-/* Copyright (C) 1991,92,93,94,95,96,97,98,99 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2014 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version.
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Library General Public License for more details.
+ Lesser General Public License for more details.
- You should have received a copy of the GNU Library General Public
- License along with the GNU C Library; see the file COPYING.LIB. If not,
- write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
+#include <time.h>
+#include <locale/localeinfo.h>
-#ifdef _LIBC
-# define HAVE_LIMITS_H 1
-# define HAVE_MBLEN 1
-# define HAVE_MBRLEN 1
-# define HAVE_STRUCT_ERA_ENTRY 1
-# define HAVE_TM_GMTOFF 1
-# define HAVE_TM_ZONE 1
-# define HAVE_TZNAME 1
-# define HAVE_TZSET 1
-# define MULTIBYTE_IS_FORMAT_SAFE 1
-# define STDC_HEADERS 1
-# include "../locale/localeinfo.h"
-#endif
-#if defined emacs && !defined HAVE_BCOPY
-# define HAVE_MEMCPY 1
-#endif
-
-#include <ctype.h>
-#include <sys/types.h> /* Some systems define `time_t' here. */
-
-#ifdef TIME_WITH_SYS_TIME
-# include <sys/time.h>
-# include <time.h>
-#else
-# ifdef HAVE_SYS_TIME_H
-# include <sys/time.h>
-# else
-# include <time.h>
-# endif
-#endif
-#if HAVE_TZNAME
-extern char *tzname[];
-#endif
-
-/* Do multibyte processing if multibytes are supported, unless
- multibyte sequences are safe in formats. Multibyte sequences are
- safe if they cannot contain byte sequences that look like format
- conversion specifications. The GNU C Library uses UTF8 multibyte
- encoding, which is safe for formats, but strftime.c can be used
- with other C libraries that use unsafe encodings. */
-#define DO_MULTIBYTE (HAVE_MBLEN && ! MULTIBYTE_IS_FORMAT_SAFE)
-
-#if DO_MULTIBYTE
-# if HAVE_MBRLEN
-# include <wchar.h>
-# else
- /* Simulate mbrlen with mblen as best we can. */
-# define mbstate_t int
-# define mbrlen(s, n, ps) mblen (s, n)
-# define mbsinit(ps) (*(ps) == 0)
-# endif
- static const mbstate_t mbstate_zero;
-#endif
-
-#if HAVE_LIMITS_H
-# include <limits.h>
-#endif
-
-#if STDC_HEADERS
-# include <stddef.h>
-# include <stdlib.h>
-# include <string.h>
-#endif
-
-#ifdef COMPILE_WIDE
-# define CHAR_T wchar_t
-# define UCHAR_T unsigned int
-# define L_(Str) L##Str
-# define NLW(Sym) _NL_W##Sym
-
-# define MEMCPY(d, s, n) wmemcpy (d, s, n)
-# define STRLEN(s) wcslen (s)
-
-#else
-# define CHAR_T char
-# define UCHAR_T unsigned char
-# define L_(Str) Str
-# define NLW(Sym) Sym
-
-# if !defined STDC_HEADERS && !defined HAVE_MEMCPY
-# define MEMCPY(d, s, n) bcopy ((s), (d), (n))
-# else
-# define MEMCPY(d, s, n) memcpy ((d), (s), (n))
-# endif
-# define STRLEN(s) strlen (s)
-
-# ifdef _LIBC
-# define MEMPCPY(d, s, n) __mempcpy (d, s, n)
-# else
-# ifndef HAVE_MEMPCPY
-# define MEMPCPY(d, s, n) ((void *) ((char *) memcpy (d, s, n) + (n)))
-# endif
-# endif
-#endif
-
-#ifndef __P
-# if defined __GNUC__ || (defined __STDC__ && __STDC__)
-# define __P(args) args
-# else
-# define __P(args) ()
-# endif /* GCC. */
-#endif /* Not __P. */
-
-#ifndef PTR
-# ifdef __STDC__
-# define PTR void *
-# else
-# define PTR char *
-# endif
-#endif
-
-#ifndef CHAR_BIT
-# define CHAR_BIT 8
-#endif
-
-#ifndef NULL
-# define NULL 0
-#endif
-
-#define TYPE_SIGNED(t) ((t) -1 < 0)
-
-/* Bound on length of the string representing an integer value of type t.
- Subtract one for the sign bit if t is signed;
- 302 / 1000 is log10 (2) rounded up;
- add one for integer division truncation;
- add one more for a minus sign if t is signed. */
-#define INT_STRLEN_BOUND(t) \
- ((sizeof (t) * CHAR_BIT - TYPE_SIGNED (t)) * 302 / 1000 + 1 + TYPE_SIGNED (t))
-
-#define TM_YEAR_BASE 1900
-
-#ifndef __isleap
-/* Nonzero if YEAR is a leap year (every 4 years,
- except every 100th isn't, and every 400th is). */
-# define __isleap(year) \
- ((year) % 4 == 0 && ((year) % 100 != 0 || (year) % 400 == 0))
-#endif
-
-
-#ifdef _LIBC
-# define my_strftime_gmtime_r __gmtime_r
-# define my_strftime_localtime_r __localtime_r
-# define tzname __tzname
-# define tzset __tzset
-#else
-
-/* If we're a strftime substitute in a GNU program, then prefer gmtime
- to gmtime_r, since many gmtime_r implementations are buggy.
