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From: Bart Schaefer <schaefer@brasslantern.com>
To: zsh-workers@zsh.org
Subject: Empty sublist in "if"
Date: Sun, 12 Feb 2017 10:30:09 -0800	[thread overview]
Message-ID: <170212103009.ZM1505@torch.brasslantern.com> (raw)
In-Reply-To: <20170212061455.GA4267@fujitsu.shahaf.local2>

On Feb 12,  6:14am, Daniel Shahaf wrote:
}
} % if false; then if true; fi 
} % setopt noshortloops 
} % if false; then if true; fi 
} zsh: parse error near `fi'
} 
} I'm guessing the second 'if' is parsed using the SHORT_LOOPS syntax,
} with an empty sublist.  I'm not sure whether that's a bug: is the
} sublist in the SHORT_LOOPS syntax allowed to be null?

Hrm.

    if true; then fi

works, so yes, the sublist is allowed to be empty.  Still, the original
example seems a pretty questionable special case, and e.g. bash does
not allow an empty sublist there.

Of course zsh also allows empty braces and empty subshell parens, so ...


           reply	other threads:[~2017-02-12 18:29 UTC|newest]

Thread overview: expand[flat|nested]  mbox.gz  Atom feed
 [parent not found: <20170212061455.GA4267@fujitsu.shahaf.local2>]

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