Remove All html tag except one tag

Question

I have some code to remove all html tag but I want to remove all html but except </td> and </tr> tags.

How can this be done?

public string HtmlStrip( string input)
{
    input = Regex.Replace(input, "<input>(.|\n)*?</input>", "*");
    input = Regex.Replace(input, @"<xml>(.|\n)*?</xml>", "*"); // remove all <xml></xml> tags and anything inbetween.  
    return Regex.Replace(input, @"<(.|\n)*?>", "*"); // remove any tags but not there content "<p>bob<span> johnson</span></p>" becomes "bob johnson"
}

@IlyaIvanov Reminded me of the exact same thing. OP, using regex to parse HTML is a dangerous venture. You should use some other method (like representing your HTML as XML) instead. — tnw, Mar 21 '13 at 20:42
So you want to remove all HTML except for two _closing_ tags? What about the opening tags (e.g. `` and ``)? — Kenneth K., Mar 21 '13 at 20:52
possible duplicate of [RegEx match open tags except XHTML self-contained tags](http://stackoverflow.com/questions/1732348/regex-match-open-tags-except-xhtml-self-contained-tags) — joce, Mar 22 '13 at 02:53

score 6 · Accepted Answer · answered Mar 21 '13 at 20:41

6

Regex is not great for parsing XML or HTML. Take a look at the HTML Agility Pack

HTML Agility Pack

answered Mar 21 '13 at 20:41

Kevin Anderson

589
4
17

1

A longer answer is not needed! – Dmitriy Khaykin Mar 21 '13 at 20:48

score 0 · Answer 2 · answered Oct 23 '18 at 08:54

0

remove all tag html but except tag td and tr

input = Regex.Replace(input, @"<(?!td|/td|tr|/tr).*?>", "");

answered Oct 23 '18 at 08:54

Huy

1

1

Use the code formatting feature for better readability. Explain what is the purpose of the code you mentioned in the context of your question. – Stephane Oct 23 '18 at 09:00

Remove All html tag except one tag

2 Answers2