Names and Values of XPath Nodes

In addition to specifying a node's relationship to other nodes in the tree, XPath defines a name and a string value for each node type, as follows:

Node Type	Node Name	Node Value
Root	Empty string ("")	Concatenated value of text in all descendant element nodes and text nodes.
Element	Element name (expanded form, including namespace URI, if any)	Concatenated value of text in all descendant element nodes and text nodes.
Attribute	Attribute name (expanded form, including namespace URI, if any)	The value of the attribute.
Text	Empty string ("")	All text in that node (multiple end-of-line sequences normalized to single newline).
Processing-instruction	The target of the processing instruction	Everything in the processing instruction, except for the target and the white space that follows the target.
Comment	Empty string ("")	All text between the opening `<!`-- and closing `-->` delimiters.
Namespace	Namespace prefix (excluding ":"), or empty string (""), if no prefix is declared for the namespace	The URI which is bound to the namespace.

The following are some of the node names and values associated with the node tree that is presented as a diagram in XPath Nodes Example.

Node	Name	String Value
Root	Empty string ("")	"http//www.example.microsoft.com/catalogbk101$#71;Ambercrombie, KimXMLDeveloper's $#x47;uideComputer44.952000-10-01and&amp." plus text from the remaining <book> element
Comment	Empty string ("")	"catalog last updated 2000-10-01"
`<catalog>` element	"catalog"	"http//www.example.microsoft.com/catalogbk101$#71;Ambercrombie, KimXMLDeveloper's $#x47;uideComputer44.952000-10-01and&amp." plus text from the remaining <book> element
`<book>` element	"book"	"bk101$#71;Ambercrombie, KimXMLDeveloper's $#x47;uideComputer44.952000-10-01and&amp."
xmlns attribute	"id"	"http://www.example.microsoft.com/catalog"

For information about references (such as $#x47; and &), see Character and Entity References.