Support weekday names as date specifiers

Allow for using shorthands like "Monday" as date specifiers.

Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
This commit is contained in:
Lukas Fleischer 2015-02-11 10:07:37 +01:00
parent 021fd642c9
commit 6a88bdf7cd

View File

@ -647,7 +647,7 @@ char *new_tempfile(const char *prefix)
return fullname;
}
static void ymd_from_time_t(int *year, int *month, int *day, time_t t)
static void get_ymd(int *year, int *month, int *day, time_t t)
{
struct tm tm;
@ -657,6 +657,24 @@ static void ymd_from_time_t(int *year, int *month, int *day, time_t t)
*year = tm.tm_year + 1900;
}
static void get_weekday_ymd(int *year, int *month, int *day, int weekday)
{
time_t t = get_today();
struct tm tm;
int delta;
localtime_r(&t, &tm);
delta = weekday - tm.tm_wday;
if (delta <= 0)
delta += 7;
t += delta * DAYINSEC;
localtime_r(&t, &tm);
*day = tm.tm_mday;
*month = tm.tm_mon + 1;
*year = tm.tm_year + 1900;
}
/*
* Check if a date is valid.
*/
@ -691,16 +709,44 @@ parse_date(const char *date_string, enum datefmt datefmt, int *year,
return 0;
if (!strcasecmp(date_string, "today")) {
ymd_from_time_t(year, month, day, get_today());
get_ymd(year, month, day, get_today());
return 1;
} else if (!strcasecmp(date_string, "yesterday")) {
ymd_from_time_t(year, month, day, get_today() - DAYINSEC);
get_ymd(year, month, day, get_today() - DAYINSEC);
return 1;
} else if (!strcasecmp(date_string, "tomorrow")) {
ymd_from_time_t(year, month, day, get_today() + DAYINSEC);
get_ymd(year, month, day, get_today() + DAYINSEC);
return 1;
} else if (!strcasecmp(date_string, "now")) {
ymd_from_time_t(year, month, day, now());
get_ymd(year, month, day, now());
return 1;
} else if (!strcasecmp(date_string, "sunday") ||
!strcasecmp(date_string, "sun")) {
get_weekday_ymd(year, month, day, 0);
return 1;
} else if (!strcasecmp(date_string, "monday") ||
!strcasecmp(date_string, "mon")) {
get_weekday_ymd(year, month, day, 1);
return 1;
} else if (!strcasecmp(date_string, "tuesday") ||
!strcasecmp(date_string, "tue")) {
get_weekday_ymd(year, month, day, 2);
return 1;
} else if (!strcasecmp(date_string, "wednesday") ||
!strcasecmp(date_string, "wed")) {
get_weekday_ymd(year, month, day, 3);
return 1;
} else if (!strcasecmp(date_string, "thursday") ||
!strcasecmp(date_string, "thu")) {
get_weekday_ymd(year, month, day, 4);
return 1;
} else if (!strcasecmp(date_string, "friday") ||
!strcasecmp(date_string, "fri")) {
get_weekday_ymd(year, month, day, 5);
return 1;
} else if (!strcasecmp(date_string, "saturday") ||
!strcasecmp(date_string, "sat")) {
get_weekday_ymd(year, month, day, 6);
return 1;
}