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From: Peter Stephenson <p.w.stephenson@ntlworld.com>
To: Sebastian Gniazdowski <sgniazdowski@gmail.com>,
	Zsh Users <zsh-users@zsh.org>
Subject: Re: Is there a way to make global aliases more available?
Date: Wed, 18 Jan 2023 17:16:06 +0000 (GMT)	[thread overview]
Message-ID: <825909979.732965.1674062166642@mail.virginmedia.com> (raw)
In-Reply-To: <CAKc7PVD1tuyRqjVkmVzdRngsYTKdofR1VQMQrbR18_7DsaNvLA@mail.gmail.com>

> On 18/01/2023 14:54 Sebastian Gniazdowski <sgniazdowski@gmail.com> wrote:
> I define a global alias:
> 
> alias -g EMPTYSTR='[[:space:][:INCOMPLETE:][:INVALID:]$'\e']#'
> 
> to then use it in [[ "" == EMPTYSTR ]]. It works, however any addition to the alias name makes it inactive, e.g.:
> 
> [[ "" == (EMPTYSTR) ]]
> [[ "" == (#b)(EMPTYSTR) ]]
> 
> won't work. Is there any way to somehow improve the alias recognizability?

No, aliases are by design very limited things that get replaced on input
before any parsing is done.

It would be far simpler to use a variable; the following seems to work.

EMPTYSTR='[[:space:][:INCOMPLETE:][:INVALID:]$'\e']#'
[[ " " = (#b)(${~EMPTYSTR}) ]]

pws


  reply	other threads:[~2023-01-18 17:19 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-01-18 14:54 Sebastian Gniazdowski
2023-01-18 17:16 ` Peter Stephenson [this message]
2023-01-18 19:18   ` Ray Andrews

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