-/* Copyright (C) 1991, 92, 93, 94, 95, 96 Free Software Foundation, Inc.
-This file is part of the GNU C Library.
+/* Copyright (C) 1991, 92, 93, 94, 95, 96, 97 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 Library General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
-The GNU C Library is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-Library General Public License for more details.
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
-You should have received a copy of the GNU Library General Public
-License along with the GNU C Library; see the file COPYING.LIB. If
-not, write to the Free Software Foundation, Inc., 675 Mass Ave,
-Cambridge, MA 02139, USA. */
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
#ifdef HAVE_CONFIG_H
# include <config.h>
# 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 <ansidecl.h>
# 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 <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
# include <stdlib.h>
# include <string.h>
#else
-# define memcpy(d, s, n) bcopy (s, d, n)
+# ifndef HAVE_MEMCPY
+# define memcpy(d, s, n) bcopy ((s), (d), (n))
+# endif
#endif
#ifndef __P
-#if defined (__GNUC__) || (defined (__STDC__) && __STDC__)
-#define __P(args) args
-#else
-#define __P(args) ()
-#endif /* GCC. */
+# 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
+# ifdef __STDC__
+# define PTR void *
+# else
+# define PTR char *
+# endif
#endif
#ifndef CHAR_BIT
-#define CHAR_BIT 8
+# define CHAR_BIT 8
+#endif
+
+#ifndef NULL
+# define NULL 0
#endif
#define TYPE_SIGNED(t) ((t) -1 < 0)
#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
#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
+# undef gmtime_r
+# define gmtime_r my_gmtime_r
static struct tm *gmtime_r __P ((const time_t *, struct tm *));
static struct tm *
gmtime_r (t, tp)
# endif /* ! HAVE_TM_GMTOFF */
/* Approximate localtime_r as best we can in its absence. */
-#define localtime_r my_localtime_r
+# undef localtime_r
+# define localtime_r my_ftime_localtime_r
static struct tm *localtime_r __P ((const time_t *, struct tm *));
static struct tm *
localtime_r (t, tp)
#endif /* ! defined (_LIBC) */
-#define add(n, f) \
+#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 spaces[16] = /* " " */
+ { ' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ' };
+static const char zeroes[16] = /* "0000000000000000" */
+ { '0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0' };
+
+# define memset_space(P, Len) \
+ do { \
+ int _len = (Len); \
+ \
+ do \
+ { \
+ int _this = _len > 16 ? 16 : _len; \
+ memcpy ((P), spaces, _this); \
+ (P) += _this; \
+ _len -= _this; \
+ } \
+ while (_len > 0); \
+ } while (0)
+
+# define memset_zero(P, Len) \
+ do { \
+ int _len = (Len); \
+ \
+ do \
+ { \
+ int _this = _len > 16 ? 16 : _len; \
+ memcpy ((P), zeroes, _this); \
+ (P) += _this; \
+ _len -= _this; \
+ } \
+ while (_len > 0); \
+ } while (0)
+#else
+# define memset_space(P, Len) (memset ((P), ' ', (Len)), (P) += (Len))
+# define memset_zero(P, Len) (memset ((P), '0', (Len)), (P) += (Len))
+#endif
+
+#define add(n, f) \
do \
{ \
- i += (n); \
- if (i >= maxsize) \
+ int _n = (n); \
+ int _delta = width - _n; \
+ int _incr = _n + (_delta > 0 ? _delta : 0); \
+ if (i + _incr >= maxsize) \
return 0; \
- else \
- if (p) \
- { \
- f; \
- p += (n); \
- } \
