(FILECREATED " 2-Jul-86 18:30:39" {ERIS}<LISPCORE>LIBRARY>CMLLIST.;25 57821  

      changes to:  (VARS CMLLISTCOMS)
                   (FNS CL:APPEND)

      previous date: " 1-Jul-86 20:52:07" {ERIS}<LISPCORE>LIBRARY>CMLLIST.;23)


(* Copyright (c) 1985, 1986 by Xerox Corporation. All rights reserved.)

(PRETTYCOMPRINT CMLLISTCOMS)

(RPAQQ CMLLISTCOMS 
       ((* * CMLLIST. Common Lisp Lists Covers all of chapter 15 -- By Kelly Roach, Larry Masinter, 
           and Ron Fischer. *)
        (COMS (* Section 15.1 Conses. *)
              (* CAR, CDR, ..., CDDDDR (all functions on pages 262-263)
                 are OK. *)
              (* CONS is OK. *)
              (FNS TREE-EQUAL %%TREE-EQUAL-TEST %%TREE-EQUAL-TEST-NOT))
        (COMS (* Section 15.2 Lists. *)
              (FNS ENDP LIST-LENGTH)
              (COMS (FNS CL:NTH %%SETNTH)
                    (PROP SETFN CL:NTH))
              (COMS (FNS CL:FIRST SECOND THIRD FOURTH FIFTH SIXTH SEVENTH EIGHTH NINTH TENTH REST)
                    (* Macros to make SETF work and code optimize *)
                    (MACROS CL:FIRST SECOND THIRD FOURTH FIFTH SIXTH SEVENTH EIGHTH NINTH TENTH REST)
                    )
              (FNS NTHCDR)
              (* LAST LIST LIST* are OK. *)
              (FNS MAKE-LIST)
              (* Common Lisp APPEND is different from Interlisp APPEND because Interlisp APPEND 
                 copies its last arg while Common Lisp APPEND does not. See page 268 of the silver 
                 book. *)
              (FNS CL:APPEND)
              (FNS COPY-LIST COPY-ALIST COPY-TREE REVAPPEND)
              (* NCONC is OK. *)
              (FNS NRECONC)
              (* CL:PUSH and CL:PUSHNEW are macros defined somewhere else. Don't know where that is. 
                 POP is OK. *)
              (FNS BUTLAST NBUTLAST CL:LDIFF))
        (COMS (* Section 15.3 Alteration of List Structure. *)
              (* RPLACA RPLACD are OK. *))
        (COMS (* Section 15.4 Substitution of Expressions. *)
              (DECLARE: DONTCOPY DOEVAL@COMPILE (FUNCTIONS SPLICE TEST-KEYS-SUPPLIED))
              (FNS %%TEST)
              (FNS CL:SUBST %%SUBST SUBST-IF %%SUBST-IF SUBST-IF-NOT %%SUBST-IF-NOT NSUBST %%NSUBST 
                   NSUBST-IF %%NSUBST-IF NSUBST-IF-NOT %%NSUBST-IF-NOT)
              (FNS CL:SUBLIS %%SUBLIS NSUBLIS %%NSUBLIS))
        (COMS (* Section 15.5 Usng Lists as Sets. *)
              (DECLARE: DONTCOPY DOEVAL@COMPILE (FUNCTIONS SPLICE))
              (FNS CL:MEMBER %%MEMBER MEMBER-IF MEMBER-IF-NOT)
              (PROP DMACRO CL:MEMBER)
              (* TAILP is OK. *)
              (FNS ADJOIN)
              (FNS CL:UNION NUNION)
              (FNS CL:INTERSECTION NINTERSECTION)
              (FNS SET-DIFFERENCE NSET-DIFFERENCE)
              (FNS SET-EXCLUSIVE-OR NSET-EXCLUSIVE-OR)
              (FNS SUBSETP))
        (COMS (* Section 15.6 Association Lists. *)
              (FNS ACONS PAIRLIS)
              (FNS CL:ASSOC %%ASSOC ASSOC-IF ASSOC-IF-NOT RASSOC RASSOC-IF RASSOC-IF-NOT))
        (COMS (* Section 7.8.4 Mapping *)
              (FNS CL:MAPCAR CL:MAPLIST CL:MAPC MAPL MAPCAN CL:MAPCON %%MAP))
        (COMS (* Stuff I'm not sure where to place yet. *)
              (* It seems that DELQ ASSQ MEMQ aren't part of Common Lisp but part of Spice Lisp. What 
                 functions in the system are currently depending on these functions? *)
              (FNS DELQ)
              (* CL:EVERY should be in CMLSEQ. *)
              (PROP DMACRO CL:EVERY)
              (P (MOVD (QUOTE ASSOC)
                       (QUOTE ASSQ))
                 (MOVD (QUOTE FMEMB)
                       (QUOTE MEMQ))
                 (* NREVERSE should be in CMLSEQ. *)
                 (MOVD (QUOTE DREVERSE)
                       (QUOTE NREVERSE))))
        (DECLARE: DONTEVAL@LOAD DOEVAL@COMPILE DONTCOPY COMPILERVARS
               (ADDVARS (NLAMA)
                      (NLAML)
                      (LAMA DELQ CL:MAPCON MAPCAN MAPL CL:MAPC CL:MAPLIST CL:MAPCAR RASSOC CL:ASSOC 
                            PAIRLIS SUBSETP NSET-EXCLUSIVE-OR SET-EXCLUSIVE-OR NSET-DIFFERENCE 
                            SET-DIFFERENCE NINTERSECTION NUNION ADJOIN MEMBER-IF-NOT MEMBER-IF 
                            CL:MEMBER NSUBLIS NSUBST-IF-NOT NSUBST-IF NSUBST SUBST-IF-NOT SUBST-IF 
                            CL:SUBST NBUTLAST BUTLAST MAKE-LIST TREE-EQUAL CL:INTERSECTION CL:UNION 
                            CL:SUBLIS %%TREE-EQUAL-TEST-NOT %%TREE-EQUAL-TEST)))))
(* * CMLLIST. Common Lisp Lists Covers all of chapter 15 -- By Kelly Roach, Larry Masinter, and
 Ron Fischer. *)




(* Section 15.1 Conses. *)




(* CAR, CDR, ..., CDDDDR (all functions on pages 262-263) are OK. *)




(* CONS is OK. *)

(DEFINEQ

(TREE-EQUAL
  (CL:LAMBDA (X Y &KEY (TEST (FUNCTION EQL))
                TEST-NOT)                                    (* kbr: " 4-Jun-86 23:32")
                                                             (* Returns T if X and Y are isomorphic 
                                                             trees with identical leaves.
                                                             *)
         (COND
            (TEST-NOT (%%TREE-EQUAL-TEST-NOT X Y TEST-NOT))
            (T (%%TREE-EQUAL-TEST X Y TEST)))))

(%%TREE-EQUAL-TEST
  (CL:LAMBDA (X Y TEST)                                      (* kbr: " 1-Jul-86 20:47")
         (COND
            ((CONSP X)
             (AND (CONSP Y)
                  (%%TREE-EQUAL-TEST (CAR X)
                         (CAR Y)
                         TEST)
                  (%%TREE-EQUAL-TEST (CDR X)
                         (CDR Y)
                         TEST)))
            ((CONSP Y)
             NIL)
            (T (FUNCALL TEST X Y)))))

(%%TREE-EQUAL-TEST-NOT
  (CL:LAMBDA (X Y TEST-NOT)                                  (* kbr: " 1-Jul-86 20:47")
         (COND
            ((CONSP X)
             (AND (CONSP Y)
                  (%%TREE-EQUAL-TEST-NOT (CAR X)
                         (CAR Y)
                         TEST-NOT)
                  (%%TREE-EQUAL-TEST-NOT (CDR X)
                         (CDR Y)
                         TEST-NOT)))
            ((CONSP Y)
             NIL)
            (T (NOT (FUNCALL TEST-NOT X Y))))))
)



(* Section 15.2 Lists. *)

(DEFINEQ

(ENDP
  (LAMBDA (OBJECT)                                           (* raf "29-Jan-86 17:46")
    (COND
       ((NULL OBJECT)
        T)
       ((CL:LISTP OBJECT)
        NIL)
       (T (ERROR "Arg not list" OBJECT)))))

