Method parse_string

src/toml.hpp:13799–13839

		TOML_NODISCARD
		TOML_NEVER_INLINE
		parsed_string parse_string()
		{
			return_if_error({});
			assert_not_eof();
			TOML_ASSERT_ASSUME(is_string_delimiter(*cp));
			push_parse_scope("string"sv);

			// get the first three characters to determine the string type
			const auto first = cp->value;
			advance_and_return_if_error_or_eof({});
			const auto second = cp->value;
			advance_and_return_if_error({});
			const auto third = cp ? cp->value : U'\0';

			// if we were eof at the third character then first and second need to be
			// the same string character (otherwise it's an unterminated string)
			if (is_eof())
			{
				if (second == first)
					return {};

				set_error_and_return_default("encountered end-of-file"sv);
			}

			// if the first three characters are all the same string delimiter then
			// it's a multi-line string.
			else if (first == second && first == third)
			{
				return { first == U'\'' ? parse_literal_string(true) : parse_basic_string(true), true };
			}

			// otherwise it's just a regular string.
			else
			{
				// step back two characters so that the current
				// character is the string delimiter
				go_back(2u);

				return { first == U'\'' ? parse_literal_string(false) : parse_basic_string(false), false };
			}
		}

		TOML_NODISCARD
		TOML_NEVER_INLINE