System.Xml.XmlUTF8NodeWriter.WriteEscapedText C# (CSharp) Méthode

        public override void WriteEscapedText(byte[] chars, int offset, int count)
        {
            bool[] isEscapedChar = (_inAttribute ? _isEscapedAttributeChar : _isEscapedElementChar);
            int isEscapedCharLength = isEscapedChar.Length;
            int i = 0;
            for (int j = 0; j < count; j++)
            {
                byte ch = chars[offset + j];
                if (ch < isEscapedCharLength && isEscapedChar[ch])
                {
                    WriteUTF8Chars(chars, offset + i, j - i);
                    WriteCharEntity(ch);
                    i = j + 1;
                }
                else if (ch == 239 && offset + j + 2 < count)
                {
                    // 0xFFFE and 0xFFFF must be written as char entities
                    // UTF8(239, 191, 190) = (char) 0xFFFE
                    // UTF8(239, 191, 191) = (char) 0xFFFF
                    byte ch2 = chars[offset + j + 1];
                    byte ch3 = chars[offset + j + 2];
                    if (ch2 == 191 && (ch3 == 190 || ch3 == 191))
                    {
                        WriteUTF8Chars(chars, offset + i, j - i);
                        WriteCharEntity(ch3 == 190 ? (char)0xFFFE : (char)0xFFFF);
                        i = j + 3;
                    }
                }
            }
            WriteUTF8Chars(chars, offset + i, count - i);
        }