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-rw-r--r--time/strftime.c140
1 files changed, 117 insertions, 23 deletions
diff --git a/time/strftime.c b/time/strftime.c
index 1da36e12d6..fdf0500a92 100644
--- a/time/strftime.c
+++ b/time/strftime.c
@@ -275,7 +275,7 @@ memcpy_lowcase (dest, src, len)
size_t len;
{
while (len-- > 0)
- dest[len] = TOLOWER (src[len]);
+ dest[len] = TOLOWER ((unsigned char) src[len]);
return dest;
}
@@ -288,7 +288,7 @@ memcpy_uppcase (dest, src, len)
size_t len;
{
while (len-- > 0)
- dest[len] = TOUPPER (src[len]);
+ dest[len] = TOUPPER ((unsigned char) src[len]);
return dest;
}
@@ -348,7 +348,7 @@ iso_week_days (yday, wday)
}
-#ifndef _NL_CURRENT
+#if !(defined _NL_CURRENT || HAVE_STRFTIME)
static char const weekday_name[][10] =
{
"Sunday", "Monday", "Tuesday", "Wednesday",
@@ -362,13 +362,27 @@ static char const month_name[][10] =
#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
- strftime (s, maxsize, format, tp)
+ my_strftime (s, maxsize, format, tp)
char *s;
size_t maxsize;
const char *format;
@@ -378,10 +392,8 @@ static char const month_name[][10] =
tmcopy = *tp;
return _strftime_copytm (s, maxsize, format, &tmcopy);
}
-# ifdef strftime
-# undef strftime
-# endif
-# define strftime(S, Maxsize, Format, Tp) \
+# undef my_strftime
+# define my_strftime(S, Maxsize, Format, Tp) \
_strftime_copytm (S, Maxsize, Format, Tp)
#endif
@@ -393,7 +405,7 @@ static char const month_name[][10] =
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;
@@ -411,6 +423,7 @@ strftime (s, maxsize, format, tp)
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;
@@ -419,9 +432,12 @@ strftime (s, maxsize, format, tp)
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;
size_t i = 0;
@@ -475,6 +491,7 @@ strftime (s, maxsize, format, tp)
int to_lowcase = 0;
int to_uppcase = 0;
int change_case = 0;
+ int format_char;
#if DO_MULTIBYTE
@@ -603,7 +620,8 @@ strftime (s, maxsize, format, tp)
}
/* Now do the specified format. */
- switch (*f)
+ format_char = *f;
+ switch (format_char)
{
#define DO_NUMBER(d, v) \
digits = width == -1 ? d : width; \
@@ -626,8 +644,12 @@ strftime (s, maxsize, format, tp)
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)
@@ -637,15 +659,23 @@ strftime (s, maxsize, format, tp)
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)
@@ -655,8 +685,12 @@ strftime (s, maxsize, format, tp)
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')
@@ -666,32 +700,58 @@ strftime (s, maxsize, format, tp)
&& *(subfmt = _NL_CURRENT (LC_TIME, ERA_D_T_FMT)) != '\0'))
subfmt = _NL_CURRENT (LC_TIME, D_T_FMT);
#else
+# if HAVE_STRFTIME
+ goto underlying_strftime;
+# else
subfmt = "%a %b %e %H:%M:%S %Y";
+# endif
#endif
subformat:
{
char *old_start = p;
- size_t len = strftime (NULL, maxsize - i, subfmt, tp);
+ size_t len = my_strftime (NULL, maxsize - i, subfmt, tp);
if (len == 0 && *subfmt)
return 0;
- add (len, strftime (p, maxsize - i, subfmt, tp));
+ add (len, my_strftime (p, maxsize - i, subfmt, tp));
if (to_uppcase)
while (old_start < p)
{
- *old_start = TOUPPER (*old_start);
+ *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)
{
@@ -699,8 +759,13 @@ strftime (s, maxsize, format, tp)
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));
@@ -714,8 +779,13 @@ strftime (s, maxsize, format, tp)
&& *(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;
@@ -745,9 +815,9 @@ strftime (s, maxsize, format, tp)
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);
@@ -761,8 +831,12 @@ strftime (s, maxsize, format, tp)
break;
}
}
- }
+#else
+# if HAVE_STRFTIME
+ goto underlying_strftime;
+# endif
#endif
+ }
{
unsigned int u = number_value;
@@ -852,6 +926,9 @@ strftime (s, maxsize, format, tp)
case 'P':
to_lowcase = 1;
+#if !defined _NL_CURRENT && HAVE_STRFTIME
+ format_char = 'p';
+#endif
/* FALLTHROUGH */
case 'p':
@@ -860,8 +937,12 @@ strftime (s, maxsize, format, tp)
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";
@@ -927,8 +1008,13 @@ strftime (s, maxsize, format, tp)
&& *(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;
@@ -1000,26 +1086,30 @@ strftime (s, maxsize, format, tp)
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)
{
@@ -1027,8 +1117,12 @@ strftime (s, maxsize, format, tp)
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':
generated by cgit v1.2.3 (git 2.39.1) at 2024-04-27 17:42:56 +0000