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Date: Tue, 24 Feb 2015 18:57:56 +0100
From: Francois Berenger <francois.berenger@inria.fr>
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Subject: [Caml-list] indenting a .ml file with emacs in batch mode using
 ocaml-mode style

Hello,

Is there anyone who knows how to tell emacs how to indent a given .ml 
file using the indentation style from ocaml-mode?

It should ressemble something like this:

emacs -batch source.ml \
   --eval '(indent-region (point-min) (point-max) nil)' \
   -f save-buffer

I just don't know how to tell emacs to use the ocaml-mode for that
instead of whatever the user has configured in his ~/.emacs (for 
example, instead of tuareg-mode).

Thanks a lot,
Francois.