Eric van der Vlist

RELAX NG (eBook, PDF)

• Format: PDF

Produktbeschreibung

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 NGBuilding RELAX NG schemas using XML syntaxBuilding RELAX NG schemas using compact syntax, an alternative non-XML syntaxFlattening schemas to limit depth and provide reusabilityUsing external datatype libraries with RELAX NGW3C XML Schema regular expressionsWriting extensible schemasAnnotating schemasGenerating schemas form different sourcesDeterminism and datatype assignmentand 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.

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Produktdetails

• Verlag: O'Reilly Media
• Seitenzahl: 508
• Erscheinungstermin: 15. Dezember 2003
• Englisch
• ISBN-13: 9781449315955
• Artikelnr.: 40535344

Autorenporträt

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.

Inhaltsangabe

Foreword by James Clark
Foreword by Murata Makoto
Preface
Who Should Read This Book?
Who Shouldn't Read This Book?
Organization of This Book
Conventions Used in This Book
Comments and Questions
Powered by WikiML
Acknowledgments
Tutorial
Chapter 1: What RELAX NG Offers
1.1 Diversity
1.2 Keeping Documents Independent of Applications
1.3 Validation Has Many Aspects
1.4 The Best Way to Validate XML Document Structures
1.5 RELAX NG's Diverse Applications
1.6 RELAX NG as a Pivot Format
1.7 Why Use Other Schema Languages?
Chapter 2: Simple Foundations Are Beautiful
2.1 Documents and Infosets
2.2 Different Types of Schema Languages
2.3 A Simple Example
2.4 A Strong Mathematical Background
2.5 Patterns, and Only Patterns
Chapter 3: First Schema
3.1 Getting Started
3.2 First Patterns
3.3 Complete Schema
Chapter 4: Introducing the Compact Syntax
4.1 First Compact Patterns
4.2 Full Schema
4.3 XML or Compact?
Chapter 5: Flattening the First Schema
5.1 Defining Named Patterns
5.2 Referencing Named Patterns
5.3 The grammar and start Elements
5.4 Assembling the Parts
5.5 Problems That Never Arise
5.6 Recursive Models
5.7 Escaping Named Pattern Identifiers in the Compact Syntax
Chapter 6: More Complex Patterns
6.1 The group Pattern
6.2 The interleave Pattern
6.3 The choice Pattern
6.4 Pattern Compositions
6.5 Order Variation as a Source of Information
6.6 Text and Empty Patterns, Whitespace, and Mixed Content
6.7 Why Is It Called interleave?
6.8 Mixed Content Models with Order
6.9 A Restriction Related to interleave
6.10 A Missing Pattern: Unordered Group
Chapter 7: Constraining Text Values
7.1 Fixed Values
7.2 Co-Occurrence Constraints
7.3 Enumerations
7.4 Whitespace and RELAX NG Native Datatypes
7.5 Using String Datatypes in Attribute Values
7.6 When to Use String Datatypes
7.7 Using Different Types in Each Value
7.8 Exclusions
7.9 Lists
7.10 Data Versus Text
Chapter 8: Datatype Libraries
8.1 W3C XML Schema Type Library
8.2 DTD Compatibility Datatypes
8.3 Which Library Should Be Used?
Chapter 9: Using Regular Expressions to Specify Simple Datatypes
9.1 A Swiss Army Knife
9.2 The Simplest Possible Pattern Facets
9.3 Quantifying
9.4 More Atoms
9.5 Common Patterns
Chapter 10: Creating Building Blocks
10.1 Using External References
10.2 Merging Grammars
10.3 A Real-World Example: XHTML 2.0
10.4 Other Options
Chapter 11: Namespaces
11.1 A Ten-Minute Guide to XML Namespaces
11.2 The Two Challenges of Namespaces
11.3 Declaring Namespaces in Schemas
11.4 Accepting Foreign Namespaces
11.5 Namespaces, Building Blocks, and Chameleon Design
Chapter 12: Writing Extensible Schemas
12.1 Extensible Schemas
12.2 The Case for Open Schemas
12.3 Extensible and Open?
Chapter 13: Annotating Schemas
13.1 Common Principles for Annotating RELAX NG Schemas
13.2 Documentation
13.3 Annotation for Applications
Chapter 14: Generating RELAX NG Schemas
14.1 Examplotron: Instance Documents as Schemas
14.2 Literate Programming
14.3 UML
14.4 Spreadsheets
Chapter 15: Simplification and Restrictions
15.1 Simplification
15.2 Restrictions
Chapter 16: Determinism and Datatype Assignment
16.1 What Is Ambiguity?
16.2 The Downsides of Ambiguous and Nondeterministic Content Models
16.3 Some Ideas to Make Disambiguation Easier
Reference
Chapter 17: Element Reference
17.1 Elements
Chapter 18: Compact Syntax Reference
18.1 EBNF Production Reference
Chapter 19: Datatype Reference
Appendixes
DSDL
A Multipart Standard
What DSDL Should Bring You
The GNU Free Documentation License
GNU Free Documentation License
0. Preamble
1. APPLICABILITY AND DEFINITIONS
2. VERBATIM COPYING
3. COPYING IN QUANTITY
4. MODIFICATIONS
5. COMBINING DOCUMENTS
6. COLLECTIONS OF DOCUMENTS
7. AGGREGATION WITH INDEPENDENT WORKS
8. TRANSLATION
9. TERMINATION
10. FUTURE REVISIONS OF THIS LICENSE
Addendum: How to use this License for your documents
Glossary
Colophon