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A practical general method for constructing LR(k) parsers

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Summary

The paper presents in detail the case for k=1 of a practical general method for constructing LR(k) parsers. For k=1 this method is of rival efficiency to the previous general algorithm described by the author in [21]. The method involves combining the states of an LR(k) parser as they are generated, reducing to a fraction, in the process, the number of configurations that need actually be evaluated, or for which space must be assigned — compared to such general methods as those of [1, 11, 12, 17]. The criteria of compatibility introduced for this purpose are such that the parser obtained is in practice identical in size to, or negligibly larger than, that obtained by resolving the inadequacies of an LR(o) parser (as is done for various subsets of the LR(k) grammars in [5, 8, 14, 20]).

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References

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Authors and Affiliations

  1. Dept. of Information and Computer Sciences, University of Hawaii, 2565 The Mall, 96822, Honolulu, Hawaii, USA

    David Pager

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  1. David Pager
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Additional information

This paper is a development of one of the ideas proposed in Pager [16]. The work was supported by the National Science Foundation under Grant GJ-43362.

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Pager, D. A practical general method for constructing LR(k) parsers. Acta Informatica 7, 249–268 (1977). https://doi.org/10.1007/BF00290336

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