Is there any way of accessing the calendar from the command line? E.g. I would like to write add a calendar quick add widget that does the follows:

1. Pops up a small entry widget in which I would type something like:

Lunch with Ron next Wednesday at 12:00

2. A freetext format parses would convert this into an ical file.
3. The widget should somehow import the ical file into the calendar db.

The question is how to do step number 3?