It is not a bug, but it depends on what you expect the first week of
the month to be. You can play with the 'week_start_day' parameter to
get the right week.
The module DateTime::Event::ICal is probably a better choice for you,
since it defaults to the behaviour you expect:
---
use DateTime::Event::ICal;
my ($start) = 1257051600;
my ($end) = 1283058000;
my ($start_dt) = DateTime->from_epoch(epoch => $start);
my ($end_dt) = DateTime->from_epoch(epoch => $end);
my ($set) = DateTime::Event::ICal->recur(freq => 'monthly', byday => ['2tu']);
my ($iterator) = $set->iterator(start => $start_dt, end => $end_dt);
while (my $dt = $iterator->next) {
printf "%s (%s)\n", scalar gmtime $dt->epoch, $dt->weekday_of_month;
}
---
Tue Nov 10 00:00:00 2009 (2)
Tue Dec 8 00:00:00 2009 (2)
Tue Jan 12 00:00:00 2010 (2)
Tue Feb 9 00:00:00 2010 (2)
Tue Mar 9 00:00:00 2010 (2)
Tue Apr 13 00:00:00 2010 (2)
Tue May 11 00:00:00 2010 (2)
Tue Jun 8 00:00:00 2010 (2)
Tue Jul 13 00:00:00 2010 (2)
Tue Aug 10 00:00:00 2010 (2)
2009/12/18 Frank Sheiness <synde...@gmail.com>:
> Hello,
>
> The manpage provides the example:
> # second tuesday of every month
> my $set = DateTime::Event::Recurrence->monthly( weeks => 2, days => 2 );
>
> However, if I do this:
>
> use DateTime::Event::Recurrence;
>
> my ($start) = 1257051600;
> my ($end) = 1283058000;
> my ($start_dt) = DateTime->from_epoch(epoch => $start);
> my ($end_dt) = DateTime->from_epoch(epoch => $end);
>
> my ($set) = DateTime::Event::Recurrence->monthly(weeks => 2, days => 2);
>
> my ($iterator) = $set->iterator(start => $start_dt, end => $end_dt);
>
> while (my $dt = $iterator->next) {
> printf "%s (%s)\n", scalar gmtime $dt->epoch, $dt->weekday_of_month;
> }
>
> I get the following output:
>
> Tue Nov 10 00:00:00 2009 (2)
> Tue Dec 15 00:00:00 2009 (3)
> Tue Jan 12 00:00:00 2010 (2)
> Tue Feb 9 00:00:00 2010 (2)
> Tue Mar 9 00:00:00 2010 (2)
> Tue Apr 13 00:00:00 2010 (2)
> Tue May 11 00:00:00 2010 (2)
> Tue Jun 15 00:00:00 2010 (3)
> Tue Jul 13 00:00:00 2010 (2)
> Tue Aug 10 00:00:00 2010 (2)
>
> In December and June (months that begin on Tuesday), the event shows up on
> the third weekday of the month instead of the second. Note that you get the
> same behavior for any value of "days" in the set. If I use 3 for Wednesday,
> I'll get the second Wednesday except for months that begin on Tuesday. Is
> this a bug or am I doing something incorrectly? I'm using D::E::R v0.16.
>
> Thanks,
> Frank
>
