[kronolith] Kronolith iCal export generates output violating RFC5545

[Jan Schneider]

Zitat von Carsten Schumann <grypho at tempus-vivit.net>:

> Hi everyone,
>
> while playing with iCal4j under Android I discovered that kronolith  
> generates output which is violating RFC5545.
>
> In the .ics file one of my appointments reads:
>
> BEGIN:VEVENT
> DTSTART:20111024T151500Z
> DTEND:20111024T163000Z
> DTSTAMP:20120304T202030Z
> UID:20CD3890-7228-4D06-A305-3BF4A9B8EB69:E306E14E-FBB6-49FE-B37F-8CB3035CCB
>  18
> CREATED:20111010T180609Z
> LAST-MODIFIED:20111010T180609Z
> SUMMARY:Testtermin
> CATEGORIES:Kalender
> CLASS:PUBLIC
> STATUS:CONFIRMED
> TRANSP:OPAQUE
> RRULE:FREQ=WEEKLY;INTERVAL=2;BYDAY=;UNTIL=20111219T225959Z
> END:VEVENT
>
>
> According to RFC5545 (http://tools.ietf.org/html/rfc5545#page-38),  
> the RULE line reads
>
> recur           = recur-rule-part *( ";" recur-rule-part )
>
> with
>
> recur-rule-part = ( "FREQ" "=" freq )
>                        / ( "UNTIL" "=" enddate )
>                        / ( "COUNT" "=" 1*DIGIT )
>                        / ( "INTERVAL" "=" 1*DIGIT )
>                        / ( "BYSECOND" "=" byseclist )
>                        / ( "BYMINUTE" "=" byminlist )
>                        / ( "BYHOUR" "=" byhrlist )
>                        / ( "BYDAY" "=" bywdaylist )
>                        / ( "BYMONTHDAY" "=" bymodaylist )
>                        / ( "BYYEARDAY" "=" byyrdaylist )
>                        / ( "BYWEEKNO" "=" bywknolist )
>                        / ( "BYMONTH" "=" bymolist )
>                        / ( "BYSETPOS" "=" bysplist )
>                        / ( "WKST" "=" weekday )
>
>
> and
>
> bywdaylist  = ( weekdaynum *("," weekdaynum) )
>
> which means "BYDAY=" is invalid as the list requires at least one element.
>
> I'm using the most recent kronolith(3.0.15) and horde(4.0.14) versions.

And which recurrence rule *is* this event actually using?

Jan.

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