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#pragma once
#include "nes/common/types.hh"
#include <string_view>
namespace nes
{
/// Non-owning copy of a path, useful for iterating over its components.
class path_view
{
std::string_view path_;
public:
/// An iterator for the path components.
class iterator
{
friend path_view;
char const* current_{ nullptr }; // Start of the current component
u32 component_length_{ 0 }; // Length of the current component
u32 remaining_{ 0 }; // Number of characters remaining in the buffer, including the current component.
public:
auto operator==(iterator const& other) -> bool { return current_ == other.current_; }
auto operator!=(iterator const& other) -> bool { return current_ != other.current_; }
auto operator*() const -> std::string_view;
auto operator++() -> iterator&;
auto operator++(int) -> iterator;
private:
explicit iterator(char const* current, u32 const component_length, u32 const remaining)
: current_{ current }
, component_length_{ component_length }
, remaining_{ remaining }
{
}
};
explicit path_view() = default;
explicit path_view(std::string_view const path)
: path_{ path }
{
}
auto get_path() const -> std::string_view { return path_; }
auto begin() const -> iterator;
auto end() const -> iterator;
auto is_empty() const -> bool { return begin() == end(); }
};
} // namespace nes::app
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