如何使用HTMLAgilityPack修复html标签（缺少<open>＆<close>标签）

Question

I have an html with <div><h1> hello Hi</div> <div>hi </p></div>

Required Output : <div><h1> hello </h1></div> <div><p>hi </p></div>

Using HTML agility pack is it possible to fix this kind of similar issues with missing closing and opening tags?

Answer 1

The library isn't intelligent enough to create the opening p where you put it, but it's intelligent enough to create the missing h1 . And in general, it creates valid HTML always, but not always the one you would expect.

So this code:

        HtmlDocument doc = new HtmlDocument();
        doc.Load(yourhtml);
        doc.Save(Console.Out);

will dump this:

<div><h1> hello Hi</h1></div> <div>hi <p></div>

Which is not what you want, but is valid HTML. You can also add a little trick like this:

        HtmlNode.ElementsFlags["p"] = HtmlElementFlag.Closed;
        HtmlDocument doc = new HtmlDocument();
        doc.Load(yourhtml);
        doc.Save(Console.Out);

that will dump this:

<div><h1> hello Hi</h1></div> <div>hi <p></p></div>

Answer 2

在进行HtmlAgilityPack.HtmlDocument.LoadHTML(yourhtml) HTMLAgilityPack会自动为您修复标记，然后您可以使用以下命令访问这些标记： HtmlAgilityPack.HtmlDocument.DocumentNode.OuterHTML