-/* Copyright (C) 1991, 92, 93, 94, 95, 96 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2001, 2003-2007, 2009-2013 Free Software Foundation, Inc.
- NOTE: The canonical source of this file is maintained with the GNU C
- Library. Bugs can be reported to bug-glibc@prep.ai.mit.edu.
+ NOTE: The canonical source of this file is maintained with the GNU C Library.
+ Bugs can be reported to bug-glibc@prep.ai.mit.edu.
- This program is free software; you can redistribute it and/or modify it
- under the terms of the GNU General Public License as published by the
- Free Software Foundation; either version 2, or (at your option) any
- later version.
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, 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
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
- along with this program; 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
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#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 MULTIBYTE_IS_FORMAT_SAFE 1
-# define STDC_HEADERS 1
-# include <ansidecl.h>
+# define HAVE_TZNAME 1
+# define HAVE_TZSET 1
# include "../locale/localeinfo.h"
-#endif
-
-#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>
+# include <config.h>
+# if FPRINTFTIME
+# include "fprintftime.h"
# else
-# include <time.h>
+# include "strftime.h"
# endif
#endif
-/* Do multibyte processing if multibytes are supported, unless
+#include <ctype.h>
+#include <time.h>
+
+#if HAVE_TZNAME && !HAVE_DECL_TZNAME
+extern char *tzname[];
+#endif
+
+/* Do multibyte processing if multibyte encodings 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)
+ conversion specifications. The multibyte encodings used by the
+ C library on the various platforms (UTF-8, GB2312, GBK, CP936,
+ GB18030, EUC-TW, BIG5, BIG5-HKSCS, CP950, EUC-JP, EUC-KR, CP949,
+ SHIFT_JIS, CP932, JOHAB) are safe for formats, because the byte '%'
+ cannot occur in a multibyte character except in the first byte.
+
+ The DEC-HANYU encoding used on OSF/1 is not safe for formats, but
+ this encoding has never been seen in real-life use, so we ignore
+ it. */
+#if !(defined __osf__ && 0)
+# define MULTIBYTE_IS_FORMAT_SAFE 1
+#endif
+#define DO_MULTIBYTE (! 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
+# include <wchar.h>
static const mbstate_t mbstate_zero;
#endif
-#if HAVE_LIMITS_H
-# include <limits.h>
-#endif
+#include <limits.h>
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdlib.h>
+#include <string.h>
-#if STDC_HEADERS
-# include <stddef.h>
-# include <stdlib.h>
-# include <string.h>
-#else
-# define memcpy(d, s, n) bcopy (s, d, n)
-#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
-#ifndef __P
-#if defined (__GNUC__) || (defined (__STDC__) && __STDC__)
-#define __P(args) args
-#else
-#define __P(args) ()
-#endif /* GCC. */
-#endif /* Not __P. */
+# define MEMCPY(d, s, n) __wmemcpy (d, s, n)
+# define STRLEN(s) __wcslen (s)
-#ifndef PTR
-#ifdef __STDC__
-#define PTR void *
#else
-#define PTR char *
-#endif
-#endif
+# define CHAR_T char
+# define UCHAR_T unsigned char
+# define L_(Str) Str
+# define NLW(Sym) Sym
-#ifndef CHAR_BIT
-#define CHAR_BIT 8
-#endif
+# define MEMCPY(d, s, n) memcpy (d, s, n)
+# define STRLEN(s) strlen (s)
-#define TYPE_SIGNED(t) ((t) -1 < 0)
+#endif
-/* 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. */
+/* Shift A right by B bits portably, by dividing A by 2**B and
+ truncating towards minus infinity. A and B should be free of side
+ effects, and B should be in the range 0 <= B <= INT_BITS - 2, where
+ INT_BITS is the number of useful bits in an int. GNU code can
+ assume that INT_BITS is at least 32.
+
+ ISO C99 says that A >> B is implementation-defined if A < 0. Some
+ implementations (e.g., UNICOS 9.0 on a Cray Y-MP EL) don't shift
+ right in the usual way when A < 0, so SHR falls back on division if
+ ordinary A >> B doesn't seem to be the usual signed shift. */
+#define SHR(a, b) \
+ (-1 >> 1 == -1 \
+ ? (a) >> (b) \
+ : (a) / (1 << (b)) - ((a) % (1 << (b)) < 0))
+
+/* Bound on length of the string representing an integer type or expression T.
+ Subtract 1 for the sign bit if t is signed; log10 (2.0) < 146/485;
+ add 1 for integer division truncation; add 1 more for a minus sign
+ if needed. */
#define INT_STRLEN_BOUND(t) \
- ((sizeof (t) * CHAR_BIT - TYPE_SIGNED (t)) * 302 / 100 + 1 + TYPE_SIGNED (t))
+ ((sizeof (t) * CHAR_BIT - 1) * 146 / 485 + 2)
#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) \
+# define __isleap(year) \
((year) % 4 == 0 && ((year) % 100 != 0 || (year) % 400 == 0))
#endif
#ifdef _LIBC
-# define gmtime_r __gmtime_r
-# define localtime_r __localtime_r
+# define tzname __tzname
+# define tzset __tzset
+#endif
+
+#if !HAVE_TM_GMTOFF
+/* Portable standalone applications should supply a "time.h" that
+ declares a POSIX-compliant localtime_r, for the benefit of older
+ implementations that lack localtime_r or have a nonstandard one.
