public DependencyObject[] Generate(HtmlNode node, IHtmlTextBlock textBlock)
{
var ctrl = GenerateSingle(node, textBlock);
if (ctrl != null)
return new [] { ctrl };
return null;
}
public HtmlNode Parse(string html)
{
if (html == null)
html = "";
html = html.Replace("\n", "");
html = html.RemoveHtmlWhitespaces();
html = html.ConvertUtf8Characters();
html = html.ConvertHtmlCharacters();
html = html.Replace("\r", "").Replace("\n", "").Replace("\t", "");
html = html.Replace("<br>", "\n").Replace("<br />", "\n").Replace("<br/>", "\n");
html = html.Replace("<BR>", "\n").Replace("<BR />", "\n").Replace("<BR/>", "\n");
html = html.Trim('\n', '\r', ' ');
html = "<p>" + html + "</p>";
var matches = Regex.Matches(html, "<(.*?)>|</(.*?)>|<(.*?)/>|([^<>]*)");
var tokens = matches.OfType<Group>().Select(m => m.Value).ToArray();
var root = new HtmlNode("html", true);
var stack = new Stack<HtmlNode>();
stack.Push(root);
foreach (var token in tokens)
{
if (token.StartsWith("</") && token.EndsWith(">")) // end tag
{
var value = token.Substring(2, token.Length - 3);
var node = stack.Peek();
if (node.Value == value)
stack.Pop();
// else
// throw new Exception("malformed html");
}
else if (token.StartsWith("<") && token.EndsWith("/>")) // full tag
{
var value = token.Substring(1, token.Length - 3);
stack.Peek().AddChild(new HtmlNode(value, true));
}
else if (token.StartsWith("<") && token.EndsWith(">")) // start tag
{
var value = token.Substring(1, token.Length - 2);
var node = new HtmlNode(value, true);
stack.Peek().AddChild(node);
stack.Push(node);
}
else if (!string.IsNullOrEmpty(token)) // text
stack.Peek().AddChild(new HtmlNode(token, false));
}
return root;
}
public abstract DependencyObject GenerateSingle(HtmlNode node, IHtmlTextBlock textBlock);
internal void AddChild(HtmlNode node)
{
Children.Add(node);
}
