private static string AddFragments(TagReader reader, HtmlFragment parentFragment, Stack <string> openTagStack)
{
while (reader.Read())
{
parentFragment.TryToAddText(HtmlText.Create(reader.Document, reader.PreviousTag, reader.CurrentTag));
if (reader.CurrentTag.TagType == TagType.Close && openTagStack.Any(t => t.Equals(reader.CurrentTag.Name, StringComparison.CurrentCultureIgnoreCase)))
{
return(reader.CurrentTag.Name);
}
var node = parentFragment.AddNode(reader.CurrentTag);
node.Parent = parentFragment;
if (reader.CurrentTag.TagType == TagType.Open)
{
openTagStack.Push(reader.CurrentTag.Name);
var lastClosed = AddFragments(reader, node, openTagStack);
if (lastClosed != openTagStack.Pop())
{
return(lastClosed);
}
}
}
return(null);
}
public static HtmlDocument Load(string document)
{
var root = new HtmlDocument();
if (!string.IsNullOrWhiteSpace(document))
{
if (IsMarkup(document))
{
document = Clean(document);
var reader = TagReader.Create(document);
AddFragments(reader, root, new Stack <string>());
}
else
{
root.TryToAddText(new HtmlText
{
Content = document
});
}
}
return(root);
}
