ctai_labels_2.hpp

template <size_t current_ip, char ...label_chars, typename ...rest_of_tokens, typename ...current_tokens, typename ...current_labels>
struct extract_labels_impl<
    tuple<string<':', label_chars...>, rest_of_tokens...>,
    current_ip,
    tuple<current_tokens...>,
    tuple<current_labels...>>
{
  using extracted = extract_labels_impl<
      tuple<rest_of_tokens...>,
	    current_ip,
	    tuple<current_tokens...>,
	    tuple<current_labels..., label_metadata<string<'.', label_chars...>, current_ip>>>;

  using tokens = typename extracted::tokens;
  using labels = typename extracted::labels;
};