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Re: regex support


From: Daniel Wright
Subject: Re: regex support
Date: Fri, 29 Apr 2005 00:37:27 +0200
User-agent: Gnus/5.11 (Gnus v5.11) Emacs/22.0.50 (gnu/linux)

Ryan Bowman <address@hidden> writes:

> Does emacs support the regex syntax {4} or any of it's
> variants?  I'd like to match a date a la 2005-04-19,
> so I'm trying (for the year part) something like
> "[0-9]{4}", but unless I'm doing something wrong it
> doesn't seem to be working.  Assuming it doesn't
> support that, is there a better way to match an string
> of digits of length 4 than "[0-9][0-9][0-9][0-9]"?

You need a couple of extra backslashes, try "[0-9]\{4\}".

There's a full description in the "regexps" node of the emacs info:

(info "(emacs)regexps");<--- hit C-x C-e here.

Greetings,
Daniel.





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