public string Convert(INode node)
{
HtmlTraversal traversal = new HtmlTraversal();
traversal.Traverse(node);
return(traversal.GetString().Trim());
}
private void HandleElement(IElement element)
{
this.justClosedDiv = false;
string tagName = element.TagName.ToUpper();
switch (tagName)
{
case "BR":
Write("\n");
break;
case "H1":
case "H2":
case "H3":
Write("\n\n");
HtmlTraversal headingTrav = new HtmlTraversal();
headingTrav.TraverseChildren(element);
string headingText = headingTrav.GetString().Trim();
if (string.IsNullOrEmpty(headingText))
{
break;
}
int dividerLength = headingText.Split('\n').Max(x => x.Length);
string divider;
if (tagName == "H1")
{
divider = new string('+', dividerLength);
}
else
{
divider = new string('-', dividerLength);
}
if (tagName == "H3")
{
Write(headingText);
Write("\n");
Write(divider);
}
else
{
Write(divider);
Write("\n");
Write(headingText);
Write("\n");
Write(divider);
}
Write("\n\n");
break;
case "H4":
case "H5":
case "H6":
Write("\n\n");
TraverseChildren(element);
Write("\n\n");
break;
case "DIV":
if (this.lineLength > 0)
{
Write("\n");
}
TraverseChildren(element);
if (!this.justClosedDiv) // avoid writing new lines twice
{
Write("\n");
}
this.justClosedDiv = true;
break;
case "LI":
HtmlTraversal trav = new HtmlTraversal();
trav.TraverseChildren(element);
string itemText = trav.GetString().Trim();
if (!string.IsNullOrWhiteSpace(itemText))
{
Write("* ");
Write(itemText);
Write("\n");
}
break;
case "P":
case "UL":
Write("\n\n");
TraverseChildren(element);
Write("\n\n");
break;
case "IMG":
string altText = element.GetAttribute("alt");
if (!string.IsNullOrWhiteSpace(altText))
{
Write("[IMG: ");
Write(altText);
Write("] ");
}
break;
case "STYLE":
case "SCRIPT":
case "HEAD":
break;
case "TR":
// Start of table row
Write("| ");
TraverseChildren(element);
// Separate rows with an empty line
Write("\n\n");
break;
case "TD":
case "TH":
TraverseChildren(element);
// Separate table columns with a symbol
Write(" | ");
break;
default:
TraverseChildren(element);
break;
}
}