From: Ray Andrews <rayandrews@eastlink.ca>
To: zsh-users@zsh.org
Subject: Re: why is eval needed?
Date: Sat, 19 Nov 2022 11:12:43 -0800 [thread overview]
Message-ID: <352823cc-954a-fa79-d830-d69d593b1c02@eastlink.ca> (raw)
In-Reply-To: <20221119164852.hwujmufa6hn5lotr@chazelas.org>
On 2022-11-19 08:48, Stephane Chazelas wrote:
> And you're calling tree with only one "-L 2" argument while you
> want to call it with 2 arguments: -L and 2.
Right, that's what I figured out. The hard part is 'seeing' these
invisible boundaries. But I'm pleased with myself that I did sort it out.
Clinton:
Another option is
local level='-L 2'
tree $=level
Word splitting level gives the results you want
Excellent. Yes, that's understandable. Main thing is to realize
that 'tree' want's two arguments there, not the intuitive single argument.
Roman:
You can do the reverse transformation--from array to scalar--like this:
local array=(...)
local scalar=${(@q)array}
... Finally I see a use of '(q)' that makes sense to me.
next prev parent reply other threads:[~2022-11-19 19:13 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-19 14:34 Ray Andrews
2022-11-19 14:43 ` Roman Perepelitsa
2022-11-19 17:02 ` Ray Andrews
2022-11-19 17:10 ` Roman Perepelitsa
2022-11-19 18:02 ` Clinton Bunch
2022-11-19 18:18 ` Roman Perepelitsa
2022-11-19 16:48 ` Stephane Chazelas
2022-11-19 19:12 ` Ray Andrews [this message]
2022-11-19 19:50 ` Lawrence Velázquez
2022-11-19 22:21 ` Ray Andrews
2022-11-20 8:55 ` Stephane Chazelas
2022-11-20 13:47 ` Ray Andrews
2022-11-20 15:08 ` Stephane Chazelas
2022-11-20 16:27 ` Ray Andrews
2022-11-20 20:16 ` Stephane Chazelas
2022-11-20 22:31 ` Bart Schaefer
2022-11-21 2:13 ` Ray Andrews
2022-11-20 22:47 ` Ray Andrews
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