Conformance statements
The processor is an implementation of the XSL Transformations (XSLT) Version 2.0 and the XQuery 1.0 W3C recommendations.
See section 21 of the XSLT 2.0 recommendation and section 5 of the XQuery 1.0 recommendation for more information about conformance criteria for processors.
XSLT 2.0 conformance
XQuery 1.0 conformance
- The processor supports normative construction of an instance of
the XQuery/XPath Data Model from an Infoset or from a PSVI. By default,
construction of the instance of the Data Model will be from an Infoset.
If the setValidating method of an XFactory instance is called with
a value of true, any instance of the Data Model that the processor
creates will be constructed from PSVI.
For more information, Performing basic XQuery operations.
The processor supports both XML 1.0 and XML 1.1.
Extension support
- If the value of the indent serialization parameter is yes for
an explicit or an implicit xsl:result-document instruction in an XSLT
stylesheet, the processor will use the value of any indent-amount
extension attribute on the associated xsl:output declaration to determine
the amount by which indentation should be increased for every level
of element nesting in the serialized result.
The indent-amount extension attribute is in the http://xml.apache.org/xalan namespace.
- In order to facilitate migration of XSLT 1.0 stylesheets, the
processor supports many extension functions defined by the EXSLT community
initiative. In many cases, these functions duplicate functions that
have been included in XSLT 2.0, XPath 2.0 and XQuery 1.0.
For more information about EXSLT, see the EXSLT website.
- The processor supports only the node-set common extension function.
This function is made redundant by the fact that XSLT 2.0 does not
restrict the operations that can be performed on temporary trees.
The EXSLT common functions are in the namespace http://exslt.org/common.
- The EXSLT dates-and-times functions provide facilities for manipulating
date and time values. Most of these functions are redundant with the
inclusion of the new date and time data types from XML Schema in XSLT
2.0, XQuery 1.0, and XPath 2.0.
The EXSLT dates-and-times functions are in the namespace http://exslt.org/dates-and-times.
- The processor supports only the evaluate dynamic extension function.
The EXSLT dynamic functions are in the namespace http://exslt.org/dynamic.
- The EXSLT math functions provide facilities for several commonly
used mathematical operations. Only the math:abs, math:max, math:min,
and math:highest functions have been made redundant in XSLT 2.0, XQuery
1.0, and XPath 2.0.
The EXSLT math functions are in the namespace http://exslt.org/math.
- The EXSLT set functions define facilities for performing set operations
on sequences of nodes. These have been made redundant by the new intersect
and except set operations and the << and >> node comparison
operations introduced in XSLT 2.0, XQuery 1.0, and XPath 2.0.
The EXSLT set functions are in the namespace http://exslt.org/sets.
- The EXSLT string functions provide facilities for string manipulation.
The tokenize and split functions have been made redundant by the new
operations for string manipulation in XSLT 2.0, XQuery 1.0, and XPath
2.0, including the fn:tokenize function and the xsl:analyze-string
instruction.
The EXSLT string functions are in the namespace http://exslt.org/strings.
- The processor supports only the node-set common extension function.
This function is made redundant by the fact that XSLT 2.0 does not
restrict the operations that can be performed on temporary trees.
- The redirect extension element provides a means of directing output
from an XSLT stylesheet to more than one output destination. This
extension element is made redundant by the new xsl:result-document
instruction of XSLT 2.0.
The redirect extension element is in the http://xml.apache.org/xalan namespace.