1bf85 UD |
1137 | goto bad_format; |
1138 | ||
ec4b0518 | 1139 | DO_NUMBER (2, (tp->tm_yday - tp->tm_wday + 7) / 7); |
28f540f4 | 1140 | |
d64b6ad0 UD |
1141 | case L_('V'): |
1142 | case L_('g'): /* GNU extension. */ | |
1143 | case L_('G'): /* GNU extension. */ | |
1144 | if (modifier == L_('E')) | |
f0f1bf85 | 1145 | goto bad_format; |
ec4b0518 UD |
1146 | { |
1147 | int year = tp->tm_year + TM_YEAR_BASE; | |
1148 | int days = iso_week_days (tp->tm_yday, tp->tm_wday); | |
1149 | ||
1150 | if (days < 0) | |
1151 | { | |
1152 | /* This ISO week belongs to the previous year. */ | |
1153 | year--; | |
1154 | days = iso_week_days (tp->tm_yday + (365 + __isleap (year)), | |
1155 | tp->tm_wday); | |
1156 | } | |
1157 | else | |
1158 | { | |
1159 | int d = iso_week_days (tp->tm_yday - (365 + __isleap (year)), | |
1160 | tp->tm_wday); | |
1161 | if (0 <= d) | |
1162 | { | |
1163 | /* This ISO week belongs to the next year. */ | |
1164 | year++; | |
1165 | days = d; | |
1166 | } | |
1167 | } | |
1168 | ||
1169 | switch (*f) | |
1170 | { | |
d64b6ad0 | 1171 | case L_('g'): |
ec4b0518 UD |
1172 | DO_NUMBER (2, (year % 100 + 100) % 100); |
1173 | ||
d64b6ad0 | 1174 | case L_('G'): |
ec4b0518 | 1175 | DO_NUMBER (1, year); |
f0f1bf85 | 1176 | |
ec4b0518 UD |
1177 | default: |
1178 | DO_NUMBER (2, days / 7 + 1); | |
1179 | } | |
1180 | } | |
339841f9 | 1181 | |
d64b6ad0 UD |
1182 | case L_('W'): |
1183 | if (modifier == L_('E')) | |
f0f1bf85 UD |
1184 | goto bad_format; |
1185 | ||
ec4b0518 | 1186 | DO_NUMBER (2, (tp->tm_yday - (tp->tm_wday - 1 + 7) % 7 + 7) / 7); |
28f540f4 | 1187 | |
d64b6ad0 UD |
1188 | case L_('w'): |
1189 | if (modifier == L_('E')) | |
f0f1bf85 UD |
1190 | goto bad_format; |
1191 | ||
ec4b0518 | 1192 | DO_NUMBER (1, tp->tm_wday); |
28f540f4 | 1193 | |
d64b6ad0 | 1194 | case L_('Y'): |
d68171ed UD |
1195 | if (modifier == 'E') |
1196 | { | |
1618c590 | 1197 | #if HAVE_STRUCT_ERA_ENTRY |
d68171ed UD |
1198 | struct era_entry *era = _nl_get_era_entry (tp); |
1199 | if (era) | |
1200 | { | |
d64b6ad0 | 1201 | # ifdef COMPILE_WIDE |
4b10dd6c UD |
1202 | /* The wide name is after the single byte name and |
1203 | format. */ | |
1204 | char *tcp = strchr (era->name_fmt, '\0') + 1; | |
d64b6ad0 | 1205 | size_t len; |
4b10dd6c UD |
1206 | subfmt = (wchar_t *) (strchr (tcp, '\0') + 1); |
1207 | subfmt = wcschr (subfmt, L'\0') + 1; | |
d64b6ad0 | 1208 | # else |
d68171ed | 1209 | subfmt = strchr (era->name_fmt, '\0') + 1; |
d64b6ad0 | 1210 | # endif |
d68171ed UD |
1211 | goto subformat; |
1212 | } | |
1618c590 UD |
1213 | #else |
1214 | # if HAVE_STRFTIME | |
1215 | goto underlying_strftime; | |
1216 | # endif | |
f0f1bf85 | 1217 | #endif |
1618c590 | 1218 | } |
d64b6ad0 | 1219 | if (modifier == L_('O')) |
ec4b0518 UD |
1220 | goto bad_format; |
1221 | else | |
1222 | DO_NUMBER (1, tp->tm_year + TM_YEAR_BASE); | |
28f540f4 | 1223 | |
d64b6ad0 UD |
1224 | case L_('y'): |
1225 | if (modifier == L_('E')) | |
d68171ed | 1226 | { |
1618c590 | 1227 | #if HAVE_STRUCT_ERA_ENTRY |
d68171ed UD |
1228 | struct era_entry *era = _nl_get_era_entry (tp); |
1229 | if (era) | |
1230 | { | |
1231 | int delta = tp->tm_year - era->start_date[0]; | |
1232 | DO_NUMBER (1, (era->offset | |
1233 | + (era->direction == '-' ? -delta : delta))); | |
1234 | } | |
1618c590 UD |
1235 | #else |
1236 | # if HAVE_STRFTIME | |
1237 | goto underlying_strftime; | |
1238 | # endif | |
f0f1bf85 | 1239 | #endif |
1618c590 | 1240 | } |
ec4b0518 | 1241 | DO_NUMBER (2, (tp->tm_year % 100 + 100) % 100); |
28f540f4 | 1242 | |
d64b6ad0 | 1243 | case L_('Z'): |
cf29ffbe UD |
1244 | if (change_case) |
1245 | { | |
1246 | to_uppcase = 0; | |
1247 | to_lowcase = 1; | |
1248 | } | |
81e0cb2d UD |
1249 | |
1250 | #if HAVE_TZNAME | |
