System.Xml.XmlBufferReader.GetQuoteCharEntity C# (CSharp) Метод

        private int GetQuoteCharEntity(int offset, int length)
        {
            byte[] buffer = _buffer;
            if (length != 6 ||
                buffer[offset + 1] != (byte)'q' ||
                buffer[offset + 2] != (byte)'u' ||
                buffer[offset + 3] != (byte)'o' ||
                buffer[offset + 4] != (byte)'t')
            {
                XmlExceptionHelper.ThrowInvalidCharRef(_reader);
            }
            return (int)'"';
        }