From: Vincent Lefevre <vincent@vinc17.net>
To: zsh-workers@zsh.org
Subject: Re: behavior of test true -a \( ! -a \)
Date: Mon, 25 Mar 2024 11:23:54 +0100 [thread overview]
Message-ID: <20240325102354.GA617604@cventin.lip.ens-lyon.fr> (raw)
In-Reply-To: <CAH+w=7Y5isnk+tCFWkjhw7e7d9Q7X_zeMqtOHps9SfX3zvsBJg@mail.gmail.com>
On 2024-03-23 15:41:33 -0700, Bart Schaefer wrote:
> On Sat, Mar 23, 2024 at 3:20 PM Vincent Lefevre <vincent@vinc17.net> wrote:
> >
> > On 2024-03-23 14:48:36 -0700, Bart Schaefer wrote:
> > > I'd therefore argue that it's actually
> > >
> > > % test \( ! -a \)
> > >
> > > that is wrong
> >
> > POSIX specifies what happens with up to 4 arguments.
>
> Ok, but
>
> % test \( ! -a \) \)
>
> has five and
>
> % test \( ! -a \) -a true
>
> has six, and in neither case are the "first four" interpreted as you
> would have the "last four" interpreted in
>
> % test true -a \( ! -a \)
I meant that
test \( ! -a \)
has four, thus fully specified and not wrong.
Concerning
test true -a \( ! -a \)
I would say that if you decide that the first "-a" is an "and",
then after this "-a", there remain exactly 4 arguments, so that
for *consistency*, I think that the remaining 4 arguments should
be interpreted exactly as in
test \( ! -a \)
--
Vincent Lefèvre <vincent@vinc17.net> - Web: <https://www.vinc17.net/>
100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/>
Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)
next prev parent reply other threads:[~2024-03-25 10:24 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-21 10:07 Vincent Lefevre
2024-03-21 10:28 ` Peter Stephenson
2024-03-21 11:04 ` Vincent Lefevre
2024-03-21 11:29 ` Peter Stephenson
2024-03-21 12:18 ` Vincent Lefevre
2024-03-21 12:25 ` Peter Stephenson
2024-03-21 19:06 ` Bart Schaefer
2024-03-22 5:02 ` Bart Schaefer
2024-03-25 16:38 ` Peter Stephenson
2024-03-25 17:36 ` Bart Schaefer
2024-04-03 13:59 ` Vincent Lefevre
2024-03-21 17:39 ` Bart Schaefer
2024-03-23 21:48 ` Bart Schaefer
2024-03-23 22:20 ` Vincent Lefevre
2024-03-23 22:41 ` Bart Schaefer
2024-03-23 23:33 ` Lawrence Velázquez
2024-03-24 0:14 ` Bart Schaefer
2024-03-24 2:52 ` Lawrence Velázquez
2024-03-25 10:23 ` Vincent Lefevre [this message]
2024-03-25 15:21 ` Bart Schaefer
2024-03-25 17:33 ` Vincent Lefevre
2024-03-25 17:43 ` Bart Schaefer
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