Method parser

external/json/json.hpp:4869–4876

a parser reading from an input adapter

    /// a parser reading from an input adapter
    explicit parser(detail::input_adapter_t&& adapter,
                    const parser_callback_t cb = nullptr,
                    const bool allow_exceptions_ = true)
        : callback(cb), m_lexer(std::move(adapter)), allow_exceptions(allow_exceptions_)
    {
        // read first token
        get_token();
    }

    /*!
    @brief public parser interface