Regex remove specific tag and its content from string

Question

I have a given string:

"Hi there <ss type="laugh">:)</ss>"

When I'm using

Regex.Replace(s, @"<(.|\n)*?>", string.Empty);

It returns me

"Hi there :)"

How can i modify the Expression to remove all "ss" tags and everything between them?

something like @"<ss(.|\n)*?ss>"?

wimh
– wimh

2015-10-23 22:50:06 +00:00
Commented Oct 23, 2015 at 22:50 — wimh
– wimh, Commented Oct 23, 2015 at 22:50

Wiktor Stribiżew · Accepted Answer · 2015-10-23 23:43:49Z

1

The string contains a regular XML tag, thus, you can make use of XElement.

This code will just keep the text of the outer element (text outside tags):

var s = "Hi there <ss type=\"laugh\">:)</ss>";
var el = XElement.Parse(string.Format("<root1>{0}</root1>", s));
var result = string.Concat(el.Nodes().OfType<XText>().Select(t => t.Value)).Trim();

Just make sure to use System.Xml.Linq namespace.

If you have other XML tags and you just want to remove ss tags:

var s = "<b>Hi</b> there <ss type=\"laugh\">:)</ss>";
var el = XElement.Parse(string.Format("<root1>{0}</root1>", s));
el.Descendants("ss").Remove();
var reader = el.CreateReader();
reader.MoveToContent();
var result2 = reader.ReadInnerXml().Trim();

Result:

edited Oct 23, 2015 at 23:43

answered Oct 23, 2015 at 23:32

Wiktor Stribiżew

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