-/* Copyright (C) 1991,92,93,94,95,96,97,98,99,2000,2003
- Free Software Foundation, Inc.
-
- This file is part of the GNU Emacs.
-
- 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.
-
- 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.
-
- 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. */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#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
-#ifndef USE_CRT_DLL
-extern char *tzname[];
-#endif
-#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>
-# if __hpux
-# include <sys/_mbstate_t.h>
-# endif
-# if !defined (mbsinit) && !defined (HAVE_MBSINIT)
-# define mbsinit(ps) 1
-# endif /* !defined (mbsinit) && !defined (HAVE_MBSINIT) */
-# 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
-
-#ifdef HAVE_LIMITS_H
-# include <limits.h>
-#endif
-
-#ifdef STDC_HEADERS
-# include <stddef.h>
-# include <stdlib.h>
-#else
-# ifndef HAVE_MEMCPY
-# define memcpy(d, s, n) bcopy ((s), (d), (n))
-# endif
-#endif
-
-#ifdef COMPILE_WIDE
-# include <endian.h>
-# 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 emacs && defined PROTOTYPES
-# define __P(args) args
-# elif 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;
-}
-
-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 /* ! HAVE_TM_GMTOFF */
-
-#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 && !defined(WINDOWSNT) && 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 _strftime_copytm
-#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 = "UTC";
- }
- 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_('\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 97 characters (plus '%', `\a') to
- be in the basic execution character set. None of these
- characters can start a multibyte sequence, so they need
- not be analyzed further. Some old compilers object to
- `\a', so don't bother optimizing for it. */
- 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 (change_case)
- {
- to_uppcase = 1;
- to_lowcase = 0;
- }
- 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, 0);
- add (len, my_strftime (p, maxsize - i, subfmt, tp, 0));
-
- 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;
- /* Make sure we're calling the actual underlying strftime.
- In some cases, config.h contains something like
- "#define strftime rpl_strftime". */
-# ifdef strftime
-# undef strftime
- size_t strftime ();
-# endif
-
-#ifdef STRFTIME_NO_POSIX2
- /* Some system libraries do not support the POSIX.2 extensions.
- In those cases, convert %h to %b, and strip modifiers. */
- modifier = 0;
- if (format_char == 'h')
- format_char = 'b';
-#endif
- *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
- size_t len = __wcslen (era->era_wname);
- cpy (len, era->era_wname);
-# else
- size_t len = strlen (era->era_name);
- cpy (len, era->era_name);
-# 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 wchar_t *cp = _nl_get_walt_digit (number_value);
-# 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
- subfmt = era->era_wformat;
-# else
- subfmt = era->era_format;
-# 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
- + delta * era->absolute_direction));
- }
-#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;
-{
- return my_strftime (s, maxsize, format, tp, 0);
-}
-#endif
-
+/* Copyright (C) 1991,92,93,94,95,96,97,98,99,2000,2003
+ Free Software Foundation, Inc.
+
+ NOTE: The canonical source of this file is maintained with gnulib.
+ Bugs can be reported to bug-gnulib@gnu.org.
+
+ This file is part of the GNU Emacs.
+
+ This program 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, or
+ (at your option) any later version.
+
+ This program 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.
