Method scan_string

Source/Utils/json.hpp:6125–6709

! @brief scan a string literal This function scans a string according to Sect. 7 of RFC 7159. While scanning, bytes are escaped and copied into buffer token_buffer. Then the function returns successfully, token_buffer is *not* null-terminated (as it may contain \0 bytes), and token_buffer.size() is the number of bytes in the

                  description.
            */
            token_type scan_string()
            {
                // reset token_buffer (ignore opening quote)
                reset();

                // we entered the function by reading an open quote
                JSON_ASSERT(current == '\"');

                while (true)
                {
                    // get next character
                    switch (get())
                    {
                        // end of file while parsing string
                    case std::char_traits<char_type>::eof():
                    {
                        error_message = "invalid string: missing closing quote";
                        return token_type::parse_error;
                    }

                    // closing quote
                    case '\"':
                    {
                        return token_type::value_string;
                    }

                    // escapes
                    case '\\':
                    {
                        switch (get())
                        {
                            // quotation mark
                        case '\"':
                            add('\"');
                            break;
                            // reverse solidus
                        case '\\':
                            add('\\');
                            break;
                            // solidus
                        case '/':
                            add('/');
                            break;
                            // backspace
                        case 'b':
                            add('\b');
                            break;
                            // form feed
                        case 'f':
                            add('\f');
                            break;
                            // line feed
                        case 'n':
                            add('\n');
                            break;
                            // carriage return
                        case 'r':
                            add('\r');