[Ietf-calsify] RRULE's and COUNT

[Jeffrey Harris]

Hi Reinhold,

> I wonder how other proprietary applications interpret it (in 
> particular Outlook and Apple iCal)....

One other in the open source camp, Chandler includes DTSTART in its
count. iCal also counts the DTSTART as the first occurrence, regardless
of the rule.  iCal lets you construct such an event in the UI, Chandler
doesn't.

Section 4.3.10 says:

The COUNT rule part defines the number of occurrences at which to
range-bound the recurrence. The "DTSTART" property value, if specified,
counts as the first occurrence.

That seems pretty clear, so while I found it annoying when implementing
recurrence, I'm used to it now.

We certainly have variation in implementations of this, I'd lean towards
following what 2445 said originally, rather than changing the meaning of
COUNT.  But I'm not deeply attached, we already have incompatibility,
it'd be nice to agree on the same interpretation, whatever it is.

Sincerely,
Jeffrey