gistfile1.el

(defun haskell-style ()
  "Sets the current buffer to use Haskell Style. Meant to be
added to `haskell-mode-hook'"
  (interactive)
  (haskell-indent-mode 1)
  (haskell-doc-mode 1)
;;  (turn-on-haskell-indentation)
  (setq haskell-indent-thenelse 2
        haskell-indent-after-keywords '(("where" 2 0)
                                        ("of" 2)
                                        ("do" 4)
                                        ("in" 2 0)
                                        ("{" 2)
                                        ("if" 2)
                                        ("then" 0)
                                        ("else" 0)
                                        ("let" 0)))
  (local-set-key (kbd "RET") 'newline)

  ;; Customization
  (custom-set-variables
   ;; Use cabal-dev for the GHCi session. Ensures our dependencies are in scope.
                                        ;'(haskell-process-type 'cabal-dev)
                                        ;'(haskell-process-type 'cabal-ghci)
   '(haskell-process-type 'cabal-repl)

   ;; Use notify.el (if you have it installed) at the end of running
   ;; Cabal commands or generally things worth notifying.
   '(haskell-notify-p t)

   ;; To enable tags generation on save.
                                        ; note: requires process mode
   '(haskell-tags-on-save t)

   ;; Disable error folding
   '(haskell-interactive-mode-hide-multi-line-errors nil)

   ;; To enable stylish on save.
   '(haskell-stylish-on-save t))

  (setq tab-width 4
        haskell-indentation-layout-offset 2
        haskell-indentation-left-offset 2
        haskell-indentation-starter-offset 2
        haskell-indentation-ifte-offset 2))