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Date: Thu, 28 Jun 2012 22:20:13 GMT
Message-Id: <201206282220.q5SMKDVs069884@freefall.freebsd.org>
To: freebsd-standards@FreeBSD.org
From: "Ronald F. Guilmette" <rfg@tristatelogic.com>
Cc: 
Subject: Re: bin/169500: /bin/expr improperly requires forward slash to be
	escaped
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The following reply was made to PR bin/169500; it has been noted by GNATS.

From: "Ronald F. Guilmette" <rfg@tristatelogic.com>
To: Garrett Wollman <wollman@hergotha.csail.mit.edu>
Cc: freebsd-gnats-submit@freebsd.org
Subject: Re: bin/169500: /bin/expr improperly requires forward slash to be escaped
Date: Thu, 28 Jun 2012 15:11:55 -0700

 In message <201206280136.q5S1aOQO093902@hergotha.csail.mit.edu>, you wrote:
 
 >In article <20120627214105.A1EA35081B@segfault.tristatelogic.com>,
 >rfg@tristatelogic.com writes:
 >
 >>According to my reading of Sections 2.8.3.1.1 and 2.8.3.1.2 of the ANSI/IEEE
 >>standard 1003.2, a forward slash character (/) is an "ordinary" basic
 >>regular expression (BRE) character, and as such can be used in a BRE alone
 >>to match itself.
 >
 >IEEE Std.1003.2 was obsoleted by the publication of IEEE
 >Std.1003.1-2001; your reference is at least fifteen years old.
 
 Yes.  My bad.  Sorry.
 
 (These publications are quite expensive, as you may know, and thus, I have
 not updated mine in quite some time.)
 
 >>As far as I can tell, backslash-escaping of this specific character
 >>should not be required within BREs.
 >
 >Nothing to do with the BRE-ness.  As the 2001 edition of the standard
 >states (page 429, lines 16598-16599):
 >
 >	A string argument is an argument that cannot be identified as
 >	an integer argument or as one of the expression operator
 >	symbols shown in the OPERANDS section.
 
 Humm... OK.  How do I retract my PR?