public override bool IsDescendant(XPathNavigator nav)
{
SeekableDTMXPathNavigator2 another = nav as SeekableDTMXPathNavigator2;
if (another == null || another.document != this.document)
{
return(false);
}
if (another.currentNode == currentNode)
{
return(!another.currentIsNode);
}
int tmp = nodes [another.currentNode].Parent;
// ancestors must appear in prior on the node list.
if (tmp < currentNode)
{
return(false);
}
while (tmp != 0)
{
if (tmp == currentNode)
{
return(true);
}
tmp = nodes [tmp].Parent;
}
return(false);
}
public override bool IsSamePosition(XPathNavigator other)
{
SeekableDTMXPathNavigator2 another = other as SeekableDTMXPathNavigator2;
if (another == null || another.document != this.document)
{
return(false);
}
if (this.currentNode != another.currentNode ||
this.currentIsAttr != another.currentIsAttr ||
this.currentIsNode != another.currentIsNode)
{
return(false);
}
if (currentIsAttr)
{
return(this.currentAttr == another.currentAttr);
}
else if (!currentIsNode)
{
return(this.currentNs == another.currentNs);
}
return(true);
}
// Copy constructor including position informations.
public SeekableDTMXPathNavigator2(SeekableDTMXPathNavigator2 org)
{
document = org.document;
currentIsNode = org.currentIsNode;
currentIsAttr = org.currentIsAttr;
currentNode = org.currentNode;
currentAttr = org.currentAttr;
currentNs = org.currentNs;
}
// Copy constructor including position informations.
public SeekableDTMXPathNavigator2 (SeekableDTMXPathNavigator2 org)
{
document = org.document;
currentIsNode = org.currentIsNode;
currentIsAttr = org.currentIsAttr;
currentNode = org.currentNode;
currentAttr = org.currentAttr;
currentNs = org.currentNs;
}
public override bool MoveTo(XPathNavigator other)
{
SeekableDTMXPathNavigator2 another = other as SeekableDTMXPathNavigator2;
if (another == null || another.document != this.document)
{
return(false);
}
this.currentNode = another.currentNode;
this.currentAttr = another.currentAttr;
this.currentNs = another.currentNs;
this.currentIsNode = another.currentIsNode;
this.currentIsAttr = another.currentIsAttr;
return(true);
}
public DTMXPathDocument2 (XmlNameTable nameTable,
DTMXPathLinkedNode2 [] nodes,
DTMXPathAttributeNode2 [] attributes,
DTMXPathNamespaceNode2 [] namespaces,
string [] atomicStringPool,
string [] nonAtomicStringPool,
Hashtable idTable)
{
this.Nodes = nodes;
this.Attributes = attributes;
this.Namespaces = namespaces;
this.AtomicStringPool = atomicStringPool;
this.NonAtomicStringPool = nonAtomicStringPool;
this.IdTable = idTable;
this.NameTable = nameTable;
root = new SeekableDTMXPathNavigator2 (this);
}
public DTMXPathDocument2(XmlNameTable nameTable,
DTMXPathLinkedNode2 [] nodes,
DTMXPathAttributeNode2 [] attributes,
DTMXPathNamespaceNode2 [] namespaces,
string [] atomicStringPool,
string [] nonAtomicStringPool,
Hashtable idTable)
{
this.Nodes = nodes;
this.Attributes = attributes;
this.Namespaces = namespaces;
this.AtomicStringPool = atomicStringPool;
this.NonAtomicStringPool = nonAtomicStringPool;
this.IdTable = idTable;
this.NameTable = nameTable;
root = new SeekableDTMXPathNavigator2(this);
}
public override XmlNodeOrder ComparePosition(XPathNavigator nav)
{
SeekableDTMXPathNavigator2 another = nav as SeekableDTMXPathNavigator2;
if (another == null || another.document != this.document)
{
return(XmlNodeOrder.Unknown);
}
if (currentNode > another.currentNode)
{
return(XmlNodeOrder.After);
}
else if (currentNode < another.currentNode)
{
return(XmlNodeOrder.Before);
}
// another may attr or ns,
// and this may be also attr or ns.
if (another.currentIsAttr)
{
if (this.currentIsAttr)
{
if (currentAttr > another.currentAttr)
{
return(XmlNodeOrder.After);
}
else if (currentAttr < another.currentAttr)
{
return(XmlNodeOrder.Before);
}
else
{
return(XmlNodeOrder.Same);
}
}
else
{
return(XmlNodeOrder.Before);
}
}
else if (!another.currentIsNode)
{
if (!this.currentIsNode)
{
if (currentNs > another.currentNs)
{
return(XmlNodeOrder.After);
}
else if (currentNs < another.currentNs)
{
return(XmlNodeOrder.Before);
}
else
{
return(XmlNodeOrder.Same);
}
}
else
{
return(XmlNodeOrder.Before);
}
}
else
{
return(!another.currentIsNode ? XmlNodeOrder.Before : XmlNodeOrder.Same);
}
}
