Unlang and variables

[Ti Ti]

Hello,
I'm using unlang to discriminate the database to use as described in the
code below.
Is there a method to use variables so avoid the redundant check of NAS-Id?
Thanks


server rad {
   listen {
      ipaddr = *
      port = 1812
      type = auth
   }

   listen {
      ipaddr = *
      port = 1813
      type = acct
   }

   authorize {
      if (&NAS-Identifier =~ /test/i) {
        db1
      }
      if (&NAS-Identifier =~ /test2/i) {
        db2
      }
    }

   accounting {
      if (&NAS-Identifier =~ /test/i) {
        db1
      }
      if (&NAS-Identifier =~ /test2/i) {
        db2
      }
   }

   session {
      if (&NAS-Identifier =~ /test/i) {
        db1
      }
      if (&NAS-Identifier =~ /test2/i) {
        db2
      }
   }

}