From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <zsh-workers-return-41979-mason-zsh=primenet.com.au@zsh.org>
Received: (qmail 27247 invoked by alias); 2 Nov 2017 20:11:42 -0000
Mailing-List: contact zsh-workers-help@zsh.org; run by ezmlm
Precedence: bulk
X-No-Archive: yes
List-Id: Zsh Workers List <zsh-workers.zsh.org>
List-Post: <mailto:zsh-workers@zsh.org>
List-Help: <mailto:zsh-workers-help@zsh.org>
List-Unsubscribe: <mailto:zsh-workers-unsubscribe@zsh.org>
X-Seq: 41979
Received: (qmail 21001 invoked by uid 1010); 2 Nov 2017 20:11:42 -0000
X-Qmail-Scanner-Diagnostics: from know-smtprelay-omc-2.server.virginmedia.net by f.primenet.com.au (envelope-from <p.w.stephenson@ntlworld.com>, uid 7791) with qmail-scanner-2.11 
 (clamdscan: 0.99.2/21882. spamassassin: 3.4.1.  
 Clear:RC:0(80.0.253.66):SA:0(-4.7/5.0):. 
 Processed in 5.882475 secs); 02 Nov 2017 20:11:42 -0000
X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on f.primenet.com.au
X-Spam-Level: 
X-Spam-Status: No, score=-4.7 required=5.0 tests=BAYES_00,RCVD_IN_DNSWL_NONE,
	RCVD_IN_MSPIKE_H2,SPF_PASS,T_DKIM_INVALID autolearn=ham autolearn_force=no
	version=3.4.1
X-Envelope-From: p.w.stephenson@ntlworld.com
X-Qmail-Scanner-Mime-Attachments: |
X-Qmail-Scanner-Zip-Files: |
X-Originating-IP: [86.21.219.59]
X-Authenticated-User: p.w.stephenson@ntlworld.com
X-Spam: 0
X-Authority: v=2.1 cv=C4wUsl7+ c=1 sm=1 tr=0 a=utowdAHh8RITBM/6U1BPxA==:117
 a=utowdAHh8RITBM/6U1BPxA==:17 a=L9H7d07YOLsA:10 a=9cW_t1CCXrUA:10
 a=s5jvgZ67dGcA:10 a=kj9zAlcOel0A:10 a=x7bEGLp0ZPQA:10 a=P5Q6L1DsAAAA:8
 a=uZvujYp8AAAA:8 a=iE7ApKBxRAhsShc4axQA:9 a=CjuIK1q_8ugA:10 a=DkUxev3uDU8A:10
 a=jxi25fIUQso1YTL4nQQM:22 a=SLzB8X_8jTLwj6mN0q5r:22
Date: Thu, 2 Nov 2017 20:04:29 +0000
From: Peter Stephenson <p.w.stephenson@ntlworld.com>
To: Martijn Dekker <martijn@inlv.org>
Cc: Zsh hackers list <zsh-workers@zsh.org>
Subject: Re: [PATCH] POSIXBUILTINS: quieten 'unset -f nonexistentfunc'
Message-ID: <20171102200429.05c32b88@ntlworld.com>
In-Reply-To: <8a9d23b7-63b5-37e0-9125-8bd5fdfc97e1@inlv.org>
References: <51c2b43e-a0d3-2e4d-15e8-b368c922beec@inlv.org>
	<8a9d23b7-63b5-37e0-9125-8bd5fdfc97e1@inlv.org>
X-Mailer: Claws Mail 3.11.1 (GTK+ 2.24.28; x86_64-redhat-linux-gnu)
MIME-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ntlworld.com;
	s=meg.feb2017; t=1509653069;
	bh=Kbh1N+EsoaEc4tQo4T7wFOnXT+DbA1nv7br3y4XVPek=;
	h=Date:From:To:Cc:Subject:In-Reply-To:References;
	b=SoRanWS9G//82/jX/Cd4Nj+Lm+wl07G/7kQN3aVs3wwnVrwKvUVMx8foWXivvjztJ
	 f6ywnm3uVvAqHX9UMtChQl67A/JBfkTOzQ81DIvI+BEiVOo9Btt2UVXjFpZK28Y6CK
	 SEZB7ADionnIQ4YQ7bbFfLz60IkCOJWKKRqQDwMjMYtLr4DvF7uBq1nUs5IU5oZukP
	 zxPMCRSm834oYs6pscsRkmUp6BsIp19lQqnAqL3go/nw0imrmb0i2r0CXi1KiDuZUU
	 9fF8g4oLYoC6RBcdEFFdUiNZb6XntvtowrhMKICYze6eFpcTuhx18fGFPPrMEp52f1
	 xJffneTo/sZVQ==

On Thu, 2 Nov 2017 19:04:40 +0000
Martijn Dekker <martijn@inlv.org> wrote:
> Op 11-10-17 om 19:44 schreef Martijn Dekker:
> > Doing 'unset -f' on an unset function outputs an error message and
> > causes an unsuccessful exit status. All other shells quietly ignore it.
> > POSIX specifies for 'unset' that "Unsetting a variable or function that
> > was not previously set shall not be considered an error [...]".
> > http://pubs.opengroup.org/onlinepubs/9699919799/utilities/V3_chap02.html#tag_18_29_03
> > 
> > If I have figured this out correctly, then the attached patch causes
> > 'unset -f nonexistent_function' to be quiet and return status 0 if
> > POSIXBUILTINS is active, without changing the behaviour of 'unfunction'
> > and 'unhash -f'.
> 
> Was this overlooked, or rejected?

Just got missed; I've committed it.

pws