(LIST-LENGTH
  (CL:LAMBDA (LIST)                                          (* kbr: "24-Jun-86 23:09")
                                                             (* Returns the length of the given 
                                                             LIST or NIL if the LIST is circular.
                                                             *)
         (CL:DO ((N 0 (+ N 2))
                 (Y LIST (CDDR Y))
                 (Z LIST (CDR Z)))
                (NIL)
                (COND
                   ((ENDP Y)
                    (RETURN N)))
                (COND
                   ((ENDP (CDR Y))
                    (RETURN (+ N 1))))
                (COND
                   ((AND (EQ Y Z)
                         (> N 0))
                    (RETURN NIL))))))
)
(DEFINEQ

(CL:NTH
  (CL:LAMBDA (N LIST)                                        (* kbr: "25-Jun-86 23:03")
         (CAR (NTHCDR N LIST))))

(%%SETNTH
  (CL:LAMBDA (N LIST NEWVAL)                                 (* kbr: " 4-Jun-86 23:35")
         (DECLARE (TYPE FIXNUM N))                           (* Sets the Nth element of LIST
                                                             (zero based) to NEWVAL *)
         (COND
            ((< N 0)
             (CL:ERROR "~S is an illegal N for SETF of NTH." N))
            (T (CL:DO ((COUNT N (1- COUNT)))
                      ((ZEROP COUNT)
                       (RPLACA LIST NEWVAL)
                       NEWVAL)
                      (DECLARE (TYPE FIXNUM COUNT))
                      (COND
                         ((ENDP (CDR LIST))
                          (CL:ERROR "~S is too large an index for SETF of NTH." N))
                         (T (SETQ LIST (CDR LIST)))))))))
)

(PUTPROPS CL:NTH SETFN %%SETNTH)
(DEFINEQ

(CL:FIRST
  (CL:LAMBDA (LIST)                                          (* lmm "20-Jan-86 20:58")
         (CAR LIST)))

(SECOND
  (CL:LAMBDA (LIST)                                          (* lmm "20-Jan-86 20:58")
         (CADR LIST)))

(THIRD
  (CL:LAMBDA (LIST)
         (CADDR LIST)))

(FOURTH
  (CL:LAMBDA (LIST)
         (CADDDR LIST)))

(FIFTH
  (CL:LAMBDA (LIST)
         (CAR (CDDDDR LIST))))

(SIXTH
  (CL:LAMBDA (LIST)
         (CADR (CDDDDR LIST))))

(SEVENTH
  (CL:LAMBDA (LIST)
         (CADDR (CDDDDR LIST))))

(EIGHTH
  (CL:LAMBDA (LIST)
         (CADDDR (CDDDDR LIST))))

(NINTH
  (CL:LAMBDA (LIST)
         (CAR (CDDDDR (CDDDDR LIST)))))

(TENTH
  (CL:LAMBDA (LIST)
         (CADR (CDDDDR (CDDDDR LIST)))))

(REST
  (CL:LAMBDA (LIST)
         (CDR LIST)))
)



(* Macros to make SETF work and code optimize *)

(DECLARE: EVAL@COMPILE 

(PUTPROPS CL:FIRST DMACRO (= . CAR))
(PUTPROPS SECOND DMACRO (= . CADR))
(PUTPROPS THIRD DMACRO ((LIST)
                        (CADDR LIST)))
(PUTPROPS FOURTH DMACRO ((LIST)
                         (CADDDR LIST)))
(PUTPROPS FIFTH DMACRO ((LIST)
                        (CAR (CDDDDR LIST))))
(PUTPROPS SIXTH DMACRO ((LIST)
                        (CADR (CDDDDR LIST))))
(PUTPROPS SEVENTH DMACRO ((LIST)
                          (CADDR (CDDDDR LIST))))
(PUTPROPS EIGHTH DMACRO ((LIST)
                         (CADDDR (CDDDDR LIST))))
(PUTPROPS NINTH DMACRO ((LIST)
                        (CAR (CDDDDR (CDDDDR LIST)))))
(PUTPROPS TENTH DMACRO ((LIST)
                        (CADR (CDDDDR (CDDDDR LIST)))))
(PUTPROPS REST DMACRO ((LIST)
                       (CDR LIST)))
)
(DEFINEQ

(NTHCDR
  (CL:LAMBDA (N LIST)                                        (* kbr: "25-Jun-86 23:05")
         (CL:IF (NOT (AND (INTEGERP N)
                          (>= N 0)))
                (CL:ERROR "N = ~S is illegal for NTHCDR." N)
                (PROG NIL
                  LP  (COND
                         ((= N 0)
                          (RETURN LIST))
                         ((ENDP LIST)
                          (RETURN NIL)))
                      (SETQ LIST (CDR LIST))
                      (SETQ N (1- N))
                      (GO LP)))))
)



(* LAST LIST LIST* are OK. *)

(DEFINEQ

(MAKE-LIST
  (CL:LAMBDA (SIZE &KEY INITIAL-ELEMENT)
         (DECLARE (TYPE FIXNUM SIZE))                        (* raf " 5-Dec-85 04:32")
         (COND
            ((< SIZE 0)
             (CL:ERROR "~S is an illegal size for MAKE-LIST." SIZE))
            (T (CL:DO ((COUNT SIZE (1- COUNT))
                       (RESULT (QUOTE NIL)
                              (CONS INITIAL-ELEMENT RESULT)))
                      ((ZEROP COUNT)
                       RESULT)
                      (DECLARE (TYPE FIXNUM COUNT)))))))
)



(* Common Lisp APPEND is different from Interlisp APPEND because Interlisp APPEND copies its 
last arg while Common Lisp APPEND does not. See page 268 of the silver book. *)

(DEFINEQ

(CL:APPEND
  (LAMBDA L                                                  (* kbr: " 2-Jul-86 18:28")
    (COND
       ((EQ L 0)
        NIL)
       ((EQ L 1)
        (ARG L 1))
       (T (bind (VAL ← (ARG L L))
                (N ← L) while (IGREATERP (add N -1)
                                     0) do (SETQ VAL (\APPEND2 (ARG L N)
                                                            VAL)) finally (RETURN VAL))))))
)
(DEFINEQ

(COPY-LIST
  (LAMBDA (L)                                                (* lmm " 6-May-86 23:02")
    (COND
       ((LISTP L)
        (PROG ((VAL (CONS (CAR L)
                          NIL))
               TAIL)
              (SETQ TAIL VAL)
          LP  (RPLACD TAIL (SETQ TAIL (LIST (CAR (OR (LISTP (SETQ L (CDR L)))
                                                     (PROGN (AND L (RPLACD TAIL L))
                                                            (RETURN VAL)))))))
              (GO LP)))
       (T L))))

(COPY-ALIST
  (CL:LAMBDA (ALIST)                                         (* kbr: " 4-Jun-86 23:33")
         (COND
            ((CL:ATOM ALIST)
             (COND
                (ALIST (CL:ERROR "~S is not a list." ALIST))
                (T NIL)))
            (T (LET ((RESULT (CONS (COND
                                      ((CL:ATOM (CAR ALIST))
                                       (CAR ALIST))
                                      (T (CONS (CAAR ALIST)
                                               (CDAR ALIST))))
                                   (QUOTE NIL))))
                    (CL:DO ((X (CDR ALIST)
                               (CDR X))
                            (SPLICE RESULT (CDR (RPLACD SPLICE (CONS (COND
                                                                        ((CL:ATOM (CAR X))
                                                                         (CAR X))
                                                                        (T (CONS (CAAR X)
                                                                                 (CDAR X))))
                                                                     (QUOTE NIL))))))
                           ((CL:ATOM X)                      (* Non-null terminated alist done 
                                                             here. *)
                            (COND
                               ((NOT (NULL X))
                                (RPLACD SPLICE X)))
                            RESULT)))))))

(COPY-TREE
  (CL:LAMBDA (OBJECT)                                        (* kbr: " 4-Jun-86 23:34")
                                                             (* COPY-TREE recursively copys trees 
                                                             of conses. *)
         (COND
            ((NOT (CONSP OBJECT))
             OBJECT)
            (T (CONS (COPY-TREE (CAR OBJECT))
                     (COPY-TREE (CDR OBJECT)))))))