+ See the gnulib time_r module for one way to implement this. */
+# undef __gmtime_r
+# undef __localtime_r
+# define __gmtime_r gmtime_r
+# define __localtime_r localtime_r
+#endif
+
+
+#ifndef FPRINTFTIME
+# define FPRINTFTIME 0
+#endif
+
+#if FPRINTFTIME
+# define STREAM_OR_CHAR_T FILE
+# define STRFTIME_ARG(x) /* empty */
+#else
+# define STREAM_OR_CHAR_T CHAR_T
+# define STRFTIME_ARG(x) x,
+#endif
+
+#if FPRINTFTIME
+# define memset_byte(P, Len, Byte) \
+ do { size_t _i; for (_i = 0; _i < Len; _i++) fputc (Byte, P); } while (0)
+# define memset_space(P, Len) memset_byte (P, Len, ' ')
+# define memset_zero(P, Len) memset_byte (P, Len, '0')
+#elif defined 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
+
+#if FPRINTFTIME
+# define advance(P, N)
+#else
+# define advance(P, N) ((P) += (N))
+#endif
+
+#define add(n, f) \
+ do \
+ { \
+ size_t _n = (n); \
+ size_t _w = (width < 0 ? 0 : width); \
+ size_t _incr = _n < _w ? _w : _n; \
+ if (_incr >= maxsize - i) \
+ return 0; \
+ if (p) \
+ { \
+ if (digits == 0 && _n < _w) \
+ { \
+ size_t _delta = width - _n; \
+ if (pad == L_('0')) \
+ memset_zero (p, _delta); \
+ else \
+ memset_space (p, _delta); \
+ } \
+ f; \
+ advance (p, _n); \
+ } \
+ i += _incr; \
+ } while (0)
+
+#if FPRINTFTIME
+# define add1(C) add (1, fputc (C, p))
+#else
+# define add1(C) add (1, *p = C)
+#endif
+
+#if FPRINTFTIME
+# define cpy(n, s) \
+ add ((n), \
+ do \
+ { \
+ if (to_lowcase) \
+ fwrite_lowcase (p, (s), _n); \
+ else if (to_uppcase) \
+ fwrite_uppcase (p, (s), _n); \
+ else \
+ { \
+ /* Ignore the value of fwrite. The caller can determine whether \
+ an error occurred by inspecting ferror (P). All known fwrite \
+ implementations set the stream's error indicator when they \
+ fail due to ENOMEM etc., even though C11 and POSIX.1-2008 do \
+ not require this. */ \
+ fwrite (s, _n, 1, p); \
+ } \
+ } \
+ while (0) \
+ )
+#else
+# 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 ((void *) p, (void const *) (s), _n))
+#endif
+
+#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_ARG , loc
+# define LOCALE_PARAM_PROTO , __locale_t loc
+# define HELPER_LOCALE_ARG , current
#else
-# if ! HAVE_LOCALTIME_R
-# if ! HAVE_TM_GMTOFF
-/* Approximate gmtime_r as best we can in its absence. */
-#define gmtime_r my_gmtime_r
-static struct tm *gmtime_r __P ((const time_t *, struct tm *));
-static struct tm *
-gmtime_r (t, tp)
- const time_t *t;
- struct tm *tp;
+# define LOCALE_PARAM_PROTO
+# define LOCALE_ARG
+# 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 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
+#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)
+
+#if FPRINTFTIME
+static void
+fwrite_lowcase (FILE *fp, const CHAR_T *src, size_t len)
{
- struct tm *l = gmtime (t);
- if (! l)
- return 0;
- *tp = *l;
- return tp;
+ while (len-- > 0)
+ {
+ fputc (TOLOWER ((UCHAR_T) *src, loc), fp);
+ ++src;
+ }
}
-# endif /* ! HAVE_TM_GMTOFF */
-
-/* Approximate localtime_r as best we can in its absence. */
-#define localtime_r my_localtime_r
-static struct tm *localtime_r __P ((const time_t *, struct tm *));
-static struct tm *
-localtime_r (t, tp)
- const time_t *t;
- struct tm *tp;
+
+static void
+fwrite_uppcase (FILE *fp, const CHAR_T *src, size_t len)
{
- struct tm *l = localtime (t);
- if (! l)
- return 0;
- *tp = *l;
- return tp;
+ while (len-- > 0)
+ {
+ fputc (TOUPPER ((UCHAR_T) *src, loc), fp);
+ ++src;
+ }
}
-# endif /* ! HAVE_LOCALTIME_R */
-#endif /* ! defined (_LIBC) */
-
-
-#define add(n, f) \
- do \
- { \
- i += (n); \
- if (i >= maxsize) \
- return 0; \
- else \
- if (p) \
- { \
- f; \
- p += (n); \
- } \
- } while (0)
-#define cpy(n, s) add ((n), memcpy((PTR) p, (PTR) (s), (n)))
+#else
+static CHAR_T *
+memcpy_lowcase (CHAR_T *dest, const CHAR_T *src,
+ size_t len LOCALE_PARAM_PROTO)
+{
+ while (len-- > 0)
+ dest[len] = TOLOWER ((UCHAR_T) src[len], loc);
+ return dest;
+}
+
+static CHAR_T *
+memcpy_uppcase (CHAR_T *dest, const CHAR_T *src,
+ size_t len LOCALE_PARAM_PROTO)
+{
+ while (len-- > 0)
+ dest[len] = TOUPPER ((UCHAR_T) src[len], loc);
+ return dest;
+}
+#endif
+
#if ! HAVE_TM_GMTOFF
/* Yield the difference between *A and *B,
measured in seconds, ignoring leap seconds. */
-static int tm_diff __P ((const struct tm *, const struct tm *));
+# define tm_diff ftime_tm_diff
static int
-tm_diff (a, b)
- const struct tm *a;
- const struct tm *b;
+tm_diff (const struct tm *a, const struct tm *b)
{
- int ay = a->tm_year + TM_YEAR_BASE - 1;
- int by = b->tm_year + TM_YEAR_BASE - 1;
