[Ietf-calsify] Period values in RDATEs

[Cyrus Daboo]

Hi Jeffrey,

--On December 21, 2006 10:22:10 AM -0800 Jeffrey Harris 
<jeffrey at osafoundation.org> wrote:

> Do any clients out there serialize recurrence rules using RDATEs with
> PERIOD value?
>
> I haven't seen any recurrence rules like this in the wild, and allowing
> two very different ways to serialize modifications to recurring events
> has always struck me as not very helpful for implementors or for people
> trying to wrap their heads around icalendar recurrence.
>
> Could we remove PERIOD value RDATEs from rfc2445bis?

I have seen this - it triggered an error in an iCal library I wrote that 
did not support PERIODs in RDATEs. I think I saw this in Notes generated 
iCal data.

There are some valid use cases where using PERIOD is handy, though all it 
does is allow you to not have to have an explicitly overridden instance 
when all you want to do is change the duration of one or two instances.

PS I share your pain: 
<http://trac.macosforge.org/projects/calendarserver/ticket/20>.

-- 
Cyrus Daboo