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From: Daniel Shahaf <d.s@daniel.shahaf.name>
To: Vin Shelton <acs@alumni.princeton.edu>, zsh-users@zsh.org
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In-Reply-To: <CACeGjnVYHHZHrGcZzMeaEq-feeuG9XShK5AM9XzAs8t+W6xCZA@mail.gmail.com>
Date: Tue, 05 Sep 2017 16:17:07 +0000
References: <CACeGjnVYHHZHrGcZzMeaEq-feeuG9XShK5AM9XzAs8t+W6xCZA@mail.gmail.com>
Subject: Re: Interpret Parameter Value at Time of Function Definition

Vin Shelton wrote on Tue, 05 Sep 2017 09:47 -0400:
> $ aaa=bbb
> $ function t {
>     print aaa = \"$aaa\"
>   }
> 
> I would like to interpret $aaa at read time, so that:
> 
>     aaa=ccc t
> 
> would print:
> 
>     aaa = "bbb"

Declare aaa local inside the function:

t() {
  local aaa=bbb
  typeset -p aaa
}
aaa=ccc t

... but then, if t() changes $aaa the changes won't be visible outside t().