- /* Divide years by 100, rounding towards minus infinity. */
- int ac = ay / 100 - (ay % 100 < 0);
- int bc = by / 100 - (by % 100 < 0);
- int intervening_leap_days =
- ((ay >> 2) - (by >> 2)) - (ac - bc) + ((ac >> 2) - (bc >> 2));
- int years = ay - by;
+ /* 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 = SHR (a->tm_year, 2) + SHR (TM_YEAR_BASE, 2) - ! (a->tm_year & 3);
+ int b4 = SHR (b->tm_year, 2) + SHR (TM_YEAR_BASE, 2) - ! (b->tm_year & 3);
+ int a100 = a4 / 25 - (a4 % 25 < 0);
+ int b100 = b4 / 25 - (b4 % 25 < 0);
+ int a400 = SHR (a100, 2);
+ int b400 = SHR (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));
+ + (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));
+ + (a->tm_min - b->tm_min))
+ + (a->tm_sec - b->tm_sec));
}
#endif /* ! HAVE_TM_GMTOFF */
#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
+__inline__
#endif
static int
-iso_week_days (yday, wday)
- int yday;
- int wday;
+iso_week_days (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);
+ - (yday - wday + ISO_WEEK1_WDAY + big_enough_multiple_of_7) % 7
+ + ISO_WEEK1_WDAY - ISO_WEEK_START_WDAY);
}
-#ifndef _NL_CURRENT
-static char const weekday_name[][10] =
- {
- "Sunday", "Monday", "Tuesday", "Wednesday",
- "Thursday", "Friday", "Saturday"
- };
-static char const month_name[][10] =
- {
- "January", "February", "March", "April", "May", "June",
- "July", "August", "September", "October", "November", "December"
- };
+/* 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. Emacs is a special case for now, but
+ this Emacs-specific code can be removed once Emacs's config.h
+ defines my_strftime. */
+#if defined emacs && !defined my_strftime
+# define my_strftime nstrftime
#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
-strftime (s, maxsize, format, tp)
- char *s;
- size_t maxsize;
- const char *format;
- register const struct tm *tp;
+#if FPRINTFTIME
+# undef my_strftime
+# define my_strftime fprintftime
+#endif
+
+#ifdef my_strftime
+# define extra_args , ut, ns
+# define extra_args_spec , int ut, int ns
+#else
+# if defined 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
+/* We don't have this information in general. */
+# define ut 0
+# define ns 0
+#endif
+
+
+/* Just like my_strftime, below, but with one more parameter, UPCASE,
+ to indicate that the result should be converted to upper case. */
+static size_t
+strftime_case_ (bool upcase, STREAM_OR_CHAR_T *s,
+ STRFTIME_ARG (size_t maxsize)
+ const CHAR_T *format,
+ const struct tm *tp extra_args_spec LOCALE_PARAM_PROTO)
{
+#if defined _LIBC && defined USE_IN_EXTENDED_LOCALE_MODEL
+ struct locale_data *const current = loc->__locales[LC_TIME];
+#endif
+#if FPRINTFTIME
+ size_t maxsize = (size_t) -1;
+#endif
+
int hour12 = tp->tm_hour;
#ifdef _NL_CURRENT
- const char *const a_wkday = _NL_CURRENT (LC_TIME, ABDAY_1 + tp->tm_wday);
- const char *const f_wkday = _NL_CURRENT (LC_TIME, DAY_1 + tp->tm_wday);
- const char *const a_month = _NL_CURRENT (LC_TIME, ABMON_1 + tp->tm_mon);
- const char *const f_month = _NL_CURRENT (LC_TIME, MON_1 + tp->tm_mon);
- const char *const ampm = _NL_CURRENT (LC_TIME,
- hour12 > 11 ? PM_STR : AM_STR);
- size_t aw_len = strlen(a_wkday);
- size_t am_len = strlen(a_month);
- size_t ap_len = strlen (ampm);
-
- const char *alt_digits = _NL_CURRENT (LC_TIME, ALT_DIGITS);
- const char *end_alt_digits = _NL_CURRENT (LC_TIME, ALT_DIGITS + 1);
-#else
- const char *const f_wkday = weekday_name[tp->tm_wday];
- const char *const f_month = month_name[tp->tm_mon];
- const char *const a_wkday = f_wkday;
- const char *const a_month = f_month;
- const char *const ampm = "AMPM" + 2 * (hour12 > 11);
- size_t aw_len = 3;
- size_t am_len = 3;
- size_t ap_len = 2;
-#endif
- size_t wkday_len = strlen (f_wkday);
- size_t month_len = strlen (f_month);
+ /* 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)
+#endif
const char *zone;
- size_t zonelen;
- register size_t i = 0;
- register char *p = s;
- register const char *f;
+ size_t i = 0;
+ STREAM_OR_CHAR_T *p = s;
+ const CHAR_T *f;
+#if DO_MULTIBYTE && !defined COMPILE_WIDE
+ const char *format_end = NULL;
+#endif
+
+#if ! defined _LIBC && ! HAVE_RUN_TZSET_TEST
+ /* Solaris 2.5.x and 2.6 tzset sometimes modify the storage returned
+ by localtime. On such systems, we must either use the tzset and
+ localtime wrappers to work around the bug (which sets
+ HAVE_RUN_TZSET_TEST) or make a copy of the structure. */
+ struct tm copy = *tp;
+ tp = ©
+#endif
- zone = 0;
