I am replacing some head script that pertains to a specific widget. I want to be able to find all nodes relating to that widget located between the comments. Also, I want to easily remove any code related to the specified widget (including the start and end comment.
The insert and removed code will look like this:
<!-- WidgetScript_WidgetName -->
<script src="Widgets/jquery.somecode.js" type="text/javascript"></script>
<script type="text/javascript">
$(functi开发者_StackOverflow社区on () {
$('.someid).dothis({parameter, avatar_size: 48, count: 6});
});
</script>
<link href="Widgets/jquery.somecode.css" media="all" rel="stylesheet" type="text/css"/>
<!--WidgetScript_WidgetName End-->
Try using the following:
var startNode = document.DocumentNode.SelectSingleNode("//comment()[contains(., 'WidgetScript_WidgetName')]");
var endNode = document.DocumentNode.SelectSingleNode("//comment()[contains(., 'WidgetScript_WidgetName End')]");
int startNodeIndex = startNode.ParentNode.ChildNodes.IndexOf(startNode);
int endNodeIndex = endNode.ParentNode.ChildNodes.IndexOf(endNode);
var nodes = startNode.ParentNode.ChildNodes.Where((n, index) => index >= startNodeIndex && index <= endNodeIndex).Select(n => n);
I would suggest something like this:
var head = document.DocumentNode.SelectSingleNode("html/head");
var nodes = new List<HtmlNode>();
bool isComment = false;
foreach (var node in head.ChildNodes.ToList())
{
if (node.NodeType == HtmlNodeType.Comment &&
node.InnerText.Contains("WidgetScript_WidgetName"))
{
isComment = !isComment;
node.Remove();
}
else if (isComment)
{
nodes.Add(node);
node.Remove();
}
}
Console.WriteLine(head.InnerHtml);
This removes every node between two comments (and the comments themselves).
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