Re: [calsify] Feedback on draft-ietf-calext-icalendar-series

Am 22.11.19 um 10:35 schrieb Neil Jenkins:
> On Fri, 22 Nov 2019, at 17:29, Marten Gajda wrote:
>>
>> I'm not talking about merely merging the instances of multiple 
>> RRULES. When we have an SRULE, the RRULE property would not be 
>> interpreted by the series and go as-is into the resulting VEVENT.
>>
>
> If that was the intention, I clearly missed that when reading the 
> draft. That seems to me to miss the whole point of this feature, which 
> is to generate individual instances for each occurrence so you can 
> then edit the properties on each one without building up a massive 
> ball of overrides. I do not think you should be able to generate 
> events in a series which themselves contain a recurrence rule.

Right, this probably wasn't the intention, but there is nothing in the 
draft which contradicts this use case either. It doesn't introduce any 
complexity. Series expansion would be agnostic to RRULE. Why would we 
artificially limit the resulting events in their properties?

Just addressing the overrides issue would be too short sighted IMO. This 
draft has the potential to fix many more issues with recurring events. I 
mentioned it before; I'd really like to see a future extension which 
allows to determine occurrences of events based on other calendars. For 
instance, often I sit there and delete instances of a recurring event 
which fall on a holiday or on school holidays. What I want to express is 
"this event occurs every week unless it would overlap an event in this 
calendar of (school) holidays". Often school holidays are not known very 
far in advance and may change every year, so a mechanism which evaluates 
them just a few months in advance would be helpful.

Marten

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