+ 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 (!(zone && *zone) && tp->tm_isdst >= 0)
- zone = tzname[tp->tm_isdst];
+ 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 (! zone)
- zone = ""; /* POSIX.2 requires the empty string here. */
-
- zonelen = strlen (zone);
if (hour12 > 12)
hour12 -= 12;
else
- if (hour12 == 0) hour12 = 12;
+ if (hour12 == 0)
+ hour12 = 12;
for (f = format; *f != '\0'; ++f)
{
- int pad; /* 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 *subfmt;
- char *bufp;
- char buf[1 + (sizeof (int) < sizeof (time_t)
- ? INT_STRLEN_BOUND (time_t)
- : INT_STRLEN_BOUND (int))];
-
-#if DO_MULTIBYTE
-
- switch (*f)
- {
- case '%':
- break;
-
- case '\a': case '\b': case '\t': case '\n':
- case '\v': case '\f': case '\r':
- case ' ': case '!': case '"': case '#': case '&': case'\'':
- case '(': case ')': case '*': case '+': case ',': case '-':
- case '.': case '/': case '0': case '1': case '2': case '3':
- case '4': case '5': case '6': case '7': case '8': case '9':
- case ':': case ';': case '<': case '=': case '>': case '?':
- case 'A': case 'B': case 'C': case 'D': case 'E': case 'F':
- case 'G': case 'H': case 'I': case 'J': case 'K': case 'L':
- case 'M': case 'N': case 'O': case 'P': case 'Q': case 'R':
- case 'S': case 'T': case 'U': case 'V': case 'W': case 'X':
- case 'Y': case 'Z': case '[': case'\\': case ']': case '^':
- case '_': case 'a': case 'b': case 'c': case 'd': case 'e':
- case 'f': case 'g': case 'h': case 'i': case 'j': case 'k':
- case 'l': case 'm': case 'n': case 'o': case 'p': case 'q':
- case 'r': case 's': case 't': case 'u': case 'v': case 'w':
- case 'x': case 'y': case 'z': case '{': case '|': case '}':
- case '~':
- /* The C Standard requires these 98 characters (plus '%') to
- be in the basic execution character set. None of these
- characters can start a multibyte sequence, so they need
- not be analyzed further. */
- add (1, *p = *f);
- continue;
-
- default:
- /* Copy this multibyte sequence until we reach its end, find
- an error, or come back to the initial shift state. */
- {
- mbstate_t mbstate = mbstate_zero;
- size_t len = 0;
-
- do
- {
- size_t bytes = mbrlen (f + len, (size_t) -1, &mbstate);
-
- if (bytes == 0)
- break;
-
- if (bytes == (size_t) -2 || bytes == (size_t) -1)
- {
- len++;
- break;
- }
-
- len += bytes;
- }
- while (! mbsinit (&mbstate));
-
- cpy (len, f);
- continue;
- }
- }
+ int pad = 0; /* Padding for number ('-', '_', or 0). */
+ int modifier; /* Field modifier ('E', 'O', or 0). */
+ int digits = 0; /* Max digits for numeric format. */
+ int number_value; /* Numeric value to be printed. */
+ unsigned int u_number_value; /* (unsigned int) number_value. */
+ bool negative_number; /* The number is negative. */
+ bool always_output_a_sign; /* +/- should always be output. */
+ int tz_colon_mask; /* Bitmask of where ':' should appear. */
+ const CHAR_T *subfmt;
+ CHAR_T sign_char;
+ CHAR_T *bufp;
+ CHAR_T buf[1
+ + 2 /* for the two colons in a %::z or %:::z time zone */
+ + (sizeof (int) < sizeof (time_t)
+ ? INT_STRLEN_BOUND (time_t)
+ : INT_STRLEN_BOUND (int))];
+ int width = -1;
+ bool to_lowcase = false;
+ bool to_uppcase = upcase;
+ size_t colons;
+ bool change_case = false;
+ 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. */
+ add1 (*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, or they are
- safe for formats, so any non-'%' byte can be copied through. */
- if (*f != '%')
- {
- add (1, *p = *f);
- continue;
- }
+ /* 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_('%'))
+ {
+ add1 (*f);
+ continue;
+ }
#endif /* ! DO_MULTIBYTE */
- /* Check for flags that can modify a number format. */
- ++f;
- switch (*f)
- {
- case '_':
- case '-':
- pad = *f++;
- break;
-
- default:
- pad = 0;
- break;
- }
+ /* 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 = true;
+ continue;
+ case L_('#'):
+ change_case = true;
+ 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 'E':
- case 'O':
- modifier = *f++;
- break;
+ {
+ case L_('E'):
+ case L_('O'):
+ modifier = *f++;
+ break;
- default:
- modifier = 0;
- break;
- }
+ default:
+ modifier = 0;
+ break;
+ }
/* Now do the specified format. */
- switch (*f)
- {
+ format_char = *f;
+ switch (format_char)
+ {
#define DO_NUMBER(d, v) \
- digits = d; number_value = v; goto do_number
+ digits = d; \
+ number_value = v; goto do_number
+#define DO_SIGNED_NUMBER(d, negative, v) \
+ digits = d; \
+ negative_number = negative; \
+ u_number_value = v; goto do_signed_number
+
+ /* The mask is not what you might think.
