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Re: Function-scoped parameters?

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From: "Benjamin R. Haskell" <zsh@xxxxxxxxxx>
To: Bart Schaefer <schaefer@xxxxxxxxxxxxxxxx>
Subject: Re: Function-scoped parameters?
Date: Wed, 23 Feb 2011 16:27:22 -0500 (EST)
Cc: Zsh Users <zsh-users@xxxxxxx>
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On Wed, 23 Feb 2011, Bart Schaefer wrote:

On Wednesday, February 23, 2011, Benjamin R. Haskell <zsh@xxxxxxxxxx> wrote:
The use case is that I want to assign a local parameter 'temp' to beset to the name of a temporary file. If anything goes wrong in thefunction, I'd like that temporary file to be removed, but I don'twant '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

References:
- Function-scoped parameters?
  - From: Benjamin R. Haskell
- Re: Function-scoped parameters?
  - From: Bart Schaefer

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