From: Emanuel Berg <moasenwood@zoho.eu>
To: zsh-users@zsh.org
Subject: Re: shuffle array
Date: Fri, 29 Nov 2019 09:44:40 +0100 [thread overview]
Message-ID: <86v9r3ul53.fsf@zoho.eu> (raw)
In-Reply-To: <867e3jxtao.fsf@zoho.eu>
This seems to work, I got help on
#zsh@irc.freenode.net, then rewrote it a bit as
I'm not familiar with the 'typeset' and
'integer' commands, also the parenthesis syntax
is unknown to me... but anyway, source at
https://dataswamp.org/~incal/conf/.zsh/misc
Relevant part yanked:
# from: http://mika.l3ib.org/code/zsh-functions/shufflearray
swap-array () {
zmodload zsh/mathfunc
local -a reply
reply=($@)
local -a swap
local n=$#reply
local k
for ((; n > 0; n-- )); do
k=$((1 + int(rand48()*n)))
swap=$reply[k]
reply[k]=$reply[n]
reply[n]=$swap
done
echo $reply
}
--
underground experts united
http://user.it.uu.se/~embe8573
https://dataswamp.org/~incal
prev parent reply other threads:[~2019-11-29 8:45 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-29 3:20 Emanuel Berg
2019-11-29 6:42 ` Marc Chantreux
2019-11-29 8:19 ` Emanuel Berg
2019-11-29 8:43 ` Marc Chantreux
2019-11-29 8:50 ` Emanuel Berg
2019-11-29 13:38 ` Clint Adams
[not found] ` <8636e7w0w9.fsf__36104.0529723809$1575015640$gmane$org@zoho.eu>
2019-12-01 20:07 ` Stephane Chazelas
2019-12-01 21:22 ` Emanuel Berg
2019-12-01 21:25 ` Emanuel Berg
2019-12-01 23:46 ` Daniel Shahaf
2019-12-02 4:10 ` Emanuel Berg
2019-12-01 23:38 ` Daniel Shahaf
[not found] ` <20191201233848.7selcpkvenlu65px__33142.5388505281$1575243619$gmane$org@tarpaulin.shahaf.local2>
2019-12-02 14:14 ` Stephane Chazelas
2019-12-02 14:29 ` Roman Perepelitsa
2019-11-29 8:44 ` Emanuel Berg [this message]
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