Working with recurring events in iCal

Hi all,

I am looking for a way to get some sort of summary information on
calendars, I am especially interested in getting the total duration of
some  collection of events.

iCal does not seem to provide such a funcitonnality.

I did hear about Apple Script, and with the help of introductory
documents, learned basics of Apple Script to solve this problem.

Now my `high level problem' boils down to the following `low level
problem': enumerate all the occurences of a recurring event (given a
time interval). I really do not know how to handle this, and to be
honnest I am quite disappointed that iCal cannot be asked for this, in
a more or less direct manner.

In my investigations I noticed in the ``Calendar Store Programming
Guide'' that it was possible to enumerate all the occurences of a
recurring event occuring within a time interval with an adequate
Objective C call. However I cannot program Objective C.

Does anyone knows how to solve this enumeration problem?
-- 
Cheers,
Michaël