Chinese XML Now!

• XML: the eXtensible Markup Language An Introduction

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• Retrospective on ERCS: Extended Reference Concrete Syntax

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• An Introduction to XML DTDs (PDF)

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• Using XSL as a Structure Validation Language
  also being published in July InterCHANGE magazine

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• Validate This! Content Models on Different Targets

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• Axis Models and Path Models : Extending DTDs with XPaths (Updated version of Validation on Different XPath Axes) Now implemented in The Schematron...see below!

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• XXX Notation Processors

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• XML Notation Schemas: a discussion proposal

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• Weak Validation

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• Richer Anonymous Content Types

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• How to Promote Organic Plurality on the WWW

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Apart from the first three articles, the above articles all explore various aspects of XML Schemas, in the context of the current W3C XML Schema draft document. They propose a new way to view document structures, and explore how this view allows different approaches to document validation.

Diagram: Family Tree of Schema Languages for Markup Languages

• Specification: Resource Description Framework

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• DTD: XML markup declarations

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• DTD: text/plain

• Specification: DDML

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• Omnimark scripts: xml2ddml.xom and xml2ddml2.xom

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• Examples: XBEL DTD, DDML DTD, (TEI) Lite and Loose DTD, and MathML

• The Schematron is a structural schema language for XML based on tree-patterns. A PDF discussion on the relation between tree-pattern schemas and grammar-based structural schemas is available at From Grammars to The Schematron

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• Exclusion Validator for XHTML

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• Francis Norton's Generating XSL Validators (not ASCC document)

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• See the articles for technical discussions

• Snapshot of an experimental general-purpose lexical analyser which can be configured for XML and a wide range of different syntaxes.

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• See the articles for technical discussions

• Specification: Document Object Model API

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• C header (not ASCC document)