Cut <br/>-Tags from String end

Question

I am currently developing a Web-Application using Java EE where I'm using a Rich-Javascript-Editor (http://www.primefaces.org/showcase/ui/editor.jsf). As the user can easily add too many linebreaks that will be convertet to linebreak-tags, I need to remove all these Tags from the end of a String.

Is there an elegant way of using Regex to accomplish this?

An example String would be:

"This is a test <b>bold</b><br/><br/>" 

Where obviously the last two tags have to be removed.

Thank you in advance for any help

Best Regards, Robert

Answer 1

Something like this:

String s = "This is a test <b>bold</b><br/><br/>";
String s2 = s.replaceAll("(\\s*<[Bb][Rr]\\s*/?>)+\\s*$", "");
// s2 = "This is a test <b>bold</b>";

Note that it will also remove trailing whitespace; you can delete the final \\s* if you don't want that.

Answer 2

Here is a simple line of Java code to remove all instances of the substring "<br/>" from the end of a string myString:

myString = myString.replaceAll("(<br/>)+$", "");