public static function getPath($className, $ext = "php")
  {
    if (substr($className, 0, 1) == "\\") {
      $className = substr($className, 1);
    }
    
    $delimiters = array("_", "\\");
    foreach ($delimiters as $symbol) {
      $className = str_replace($symbol, "/", $className);
    }
    return $className . "." . $ext;
  }