I saw a discussion about it on this page : http://www.ohloh.net/wiki/mostly_written So i added a reply since there was a post asking for feedback.

Hi, about the prolog files, i think that if you can find lines that begins with :- and/or lines that contains one word followed by a :- it will work. By one word i mean one predicate, something like ... [More] : bla(blo, [hop], lol(bing)) I don't think that rules can have multiple predicate in the head ... I know that Vim look at the % to recognize them [Less]

Please include Prolog in available languages. Note that for the moment, prolog files have a .pl extension name and are considered as Perl ... Thanks you :)