FilterResult Check(INode node)
{
if (!_settings.Accepts(node))
{
return(FilterResult.Skip);
}
return(_filter(node));
}
public INode Next()
{
var node = _reference;
var beforeNode = _beforeNode;
do
{
if (!beforeNode)
{
node = _iterator.SkipWhile(m => !Object.ReferenceEquals(m, node)).Skip(1).FirstOrDefault();
}
if (node == null)
{
return(null);
}
beforeNode = false;
}while (!_settings.Accepts(node) || _filter.Invoke(node) != FilterResult.Accept);
_beforeNode = false;
_reference = node;
return(node);
}
/// <summary>
/// Gets the elements that satisfy the provided filter settings.
/// </summary>
/// <typeparam name="T">The type of nodes to obtain.</typeparam>
/// <param name="parent">The parent of the nodes to find.</param>
/// <param name="filter">The filter settings to apply.</param>
/// <returns>
/// The filtered list of all descendents from the provided node.
/// </returns>
public static IEnumerable <T> GetElements <T>(this INode parent, FilterSettings filter)
where T : class, INode
{
return(parent.GetElements <T>(predicate: (node => filter.Accepts(node))));
}