Problem with regexp in HTTP class redirection

I'm following this solution http://support.f5.com/kb/en-us/solutions/public/7000/700/sol7771.html and I created a HTTP Class to redirect like this:

 

 

when URL matches:

 

(?i).*testxyz.*

 

 

redirect to:

 

http://[HTTP::host][string map { testxyz abc/123/mysrv } [HTTP::uri]]

 

 

the goal is to redirect http://myhost.com/testxyz/myres to http://myhost.com/abc/123/mysrv/myres

 

 

This actually works however I have a little annoyance: if a user types a URI like /testxyz/testxyz/testxyz/ the replace appens for each string.

 

 

I can use the slashes around the replace to make sure it's a component of the URI and not partial:

 

http://[HTTP::host][string map { /testxyz/ /abc/123/mysrv/ } [HTTP::uri]]

 

 

but this still doesn't solve my issue.

 

 

What would be the right TLC command / syntax to use in this situation?

 

 

Thanks in advance for your suggestions.