- Similarly for localtime_r. */
-
-# if ! HAVE_TM_GMTOFF
-static struct tm *my_strftime_gmtime_r __P ((const time_t *, struct tm *));
-static struct tm *
-my_strftime_gmtime_r (t, tp)
- const time_t *t;
- struct tm *tp;
-{
- struct tm *l = gmtime (t);
- if (! l)
- return 0;
- *tp = *l;
- return tp;
-}
-# endif /* ! HAVE_TM_GMTOFF */
-
-static struct tm *my_strftime_localtime_r __P ((const time_t *, struct tm *));
-static struct tm *
-my_strftime_localtime_r (t, tp)
- const time_t *t;
- struct tm *tp;
-{
- struct tm *l = localtime (t);
- if (! l)
- return 0;
- *tp = *l;
- return tp;
-}
-#endif /* ! defined _LIBC */
-
-
-#if !defined memset && !defined HAVE_MEMSET && !defined _LIBC
-/* Some systems lack the `memset' function and we don't want to
- introduce additional dependencies. */
-/* The SGI compiler reportedly barfs on the trailing null
- if we use a string constant as the initializer. 28 June 1997, rms. */
-static const CHAR_T spaces[16] = /* " " */
-{
- L_(' '),L_(' '),L_(' '),L_(' '),L_(' '),L_(' '),L_(' '),L_(' '),
- L_(' '),L_(' '),L_(' '),L_(' '),L_(' '),L_(' '),L_(' '),L_(' ')
-};
-static const CHAR_T zeroes[16] = /* "0000000000000000" */
-{
- L_('0'),L_('0'),L_('0'),L_('0'),L_('0'),L_('0'),L_('0'),L_('0'),
- L_('0'),L_('0'),L_('0'),L_('0'),L_('0'),L_('0'),L_('0'),L_('0')
-};
-
-# define memset_space(P, Len) \
- do { \
- int _len = (Len); \
- \
- do \
- { \
- int _this = _len > 16 ? 16 : _len; \
- (P) = MEMPCPY ((P), spaces, _this * sizeof (CHAR_T)); \
- _len -= _this; \
- } \
- while (_len > 0); \
- } while (0)
-
-# define memset_zero(P, Len) \
- do { \
- int _len = (Len); \
- \
- do \
- { \
- int _this = _len > 16 ? 16 : _len; \
- (P) = MEMPCPY ((P), zeroes, _this * sizeof (CHAR_T)); \
- _len -= _this; \
- } \
- while (_len > 0); \
- } while (0)
-#else
-# ifdef COMPILE_WIDE
-# define memset_space(P, Len) (wmemset ((P), L' ', (Len)), (P) += (Len))
-# define memset_zero(P, Len) (wmemset ((P), L'0', (Len)), (P) += (Len))
-# else
-# define memset_space(P, Len) (memset ((P), ' ', (Len)), (P) += (Len))
-# define memset_zero(P, Len) (memset ((P), '0', (Len)), (P) += (Len))
-# endif
-#endif
-
-#define add(n, f) \
- do \
- { \
- int _n = (n); \
- int _delta = width - _n; \
- int _incr = _n + (_delta > 0 ? _delta : 0); \
- if (i + _incr >= maxsize) \
- return 0; \
- if (p) \
- { \
- if (_delta > 0) \
- { \
- if (pad == L_('0')) \
- memset_zero (p, _delta); \
- else \
- memset_space (p, _delta); \
- } \
- f; \
- p += _n; \
- } \
- i += _incr; \
- } while (0)
-
-#define cpy(n, s) \
- add ((n), \
- if (to_lowcase) \
- memcpy_lowcase (p, (s), _n); \
- else if (to_uppcase) \
- memcpy_uppcase (p, (s), _n); \
- else \
- MEMCPY ((PTR) p, (PTR) (s), _n))
-
-#ifdef COMPILE_WIDE
-# define widen(os, ws, l) \
- { \
- mbstate_t __st; \
- const char *__s = os; \
- memset (&__st, '\0', sizeof (__st)); \
- l = __mbsrtowcs (NULL, &__s, 0, &__st); \
- ws = alloca ((l + 1) * sizeof (wchar_t)); \
- (void) __mbsrtowcs (ws, &__s, l, &__st); \
- }
-#endif
-
-
-#ifdef COMPILE_WIDE
-# define TOUPPER(Ch) towupper (Ch)
-# define TOLOWER(Ch) towlower (Ch)
-#else
-# ifdef _LIBC
-# define TOUPPER(Ch) toupper (Ch)
-# define TOLOWER(Ch) tolower (Ch)
-# else
-# define TOUPPER(Ch) (islower (Ch) ? toupper (Ch) : (Ch))
-# define TOLOWER(Ch) (isupper (Ch) ? tolower (Ch) : (Ch))
-# endif
-#endif
-/* We don't use `isdigit' here since the locale dependent
- interpretation is not what we want here. We only need to accept
- the arabic digits in the ASCII range. One day there is perhaps a
- more reliable way to accept other sets of digits. */
-#define ISDIGIT(Ch) ((unsigned int) (Ch) - L_('0') <= 9)
-
-static CHAR_T *memcpy_lowcase __P ((CHAR_T *dest, const CHAR_T *src,
- size_t len));
-
-static CHAR_T *
-memcpy_lowcase (dest, src, len)
- CHAR_T *dest;
- const CHAR_T *src;
- size_t len;
-{
- while (len-- > 0)
- dest[len] = TOLOWER ((UCHAR_T) src[len]);
- return dest;
-}
-
-static CHAR_T *memcpy_uppcase __P ((CHAR_T *dest, const CHAR_T *src,
- size_t len));
-
-static CHAR_T *
-memcpy_uppcase (dest, src, len)
- CHAR_T *dest;
- const CHAR_T *src;
- size_t len;
-{
- while (len-- > 0)
- dest[len] = TOUPPER ((UCHAR_T) src[len]);
- return dest;
-}
-
-
-#if ! HAVE_TM_GMTOFF
-/* Yield the difference between *A and *B,
- measured in seconds, ignoring leap seconds. */
-# define tm_diff ftime_tm_diff
-static int tm_diff __P ((const struct tm *, const struct tm *));
-static int
-tm_diff (a, b)
- const struct tm *a;
- const struct tm *b;
-{
- /* Compute intervening leap days correctly even if year is negative.
