private void ProcessNextXmlToken(BinaryXmlElement element, ref int offset)
{
if (offset >= element.Offset + element.Length)
{
return;
}
byte nextToken = this.buffer[offset];
switch (nextToken)
{
case 0x00:
////EOF for the xml
offset++;
return;
case 0x01:
case 0x41:
////starting a new element.
return;
case 0x02:
case 0x03:
////closing a start element or empty element
offset++;
this.ProcessNextXmlToken(element, ref offset);
break;
case 0x04:
////End tag of an element
offset++;
this.ProcessNextXmlToken(element, ref offset);
break;
case 0x05:
////value
this.ReadAttribute(element, ref offset);
this.ProcessNextXmlToken(element, ref offset);
break;
case 0x0D:
case 0x0E:
////I'm not 100% about the 0x0D
offset++;
element.ValueIndex = BitConverter.ToInt16(this.buffer, offset);
offset += 2;
element.ValueType = (BinaryValueType)this.buffer[offset];
offset++;
this.ProcessNextXmlToken(element, ref offset);
break;
}
}
private BinaryXmlElement ReadBinaryXmlElement(ref int offset)
{
bool hasAttributes = this.buffer[offset] == 0x41;
BinaryXmlElement element = new BinaryXmlElement();
element.Offset = offset;
////I don't know what the next two bytes mean
offset += 3;
element.Length = BitConverter.ToInt32(this.buffer, offset) + 7;
offset += 4;
int nameOffset = BitConverter.ToInt32(this.buffer, offset);
element.Name = this.ReadName(ref nameOffset);
if (nameOffset < element.Offset)
{
////The name was stored with a previous element. Restore the offset plus the length of pointer for the name
offset += 4;
nameOffset = offset;
}
if (hasAttributes)
{
int attributesOffset = nameOffset;
int attributesSize = BitConverter.ToInt32(this.buffer, attributesOffset);
attributesOffset += 4;
offset = attributesOffset;
while (hasAttributes)
{
hasAttributes = this.buffer[attributesOffset] == 0x46;
attributesOffset++;
offset = attributesOffset;
////seems silly because this is getting an offset immeadiately after the offset
attributesOffset = BitConverter.ToInt32(this.buffer, attributesOffset);
BinaryXmlAttribute attribute = new BinaryXmlAttribute();
attribute.Name = this.ReadName(ref attributesOffset);
if (attributesOffset < element.Offset)
{
////The name was stored with a previous element. Restore the offset plus the length of pointer for the name
attributesOffset = offset + 4;
}
this.ReadAttribute(attribute, ref attributesOffset);
element.Attributes.Add(attribute);
}
offset = attributesOffset;
}
else
{
offset = nameOffset;
}
this.ProcessNextXmlToken(element, ref offset);
while (offset < element.Offset + element.Length &&
(this.buffer[offset] == 0x41 || this.buffer[offset] == 0x01))
{
element.Children.Add(this.ReadBinaryXmlElement(ref offset));
}
this.ProcessNextXmlToken(element, ref offset);
if (this.buffer[offset] == 0x00)
{
////null terminator for the template
offset++;
}
return(element);
}