From: Herbert Xu <herbert@gondor.apana.org.au>
To: Dimitar Yurukov <mscalindt@gmail.com>
Cc: mscalindt@gmail.com, dash@vger.kernel.org, harald@gigawatt.nl
Subject: Re: [PATCH v2] expand: Recognize '^' as a negation character in BE
Date: Mon, 19 Jul 2021 13:13:28 +0800 [thread overview]
Message-ID: <20210719051328.GA16142@gondor.apana.org.au> (raw)
In-Reply-To: <20210716125027.18824-1-mscalindt@gmail.com>
Dimitar Yurukov <mscalindt@gmail.com> wrote:
> While performing bracket expression ('[...]'), DASH recognizes only '!'
> as a special character for negation/inversion, but POSIX specifies '^'.
>
> The specification (2018 edition):
> "
> 9.3.3 BRE Special Characters
>
> ^ The <circumflex> shall signify a non-matching list expression when it
> occurs first in a list, immediately following a <left-square-bracket>
> (see RE Bracket Expression).
> "
This is incorrect and ^ cannot be used in a portable script.
Cheers,
--
Email: Herbert Xu <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
prev parent reply other threads:[~2021-07-19 5:13 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-16 9:42 [PATCH] expand: Recognize '^' as a negation character in BE Dimitar Yurukov
2021-07-16 10:00 ` Harald van Dijk
2021-07-16 12:46 ` Dimitar Yurukov
2021-07-16 12:50 ` [PATCH v2] " Dimitar Yurukov
2021-07-19 5:13 ` Herbert Xu [this message]
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