- Take care to avoid int overflow in leap day calculations,
- but it's OK to assume that A and B are close to each other. */
- int a4 = (a->tm_year >> 2) + (TM_YEAR_BASE >> 2) - ! (a->tm_year & 3);
- int b4 = (b->tm_year >> 2) + (TM_YEAR_BASE >> 2) - ! (b->tm_year & 3);
- int a100 = a4 / 25 - (a4 % 25 < 0);
- int b100 = b4 / 25 - (b4 % 25 < 0);
- int a400 = a100 >> 2;
- int b400 = b100 >> 2;
- int intervening_leap_days = (a4 - b4) - (a100 - b100) + (a400 - b400);
- int years = a->tm_year - b->tm_year;
- int days = (365 * years + intervening_leap_days
- + (a->tm_yday - b->tm_yday));
- return (60 * (60 * (24 * days + (a->tm_hour - b->tm_hour))
- + (a->tm_min - b->tm_min))
- + (a->tm_sec - b->tm_sec));
-}
-#endif /* ! HAVE_TM_GMTOFF */
-
-
-
-/* The number of days from the first day of the first ISO week of this
- year to the year day YDAY with week day WDAY. ISO weeks start on
- Monday; the first ISO week has the year's first Thursday. YDAY may
- be as small as YDAY_MINIMUM. */
-#define ISO_WEEK_START_WDAY 1 /* Monday */
-#define ISO_WEEK1_WDAY 4 /* Thursday */
-#define YDAY_MINIMUM (-366)
-static int iso_week_days __P ((int, int));
-#ifdef __GNUC__
-__inline__
-#endif
-static int
-iso_week_days (yday, wday)
- int yday;
- int wday;
-{
- /* Add enough to the first operand of % to make it nonnegative. */
- int big_enough_multiple_of_7 = (-YDAY_MINIMUM / 7 + 2) * 7;
- return (yday
- - (yday - wday + ISO_WEEK1_WDAY + big_enough_multiple_of_7) % 7
- + ISO_WEEK1_WDAY - ISO_WEEK_START_WDAY);
-}
-
-
-#if !(defined _NL_CURRENT || HAVE_STRFTIME)
-static CHAR_T const weekday_name[][10] =
- {
- L_("Sunday"), L_("Monday"), L_("Tuesday"), L_("Wednesday"),
- L_("Thursday"), L_("Friday"), L_("Saturday")
- };
-static CHAR_T const month_name[][10] =
- {
- L_("January"), L_("February"), L_("March"), L_("April"), L_("May"),
- L_("June"), L_("July"), L_("August"), L_("September"), L_("October"),
- L_("November"), L_("December")
- };
-#endif
-
-
-#ifdef emacs
-# define my_strftime emacs_strftimeu
-# define ut_argument , ut
-# define ut_argument_spec int ut;
-# define ut_argument_spec_iso , int ut
-#else
-# ifdef COMPILE_WIDE
-# define my_strftime wcsftime
-# else
-# define my_strftime strftime
-# endif
-# define ut_argument
-# define ut_argument_spec
-# define ut_argument_spec_iso
-/* We don't have this information in general. */
-# define ut 0
-#endif
-
-#if !defined _LIBC && HAVE_TZNAME && HAVE_TZSET
- /* Solaris 2.5 tzset sometimes modifies the storage returned by localtime.
