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XPath Tutorial


XPath

XPath is used to navigate through elements and attributes in an XML document.

XPath is a major element in W3C's XSLT standard.


What is XPath?

XPath
  • XPath is a syntax for defining parts of an XML document
  • XPath uses path expressions to navigate in XML documents
  • XPath contains a library of standard functions
  • XPath is a major element in XSLT
  • XPath is a W3C recommendation

XPath Path Expressions

XPath uses path expressions to select nodes or node-sets in an XML document. These path expressions look very much like the expressions you see when you work with a traditional computer file system.


XPath Standard Functions

XPath includes over 100 built-in functions. There are functions for string values, numeric values, date and time comparison, node and QName manipulation, sequence manipulation, Boolean values, and more.


XPath is Used in XSLT

XPath is a major element in the XSLT standard. Without XPath knowledge you will not be able to create XSLT documents.


XPath is a W3C Recommendation

XPath became a W3C Recommendation 16. November 1999.

XPath was designed to be used by XSLT, XPointer and other XML parsing software.