+ if (p) \
+ { \
+ if (_delta > 0) \
+ { \
+ if (pad == '0') \
+ memset_zero (p, _delta); \
+ else \
+ memset_space (p, _delta); \
+ } \
+ f; \
+ p += _n; \
+ } \
+ i += _incr; \
} while (0)
-#define cpy(n, s) add ((n), memcpy((PTR) p, (PTR) (s), (n)))
+
+#define cpy(n, s) \
+ add ((n), \
+ if (to_lowcase) \
+ memcpy_lowcase (p, (s), _n); \
+ else if (to_uppcase) \
+ memcpy_uppcase (p, (s), _n); \
+ else \
+ memcpy ((PTR) p, (PTR) (s), _n))
+
+
+
+#ifdef _LIBC
+# define TOUPPER(Ch) toupper (Ch)
+# define TOLOWER(Ch) tolower (Ch)
+#else
+# define TOUPPER(Ch) (islower (Ch) ? toupper (Ch) : (Ch))
+# define TOLOWER(Ch) (isupper (Ch) ? tolower (Ch) : (Ch))
+#endif
+/* 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) - '0' <= 9)
+
+static char *memcpy_lowcase __P ((char *dest, const char *src, size_t len));
+
+static char *
+memcpy_lowcase (dest, src, len)
+ char *dest;
+ const char *src;
+ size_t len;
+{
+ while (len-- > 0)
+ dest[len] = TOLOWER ((unsigned char) src[len]);
+ return dest;
+}
+
+static char *memcpy_uppcase __P ((char *dest, const char *src, size_t len));
+
+static char *
+memcpy_uppcase (dest, src, len)
+ char *dest;
+ const char *src;
+ size_t len;
+{
+ while (len-- > 0)
+ dest[len] = TOUPPER ((unsigned char) src[len]);
+ return dest;
+}
+
#if ! HAVE_TM_GMTOFF
/* Yield the difference between *A and *B,
measured in seconds, ignoring leap seconds. */
+# define tm_diff ftime_tm_diff
static int tm_diff __P ((const struct tm *, const struct tm *));
static int
tm_diff (a, b)
#define YDAY_MINIMUM (-366)
static int iso_week_days __P ((int, int));
#ifdef __GNUC__
-inline
+__inline__
#endif
static int
iso_week_days (yday, wday)
}
-#ifndef _NL_CURRENT
+#if !(defined _NL_CURRENT || HAVE_STRFTIME)
static char const weekday_name[][10] =
{
"Sunday", "Monday", "Tuesday", "Wednesday",
};
#endif
+
+#ifdef emacs
+# define my_strftime emacs_strftime
+ /* Emacs 20.2 uses `-Dstrftime=emacs_strftime' when compiling,
+ because that's how strftime used to be configured.
+ Undo this, since it gets in the way of accessing the underlying strftime,
+ which is needed for things like %Ec in Solaris.
+ The following two lines can be removed once Emacs stops compiling with
+ `-Dstrftime=emacs_strftime'. */
+# undef strftime
+size_t strftime __P ((char *, size_t, const char *, const struct tm *));
+#else
+# define my_strftime strftime
+#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 *));
+ size_t
+ my_strftime (s, maxsize, format, tp)
+ char *s;
+ size_t maxsize;
+ const char *format;
+ const struct tm *tp;
+ {
+ struct tm tmcopy;
+ tmcopy = *tp;
+ return _strftime_copytm (s, maxsize, format, &tmcopy);
+ }
+# undef my_strftime
+# define my_strftime(S, Maxsize, Format, Tp) \
+ _strftime_copytm (S, Maxsize, Format, Tp)
+#endif
+
+
/* Write information from TP into S according to the format
string FORMAT, writing no more that MAXSIZE characters
(including the terminating '\0') and returning number of
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)
+my_strftime (s, maxsize, format, tp)
char *s;
size_t maxsize;
const char *format;
- register const struct tm *tp;
+ const struct tm *tp;
{
int hour12 = tp->tm_hour;
#ifdef _NL_CURRENT
size_t am_len = strlen (a_month);
size_t ap_len = strlen (ampm);
#else
+# if !HAVE_STRFTIME
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;
