The METAFRONT System: Extensible Parsing and Transformation

Autor: Michael I. Schwartzbach, Claus Brabrand, Mads Vanggaard
Rok vydání: 2003
Předmět:
Zdroj: BRICS Report Series; No 7 (2003): RS-7 The METAFRONT System: Extensible Parsing and Transformation
BRICS Report Series; Nr. 7 (2003): RS-7 The METAFRONT System: Extensible Parsing and Transformation
ISSN: 1601-5355
0909-0878
DOI: 10.7146/brics.v10i7.21778
Popis: We present the metafront tool for specifying flexible, safe, and efficient syntactic transformations between languages defined by context-free grammars. The transformations are guaranteed to terminate and to map grammatically legal input to grammatically legal output. We rely on a novel parser algorithm that is designed to support gradual extensions of a grammar by allowing productions to remain in a natural style and by statically reporting ambiguities and errors in terms of individual productions as they are being added. Our tool may be used as a parser generator in which the resulting parser automatically supports a flexible, safe, and efficient macro processor, or as an extensible lightweight compiler generator for domain-specific languages. We show substantial examples of both kinds.
Databáze: OpenAIRE