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Home >Online Product Documentation >Table of Contents >XPath Syntax Quick Reference XPath Syntax Quick ReferenceThis topic provides a quick reference for XPath expression syntax. AxesXPath provides the following axes:
l ancestor
l ancestor-or-self
l attribute
l child
l descendant
l descendant-or-self
l following
l following-sibling
l namespace
l parent
l preceding
l preceding-sibling
l self
Node TestsXPath provides the following node tests:
l * selects all nodes of the specified name. For the attribute axis, attributes are selected. For the namespace axis, namespace nodes are selected. For all other axes, element nodes are selected.
l comment() selects all comment nodes.
l element_name selects all element_name nodes.
l node() selects all nodes.
l processing-instruction(["some_literal"]) selects all processing instructions. If some_literal is specified, processing-instruction() selects all processing instructions with some_literal as their name.
l text() selects all text nodes.
FiltersA filter specifies a constraint on a node set with respect to an axis to produce a new node set. Location StepsA location step has the following format: XPath ExpressionAn XPath expression has one of the following formats:
A function call or an XPath expression in parentheses can appear only at the very beginning of an XPath expression. An expression in parentheses always returns a node set. Any function that appears at the beginning of an XPath location step expression must return a node set. |
XML PRODUCTIVITY THROUGH INNOVATION ™