- Work around this bug by copying *tp before it might be munged. */
- size_t _strftime_copytm __P ((char *, size_t, const char *,
- const struct tm * ut_argument_spec_iso));
- size_t
- my_strftime (s, maxsize, format, tp ut_argument)
- CHAR_T *s;
- size_t maxsize;
- const CHAR_T *format;
- const struct tm *tp;
- ut_argument_spec
- {
- struct tm tmcopy;
- tmcopy = *tp;
- return _strftime_copytm (s, maxsize, format, &tmcopy ut_argument);
- }
-# undef my_strftime
-# define my_strftime(S, Maxsize, Format, Tp) \
- _strftime_copytm (S, Maxsize, Format, Tp)
-#endif
-
-
-/* Write information from TP into S according to the format
- string FORMAT, writing no more that MAXSIZE characters
- (including the terminating '\0') and returning number of
- characters written. If S is NULL, nothing will be written
- anywhere, so to determine how many characters would be
- written, use NULL for S and (size_t) UINT_MAX for MAXSIZE. */
-size_t
-my_strftime (s, maxsize, format, tp ut_argument)
- CHAR_T *s;
- size_t maxsize;
- const CHAR_T *format;
- const struct tm *tp;
- ut_argument_spec
-{
- int hour12 = tp->tm_hour;
-#ifdef _NL_CURRENT
- /* We cannot make the following values variables since we must delay
- the evaluation of these values until really needed since some
- expressions might not be valid in every situation. The `struct tm'
- might be generated by a strptime() call that initialized
- only a few elements. Dereference the pointers only if the format
- requires this. Then it is ok to fail if the pointers are invalid. */
-# define a_wkday \
- ((const CHAR_T *) _NL_CURRENT (LC_TIME, NLW(ABDAY_1) + tp->tm_wday))
-# define f_wkday \
- ((const CHAR_T *) _NL_CURRENT (LC_TIME, NLW(DAY_1) + tp->tm_wday))
-# define a_month \
- ((const CHAR_T *) _NL_CURRENT (LC_TIME, NLW(ABMON_1) + tp->tm_mon))
-# define f_month \
- ((const CHAR_T *) _NL_CURRENT (LC_TIME, NLW(MON_1) + tp->tm_mon))
-# define ampm \
- ((const CHAR_T *) _NL_CURRENT (LC_TIME, tp->tm_hour > 11 \
- ? NLW(PM_STR) : NLW(AM_STR)))
-
-# define aw_len STRLEN (a_wkday)
-# define am_len STRLEN (a_month)
-# define ap_len STRLEN (ampm)
-#else
-# if !HAVE_STRFTIME
-# define f_wkday (weekday_name[tp->tm_wday])
-# define f_month (month_name[tp->tm_mon])
-# define a_wkday f_wkday
-# define a_month f_month
-# define ampm (L_("AMPM") + 2 * (tp->tm_hour > 11))
-
- size_t aw_len = 3;
- size_t am_len = 3;
- size_t ap_len = 2;
-# endif
-#endif
- const char *zone;
- size_t i = 0;
- CHAR_T *p = s;
- const CHAR_T *f;
-
- zone = NULL;
-#if HAVE_TM_ZONE
- /* The POSIX test suite assumes that setting
- the environment variable TZ to a new value before calling strftime()
- will influence the result (the %Z format) even if the information in
- TP is computed with a totally different time zone.
- This is bogus: though POSIX allows bad behavior like this,
- POSIX does not require it. Do the right thing instead. */
- zone = (const char *) tp->tm_zone;
-#endif
-#if HAVE_TZNAME
- if (ut)
- {
- if (! (zone && *zone))
- zone = "GMT";
- }
- else
- {
- /* POSIX.1 8.1.1 requires that whenever strftime() is called, the
- time zone names contained in the external variable `tzname' shall
- be set as if the tzset() function had been called. */
-# if HAVE_TZSET
- tzset ();
-# endif
- }
-#endif
-
- if (hour12 > 12)
- hour12 -= 12;
- else
- if (hour12 == 0)
- hour12 = 12;
-
- for (f = format; *f != '\0'; ++f)
- {
- int pad = 0; /* Padding for number ('-', '_', or 0). */
- int modifier; /* Field modifier ('E', 'O', or 0). */
- int digits; /* Max digits for numeric format. */
- int number_value; /* Numeric value to be printed. */
- int negative_number; /* 1 if the number is negative. */
- const CHAR_T *subfmt;
- CHAR_T *bufp;
- CHAR_T buf[1 + (sizeof (int) < sizeof (time_t)
- ? INT_STRLEN_BOUND (time_t)
- : INT_STRLEN_BOUND (int))];
- int width = -1;
- int to_lowcase = 0;
- int to_uppcase = 0;
- int change_case = 0;
- int format_char;
-
-#if DO_MULTIBYTE && !defined COMPILE_WIDE
- switch (*f)
- {
- case L_('%'):
- break;
-
- case L_('\a'): case L_('\b'): case L_('\t'): case L_('\n'):
