-/* Copyright (C) 1991, 92, 93, 94, 95, 96 Free Software Foundation, Inc.
-This file is part of the GNU C Library.
+/* Copyright (C) 1991-2014 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
-The GNU C Library is free software; you can redistribute it and/or
-modify it under the terms of the GNU Library General Public License as
-published by the Free Software Foundation; either version 2 of the
-License, or (at your option) any later version.
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
-The GNU C Library is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-Library General Public License for more details.
+ 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
+ Lesser General Public License for more details.
-You should have received a copy of the GNU Library General Public
-License along with the GNU C Library; see the file COPYING.LIB. If
-not, write to the Free Software Foundation, Inc., 675 Mass Ave,
-Cambridge, MA 02139, USA. */
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
+#include <time.h>
+#include <locale/localeinfo.h>
-#ifdef _LIBC
-# define HAVE_LIMITS_H 1
-# define HAVE_MBLEN 1
-# define HAVE_TM_ZONE 1
-# define STDC_HEADERS 1
-# include <ansidecl.h>
-# include "../locale/localeinfo.h"
-#endif
-#include <stdio.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_MBLEN
-# include <ctype.h>
-#endif
-
-#if HAVE_LIMITS_H
-# include <limits.h>
-#endif
-
-#if STDC_HEADERS
-# include <stddef.h>
-# include <stdlib.h>
-# include <string.h>
-#else
-# define memcpy(d, s, n) bcopy (s, d, n)
-#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
-
-static unsigned int week __P((const struct tm *const, int));
-
-
-#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)))
-
-#ifdef _LIBC
-#define fmt(n, args) add((n), if (sprintf args != (n)) return 0)
-#else
-#define fmt(n, args) add((n), sprintf args; if (strlen (p) != (n)) return 0)
-#endif
-
-
-
-/* Return the week in the year specified by TP,
- with weeks starting on STARTING_DAY. */
-#ifdef __GNUC__
-inline
-#endif
-static unsigned int
-week (tp, starting_day)
- const struct tm *const tp;
- int starting_day;
-{
- int wday, dl;
-
- wday = tp->tm_wday - starting_day;
- if (wday < 0)
- wday += 7;
-
- /* Set DL to the day in the year of the last day of the week previous to the
- one containing the day specified in TP. If DL is negative or zero, the
- day specified in TP is in the first week of the year. Otherwise,
- calculate the number of complete weeks before our week (DL / 7) and
- add any partial week at the start of the year (DL % 7). */
- dl = tp->tm_yday - wday;
- return dl <= 0 ? 0 : ((dl / 7) + ((dl % 7) == 0 ? 0 : 1));
-}
-
-#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"
- };
-#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;
+strftime (char *s, size_t maxsize, const char *format, const struct tm *tp)
{
- 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);
-#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);
- const unsigned int y_week0 = week (tp, 0);
- const unsigned int y_week1 = week (tp, 1);
- const char *zone;
- size_t zonelen;
- register size_t i = 0;
- register char *p = s;
- register const char *f;
- char number_fmt[5];
-
- /* Initialize the buffer we will use for the sprintf format for numbers. */
- number_fmt[0] = '%';
-
- zone = 0;
-#if HAVE_TM_ZONE
- zone = (const char *) tp->tm_zone;
-#endif
-#if HAVE_TZNAME
- if (!(zone && *zone) && tp->tm_isdst >= 0)
- zone = tzname[tp->tm_isdst];
-#endif
- if (!(zone && *zone))
- zone = "???";
-
- zonelen = strlen (zone);
-
- if (hour12 > 12)
- hour12 -= 12;
- else
- if (hour12 == 0) hour12 = 12;
-
- for (f = format; *f != '\0'; ++f)
- {
- enum { pad_zero, pad_space, pad_none } pad; /* Padding for number. */
- unsigned int maxdigits; /* Max digits for numeric format. */
