Saxon Documentation

Full Contents

About Saxon

Changes in this Release

Notices

Using XSLT 2.0

Using XQuery

Handling Source Documents

XML Schema Processing

XPath API for Java

Saxon on .NET

Extensibility

Saxon Extensions

Sample Saxon Applications

The Saxon SQL Extension

XSLT Elements

XPath 2.0 Expression Syntax
	Introduction
	Constants
	Variable References
	Function Calls
	Axis steps
	Parentheses and operator precedence
	Filter expressions
	Path expressions
	Cast as, Treat as
	Set difference and intersection
	Union
	Arithmetic expressions
	Range expressions
	Comparisons
	Instance of and Castable as
»	Conditional Expressions
	Quantified Expressions
	For Expressions
	Boolean expressions: AND and OR
	Sequence expressions

Function Library

Standards Conformance

Conditional Expressions

XPath 2.0 allows a conditional expression of the form if ( E1 ) then E2 else E3. For example, if (@discount) then @discount else 0 returns the value of the discount attribute if it is present, or zero otherwise.