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From: Bart Schaefer <schaefer@brasslantern.com>
Message-Id: <151115144805.ZM20614@torch.brasslantern.com>
Date: Sun, 15 Nov 2015 14:48:05 -0800
In-Reply-To: <20151115200356.0f3a80a2@ntlworld.com>
Comments: In reply to Peter Stephenson <p.w.stephenson@ntlworld.com>
        "Re: Bug in alias expansion" (Nov 15,  8:03pm)
References: <CAFvQaj4AKN36Ntdxt0rNCqPxWFHtjLMt3zPK65y2Xf9G5iUfWA@mail.gmail.com> 
	<20151115200356.0f3a80a2@ntlworld.com>
X-Mailer: OpenZMail Classic (0.9.2 24April2005)
To: zsh-workers@zsh.org
Subject: Re: Bug in alias expansion
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On Nov 15,  8:03pm, Peter Stephenson wrote:
}
} I don't know why this works in other contexts.

Addendum:  To some extent it does not.

torch% alias foo='echo x)$(:'
torch% print $(foo)             
zsh: command not found: fooecho

This should of course expand to

    print $( echo x)$(: )

which is perfectly valid and definitely should not produce "fooecho",
so the backtracking is still messed up somewhere and parse_subscript()
is potentially a red herring.

In older versions of zsh it gagged in a different way:

% alias -g foo='echo x)$(:' 
% print $(foo)
zsh: parse error near `)'
zsh: parse error in command substitution