[ithkuil]

there is a port of haskell parsec library to clojure at http://github.com/mmikulicic/clarsec/

[brehaut]

There is also another parser combinator library called fnparse at http://github.com/joshua-choi/fnparse

[ithkuil]

another one in http://kotka.de/projects/clojure/parser.html, also using the same nomenclature as in Parsec. Very nice but the sources are unreachable.

I wrote clarsec because I was in hurry and the "kotka"'s sources weren't available.