public class Parser {

public void parse(string html, DocumentBuilder builder) {
            HtmlDocument docHtml = new HtmlDocument();
            docHtml.LoadHtml(html);


            HtmlNode currentNode = docHtml.DocumentNode;
            while (currentNode.HasChildNodes || currentNode.NextSibling != null || currentNode.ParentNode.NextSibling != null)
            {
                if (currentNode.HasChildNodes)
                {
                    currentNode = currentNode.FirstChild;
                } else if (currentNode.NextSibling != null)
                {
                    sortirNode(currentNode, builder);
                    currentNode = currentNode.NextSibling;
                } else
                {
                    while (currentNode != docHtml.DocumentNode)
                    {
                        if (currentNode.ParentNode.NextSibling != null)
                        {
                            sortirNode(currentNode, builder);
                            sortirNode(currentNode.ParentNode, builder);
                            currentNode = currentNode.ParentNode.NextSibling;
                            break;
                        } else
                        {
                            sortirNode(currentNode, builder);
                            currentNode = currentNode.ParentNode;
                        }
                    }
                }


                if (currentNode.Name == "ul")
                {
                    builder.Writeln();
                    builder.InsertBreak(BreakType.ParagraphBreak);
                    builder.ParagraphFormat.StyleIdentifier = StyleIdentifier.ListBullet;
                }

                if (currentNode.Name == "li" && ((currentNode.PreviousSibling != null) && (currentNode.PreviousSibling.Name == "li")))
                {
                    builder.Writeln();
                    builder.ParagraphFormat.StyleIdentifier = StyleIdentifier.ListBullet;
                }

                if (currentNode.Name == "#text")
                {

                    if (currentNode.Ancestors("b").Count() > 0 || currentNode.Ancestors("strong").Count() > 0)
                    {
                        builder.Font.Bold = true;
                    }
                    else
                    {
                        builder.Font.Bold = false;
                    }

                    if (currentNode.Ancestors("a").Count() > 0 || currentNode.Ancestors("u").Count() > 0)
                    {
                        builder.Font.Underline = Underline.Single;
                    }
                    else
                    {
                        builder.Font.Underline = Underline.None;
                    }

                    if (currentNode.Ancestors("em").Count() > 0 )
                    {
                        builder.Font.Italic = true;
                    }
                    else
                    {
                        builder.Font.Italic = false;
                    }

                    if (currentNode.Ancestors("h2").Count() > 0)
                    {
                        builder.ParagraphFormat.StyleIdentifier = StyleIdentifier.Heading2;
                    }


                    builder.Write(currentNode.InnerText);
                }
                if (currentNode.Name == "p")
                {
                    builder.InsertBreak(BreakType.ParagraphBreak);
                    builder.InsertParagraph();
                }

            }
}

public void sortirNode(HtmlNode node, DocumentBuilder builder)
        {
            if (node.Name == "h2")
            {
                builder.InsertBreak(BreakType.ParagraphBreak);
                builder.ParagraphFormat.StyleIdentifier = StyleIdentifier.Normal;
            }
        }


}