Chapter 2. Background

This chapter discusses some background information that is crucial to understanding the rest of the book. This material is not intended to be a thorough introduction but rather a quick refresher. If you are already familiar with these topics, feel free to move on to the next chapter. The topics reviewed in this chapter are XML concepts (including basics, schemas, Infoset and XPath) and Web concepts (URIs, HTTP and MIME).

XML

This section briefly reviews the core concepts of XML. Basic reviews of eXtensible Markup Language (XML), Document Type Definitions (DTDs), XML Schema, RelaxNG (pronounced relaxing), XML Namespaces, XML Infoset, and XPath are provided to ensure that you are familiar with these technologies.

XML Basics

The ...

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