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

X-seq: zsh-workers 47855
From: jamil bio <jamilbio20@xxxxxxxxx>
To: Daniel Shahaf <d.s@xxxxxxxxxxxxxxxxxx>
Cc: zsh-workers@xxxxxxx
Subject: Re: zsh adds empty string to local parameter when += is used
Date: Wed, 20 Jan 2021 13:40:51 -0300
Archived-at: <https://zsh.org/workers/47855>
Archived-at: <http://www.zsh.org/sympa/arcsearch_id/zsh-workers/2021-01/db94a87e-a417-8c1c-664e-ca8b956007be%40gmail.com>
In-reply-to: <20210120163136.GB5930@tarpaulin.shahaf.local2>
List-id: <zsh-workers.zsh.org>
References: <a7422e8c-48cd-23eb-8fa9-66a85f0a9ad5@gmail.com> <20210120163136.GB5930@tarpaulin.shahaf.local2>

Thanks Peter S for your amazing explanation. That is enough for me.

I had given up on getting an explanation but that is excellent news.

I will be using `local -a` and your other suggestions in the future.

Cheers,

J

On 20/01/2021 13:31, Daniel Shahaf wrote:

jamil bio wrote on Wed, Jan 20, 2021 at 13:16:54 -0300:

         echo "${#files[@]} -- ${files[@]}"

2 --  file1
3 --  file1 file2
4 --  file1 file2 file3

For future reference, there's «typeset -p files» and «print -r -- "${(q)files}"».

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: Daniel Shahaf

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