rex (hackage): Provides a quasi-quoter for regular expressions which yields a tuple, of appropriate arity and types, representing the results of the captures.  Allows the user to specify parsers for captures as inline Haskell.  Can also be used to provide typeful pattern matching in function definitions and pattern matches.  Also, it precompiles the regular expressions into a PCRE compiled byte-array representation, at compile time.
Keywords: bsd3|control|library