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From: William Park <opengeometry@yahoo.ca>
To: Zsh Users <zsh-users@zsh.org>
Subject: (question) C struct-like template to read positional arguments?
Date: Sun, 17 Jan 2021 20:52:52 -0500	[thread overview]
Message-ID: <20210118015252.GA3550@node1.localdomain> (raw)
In-Reply-To: <20210118015252.GA3550.ref@node1.localdomain>

Hi all,

I have question...

In C struct like,
    struct {
	char aa[32], bb[32], skip[128], cc[7], dd[32], ...;
you just access variables, and compiler will do the offsetting.

Can zsh do something similar?

That is, you could probably build the template like
	aa 32
	bb 32
	skip 128
	cc 7
	dd 32
and read into them, then just use variables, without worrying about
offsets.  So, ${cc[@]} would be equivalent to ${@:193:7}, and ${cc[1]}
would be same as ${194}.

I know I can do
    aa=( "${@:1:32}" )
    bb=( "${@:33:32}" )
    cc=( "${@:193:7}" )
But, it's so easy to make mistake and very difficult to catch it.

William Park <opengeometry@yahoo.ca>

       reply	other threads:[~2021-01-18  1:53 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20210118015252.GA3550.ref@node1.localdomain>
2021-01-18  1:52 ` William Park [this message]
2021-01-18 21:39   ` Bart Schaefer

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