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Re: $<out of range>

From: Akim Demaille
Subject: Re: $<out of range>
Date: 25 Apr 2002 22:36:02 +0200
User-agent: Gnus/5.0808 (Gnus v5.8.8) XEmacs/21.4 (Common Lisp)

Paul> No, it's allowed.  POSIX says of `$number':

Paul>   If number refers to an element past the current point in the
Paul> rule, or beyond the bottom of the stack, the result is
Paul> undefined.

Paul> Here the "current point in the rule" is 3, so $3 is allowed.

Are you sure the current point is not 2?  I fail to see any technical
soundness in the consequences of the interpretation of `current point'
you propose.

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