Java Regex or XML parser?

Question

I want to remove any tags such as

<p>hello <namespace:tag : a>hello</namespace:tag></p>

to become

 <p> hello hello </p>

What is the best way to do this if it is regex for some reason this is now working can anyone help?

(<|</)[:]{1,2}[^</>]>

edit: added

Answer 1

Definitely use an XML parser. Regex should not be used to parse *ML