From: Mikael Magnusson <mikachu@gmail.com>
To: Eric Cook <llua@gmx.com>
Cc: zsh-workers@zsh.org
Subject: Re: RFC: expand $'' within heredocs
Date: Wed, 28 Sep 2022 23:19:35 +0200 [thread overview]
Message-ID: <CAHYJk3TryFqPE9KDcY3GJBis-OULm6Xe0QDSa9OzDLzfb5ojMg@mail.gmail.com> (raw)
In-Reply-To: <5701a51d-76ff-240a-929c-054460841e80@gmx.com>
On 9/28/22, Eric Cook <llua@gmx.com> wrote:
> Hey all,
>
> bash 5.2[1] recently released and a change i found of interest is allowing
> $'' to be expanded
> within heredocs. $'' is currently the only expansion that uses the `$'
> operator that doesn't
> expand within heredocs(even $[] does); so i can see that edgecase being
> confusing in addition
> to the feature just being useful.
> cat <<eof
> hello$'\t'world
> eof
> ...
$'foo' is technically a form of quoting, not expansion, so it is
consistent the way it is now. Eg, there is no $ operator in play, the
$' together form an operator (if you want to call it that) which
begins this particular form of quotes.
% cat << EOF
"foo" 'foo' $'foo'
EOF
"foo" 'foo' $'foo'
--
Mikael Magnusson
next prev parent reply other threads:[~2022-09-28 21:24 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-28 20:30 Eric Cook
2022-09-28 21:19 ` Mikael Magnusson [this message]
2022-09-29 9:03 ` Jun T
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