[Haskell-cafe] Re: Run haskell program in emacs without typing "main" in the ghci buffer.

[Jose A. Ortega Ruiz]

Zura_ <xyz at gol.ge> writes:

> Hello,
>
> Is it possible to run haskell program in emacs without typing "main" in the
> ghci buffer? Assuming "main" function exists of course.
> Or, maybe automate sending "main\n" string to ghci buffer input.
> In other words, I want edit/run/see result style session.

Assuming you're using haskell-mode, does

  M-x inferior-haskell-load-and-run

do what you want? You can of course define a shortcut for it:

  (define-key haskell-mode-map "\C-l" 'inferior-haskell-load-and-run)

If you don't want to load the file, just run main:
  
   (defun haskell-main ()
      (interactive)
      (inferior-haskell-send-command (inferior-haskell-process)
                                     ":main"))

(This a very simple version; there're many possible variations; for
instance, adding (swith-to-haskell) at the end).

HTH,
jao