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From: Richard Stallman <rms@gnu.org>
Newsgroups: gmane.emacs.devel
Subject: Re: define-derived-mode again (was: Emacs design question)
Date: Fri, 25 Jul 2003 04:00:03 -0400
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    Non-derived case:

      (define-major-mode NAME "DOC" ...)

    Derived case:

      (define-major-mode (NAME PARENT-NAME) "DOC" ...)

This is somewhat more elegant, but I think that in practice
it will be much cleaner if the first argument is always
the new mode name, uniformly.