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From: Sarir Khamsi <sarir.khamsi@raytheon.com>
To: help-gnu-emacs@gnu.org
Subject: Re: Making code more Emacs Lisp-like
Date: Mon, 02 Nov 2009 15:17:41 -0700	[thread overview]
Message-ID: <upr80po56.fsf@raytheon.com> (raw)
In-Reply-To: 871vkgzo80.fsf@kzsu.stanford.edu

Joseph Brenner <doom@kzsu.stanford.edu> writes:

> For example, if you look up "set-mark", there's an example that's
> easily adapted to what you're doing here:
>
>>     (set-mark (+ (point) 1))              ; save the current position
>>     (beginning-of-line)
>>     (kill-region (point) (mark))
>
> Would become:
>
>    (let ((beg (point)))
>       (beginning-of-line)
>       (delete-region beg (point)))

Thanks, this looks better.

> The goal there is to avoid messing with the kill-ring or the mark
> history if that's not necessary.  Otherwise you may surprise the
> user with the unwanted side-effects.

save-excursion is supposed to "Save point, mark, and current buffer;
execute BODY; restore those things" but I understand that you want to
avoid modifying the kill ring. Thanks.

Sarir

-- 
Sarir Khamsi
sarir.khamsi@raytheon.com


  reply	other threads:[~2009-11-02 22:17 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-11-02 15:19 Making code more Emacs Lisp-like Sarir Khamsi
2009-11-02 20:05 ` Joseph Brenner
2009-11-02 22:17   ` Sarir Khamsi [this message]
2009-11-03  0:39     ` Joseph Brenner

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