ang = "plain"; break;
        case "htm": lang = "html"; break;
        case "js": lang = "javascript"; break;
        case "h": lang = "c_cpp"; break;
        case "c": lang = "c_cpp"; break;
        case "cpp": lang = "c_cpp"; break;
        case "css":
        case "scss":
        case "php":
        case "html":
        case "json":
        case "xml":
        case "ini":  lang = ext;
      }
    }
    return lang;
  }

  if(typeof file === "undefined") file = "/index.html";

  if(typeof lang === "undef