Block-Deterministic Regular Languages

  • Authors:
  • Dora Giammarresi;Rosa Montalbano;Derick Wood

  • Affiliations:
  • -;-;-

  • Venue:
  • ICTCS '01 Proceedings of the 7th Italian Conference on Theoretical Computer Science
  • Year:
  • 2001

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Abstract

We introduce the notions of blocked, block-marked and blockdeterministic regular expressions. We characterize block-deterministic regular expressions with deterministic Glushkov block automata. The results can be viewed as a generalization of the characterization of one-unambiguous regular expressions with deterministic Glushkov automata. In addition, when a language L has a block-deterministic expression E, we can construct a deterministic finite-state automaton for L that has size linear in the size of E.