+ When the ordinal i'th bit is set, insert a colon
+ before the i'th digit of the time zone representation. */
+#define DO_TZ_OFFSET(d, negative, mask, v) \
+ digits = d; \
+ negative_number = negative; \
+ tz_colon_mask = mask; \
+ u_number_value = v; goto do_tz_offset
#define DO_NUMBER_SPACEPAD(d, v) \
- digits = d; number_value = v; goto do_number_spacepad
-
- case '\0': /* GNU extension: % at end of format. */
- --f;
- /* Fall through. */
- case '%':
- if (modifier != 0)
- goto bad_format;
- add (1, *p = *f);
- break;
-
- case 'a':
- if (modifier != 0)
- goto bad_format;
- cpy (aw_len, a_wkday);
- break;
-
- case 'A':
- if (modifier != 0)
- goto bad_format;
- cpy (wkday_len, f_wkday);
- break;
-
- case 'b':
- case 'h': /* POSIX.2 extension. */
- if (modifier != 0)
- goto bad_format;
- cpy (am_len, a_month);
- break;
-
- case 'B':
- if (modifier != 0)
- goto bad_format;
- cpy (month_len, f_month);
- break;
-
- case 'c':
- if (modifier == 'O')
- goto bad_format;
+ digits = d; \
+ number_value = v; goto do_number_spacepad
+
+ case L_('%'):
+ if (modifier != 0)
+ goto bad_format;
+ add1 (*f);
+ break;
+
+ case L_('a'):
+ if (modifier != 0)
+ goto bad_format;
+ if (change_case)
+ {
+ to_uppcase = true;
+ to_lowcase = false;
+ }
#ifdef _NL_CURRENT
- if (! (modifier == 'E'
- && *(subfmt = _NL_CURRENT (LC_TIME, ERA_D_T_FMT)) != '\0'))
- subfmt = _NL_CURRENT (LC_TIME, D_T_FMT);
+ cpy (aw_len, a_wkday);
+ break;
#else
- subfmt = "%a %b %e %H:%M:%S %Z %Y";
+ goto underlying_strftime;
#endif
- subformat:
- {
- size_t len = strftime (p, maxsize - i, subfmt, tp);
- if (len == 0 && *subfmt)
- return 0;
- add (len, ;);
- }
- break;
-
- case 'C': /* POSIX.2 extension. */
- if (modifier == 'O')
- goto bad_format;
+ case 'A':
+ if (modifier != 0)
+ goto bad_format;
+ if (change_case)
+ {
+ to_uppcase = true;
+ to_lowcase = false;
+ }
#ifdef _NL_CURRENT
- /* XXX %EC is not implemented yet. */
+ cpy (STRLEN (f_wkday), f_wkday);
+ break;
+#else
+ goto underlying_strftime;
#endif
- {
- int year = tp->tm_year + TM_YEAR_BASE;
- DO_NUMBER (1, year / 100 - (year % 100 < 0));
- }
- case 'x':
- if (modifier == 'O')
- goto bad_format;
+ case L_('b'):
+ case L_('h'):
+ if (change_case)
+ {
+ to_uppcase = true;
+ to_lowcase = false;
+ }
+ if (modifier != 0)
+ goto bad_format;
#ifdef _NL_CURRENT
- if (! (modifier == 'E'
- && *(subfmt = _NL_CURRENT (LC_TIME, ERA_D_FMT)) != '\0'))
- subfmt = _NL_CURRENT (LC_TIME, D_FMT);
- goto subformat;
+ cpy (am_len, a_month);
+ break;
+#else
+ goto underlying_strftime;
#endif
- /* Fall through. */
- case 'D': /* POSIX.2 extension. */
- if (modifier != 0)
- goto bad_format;
- subfmt = "%m/%d/%y";
- goto subformat;
-
- case 'd':
- if (modifier == 'E')
- goto bad_format;
-
- DO_NUMBER (2, tp->tm_mday);
-
- case 'e': /* POSIX.2 extension. */
- if (modifier == '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. */
- pad = '_';
-
- do_number:
- /* Format the number according to the MODIFIER flag. */
+ case L_('B'):
+ if (modifier != 0)
+ goto bad_format;
+ if (change_case)
+ {
+ to_uppcase = true;
+ to_lowcase = false;
+ }
#ifdef _NL_CURRENT
- if (modifier == 'O')
- {
- /* ALT_DIGITS is the first entry in an array with
- alternative digit symbols. We have to find string
- number NUMBER_VALUE, but must not look beyond
- END_ALT_DIGITS. */
- int run = number_value;
- const char *cp = alt_digits;
-
- while (run > 0 && cp < end_alt_digits)
- cp = strchr (cp, '\0') + 1;
-
- if (cp < end_alt_digits)
- {
- size_t digitlen = strlen (cp);
- if (digitlen != 0)
- {
- cpy (digitlen, cp);
- break;
- }
- }
- }
+ cpy (STRLEN (f_month), f_month);
+ break;
+#else
+ goto underlying_strftime;
#endif
- {
- unsigned int u = number_value;
-
- bufp = buf + sizeof (buf);
- negative_number = number_value < 0;
-
- if (negative_number)
- u = -u;
- do
- *--bufp = u % 10 + '0';
- while ((u /= 10) != 0);
- }
-
- do_number_sign_and_padding:
- if (negative_number)
- *--bufp = '-';
-
- if (pad != '-')
- {
- int padding = digits - (buf + sizeof (buf) - bufp);
-
- if (pad == '_')
- {
- while (0 < padding--)
- *--bufp = ' ';
- }
- else
- {
- bufp += negative_number;
- while (0 < padding--)
- *--bufp = '0';
- if (negative_number)
- *--bufp = '-';
- }
- }
-
- cpy (buf + sizeof (buf) - bufp, bufp);
- break;
-
-
- case 'H':
- if (modifier == 'E')