+
+ 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. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#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
+
+#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
+#ifndef USE_CRT_DLL
+extern char *tzname[];
+#endif
+#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>
+# ifdef HAVE_SYS__MBSTATE_H /* previously tested __hpux */
+# include <sys/_mbstate_t.h>
+# endif
+# if !defined (mbsinit) && !defined (HAVE_MBSINIT)
+# define mbsinit(ps) 1
+# endif /* !defined (mbsinit) && !defined (HAVE_MBSINIT) */
+# 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
+
+#ifdef HAVE_LIMITS_H
+# include <limits.h>
+#endif
+
+#ifdef STDC_HEADERS
+# include <stddef.h>
+# include <stdlib.h>
+# include <string.h>
+#else
+# ifndef HAVE_MEMCPY
+# define memcpy(d, s, n) bcopy ((s), (d), (n))
+# endif
+#endif
+
+#ifdef COMPILE_WIDE
+# include <endian.h>
+# 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__) || defined (PROTOTYPES)
+# 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;
+}
+
+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 /* ! HAVE_TM_GMTOFF */
+#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 ((size_t) _incr >= maxsize - i) \
+ 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 LOCALE_ARG); \
+ else if (to_uppcase) \
+ memcpy_uppcase (p, (s), _n LOCALE_ARG); \
+ else \
+ MEMCPY ((PTR) p, (const PTR) (s), _n))
+
+#ifdef COMPILE_WIDE
+# ifndef USE_IN_EXTENDED_LOCALE_MODEL
+# undef __mbsrtowcs_l
+# define __mbsrtowcs_l(d, s, l, st, loc) __mbsrtowcs (d, s, l, st)
+# endif
+# define widen(os, ws, l) \
+ { \
+ mbstate_t __st; \
+ const char *__s = os; \
+ memset (&__st, '\0', sizeof (__st)); \
+ l = __mbsrtowcs_l (NULL, &__s, 0, &__st, loc); \
+ ws = (wchar_t *) alloca ((l + 1) * sizeof (wchar_t)); \
+ (void) __mbsrtowcs_l (ws, &__s, l, &__st, loc); \
+ }
+#endif
+
+
+#if defined _LIBC && defined USE_IN_EXTENDED_LOCALE_MODEL
+/* We use this code also for the extended locale handling where the
+ function gets as an additional argument the locale which has to be
+ used. To access the values we have to redefine the _NL_CURRENT
+ macro. */
+# define strftime __strftime_l
+# define wcsftime __wcsftime_l
+# undef _NL_CURRENT
+# define _NL_CURRENT(category, item) \
+ (current->values[_NL_ITEM_INDEX (item)].string)
+# define LOCALE_PARAM , loc
+# define LOCALE_ARG , loc
+# define LOCALE_PARAM_DECL __locale_t loc;
+# define LOCALE_PARAM_PROTO , __locale_t loc
+# define HELPER_LOCALE_ARG , current
+#else
+# define LOCALE_PARAM
+# define LOCALE_PARAM_PROTO
+# define LOCALE_ARG
+# define LOCALE_PARAM_DECL
+# ifdef _LIBC
+# define HELPER_LOCALE_ARG , _NL_CURRENT_DATA (LC_TIME)
+# else
+# define HELPER_LOCALE_ARG
+# endif
+#endif
+
+#ifdef COMPILE_WIDE
+# ifdef USE_IN_EXTENDED_LOCALE_MODEL
+# define TOUPPER(Ch, L) __towupper_l (Ch, L)
+# define TOLOWER(Ch, L) __towlower_l (Ch, L)
+# else
+# define TOUPPER(Ch, L) towupper (Ch)
+# define TOLOWER(Ch, L) towlower (Ch)
+# endif
+#else
+# ifdef _LIBC
+# ifdef USE_IN_EXTENDED_LOCALE_MODEL
+# define TOUPPER(Ch, L) __toupper_l (Ch, L)
+# define TOLOWER(Ch, L) __tolower_l (Ch, L)
+# else
+# define TOUPPER(Ch, L) toupper (Ch)
+# define TOLOWER(Ch, L) tolower (Ch)
+# endif
+# else
+# define TOUPPER(Ch, L) (islower (Ch) ? toupper (Ch) : (Ch))
+# define TOLOWER(Ch, L) (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 LOCALE_PARAM_PROTO));
+
+static CHAR_T *
+memcpy_lowcase (dest, src, len LOCALE_PARAM)
+ CHAR_T *dest;
+ const CHAR_T *src;
+ size_t len;
