PDAs and regular expressions

"pseale" <pseale@ix.netcom.com>
22 Oct 1998 02:00:25 -0400

          From comp.compilers

Related articles
PDAs and regular expressions pseale@ix.netcom.com (pseale) (1998-10-22)
Re: PDAs and regular expressions glenn.langemeier@gmx.net (1998-10-24)
Re: PDAs and regular expressions bromage@cs.mu.OZ.AU (1998-10-24)
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From: "pseale" <pseale@ix.netcom.com>
Newsgroups: comp.compilers
Date: 22 Oct 1998 02:00:25 -0400
Organization: ICGNetcom
Keywords: parse, theory

Hi all,

        Wasn't sure where to direct this question, I thought this group might
have some answers.
        Given a pushdown automaton, I wonder:
        - what the weakest grammatical model is that can describe the possible
contents of the pushdown tape in any given state (for instance, a regular
expression) and
        - if so, has anyone developed an algorithm to compute this.
        Any references would be appreciated.


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