search options for packages.debian.org?

[Miles Fidelman <mfidelman@meetinghouse.net>]

Hi,

Can you point me at documentation for the full set of search options 
available for packages.debian.org, beyond the ones exposed by the web page?

Specifically, I'm looking for a way to search on package priority.

Thanks,

Miles Fidelman

--
In theory, there is no difference between theory and practice.
In practice, there is.   .... Yogi Berra