size_t aw_len = 3;
size_t am_len = 3;
size_t ap_len = 2;
+# endif
#endif
+#if defined _NL_CURRENT || !HAVE_STRFTIME
size_t wkday_len = strlen (f_wkday);
size_t month_len = strlen (f_month);
+#endif
const char *zone;
size_t zonelen;
- register size_t i = 0;
- register char *p = s;
- register const char *f;
+ size_t i = 0;
+ char *p = s;
+ const char *f;
- 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
+ /* POSIX.1 8.1.1 requires that whenever strftime() is called, the
+ time zone names contained in the external variable `tzname' shall
+ be set as if the tzset() function had been called. */
+# if HAVE_TZSET
+ tzset ();
+# endif
+
if (!(zone && *zone) && tp->tm_isdst >= 0)
zone = tzname[tp->tm_isdst];
#endif
char 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
#endif /* ! DO_MULTIBYTE */
- /* Check for flags that can modify a number format. */
- ++f;
- switch (*f)
+ /* Check for flags that can modify a format. */
+ pad = 0;
+ while (1)
{
- case '_':
- case '-':
- pad = *f++;
- break;
+ switch (*++f)
+ {
+ /* This influences the number formats. */
+ case '_':
+ case '-':
+ case '0':
+ pad = *f;
+ continue;
- default:
- pad = 0;
+ /* This changes textual output. */
+ case '^':
+ to_uppcase = 1;
+ continue;
+ case '#':
+ change_case = 1;
+ continue;
+
+ default:
+ break;
+ }
break;
}
+ /* As a GNU extension we allow to specify the field width. */
+ if (ISDIGIT (*f))
+ {
+ width = 0;
+ do
+ {
+ width *= 10;
+ width += *f - '0';
+ ++f;
+ }
+ while (ISDIGIT (*f));
+ }
+
/* Check for modifiers. */
switch (*f)
{
}
/* 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 = width == -1 ? d : width; \
+ number_value = v; goto do_number
#define DO_NUMBER_SPACEPAD(d, v) \
- digits = d; number_value = v; goto do_number_spacepad
+ digits = width == -1 ? d : width; \
+ number_value = v; goto do_number_spacepad
case '%':
if (modifier != 0)
case '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 (wkday_len, f_wkday);
break;
+#else
+ goto underlying_strftime;
+#endif
case 'b':
case 'h': /* POSIX.2 extension. */
if (modifier != 0)
goto bad_format;
+#if defined _NL_CURRENT || !HAVE_STRFTIME
cpy (am_len, a_month);
break;
+#else
+ goto underlying_strftime;
+#endif
case 'B':
if (modifier != 0)
goto bad_format;
+ if (change_case)
+ {
+ to_uppcase = 1;
+ to_lowcase = 0;
+ }
+#if defined _NL_CURRENT || !HAVE_STRFTIME
cpy (month_len, f_month);
break;
+#else
+ goto underlying_strftime;
+#endif
case 'c':
if (modifier == 'O')
&& *(subfmt = _NL_CURRENT (LC_TIME, ERA_D_T_FMT)) != '\0'))
subfmt = _NL_CURRENT (LC_TIME, D_T_FMT);
#else
- subfmt = "%a %b %e %H:%M:%S %Z %Y";
+# if HAVE_STRFTIME
+ goto underlying_strftime;
+# else
+ subfmt = "%a %b %e %H:%M:%S %Y";
+# endif
#endif
subformat:
{
- size_t len = strftime (p, maxsize - i, subfmt, tp);
+ char *old_start = p;
+ size_t len = my_strftime (NULL, maxsize - i, subfmt, tp);
if (len == 0 && *subfmt)
return 0;
- add (len, ;);
+ add (len, my_strftime (p, maxsize - i, subfmt, tp));
+
+ if (to_uppcase)
+ while (old_start < p)
+ {
+ *old_start = TOUPPER ((unsigned char) *old_start);
+ ++old_start;
+ }
}
break;
+#if HAVE_STRFTIME && ! (defined _NL_CURRENT && HAVE_STRUCT_ERA_ENTRY)
+ underlying_strftime:
+ {
+ /* The relevant information is available only via the
+ underlying strftime implementation, so use that. */
+ char ufmt[4];
+ char *u = ufmt;