(REVAPPEND
  (CL:LAMBDA (X Y)                                           (* kbr: " 4-Jun-86 23:34")
                                                             (* Returns (APPEND (REVERSE X) Y) *)
         (CL:DO ((TOP X (CDR TOP))
                 (RESULT Y (CONS (CAR TOP)
                                 RESULT)))
                ((ENDP TOP)
                 RESULT))))
)



(* NCONC is OK. *)

(DEFINEQ

(NRECONC
  (CL:LAMBDA (X Y)                                           (* kbr: "31-Aug-85 15:19")
         (NCONC (NREVERSE X)
                Y)))
)



(* CL:PUSH and CL:PUSHNEW are macros defined somewhere else. Don't know where that is. POP is 
OK. *)

(DEFINEQ

(BUTLAST
  (CL:LAMBDA (LIST &OPTIONAL (N 1))
         (DECLARE (TYPE FIXNUM N))                           (* raf " 5-Dec-85 04:33")
         (COND
            ((< N 0)
             (SETQ N 0))
            (T NIL))
         (LET ((LENGTH (1- (LENGTH (THE LIST LIST)))))
              (DECLARE (TYPE FIXNUM LENGTH))
              (COND
                 ((< LENGTH N)
                  NIL)
                 (T (CL:DO* ((TOP (CDR LIST)
                                  (CDR TOP))
                             (RESULT (LIST (CAR LIST)))
                             (SPLICE RESULT)
                             (COUNT LENGTH (1- COUNT)))
                           ((= COUNT N)
                            RESULT)
                           (SETQ SPLICE (CDR (RPLACD SPLICE (LIST (CAR TOP)))))))))))

(NBUTLAST
  (CL:LAMBDA (LIST &OPTIONAL (N 1))
         (DECLARE (TYPE FIXNUM N))                           (* raf " 5-Dec-85 04:33")
         (COND
            ((< N 0)
             (SETQ N 0))
            (T NIL))
         (LET ((LENGTH (1- (LENGTH (THE LIST LIST)))))
              (DECLARE (TYPE FIXNUM LENGTH))
              (COND
                 ((< LENGTH N)
                  NIL)
                 (T (CL:DO ((1ST (CDR LIST)
                                 (CDR 1ST))
                            (2ND LIST 1ST)
                            (COUNT LENGTH (1- COUNT)))
                           ((= COUNT N)
                            (RPLACD 2ND NIL)
                            LIST)))))))

(CL:LDIFF
  (CL:LAMBDA (LIST SUBLIST)                                  (* raf " 5-Dec-85 04:36")
         (CL:DO* ((LIST LIST (CDR LIST))
                  (RESULT (LIST NIL))
                  (SPLICE RESULT))
                ((OR (NULL LIST)
                     (EQ LIST SUBLIST))
                 (CDR RESULT))
                (SETQ SPLICE (CDR (RPLACD SPLICE (LIST (CAR LIST))))))))
)



(* Section 15.3 Alteration of List Structure. *)




(* RPLACA RPLACD are OK. *)




(* Section 15.4 Substitution of Expressions. *)

(DECLARE: DONTCOPY DOEVAL@COMPILE 
(DEFMACRO SPLICE (SOURCE DESTINATION) (BQUOTE (LET ((TEMP (\, SOURCE)))
                                                   (SETF (\, SOURCE)
                                                         (CDR (\, SOURCE))
                                                         (CDR TEMP)
                                                         (\, DESTINATION)
                                                         (\, DESTINATION)
                                                         TEMP))))

(DEFMACRO TEST-KEYS-SUPPLIED NIL (QUOTE (PROGN (COND ((AND TEST TEST-NOT)
                                                      (CL:ERROR "Both TEST and TEST-NOT supplied."))
                                                     ((AND (NULL TEST)
                                                           (NULL TEST-NOT))
                                                      (SETQ TEST (FUNCTION EQL))))
                                               (COND ((NULL KEY)
                                                      (SETQ KEY (FUNCTION IDENTITY)))))))

)
(DEFINEQ

(%%TEST
  (CL:LAMBDA (ITEM KEYITEM TEST TEST-NOT KEY)                (* kbr: "28-Jun-86 22:11")
         (COND
            (TEST (FUNCALL TEST ITEM (FUNCALL KEY KEYITEM)))
            (TEST-NOT (NOT (FUNCALL TEST-NOT ITEM (FUNCALL KEY KEYITEM))))
            (T (SHOULDNT)))))
)
(DEFINEQ

(CL:SUBST
  (CL:LAMBDA (NEW OLD TREE &KEY TEST TEST-NOT KEY)           (* kbr: "28-Jun-86 21:34")
                                                             (* Make copy of TREE substituting NEW 
                                                             for every subtree such that OLD and 
                                                             the subtree satisfy TEST *)
         (TEST-KEYS-SUPPLIED)
         (%%SUBST NEW OLD TREE TEST TEST-NOT KEY)))

(%%SUBST
  (CL:LAMBDA (NEW OLD TREE TEST TEST-NOT KEY)                (* kbr: "28-Jun-86 21:50")
                                                             (* Make copy of TREE substituting NEW 
                                                             for every subtree such that OLD and 
                                                             the subtree satisfy TEST
                                                             (usually EQL) *)
         (COND
            ((%%TEST OLD TREE TEST TEST-NOT KEY)
             NEW)
            ((CL:ATOM TREE)
             TREE)
            (T (LET ((CAR (%%SUBST NEW OLD (CAR TREE)
                                 TEST TEST-NOT KEY))
                     (CDR (%%SUBST NEW OLD (CDR TREE)
                                 TEST TEST-NOT KEY)))
                    (COND
                       ((AND (EQ CAR (CAR TREE))
                             (EQ CDR (CDR TREE)))
                        TREE)
                       (T (CONS CAR CDR))))))))

(SUBST-IF
  (CL:LAMBDA (NEW TEST TREE &KEY (KEY (FUNCTION IDENTITY)))  (* kbr: "25-Jun-86 15:33")
                                                             (* Substitutes new for subtrees for 
                                                             which test is true. *)
         (%%SUBST-IF NEW TEST TREE KEY)))

(%%SUBST-IF
  (CL:LAMBDA (NEW TEST TREE KEY)                             (* kbr: "25-Jun-86 16:18")
                                                             (* Substitutes new for subtrees for 
                                                             which test is true. *)
         (COND
            ((FUNCALL TEST (FUNCALL KEY TREE))
             NEW)
            ((CL:ATOM TREE)
             TREE)
            (T (LET ((CAR (%%SUBST-IF NEW TEST (CAR TREE)
                                 KEY))
                     (CDR (%%SUBST-IF NEW TEST (CDR TREE)
                                 KEY)))
                    (COND
                       ((AND (EQ CAR (CAR TREE))
                             (EQ CDR (CDR TREE)))
                        TREE)
                       (T (CONS CAR CDR))))))))

(SUBST-IF-NOT
  (CL:LAMBDA (NEW TEST TREE &KEY (KEY (FUNCTION IDENTITY)))  (* kbr: "25-Jun-86 15:51")
                                                             (* Substitutes new for subtrees for 
                                                             which test is false.
                                                             *)
         (%%SUBST-IF-NOT NEW TEST TREE KEY)))

(%%SUBST-IF-NOT
  (CL:LAMBDA (NEW TEST TREE KEY)                             (* kbr: "25-Jun-86 16:19")
                                                             (* Substitutes new for subtrees for 
                                                             which test is false.
                                                             *)
         (COND
            ((NOT (FUNCALL TEST (FUNCALL KEY TREE)))
             NEW)
            ((CL:ATOM TREE)
             TREE)
            (T (LET ((CAR (%%SUBST-IF-NOT NEW TEST (CAR TREE)
                                 KEY))
                     (CDR (%%SUBST-IF-NOT NEW TEST (CDR TREE)
                                 KEY)))
                    (COND
                       ((AND (EQ CAR (CAR TREE))
                             (EQ CDR (CDR TREE)))
                        TREE)
                       (T (CONS CAR CDR))))))))

