From: Peter Stephenson <pws@csr.com>
To: zsh-workers@sunsite.dk
Subject: Re: bug: $? after empty command
Date: Fri, 10 Jul 2009 10:02:28 +0100 [thread overview]
Message-ID: <20090710100228.783de399@news01> (raw)
In-Reply-To: <loom.20090709T214040-336@post.gmane.org>
On Thu, 9 Jul 2009 21:41:51 +0000 (UTC)
Eric Blake <ebb9@byu.net> wrote:
> Eric Blake <ebb9 <at> byu.net> writes:
>
> > But just from inspection,
> > it looks like it does not cover these related issues, which are both required
> > by POSIX to output 0:
> >
> > $ zsh -c 'false; . /dev/null; echo $?'
> > 1
> > $ zsh -c 'false; ``; echo $?'
> > 1
>
> And another one that POSIX requires to output 0:
>
> $ zsh -c 'false; sleep& echo $?'
> 1
These still need fixing.
Also, I don't think it affects POSIX, because empty functions aren't
required to work, but in zsh, "fn() { }" is valid, and I suspect "fn"
logically ought to reset the status, too---basically anywhere where you've
run a complex command with an empty list of commands in it.
--
Peter Stephenson <pws@csr.com> Software Engineer
CSR PLC, Churchill House, Cambridge Business Park, Cowley Road
Cambridge, CB4 0WZ, UK Tel: +44 (0)1223 692070
next prev parent reply other threads:[~2009-07-10 9:14 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-07-09 13:12 Eric Blake
2009-07-09 14:41 ` Peter Stephenson
2009-07-09 21:17 ` Eric Blake
2009-07-09 21:41 ` Eric Blake
2009-07-10 9:02 ` Peter Stephenson [this message]
2009-07-10 22:05 ` Peter Stephenson
2009-07-11 16:39 ` Peter Stephenson
2009-07-11 18:43 ` Bart Schaefer
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