-/* Copyright (C) 1991, 92, 93, 94, 95, 96 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 92, 93, 94, 95, 96, 97 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.
# 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
+#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
# include <stdlib.h>
# include <string.h>
#else
-# define memcpy(d, s, n) bcopy (s, d, n)
+# 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. */
+# 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
+extern int __tz_compute __P ((time_t timer, const struct tm *tm));
+# 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
+# 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
+# define localtime_r my_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. */
+static const char spaces[16] = " ";
+
+# 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)
+#else
+# define memset_space(P, Len) memset ((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) \
+ 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 (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 (src[len]);
+ return dest;
+}
#if ! HAVE_TM_GMTOFF
/* Yield the difference between *A and *B,
};
#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
+ 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);
+ }
+# ifdef strftime
+# undef strftime
+# endif
+# define 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
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 month_len = strlen (f_month);
const char *zone;
size_t zonelen;
- register size_t i = 0;
- register char *p = s;
- register const char *f;
-
- zone = 0;
-#if HAVE_TM_ZONE
+ size_t i = 0;
+ char *p = s;
+ const char *f;
+
+ zone = NULL;
+#if !defined _LIBC && HAVE_TM_ZONE
+ /* XXX We have some problems here. First, the string pointed to by
+ tm_zone is dynamically allocated while loading the zone data. But
+ when another zone is loaded since the information in TP were
+ computed this would be a stale pointer.
+ The second problem is the POSIX test suite which assumes 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. --drepper@gnu */
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;
#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;
+
+ 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)
{
subformat:
{
- size_t len = strftime (p, maxsize - i, subfmt, tp);
+ char *old_start = p;
+ size_t len = strftime (NULL, maxsize - i, subfmt, tp);
if (len == 0 && *subfmt)
return 0;
- add (len, ;);
+ add (len, strftime (p, maxsize - i, subfmt, tp));
+
+ if (to_uppcase)
+ while (old_start < p)
+ {
+ *old_start = TOUPPER (*old_start);
+ ++old_start;
+ }
}
break;
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. */
add (1, *p = '\n');
break;
+ case 'P':
+ to_lowcase = 1;
+ /* FALLTHROUGH */
+
case 'p':
cpy (ap_len, ampm);
break;
DO_NUMBER (2, (tp->tm_year % 100 + 100) % 100);
case 'Z':
- cpy(zonelen, zone);
+ cpy (zonelen, zone);
break;
case 'z': /* GNU extension. */
projects / gnulib.git / blobdiff