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Update. 

* time/strptime.c (strptime_internal): Add handling of year +
	%U/%W week + week day.
This commit is contained in:
Ulrich Drepper 2001-08-09 22:33:28 +00:00
parent 2f278c9480
commit 5d9f13dc9b
2 changed files with 63 additions and 4 deletions
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3
ChangeLog
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@ -1,5 +1,8 @@
2001-08-09 Ulrich Drepper <drepper@redhat.com>
* time/strptime.c (strptime_internal): Add handling of year +
%U/%W week + week day.
* stdio-common/vfscanf.c: Fix reading of wide chars and strings if
not COMPILE_WSCANF.

64
time/strptime.c
View File

@ -1,5 +1,5 @@
/* Convert a string representation of time to a time value.
Copyright (C) 1996, 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
Copyright (C) 1996-2000, 2001 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
@ -273,6 +273,8 @@ strptime_internal (rp, fmt, tm, decided, era_cnt)
int have_wday, want_xday;
int have_yday;
int have_mon, have_mday;
int have_uweek, have_wweek;
int week_no;
size_t num_eras;
struct era_entry *era;
@ -281,8 +283,10 @@ strptime_internal (rp, fmt, tm, decided, era_cnt)
want_century = 0;
want_era = 0;
era = NULL;
week_no = 0;
have_wday = want_xday = have_yday = have_mon = have_mday = 0;
have_wday = want_xday = have_yday = have_mon = have_mday = have_uweek = 0;
have_wweek = 0;
while (*fmt != '\0')
{
@ -639,8 +643,16 @@ strptime_internal (rp, fmt, tm, decided, era_cnt)
while (*rp >= '0' && *rp <= '9');
break;
case 'U':
case 'V':
get_number (0, 53, 2);
week_no = val;
have_uweek = 1;
break;
case 'W':
get_number (0, 53, 2);
week_no = val;
have_wweek = 1;
break;
case 'V':
get_number (0, 53, 2);
/* XXX This cannot determine any field in TM without some
information. */
@ -902,8 +914,16 @@ strptime_internal (rp, fmt, tm, decided, era_cnt)
tm->tm_sec = val;
break;
case 'U':
case 'V':
get_alt_number (0, 53, 2);
week_no = val;
have_uweek = 1;
break;
case 'W':
get_alt_number (0, 53, 2);
week_no = val;
have_wweek = 1;
break;
case 'V':
get_alt_number (0, 53, 2);
/* XXX This cannot determine any field in TM without
further information. */
@ -975,6 +995,42 @@ strptime_internal (rp, fmt, tm, decided, era_cnt)
}
if (want_xday && !have_yday)
day_of_the_year (tm);
if ((have_uweek || have_wweek) && have_wday)
{
int save_wday = tm->tm_wday;
int save_mday = tm->tm_mday;
int save_mon = tm->tm_mon;
int w_offset = have_uweek ? 0 : 1;
tm->tm_mday = 1;
tm->tm_mon = 0;
day_of_the_week (tm);
if (have_mday)
tm->tm_mday = save_mday;
if (have_mon)
tm->tm_mon = save_mon;
if (!have_yday)
tm->tm_yday = ((7 - (tm->tm_wday - w_offset)) % 7
+ (week_no - 1) *7
+ save_wday - w_offset);
if (!have_mday || !have_mon)
{
int t_mon = 0;
while (__mon_yday[__isleap(1900 + tm->tm_year)][t_mon]
<= tm->tm_yday)
t_mon++;
if (!have_mon)
tm->tm_mon = t_mon - 1;
if (!have_mday)
tm->tm_mday =
(tm->tm_yday
- __mon_yday[__isleap(1900 + tm->tm_year)][t_mon - 1] + 1);
}
tm->tm_wday = save_wday;
}
return (char *) rp;
}