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Re: Problems using + with -f <file>

From: Andreas Schwab
Subject: Re: Problems using + with -f <file>
Date: Tue, 11 Jul 2006 23:16:11 +0200
User-agent: Gnus/5.110006 (No Gnus v0.6) Emacs/22.0.50 (gnu/linux)

"Gert Jan van Loo" <address@hidden> writes:

> I thought "[a-zA-Z0-9_]+" is part of the standard grep.
> Even if it is not why does \+ suddenly work? 

That's the difference between basic and extended regular expressions.
Just like \(\) vs ().  See the grep manual for details.


Andreas Schwab, SuSE Labs, address@hidden
SuSE Linux Products GmbH, Maxfeldstraße 5, 90409 Nürnberg, Germany
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