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Re: idea about negative indexed array keys


From: Eli Schwartz
Subject: Re: idea about negative indexed array keys
Date: Fri, 12 Mar 2021 17:11:19 -0500

On 3/12/21 4:58 PM, Alex fxmbsw7 Ratchev wrote:
> i saw, ${arr[-1]} == syntax error
> 
> what about implenting it, -0 is the last -1 is the second last etc
> 
> such negative values are already in ${..:<>:<>} implented, as a good small
> statement for the same style

How did you accomplish the task of getting a syntax error for this? I
managed it with:

$ declare arr=(foo bar baz "syntax error")
$ echo "${arr[-1]}"; echo "${arr[-2]}"
syntax error
baz

-- 
Eli Schwartz
Arch Linux Bug Wrangler and Trusted User

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