Method json_pointer

3rd/json/include/nlohmann/json.hpp:8455–8457

! @brief create JSON pointer Create a JSON pointer according to the syntax described in [Section 3 of RFC6901](https://tools.ietf.org/html/rfc6901#section-3). @param[in] s string representing the JSON pointer; if omitted, the empty string is assumed which references the whole JSON value @throw parse_error.107 if the given JSON pointer @a s is nonempty and

    @since version 2.0.0
    */
    explicit json_pointer(const std::string& s = "")
        : reference_tokens(split(s))
    {}

    /*!
    @brief return a string representation of the JSON pointer