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Re: Questions regarding recurrence rules



Am Donnerstag, 2. Juni 2005 21:15 schrieb Doug Royer:
> This is more documentation supporting my assertion that recurrence
> rules are not as portable as many claim.
>
> I would suggest using RDATE's and no RRULE or EXRULE. They are
> easy to unwind, only after clearly defined and consistently used.

Using only RDATE means loosing data (namely the actual intent) and the 
possibility to edit the data later on. 
If you have a course with the following data (from a student's perspecitive):
Mar 2, 7, 9, 14, ...
Can you be sure that it is really meant as a course that happens every monday 
and wednesday? No, you'll have to look at your calendar for every date. If 
you see that the recurrence is every monday and friday, you don't need to 
look at your calendar, but sooner or later you'll remember.

Also, in KOrganizer we also use iCalendar to store the whole calendar on disk, 
and there we absolutely need a way to store the way in which a date is 
recurring. Simply discarding all RRULES and using RDATES instead might be a 
solution for sending invitations, but it's not a solution for storing on 
disk, and also not for exchanging events between two calendaring applications 
(i.e. import/export of events). 

Cheers,
Reinhold

-- 
------------------------------------------------------------------
Reinhold Kainhofer, Vienna, Austria
email: reinhold@xxxxxxxxxxxxx, http://reinhold.kainhofer.com/
 * Financial and Actuarial Mathematics, TU Wien, http://www.fam.tuwien.ac.at
 * K Desktop Environment, http://www.kde.org/, KOrganizer / KPilot maintainer

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