- goto bad_format;
-
- DO_NUMBER (2, tp->tm_hour);
-
- case 'I':
- if (modifier == 'E')
- goto bad_format;
-
- DO_NUMBER (2, hour12);
-
- case 'k': /* GNU extension. */
- if (modifier == 'E')
- goto bad_format;
-
- DO_NUMBER_SPACEPAD (2, tp->tm_hour);
-
- case 'l': /* GNU extension. */
- if (modifier == 'E')
- goto bad_format;
-
- DO_NUMBER_SPACEPAD (2, hour12);
-
- case 'j':
- if (modifier == 'E')
- goto bad_format;
-
- DO_NUMBER (3, 1 + tp->tm_yday);
-
- case 'M':
- if (modifier == 'E')
- goto bad_format;
+ 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
+ goto underlying_strftime;
+#endif
- DO_NUMBER (2, tp->tm_min);
+ subformat:
+ {
+ size_t len = strftime_case_ (to_uppcase,
+ NULL, STRFTIME_ARG ((size_t) -1)
+ subfmt,
+ tp extra_args LOCALE_ARG);
+ add (len, strftime_case_ (to_uppcase, p,
+ STRFTIME_ARG (maxsize - i)
+ subfmt,
+ tp extra_args LOCALE_ARG));
+ }
+ break;
+
+#if !(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[5];
+ 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
- case 'm':
- if (modifier == 'E')
- goto bad_format;
+ /* The space helps distinguish strftime failure from empty
+ output. */
+ *u++ = ' ';
+ *u++ = '%';
+ if (modifier != 0)
+ *u++ = modifier;
+ *u++ = format_char;
+ *u = '\0';
+ len = strftime (ubuf, sizeof ubuf, ufmt, tp);
+ if (len != 0)
+ cpy (len - 1, ubuf + 1);
+ }
+ break;
+#endif
- DO_NUMBER (2, tp->tm_mon + 1);
+ 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
+ goto underlying_strftime;
+#endif
+ }
- case 'n': /* POSIX.2 extension. */
- add (1, *p = '\n');
- break;
+ {
+ int century = tp->tm_year / 100 + TM_YEAR_BASE / 100;
+ century -= tp->tm_year % 100 < 0 && 0 < century;
+ DO_SIGNED_NUMBER (2, tp->tm_year < - TM_YEAR_BASE, century);
+ }
- case 'p':
- cpy (ap_len, ampm);
- break;
+ 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
+ goto underlying_strftime;
+#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 (or U_NUMBER_VALUE)
+ and then jump to one of these labels. */
+
+ do_tz_offset:
+ always_output_a_sign = true;
+ goto do_number_body;
+
+ do_number_spacepad:
+ /* Force '_' flag unless overridden by '0' or '-' flag. */
+ if (pad != L_('0') && pad != L_('-'))
+ pad = L_('_');
+
+ do_number:
+ /* Format NUMBER_VALUE according to the MODIFIER flag. */
+ negative_number = number_value < 0;
+ u_number_value = number_value;
+
+ do_signed_number:
+ always_output_a_sign = false;
+ tz_colon_mask = 0;
+
+ do_number_body:
+ /* Format U_NUMBER_VALUE according to the MODIFIER flag.
+ NEGATIVE_NUMBER is nonzero if the original number was
+ negative; in this case it was converted directly to
+ unsigned int (i.e., modulo (UINT_MAX + 1)) without
+ negating it. */
+ if (modifier == L_('O') && !negative_number)
+ {
+#ifdef _NL_CURRENT
+ /* Get the locale specific alternate representation of
+ the number. If none exist NULL is returned. */
+ const CHAR_T *cp = nl_get_alt_digit (u_number_value
+ HELPER_LOCALE_ARG);
+
+ if (cp != NULL)
+ {
+ size_t digitlen = STRLEN (cp);
+ if (digitlen != 0)
+ {
+ cpy (digitlen, cp);
+ break;
+ }
+ }
+#else
+ goto underlying_strftime;
+#endif
+ }
+
+ bufp = buf + sizeof (buf) / sizeof (buf[0]);
+
+ if (negative_number)
+ u_number_value = - u_number_value;
+
+ do
+ {
+ if (tz_colon_mask & 1)
+ *--bufp = ':';
+ tz_colon_mask >>= 1;
+ *--bufp = u_number_value % 10 + L_('0');
+ u_number_value /= 10;
+ }
+ while (u_number_value != 0 || tz_colon_mask != 0);
+
+ do_number_sign_and_padding:
+ if (digits < width)
+ digits = width;
+
+ sign_char = (negative_number ? L_('-')
+ : always_output_a_sign ? L_('+')
+ : 0);
+
+ if (pad == L_('-'))
+ {
+ if (sign_char)
+ add1 (sign_char);
+ }
+ else
+ {
+ int padding = digits - (buf + (sizeof (buf) / sizeof (buf[0]))
+ - bufp) - !!sign_char;
+
+ 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;
+ if (sign_char)
+ add1 (sign_char);
+ }
+ else
+ {
+ if ((size_t) digits >= maxsize - i)
+ return 0;
+
+ if (sign_char)
+ add1 (sign_char);
+
+ if (p)
+ memset_zero (p, padding);
+ i += padding;
+ width = 0;
+ }
+ }
+ else
+ {
+ if (sign_char)
+ add1 (sign_char);
+ }
+ }
+
+ 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_SIGNED_NUMBER (3, tp->tm_yday < -1, tp->tm_yday + 1U);
+
+ 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_SIGNED_NUMBER (2, tp->tm_mon < -1, tp->tm_mon + 1U);
+
