From: Ben Bacarisse <ben.usenet@bsb.me.uk>
To: help-gnu-emacs@gnu.org
Subject: Re: re-search-forward hangs
Date: Mon, 30 Jul 2018 15:36:16 +0100 [thread overview]
Message-ID: <87bmao4wpr.fsf@bsb.me.uk> (raw)
In-Reply-To: mailman.4412.1532953259.1292.help-gnu-emacs@gnu.org
Andreas Röhler <andreas.roehler@easy-emacs.de> writes:
> emacs -Q, when evaluating from in scratch-buffer
>
> (while (re-search-forward "" nil t 1))
>
> Emacs hangs.
>
> Same with plain
>
> (while (search-forward "" nil t 1))
>
> Expect it terminating.
Why do you expect a difference? I would expect both to loop
indefinitely (and they do in my slightly older Emacs).
> Are there reasons for this?
Both loop because the match always succeeds. Neither match moves point
so neither can fail.
--
Ben.
next prev parent reply other threads:[~2018-07-30 14:36 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <mailman.4412.1532953259.1292.help-gnu-emacs@gnu.org>
2018-07-30 13:22 ` re-search-forward hangs Robert Girault
2018-07-30 14:36 ` Ben Bacarisse [this message]
2018-07-30 12:24 Andreas Röhler
2018-07-30 14:33 ` Eli Zaretskii
2018-07-30 19:29 ` Andreas Röhler
[not found] ` <mailman.4430.1532978809.1292.help-gnu-emacs@gnu.org>
2018-07-30 19:35 ` Robert Girault
2018-07-30 20:15 ` Andreas Röhler
2018-07-30 17:53 ` Stefan Monnier
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