- case L_('\v'): case L_('\f'): case L_('\r'):
- case L_(' '): case L_('!'): case L_('"'): case L_('#'): case L_('&'):
- case L_('\''): case L_('('): case L_(')'): case L_('*'): case L_('+'):
- case L_(','): case L_('-'): case L_('.'): case L_('/'): case L_('0'):
- case L_('1'): case L_('2'): case L_('3'): case L_('4'): case L_('5'):
- case L_('6'): case L_('7'): case L_('8'): case L_('9'): case L_(':'):
- case L_(';'): case L_('<'): case L_('='): case L_('>'): case L_('?'):
- case L_('A'): case L_('B'): case L_('C'): case L_('D'): case L_('E'):
- case L_('F'): case L_('G'): case L_('H'): case L_('I'): case L_('J'):
- case L_('K'): case L_('L'): case L_('M'): case L_('N'): case L_('O'):
- case L_('P'): case L_('Q'): case L_('R'): case L_('S'): case L_('T'):
- case L_('U'): case L_('V'): case L_('W'): case L_('X'): case L_('Y'):
- case L_('Z'): case L_('['): case L_('\\'): case L_(']'): case L_('^'):
- case L_('_'): case L_('a'): case L_('b'): case L_('c'): case L_('d'):
- case L_('e'): case L_('f'): case L_('g'): case L_('h'): case L_('i'):
- case L_('j'): case L_('k'): case L_('l'): case L_('m'): case L_('n'):
- case L_('o'): case L_('p'): case L_('q'): case L_('r'): case L_('s'):
- case L_('t'): case L_('u'): case L_('v'): case L_('w'): case L_('x'):
- case L_('y'): case L_('z'): case L_('{'): case L_('|'): case L_('}'):
- case L_('~'):
- /* The C Standard requires these 98 characters (plus '%') to
- be in the basic execution character set. None of these
- characters can start a multibyte sequence, so they need
- not be analyzed further. */
- add (1, *p = *f);
- continue;
-
- default:
- /* Copy this multibyte sequence until we reach its end, find
- an error, or come back to the initial shift state. */
- {
- mbstate_t mbstate = mbstate_zero;
- size_t len = 0;
-
- do
- {
- size_t bytes = mbrlen (f + len, (size_t) -1, &mbstate);
-
- if (bytes == 0)
- break;
-
- if (bytes == (size_t) -2)
- {
- len += strlen (f + len);
- break;
- }
-
- if (bytes == (size_t) -1)
- {
- len++;
- break;
- }
-
- len += bytes;
- }
- while (! mbsinit (&mbstate));
-
- cpy (len, f);
- f += len - 1;
- continue;
- }
- }
-
-#else /* ! DO_MULTIBYTE */
-
- /* Either multibyte encodings are not supported, they are
- safe for formats, so any non-'%' byte can be copied through,
- or this is the wide character version. */
- if (*f != L_('%'))
- {
- add (1, *p = *f);
- continue;
- }
-
-#endif /* ! DO_MULTIBYTE */
-
- /* Check for flags that can modify a format. */
- while (1)
- {
- switch (*++f)
- {
- /* This influences the number formats. */
- case L_('_'):
- case L_('-'):
- case L_('0'):
- pad = *f;
- continue;
-
- /* This changes textual output. */
- case L_('^'):
- to_uppcase = 1;
- continue;
- case L_('#'):
- change_case = 1;
- continue;
-
- default:
- break;
- }
- break;
- }
-
- /* As a GNU extension we allow to specify the field width. */
- if (ISDIGIT (*f))
- {
- width = 0;
- do
- {
- width *= 10;
- width += *f - L_('0');
- ++f;
- }
- while (ISDIGIT (*f));
- }
-
- /* Check for modifiers. */
- switch (*f)
- {
- case L_('E'):
- case L_('O'):
- modifier = *f++;
- break;
-
- default:
- modifier = 0;
- break;
- }
-
- /* Now do the specified format. */
- format_char = *f;
- switch (format_char)
- {
-#define DO_NUMBER(d, v) \
- digits = width == -1 ? d : width; \
- number_value = v; goto do_number
-#define DO_NUMBER_SPACEPAD(d, v) \
- digits = width == -1 ? d : width; \
- number_value = v; goto do_number_spacepad
-
- case L_('%'):
- if (modifier != 0)
- goto bad_format;
- add (1, *p = *f);
- break;
-
- case L_('a'):
- if (modifier != 0)
- goto bad_format;
- if (change_case)
- {
- to_uppcase = 1;
- to_lowcase = 0;
- }
-#if defined _NL_CURRENT || !HAVE_STRFTIME
- cpy (aw_len, a_wkday);
- break;
-#else
- goto underlying_strftime;
-#endif
-
- case 'A':
- if (modifier != 0)
- goto bad_format;
- if (change_case)
- {
- to_uppcase = 1;
- to_lowcase = 0;
- }
-#if defined _NL_CURRENT || !HAVE_STRFTIME
- cpy (STRLEN (f_wkday), f_wkday);
- break;
-#else
- goto underlying_strftime;
-#endif
-
- case L_('b'):
- case L_('h'): /* POSIX.2 extension. */
