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Date: Wed, 23 Feb 2011 16:27:22 -0500 (EST)
From: "Benjamin R. Haskell" <zsh@benizi.com>
To: Bart Schaefer <schaefer@brasslantern.com>
cc: Zsh Users <zsh-users@zsh.org>
Subject: Re: Function-scoped parameters?
In-Reply-To: <AANLkTi=tPgwaene4RU8os41oTU=cFWQcrFHJW=9ferNr@mail.gmail.com>
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References: <alpine.LNX.2.01.1102231257420.2792@hp> <AANLkTi=tPgwaene4RU8os41oTU=cFWQcrFHJW=9ferNr@mail.gmail.com>
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On Wed, 23 Feb 2011, Bart Schaefer wrote:

> On Wednesday, February 23, 2011, Benjamin R. Haskell <zsh@benizi.com> wrote:
>> 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.
>
> That's what "always" is for.
>
> dosomething() {
>  emulate -L zsh
>  local temp=$(mktemp)
>  setopt err_return
>  {
>    # ...
>  } always {
>    (( $+temp )) && rm $temp
>  }
> }
>

...  Whoa.  ...

Still wondering what other shells do, but man, I love Zsh.

-- 
Best,
Ben
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