1251 | /* The tzset() call might have changed the value. */ | |
1252 | if (!(zone && *zone) && tp->tm_isdst >= 0) | |
1253 | zone = tzname[tp->tm_isdst]; | |
1254 | #endif | |
1255 | if (! zone) | |
1256 | zone = ""; /* POSIX.2 requires the empty string here. */ | |
1257 | ||
d64b6ad0 UD |
1258 | #ifdef COMPILE_WIDE |
1259 | { | |
1260 | /* The zone string is always given in multibyte form. We have | |
1261 | to transform it first. */ | |
1262 | wchar_t *wczone; | |
1263 | size_t len; | |
1264 | widen (zone, wczone, len); | |
1265 | cpy (len, wczone); | |
1266 | } | |
1267 | #else | |
81e0cb2d | 1268 | cpy (strlen (zone), zone); |
d64b6ad0 | 1269 | #endif |
28f540f4 RM |
1270 | break; |
1271 | ||
d64b6ad0 | 1272 | case L_('z'): /* GNU extension. */ |
f0f1bf85 UD |
1273 | if (tp->tm_isdst < 0) |
1274 | break; | |
1275 | ||
2de99474 | 1276 | { |
2de99474 | 1277 | int diff; |
f0f1bf85 UD |
1278 | #if HAVE_TM_GMTOFF |
1279 | diff = tp->tm_gmtoff; | |
1280 | #else | |
e07a51b5 UD |
1281 | if (ut) |
1282 | diff = 0; | |
1283 | else | |
1284 | { | |
1285 | struct tm gtm; | |
1286 | struct tm ltm; | |
1287 | time_t lt; | |
b33f91e9 | 1288 | |
e07a51b5 UD |
1289 | ltm = *tp; |
1290 | lt = mktime (<m); | |
2de99474 | 1291 | |
e07a51b5 UD |
1292 | if (lt == (time_t) -1) |
1293 | { | |
1294 | /* mktime returns -1 for errors, but -1 is also a | |
1295 | valid time_t value. Check whether an error really | |
1296 | occurred. */ | |
1297 | struct tm tm; | |
1298 | ||
05f732b3 | 1299 | if (! my_strftime_localtime_r (<, &tm) |
e07a51b5 UD |
1300 | || ((ltm.tm_sec ^ tm.tm_sec) |
1301 | | (ltm.tm_min ^ tm.tm_min) | |
1302 | | (ltm.tm_hour ^ tm.tm_hour) | |
1303 | | (ltm.tm_mday ^ tm.tm_mday) | |
1304 | | (ltm.tm_mon ^ tm.tm_mon) | |
1305 | | (ltm.tm_year ^ tm.tm_year))) | |
1306 | break; | |
1307 | } | |
dcf0671d | 1308 | |
05f732b3 | 1309 | if (! my_strftime_gmtime_r (<, >m)) |
e07a51b5 | 1310 | break; |
dcf0671d | 1311 | |
e07a51b5 UD |
1312 | diff = tm_diff (<m, >m); |
1313 | } | |
f0f1bf85 | 1314 | #endif |
2de99474 UD |
1315 | |
1316 | if (diff < 0) | |
1317 | { | |
d64b6ad0 | 1318 | add (1, *p = L_('-')); |
2de99474 UD |
1319 | diff = -diff; |
1320 | } | |
1321 | else | |
d64b6ad0 | 1322 | add (1, *p = L_('+')); |
2de99474 | 1323 | |
f0f1bf85 UD |
1324 | diff /= 60; |
1325 | DO_NUMBER (4, (diff / 60) * 100 + diff % 60); | |
2de99474 UD |
1326 | } |
1327 | ||
d64b6ad0 | 1328 | case L_('\0'): /* GNU extension: % at end of format. */ |
d68171ed UD |
1329 | --f; |
1330 | /* Fall through. */ | |
28f540f4 | 1331 | default: |
ec4b0518 UD |
1332 | /* Unknown format; output the format, including the '%', |
1333 | since this is most likely the right thing to do if a | |
1334 | multibyte string has been misparsed. */ | |
f0f1bf85 | 1335 | bad_format: |
ec4b0518 UD |
1336 | { |
1337 | int flen; | |
d64b6ad0 | 1338 | for (flen = 1; f[1 - flen] != L_('%'); flen++) |
ec4b0518 UD |
1339 | continue; |
1340 | cpy (flen, &f[1 - flen]); | |
1341 | } | |
28f540f4 RM |
1342 | break; |
1343 | } | |
1344 | } | |
1345 | ||
dfd2464b | 1346 | if (p && maxsize != 0) |
d64b6ad0 | 1347 | *p = L_('\0'); |
28f540f4 RM |
1348 | return i; |
1349 | } | |
e07a51b5 UD |
1350 | |
1351 | ||
1352 | #ifdef emacs | |
1353 | /* For Emacs we have a separate interface which corresponds to the normal | |
1354 | strftime function and does not have the extra information whether the | |
1355 | TP arguments comes from a `gmtime' call or not. */ | |
1356 | size_t | |
1357 | emacs_strftime (s, maxsize, format, tp) | |
1358 | char *s; | |
1359 | size_t maxsize; | |
1360 | const char *format; | |
1361 | const struct tm *tp; | |
1362 | { | |
1363 | return my_strftime (s, maxsize, format, tp, 0); | |
1364 | } | |
1365 | #endif |