public static @Nullable XmlContentDFA getContentDFA(@NotNull XmlTag parentTag) {

    if (TemplateLanguageUtil.isInsideTemplateFile(parentTag)) return null;

    XmlContentDFA contentDFA = XsContentDFA.createContentDFA(parentTag);
    if (contentDFA != null) return contentDFA;
    return XmlContentDFAImpl.createContentDFA(parentTag);
  }
public static @Nullable XmlContentDFA getContentDFA(@NotNull XmlTag parentTag)