+ LOCALE_PARAM_DECL
+{
+ while (len-- > 0)
+ dest[len] = TOLOWER ((UCHAR_T) src[len], loc);
+ return dest;
+}
+
+static CHAR_T *memcpy_uppcase __P ((CHAR_T *dest, const CHAR_T *src,
+ size_t len LOCALE_PARAM_PROTO));
+
+static CHAR_T *
+memcpy_uppcase (dest, src, len LOCALE_PARAM)
+ CHAR_T *dest;
+ const CHAR_T *src;
+ size_t len;
+ LOCALE_PARAM_DECL
+{
+ while (len-- > 0)
+ dest[len] = TOUPPER ((UCHAR_T) src[len], loc);
+ 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
+
+
+/* When compiling this file, GNU applications can #define my_strftime
+ to a symbol (typically nstrftime) to get an extended strftime with
+ extra arguments UT and NS. */
+
+#ifdef my_strftime
+# define extra_args , ut, ns
+# define extra_args_spec int ut; int ns;
+# define extra_args_spec_iso , int ut, int ns
+#else
+# ifdef COMPILE_WIDE
+# define my_strftime wcsftime
+# define nl_get_alt_digit _nl_get_walt_digit
+# else
+# define my_strftime strftime
+# define nl_get_alt_digit _nl_get_alt_digit
+# endif
+# define extra_args
+# define extra_args_spec
+# define extra_args_spec_iso
+/* We don't have this information in general. */
+# define ut 0
+# define ns 0
+#endif
+
+#if !defined _LIBC && !defined(WINDOWSNT) && 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 * extra_args_spec_iso));
+ size_t
+ my_strftime (s, maxsize, format, tp extra_args)
+ CHAR_T *s;
+ size_t maxsize;
+ const CHAR_T *format;
+ const struct tm *tp;
+ extra_args_spec
+ {
+ struct tm tmcopy;
+ tmcopy = *tp;
+ return _strftime_copytm (s, maxsize, format, &tmcopy extra_args);
+ }
+# undef my_strftime
+# define my_strftime _strftime_copytm
+#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 extra_args LOCALE_PARAM)
+ CHAR_T *s;
+ size_t maxsize;
+ const CHAR_T *format;
+ const struct tm *tp;
+ extra_args_spec
+ LOCALE_PARAM_DECL
+{
+#if defined _LIBC && defined USE_IN_EXTENDED_LOCALE_MODEL
+ struct locale_data *const current = loc->__locales[LC_TIME];
+#endif
+
+ 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;
+#if DO_MULTIBYTE && !defined COMPILE_WIDE
+ const char *format_end = NULL;
+#endif
+
+ 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 requires that local time zone information be used as
+ though strftime called tzset. */
+# 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_('\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;
+ size_t fsize;
+
+ if (! format_end)
+ format_end = f + strlen (f) + 1;
+ fsize = format_end - f;
+
+ do
+ {
+ size_t bytes = mbrlen (f + len, fsize - len, &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
+ {
+ if (width > INT_MAX / 10
+ || (width == INT_MAX / 10 && *f - L_('0') > INT_MAX % 10))
+ /* Avoid overflow. */
+ width = INT_MAX;
+ else
+ {
+ 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 = d > width ? d : width; \
+ number_value = v; goto do_number
+#define DO_NUMBER_SPACEPAD(d, v) \
+ digits = d > width ? 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'):
+ if (change_case)
+ {
+ to_uppcase = 1;
+ to_lowcase = 0;
+ }
+ 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 =
+ (const CHAR_T *) _NL_CURRENT (LC_TIME,
+ NLW(ERA_D_T_FMT)))
+ != '\0')))
+ subfmt = (const 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 extra_args LOCALE_ARG);
+ add (len, my_strftime (p, maxsize - i, subfmt,
+ tp extra_args LOCALE_ARG));
+
+ if (to_uppcase)
+ while (old_start < p)
+ {
+ *old_start = TOUPPER ((UCHAR_T) *old_start, loc);
+ ++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;
+ /* Make sure we're calling the actual underlying strftime.
