Method ForEachTag

libs/editor/xml_feature.hpp:177–181

  template <typename Fn>
  void ForEachTag(Fn && func) const
  {
    for (auto const & tag : GetRootNode().select_nodes("tag"))
      func(tag.node().attribute("k").value(), tag.node().attribute("v").value());
  }

  std::string GetTagValue(std::string_view key) const;
  void SetTagValue(std::string_view key, std::string_view value);