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CHAPTER 9: Integrating XML into JavaScript XML Object Reference 254

Global functions

These functions are available in the JavaScript global namespace.

xpath()

xmlObj.xpath (expression[, variables]);

expression

A String containing an XPath expression.

OTE: In this context, include the actual top level element. For example, an

expression for the example XML must start with “/bookstore”. This is unlike

JavaScript property access, where the top level element is implied.

variables

Optional. A JavaScript object containing variable definitions. The properties are used

to look up XPath variables contained in the expression. For example, if the

expression contains the variable

$abc, the value is in the object’s abc property.

Evaluates an XPath expression in accordance with the W3C XPath recommendation, using this XML

object as the context node. The context position and size are set to 1, and all variables are initially

unbound. If this XML object is a list, evaluates all contained XML element nodes (not comments or

other node types) and return the results in a list in the order of execution.

If the XPath expression does not evaluate to a node list, throws a JavaScript exception.

Returns an XML object

, the result of evaluation.

isXMLName()

isXMLName (String name)

name

A string.

Reports whether a string contains a name that conforms to valid XML syntax.

OTE: This implementation uses the same rules as for a JavaScript name, except for the '$' character,

which is disallowed, and the '-' character, which as added. It does not follow the W3C definition of an

XML name, which adds more Unicode characters to the valid set of characters.

Returns true if the name is a valid XML name, false otherwise.

setDefaultXMLNamespace()

setDefaultXMLNamespace (Namespace ns)

A Namespace object. Any prefix is ignored.

Sets the default namespace for XML objects. You can also set the default namespace using this

syntax:

default xml namespace = Namespace object

default xml namespace = URL_string

Returns undefined.

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EDOBE XDOM TAKE 6 IR - PRODUCTSHEET Spezifikationen Seite 254