From: Ronald Fischer <ynnor@mm.st>
To: Peter Stephenson <p.stephenson@samsung.com>, zsh-workers@zsh.org
Subject: Re: Bug in parameter expansion with :- ?
Date: Tue, 10 Jan 2017 16:55:43 +0100 [thread overview]
Message-ID: <1484063743.4187904.843219497.103F256C@webmail.messagingengine.com> (raw)
In-Reply-To: <20170110154318.58b2b994@pwslap01u.europe.root.pri>
On Tue, Jan 10, 2017, at 16:43, Peter Stephenson wrote:
> On Tue, 10 Jan 2017 16:35:00 +0100
> Ronald Fischer <ynnor@mm.st> wrote:
>
> > This expands correctly to a '+':
> >
> > ${unset_variable:-+}
> >
> > This however doesn't expand to a '-', but to the empty string:
> >
> > ${unset_variable:--}
>
> You may be getting into confusions with options to builtins rather than
> the expansion.
>
> % print -r -- ${unset_variable:--}
> -
Yes I do! You are right - not a bug!
Ronald
next prev parent reply other threads:[~2017-01-10 15:55 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20170110153530epcas3p444d88e1dff85a69371df2472330b006b@epcas3p4.samsung.com>
2017-01-10 15:35 ` Ronald Fischer
2017-01-10 15:43 ` Peter Stephenson
2017-01-10 15:55 ` Ronald Fischer [this message]
2017-01-10 18:41 ` Nikolay Aleksandrovich Pavlov (ZyX)
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