anchor.diff:  ;; TODO
   ;;
   ;; AutoLISP built-in.
  +
  +;; ### apply
  +;; (**apply** _fn_ _lst_): [ll-anyp]
  +;;
  +;; TODO
  +;;
  +;; AutoLISP built-in.
  +
  +;; ### load
  +;; (**load** _filename_ _onfailure_)
  +;;
  +;; TODO
  +;;
  +;; AutoLISP built-in.
  +
  +
  +;; ##
  +;; --
   
   ;; ### quote
   ;; (**quote** _expr_)
  
positive.code: ;;;
  ;; AutoLISP built-in.
  
  ;; ### apply
  ;; (**apply** _fn_ _lst_): [ll-anyp]
  ;;
  ;; TODO
  ;;
  ;; AutoLISP built-in.
  
  ;; ### defun
  ;; (**defun** ...): [ll-functionp]
  ;;
  
negative.code: ;; ------------
  
  ;; ### repeat
  ;; (**repeat** _n_: [ll-integerp] ...): [ll-anyp]
  ;;
  ;; TODO
  ;;
  