Replace a href links via regula expressions with Notepad++

Sometimes it might be usefull to replace text via regular expressions. This can be done with Notepad++

For example you with to replace all <a href="http://..." links in a textfile with <a href="/index.html" then open Notepad++ (V6.1.*) and enter in the searchfield (without the ' characters):

'<a href="/([a-zA-Z][^"]*)"'

and in the replace field (without the ' characters):

'<a href="/index.html" '