Hello,

I have some questions about the data in <gd:recurrence> nodes in event
feeds. I found that it is iCal data, but that is all I have found - no
specifics.

The iCal format, from reading the RFC, is rather complex, and I don't have
an iCal parser library for my platform (Windows Mobile) so I was hoping for
some guidance as to what I'm going to have to deal with.

Some stuff is obvious as it is simply not relevant to calendar events, like
the task & to do stuff. Then there are various attributes which might or
might not appear in a value. An example would be the DTSTART & DTEND items -
so far I have only seen two formats:

   DTSTART;TZID=America/New_York:20061224T094500

with a DURATION item, or

   DTSTART;VALUE=DATE:20060716

with a DTEND item.

Is it safe for me to assume that those are the only two formats I will see
and that I needn't worry about filtering out other
;ATTRIB=VALUE;ATTRIB=VALUE parts?

Same thing goes for other items in a recurrence string. Lacking an iCal
parser I'm using regexes and the less generic I can make them means the less
complex and easier to debug they have to be. Is there anything that says
specifically what I will  and will not encounter? Attributes which are legal
in iCal but would never appear in a GCal feed, and so forth.

Any guidance eon this would be helpful. Thanks in advance.

--
Cory C. Albrecht

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