XPath, a language for selecting an XML document's parts, lets you treat an XML document like a filesystem. XPath queries start with a current element or attribute (much like a current directory within a filesystem) and let you specify other nodes relative to your location. For example, the path ".." takes you to the parent element. "aaa" takes you to a child node called aaa and the path "/aaa/*" jumps to the root element called aaa and selects the elements inside. While that resembles a filesystem, XPath gets much cleverer. For example: "ccc[5]" selects the fifth ccc element"ddd//eee" selects all eee elements with ancestors (however distant) called ddd"//fff[@name='foo']" selects all fff elements with the attribute name set to foo"//ggg/following::*" selects the elements following the first ggg element Xalan, Saxon, Jaxen, and DOM4J let you select nodes using XPath expressions. XPath is particularly valuable here if you use XML to configure an application: rather than digging around your document using DOM or SAX, you can simply request the element you want to read. XPath is the platform upon which XSLT, XPointer, and other technologies are built.
A way of referencing information within an XML document, intended as a bridge between XPointer and XSLT. XPath uses a directory notation to perform queries through the selectNodes architecture and lets you determine which elements within an XML document satisfy a given set of criteria.
A non-XML language for identifying specific parts of an XML document. This is not just for use in navigation, but also in querying and transforming XML. XPATH expressions are frequently used in XSLT.
XPath is a set of syntax rules (language) for defining parts of an XML document. XPath is a major part of the W3C XSL standard.
A query language that identifies a set of nodes within an XML document. Originally defined to be used with XSLT, it's also used by other specifications such as Schematron, XPointer, W3C XML Schema or XForms; see http://www.w3.org/TR/xpath.
a path expression that locates nodes in a DOM tree
a series of steps, much like a directory path, where each step names an element or other type of XML construct
A method for accessing nodes (and the data) within XML documents.
The open standard syntax for addressing elements within a document used by XSL and XPointer. XPath is currently a W3C recommendation. It specifies the data model and grammar for navigating an XML document utilized by XSLT, XLink and XML Query.
A W3C standard for locating parts of an XML document. XPath also supports a number of document functions. See specification here
b . A language for addressing elements and asserting expressions in XML documents. It is commonly used in XSLT and DOM programming. See: eXtensible Stylesheet Language (XSL), XSLT, Document Object Model (DOM) Links: XPath Spec
Request language for database - data are not updated. Norm W3C - language which allows the access to an element of an XML tree. see XSL.
XPath is a language specified by W3C for addressing parts of an XML document, designed to be used by both XSLT and XPointer.
XPath is a language for addressing parts of an XML document, designed to be used by both XSLT and XPointer. See also XPointer, XSLT More at http://www.w3.org/TR/xpath
W3C Recommendation 16 November 1999 XPath provides the syntax and data model to address segments of an XML document. Conceptually it relates to DOM as objects in a document are regarded to have family relationships such as parent, children and siblings. With XPath the nodes between family members can be accessed and manipulated. XPath can be thought of as the path that should be followed to reach a target. XPath relates conceptually to XLink and XPointer.
A method of specifying locations or patterns of locations within an XML document.
The result of an effort to provide a common syntax and semantics for functionality shared between XSL Transformations (XSLT) and XPointer. The primary purpose of XPath is to address parts of an XML document. It also provides basic facilities for manipulation of strings, numbers and booleans. XPath uses a compact, non-XML syntax to facilitate use of XPath within URI s and XML attribute values. XPath gets its name from its use of a path notation as used in URLs for navigating through the hierarchical structure of an XML document.
The part of XSLT that defines access to data through the tag hierarchy by pattern matching and searching.
An XML query language for locating nodes with an XML tree structure. It allows location paths, predicates, and general expressions in queries. The Cocoa implementation uses XPath 2.0, which is a World Wide Web Consortium recommendation. The NSXMLNode class enables XPath queries through its nodesForXPath:error: method. (Note that the NSXML classes do not support deprecated XPath 1.0 features such as namespace axis.)
This language allows specific nodes or values to be selected from a source document for manipulation and presentation (perhaps via XSLT).
A standard used in XSLT to specify and locate elements in the input document's XML hierarchy. XPath is fully described in the W3C specification at http://w3c.org/TR/xpath.
Declarative way to define a subset of an XML document that you are interested in. Robust to many structural changes to the document.
XPath is a language that describes a way to locate and process items in XML documents by using an addressing syntax based on a path through the document's logical structure or hierarchy.
Used to define the parts of an XML document, using path expressions.