/// <summary>
/// The depth first visit's implementation.
/// </summary>
/// <param name="onVisit">A depth first visitor delegate. This is called the first time the node is reached.</param>
/// <param name="onLeave">A depth first visitor delegate. This is called after the last child has been visited.</param>
private static void DFVImpl(XElement elem, DepthFirstDelegate onVisit, DepthFirstDelegate onLeave)
{
onVisit(elem);
foreach (XElement childElement in elem.Elements())
{
DFVImpl(childElement, onVisit, onLeave);
}
onLeave(elem);
}
/// <summary>
/// The depth first visit's implementation.
/// </summary>
/// <param name="onVisit">A depth first visitor delegate. This is called the first time the node is reached.</param>
/// <param name="onLeave">A depth first visitor delegate. This is called after the last child has been visited.</param>
private static void DFVImpl(XElement elem, DepthFirstDelegate onVisit, DepthFirstDelegate onLeave)
{
onVisit(elem);
foreach (XElement childElement in elem.Elements())
{
DFVImpl(childElement, onVisit, onLeave);
}
onLeave(elem);
}
/// <summary>
/// Depth First traversal function used to visit each of the
/// differnt elements in a depth first ordering.
/// </summary>
/// <param name="element">Element which this function is being called on.</param>
/// <param name="onVisit">A depth first visitor delegate. This is called the first time the node is reached.</param>
/// <param name="onLeave">A depth first visitor delegate. This is called after the last child has been visited.</param>
public static void DepthFirstVisit(this XElement element, DepthFirstDelegate onVisit, DepthFirstDelegate onLeave)
{
DFVImpl(element, onVisit, onLeave);
}
/// <summary>
/// Depth First traversal function used to visit each of the
/// differnt elements in a depth first ordering.
/// </summary>
/// <param name="element">Element which this function is being called on.</param>
/// <param name="onVisit">A depth first visitor delegate. This is called the first time the node is reached.</param>
/// <param name="onLeave">A depth first visitor delegate. This is called after the last child has been visited.</param>
public static void DepthFirstVisit(this XElement element, DepthFirstDelegate onVisit, DepthFirstDelegate onLeave)
{
DFVImpl(element, onVisit, onLeave);
}