docs: private void processElseIfCmd(String parms, int cmdTPosBegin, int cmdTPosEnd)
              throws MiniTemplator.TemplateSyntaxException {
          excludeTemplateRange(cmdTPosBegin, cmdTPosEnd);
          if (condLevel < 0) {
              throw new MiniTemplator.TemplateSyntaxException("$elseIf without matching $if.");
          }
          boolean enabled = isCondEnabled(condLevel - 1) && !condPassed[condLevel] && evaluateConditionFlags(parms);
          condEnabled[condLevel] = enabled;
          if (enabled) {
              condPassed[condLevel] = true;
          }
      }