url_components.h

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#ifndef ADA_URL_COMPONENTS_H
#define ADA_URL_COMPONENTS_H
 
#include "ada/common_defs.h"
 
#include <optional>
#include <string_view>
 
namespace ada {
 
struct url_components {
  constexpr static uint32_t omitted = uint32_t(-1);
 
  url_components() = default;
  url_components(const url_components &u) = default;
  url_components(url_components &&u) noexcept = default;
  url_components &operator=(url_components &&u) noexcept = default;
  url_components &operator=(const url_components &u) = default;
  ~url_components() = default;
 
  /*
   * By using 32-bit integers, we implicitly assume that the URL string
   * cannot exceed 4 GB.
   *
   * https://user:[email protected]:1234/foo/bar?baz#quux
   *       |     |    |          | ^^^^|       |   |
   *       |     |    |          | |   |       |   `----- hash_start
   *       |     |    |          | |   |       `--------- search_start
   *       |     |    |          | |   `----------------- pathname_start
   *       |     |    |          | `--------------------- port
   *       |     |    |          `----------------------- host_end
   *       |     |    `---------------------------------- host_start
   *       |     `--------------------------------------- username_end
   *       `--------------------------------------------- protocol_end
   */
  uint32_t protocol_end{0};
  uint32_t username_end{0};
  uint32_t host_start{0};
  uint32_t host_end{0};
  uint32_t port{omitted};
  uint32_t pathname_start{0};
  uint32_t search_start{omitted};
  uint32_t hash_start{omitted};
 
  [[nodiscard]] constexpr bool check_offset_consistency() const noexcept;
 
  [[nodiscard]] std::string to_string() const;
 
};  // struct url_components
}  // namespace ada
#endif