(NSUBST
  (CL:LAMBDA (NEW OLD TREE &KEY TEST TEST-NOT KEY)           (* kbr: "28-Jun-86 21:38")
         (TEST-KEYS-SUPPLIED)
         (%%NSUBST NEW OLD TREE TEST TEST-NOT KEY)))

(%%NSUBST
  (CL:LAMBDA (NEW OLD TREE TEST TEST-NOT KEY)                (* kbr: "28-Jun-86 21:51")
                                                             (* Conditionally destructively 
                                                             substitute NEW for OLD in TREE *)
         (PROG (TAIL)
               (COND
                  ((%%TEST OLD TREE TEST TEST-NOT KEY)
                   (RETURN NEW)))
               (SETQ TAIL TREE)
           LOOP
               (COND
                  ((CL:ATOM TAIL)
                   (RETURN TREE))
                  ((%%TEST OLD (CAR TAIL)
                          TEST TEST-NOT KEY)
                   (SETF (CAR TAIL)
                         NEW))
                  (T (%%NSUBST NEW OLD (CAR TAIL)
                            TEST TEST-NOT KEY)))
               (SETQ TAIL (CDR TAIL))
               (GO LOOP))))

(NSUBST-IF
  (CL:LAMBDA (NEW TEST TREE &KEY (KEY (FUNCTION IDENTITY)))  (* kbr: "25-Jun-86 15:54")
         (%%NSUBST-IF NEW TEST TREE KEY)))

(%%NSUBST-IF
  (CL:LAMBDA (NEW TEST TREE KEY)                             (* kbr: "25-Jun-86 16:20")
         (COND
            ((FUNCALL TEST (FUNCALL KEY TREE))
             NEW)
            ((CL:ATOM TREE)
             TREE)
            (T (CL:DO* ((LAST NIL TREE)
                        (TREE TREE (CDR TREE)))
                      ((CL:ATOM TREE)
                       (COND
                          ((FUNCALL TEST (FUNCALL KEY TREE))
                           (SETF (CDR LAST)
                                 NEW))
                          (T NIL)))
                      (COND
                         ((FUNCALL TEST (FUNCALL KEY TREE))
                          (RETURN (SETF (CDR LAST)
                                        NEW)))
                         (T (SETF (CAR TREE)
                                  (%%NSUBST-IF NEW TEST (CAR TREE)
                                         KEY)))))
               TREE))))

(NSUBST-IF-NOT
  (CL:LAMBDA (NEW TEST TREE &KEY (KEY (FUNCTION IDENTITY)))  (* kbr: "25-Jun-86 15:55")
         (%%NSUBST-IF-NOT NEW TEST TREE KEY)))

(%%NSUBST-IF-NOT
  (CL:LAMBDA (NEW TEST TREE KEY)                             (* kbr: "25-Jun-86 16:21")
         (COND
            ((NOT (FUNCALL TEST (FUNCALL KEY TREE)))
             NEW)
            ((CL:ATOM TREE)
             TREE)
            (T (CL:DO* ((LAST NIL TREE)
                        (TREE TREE (CDR TREE)))
                      ((CL:ATOM TREE)
                       (COND
                          ((NOT (FUNCALL TEST (FUNCALL KEY TREE)))
                           (SETF (CDR LAST)
                                 NEW))
                          (T NIL)))
                      (COND
                         ((NOT (FUNCALL TEST (FUNCALL KEY TREE)))
                          (RETURN (SETF (CDR LAST)
                                        NEW)))
                         (T (SETF (CAR TREE)
                                  (%%NSUBST-IF-NOT NEW TEST (CAR TREE)
                                         KEY)))))
               TREE))))
)
(DEFINEQ

(CL:SUBLIS
  (CL:LAMBDA (ALIST TREE &KEY TEST TEST-NOT KEY)             (* kbr: "28-Jun-86 21:39")
                                                             (* Substitutes from ALIST into TREE 
                                                             nondestructively. *)
         (TEST-KEYS-SUPPLIED)
         (%%SUBLIS ALIST TREE TEST TEST-NOT KEY)))

(%%SUBLIS
  (CL:LAMBDA (ALIST TREE TEST TEST-NOT KEY)                  (* kbr: "28-Jun-86 21:51")
                                                             (* Substitutes from alist into tree 
                                                             nondestructively. *)
         (LET ((BUCKET (%%ASSOC TREE ALIST TEST TEST-NOT KEY)))
              (COND
                 (BUCKET (CDR BUCKET))
                 ((CL:ATOM TREE)
                  TREE)
                 (T (LET ((CAR (%%SUBLIS ALIST (CAR TREE)
                                      TEST TEST-NOT KEY))
                          (CDR (%%SUBLIS ALIST (CDR TREE)
                                      TEST TEST-NOT KEY)))
                         (CL:IF (AND (EQ CAR (CAR TREE))
                                     (EQ CDR (CDR TREE)))
                                TREE
                                (CONS CAR CDR))))))))

(NSUBLIS
  (CL:LAMBDA (ALIST TREE &KEY KEY TEST TEST-NOT)             (* kbr: "28-Jun-86 21:39")
         (TEST-KEYS-SUPPLIED)
         (%%NSUBLIS ALIST TREE TEST TEST-NOT KEY)))

(%%NSUBLIS
  (CL:LAMBDA (ALIST TREE TEST TEST-NOT KEY)                  (* kbr: "28-Jun-86 21:52")
         (PROG (BUCKET)
               (COND
                  ((SETQ BUCKET (%%ASSOC TREE ALIST TEST TEST-NOT KEY))
                   (RETURN (CDR BUCKET)))
                  ((CL:ATOM TREE)
                   (RETURN TREE)))
               (CL:DO* ((LAST NIL TREE)
                        (TREE TREE (CDR TREE)))
                      ((CL:ATOM TREE)
                       (COND
                          ((SETQ BUCKET (%%ASSOC TREE ALIST TEST TEST-NOT KEY))
                           (SETF (CDR LAST)
                                 (CDR BUCKET)))
                          (T NIL)))
                      (COND
                         ((SETQ BUCKET (%%ASSOC TREE ALIST TEST TEST-NOT KEY))
                          (RETURN (SETF (CDR LAST)
                                        (CDR BUCKET))))
                         (T (SETF (CAR TREE)
                                  (%%NSUBLIS ALIST (CAR TREE)
                                         TEST TEST-NOT KEY)))))
               (RETURN TREE))))
)



(* Section 15.5 Usng Lists as Sets. *)

(DECLARE: DONTCOPY DOEVAL@COMPILE 
(DEFMACRO SPLICE (SOURCE DESTINATION) (BQUOTE (LET ((TEMP (\, SOURCE)))
                                                   (SETF (\, SOURCE)
                                                         (CDR (\, SOURCE))
                                                         (CDR TEMP)
                                                         (\, DESTINATION)
                                                         (\, DESTINATION)
                                                         TEMP))))

)
(DEFINEQ

(CL:MEMBER
  (CL:LAMBDA (ITEM LIST &KEY TEST TEST-NOT KEY)              (* kbr: "28-Jun-86 21:40")
         (TEST-KEYS-SUPPLIED)
         (for TAIL on LIST when (%%TEST ITEM (CAR TAIL)
                                       TEST TEST-NOT KEY) do (RETURN TAIL))))

(%%MEMBER
  (CL:LAMBDA (ITEM LIST TEST TEST-NOT KEY)                   (* kbr: "28-Jun-86 21:52")
         (for TAIL on LIST when (%%TEST ITEM (CAR TAIL)
                                       TEST TEST-NOT KEY) do (RETURN TAIL))))

(MEMBER-IF
  (CL:LAMBDA (TEST LIST &KEY (KEY (FUNCTION IDENTITY)))      (* raf "29-Jan-86 17:36")
         (COND
            ((NOT (CL:LISTP LIST))
             (CL:ERROR "~S is not a list." LIST)))
         (CL:DO ((LIST LIST (CDR LIST)))
                ((ENDP LIST)
                 NIL)
                (COND
                   ((FUNCALL TEST (FUNCALL KEY (CAR LIST)))
                    (RETURN LIST))
                   (T NIL)))))

