Stripping prefix with unlang

[Bernd]

Hi,

I am pulling my hears for two hours now. I'd like to strip a prefix off 
a request and I'm trying to use unlang in policy.d/filter to do that.

         if (User-Name =~ 
/adsl\-bla\/([^%%]+)%%adsl-bla.kroenchenstadt.de/) {
                 update request {
                 User-Name := "([^%%]+)%%adsl-sbt.kroenchenstadt.de/"
                 }
         }

doesn't work, as

         if (User-Name =~ /adsl\-bla\/ {
                 update request {
                 User-Name -= "adsl\-bla\/"
                 }
         }

also refuses to be that what I need.

I just need to strip ``adsl-bla/'' off the login request.

Help much appreciated — thanks!

Bernd