code: @Override
      protected SaxHandlerParser createSaxHandlerParser(LaContainer parent, String path) {
          final SaxHandlerParser parser = super.createSaxHandlerParser(parent, path);
          final TagHandlerContext context = parser.getSaxHandler().getTagHandlerContext();
          context.addParameter(PARAMETER_BUILDER, this);
          context.addParameter(PARAMETER_BASEPATH, getCurrentBasePath());
          return parser;
      }
docs: ===============