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Date:      Tue, 19 Aug 2008 10:49:23 +0400
From:      Stanislav Sedov <stas@FreeBSD.org>
To:        Yuri Pankov <yuri.pankov@gmail.com>
Cc:        freebsd-current@freebsd.org
Subject:   Re: regex regression?
Message-ID:  <20080819104923.b2274b5e.stas@FreeBSD.org>
In-Reply-To: <20080819055055.GC1758@darklight.homeunix.org>
References:  <20080819055055.GC1758@darklight.homeunix.org>

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[-- Attachment #1 --]
On Tue, 19 Aug 2008 09:50:55 +0400
Yuri Pankov <yuri.pankov@gmail.com> mentioned:

> Hi,
> 
> Looks like regcomp() doesn't detect invalid backreferences on
> -CURRENT, though it works normally on 6.3-RELEASE.
> 
> simple testcase:
> 
> 6.3-RELEASE:
> $ echo test | sed 's/test/\1/'
> sed: 1: "s/test/\1/": \1 not defined in the RE
> 
> -CURRENT:
> $ echo test | sed 's/test/\1/'
> Segmentation fault (core dumped)
>

7-STABLE is also affected. Seems that regression was in r171284.

-- 
Stanislav Sedov
ST4096-RIPE

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