public static HtmlNode Build(IEnumerable <Token> tokens)
{
var documentNode = new HtmlDocumentNode();
HtmlNode currentNode = documentNode;
var stack = new Stack <HtmlNode>();
HtmlAttributeNode currentAttribute = null;
foreach (Token token in tokens)
{
switch (token.Type)
{
case TokenType.OpenTag:
var node = new HtmlElementNode(token.Value);
currentNode = PopCurrentNodeParentIfCurrentNodeIsEmptyTag(stack, currentNode);
currentNode.AppendChild(node);
stack.Push(currentNode);
currentNode = node;
break;
case TokenType.CloseTag:
currentNode = stack.Pop();
break;
case TokenType.AttributeName:
currentAttribute = new HtmlAttributeNode(token.Value);
currentNode.AppendAttribute(currentAttribute);
break;
case TokenType.AttributeValue:
currentAttribute.Value = token.Value;
break;
case TokenType.Text:
currentNode = PopCurrentNodeParentIfCurrentNodeIsEmptyTag(stack, currentNode);
currentNode.AppendChild(new HtmlTextNode(token.Value));
break;
case TokenType.Comment:
currentNode = PopCurrentNodeParentIfCurrentNodeIsEmptyTag(stack, currentNode);
currentNode.AppendChild(new HtmlCommentNode(token.Value));
break;
default:
throw new ArgumentOutOfRangeException();
}
}
return(documentNode);
}