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From: Bart Schaefer <schaefer@brasslantern.com>
Message-Id: <160227212739.ZM4415@torch.brasslantern.com>
Date: Sat, 27 Feb 2016 21:27:39 -0800
In-Reply-To: <56D113E0.4090609@inlv.org>
Comments: In reply to Martijn Dekker <martijn@inlv.org>
        "[PATCH] make 'set +o' useful and POSIX compatible" (Feb 27,  4:11am)
References: <56D113E0.4090609@inlv.org>
To: Zsh hackers list <zsh-workers@zsh.org>
Subject: Re: [PATCH] make 'set +o' useful and POSIX compatible
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On Feb 27,  4:11am, Martijn Dekker wrote:
}
} On zsh (as well as all pdksh variants), 'set +o' is currently inadequate
} for that purpose because it only outputs the currently active shell
} options, and not the inactive ones.

This is almost certainly not coincidental.  In the early years of zsh
development, ksh was only available on closed-source UNIX platforms,
so any ksh-isms that were incorporated were either derived from reading
man pages (which led by misunderstanding to the "coproc" command and
an unusual syntax for writing base-N values in arithmetic context) or
borrowed from pdksh.

I don't see any reason not to accept this patch.