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Predictive parser combinators need four values to report errors

Part of: JFP Research Articles

Published online by Cambridge University Press:  07 November 2008

Andrew Partridge  and
David Wright
Andrew Partridge
Affiliation:
Department of Computer Science, University of TasmaniaGPO Box 252C, Hobart, Tasmania 7001, Australia (e-mail: {A.S.Partridge, D.A.Wright}@cs.utas.edu.au)
David Wright
Affiliation:
Department of Computer Science, University of TasmaniaGPO Box 252C, Hobart, Tasmania 7001, Australia (e-mail: {A.S.Partridge, D.A.Wright}@cs.utas.edu.au)
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Abstract

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A combinator-based parser is a parser constructed directly from a BNF grammar, using higher-order functions (combinators) to model the alternative and sequencing operations of BNF. This paper describes a method for constructing parser combinators that can be used to build efficient predictive parsers which accurately report the cause of parsing errors. The method uses parsers that return values (parse trees or error indications) decorated with one of four tags.

Type
Articles
Information
Journal of Functional Programming , Volume 6 , Issue 2 , March 1996 , pp. 355 - 364
Copyright
Copyright © Cambridge University Press 1996

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