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Re: zsh adds empty string to local parameter when += is used

X-seq: zsh-workers 47853
From: Roman Perepelitsa <roman.perepelitsa@xxxxxxxxx>
To: Peter Stephenson <p.w.stephenson@xxxxxxxxxxxx>
Cc: jamil bio <jamilbio20@xxxxxxxxx>, Zsh hackers list <zsh-workers@xxxxxxx>
Subject: Re: zsh adds empty string to local parameter when += is used
Date: Wed, 20 Jan 2021 17:29:08 +0100
Archived-at: <https://zsh.org/workers/47853>
Archived-at: <http://www.zsh.org/sympa/arcsearch_id/zsh-workers/2021-01/CAN%3D4vMog15UwMBBt_E9wx5G5gfy7vKZy4NYz-0VU339Lqhi3pw%40mail.gmail.com>
In-reply-to: <1204351835.3138771.1611159963588@mail2.virginmedia.com>
List-id: <zsh-workers.zsh.org>
References: <a7422e8c-48cd-23eb-8fa9-66a85f0a9ad5@gmail.com> <1204351835.3138771.1611159963588@mail2.virginmedia.com>

On Wed, Jan 20, 2021 at 5:26 PM Peter Stephenson
<p.w.stephenson@xxxxxxxxxxxx> wrote:
>
> Yes, this is a bit weird, but it's explicable.

Does the following look inconsistent though?

    % zsh -fc 'typeset x; x+=(); typeset -p x'
    typeset -a x=( '' )
    % zsh -fc 'typeset x; typeset -a x; typeset -p x'
    typeset -a x=(  )

Roman.

References:
- zsh adds empty string to local parameter when += is used
  - From: jamil bio
- Re: zsh adds empty string to local parameter when += is used
  - From: Peter Stephenson

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