From: Bart Schaefer <schaefer@brasslantern.com>
To: zsh-workers@zsh.org
Subject: Re: Arith expansion accepts extra closing parenthesis
Date: Tue, 2 Jun 2015 10:58:22 -0700 [thread overview]
Message-ID: <150602105822.ZM4076@torch.brasslantern.com> (raw)
In-Reply-To: <556C890E.80506@inlv.org>
On Jun 1, 6:32pm, Martijn Dekker wrote:
} Subject: Arith expansion accepts extra closing parenthesis
}
} I just found some more arithmetic parsing strangeness. zsh 5.0.8 and
} 4.3.11 both happily accept and ignore one (1) extra closing parenthesis
}
} % X='1)'
} % echo $((X))
} 1
Easier way to see this:
% let "1)"
%
It appears mathparse() around lines 1566-1568 of math.c consumes one
token of lookahead with zzlex() and inadvertently discards it when it
turns out to be a close-paren. This is partly because of the pseuedo-
precedence assigned to M_OUTPAR "for convenience".
I'm not sure what the correct fix is; maybe checkunary() should throw
an error on M_OUTPAR?
next prev parent reply other threads:[~2015-06-02 17:58 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-01 16:32 Martijn Dekker
2015-06-02 8:56 ` Peter Stephenson
2015-06-02 9:14 ` Peter Stephenson
2015-06-02 17:58 ` Bart Schaefer [this message]
2015-06-02 18:10 ` Bart Schaefer
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