#pragma once
#include <variant>
#include <vector>
#include <memory>
#include <string>
#include <string_view>

namespace regular {
class RegularTree {
 public:
  class Node {
   public:
    Node();

    void Parse(const std::string&);
    void Parse(const std::string_view);

    enum class Type {
      Addition, Concatenation
    };
    std::variant<std::vector<std::unique_ptr<Node>>, std::string> value;
    Type type;
   private:
  };

  RegularTree(const std::string&);

 private:
  Node node_;
};
}