- if (modifier != 0)
- goto bad_format;
-#if defined _NL_CURRENT || !HAVE_STRFTIME
- cpy (am_len, a_month);
- break;
-#else
- goto underlying_strftime;
-#endif
-
- case L_('B'):
- if (modifier != 0)
- goto bad_format;
- if (change_case)
- {
- to_uppcase = 1;
- to_lowcase = 0;
- }
-#if defined _NL_CURRENT || !HAVE_STRFTIME
- cpy (STRLEN (f_month), f_month);
- break;
-#else
- goto underlying_strftime;
-#endif
-
- case L_('c'):
- if (modifier == L_('O'))
- goto bad_format;
-#ifdef _NL_CURRENT
- if (! (modifier == 'E'
- && (*(subfmt = (CHAR_T *) _NL_CURRENT (LC_TIME,
- NLW(ERA_D_T_FMT)))
- != '\0')))
- subfmt = (CHAR_T *) _NL_CURRENT (LC_TIME, NLW(D_T_FMT));
-#else
-# if HAVE_STRFTIME
- goto underlying_strftime;
-# else
- subfmt = L_("%a %b %e %H:%M:%S %Y");
-# endif
-#endif
-
- subformat:
- {
- CHAR_T *old_start = p;
- size_t len = my_strftime (NULL, (size_t) -1, subfmt, tp);
- add (len, my_strftime (p, maxsize - i, subfmt, tp));
-
- if (to_uppcase)
- while (old_start < p)
- {
- *old_start = TOUPPER ((UCHAR_T) *old_start);
- ++old_start;
- }
- }
- break;
-
-#if HAVE_STRFTIME && ! (defined _NL_CURRENT && HAVE_STRUCT_ERA_ENTRY)
- underlying_strftime:
- {
- /* The relevant information is available only via the
- underlying strftime implementation, so use that. */
- char ufmt[4];
- char *u = ufmt;
- char ubuf[1024]; /* enough for any single format in practice */
- size_t len;
- *u++ = '%';
- if (modifier != 0)
- *u++ = modifier;
- *u++ = format_char;
- *u = '\0';
- len = strftime (ubuf, sizeof ubuf, ufmt, tp);
- if (len == 0 && ubuf[0] != '\0')
- return 0;
- cpy (len, ubuf);
- }
- break;
-#endif
-
- case L_('C'): /* POSIX.2 extension. */
- if (modifier == L_('O'))
- goto bad_format;
- if (modifier == L_('E'))
- {
-#if HAVE_STRUCT_ERA_ENTRY
- struct era_entry *era = _nl_get_era_entry (tp);
- if (era)
- {
-# ifdef COMPILE_WIDE
- /* XXX For the time being there is no equivalent to
- _nl_get_era_entry to get a wide character variant. */
- wchar_t *ws;
- size_t len;
- widen (era->name_fmt, ws, len);
- cpy (len, ws);
-# else
- size_t len = strlen (era->name_fmt);
- cpy (len, era->name_fmt);
-# endif
- break;
- }
-#else
-# if HAVE_STRFTIME
- goto underlying_strftime;
-# endif
-#endif
- }
-
- {
- int year = tp->tm_year + TM_YEAR_BASE;
- DO_NUMBER (1, year / 100 - (year % 100 < 0));
- }
-
- case L_('x'):
- if (modifier == L_('O'))
- goto bad_format;
-#ifdef _NL_CURRENT
- if (! (modifier == L_('E')
- && (*(subfmt = (CHAR_T *)_NL_CURRENT (LC_TIME,
- NLW(ERA_D_FMT)))
- != L_('\0'))))
- subfmt = (CHAR_T *) _NL_CURRENT (LC_TIME, NLW(D_FMT));
- goto subformat;
-#else
-# if HAVE_STRFTIME
- goto underlying_strftime;
-# else
- /* Fall through. */
-# endif
-#endif
- case L_('D'): /* POSIX.2 extension. */
- if (modifier != 0)
- goto bad_format;
- subfmt = L_("%m/%d/%y");
- goto subformat;
-
- case L_('d'):
- if (modifier == L_('E'))
- goto bad_format;
-
- DO_NUMBER (2, tp->tm_mday);
-
- case L_('e'): /* POSIX.2 extension. */
- if (modifier == L_('E'))
- goto bad_format;
-
- DO_NUMBER_SPACEPAD (2, tp->tm_mday);
-
- /* All numeric formats set DIGITS and NUMBER_VALUE and then
- jump to one of these two labels. */
-
- do_number_spacepad:
- /* Force `_' flag unless overwritten by `0' flag. */
- if (pad != L_('0'))
- pad = L_('_');
-
- do_number:
- /* Format the number according to the MODIFIER flag. */
-
- if (modifier == L_('O') && 0 <= number_value)
- {
-#ifdef _NL_CURRENT
- /* Get the locale specific alternate representation of
- the number NUMBER_VALUE. If none exist NULL is returned. */
-# ifdef COMPILE_WIDE
- const char *ncp = _nl_get_alt_digit (number_value);
- wchar_t *cp = NULL;
- if (ncp != NULL)
- {
- size_t len;
- widen (ncp, cp, len);
- }
-# else
- const char *cp = _nl_get_alt_digit (number_value);
-# endif
-
- if (cp != NULL)
- {
- size_t digitlen = STRLEN (cp);
- if (digitlen != 0)
- {
- cpy (digitlen, cp);
- break;
- }
- }
-#else
-# if HAVE_STRFTIME
- goto underlying_strftime;
-# endif
-#endif
- }
- {
- unsigned int u = number_value;
-
- bufp = buf + sizeof (buf) / sizeof (buf[0]);
- negative_number = number_value < 0;
