From: Oliver Kiddle <okiddle@yahoo.co.uk>
To: zsh-workers@sunsite.dk
Subject: Re: PATCH: zsh-4.2.1: unset does not follow spec
Date: Thu, 23 Sep 2004 11:26:39 +0200 [thread overview]
Message-ID: <23277.1095931599@trentino.logica.co.uk> (raw)
In-Reply-To: <Pine.LNX.4.61.0409230039020.21324@toltec.zanshin.com>
Bart wrote:
> > BTW, the behaviour of unset should, I think, depend on the UNSET option.
> > If UNSET is off, then unset should report an error if the variable is
> > already unset.
>
> This is actually what I was going to suggest.
Nice try but the unset option (or nounset to be precise) is one of the
options defined in the POSIX specification.
Even if that were not the case, I would disagree. The unset option deals
with variable expansions and I don't see why it would be useful to
overload it with control of this issue. A user's preference on the two
issues wouldn't necessarily correlate.
The specification looks fairly clear to me (zsh is wrong) and I can't
see why anyone would be sufficiently attached to the old behaviour to
want an option for it.
> (Is it time for "emulate posix"?)
Possibly.
How would it differ from "emulate sh"?
Oliver
next prev parent reply other threads:[~2004-09-23 9:41 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-09-22 15:04 Sean C. Farley
2004-09-22 15:28 ` Bart Schaefer
2004-09-22 15:37 ` Sean C. Farley
2004-09-22 18:55 ` Matthias B.
2004-09-23 7:54 ` Bart Schaefer
2004-09-23 9:20 ` Peter Stephenson
2004-09-23 9:26 ` Oliver Kiddle [this message]
2004-09-23 16:14 ` Bart Schaefer
2004-09-22 15:44 ` Peter Stephenson
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=23277.1095931599@trentino.logica.co.uk \
--to=okiddle@yahoo.co.uk \
--cc=zsh-workers@sunsite.dk \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this public inbox
https://git.vuxu.org/mirror/zsh/
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).