arrowp

preprocessor translating arrow notation into Haskell 98

http://www.haskell.org/arrows/

Latest on Hackage:0.5.0.2

This package is not currently in any snapshots. If you're interested in using it, we recommend adding it to Stackage Nightly. Doing so will make builds more reliable, and allow stackage.org to host generated Haddocks.

LicenseRef-GPL licensed and maintained by Ross Paterson

A preprocessor that reads Haskell with arrow notation and outputs Haskell 98. Note that GHC 6.2 or later has built-in support for arrow notation, so if you're only using GHC, you don't need this preprocessor: just rename your arrow module as an ordinary Haskell source file and add a LANGUAGE Arrows pragma at the top. GHC also gives better error messages for arrow code.