RELAX NG: A Simpler Schema Language for XML

by Eric van der Vlist

Overview

As developers know, the beauty of XML is that it is extensible, even to the point that you can invent new elements and attributes as you write XML documents. Then, however, you need to define your changes so that applications will be able to make sense of them and this is where XML schema languages come into play. RELAX NG (pronounced relaxing), the Regular Language Description for XML Core—New Generation is quickly gaining momentum as an alternative to other schema languages. Designed to solve a variety of common problems raised in the creation and sharing of XML vocabularies, RELAX NG is less complex than The W3C's XML Schema Recommendation and much more powerful and flexible than DTDs. RELAX NG is a grammar-based schema language that's both easy to learn for schema creators and easy to implement for software developers In RELAX NG, developers are introduced to this unique language and will learn a no-nonsense method for creating XML schemas. This book offers a clear-cut explanation of RELAX NG that enables intermediate and advanced XML developers to focus on XML document structures and content rather than battle the intricacies of yet another convoluted standard. RELAX NG covers the following topics in depth:

• Introduction to RELAX NG
• Building RELAX NG schemas using XML syntax
• Building RELAX NG schemas using compact syntax, an alternative non-XML syntax
• Flattening schemas to limit depth and provide reusability
• Using external datatype libraries with RELAX NG
• W3C XML Schema regular expressions
• Writing extensible schemas
• Annotating schemas
• Generating schemas form different sources
• Determinism and datatype assignment

and much more. If you're looking for a schema language that's easy to use and won't leave you in a labyrinth of obscure limitations, RELAX NG is the language you should be using. And only O'Reilly's RELAX NG gives you the straightforward information and everything else you'll need to take advantage of this powerful and intelligible language.

Product Details

ISBN-13:	9780596004217
Publisher:	O'Reilly Media, Incorporated
Publication date:	12/28/2003
Series:	O'Reilly Series
Edition description:	First
Pages:	506
Product dimensions:	7.00(w) x 9.19(h) x 0.91(d)

About the Author

Eric van der Vlist is the resident expert on XML schema languages on XML.com. He is also a member of the ISO DSDL committee, where standardization work on RELAX NG and related specifications is in progress. Eric is also the author of O'Reilly's XML Schema.

Table of Contents

• Foreword by James Clark
• Foreword by Murata Makoto
• Preface
• Tutorial
  • Chapter 1: What RELAX NG Offers
  • Chapter 2: Simple Foundations Are Beautiful
  • Chapter 3: First Schema
  • Chapter 4: Introducing the Compact Syntax
  • Chapter 5: Flattening the First Schema
  • Chapter 6: More Complex Patterns
  • Chapter 7: Constraining Text Values
  • Chapter 8: Datatype Libraries
  • Chapter 9: Using Regular Expressions to Specify Simple Datatypes
  • Chapter 10: Creating Building Blocks
  • Chapter 11: Namespaces
  • Chapter 12: Writing Extensible Schemas
  • Chapter 13: Annotating Schemas
  • Chapter 14: Generating RELAX NG Schemas
  • Chapter 15: Simplification and Restrictions
  • Chapter 16: Determinism and Datatype Assignment
• Reference
  • Chapter 17: Element Reference
  • Chapter 18: Compact Syntax Reference
  • Chapter 19: Datatype Reference
• Appendixes
  • DSDL
  • The GNU Free Documentation License
• Glossary
• Colophon