original_string: public static function isNotPubliclyRoutable(UriInterface $url): bool
      {
          $host = $url->getHost();
          if ('' === $host) {
              return true;
          }
  
          $hostObject = new Host($host);
  
          if (!$hostObject->isPubliclyRoutable()) {
              return true;
          }
  
          $hostContainsDots = substr_count($host, '.');
          if (!$hostContainsDots) {
              return true;
          }
  
          if ('.' === $host[0] || '.' === $host[-1]) {
              return true;
          }
  
          return false;
      }
code: public static function isNotPubliclyRoutable(UriInterface $url): bool
      {
          $host = $url->getHost();
          if ('' === $host) {
              return true;
          }
  
          $hostObject = new Host($host);
  
          if (!$hostObject->isPubliclyRoutable()) {
              return true;
          }
  
          $hostContainsDots = substr_count($host, '.');
          if (!$hostContainsDots) {
              return true;
          }
  
          if ('.' === $host[0] || '.' === $host[-1]) {
              return true;
          }
  
          return false;
      }
code_tokens: public static function isNotPubliclyRoutable ( UriInterface $ url ) : bool { $ host = $ url -> getHost ( ) ; if ( '' === $ host ) { return true ; } $ hostObject = new Host ( $ host ) ; if ( ! $ hostObject -> isPubliclyRoutable ( ) ) { return true ; } $ hostContainsDots = substr_count ( $ host , '.' ) ; if ( ! $ hostContainsDots ) { return true ; } if ( '.' === $ host [ 0 ] || '.' === $ host [ - 1 ] ) { return true ; } return false ; }
docstring: Can a URL fail to be accessed over the public internet?
  
  There are certain cases where we can be certain that a URL cannot be accessed over the public internet:
  
  - no host
  - having a host that is not publicly routable (such as a within a private IP range)
  - having a hostname lacking dots
  - having a hostname starting or ending with a dot
  
  @param UriInterface $url
  
  @return bool
  
  @throws InvalidExpressionException
docstring_tokens: Can a URL fail to be accessed over the public internet?