lispdoc - results for subst-if

(subst-if new test tree &key key)
Function: Substitutes new for subtrees for which test is true.
 Mentioned in:
CLtL2 - 15.4. Substitution of Expressions
HyperSpec - Function SUBST, SUBST-IF, SUBST-IF-NOT, NSUBST, NSUBST-IF, NSUBST-IF-NOT
PCL - trees
(subst-if-not new test tree &key key)
Function: Substitutes new for subtrees for which test is false.
 Mentioned in:
CLtL2 - 15.4. Substitution of Expressions
HyperSpec - Function SUBST, SUBST-IF, SUBST-IF-NOT, NSUBST, NSUBST-IF, NSUBST-IF-NOT
PCL - trees