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From: "Jesper Nygårds" <jesper.nygards@gmail.com>
To: Zsh Users <zsh-users@zsh.org>
Subject: Re: Number of non-empty elements
Date: Wed, 16 Sep 2015 07:16:29 +0200	[thread overview]
Message-ID: <CABZhJg9iLYO3Egj2gbVHKrRVXgusP-=tDPShs6g6ygk1qjYOyg@mail.gmail.com> (raw)
In-Reply-To: <20150915214342.GD5696@tarsus.local2>

[-- Attachment #1: Type: text/plain, Size: 620 bytes --]

Thank you, Daniel. That works great.


On Tue, Sep 15, 2015 at 11:43 PM, Daniel Shahaf <d.s@daniel.shahaf.name>
wrote:

> Jesper Nygårds wrote on Tue, Sep 15, 2015 at 19:15:01 +0200:
> > I have a fairly long function where the result is stored in an array
> called
> > "mylines".
> >
> > I want the function to return normally (status zero) if "mylines"
> contains
> > at least one non-empty element, and with non-zero otherwise.
>
>     return $(( $mylines[(I)?*] > 0 )0
>
> The (I) modifier interprets the key as a pattern and returns the highest
> index of a match, or 0 if there was no match.
>

      reply	other threads:[~2015-09-16  5:16 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-09-15 17:15 Jesper Nygårds
2015-09-15 21:43 ` Daniel Shahaf
2015-09-16  5:16   ` Jesper Nygårds [this message]

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