/// <summary>
/// Simplify nested elements
/// </summary>
/// <param name="articleContent">The document</param>
/// <returns>
/// The clean title
/// </returns>
internal static void SimplifyNestedElements(IElement articleContent)
{
var node = articleContent;
while (node != null)
{
if (node.Parent != null && (new string[] { "DIV", "SECTION" }).Contains(node.TagName) && !(!String.IsNullOrWhiteSpace(node.Id) && node.Id.StartsWith("readability")))
{
if (NodeUtility.IsElementWithoutContent(node))
{
node = NodeUtility.RemoveAndGetNext(node) as IElement;
continue;
}
else if (NodeUtility.HasSingleTagInsideElement(node, "DIV") || NodeUtility.HasSingleTagInsideElement(node, "SECTION"))
{
var child = node.Children[0];
for (var i = 0; i < node.Attributes.Length; i++)
{
child.SetAttribute(node.Attributes[i].Name, node.Attributes[i].Value);
}
node.Parent.ReplaceChild(child, node);
node = child;
continue;
}
}
node = NodeUtility.GetNextNode(node);
}
}
/// <summary>
/// Clean out elements that match the specified conditions
/// </summary>
/// <param name="e">Element to operate on</param>
/// <param name="filter">Filter function on match id/class combination</param>
internal static void CleanMatchedNodes(IElement e, Func <IElement, string, bool> filter = null)
{
var endOfSearchMarkerNode = NodeUtility.GetNextNode(e, true);
var next = NodeUtility.GetNextNode(e);
while (next != null && next != endOfSearchMarkerNode)
{
if (filter(next, next.ClassName + " " + next.Id))
{
next = NodeUtility.RemoveAndGetNext(next as INode) as IElement;
}
else
{
next = NodeUtility.GetNextNode(next);
}
}
}
