From: Bart Schaefer <schaefer@brasslantern.com>
To: Zsh Users <zsh-users@zsh.org>
Subject: Re: eval "echo \"$a=( \${(qq)$a[@]} )\""
Date: Sun, 14 Feb 2016 11:01:40 -0800 [thread overview]
Message-ID: <160214110140.ZM20676@torch.brasslantern.com> (raw)
In-Reply-To: <CAKc7PVDJPVa+AdJfesOUJ1pE5bcjaD2yD1w8kPDiSQ4-VVKaMA@mail.gmail.com>
On Feb 14, 6:16pm, Sebastian Gniazdowski wrote:
} Subject: eval "echo \"$a=( \${(qq)$a[@]} )\""
}
} say "a" holds array name "arr".
This is the reason ${(P)a} exists.
It wasn't fully functional for associative arrays until quite recently.
} Doing:
}
} % a=arr; arr=( a b "c d" ); eval "echo \"$a=( \${(qq)$a[@]} )\""
The [@] is being applied to $a, not to the expansion into "arr".
You meant (note one extra set of braces):
% a=arr; arr=( a b "c d" ); eval "echo \"$a=( \${(qq)${a}[@]} )\""
arr=( 'a' 'b' 'c d' )
But all you really need is
% echo $a=\(${(kvqqP)a}\)
arr=('a' 'b' 'c d')
For an associative array that works only in zsh-5.2 and later, but it
otherwise works for both associative and indexed arrays (the kv is just
ignored in the indexed case).
prev parent reply other threads:[~2016-02-14 19:01 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-14 17:16 Sebastian Gniazdowski
2016-02-14 19:01 ` Bart Schaefer [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=160214110140.ZM20676@torch.brasslantern.com \
--to=schaefer@brasslantern.com \
--cc=zsh-users@zsh.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this public inbox
https://git.vuxu.org/mirror/zsh/
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).