SAXONICA

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
| Introduction
| EXSLT Extensions
» | Extension attributes (XSLT only)
| Additional serialization parameters
| Extension functions
| Extension instructions
Sample Saxon Applications
The Saxon SQL Extension
XSLT Elements
XPath 2.0 Expression Syntax
Function Library
Standards Conformance

# saxon:assignable

This attribute may be set on a global `xsl:variable` element. The permitted values are "yes" and "no". If the variable is the subject of a saxon:assign instruction, it must be set to the value "yes". Setting this value to "yes" also ensures that the variable is actually evaluated, which is useful if the `select` expression calls extension functions with side-effects; without this, a variable that is never referenced may never be evaluated.

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