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From: Ray Andrews <rayandrews@eastlink.ca>
To: zsh-users@zsh.org
Subject: Re: unshift
Date: Mon, 1 Apr 2024 09:30:45 -0700	[thread overview]
Message-ID: <70130b1b-696b-4a33-afb4-be96ae60d592@eastlink.ca> (raw)
In-Reply-To: <CAH+w=7bzhpixaNX9O_hHHt9004W4SohTjY1yQ2J24Kh9=RQ6EQ@mail.gmail.com>

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On 2024-04-01 09:03, Bart Schaefer wrote:
> shift
> while [ "$1" ]; do
>    repeat 1 do
>      if [ a ]; then b; c; break; fi
>      if [ d ]; then e; f; break; fi
>      if [ g ]; then h; i; break; fi
>      ...
>    done
>    shift
> done
>
Ah!  So a 'break' quits the inner loop then hits the 'shift' which has 
the same effect as putting the shift at the top of the outer loop.  
That's very clever.  Never seen 'repeat' used in a real life way.  There 
are tools which aren't used often, but still very useful when needed.

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  reply	other threads:[~2024-04-01 16:31 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-04-01 13:52 unshift Ray Andrews
2024-04-01 13:54 ` unshift Mark J. Reed
2024-04-01 14:00   ` unshift Mark J. Reed
2024-04-01 14:23   ` unshift Ray Andrews
2024-04-01 16:03   ` unshift Stephane Chazelas
2024-04-01 14:38 ` unshift Roman Perepelitsa
2024-04-01 16:11   ` unshift Ray Andrews
2024-04-01 16:20     ` unshift Roman Perepelitsa
2024-04-01 16:40       ` unshift Ray Andrews
2024-04-01 19:41         ` unshift Bart Schaefer
2024-04-01 22:52           ` unshift Ray Andrews
2024-04-01 16:03 ` unshift Bart Schaefer
2024-04-01 16:30   ` Ray Andrews [this message]
2024-04-02 12:41 ` unshift Dennis Eriksen
2024-04-02 14:01   ` unshift Ray Andrews
2024-04-02 19:59     ` unshift Roman Perepelitsa
2024-04-02 20:24       ` unshift Ray Andrews

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