GHC library providing an API for regular expressions; documentation

 A library containing the interface API for the Haskell regular
 expressions library packages regex-posix, regex-pcre, regex-parsec,
 regex-tdfs, regex-dfa.
 .
 This package provides the documentation for a library for the Haskell
 programming language.
 See http://www.haskell.org/ for more information on Haskell.