如何使用Agility Pack从HTML剥离注释而不丢失DOCTYPE [英] How to strip comments from HTML using Agility Pack without losing DOCTYPE

问题描述

我正在尝试从HTML中删除不必要的内容.具体来说，我想删除评论.我找到了一个很好的解决方案(使用HTML Agility Pack )，但是DOCTYPE被视为注释，因此与注释一起被删除.如何改善下面的代码以确保保留DOCTYPE?

I am trying to remove unnecessary content from HTML. Specifically I want to remove comments. I found a pretty good solution (Grabbing meta-tags and comments using HTML Agility Pack) however the DOCTYPE is treated as a comment and therefore removed along with the comments. How can I improve the code below to make sure the DOCTYPE is preserved?

var htmlDoc = new HtmlDocument();
htmlDoc.LoadHtml(htmlContent);
var nodes = htmlDoc.DocumentNode.SelectNodes("//comment()");
if (nodes != null)
{
    foreach (HtmlNode comment in nodes)
    {
        comment.ParentNode.RemoveChild(comment);
    }
}

推荐答案

检查注释是否不以DOCTYPE

  foreach (var comment in nodes)
  {
     if (!comment.InnerText.StartsWith("DOCTYPE"))
         comment.ParentNode.RemoveChild(comment);
  }

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