SAXONICA

Saxon Documentation
Full Contents
About Saxon
Changes in this Release
Conditions of Use
Using XSLT 2.0
Using XQuery
Handling Source Documents
XML Schema Processing
The XPath API
Standards Conformance
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
XSLT Patterns

# The saxon:require-well-formed attribute

The attribute `saxon:require-well-formed` is available, with values "yes" or "no". The default is "no". If the value is set to "yes", and a user-written `ContentHandler` is supplied to receive the results of the transformation, then Saxon will report an error rather than sending a non-well-formed stream of SAX events to the `ContentHandler`. This attribute is useful when the output of the stylesheet is sent to a component (for example an XSL-FO rendering engine) that is not designed to accept non-well-formed XML result trees.

Note also that namespace undeclarations of the form `xmlns:p=""` (as permitted by XML Namespaces 1.1) are passed to the `startPrefixMapping()` method of a user-defined `ContentHandler` only if `undeclare-namespaces="yes"` is specified on `xsl:output`.

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