From: Stephane Chazelas <stephane@chazelas.org>
To: Zsh hackers list <zsh-workers@zsh.org>
Subject: namerefs to var[idx]
Date: Fri, 8 Mar 2024 13:23:07 +0000 [thread overview]
Message-ID: <20240308132307.xvc3mh4uo67wvr4x@chazelas.org> (raw)
$ f() { typeset -nu v=$1; echo ${v[1]}; }
$ a=abcd
$ f 'a[2,3]'
b
OK but:
$ f() { typeset -nu v=$1; echo $v[1]; }
$ f 'a[2,3]'
f: no matches found: bc[1]
It's amazing that these actually work:
$ f() { typeset -nu v=$1; v[1]=foo; }
$ f a
$ echo $a
foo2345
$ f 'a[6]'
$ echo $a
foo23foo5
This one not really:
$ a=12345
$ f 'a[2,3]'
$ echo $a
1foo45
In that one could expect the first character of the "23"
substring to be changed to "foo", but I can see that's asking
quite a lot.
--
Stephane
next reply other threads:[~2024-03-08 13:23 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-08 13:23 Stephane Chazelas [this message]
2024-03-08 18:30 ` Bart Schaefer
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