cl-subst-if-not
cl-subst-if-not is an autoloaded compiled Lisp function in `cl-seq.el
'.
(cl-subst-if-not NEW PREDICATE TREE [KEYWORD VALUE]...)
Substitute NEW for elts not matching PREDICATE in TREE (non-destructively).
Return a copy of TREE with all non-matching elements replaced by NEW.
Keywords supported: :key