From LL-regular to LL(1) grammars: Transformations, covers and parsing

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Nijholt, Anton (1982) From LL-regular to LL(1) grammars: Transformations, covers and parsing. RAIRO Informatique Théorique, 16 . pp. 387-406. ISSN 0399-0540

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Abstract:In this paper it is shown that it is possible to transform any LL-regular grammar G into an LL(1) grammar G' in such a way that parsing G' is as good as parsing G. That is, a parse of a sentence of grammar G can be obtained with a simple string homomorphism from the parse of a corresponding sentence of G'. Since any LL(k) grammar is an LL-regular grammar the results that are obtained are valid for LL(k) grammars as well. The relation between LL-regular grammars is expressed by means of a generalized version of the well-known cover relation between two grammars.
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Electrical Engineering, Mathematics and Computer Science (EEMCS)
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Link to this item:http://purl.utwente.nl/publications/66955
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