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From: Sebastian Stark <seb-zsh@biskalar.de>
To: Benjamin R. Haskell <zsh@benizi.com>
Cc: Zsh Users <zsh-users@zsh.org>
Subject: Re: Function-scoped parameters?
Date: Wed, 23 Feb 2011 20:17:06 +0100	[thread overview]
Message-ID: <36E878CD-45EF-4BDE-8F1A-601A5CFD1E37@biskalar.de> (raw)
In-Reply-To: <alpine.LNX.2.01.1102231257420.2792@hp>


Am 23.02.2011 um 19:03 schrieb Benjamin R. Haskell:

> This doesn't work, probably unsurprisingly.  But is there a way to accomplish it?
> 
> function () {
>    emulate -L zsh
>    local x=asdf
>    trap 'echo x is ${x:-unset}' EXIT
> }
> 
> The use case is that I want to assign a local parameter 'temp' to be set to the name of a temporary file.  If anything goes wrong in the function, I'd like that temporary file to be removed, but I don't want 'temp' to leak out of the function scope.
> 
> e.g.:
> dosomething () {
>    emulate -L zsh
>    local temp=$(mktemp)
>    setopt err_return
>    trap '(( $+temp )) && rm $temp' EXIT
>    # ...
> }

Would "setopt localtraps" be of any help?


Sebastian


  parent reply	other threads:[~2011-02-23 20:02 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-02-23 18:03 Benjamin R. Haskell
2011-02-23 18:27 ` Benjamin R. Haskell
2011-02-23 19:17 ` Sebastian Stark [this message]
2011-02-23 20:01   ` Benjamin R. Haskell
2011-02-23 20:29 ` Bart Schaefer
2011-02-23 21:27   ` Benjamin R. Haskell

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