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From: Bart Schaefer <schaefer@brasslantern.com>
Message-Id: <160909180250.ZM19582@torch.brasslantern.com>
Date: Fri, 9 Sep 2016 18:02:50 -0700
In-Reply-To: <20160909173515.4cb8392e@pwslap01u.europe.root.pri>
Comments: In reply to Peter Stephenson <p.stephenson@samsung.com>
        "Re: zsh heredoc crash" (Sep  9,  5:35pm)
References: <CAHAq8pEm1FHNvoUJUq2t86P-QKtMdT3uScDUGn-dCscJUGvWew@mail.gmail.com> 
	<25855010.qczLe9GZ8n@kdudka-nb> 
	<20160909173515.4cb8392e@pwslap01u.europe.root.pri>
X-Mailer: OpenZMail Classic (0.9.2 24April2005)
To: zsh-workers@zsh.org
Subject: Re: zsh heredoc crash
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[>workers]

On Sep 9,  5:35pm, Peter Stephenson wrote:
} Subject: Re: zsh heredoc crash
}
} On Fri, 9 Sep 2016 16:33:19 +0200
} Kamil Dudka <kdudka@redhat.com> wrote:
} > On Friday, September 09, 2016 10:00:54 Paulo Cesar Pereira de Andrade wrote:
} > > ---8<---
} > > #!/usr/bin/zsh
} > > 
} > > cat >> /tm/ptry <<EOF
} > > export A="$(tr '\n' ' ' <<BLDARC
} > > content
} > > BLDARC)"
} > > EOF
} > > ---8<---
} > 
} > I was not able to make upstream zsh 5.0.2 crash with the above reproducer.
} 
} That's the underlying bug Paulo is talking about, yes
} (zsh-workers/34322).

I get:

torch% cat >> /tmp/try <<EOF
heredoc> export A="$(tr '\n' ' ' <<BLDARC
heredoc> content
heredoc> BLDARC)"
heredoc> EOF
zsh: parse error

However, if I add another line break, it works:

torch% cat >> /tmp/try <<EOF
export A="$(tr '\n' ' ' <<BLDARC
content
BLDARC  
)" 
EOF
torch% cat /tmp/try
export A="content "
torch% 

This is because gethere() is looking for a *line* containing only the end
token, even though the top of the call chain is parse_event(OUTPAR).  The
desired end token is not passed down through par_sublist().