+#ifndef _LIBC
+ case L_('N'): /* GNU extension. */
+ if (modifier == L_('E'))
+ goto bad_format;
+
+ number_value = ns;
+ if (width == -1)
+ width = 9;
+ else
+ {
+ /* Take an explicit width less than 9 as a precision. */
+ int j;
+ for (j = width; j < 9; j++)
+ number_value /= 10;
+ }
+
+ DO_NUMBER (width, number_value);
+#endif
- case 'R': /* GNU extension. */
- subfmt = "%H:%M";
- goto subformat;
+ case L_('n'):
+ add1 (L_('\n'));
+ break;
- case 'r': /* POSIX.2 extension. */
+ case L_('P'):
+ to_lowcase = true;
+#ifndef _NL_CURRENT
+ format_char = L_('p');
+#endif
+ /* FALLTHROUGH */
+
+ case L_('p'):
+ if (change_case)
+ {
+ to_uppcase = false;
+ to_lowcase = true;
+ }
#ifdef _NL_CURRENT
- subfmt = _NL_CURRENT (LC_TIME, T_FMT_AMPM);
+ cpy (ap_len, ampm);
+ break;
#else
- subfmt = "%I:%M:%S %p";
+ goto underlying_strftime;
#endif
- goto subformat;
-
- case 'S':
- if (modifier == 'E')
- return 0;
- DO_NUMBER (2, tp->tm_sec);
+ case L_('R'):
+ subfmt = L_("%H:%M");
+ goto subformat;
- case 's': /* GNU extension. */
- {
- struct tm ltm;
- time_t t;
+ case L_('r'):
+#ifdef _NL_CURRENT
+ if (*(subfmt = (const CHAR_T *) _NL_CURRENT (LC_TIME,
+ NLW(T_FMT_AMPM)))
+ == L_('\0'))
+ subfmt = L_("%I:%M:%S %p");
+ goto subformat;
+#else
+ goto underlying_strftime;
+#endif
- ltm = *tp;
- t = mktime (<m);
+ case L_('S'):
+ if (modifier == L_('E'))
+ goto bad_format;
- /* Generate string value for T using time_t arithmetic;
- this works even if sizeof (long) < sizeof (time_t). */
+ DO_NUMBER (2, tp->tm_sec);
- bufp = buf + sizeof (buf);
- negative_number = t < 0;
+ case L_('s'): /* GNU extension. */
+ {
+ struct tm ltm;
+ time_t t;
- do
- {
- int d = t % 10;
- t /= 10;
+ ltm = *tp;
+ t = mktime (<m);
- if (negative_number)
- {
- d = -d;
+ /* Generate string value for T using time_t arithmetic;
+ this works even if sizeof (long) < sizeof (time_t). */
- /* Adjust if division truncates to minus infinity. */
- if (0 < -1 % 10 && d < 0)
- {
- t++;
- d += 10;
- }
- }
+ bufp = buf + sizeof (buf) / sizeof (buf[0]);
+ negative_number = t < 0;
- *--bufp = d + '0';
- }
- while (t != 0);
+ do
+ {
+ int d = t % 10;
+ t /= 10;
+ *--bufp = (negative_number ? -d : d) + L_('0');
+ }
+ while (t != 0);
- digits = 1;
- goto do_number_sign_and_padding;
- }
+ digits = 1;
+ always_output_a_sign = false;
+ goto do_number_sign_and_padding;
+ }
- case 'X':
- if (modifier == 'O')
- goto bad_format;
+ case L_('X'):
+ if (modifier == L_('O'))
+ goto bad_format;
#ifdef _NL_CURRENT
- if (! (modifier == 'E'
- && *(subfmt = _NL_CURRENT (LC_TIME, ERA_T_FMT)) != '\0'))
- subfmt = _NL_CURRENT (LC_TIME, T_FMT);
- goto subformat;
-#endif
- /* Fall through. */
- case 'T': /* POSIX.2 extension. */
- subfmt = "%H:%M:%S";
- goto subformat;
-
- case 't': /* POSIX.2 extension. */
- add (1, *p = '\t');
- break;
-
- case 'u': /* POSIX.2 extension. */
- DO_NUMBER (1, (tp->tm_wday - 1 + 7) % 7 + 1);
-
- case 'U':
- if (modifier == 'E')
- goto bad_format;
-
- DO_NUMBER (2, (tp->tm_yday - tp->tm_wday + 7) / 7);
-
- case 'V':
- case 'g': /* GNU extension. */
- case 'G': /* GNU extension. */
- if (modifier == '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 'g':
- DO_NUMBER (2, (year % 100 + 100) % 100);
-
- case 'G':
- DO_NUMBER (1, year);
-
- default:
- DO_NUMBER (2, days / 7 + 1);
- }
- }
-
- case 'W':
- if (modifier == 'E')
- goto bad_format;
-
- DO_NUMBER (2, (tp->tm_yday - (tp->tm_wday - 1 + 7) % 7 + 7) / 7);
-
- case 'w':
- if (modifier == 'E')
- goto bad_format;
-
- DO_NUMBER (1, tp->tm_wday);
-
- case 'Y':
-#ifdef _NL_CURRENT
- if (modifier == 'E'
- && *(subfmt = _NL_CURRENT (LC_TIME, ERA_YEAR)) != '\0')
- goto subformat;
+ 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
+ goto underlying_strftime;
#endif
- if (modifier == 'O')
- goto bad_format;
- else
- DO_NUMBER (1, tp->tm_year + TM_YEAR_BASE);
-
- case 'y':
-#ifdef _NL_CURRENT
- /* XXX %Ey is not implemented yet. */
+ case L_('T'):
+ subfmt = L_("%H:%M:%S");
+ goto subformat;
+
+ case L_('t'):
+ add1 (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;
+ {
+ /* YEAR is a leap year if and only if (tp->tm_year + TM_YEAR_BASE)
+ is a leap year, except that YEAR and YEAR - 1 both work
+ correctly even when (tp->tm_year + TM_YEAR_BASE) would
+ overflow. */
+ int year = (tp->tm_year
+ + (tp->tm_year < 0
