Parsec is a monadic combinator library that is well-documented, simple to use, and produces good error messages. Parsec is not inherently lazy/incremental and is not well-suited to handling large quantities of simply formatted data. Parsec 3 added to Parsec the ability to use Parsec as a monad transformer and generalizes the input Parsec accepts. This is a minor point release over Parsec 3.1.0. The changes in this release are: - A bug introduced in 3.1.0 which reduced the quality of error messages when failing to parse has been fixed - Typos in some of the Haddock documentation have been fixed - The package 'syb` is no longer a dependency Please note that there are a few changes which have not yet made it to the up-stream source repository, as code.haskell.org is experiencing a temporary outage. Link on Hackage: http://hackage.haskell.org/package/parsec-3.1.1 I'd like to thank Derek Elkins for prior his maintainer-ship of the package and for getting the Summer-Of-Code work released as parsec-3.0.