code: public boolean equalAny(final TokenType... tokenTypes) {
          for (TokenType each : tokenTypes) {
              if (each == lexer.getCurrentToken().getType()) {
                  return true;
              }
          }
          return false;
      }
docs: Judge current token equals one of input tokens or not.
  
  @param tokenTypes to be judged token types
  @return current token equals one of input tokens or not