Indeed... as soon as I saw this, I skimmed the (smug towards Lispers!) MDL primer [0] and wrote a few (broken) esrap rules to parse some MDL into Lisp. For exa

Indeed... as soon as I saw this, I skimmed the (smug towards Lispers!) MDL primer [0] and wrote a few (broken) esrap rules to parse some MDL into Lisp. For example yours gives: DEMUDDLE> (parse 'expr *lispm-expr*) (DEFINE 'WAIT ("OPTIONAL" (NUM 3)) (TYPED DECL ((NUM) FIX)) (TELL "Time passes...") (REPEAT ((N (LVAR NUM))) (TYPED DECL ((N) FIX)) (COND ((OR (L? (SET 'N (- (LVAR N) 1)) 0) (CLOCK-DEMON (GVAR CLOCKER)) (FIGHTING (GVAR FIGHT-DEMON))) (RETURN))))) Someone more determined could write a small MDL->CL translator and produce a CL port of Zork (chock full of special declarations, since MDL uses dyamic scoping). I also found the following interesting remark in the primer: "One of the implementors of Zork has been heard to say that Zork is a huge conditional". [0] http://publications.csail.mit.edu/lcs/pubs/pdf/MIT-LCS-TR-292.pdf http://publications.csail.mit.edu/lcs/pubs/pdf/MIT-LCS-TR-29...