Lazy Lexing is Fast

Manuel M. T. Chakravarty

In A. Middeldorp and T. Sato, editors, Fourth Fuji International Symposium on Functional and Logic Programming, Springer-Verlag, LNCS 1722, pages 68-84, 1999.

Abstract
This paper introduces a set of combinators for building lexical analysers in a lazy functional language. During lexical analysis, the combinators generate a deterministic, table-driven analyser on the fly. Consequently, the presented method combines the efficiency of off-line scanner generators with the flexibility of the combinator approach. The method makes essential use of the lazy semantics of the implementation language Haskell. Finally, the paper discusses benchmarks of a scanner for the programming language C.

PostScript version (15 pages).

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