(MEMBER-IF-NOT
  (CL:LAMBDA (TEST LIST &KEY (KEY (FUNCTION IDENTITY)))      (* raf "29-Jan-86 17:37")
         (COND
            ((NOT (CL:LISTP LIST))
             (CL:ERROR "~S is not a list." LIST)))
         (CL:DO ((LIST LIST (CDR LIST)))
                ((ENDP LIST)
                 NIL)
                (COND
                   ((NOT (FUNCALL TEST (FUNCALL KEY (CAR LIST))))
                    (RETURN LIST))
                   (T NIL)))))
)

(PUTPROPS CL:MEMBER DMACRO 
          (DEFMACRO (ITEM LIST &KEY (TEST (QUOTE (FUNCTION EQL))
                                          TESTSUPPLIED)
                               (TEST-NOT NIL TESTNOTSUPPLIED)
                               (KEY (QUOTE (FUNCTION IDENTITY)))) (* optimize simple cases)
             (LET ((TESTC (CONSTANTEXPRESSIONP TEST))
                   (KEYC (CONSTANTEXPRESSIONP KEY))
                   (TESTNOTC (CONSTANTEXPRESSIONP TEST-NOT))
                   (LISTC (CONSTANTEXPRESSIONP LIST)))
                  (COND
                     ((AND LISTC KEYC (EQ (CAR TESTC)
                                          (QUOTE EQL))
                           (EVERY (CAR LISTC)
                                  (FUNCTION (LAMBDA (X)
                                              (NOT (NUMBERP (APPLY* (CAR KEYC)
                                                                   X)))))))
                      (SETQ TESTC (QUOTE (EQ)))))
                  (COND
                     ((AND TESTC KEYC TESTNOTC)
                      (if (AND (EQ (CAR TESTC)
                                   (QUOTE EQ))
                               (EQ (CAR KEYC)
                                   (QUOTE IDENTITY))
                               (NOT TESTNOTSUPPLIED))
                          then (LIST (QUOTE FMEMB)
                                     ITEM LIST)
                        else (LET ((ITERVAR (GENSYM "MEMBER"))
                                   (ITEMVAR (GENSYM "MEMBER-ITEM")))
                                  (BQUOTE (LET ((, ITEMVAR , ITEM))
                                               (for , ITERVAR
                                                  on , LIST , (if TESTNOTSUPPLIED
                                                                  then (QUOTE unless)
                                                                else (QUOTE when))
                                                     (, (if TESTNOTSUPPLIED
                                                            then (CAR TESTNOTC)
                                                          else (CAR TESTC))
                                                        (, (CAR KEYC)
                                                           (CAR , ITERVAR))
                                                        , ITEMVAR) do (RETURN , ITERVAR)))))))
                     (T (QUOTE IGNOREMACRO)))))
)



(* TAILP is OK. *)

(DEFINEQ

(ADJOIN
  (CL:LAMBDA (ITEM LIST &KEY TEST TEST-NOT KEY)              (* kbr: "28-Jun-86 21:52")
                                                             (* Add ITEM to LIST unless it is 
                                                             already a member *)
         (TEST-KEYS-SUPPLIED)
         (COND
            ((%%MEMBER ITEM LIST TEST TEST-NOT KEY)
             LIST)
            (T (CONS ITEM LIST)))))
)
(DEFINEQ

(CL:UNION
  (CL:LAMBDA (LIST1 LIST2 &KEY TEST TEST-NOT KEY)            (* kbr: "28-Jun-86 21:41")
                                                             (* Returns the union of LIST1 and 
                                                             LIST2 *)
         (TEST-KEYS-SUPPLIED)
         (LET ((RES LIST1))
              (DOLIST (CL:ELT LIST2)
                     (CL:IF (NOT (%%MEMBER CL:ELT LIST1 TEST TEST-NOT KEY))
                            (CL:PUSH CL:ELT RES)))
              RES)))

(NUNION
  (CL:LAMBDA (LIST1 LIST2 &KEY TEST TEST-NOT KEY)            (* kbr: "28-Jun-86 21:42")
         (TEST-KEYS-SUPPLIED)
         (LET ((RES LIST1))
              (CL:DO NIL ((ENDP LIST2))
                     (COND
                        ((NOT (%%MEMBER (CAR LIST2)
                                     LIST1 TEST TEST-NOT KEY))
                         (SPLICE LIST2 RES))
                        (T (SETQ LIST2 (CDR LIST2)))))
              RES)))
)
(DEFINEQ

(CL:INTERSECTION
  (CL:LAMBDA (LIST1 LIST2 &KEY TEST TEST-NOT KEY)            (* kbr: "28-Jun-86 21:42")
                                                             (* Returns the intersection of LIST1 
                                                             and LIST2 *)
         (TEST-KEYS-SUPPLIED)
         (LET ((RES NIL))
              (DOLIST (CL:ELT LIST1)
                     (CL:IF (%%MEMBER CL:ELT LIST2 TEST TEST-NOT KEY)
                            (CL:PUSH CL:ELT RES)))
              RES)))

(NINTERSECTION
  (CL:LAMBDA (LIST1 LIST2 &KEY TEST TEST-NOT KEY)            (* kbr: "28-Jun-86 21:42")
         (TEST-KEYS-SUPPLIED)
         (LET ((RES NIL))
              (CL:DO NIL ((ENDP LIST1))
                     (COND
                        ((%%MEMBER (CAR LIST1)
                                LIST2 TEST TEST-NOT KEY)
                         (SPLICE LIST1 RES))
                        (T (SETQ LIST1 (CDR LIST1)))))
              RES)))
)
(DEFINEQ

(SET-DIFFERENCE
  (CL:LAMBDA (LIST1 LIST2 &KEY TEST TEST-NOT KEY)            (* kbr: "28-Jun-86 21:43")
         (TEST-KEYS-SUPPLIED)
         (LET ((RES NIL))
              (DOLIST (CL:ELT LIST1)
                     (COND
                        ((NOT (%%MEMBER CL:ELT LIST2 TEST TEST-NOT KEY))
                         (CL:PUSH CL:ELT RES))
                        (T NIL)))
              RES)))

(NSET-DIFFERENCE
  (CL:LAMBDA (LIST1 LIST2 &KEY TEST TEST-NOT KEY)            (* kbr: "28-Jun-86 21:44")
         (TEST-KEYS-SUPPLIED)
         (LET ((RES NIL))
              (CL:DO NIL ((ENDP LIST1))
                     (COND
                        ((NOT (%%MEMBER (CAR LIST1)
                                     LIST2 TEST TEST-NOT KEY))
                         (SPLICE LIST1 RES))
                        (T (SETQ LIST1 (CDR LIST1)))))
              RES)))
)
(DEFINEQ

(SET-EXCLUSIVE-OR
  (CL:LAMBDA (LIST1 LIST2 &KEY TEST TEST-NOT KEY)            (* kbr: "28-Jun-86 21:44")
                                                             (* Returns new list of elements 
                                                             appearing exactly once in LIST1 and 
                                                             LIST2 *)
         (TEST-KEYS-SUPPLIED)
         (LET ((RESULT NIL))
              (DOLIST (CL:ELT LIST1)
                     (COND
                        ((NOT (%%MEMBER CL:ELT LIST2 TEST TEST-NOT KEY))
                         (SETQ RESULT (CONS CL:ELT RESULT)))))
              (DOLIST (CL:ELT LIST2)
                     (COND
                        ((NOT (%%MEMBER CL:ELT LIST1 TEST TEST-NOT KEY))
                         (SETQ RESULT (CONS CL:ELT RESULT)))))
              RESULT)))

