DateTime::Set, infinity, and recurrences

2004-06-24 Thread Matt Sisk
Hi All. DateTime::Set was changed fairly recently in such a way as to necessitate special handling of infinite datetimes in recurrences. This isn't such a bad thing, but it does introduce complexity into even the simplest of recurrences. From the DateTime::Set docs: # a 'monthly' recurrence:

Re: DateTime::Set, infinity, and recurrences

2004-06-24 Thread Flavio S. Glock
Matt Sisk wrote: If a developer really had a need for handling infinite values, then this wrapping could be explicitely disabled with a parameter in the constructor. This was dismissed in a discussion here. (the parameter detect_bounded is commented out in the code) - Flavio S. Glock

Re: DateTime::Set, infinity, and recurrences

2004-06-24 Thread Dave Rolsky
On Thu, 24 Jun 2004, Flavio S. Glock wrote: Matt Sisk wrote: If a developer really had a need for handling infinite values, then this wrapping could be explicitely disabled with a parameter in the constructor. This was dismissed in a discussion here. Really, did I dismiss it? I can't

Re: DateTime::Set, infinity, and recurrences

2004-06-24 Thread Flavio S. Glock
Dave Rolsky wrote: On Thu, 24 Jun 2004, Flavio S. Glock wrote: Matt Sisk wrote: If a developer really had a need for handling infinite values, then this wrapping could be explicitely disabled with a parameter in the constructor. This was dismissed in a discussion here.

Re: DateTime::Set, infinity, and recurrences

2004-06-24 Thread Matt Sisk
We actually would be changing the current capability, if not the current behavior. Having 'detect_bounded' enabled by default would implement what I discuss but not break anything that already detects bounds on its own. Whether that's the right name or not...it seems okay to me, but other

Re: DateTime::Set, infinity, and recurrences

2004-06-24 Thread Dave Rolsky
On Thu, 24 Jun 2004, Matt Sisk wrote: We actually would be changing the current capability, if not the current behavior. Having 'detect_bounded' enabled by default would implement what I discuss but not break anything that already detects bounds on its own. Whether that's the right name or

Re: DateTime::Set, infinity, and recurrences

2004-06-24 Thread fglock
This works fine, actually: use DateTime::Set; print $DateTime::Set::VERSION, \n; $months = DateTime::Set-from_recurrence( recurrence = sub { return $_[0]-truncate( to = 'month' )-add( months = 1 ) }, ); print $months-next( DateTime-now

Re: DateTime::Set, infinity, and recurrences

2004-06-24 Thread Matt Sisk
[EMAIL PROTECTED] wrote: If your recurrence specification is well-behaved, (don't use internals, etc) you don't have to test for infinite-ness. You only have to use return $_[0] if $_[0]-is_infinite; if your code can't handle DateTime::Infinite. As is wont with discussions of infinity, how to

Re: DateTime::Set, infinity, and recurrences

2004-06-24 Thread Dave Rolsky
On Thu, 24 Jun 2004, Matt Sisk wrote: Unless I'm missing something, it boils down to efficiency (why pointlessly run a DT::Infinite object through its paces) vs edge cases (probably some case of comparing a DT::Infinite to another DT::Infinite and thereby getting caught in an infinite loop).