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From: Mikael Magnusson <mikachu@gmail.com>
Date: Wed, 22 Apr 2020 18:47:37 +0200
Message-ID: <CAHYJk3SBrkdRHWSm=UM=de9+jSHCgpiGE-Q+0xf6OE3P0xQA5A@mail.gmail.com>
Subject: Re: field splitting
To: Pier Paolo Grassi <pierpaolog@gmail.com>
Cc: Zsh-Users List <zsh-users@zsh.org>
Content-Type: text/plain; charset="UTF-8"

On 4/22/20, Pier Paolo Grassi <pierpaolog@gmail.com> wrote:
> I am trying to use field splitting to get the first word of a line. I am
> using:
>
> echo -n ${${(s: :)line}[1]}
> when input contains spaces I get the first word as needed, eg:
> line is: /usr/bin/python  - /usr/bin/python /usr/local/bin/terminator
> what is printed:  /usr/bin/python
>
> when input does not contains spaces, however, all I get is the first
> character of the line, eg:
> line is: /usr/bin/zsh
> what is printed: /
>
> I have trid forcing the array expansion in various ways:
>   ${${(@s: :)line}[1]}
>   ${${(s: :)line[@]}[1]}
>   ${"${(s: :)line[@]}"[1]}
>
> but I  couldn't get the desidered behaviour
> what am I missing?

echo -n ${${(As: :)line}[1]}

-- 
Mikael Magnusson