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Date: Mon, 07 Aug 2017 15:26:49 +0100
From: Peter Stephenson <p.stephenson@samsung.com>
To: Daniel Shahaf <d.s@daniel.shahaf.name>
Cc: zsh-workers@zsh.org
Subject: Re: parsing empty alternatives: case foo|) :;;
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	<20170807135559.odtceysgqn5qeqql@tarpaulin.shahaf.local2>

On Mon, 7 Aug 2017 13:55:59 +0000
Daniel Shahaf <d.s@daniel.shahaf.name> wrote:
> % case '' in (foo|) echo yes;; esac
> yes
> % case '' in foo|) echo yes;; esac
> zsh: parse error near `)'
> 
> Why does the second case fail to parse?  We (IRC) don't see any ambiguity
> in it.

I haven't checked, but I think it looks like a pipe --- at that point we
haven't gone further down the case-specific code so that it parses the
line specially.

pws