NSURLResponse Text Encoding VooDoo

/*
 helper category to get the enum'd NSStringEncoding value from a NSURLResponse

 usage: NSStringEncoding encoding = [myResponse textEncodingEnum];
*/

@interface NSURLResponse (StringEncodingVoodoo)
- (NSStringEncoding) textEncodingEnum;
@end

@implementation NSURLResponse (StringEncodingVoodoo)
- (NSStringEncoding) textEncodingEnum
{
    return CFStringConvertEncodingToNSStringEncoding(CFStringConvertIANACharSetNameToEncoding((CFStringRef)[self textEncodingName]));
}
@end