From: Ray Andrews <rayandrews@eastlink.ca>
To: zsh-users@zsh.org
Subject: Re: empty pipes
Date: Mon, 12 Dec 2022 06:01:55 -0800 [thread overview]
Message-ID: <2182a97d-fe76-9f37-7f99-1f3b3564795a@eastlink.ca> (raw)
In-Reply-To: <CAH+w=7YcQ7-QbTvZLjk3=hCKweasrXJxwO6y8vZzaUGrvxjteA@mail.gmail.com>
On 2022-12-11 19:40, Bart Schaefer wrote:
>
> That's why you have e.g. ${filter:-cat}.
>
Works. Interesting that property 'cat' has of doing nothing there but
politely moving the stream forward. I don't recall ever using that
construction before but the sweet thing is that I now know where to look
for information about it. Such wealth in the parameter expansions. BTW
thanks to our previous discussions concerning 'tree' I already know that
my $filter must be an array quoted so as to present the correct
invisible structure. Easy once you understand the issue.
BTW, do we have hard spaces? In certain columnizing situations an empty
field is a problem so a field of hard spaces would hold the position
while showing nothing.
next prev parent reply other threads:[~2022-12-12 14:03 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-12-12 3:17 Ray Andrews
2022-12-12 3:40 ` Bart Schaefer
2022-12-12 14:01 ` Ray Andrews [this message]
2022-12-13 2:04 ` Bart Schaefer
2022-12-14 13:05 ` Are there zsh error message explanation Xiao Ling XL Chen
2022-12-15 21:18 ` Daniel Shahaf
2022-12-16 3:28 ` Bart Schaefer
2022-12-16 3:53 ` Ray Andrews
2022-12-16 4:07 ` Bart Schaefer
2022-12-16 14:16 ` Ray Andrews
2022-12-16 12:47 ` Daniel Shahaf
2022-12-16 14:00 ` Ray Andrews
2022-12-16 1:17 ` empty pipes Ellenor Bjornsdottir
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