(NSET-EXCLUSIVE-OR
  (CL:LAMBDA (LIST1 LIST2 &KEY TEST TEST-NOT KEY)            (* kbr: "28-Jun-86 21:45")
         (TEST-KEYS-SUPPLIED)
         (CL:DO ((X LIST1 (CDR X))
                 (SPLICEX NIL))
                ((ENDP X)
                 (COND
                    ((NULL SPLICEX)
                     (SETQ LIST1 LIST2))
                    (T (RPLACD SPLICEX LIST2)))
                 LIST1)
                (CL:DO ((Y LIST2 (CDR Y))
                        (SPLICEY NIL))
                       ((ENDP Y)
                        (SETQ SPLICEX X))
                       (COND
                          ((COND
                              (TEST-NOT (NOT (FUNCALL TEST-NOT (FUNCALL KEY (CAR X))
                                                    (FUNCALL KEY (CAR Y)))))
                              (T (FUNCALL TEST (FUNCALL KEY (CAR X))
                                        (FUNCALL KEY (CAR Y)))))
                           (COND
                              ((NULL SPLICEX)
                               (SETQ LIST1 (CDR X)))
                              (T (RPLACD SPLICEX (CDR X))))
                           (COND
                              ((NULL SPLICEY)
                               (SETQ LIST2 (CDR Y)))
                              (T (RPLACD SPLICEY (CDR Y))))
                           (RETURN NIL))
                          (T (SETQ SPLICEY Y)))))))
)
(DEFINEQ

(SUBSETP
  (CL:LAMBDA (LIST1 LIST2 &KEY TEST TEST-NOT KEY)            (* kbr: "28-Jun-86 21:45")
         (TEST-KEYS-SUPPLIED)
         (for CL:ELT in LIST1 always (%%MEMBER CL:ELT LIST2 TEST TEST-NOT KEY))))
)



(* Section 15.6 Association Lists. *)

(DEFINEQ

(ACONS
  (CL:LAMBDA (KEY DATUM ALIST)                               (* kbr: " 4-Jun-86 23:40")
                                                             (* Construct a new alist by adding the 
                                                             pair (KEY . DATUM) to ALIST *)
         (CONS (CONS KEY DATUM)
               ALIST)))

(PAIRLIS
  (CL:LAMBDA (KEYS DATA &OPTIONAL ALIST)                     (* kbr: "30-Jun-86 13:41")
                                                             (* Construct an association list from 
                                                             KEYS and DATA (adding to ALIST) *)
         (PROG (K D CELL ANSWER)                             (* Note: This implementation has the 
                                                             feature that the alist comes out in 
                                                             the same order that KEYS and DATA are 
                                                             input. *)
               (SETQ K KEYS)
               (SETQ D DATA)
               (COND
                  ((AND (ENDP K)
                        (ENDP D))
                   (RETURN ALIST))
                  ((OR (ENDP K)
                       (ENDP D))
                   (GO ERROR)))
               (SETQ ANSWER (LIST (CONS (CAR K)
                                        (CAR D))))           (* CELL is the last cons cell in 
                                                             ANSWER. *)
               (SETQ CELL ANSWER)
           LOOP
               (SETQ K (CDR K))
               (SETQ D (CDR D))
               (COND
                  ((AND (ENDP K)
                        (ENDP D))
                   (SETF (CDR CELL)
                         ALIST)
                   (RETURN ANSWER))
                  ((OR (ENDP K)
                       (ENDP D))
                   (GO ERROR)))
               (SETF (CDR CELL)
                     (LIST (CONS (CAR K)
                                 (CAR D))))
               (SETQ CELL (CDR CELL))
               (GO LOOP)
           ERROR
               (CL:ERROR "PAIRLIS keys and data have different length."))))
)
(DEFINEQ

(CL:ASSOC
  (CL:LAMBDA (ITEM ALIST &KEY TEST TEST-NOT KEY)             (* kbr: "28-Jun-86 21:46")
         (TEST-KEYS-SUPPLIED)
         (%%ASSOC ITEM ALIST TEST TEST-NOT KEY)))

(%%ASSOC
  (CL:LAMBDA (ITEM ALIST TEST TEST-NOT KEY)                  (* kbr: "28-Jun-86 21:52")
         (CL:DO ((ALIST ALIST (CDR ALIST)))
                ((ENDP ALIST))
                (CL:IF (CAR ALIST)
                       (CL:IF (%%TEST ITEM (CAAR ALIST)
                                     TEST TEST-NOT KEY)
                              (RETURN (CAR ALIST)))))))

(ASSOC-IF
  (CL:LAMBDA (PREDICATE ALIST)                               (* kbr: "25-Jun-86 17:46")
                                                             (* Returns the first cons in ALIST 
                                                             whose car satisfies the PREDICATE *)
         (CL:DO ((ALIST ALIST (CDR ALIST)))
                ((ENDP ALIST))
                (CL:IF (CAR ALIST)
                       (CL:IF (FUNCALL PREDICATE (CAAR ALIST))
                              (RETURN (CAR ALIST)))))))

(ASSOC-IF-NOT
  (CL:LAMBDA (PREDICATE ALIST)                               (* kbr: "25-Jun-86 17:47")
                                                             (* Returns the first cons in ALIST 
                                                             whose car does not satisfy the 
                                                             PREDICATE *)
         (CL:DO ((ALIST ALIST (CDR ALIST)))
                ((ENDP ALIST))
                (CL:IF (CAR ALIST)
                       (CL:IF (NOT (FUNCALL PREDICATE (CAAR ALIST)))
                              (RETURN (CAR ALIST)))))))

(RASSOC
  (CL:LAMBDA (ITEM ALIST &KEY TEST TEST-NOT KEY)
         (DECLARE (TYPE LIST ALIST))                         (* kbr: "28-Jun-86 21:47")
         (TEST-KEYS-SUPPLIED)
         (CL:DO ((ALIST ALIST (CDR ALIST)))
                ((ENDP ALIST))
                (CL:IF (CAR ALIST)
                       (CL:IF (%%TEST ITEM (CDAR ALIST)
                                     TEST TEST-NOT KEY)
                              (RETURN (CAR ALIST)))))))

(RASSOC-IF
  (CL:LAMBDA (PREDICATE ALIST)                               (* kbr: "25-Jun-86 17:51")
                                                             (* Returns the first cons in ALIST 
                                                             whose cdr satisfies the PREDICATE *)
         (CL:DO ((ALIST ALIST (CDR ALIST)))
                ((ENDP ALIST))
                (CL:IF (CAR ALIST)
                       (CL:IF (FUNCALL PREDICATE (CDAR ALIST))
                              (RETURN (CAR ALIST)))))))

(RASSOC-IF-NOT
  (CL:LAMBDA (PREDICATE ALIST)                               (* kbr: "25-Jun-86 17:52")
                                                             (* Returns the first cons in ALIST 
                                                             whose cdr does not satisfy the 
                                                             PREDICATE *)
         (CL:DO ((ALIST ALIST (CDR ALIST)))
                ((ENDP ALIST))
                (CL:IF (CAR ALIST)
                       (CL:IF (NOT (FUNCALL PREDICATE (CDAR ALIST)))
                              (RETURN (CAR ALIST)))))))
)



(* Section 7.8.4 Mapping *)

(DEFINEQ

(CL:MAPCAR
  (CL:LAMBDA (FUNCTION LIST &REST MORE-LISTS)                (* raf "18-Dec-85 17:28")
         (%%MAP FUNCTION (CONS LIST MORE-LISTS)
                :LIST T)))

(CL:MAPLIST
  (CL:LAMBDA (FUNCTION LIST &REST MORE-LISTS)                (* kbr: " 4-Jun-86 23:47")
                                                             (* Applies FUNCTION to successive CDRs 
                                                             of list, returns list of results.
                                                             *)
         (%%MAP FUNCTION (CONS LIST MORE-LISTS)
                :LIST NIL)))

(CL:MAPC
  (CL:LAMBDA (FUNCTION LIST &REST MORE-LISTS)                (* kbr: " 4-Jun-86 23:46")
                                                             (* Applies FUNCTION to successive 
                                                             elements of lists, returns NIL . *)
         (%%MAP FUNCTION (CONS LIST MORE-LISTS)
                NIL T)))

(MAPL
  (CL:LAMBDA (FUNCTION LIST &REST MORE-LISTS)                (* kbr: " 4-Jun-86 23:47")
                                                             (* Applies FUNCTION to successive CDRs 
                                                             of list, returns NIL . *)
         (%%MAP FUNCTION (CONS LIST MORE-LISTS)
                NIL NIL)))

(MAPCAN
  (CL:LAMBDA (FUNCTION LIST &REST MORE-LISTS)                (* kbr: " 4-Jun-86 23:47")
                                                             (* Applies FUNCTION to successive 
                                                             elements of list, returns NCONC of 
                                                             results. *)
         (%%MAP FUNCTION (CONS LIST MORE-LISTS)
                :NCONC T)))

