Re: [Chandler-dev] Custom recurrence dialog

On 9 Jul, 2008, at 17:18, Jeffrey Harris wrote:

> Hi Folks,
>
> Re: the first occurrence not being included in Chandler, Katie said:
>
>> I assume this is known and mostly harmless, but thought I'd bring  
>> it up.
>
> Yeah, it kind of sucks that dateutil decided to implement the RFC's  
> definition of rrule in almost every way except this.
>
> When I originally wrote vobject, this bothered me so much I wrote  
> code to always create an RDATE to match DTSTART, so the rules would  
> match. But that turns out not to really solve the problem, and it  
> causes a bunch of hassles in Chandler if you later decide to change  
> what day the first occurrence is on.
>
> I think fixing this would basically require some major revisions to  
> dateutil.  I periodically think of doing that, because I'm convinced  
> we could get a fair amount of performance improvement from updating  
> it (and we could make it easier to read/hack/update, to boot), but  
> it's never gotten near the top of my priority list.

Another approach would be to fix Chandler's rrule expansion (i.e. to  
include the master's start if dateutil doesn't, and it's not an  
exdate). That wouldn't have any benefit for dateutil, of course :o.

--Grant


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