Generalized left-corner parsing

  • Authors:
  • Mark-Jan Nederhof

  • Affiliations:
  • University of Nijmegen, Toernooiveld, Nijmegen, The Netherlands

  • Venue:
  • EACL '93 Proceedings of the sixth conference on European chapter of the Association for Computational Linguistics
  • Year:
  • 1993

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Abstract

We show how techniques known from generalized LR parsing can be applied to left-corner parsing. The resulting parsing algorithm for context-free grammars has some advantages over generalized LR parsing: the sizes and generation times of the parsers are smaller, the produced output is more compact, and the basic parsing technique can more easily be adapted to arbitary context-free grammars.The algorithm can be seen as an optimization of algorithms known from existing literature. A strong advantage of our presentation is that it makes explicit the role of left-corner parsing in these algorithms.