BIG-IP Coffee iRule

gistfile1.txt

when HTTP_REQUEST {
 set coffee { 5)3;; 4(3;; 2+1-5+1;; 2|1 5|1]1;; 2\1-5/1;;_9_2;;\1_9/1}
 set response "Coffee 3.0\n\n"
 switch [HTTP::uri] {
  "/coffee" {
   foreach {mychar myrepeat} [ split $coffee {} ] {
    if {$mychar equals ";"} {
      append response "[format "%-15s" $cuppa]$cuppa\n"
      unset cuppa
    } else {
      append cuppa [string repeat $mychar $myrepeat]
    }
   }
   append response "\n\nYour coffee's are ready.\n\n"
   append response "The Virtual Coffee Machine"
   HTTP::respond 200 content $response Content-Type "text/plain" Connection Close
   event disable all 
  }
 }
}