Both XSLT and XPointer extend XPath by defining additional functions; some of these functions operate on the four basic types; others operate on additional data types defined by XSLT and XPointer.
The namespace declarations consist of a mapping from prefixes to namespace URIs.
The result of evaluating an expression that is a location path is the node-set containing the nodes selected by the location path.
This enhances the functionality and interoperability of the Web.One important kind of expression is a location path.A location path selects a set of nodes relative to the context node.Although XPath 1.0 remains widely used, and is referenced normatively from other W3C specifications, readers are advised that later versions exist, and that no further maintenance (including correction of reported errors) is planned for this document.
Readers interested in the most recent version of the XPath specification are encouraged to refer to https://This document has been reviewed by W3C Members and other interested parties and has been endorsed by the Director as a W3C Recommendation.