Publication Details

On Elimination of Erasing Rules from E0S Grammars

HAVEL, M.; MEDUNA, A. On Elimination of Erasing Rules from E0S Grammars. Computer Science Journal of Moldova, 2022, vol. 30, no. 2, p. 135-147. ISSN: 1561-4042.

Czech title

O odstranění vymazávacích pravidel z E0S gramatik

Type

journal article

Language

English

Authors

Havel Martin, Ing. (DIFS)
Meduna Alexandr, prof. RNDr., CSc. (DIFS)

URL

http://www.math.md/publications/csjm/issues/v30-n2/

Keywords

formal languages, E0S grammars, elimination of erasing rules

Abstract

The present paper describes an alternative algorithm for the removal of erasing rules from E0S grammars. As opposed to the standard way of eliminating erasing rules in most E0S-like grammars, such as context-free grammars, this method requires no predetermination of symbols that derive the empty string. The proposed algorithm is formally verified. In the conclusion of the paper, the applicability of the algorithm to E0S grammars that work in a semi-parallel way is demonstrated. Furthermore, two open problems are formulated.

Published

2022

Pages

135–147

Journal

Computer Science Journal of Moldova, vol. 30, no. 2, ISSN 1561-4042

DOI

10.56415/csjm.v30.08

UT WoS

000825309600001

EID Scopus

2-s2.0-85134572166

BibTeX

@article{BUT179363,
  author="Martin {Havel} and Alexandr {Meduna}",
  title="On Elimination of Erasing Rules from E0S Grammars",
  journal="Computer Science Journal of Moldova",
  year="2022",
  volume="30",
  number="2",
  pages="135--147",
  doi="10.56415/csjm.v30.08",
  issn="1561-4042",
  url="http://www.math.md/publications/csjm/issues/v30-n2/"
}