Tweaked and committed, thanks.

An iCalendar event can have no DTEND attribute, in which case the end 
date is considered to be equal to the start date. From 
http://www.ietf.org/rfc/rfc2445.txt :

« For cases where a "VEVENT" calendar component specifies a "DTSTART"

    property with a DATE data type but no "DTEND" property, the events

    non-inclusive end is the end of the calendar date specified by the

    "DTSTART" property. For cases where a "VEVENT" calendar component

    specifies a "DTSTART" property with a DATE-TIME data type but no

    "DTEND" property, the event ends on the same calendar date and time

    of day specified by the "DTSTART" property. »



I have attached an event which fails to import properly in the latest 
stable Kronolith.

Here's a very simple patch to make it work :



--- lib/Driver.php.orig Wed Jan 11 11:36:09 2006

+++ lib/Driver.php      Wed Jan 11 11:34:40 2006

@@ -603,6 +603,8 @@

              $duration = $vEvent->getAttribute('DURATION');

              if (!is_array($duration) && !is_a($duration, 'PEAR_Error')) {

                  $this->end = &new 
Horde_Date($this->start->timestamp() + $duration);

+            } else { // Neither DTEND nor DURATION : end date is 
start date (see rfc)

+                $this->end = $this->start;

              }

          }



Feel free to adapt it to your needs of course.