+ ? TM_YEAR_BASE % 400
+ : TM_YEAR_BASE % 400 - 400));
+ int year_adjust = 0;
+ int days = iso_week_days (tp->tm_yday, tp->tm_wday);
+
+ if (days < 0)
+ {
+ /* This ISO week belongs to the previous year. */
+ year_adjust = -1;
+ days = iso_week_days (tp->tm_yday + (365 + __isleap (year - 1)),
+ 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_adjust = 1;
+ days = d;
+ }
+ }
+
+ switch (*f)
+ {
+ case L_('g'):
+ {
+ int yy = (tp->tm_year % 100 + year_adjust) % 100;
+ DO_NUMBER (2, (0 <= yy
+ ? yy
+ : tp->tm_year < -TM_YEAR_BASE - year_adjust
+ ? -yy
+ : yy + 100));
+ }
+
+ case L_('G'):
+ DO_SIGNED_NUMBER (4, tp->tm_year < -TM_YEAR_BASE - year_adjust,
+ (tp->tm_year + (unsigned int) TM_YEAR_BASE
+ + year_adjust));
+
+ 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
+ goto underlying_strftime;
#endif
- DO_NUMBER (2, (tp->tm_year % 100 + 100) % 100);
-
- case 'Z':
- cpy(zonelen, zone);
- break;
-
- case 'z': /* GNU extension. */
- if (tp->tm_isdst < 0)
- break;
+ }
+ if (modifier == L_('O'))
+ goto bad_format;
+ else
+ DO_SIGNED_NUMBER (4, tp->tm_year < -TM_YEAR_BASE,
+ tp->tm_year + (unsigned int) 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
+ goto underlying_strftime;
+#endif
+ }
+
+ {
+ int yy = tp->tm_year % 100;
+ if (yy < 0)
+ yy = tp->tm_year < - TM_YEAR_BASE ? -yy : yy + 100;
+ DO_NUMBER (2, yy);
+ }
+
+ case L_('Z'):
+ if (change_case)
+ {
+ to_uppcase = false;
+ to_lowcase = true;
+ }
- {
- int diff;
+#if HAVE_TZNAME
+ /* The tzset() call might have changed the value. */
+ if (!(zone && *zone) && tp->tm_isdst >= 0)
+ zone = tzname[tp->tm_isdst != 0];
+#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_(':'):
+ /* :, ::, and ::: are valid only just before 'z'.
+ :::: etc. are rejected later. */
+ for (colons = 1; f[colons] == L_(':'); colons++)
+ continue;
+ if (f[colons] != L_('z'))
+ goto bad_format;
+ f += colons;
+ goto do_z_conversion;
+
+ case L_('z'):
+ colons = 0;
+
+ do_z_conversion:
+ if (tp->tm_isdst < 0)
+ break;
+
+ {
+ int diff;
+ int hour_diff;
+ int min_diff;
+ int sec_diff;
#if HAVE_TM_GMTOFF
- diff = tp->tm_gmtoff;
+ diff = tp->tm_gmtoff;
#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;
- localtime_r (<, &tm);
-
- if ((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 (<, >m))
- break;
-
- diff = tm_diff (<m, >m);
-#endif
-
- if (diff < 0)
- {
- add (1, *p = '-');
- diff = -diff;
- }
- else
- add (1, *p = '+');
-
- diff /= 60;
- DO_NUMBER (4, (diff / 60) * 100 + diff % 60);
- }
-
- 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 = 2; f[1 - flen] != '%'; flen++)
- continue;
- cpy (flen, &f[1 - flen]);
- }
- break;
- }
+ 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 (! __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 (! __gmtime_r (<, >m))
+ break;
+
+ diff = tm_diff (<m, >m);
+ }
+#endif
+
+ hour_diff = diff / 60 / 60;
+ min_diff = diff / 60 % 60;
+ sec_diff = diff % 60;
+
+ switch (colons)
+ {
+ case 0: /* +hhmm */
+ DO_TZ_OFFSET (5, diff < 0, 0, hour_diff * 100 + min_diff);
+
+ case 1: tz_hh_mm: /* +hh:mm */
+ DO_TZ_OFFSET (6, diff < 0, 04, hour_diff * 100 + min_diff);
+
+ case 2: tz_hh_mm_ss: /* +hh:mm:ss */
+ DO_TZ_OFFSET (9, diff < 0, 024,
+ hour_diff * 10000 + min_diff * 100 + sec_diff);
+
+ case 3: /* +hh if possible, else +hh:mm, else +hh:mm:ss */
+ if (sec_diff != 0)
+ goto tz_hh_mm_ss;
+ if (min_diff != 0)
+ goto tz_hh_mm;
+ DO_TZ_OFFSET (3, diff < 0, 0, hour_diff);
+
+ default:
+ goto bad_format;
+ }
+ }
+
+ 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)
- *p = '\0';
+#if ! FPRINTFTIME
+ if (p && maxsize != 0)
+ *p = L_('\0');
+#endif
+
return i;
}
+
+/* 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) -1 for MAXSIZE. */
+size_t
+my_strftime (STREAM_OR_CHAR_T *s, STRFTIME_ARG (size_t maxsize)
+ const CHAR_T *format,
+ const struct tm *tp extra_args_spec LOCALE_PARAM_PROTO)
+{
+ return strftime_case_ (false, s, STRFTIME_ARG (maxsize)
+ format, tp extra_args LOCALE_ARG);
+}
+
+#if defined _LIBC && ! FPRINTFTIME
+libc_hidden_def (my_strftime)
+#endif
+
+
+#if defined emacs && ! FPRINTFTIME
+/* 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 (char *s, size_t maxsize, const char *format,
+ const struct tm *tp, int ut)
+{
+ return my_strftime (s, maxsize, format, tp, ut, 0);
+}
+#endif
projects / gnulib.git / blobdiff