Code to match parts of a url using NSPredicates

gistfile1.m

    NSURL* url = [NSURL URLWithString:@"http://www.google.com/path/to/foo?aParam=value"];
    url.absoluteString;
    url.host;
    url.scheme;
    url.path;
    
    NSArray* arr = [NSArray arrayWithObjects:url, [NSURL URLWithString:@"https://marcuswest.in/teachers"], nil];
    
    NSLog(@"scheme %@", [arr filteredArrayUsingPredicate:[NSPredicate predicateWithFormat:@"scheme MATCHES 'http'"]]);
    NSLog(@"host %@", [arr filteredArrayUsingPredicate:[NSPredicate predicateWithFormat:@"host MATCHES 'www.google.com'"]]);
    NSLog(@"host 2 %@", [arr filteredArrayUsingPredicate:[NSPredicate predicateWithFormat:@"host MATCHES '^www.google.*'"]]);
    NSLog(@"path %@", [arr filteredArrayUsingPredicate:[NSPredicate predicateWithFormat:@"path MATCHES '^www.google.*'"]]);
    NSLog(@"absolute %@", [arr filteredArrayUsingPredicate:[NSPredicate predicateWithFormat:@"absoluteString MATCHES '^http.*path.*'"]]);