Re: Ambiguities from Special-Case Productions

Ivan Boldyrev <boldyrev@cgitftp.uiggm.nsc.ru>
17 Sep 2005 13:54:08 -0400

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Related articles
Ambiguities from Special-Case Productions drikosv@otenet.gr (Evangelos Drikos) (2005-09-14)
Re: Ambiguities from Special-Case Productions cleos@nb.sympatico-dot-ca.remove (Cleo Saulnier) (2005-09-15)
Re: Ambiguities from Special-Case Productions boldyrev@cgitftp.uiggm.nsc.ru (Ivan Boldyrev) (2005-09-17)
Re: Ambiguities from Special-Case Productions DrDiettrich@compuserve.de (Hans-Peter Diettrich) (2005-09-17)
Re: Ambiguities from Special-Case Productions drikosv@otenet.gr (Evangelos Drikos) (2005-09-22)
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From: Ivan Boldyrev <boldyrev@cgitftp.uiggm.nsc.ru>
Newsgroups: comp.compilers
Date: 17 Sep 2005 13:54:08 -0400
Organization: this field is intentionally left blank
References: 05-09-049
Keywords: parse
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On 9233 day of my life Evangelos Drikos wrote:
> Any references of how such ambiguities are handled in a GLR or is it a
> simple & usual case for such a parser?


GLR is like LR parser that doesn't signal na error when ambiguity is
found, but explores all alternatives.


Naive GLR parser will return all possible interpretations; more
sophisticated one might ignore some alternatives if progammer provide
some hints.


Some LR parser (yacc and GNU Bison, for example) also can resolve
ambiguities when programmers tells how to do it.


--
Ivan Boldyrev


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