-
- if (negative_number)
- u = -u;
-
- do
- *--bufp = u % 10 + L_('0');
- while ((u /= 10) != 0);
- }
-
- do_number_sign_and_padding:
- if (negative_number)
- *--bufp = L_('-');
-
- if (pad != L_('-'))
- {
- int padding = digits - (buf + (sizeof (buf) / sizeof (buf[0]))
- - bufp);
-
- if (pad == L_('_'))
- {
- while (0 < padding--)
- *--bufp = L_(' ');
- }
- else
- {
- bufp += negative_number;
- while (0 < padding--)
- *--bufp = L_('0');
- if (negative_number)
- *--bufp = L_('-');
- }
- }
-
- cpy (buf + sizeof (buf) / sizeof (buf[0]) - bufp, bufp);
- break;
-
- case L_('F'):
- if (modifier != 0)
- goto bad_format;
- subfmt = L_("%Y-%m-%d");
- goto subformat;
-
- case L_('H'):
- if (modifier == L_('E'))
- goto bad_format;
-
- DO_NUMBER (2, tp->tm_hour);
-
- case L_('I'):
- if (modifier == L_('E'))
- goto bad_format;
-
- DO_NUMBER (2, hour12);
-
- case L_('k'): /* GNU extension. */
- if (modifier == L_('E'))
- goto bad_format;
-
- DO_NUMBER_SPACEPAD (2, tp->tm_hour);
-
- case L_('l'): /* GNU extension. */
- if (modifier == L_('E'))
- goto bad_format;
-
- DO_NUMBER_SPACEPAD (2, hour12);
-
- case L_('j'):
- if (modifier == L_('E'))
- goto bad_format;
-
- DO_NUMBER (3, 1 + tp->tm_yday);
-
- case L_('M'):
- if (modifier == L_('E'))
- goto bad_format;
-
- DO_NUMBER (2, tp->tm_min);
-
- case L_('m'):
- if (modifier == L_('E'))
- goto bad_format;
-
- DO_NUMBER (2, tp->tm_mon + 1);
-
- case L_('n'): /* POSIX.2 extension. */
- add (1, *p = L_('\n'));
- break;
-
- case L_('P'):
- to_lowcase = 1;
-#if !defined _NL_CURRENT && HAVE_STRFTIME
- format_char = L_('p');
-#endif
- /* FALLTHROUGH */
-
- case L_('p'):
- if (change_case)
- {
- to_uppcase = 0;
- to_lowcase = 1;
- }
-#if defined _NL_CURRENT || !HAVE_STRFTIME
- cpy (ap_len, ampm);
- break;
-#else
- goto underlying_strftime;
-#endif
-
- case L_('R'): /* GNU extension. */
- subfmt = L_("%H:%M");
- goto subformat;
-
- case L_('r'): /* POSIX.2 extension. */
-#ifdef _NL_CURRENT
- if (*(subfmt = (CHAR_T *) _NL_CURRENT (LC_TIME,
- NLW(T_FMT_AMPM))) == L_('\0'))
-#endif
- subfmt = L_("%I:%M:%S %p");
- goto subformat;
-
- case L_('S'):
- if (modifier == L_('E'))
- goto bad_format;
-
- DO_NUMBER (2, tp->tm_sec);
-
- case L_('s'): /* GNU extension. */
- {
- struct tm ltm;
- time_t t;
-
- ltm = *tp;
- t = mktime (<m);
-
- /* Generate string value for T using time_t arithmetic;
- this works even if sizeof (long) < sizeof (time_t). */
-
- bufp = buf + sizeof (buf) / sizeof (buf[0]);
- negative_number = t < 0;
-
- do
- {
- int d = t % 10;
- t /= 10;
-
- if (negative_number)
- {
- d = -d;
-
- /* Adjust if division truncates to minus infinity. */
- if (0 < -1 % 10 && d < 0)
- {
- t++;
- d += 10;
- }
- }
-
- *--bufp = d + L_('0');
- }
- while (t != 0);
-
- digits = 1;
- goto do_number_sign_and_padding;
- }
-
- case L_('X'):
- if (modifier == L_('O'))
- goto bad_format;
-#ifdef _NL_CURRENT
- if (! (modifier == L_('E')
- && (*(subfmt = (CHAR_T *) _NL_CURRENT (LC_TIME,
- NLW(ERA_T_FMT)))
- != L_('\0'))))
- subfmt = (CHAR_T *) _NL_CURRENT (LC_TIME, NLW(T_FMT));
- goto subformat;
-#else
-# if HAVE_STRFTIME
- goto underlying_strftime;
-# else
- /* Fall through. */
-# endif
-#endif
- case L_('T'): /* POSIX.2 extension. */
- subfmt = L_("%H:%M:%S");
- goto subformat;
-
- case L_('t'): /* POSIX.2 extension. */
- add (1, *p = L_('\t'));
- break;
-
- case L_('u'): /* POSIX.2 extension. */
- DO_NUMBER (1, (tp->tm_wday - 1 + 7) % 7 + 1);
-
- case L_('U'):
- if (modifier == L_('E'))
- goto bad_format;
-
- DO_NUMBER (2, (tp->tm_yday - tp->tm_wday + 7) / 7);
-
- case L_('V'):
- case L_('g'): /* GNU extension. */
- case L_('G'): /* GNU extension. */
- if (modifier == L_('E'))
- goto bad_format;
- {
- int year = tp->tm_year + TM_YEAR_BASE;
- int days = iso_week_days (tp->tm_yday, tp->tm_wday);
-
- if (days < 0)
- {
- /* This ISO week belongs to the previous year. */
- year--;
- days = iso_week_days (tp->tm_yday + (365 + __isleap (year)),
- tp->tm_wday);
- }
- else
- {
- int d = iso_week_days (tp->tm_yday - (365 + __isleap (year)),
- tp->tm_wday);
- if (0 <= d)
- {
