lispdoc - results for sublis

(sublis alist tree &key key (test #'eql testp) (test-not #'eql notp))

Function: Substitute from ALIST into TREE nondestructively.

Example:

(defun switch-viewpoint (words)
  "Change I to you and vice versa, and so on."
  (sublis
   '((i . you) (you . i) (me . you) (am . are))
   words))