(CL:MAPCON
  (CL:LAMBDA (FUNCTION LIST &REST MORE-LISTS)                (* kbr: " 4-Jun-86 23:48")
                                                             (* Applies FUNCTION to successive CDRs 
                                                             of lists, returns NCONC of results.
                                                             *)
         (%%MAP FUNCTION (CONS LIST MORE-LISTS)
                :NCONC NIL)))

(%%MAP
  (CL:LAMBDA (FUNCTION ORIGINAL-ARGLISTS ACCUMULATE TAKE-CAR)(* kbr: " 4-Jun-86 23:46")
          
          (* This function is called by MAPC, MAPCAR, MAPCAN, MAPL, MAPLIST, and MAPCON.
          It maps function over the arglists in the appropriate way.
          It is done when any of the arglists runs out.
          Until then, it CDRs down the arglists calling the FUNCTION and accumulating 
          results as desired. *)

         (LET* ((ARGLISTS (COPY-LIST ORIGINAL-ARGLISTS))
                (RET-LIST (LIST NIL))
                (TEMP RET-LIST))
               (CL:DO ((RES NIL)
                       (ARGS (QUOTE NIL)
                             (QUOTE NIL)))
                      ((DOLIST (X ARGLISTS NIL)
                              (COND
                                 ((NULL X)
                                  (RETURN T))
                                 (T NIL)))
                       (COND
                          (ACCUMULATE (CDR RET-LIST))
                          (T (CAR ORIGINAL-ARGLISTS))))
                      (CL:DO ((L ARGLISTS (CDR L)))
                             ((NULL L))
                             (push ARGS (COND
                                           (TAKE-CAR (CAAR L))
                                           (T (CAR L))))
                             (SETF (CAR L)
                                   (CDAR L)))
                      (SETQ RES (APPLY FUNCTION (NREVERSE ARGS)))
                      (CASE ACCUMULATE (:NCONC (SETQ TEMP (LAST (NCONC TEMP RES))))
                            (:LIST (RPLACD TEMP (LIST RES))
                                   (SETQ TEMP (CDR TEMP))))))))
)



(* Stuff I'm not sure where to place yet. *)




(* It seems that DELQ ASSQ MEMQ aren't part of Common Lisp but part of Spice Lisp. What 
functions in the system are currently depending on these functions? *)

(DEFINEQ

(DELQ
  (CL:LAMBDA (ITEM LIST &OPTIONAL (N 0 NP))                  (* kbr: " 4-Jun-86 23:48")
         (DECLARE (TYPE FIXNUM N))                           (* Returns list with all
                                                             (up to N) elements with all elements 
                                                             EQ to ITEM deleted *)
         (CL:DO ((X LIST (CDR X))
                 (SPLICE (QUOTE NIL)))
                ((OR (ENDP X)
                     (AND NP (ZEROP N)))
                 LIST)
                (COND
                   ((EQ ITEM (CAR X))
                    (SETQ N (1- N))
                    (COND
                       ((NULL SPLICE)
                        (SETQ LIST (CDR X)))
                       (T (RPLACD SPLICE (CDR X)))))
                   (T (SETQ SPLICE X))))))
)



(* CL:EVERY should be in CMLSEQ. *)


(PUTPROPS CL:EVERY DMACRO 
          (DEFMACRO (FUNCTION &REST LISTS) (LET
                                            ((GENSYM (GENSYM))
                                             (TAIL-VARS (for X in LISTS collect (GENSYM))))
                                            (BQUOTE
                                             (LET
                                              (((\, GENSYM)
                                                T))
                                              (CL:DO
                                               ((\,@ (for X in LISTS as TAIL-VAR in TAIL-VARS collect
                                                          (LIST TAIL-VAR X (BQUOTE
                                                                            (CDR (\, TAIL-VAR)))))))
                                               ((NOT (AND (\,@ TAIL-VARS)))
                                                (\, GENSYM))
                                               (OR
                                                (SETQ
                                                 (\, GENSYM)
                                                 (AND
                                                  (\, GENSYM)
                                                  (FUNCALL
                                                   (\, FUNCTION)
                                                   (\,@ (for X in TAIL-VARS collect
                                                             (BQUOTE (CAR (\, X))))))))
                                                (RETURN NIL)))))) )
)
(MOVD (QUOTE ASSOC)
      (QUOTE ASSQ))
(MOVD (QUOTE FMEMB)
      (QUOTE MEMQ))
(* NREVERSE should be in CMLSEQ. *)
(MOVD (QUOTE DREVERSE)
      (QUOTE NREVERSE))
(DECLARE: DONTEVAL@LOAD DOEVAL@COMPILE DONTCOPY COMPILERVARS 

(ADDTOVAR NLAMA )

(ADDTOVAR NLAML )

(ADDTOVAR LAMA 
          DELQ CL:MAPCON MAPCAN MAPL CL:MAPC CL:MAPLIST CL:MAPCAR RASSOC CL:ASSOC PAIRLIS SUBSETP 
               NSET-EXCLUSIVE-OR SET-EXCLUSIVE-OR NSET-DIFFERENCE SET-DIFFERENCE NINTERSECTION NUNION 
               ADJOIN MEMBER-IF-NOT MEMBER-IF CL:MEMBER NSUBLIS NSUBST-IF-NOT NSUBST-IF NSUBST 
               SUBST-IF-NOT SUBST-IF CL:SUBST NBUTLAST BUTLAST MAKE-LIST TREE-EQUAL CL:INTERSECTION 
               CL:UNION CL:SUBLIS %%TREE-EQUAL-TEST-NOT %%TREE-EQUAL-TEST)
)
(PRETTYCOMPRINT CMLLISTCOMS)

