Initializes the receiver with the XML content referenced by the given URL.
Original signature is '- (id)initWithContentsOfURL:(NSURL *)url'
Available in Mac OS X v10.3 and later.


- url (NSURL)
- An NSURL object specifying a URL. The URL must be fully qualified and refer to a scheme that is supported by the NSURL class.

An initialized NSXMLParser object or nil if an error occurs.

- Available in Monobjc Bridge: 10.6 (For Mac OS X 10.6 and later), 10.5 (For Mac OS X 10.5 and later)