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-rw-r--r--time/strftime.c1421
1 files changed, 6 insertions, 1415 deletions
diff --git a/time/strftime.c b/time/strftime.c
index 04250317e3..5a4917e352 100644
--- a/time/strftime.c
+++ b/time/strftime.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-1999, 2000, 2001, 2002, 2003
+/* Copyright (C) 1991-1999, 2000, 2001, 2002, 2003, 2004
    Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
@@ -17,1422 +17,13 @@
    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
    02111-1307 USA.  */
 
-#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>
-#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__)
-#  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 tzname __tzname
-# define tzset __tzset
-#endif
-
-#if !HAVE_TM_GMTOFF
-/* Portable standalone applications should supply a "time_r.h" that
-   declares a POSIX-compliant localtime_r, for the benefit of older
-   implementations that lack localtime_r or have a nonstandard one.
-   Similarly for gmtime_r.  See the gnulib time_r module for one way
-   to implement this.  */
-# include "time_r.h"
-# undef __gmtime_r
-# undef __localtime_r
-# define __gmtime_r gmtime_r
-# define __localtime_r localtime_r
-#endif
-
-
-#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 = 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
-
-
-#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
-#  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 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 _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 LOCALE_PARAM)
-      CHAR_T *s;
-      size_t maxsize;
-      const CHAR_T *format;
-      const struct tm *tp;
-      ut_argument_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 is 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 ut_argument LOCALE_ARG);
-	    add (len, my_strftime (p, maxsize - i, subfmt,
-				   tp ut_argument 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
-
-	    *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 overwritten 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);
-
-	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'):
-#if !defined _NL_CURRENT && HAVE_STRFTIME
-	  goto underlying_strftime;
-#else
-# 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;
-#endif
-
-	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 (&ltm);
-
-	    /* 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 (&ltm);
-
-		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 (! __localtime_r (&lt, &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 (! __gmtime_r (&lt, &gtm))
-		  break;
-
-		diff = tm_diff (&ltm, &gtm);
-	      }
-#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
-/* 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)