Haskell-mode is a major Emacs mode for editing Haskell source code. It provides syntax highlighting and automatic indentation and comes with inf-haskell which allows interaction with an inferior Haskell interactive loop such as the one of Hugs or GHCi.
This release should work on any recent version of Emacs. If it doesn't, complain here, or discuss it on the mailing list. If it works on XEmacs, consider yourself lucky.
README file for installation instructions.
Check the NEWS file for a list of changes in this version.
To clarify: 2.5 and up require reconfiguration, or indentation will
not work! Read the README.
git clone https://github.com/haskell/haskell-mode.gitto check it out.