[dev] kronolith ical DURATION

[Chuck Hagenbuch]

Quoting Justus Pendleton <justus-sender-0c5c46 at ryoohki.net>:

> I tried using some of the shared calendars on www.icalshare.com in Kronolith
> with little success.  The first problem I've found is that kronolith doesn't
> understand the DURATION tag.  Attached is a patch that fixes this.

Committed, thanks.

> A quick search on google turned up http://phpicalendar.sourceforge.net/nuke/
> which seems to have more featureful and robust ical parsing than kronolith
> currently does...I don't know how feasible it would be to let a third party
> like that handle ical parsing though.

Well, we also have the Horde_iCalendar package, that does a much more thorough
job. It'd be best to add the necessary features there (with inspiration from
phpicalendar as necessary), and to use that in Horde_Data_icalendar instead of
the duplicated code there now.

-chuck

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