Creates and returns an NSURL object initialized with a provided string.
Original signature is '+ (id)URLWithString:(NSString *)URLString'
Available in Mac OS X v10.0 and later.


- URLString (NSString)
- The string with which to initialize the NSURL object. Must conform to RFC 2396. This method parses URLString according to RFCs 1738 and 1808.

An NSURL object initialized with URLString. If the string was malformed, returns nil.

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