Formal Properties of XML Grammars and Languages
Discrete Mathematics
2007-05-23 v1 Computation and Language
Abstract
XML documents are described by a document type definition (DTD). An XML-grammar is a formal grammar that captures the syntactic features of a DTD. We investigate properties of this family of grammars. We show that every XML-language basically has a unique XML-grammar. We give two characterizations of languages generated by XML-grammars, one is set-theoretic, the other is by a kind of saturation property. We investigate decidability problems and prove that some properties that are undecidable for general context-free languages become decidable for XML-languages. We also characterize those XML-grammars that generate regular XML-languages.
Keywords
Cite
@article{arxiv.cs/0011011,
title = {Formal Properties of XML Grammars and Languages},
author = {Jean Berstel and Luc Boasson},
journal= {arXiv preprint arXiv:cs/0011011},
year = {2007}
}
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24 pages