System.Xml.XmlUTF8TextReader.ReadComment C# (CSharp) Méthode

        private void ReadComment()
        {
            BufferReader.SkipByte();
            if (BufferReader.GetByte() != '-')
                XmlExceptionHelper.ThrowTokenExpected(this, "--", (char)BufferReader.GetByte());
            BufferReader.SkipByte();
            int commentOffset = BufferReader.Offset;
            while (true)
            {
                while (true)
                {
                    byte b = BufferReader.GetByte();
                    if (b == '-')
                        break;
                    if ((s_charType[b] & CharType.Comment) == 0)
                    {
                        if (b == 0xEF)
                            ReadNonFFFE();
                        else
                            XmlExceptionHelper.ThrowInvalidXml(this, b);
                    }
                    else
                    {
                        BufferReader.SkipByte();
                    }
                }

                int offset;
                byte[] buffer = BufferReader.GetBuffer(3, out offset);
                if (buffer[offset + 0] == (byte)'-' &&
                    buffer[offset + 1] == (byte)'-')
                {
                    if (buffer[offset + 2] == (byte)'>')
                        break;
                    XmlExceptionHelper.ThrowXmlException(this, new XmlException(SR.Format(SR.XmlInvalidCommentChars)));
                }
                BufferReader.SkipByte();
            }
            int commentLength = BufferReader.Offset - commentOffset;
            MoveToComment().Value.SetValue(ValueHandleType.UTF8, commentOffset, commentLength);
            BufferReader.Advance(3);
        }