URL from text

gistfile1.txt

- (NSURL *)URLFromText:(NSString *)text {
    NSArray *components = [text componentsSeparatedByCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
    NSURL *ret = nil;
    for (NSString *part in components) {
        NSURL *urlCheck = [NSURL URLWithString:part];
        if (urlCheck &&
            ([urlCheck.scheme isEqualToString:@"http"] ||
             [urlCheck.scheme isEqualToString:@"https"])) {
            ret = urlCheck;
            break;
        }
    }
    
    return ret;
}