(RPAQQ CMLLISTCOMS 
       ((* * CMLLIST. Common Lisp Lists Covers all of chapter 15 -- By Kelly Roach, Larry Masinter, 
           and Ron Fischer. *)
        (COMS (* Section 15.1 Conses. *)
              (* CAR, CDR, ..., CDDDDR (all functions on pages 262-263)
                 are OK. *)
              (* CONS is OK. *)
              (FNS TREE-EQUAL %%TREE-EQUAL-TEST %%TREE-EQUAL-TEST-NOT))
        (COMS (* Section 15.2 Lists. *)
              (FNS ENDP LIST-LENGTH)
              (COMS (FNS CL:NTH %%SETNTH)
                    (PROP SETFN CL:NTH))
              (COMS (FNS CL:FIRST SECOND THIRD FOURTH FIFTH SIXTH SEVENTH EIGHTH NINTH TENTH REST)
                    (* Macros to make SETF work and code optimize *)
                    (MACROS CL:FIRST SECOND THIRD FOURTH FIFTH SIXTH SEVENTH EIGHTH NINTH TENTH REST)
                    )
              (FNS NTHCDR)
              (* LAST LIST LIST* are OK. *)
              (FNS MAKE-LIST)
              (* Common Lisp APPEND is different from Interlisp APPEND because Interlisp APPEND 
                 copies its last arg while Common Lisp APPEND does not. See page 268 of the silver 
                 book. *)
              (FNS CL:APPEND)
              (FNS COPY-LIST COPY-ALIST COPY-TREE REVAPPEND)
              (* NCONC is OK. *)
              (FNS NRECONC)
              (* CL:PUSH and CL:PUSHNEW are macros defined somewhere else. Don't know where that is. 
                 POP is OK. *)
              (FNS BUTLAST NBUTLAST CL:LDIFF))
        (COMS (* Section 15.3 Alteration of List Structure. *)
              (* RPLACA RPLACD are OK. *))
        (COMS (* Section 15.4 Substitution of Expressions. *)
              (DECLARE: DONTCOPY DOEVAL@COMPILE (FUNCTIONS SPLICE TEST-KEYS-SUPPLIED))
              (FNS %%TEST)
              (FNS CL:SUBST %%SUBST SUBST-IF %%SUBST-IF SUBST-IF-NOT %%SUBST-IF-NOT NSUBST %%NSUBST 
                   NSUBST-IF %%NSUBST-IF NSUBST-IF-NOT %%NSUBST-IF-NOT)
              (FNS CL:SUBLIS %%SUBLIS NSUBLIS %%NSUBLIS))
        (COMS (* Section 15.5 Usng Lists as Sets. *)
              (DECLARE: DONTCOPY DOEVAL@COMPILE (FUNCTIONS SPLICE))
              (FNS CL:MEMBER %%MEMBER MEMBER-IF MEMBER-IF-NOT)
              (PROP DMACRO CL:MEMBER)
              (* TAILP is OK. *)
              (FNS ADJOIN)
              (FNS CL:UNION NUNION)
              (FNS CL:INTERSECTION NINTERSECTION)
              (FNS SET-DIFFERENCE NSET-DIFFERENCE)
              (FNS SET-EXCLUSIVE-OR NSET-EXCLUSIVE-OR)
              (FNS SUBSETP))
        (COMS (* Section 15.6 Association Lists. *)
              (FNS ACONS PAIRLIS)
              (FNS CL:ASSOC %%ASSOC ASSOC-IF ASSOC-IF-NOT RASSOC RASSOC-IF RASSOC-IF-NOT))
        (COMS (* Section 7.8.4 Mapping *)
              (FNS CL:MAPCAR CL:MAPLIST CL:MAPC MAPL MAPCAN CL:MAPCON %%MAP))
        (COMS (* Stuff I'm not sure where to place yet. *)
              (* It seems that DELQ ASSQ MEMQ aren't part of Common Lisp but part of Spice Lisp. What 
                 functions in the system are currently depending on these functions? *)
              (FNS DELQ)
              (* CL:EVERY should be in CMLSEQ. *)
              (PROP DMACRO CL:EVERY)
              (P (MOVD (QUOTE ASSOC)
                       (QUOTE ASSQ))
                 (MOVD (QUOTE FMEMB)
                       (QUOTE MEMQ))
                 (* NREVERSE should be in CMLSEQ. *)
                 (MOVD (QUOTE DREVERSE)
                       (QUOTE NREVERSE))))
        (DECLARE: DONTEVAL@LOAD DOEVAL@COMPILE DONTCOPY COMPILERVARS
               (ADDVARS (NLAMA)
                      (NLAML)
                      (LAMA DELQ CL:MAPCON MAPCAN MAPL CL:MAPC CL:MAPLIST CL:MAPCAR RASSOC CL:ASSOC 
                            PAIRLIS SUBSETP NSET-EXCLUSIVE-OR SET-EXCLUSIVE-OR NSET-DIFFERENCE 
                            SET-DIFFERENCE NINTERSECTION NUNION ADJOIN MEMBER-IF-NOT MEMBER-IF 
                            CL:MEMBER NSUBLIS NSUBST-IF-NOT NSUBST-IF NSUBST SUBST-IF-NOT SUBST-IF 
                            CL:SUBST NBUTLAST BUTLAST CL:APPEND MAKE-LIST TREE-EQUAL CL:INTERSECTION 
                            CL:UNION CL:SUBLIS %%TREE-EQUAL-TEST-NOT %%TREE-EQUAL-TEST)))))
(DECLARE: DONTEVAL@LOAD DOEVAL@COMPILE DONTCOPY COMPILERVARS 

(ADDTOVAR NLAMA )

(ADDTOVAR NLAML )

(ADDTOVAR LAMA 
          DELQ CL:MAPCON MAPCAN MAPL CL:MAPC CL:MAPLIST CL:MAPCAR RASSOC CL:ASSOC PAIRLIS SUBSETP 
               NSET-EXCLUSIVE-OR SET-EXCLUSIVE-OR NSET-DIFFERENCE SET-DIFFERENCE NINTERSECTION NUNION 
               ADJOIN MEMBER-IF-NOT MEMBER-IF CL:MEMBER NSUBLIS NSUBST-IF-NOT NSUBST-IF NSUBST 
               SUBST-IF-NOT SUBST-IF CL:SUBST NBUTLAST BUTLAST CL:APPEND MAKE-LIST TREE-EQUAL 
               CL:INTERSECTION CL:UNION CL:SUBLIS %%TREE-EQUAL-TEST-NOT %%TREE-EQUAL-TEST)
)
(PUTPROPS CMLLIST COPYRIGHT ("Xerox Corporation" 1985 1986))
(DECLARE: DONTCOPY
  (FILEMAP (NIL (4776 6358 (TREE-EQUAL 4786 . 5340) (%%TREE-EQUAL-TEST 5342 . 5833) (
%%TREE-EQUAL-TEST-NOT 5835 . 6356)) (6393 7459 (ENDP 6403 . 6633) (LIST-LENGTH 6635 . 7457)) (7460 
8455 (CL:NTH 7470 . 7614) (%%SETNTH 7616 . 8453)) (8494 9340 (CL:FIRST 8504 . 8634) (SECOND 8636 . 
8765) (THIRD 8767 . 8821) (FOURTH 8823 . 8879) (FIFTH 8881 . 8942) (SIXTH 8944 . 9006) (SEVENTH 9008
 . 9073) (EIGHTH 9075 . 9140) (NINTH 9142 . 9212) (TENTH 9214 . 9285) (REST 9287 . 9338)) (10200 10785
 (NTHCDR 10210 . 10783)) (10824 11383 (MAKE-LIST 10834 . 11381)) (11566 12035 (CL:APPEND 11576 . 12033
)) (12036 14990 (COPY-LIST 12046 . 12581) (COPY-ALIST 12583 . 14124) (COPY-TREE 14126 . 14593) (
REVAPPEND 14595 . 14988)) (15018 15188 (NRECONC 15028 . 15186)) (15299 17265 (BUTLAST 15309 . 16133) (
NBUTLAST 16135 . 16862) (CL:LDIFF 16864 . 17263)) (18524 18824 (%%TEST 18534 . 18822)) (18825 26273 (
CL:SUBST 18835 . 19329) (%%SUBST 19331 . 20380) (SUBST-IF 20382 . 20727) (%%SUBST-IF 20729 . 21567) (
SUBST-IF-NOT 21569 . 21988) (%%SUBST-IF-NOT 21990 . 22912) (NSUBST 22914 . 23108) (%%NSUBST 23110 . 
24015) (NSUBST-IF 24017 . 24174) (%%NSUBST-IF 24176 . 25126) (NSUBST-IF-NOT 25128 . 25293) (
%%NSUBST-IF-NOT 25295 . 26271)) (26274 28939 (CL:SUBLIS 26284 . 26667) (%%SUBLIS 26669 . 27605) (
NSUBLIS 27607 . 27801) (%%NSUBLIS 27803 . 28937)) (29531 31024 (CL:MEMBER 29541 . 29835) (%%MEMBER 
29837 . 30100) (MEMBER-IF 30102 . 30556) (MEMBER-IF-NOT 30558 . 31022)) (33548 34007 (ADJOIN 33558 . 
34005)) (34008 35036 (CL:UNION 34018 . 34552) (NUNION 34554 . 35034)) (35037 36065 (CL:INTERSECTION 
35047 . 35587) (NINTERSECTION 35589 . 36063)) (36066 36985 (SET-DIFFERENCE 36076 . 36494) (
NSET-DIFFERENCE 36496 . 36983)) (36986 39298 (SET-EXCLUSIVE-OR 36996 . 37882) (NSET-EXCLUSIVE-OR 37884
 . 39296)) (39299 39547 (SUBSETP 39309 . 39545)) (39594 41876 (ACONS 39604 . 39967) (PAIRLIS 39969 . 
41874)) (41877 45312 (CL:ASSOC 41887 . 42080) (%%ASSOC 42082 . 42476) (ASSOC-IF 42478 . 43023) (
ASSOC-IF-NOT 43025 . 43653) (RASSOC 43655 . 44131) (RASSOC-IF 44133 . 44679) (RASSOC-IF-NOT 44681 . 
45310)) (45349 49423 (CL:MAPCAR 45359 . 45547) (CL:MAPLIST 45549 . 46013) (CL:MAPC 46015 . 46401) (
MAPL 46403 . 46783) (MAPCAN 46785 . 47250) (CL:MAPCON 47252 . 47718) (%%MAP 47720 . 49421)) (49645 
50518 (DELQ 49655 . 50516)))))
STOP