+ char ubuf[1024]; /* enough for any single format in practice */
+ size_t len;
+ *u++ = '%';
+ if (modifier != 0)
+ *u++ = modifier;
+ *u++ = format_char;
+ *u = '\0';
+ len = strftime (ubuf, sizeof ubuf, ufmt, tp);
+ if (len == 0)
+ return 0;
+ cpy (len, ubuf);
+ }
+ break;
+#endif
+
case 'C': /* POSIX.2 extension. */
if (modifier == 'O')
goto bad_format;
-#if HAVE_STRUCT_ERA_ENTRY
if (modifier == 'E')
{
+#if HAVE_STRUCT_ERA_ENTRY
struct era_entry *era = _nl_get_era_entry (tp);
if (era)
{
cpy (len, era->name_fmt);
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));
&& *(subfmt = _NL_CURRENT (LC_TIME, ERA_D_FMT)) != '\0'))
subfmt = _NL_CURRENT (LC_TIME, D_FMT);
goto subformat;
-#endif
+#else
+# if HAVE_STRFTIME
+ goto underlying_strftime;
+# else
/* Fall through. */
+# endif
+#endif
case 'D': /* POSIX.2 extension. */
if (modifier != 0)
goto bad_format;
jump to one of these two labels. */
do_number_spacepad:
- /* Force `_' flag. */
- pad = '_';
+ /* Force `_' flag unless overwritten by `0' flag. */
+ if (pad != '0')
+ pad = '_';
do_number:
/* Format the number according to the MODIFIER flag. */
-#ifdef _NL_CURRENT
if (modifier == '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 *cp = _nl_get_alt_digit (number_value);
break;
}
}
- }
+#else
+# if HAVE_STRFTIME
+ goto underlying_strftime;
+# endif
#endif
+ }
{
unsigned int u = number_value;
add (1, *p = '\n');
break;
+ case 'P':
+ to_lowcase = 1;
+#if !defined _NL_CURRENT && HAVE_STRFTIME
+ format_char = 'p';
+#endif
+ /* FALLTHROUGH */
+
case '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 'R': /* GNU extension. */
subfmt = "%H:%M";
case 's': /* GNU extension. */
{
- struct tm ltm = *tp;
- time_t t = mktime (<m);
+ struct tm ltm;
+ time_t t;
+
+ ltm = *tp;
+ t = mktime (<m);
/* Generate string value for T using time_t arithmetic;
this works even if sizeof (long) < sizeof (time_t). */
&& *(subfmt = _NL_CURRENT (LC_TIME, ERA_T_FMT)) != '\0'))
subfmt = _NL_CURRENT (LC_TIME, T_FMT);
goto subformat;
-#endif
+#else
+# if HAVE_STRFTIME
+ goto underlying_strftime;
+# else
/* Fall through. */
+# endif
+#endif
case 'T': /* POSIX.2 extension. */
subfmt = "%H:%M:%S";
goto subformat;
DO_NUMBER (1, tp->tm_wday);
case 'Y':
-#if HAVE_STRUCT_ERA_ENTRY
if (modifier == 'E')
{
+#if HAVE_STRUCT_ERA_ENTRY
struct era_entry *era = _nl_get_era_entry (tp);
if (era)
{
subfmt = strchr (era->name_fmt, '\0') + 1;
goto subformat;
}
- }
+#else
+# if HAVE_STRFTIME
+ goto underlying_strftime;
+# endif
#endif
+ }
if (modifier == 'O')
goto bad_format;
else
DO_NUMBER (1, tp->tm_year + TM_YEAR_BASE);
case 'y':
-#if HAVE_STRUCT_ERA_ENTRY
if (modifier == 'E')
{
+#if HAVE_STRUCT_ERA_ENTRY
struct era_entry *era = _nl_get_era_entry (tp);
if (era)
{
DO_NUMBER (1, (era->offset
+ (era->direction == '-' ? -delta : delta)));
}
- }
+#else
+# if HAVE_STRFTIME
+ goto underlying_strftime;
+# endif
#endif
+ }
DO_NUMBER (2, (tp->tm_year % 100 + 100) % 100);
case 'Z':
- cpy(zonelen, zone);
+ if (change_case)
+ {
+ to_uppcase = 0;
+ to_lowcase = 1;
+ }
+ cpy (zonelen, zone);
break;
case 'z': /* GNU extension. */
diff = tp->tm_gmtoff;
#else
struct tm gtm;
- struct tm ltm = *tp;
- time_t lt = mktime (<m);
+ struct tm ltm;
+ time_t lt;
+
+ ltm = *tp;
+ lt = mktime (<m);
if (lt == (time_t) -1)
{
projects / platform / upstream / linaro-glibc.git / blobdiff