Class parse_key_buffer

src/toml.hpp:12978–13024

#define push_parse_scope(scope)			push_parse_scope_1(scope, __LINE__)

	struct parse_key_buffer
	{
		std::string buffer;
		std::vector<std::pair<size_t, size_t>> segments;
		std::vector<source_position> starts;
		std::vector<source_position> ends;

		void clear() noexcept
		{
			buffer.clear();
			segments.clear();
			starts.clear();
			ends.clear();
		}

		void push_back(std::string_view segment, source_position b, source_position e)
		{
			segments.push_back({ buffer.length(), segment.length() });
			buffer.append(segment);
			starts.push_back(b);
			ends.push_back(e);
		}

		TOML_PURE_INLINE_GETTER
		std::string_view operator[](size_t i) const noexcept
		{
			return std::string_view{ buffer.c_str() + segments[i].first, segments[i].second };
		}

		TOML_PURE_INLINE_GETTER
		std::string_view back() const noexcept
		{
			return (*this)[segments.size() - 1u];
		}

		TOML_PURE_INLINE_GETTER
		bool empty() const noexcept
		{
			return segments.empty();
		}

		TOML_PURE_INLINE_GETTER
		size_t size() const noexcept
		{
			return segments.size();
		}
	};

	struct depth_counter_scope
	{