+ In some cases, config.h contains something like
+ "#define strftime rpl_strftime". */
+# ifdef strftime
+# undef strftime
+ size_t strftime ();
+# endif
+
+#ifdef STRFTIME_NO_POSIX2
+ /* Some system libraries do not support the POSIX.2 extensions.
+ In those cases, convert %h to %b, and strip modifiers. */
+ modifier = 0;
+ if (format_char == 'h')
+ format_char = 'b';
+#endif
+ *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'):
+ 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 HELPER_LOCALE_ARG);
+ if (era)
+ {
+# ifdef COMPILE_WIDE
+ size_t len = __wcslen (era->era_wname);
+ cpy (len, era->era_wname);
+# else
+ size_t len = strlen (era->era_name);
+ cpy (len, era->era_name);
+# 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 =
+ (const CHAR_T *)_NL_CURRENT (LC_TIME, NLW(ERA_D_FMT)))
+ != L_('\0'))))
+ subfmt = (const 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'):
+ 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'):
+ 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 overridden by `0' or `-' flag. */
+ if (pad != L_('0') && pad != L_('-'))
+ 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. */
+ const CHAR_T *cp = nl_get_alt_digit (number_value
+ HELPER_LOCALE_ARG);
+
+ 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 (padding > 0)
+ {
+ if (pad == L_('_'))
+ {
+ if ((size_t) padding >= maxsize - i)
+ return 0;
+
+ if (p)
+ memset_space (p, padding);
+ i += padding;
+ width = width > padding ? width - padding : 0;
+ }
+ else
+ {
+ if ((size_t) digits >= maxsize - i)
+ return 0;
+
+ if (negative_number)
+ {
+ ++bufp;
+
+ if (p)
+ *p++ = L_('-');
+ ++i;
+ }
+
+ if (p)
+ memset_zero (p, padding);
+ i += padding;
+ width = 0;
+ }
+ }
+ }
+
+ 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);
+
+#ifndef _LIBC
+ case L_('N'): /* GNU extension. */
+ if (modifier == L_('E'))
+ goto bad_format;
+
+ number_value = ns;
+ if (width != -1)
+ {
+ /* Take an explicit width less than 9 as a precision. */
+ int j;
+ for (j = width; j < 9; j++)
+ number_value /= 10;
+ }
+
+ DO_NUMBER (9, number_value);
+#endif
+
+ case L_('n'):
+ 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'):
+ subfmt = L_("%H:%M");
+ goto subformat;
+
+ case L_('r'):
+#ifdef _NL_CURRENT
+ if (*(subfmt = (const 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 =
+ (const CHAR_T *) _NL_CURRENT (LC_TIME, NLW(ERA_T_FMT)))
+ != L_('\0'))))
+ subfmt = (const 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'):
+ subfmt = L_("%H:%M:%S");
+ goto subformat;
+
+ case L_('t'):
+ add (1, *p = L_('\t'));
+ break;
+
+ case L_('u'):
+ 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'):
+ case L_('G'):
+ 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 HELPER_LOCALE_ARG);
+ if (era)
+ {
+# ifdef COMPILE_WIDE
+ subfmt = era->era_wformat;
+# else
+ subfmt = era->era_format;
+# 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 HELPER_LOCALE_ARG);
+ if (era)
+ {
+ int delta = tp->tm_year - era->start_date[0];
+ DO_NUMBER (1, (era->offset
+ + delta * era->absolute_direction));
+ }
+#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 = "";
+
+#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'):
+ 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 _LIBC
+libc_hidden_def (my_strftime)
+#endif
+
+
+#ifdef emacs
+#undef ut
+/* For Emacs we have a separate interface which corresponds to the normal
+ strftime function plus the ut argument, but without the ns argument. */
+size_t
+emacs_strftimeu (s, maxsize, format, tp, ut)
+ char *s;
+ size_t maxsize;
+ const char *format;
+ const struct tm *tp;
+ int ut;
+{
+ return my_strftime (s, maxsize, format, tp, ut, 0);
+}
+#endif
HCoop / bpt / emacs.git / commitdiff