System.Xml.XmlUTF8TextReader.ReadText C# (CSharp) Method

        private void ReadText(bool hasLeadingByteOf0xEF)
        {
            byte[] buffer;
            int offset;
            int offsetMax;
            int length;

            if (_buffered)
            {
                buffer = BufferReader.GetBuffer(out offset, out offsetMax);
                if (hasLeadingByteOf0xEF)
                {
                    length = ReadTextAndWatchForInvalidCharacters(buffer, offset, offsetMax); 
                }
                else
                {
                    length = ReadText(buffer, offset, offsetMax); 
                }
            }
            else
            {
                buffer = BufferReader.GetBuffer(MaxTextChunk, out offset, out offsetMax);
                if (hasLeadingByteOf0xEF)
                {
                    length = ReadTextAndWatchForInvalidCharacters(buffer, offset, offsetMax); 
                }
                else
                {
                    length = ReadText(buffer, offset, offsetMax);
                }
                length = BreakText(buffer, offset, length);
            }
            BufferReader.Advance(length);

            if (offset < offsetMax - 1 - length && (buffer[offset + length] == (byte)'<' && buffer[offset + length + 1] != (byte)'!'))
            {
                MoveToAtomicText().Value.SetValue(ValueHandleType.UTF8, offset, length);
            }
            else
            {
                MoveToComplexText().Value.SetValue(ValueHandleType.UTF8, offset, length);
            }
        }