The "start" parameter only provides an anchor for calculation of where the "interval" starts.
This is documented (paste below) but the language could be clearer.
In order to limit the set, an intersection with a DateTime::Span can be used.
Alternately, the as_list() method accepts DateTime::Span parameters as well:
my @dt = $set->as_list( start => $dt1, end => $dt2 );
Note: sorry, I only saw this ticket today.
"""
=head2 The "interval" and "start" Parameters
The "interval" parameter represents how often the recurrence rule repeats.
The optional "start" parameter specifies where to start counting:
my $dt_start = DateTime->new( year => 2003, month => 6, day => 15 );
my $set = DateTime::Event::Recurrence->daily
( interval => 11,
hours => 10,
minutes => 30,
start => $dt_start,
);
This specifies a recurrence that happens at 10:30 on the day specified
by C<< start => $dt >>, and then every 11 days I<before and after>
C<$dt>. So we get a set like this:
...
2003-06-04T10:30:00,
2003-06-15T10:30:00,
2003-06-26T10:30:00,
...
"""
Em Seg Set 03 11:23:38 2012, fglock@gmail.com escreveu:
Show quoted text> The "start" parameter specifies an anchor date, and the "interval"
> counts forward and backwards in time.
>
> "start" doesn't bound the set.
>
> You can get a bounded set by intersecting the recurrence with a
> DateTime::Span.
>
> Re-reading the docs, I can see this could be better documented, sorry.
>
> 2012/9/3 Ian Norton via RT <bug-DateTime-Event-
> Recurrence@rt.cpan.org>:
> > Mon Sep 03 10:14:17 2012: Request 79375 was acted upon.
> > Transaction: Ticket created by IDN
> > Queue: DateTime-Event-Recurrence
> > Subject: Constructor ignores start and interval
> > Broken in: 0.16
> > Severity: Important
> > Owner: Nobody
> > Requestors: IDN@cpan.org
> > Status: new
> > Ticket <URL:
https://rt.cpan.org/Ticket/Display.html?id=79375 >
> >
> >
> > Hi Peeps,
> >
> > This module seems to be ignoring start and interval.
> >
> > See the test below:
> >
> > <snip>
> > #!/usr/bin/perl
> >
> > use strict;
> > use warnings;
> >
> > use DateTime;
> > use DateTime::Event::Recurrence;
> >
> > my $dt_start = DateTime->now();
> >
> > print("Datetime start is " . $dt_start . "\n");
> >
> > my $set = DateTime::Event::Recurrence->daily(
> > interval => 11,
> > hours => 10,
> > minutes => 30,
> > start => $dt_start,
> > );
> >
> > print("Set start: " . $set->min->mdy . "\n");
> > print("Set end: " . $set->max->mdy . "\n");
> > <.snip>
> >
> > Outputs:
> >
> > Datetime start is 2012-09-03T14:05:50
> > Spanset start:
> > -9223372036854775808--9223372036854775808--9223372036854775808
> > Spanset end: -01--01--0001
> >
> > For some reason the args seem to be ignored and the returned set is
> > unbound giving a min and max of infinity.
> >
> > I've had a very quick look at the source but I can't see an obvious
> > place to start.
> >
> > Thanks, Ian.
