From: Chet Ramey <chet.ramey@case.edu>
To: Bart Schaefer <schaefer@brasslantern.com>
Cc: zsh-workers@zsh.org, chet.ramey@case.edu
Subject: Re: Builtin test and parsing of conditionals
Date: Wed, 04 Sep 2013 16:15:04 -0400 [thread overview]
Message-ID: <522794C8.1040804@case.edu> (raw)
In-Reply-To: <130904103940.ZM28454@torch.brasslantern.com>
On 9/4/13 1:39 PM, Bart Schaefer wrote:
> } So where does the
> } implicit comparison come from? If -a were taken as high precedence you
> } might read it as
> }
> } test -n ! -a n !
> } test -n ! -a n !
>
> Presuming you mean -a -n there, this is exactly how the austin-group
> thread claims it should be interpreted, and is reportedly how ksh and
> bash and GNU /usr/bin/test all interpret it.
The rules, at least through four arguments, are well-defined.
http://pubs.opengroup.org/onlinepubs/9699919799/utilities/test.html#tag_20_128
-a and -o are binary primaries.
Chet
--
``The lyf so short, the craft so long to lerne.'' - Chaucer
``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, ITS, CWRU chet@case.edu http://cnswww.cns.cwru.edu/~chet/
prev parent reply other threads:[~2013-09-04 20:21 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-04 16:15 Bart Schaefer
2013-09-04 16:31 ` Peter Stephenson
2013-09-04 17:39 ` Bart Schaefer
2013-09-04 19:09 ` Peter Stephenson
2013-09-05 14:25 ` Bart Schaefer
2013-09-06 19:20 ` Peter Stephenson
2013-09-04 20:15 ` Chet Ramey [this message]
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