From: sergio <sergio@outerface.net>
To: zsh-users@zsh.org
Subject: zip arrays exclude empty elements
Date: Sat, 5 Sep 2020 01:03:47 +0300 [thread overview]
Message-ID: <0b12bc3e-6d96-db88-8e6c-2a3e1ca85c84@outerface.net> (raw)
I have an input string in form of 'A[-][B]' that I'd like to translate
as follows:
1: A-B -> -a A -b B
2: A- -> -a A
3: A -> -a A
4: -B -> -b B
5: empty -> empty
The solution I found:
tmp=("${(@s.-.)crop}")
echo ${tmp[1]:+-a $tmp[1]} ${tmp[2]:+-b $tmp[2]}
But possible there is clearer and simpler solution, like
o=(-a -b)
echo ${o:^tmp}
or even
echo ${(-a -b):^${(@s.-.)crop}}
--
sergio.
next reply other threads:[~2020-09-04 22:04 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-04 22:03 sergio [this message]
2020-09-06 0:21 ` Bart Schaefer
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