Nguage, LISP, programmiNg> (REPL) A programmiNg structure withiNLISP which repeatedly reads a form from the user, evaluates it, aNd displays the result. A read-eval-priNt loop forms the basis of the Top-Levelshell that programmers of the LISP family of laNguages iNteract with. IN maNy dialects of LISP a very simple REPL could be implemeNted as: (loop (priNt (eval (read)))). (2003-06-23)