private void parseGrammarContent(boolean allowInclude) {
    final IElementType t = currentToken();
    if (t == KEYWORD_START) {
      parseStart();
    } else if (t == KEYWORD_DIV) {
      parseDiv();
    } else if (allowInclude && t == KEYWORD_INCLUDE) {
      parseInclude();
    } else if (IDENTIFIERS.contains(t)) {
      parseDefine();
    } else {
      error(XmlPsiBundle.message("xml.parsing.unexpected.token"));
      advance();
    }
  }
private void parseGrammarContent(boolean allowInclude)