public override bool MoveToNext(XPathNodeType type)
{
XNode currentNode = _source as XNode;
if (currentNode != null)
{
XContainer container = currentNode.GetParent();
if (container != null)
{
int mask = GetElementContentMask(type);
if ((TextMask & mask) != 0 && container.GetParent() == null && container is XDocument)
{
mask &= ~TextMask;
}
XNode next = null;
for (XNode node = currentNode; node != null; node = next)
{
next = node.NextNode;
if (((1 << (int)next.NodeType) & mask) != 0 && !(node is XText && next is XText))
{
_source = next;
return(true);
}
}
}
}
return(false);
}
public override bool MoveToNext(XPathNodeType type)
{
XNode n = source as XNode;
if (n != null)
{
XContainer c = n.GetParent();
if (c != null)
{
XNode content = c.LastNode;
int mask = GetElementContentMask(type);
if ((TextMask & mask) != 0 && c.GetParent() == null && c is XDocument)
{
mask &= ~TextMask;
}
while (n != content)
{
XNode next = n.NextNode;
if (((1 << (int)next.NodeType) & mask) != 0 && !(n is XText && next is XText))
{
source = next;
return(true);
}
n = next;
}
}
}
return(false);
}
public override bool MoveToChild(XPathNodeType type)
{
XContainer c = source as XContainer;
if (c != null)
{
XNode content = c.LastNode;
XNode n = content;
if (n != null)
{
int mask = GetElementContentMask(type);
if ((TextMask & mask) != 0 && c.GetParent() == null && c is XDocument)
{
mask &= ~TextMask;
}
do
{
n = n.NextNode;
if (((1 << (int)n.NodeType) & mask) != 0)
{
source = n;
return(true);
}
} while (n != content);
return(false);
}
}
return(false);
}
private static bool IsContent(XContainer c, XNode n)
{
if (c.GetParent() != null || c is XElement)
{
return(true);
}
return(((1 << (int)n.NodeType) & DocumentContentMask) != 0);
}
public override bool MoveToChild(XPathNodeType type)
{
XContainer c = _source as XContainer;
if (c != null)
{
int mask = GetElementContentMask(type);
if ((TextMask & mask) != 0 && c.GetParent() == null && c is XDocument)
{
mask &= ~TextMask;
}
foreach (XNode node in c.Nodes())
{
if (((1 << (int)node.NodeType) & mask) != 0)
{
_source = node;
return(true);
}
}
}
return(false);
}
