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From: Bart Schaefer <schaefer@brasslantern.com>
Message-Id: <160114190532.ZM18340@torch.brasslantern.com>
Date: Thu, 14 Jan 2016 19:05:32 -0800
In-Reply-To: <CAKc7PVD-0onr3=OXb7CmTFfob4UsSmWvSG_tppevnr1dtuicZw@mail.gmail.com>
Comments: In reply to Sebastian Gniazdowski <sgniazdowski@gmail.com>
        "Re: _history-complete-older problems with $(" (Jan 14, 11:55am)
References: <CAKc7PVCnEX1rEhNqhtx7spyUVKCWukz4Tzkqr27-OV9+4hVciQ@mail.gmail.com> 
	<CAKc7PVDVR=B8SWX+gSiNvtODWZ-25LtDz7jXVDH8BtrcxMnjXQ@mail.gmail.com> 
	<160111161501.ZM5305@torch.brasslantern.com> 
	<CAKc7PVBCEM=46YmgmhPR==Rq+pSfY+hgr8bcOMLV=zLFm6THBg@mail.gmail.com> 
	<160112113928.ZM9065@torch.brasslantern.com> 
	<20160113010147.GA4699@tarsus.local2> 
	<160112180141.ZM9984@torch.brasslantern.com> 
	<CAKc7PVBz1nNueRmEfyz3157kvJjEgHW3wmSXraKM+-9P-i5Atw@mail.gmail.com> 
	<CAKc7PVAdLiKGvay412eLo=0jCpRB9PktAkAVj08sE=gjZ=4nQw@mail.gmail.com> 
	<CAKc7PVB07x5iLj0GrrzvLpc6nm7vpy1_Q66W74KWAm_OdMoKzA@mail.gmail.com> 
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To: Zsh hackers list <zsh-workers@zsh.org>
Subject: Re: _history-complete-older problems with $(
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On Jan 14, 11:55am, Sebastian Gniazdowski wrote:
} Subject: Re: _history-complete-older problems with $(
}
} I have one idea. It's generally about detecting a syntax error that
} makes shell word unbound. By appending " x" to shell word and running
} (Z+n+) one can obtain either 1 or 2 elements and first signals a
} syntax error. For such case, SUFFIX would consist only from a space
} delimited part of the regular right part.

That should work, and in fact the completion internals do something
quite similar.