- /* This ISO week belongs to the next year. */
- year++;
- days = d;
- }
- }
-
- switch (*f)
- {
- case L_('g'):
- DO_NUMBER (2, (year % 100 + 100) % 100);
-
- case L_('G'):
- DO_NUMBER (1, year);
-
- default:
- DO_NUMBER (2, days / 7 + 1);
- }
- }
-
- case L_('W'):
- if (modifier == L_('E'))
- goto bad_format;
-
- DO_NUMBER (2, (tp->tm_yday - (tp->tm_wday - 1 + 7) % 7 + 7) / 7);
-
- case L_('w'):
- if (modifier == L_('E'))
- goto bad_format;
-
- DO_NUMBER (1, tp->tm_wday);
-
- case L_('Y'):
- if (modifier == 'E')
- {
-#if HAVE_STRUCT_ERA_ENTRY
- struct era_entry *era = _nl_get_era_entry (tp);
- if (era)
- {
-# ifdef COMPILE_WIDE
- /* XXX For the time being there is no wide character
- equivalent or _nl_get_era_entry. */
- const char *ncp = strchr (era->name_fmt, '\0') + 1;
- size_t len;
- wchar_t *s;
- widen (ncp, s, len);
- subfmt = s;
-# else
- subfmt = strchr (era->name_fmt, '\0') + 1;
-# endif
- goto subformat;
- }
-#else
-# if HAVE_STRFTIME
- goto underlying_strftime;
-# endif
-#endif
- }
- if (modifier == L_('O'))
- goto bad_format;
- else
- DO_NUMBER (1, tp->tm_year + TM_YEAR_BASE);
-
- case L_('y'):
- if (modifier == L_('E'))
- {
-#if HAVE_STRUCT_ERA_ENTRY
- struct era_entry *era = _nl_get_era_entry (tp);
- if (era)
- {
- int delta = tp->tm_year - era->start_date[0];
- DO_NUMBER (1, (era->offset
- + (era->direction == '-' ? -delta : delta)));
- }
-#else
-# if HAVE_STRFTIME
- goto underlying_strftime;
-# endif
-#endif
- }
- DO_NUMBER (2, (tp->tm_year % 100 + 100) % 100);
-
- case L_('Z'):
- if (change_case)
- {
- to_uppcase = 0;
- to_lowcase = 1;
- }
-
-#if HAVE_TZNAME
- /* The tzset() call might have changed the value. */
- if (!(zone && *zone) && tp->tm_isdst >= 0)
- zone = tzname[tp->tm_isdst];
-#endif
- if (! zone)
- zone = ""; /* POSIX.2 requires the empty string here. */
-
-#ifdef COMPILE_WIDE
- {
- /* The zone string is always given in multibyte form. We have
- to transform it first. */
- wchar_t *wczone;
- size_t len;
- widen (zone, wczone, len);
- cpy (len, wczone);
- }
-#else
- cpy (strlen (zone), zone);
-#endif
- break;
-
- case L_('z'): /* GNU extension. */
- if (tp->tm_isdst < 0)
- break;
-
- {
- int diff;
-#if HAVE_TM_GMTOFF
- diff = tp->tm_gmtoff;
-#else
- if (ut)
- diff = 0;
- else
- {
- struct tm gtm;
- struct tm ltm;
- time_t lt;
-
- ltm = *tp;
- lt = mktime (<m);
-
- if (lt == (time_t) -1)
- {
- /* mktime returns -1 for errors, but -1 is also a
- valid time_t value. Check whether an error really
- occurred. */
- struct tm tm;
-
- if (! my_strftime_localtime_r (<, &tm)
- || ((ltm.tm_sec ^ tm.tm_sec)
- | (ltm.tm_min ^ tm.tm_min)
- | (ltm.tm_hour ^ tm.tm_hour)
- | (ltm.tm_mday ^ tm.tm_mday)
- | (ltm.tm_mon ^ tm.tm_mon)
- | (ltm.tm_year ^ tm.tm_year)))
- break;
- }
-
- if (! my_strftime_gmtime_r (<, >m))
- break;
-
- diff = tm_diff (<m, >m);
- }
-#endif
-
- if (diff < 0)
- {
- add (1, *p = L_('-'));
- diff = -diff;
- }
- else
- add (1, *p = L_('+'));
-
- diff /= 60;
- DO_NUMBER (4, (diff / 60) * 100 + diff % 60);
- }
-
- case L_('\0'): /* GNU extension: % at end of format. */
- --f;
- /* Fall through. */
- default:
- /* Unknown format; output the format, including the '%',
- since this is most likely the right thing to do if a
- multibyte string has been misparsed. */
- bad_format:
- {
- int flen;
- for (flen = 1; f[1 - flen] != L_('%'); flen++)
- continue;
- cpy (flen, &f[1 - flen]);
- }
- break;
- }
- }
-
- if (p && maxsize != 0)
- *p = L_('\0');
- return i;
-}
-
-
-#ifdef emacs
-/* For Emacs we have a separate interface which corresponds to the normal
- strftime function and does not have the extra information whether the
- TP arguments comes from a `gmtime' call or not. */
size_t
-emacs_strftime (s, maxsize, format, tp)
- char *s;
- size_t maxsize;
- const char *format;
- const struct tm *tp;
+strftime (char *s, size_t maxsize, const char *format, const struct tm *tp)
{
- return my_strftime (s, maxsize, format, tp, 0);
+ return __strftime_l (s, maxsize, format, tp, _NL_CURRENT_LOCALE);
}
-#endif
+libc_hidden_def (strftime)
projects / platform / upstream / glibc.git / blobdiff