A vim configuration for use with one of the following plugins.
The original authors listed in the scripts are Claus Reinke , motemen motemen@gmail.com, John Williams jrw@pobox.com
In addition, the syntax file has the following note:
Thanks to Ryan Crumley for suggestions and John Meacham for
pointing out bugs. Also thanks to Ian Lynagh and Donald Bruce Stewart
for providing the inspiration for the inclusion of the handling
of C preprocessor directives, and for pointing out a bug in the
end-of-line comment handling.
If you want to specify the certain language-extensions whenever you create new .hs file,
let g:vim_haskell_language_extensions = [
\ 'OverloadedStrings',
\ 'TemplateHaskell'
\ ]