From: David Kastrup <dak@gnu.org>
Subject: Re: narrow question
Date: Wed, 27 Sep 2006 13:53:33 +0200 [thread overview]
Message-ID: <85irj9r0ea.fsf@lola.goethe.zz> (raw)
In-Reply-To: barmar-4A2EA1.13512326092006@comcast.dca.giganews.com
Barry Margolin <barmar@alum.mit.edu> writes:
> In article <mailman.7430.1159275829.9609.help-gnu-emacs@gnu.org>,
> ray <hantechs@gmail.com> wrote:
>
>> I have learned to use narrow-to-region to narrow a buffer. But how can I
>> determine whether a buffer is narrowed with elisp? Thanks.
>
> (defun buffer-narrowed-p ()
> (/= (- (point-max-marker) (point-min-marker))
> (buffer-size)))
That is a bad idea since it creates unnecessary markers which slow
down editing until they are garbage-collected. Just use (point-max)
and (point-min) instead.
--
David Kastrup, Kriemhildstr. 15, 44793 Bochum
next prev parent reply other threads:[~2006-09-27 11:53 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <mailman.7430.1159275829.9609.help-gnu-emacs@gnu.org>
2006-09-26 17:51 ` narrow question Barry Margolin
2006-09-27 11:45 ` ray
2006-09-27 11:53 ` David Kastrup [this message]
2006-09-26 13:03 ray
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