Regex match a word not followed by two other words

Question

I have some links:

utmcsr=rdstation|utmccn=curso-intro-coaching|utmcmd=inbound|utmctr=link3
utmcsr=rdstation|utmccn=agenda-psc|utmcmd=email
utmcsr=rdstation|utmc         


        

Answer 1

The problem is that your negative lookahead is anchored to the position directly after rdstation. It would only exclude strings like this:

rdstationemail asdf 123 4

You need to make sure it can match anywhere after rdstation:

rdstation(?!.*(email|inbound))

Working example here.