On 25 Nov 2001, Ask Bjoern Hansen wrote: > [EMAIL PROTECTED] (Rich Bowen) writes: > > > rbowen@rhiannon:~% perl -MDate::ISO -le 'my $d=Date::ISO->new( epoch => > > time ); print $d->iso;' > > 2001-W44-6 > > > > Unfortunately, the "default" ISO date format is this year-week-day > > format. At least that's what I gathered from all the web sites that I > > read about this format. > > ISO 8601 specifies multiple notations. For everything I have ever > done, the notation you choose seems ... uh, not so useful. :-)
It's not exactly what I *chose*. It's the notation specified by Nachum and Dershowitz in Calendrical Calculations. > http://www.cl.cam.ac.uk/~mgk25/iso-time.html gives a pretty good > overview of the standard. > > Something like > > strftime("%Y-%m-%dT%H:%M:%SZ", gmtime(time)); > > seems more useful. It gives > > $ perl -MPOSIX=strftime -e 'print strftime("%Y-%m-%dT%H:%M:%SZ\n", gmtime(time))'; > 2001-11-25T14:56:48Z Which is ICal (Well, almost). At which point, there's no reason to have Date::ISO and Date::ICal, as they have identical behavior. Right? Of course, most folks would agree that there's very little need for *most* of the Date:: hierarchy, but that's a different discussion! :-) Sure, that's more "useful", but most of the Date:: modules that I have produced are not, strictly speaking, aiming at being useful, but are aiming at being implementations of a particular calendaring scheme, to the best of my understanding. And although I have been encouraged to have Date::ISO output different formats, I'm still rather torn on this, since a re-reading of Nachum and Dershowitz confirms that I'm doing it "correctly". I think that what I will probably end up doing is adding another method to output a more "useful" format. Alternately, one can just call the ->ical method to get the ical string, which is almost what you have above (minus some punctuation). % perl -MDate::ISO -le '$d=Date::ISO->new; print $d->ical;' 20011125T214115Z -- Rich Bowen - [EMAIL PROTECTED] Author - Apache Server Unleashed - http://www.apacheunleashed.com/
