Chapter 9 Writing XPath Expressions

The XML Path Language (XPath) allows you to query an XML document using XPath expressions. An XPath expressions returns a well-formed XML node-list or an XPath value object. Stylus Studio supports the November 2005 W3C XPath 2.0 Candidate Recommendation. XPath 2.0 is a superset of XPath 1.0.

This section discusses the following topics:

About the XPath Processor

Using the XPath Query Editor

Sample Data for Examples and Practice

Getting Started with Queries

Specifying the Nodes to Evaluate

Handling Strings and Text

Specifying Boolean Expressions and Functions

Specifying Number Operations and Functions

Comparing Values

Finding a Particular Node

Obtaining a Union

Obtaining Information About a Node or a Node Set

Using XPath Expressions in Stylesheets

Accessing Other Documents During Query Execution

XPath Quick Reference

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