Originally Posted by auspex
Personally, I'd like to be able to tell it formats:"=epub", but formats:true should work without affecting anybody negatively.
Until somebody comes along who keeps books without any formats. I've heard of people doing that.
Try the attached version -- it allows you to configure the searches to your own taste. I expected somebody to ask for that feature months ago.
UPDATE Jun 22, 2013 Remove obsolete beta versions