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Date: Tue, 19 Aug 2008 09:50:55 +0400
From: Yuri Pankov <yuri.pankov@gmail.com>
To: freebsd-current@freebsd.org
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Subject: regex regression?
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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)


Yuri