### Abstract

Language | Undefined |
---|---|

Pages | 387-406 |

Number of pages | 20 |

Journal | RAIRO Informatique Théorique |

Volume | 16 |

State | Published - 1982 |

### Keywords

- IR-66955
- EWI-9293

### Cite this

}

*RAIRO Informatique Théorique*, vol 16, pp. 387-406.

**From LL-regular to LL(1) grammars: Transformations, covers and parsing.** / Nijholt, Antinus.

Research output: Contribution to journal › Article

TY - JOUR

T1 - From LL-regular to LL(1) grammars: Transformations, covers and parsing

AU - Nijholt,Antinus

PY - 1982

Y1 - 1982

N2 - In this paper it is shown that it is possible to transform any LL-regular grammar G into an LL(1) grammar G' in such a way that parsing G' is as good as parsing G. That is, a parse of a sentence of grammar G can be obtained with a simple string homomorphism from the parse of a corresponding sentence of G'. Since any LL(k) grammar is an LL-regular grammar the results that are obtained are valid for LL(k) grammars as well. The relation between LL-regular grammars is expressed by means of a generalized version of the well-known cover relation between two grammars.

AB - In this paper it is shown that it is possible to transform any LL-regular grammar G into an LL(1) grammar G' in such a way that parsing G' is as good as parsing G. That is, a parse of a sentence of grammar G can be obtained with a simple string homomorphism from the parse of a corresponding sentence of G'. Since any LL(k) grammar is an LL-regular grammar the results that are obtained are valid for LL(k) grammars as well. The relation between LL-regular grammars is expressed by means of a generalized version of the well-known cover relation between two grammars.

KW - IR-66955

KW - EWI-9293

M3 - Article

VL - 16

SP - 387

EP - 406

JO - RAIRO Informatique théorique et applications

T2 - RAIRO Informatique théorique et applications

JF - RAIRO Informatique théorique et applications

SN - 0988-3754

ER -