@Override
  public void getLanguagesToInject(@NotNull MultiHostRegistrar registrar, @NotNull PsiElement context) {

    if (Holder.PATTERN.accepts(context)) {
      registrar.startInjecting(XsdRegExpParserDefinition.LANGUAGE).
        addPlace(null, null, (PsiLanguageInjectionHost)context, ElementManipulators.getValueTextRange(context)).
        doneInjecting();
    }
  }
@Override
  public void getLanguagesToInject(@NotNull MultiHostRegistrar registrar, @NotNull PsiElement context)