找出字符串中的网址

NSString *regulaStr = @"\\bhttps?://[a-zA-Z0-9\\-.]+(?::(\\d+))?(?:(?:/[a-zA-Z0-9\\-._?,'+\\&%$=~*!():@\\\\]*)+)?";
    NSRegularExpression *regex = [NSRegularExpression regularExpressionWithPattern:regulaStr
                                                                           options:NSRegularExpressionCaseInsensitive
                                                                             error:&error];
    NSArray *arrayOfAllMatches = [regex matchesInString:string options:0 range:NSMakeRange(0, [string length])];

    for (NSTextCheckingResult *match in arrayOfAllMatches)
    {
        NSString* substringForMatch = [string substringWithRange:match.range];
        NSLog(@"substringForMatch%@",substringForMatch);
    }