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Re: Advice on advice needed

From: John Mastro
Subject: Re: Advice on advice needed
Date: Fri, 13 Feb 2015 16:22:29 -0800

Marcin Borkowski <address@hidden> wrote:
> There is a function in Emacs which really should be wrapped in
> `save-excursion' (it's `message-insert-signature').  I advised it, so
> that I can repeatedly press C-c C-w to cycle between a few signatures.
> However, it puts the point at the end of the buffer.
> Is there a way to wrap it in `save-excursion' using advice, or is
> writing a wrapper function the only way to do it?  (I guess the latter,
> but maybe I'm wrong?)  I'm on Emacs, so I have the "new
> advice" system on board.

I think something like this should work:

    (defun save-excursion-wrapper (function &rest args)
        (apply function args)))

    (advice-add 'message-insert-signature


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