- unsigned int number_value; /* Numeric value to be printed. */
- const char *subfmt;
-
-#if HAVE_MBLEN
- if (!isascii(*f))
- {
- /* Non-ASCII, may be a multibyte. */
- int len = mblen(f, strlen(f));
- if (len > 0)
- {
- cpy(len, f);
- continue;
- }
- }
-#endif
-
- if (*f != '%')
- {
- add(1, *p = *f);
- continue;
- }
-
- /* Check for flags that can modify a number format. */
- ++f;
- switch (*f)
- {
- case '_':
- pad = pad_space;
- ++f;
- break;
- case '-':
- pad = pad_none;
- ++f;
- break;
- default:
- pad = pad_zero;
- break;
- }
-
- /* Now do the specified format. */
- switch (*f)
- {
- case '\0':
- case '%':
- add(1, *p = *f);
- break;
-
- case 'a':
- cpy(aw_len, a_wkday);
- break;
-
- case 'A':
- cpy(wkday_len, f_wkday);
- break;
-
- case 'b':
- case 'h': /* GNU extension. */
- cpy(am_len, a_month);
- break;
-
- case 'B':
- cpy(month_len, f_month);
- break;
-
- case 'c':
-#ifdef _NL_CURRENT
- subfmt = _NL_CURRENT (LC_TIME, D_T_FMT);
-#else
- subfmt = "%a %b %d %H:%M:%S %Z %Y";
-#endif
- subformat:
- {
- size_t len = strftime (p, maxsize - i, subfmt, tp);
- if (len == 0 && *subfmt)
- return 0;
- add(len, );
- }
- break;
-
-#define DO_NUMBER(digits, value) \
- maxdigits = digits; number_value = value; goto do_number
-#define DO_NUMBER_NOPAD(digits, value) \
- maxdigits = digits; number_value = value; goto do_number_nopad
-
- case 'C':
- DO_NUMBER (2, (1900 + tp->tm_year) / 100);
-
- case 'x':
-#ifdef _NL_CURRENT
- subfmt = _NL_CURRENT (LC_TIME, D_FMT);
- goto subformat;
-#endif
- /* Fall through. */
- case 'D': /* GNU extension. */
- subfmt = "%m/%d/%y";
- goto subformat;
-
- case 'd':
- DO_NUMBER (2, tp->tm_mday);
-
- case 'e': /* GNU extension: %d, but blank-padded. */
- DO_NUMBER_NOPAD (2, tp->tm_mday);
-
- /* All numeric formats set MAXDIGITS and NUMBER_VALUE and then
- jump to one of these two labels. */
-
- do_number_nopad:
- /* Force `-' flag. */
- pad = pad_none;
-
- do_number:
- {
- /* Format the number according to the PAD flag. */
-
- register char *nf = &number_fmt[1];
- int printed;
-
- switch (pad)
- {
- case pad_zero:
- *nf++ = '0';
- case pad_space:
- *nf++ = '0' + maxdigits;
- case pad_none:
- *nf++ = 'u';
- *nf = '\0';
- }
-
-#ifdef _LIBC
- add (maxdigits, printed = sprintf (p, number_fmt, number_value));
-#else
- add (sprintf (p, number_fmt, number_value);
- printed = strlen (p));
-#endif
-
- break;
- }
-
-
- case 'H':
- DO_NUMBER (2, tp->tm_hour);
-
- case 'I':
- DO_NUMBER (2, hour12);
-
- case 'k': /* GNU extension. */
- DO_NUMBER_NOPAD (2, tp->tm_hour);
-
- case 'l': /* GNU extension. */
- DO_NUMBER_NOPAD (2, hour12);
-
- case 'j':
- DO_NUMBER (3, 1 + tp->tm_yday);
-
- case 'M':
- DO_NUMBER (2, tp->tm_min);
-
- case 'm':
- DO_NUMBER (2, tp->tm_mon + 1);
-
- case 'n': /* GNU extension. */
- add (1, *p = '\n');
- break;
-
- case 'p':
- cpy(ap_len, ampm);
- break;
-
- case 'R': /* GNU extension. */
- subfmt = "%H:%M";
- goto subformat;
-
- case 'r': /* GNU extension. */
- subfmt = "%I:%M:%S %p";
- goto subformat;
-
- case 'S':
- DO_NUMBER (2, tp->tm_sec);
-
- case 'X':
-#ifdef _NL_CURRENT
- subfmt = _NL_CURRENT (LC_TIME, T_FMT);
- goto subformat;
-#endif
- /* Fall through. */
- case 'T': /* GNU extenstion. */
- subfmt = "%H:%M:%S";
- goto subformat;
-
- case 't': /* GNU extenstion. */
- add (1, *p = '\t');
- break;
-
- case 'U':
- DO_NUMBER (2, y_week0);
-
- case 'W':
- DO_NUMBER (2, y_week1);
-
- case 'w':
- DO_NUMBER (2, tp->tm_wday);
-
- case 'Y':
- DO_NUMBER (4, 1900 + tp->tm_year);
-
- case 'y':
- DO_NUMBER (2, tp->tm_year % 100);
-
- case 'Z':
- cpy(zonelen, zone);
- break;
-
- default:
- /* Bad format. */
- break;
- }
- }
-
- if (p)
- *p = '\0';
- return i;
+ return __strftime_l (s, maxsize, format, tp, _NL_CURRENT_LOCALE);
}
+libc_hidden_def (strftime)
projects / platform / upstream / glibc.git / blobdiff