It still won't fire for me. It looks like it would work?

I'm a newbie to mudlet and have used zmud for many years. I'm trying to recreate my own status bars to track my hp/sp/ep variables. The prompt example is: HP: [352/352], SP: [137/421], EP: [327/385] I'd like to capture these numbers as the following variables - currenthp/maxhp, currentsp/maxsp, etc....