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Date: Sat, 19 Oct 2013 23:53:33 +0200
From: Jilles Tjoelker <jilles@stack.nl>
To: Colin Percival <cperciva@freebsd.org>
Subject: Re: svn commit: r256767 - head/usr.sbin/freebsd-update
Message-ID: <20131019215333.GA1489@stack.nl>
References: <201310190940.r9J9eUiT027701@svn.freebsd.org>
 <5262E5A7.5020608@freebsd.org>
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Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org,
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 Dag-Erling =?iso-8859-1?Q?Sm=F8rgrav?= <des@FreeBSD.org>
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On Sat, Oct 19, 2013 at 01:03:51PM -0700, Colin Percival wrote:
> On 10/19/13 02:40, Dag-Erling Smørgrav wrote:
> > -	P="[-+./:=%@_[[:alnum:]]"
> > +	P="[-+./:=%@_[~[:alnum:]]"

> Shouldn't this be
> 	P="[-+./:=%@_~[[:alnum:]]"
> instead?

That is equivalent. Both versions match an open square bracket in
addition to the other characters.

[:class:] can be used within [...] to match a named character class.
Although it is common to see [[:class:]] in an RE or shell pattern, the
sequences '[[' and ']]' are not required.

-- 
Jilles Tjoelker