From: Junio C Hamano <gitster@pobox.com>
Date: Wed, 15 Dec 2010 02:56:31 GMT
Subject: Re: [PATCH 3/3] get_sha1: support ref^{/regex} syntax
Message-ID: <7v62uvrbfk.fsf@alter.siamese.dyndns.org>
In-Reply-To: <AANLkTikgXAg9+0TXzpFH7LT1yD2sV5Dp=025GbudnY5S@mail.gmail.com>

Nguyen Thai Ngoc Duy <pclouds@gmail.com> writes:

> Perhaps we should just reject this case. No sane body would ever use it.

I'd have to say that dismissing before even trying is not a very
disciplined attitude.

Shouldn't an empty regexp simply match everything?  Even on FBSD8,

    $ grep '' /etc/passwd

seems to show everything.  How hard would it be to do this in the codepath
we are discussing?