@Override
  public boolean value(@NotNull PsiElement element) {
    final ASTNode node = element.getNode();
    if ((node != null && node.getElementType() == RegExpTT.CHARACTER) ||
        (element instanceof RegExpChar && ((RegExpChar)element).getType() == RegExpChar.Type.CHAR)) {
      return false;
    }
    return true;
  }
@Override
  public boolean value(@NotNull PsiElement element)