docs: private void processIfCmd(String parms, int cmdTPosBegin, int cmdTPosEnd)
              throws MiniTemplator.TemplateSyntaxException {
          excludeTemplateRange(cmdTPosBegin, cmdTPosEnd);
          if (condLevel >= maxCondLevels - 1) {
              throw new MiniTemplator.TemplateSyntaxException("Too many nested $if commands.");
          }
          condLevel++;
          boolean enabled = isCondEnabled(condLevel - 1) && evaluateConditionFlags(parms);
          condEnabled[condLevel] = enabled;
          condPassed[condLevel] = enabled;
      }