From: Peter Stephenson <p.stephenson@samsung.com>
To: zsh-workers@zsh.org
Subject: Re: Bug in parameter expansion with :- ?
Date: Tue, 10 Jan 2017 15:43:18 +0000 [thread overview]
Message-ID: <20170110154318.58b2b994@pwslap01u.europe.root.pri> (raw)
In-Reply-To: <1484062500.4181388.843189521.58854935@webmail.messagingengine.com>
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:--}
-
pws
next prev parent reply other threads:[~2017-01-10 15:53 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 [this message]
2017-01-10 15:55 ` Ronald Fischer
2017-01-10 18:41 ` Nikolay Aleksandrovich Pavlov (ZyX)
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