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ifdo.lisp
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(FILEHEADER IFDO)
(PRINT '(IF AND DO FUNCTIONS WRITTEN BY BLAKE MCBRIDE))
(PRINT '(VERSION 5))
(DEFINEQ
(COMP2
[LAMBDA (F F2 P Q)
(COND ((ATOM P) P)
[(MATCH (LIST F '(? (0 T NIL Q T))) (CAR P))
(CONS (EVAL (LIST F2 (LIST 'QUOTE Q)))
(COMP2 F F2 (CDR P]
((CONS (COMP2 F F2 (CAR P)) (COMP2 F F2 (CDR P])
(COMPILE
[LAMBDA (A)
(MAPC A
'(LAMBDA (A)
(PUTD A
(COMP2 'DO 'DO-C
(COMP2 'IF 'IF-C
(COMP2 'ITP 'ITP-C (GETD A])
(COMPILEN
(NLAMBDA A (COMPILE A)))
(DO
(NLAMBDA DO-ARG- (EVAL (DO-C DO-ARG-))))
(DO-C
[LAMBDA (ARG)
(PROG (EXPR (B 1)
(E 1)
(I 1)
RETE
(RETV (GENSYM))
LVARS AFTER BODY DIR)
(SELECTQ
(CAR ARG)
((WHILE UNTIL)
[SETQ EXPR
(IF (EQ 'WHILE (CAR ARG))
THEN
(CADR ARG)
ELSE
(LIST 'NULL (CADR ARG]
(SETQ BODY
(PROG NIL
(MAP (CDDR ARG)
'(LAMBDA
(ARG)
(SET (SELECTQ
(CAR ARG)
((RETURN RET) 'RETE)
((RETURNV RETV) 'RETV)
(LVARS 'LVARS)
(AFTER 'AFTER)
(DO (RETURN (CDR ARG)))
(RETURN ARG))
(CADR ARG)))
'CDDR)))
(RETURN (DOWHILE EXPR RETE RETV LVARS AFTER BODY)))
(FOR (SETQ BODY
(PROG NIL
(MAP (CDR ARG)
'(LAMBDA
(ARG)
(SET (SELECTQ
(CAR ARG)
((COUNTV VAR) 'EXPR)
((BEGINNING BEG) 'B)
((ENDING END) 'E)
((INCREMENT INC) 'I)
((RETURN RET) 'RETE)
((RETURNV RETV)
'RETV)
((DIRECTION DIR)
'DIR)
(LVARS 'LVARS)
(AFTER 'AFTER)
(DO (RETURN
(CDR ARG)))
(RETURN ARG))
(CADR ARG)))
'CDDR)))
(OR EXPR (SETQ EXPR (GENSYM)))
(SETQ LVARS (CONS (LIST EXPR B) LVARS))
[SETQ AFTER
(COND ((NLISTP AFTER)
(LIST 'SETQ EXPR
(LIST
(COND
((EQ 'DOWN DIR)
'DIFFERENCE)
('PLUS))
EXPR I)))
[(EQ 'PROGN (CAR AFTER))
(APPEND AFTER
(CONS (LIST 'SETQ EXPR
(LIST
(COND
((EQ 'DOWN DIR)
'DIFFERENCE)
('PLUS))
EXPR I]
((LIST 'PROGN AFTER
(LIST 'SETQ EXPR
(LIST
(COND
((EQ 'DOWN DIR)
'DIFFERENCE)
('PLUS))
EXPR I]
(SETQ EXPR
(LIST (COND ((EQ 'DOWN DIR) 'GEQ)
('LEQ))
EXPR E))
(RETURN
(DOWHILE EXPR RETE RETV LVARS AFTER BODY)))
(RETURN (CONS 'PROGN ARG])
(DOWHILE
[LAMBDA (EXPR RET VAR LVARS AFTER LIST)
(SELECTQ RET
(LAST (LIST 'PROG
(CONS VAR LVARS)
'LOOP
(LIST 'COND
(LIST EXPR
(LIST 'SETQ VAR
(CONS 'PROGN LIST))
AFTER
'(GO LOOP))
(LIST (LIST 'RETURN VAR)))
'AFTER AFTER
'(GO LOOP)
'END
(LIST 'RETURN VAR)))
(LIST (LIST 'PROG
(CONS VAR LVARS)
'LOOP
(LIST 'COND
(LIST EXPR
(LIST 'SETQ VAR
(LIST 'CONS
(CONS 'PROGN LIST)
VAR))
AFTER
'(GO LOOP))
(LIST (LIST 'RETURN VAR)))
'AFTER AFTER
'(GO LOOP)
'END
(LIST 'RETURN VAR)))
(LIST 'PROG LVARS 'LOOP
(LIST 'COND
(APPEND
(CONS EXPR LIST)
(LIST AFTER '(GO LOOP)))
(LIST (LIST 'RETURN RET)))
'AFTER AFTER
'(GO LOOP)
'END
(LIST 'RETURN RET])
(IF
(NLAMBDA IF-ARGS- (EVAL (IF-C IF-ARGS-))))
(IF-C
[LAMBDA (ARG)
(PROG ((LEN (LENGTH ARG))
(IKL '(THEN ELSEIF ELSE THENRET))
(STATE 'INIT)
TOTALCOL COL)
(COND [(AND (EQ LEN 2)
(NULL (MEMB (CADR ARG) IKL)))
(RETURN
(LIST 'COND (LIST (CAR ARG) (CADR ARG]
[[EVERY ARG
'(LAMBDA (XX) (NULL (MEMB XX IKL]
(RETURN
(LIST 'COND
(LIST (CAR ARG) (CADR ARG))
(CONS T (CDDR ARG]
(T (MAPC (REVERSE ARG)
'(LAMBDA
(XX)
(SELECTQ STATE
[INIT (COND
((MEMB XX IKL)
(SETQ COL NIL)
(SETQ STATE 'THEN))
(T (SETQ STATE 'COL)
(SETQ COL (CONS XX NIL]
[COL (COND
((MEMB XX IKL)
(SELECTQ XX
(ELSE
(SETQ STATE 'INIT)
(SETQ TOTALCOL
(CONS
(CONS T COL)
TOTALCOL)))
(THEN
(SETQ STATE 'THEN))
NIL))
(T (SETQ COL (CONS XX COL]
(THEN (SETQ STATE 'COMPL)
(SETQ TOTALCOL
(CONS
(CONS XX COL)
TOTALCOL)))
(COMPL (SETQ STATE 'INIT))
NIL)))
(RETURN (CONS 'COND TOTALCOL])
(ITP
(NLAMBDA ITP-ARG- (EVAL (ITP-C ITP-ARG-))))
(ITP-C
[LAMBDA (ARG)
(PROG (L R)
(RETURN (COND ((ATOM ARG) ARG)
((MATCH '(*) ARG)
(ITP-C (CAR ARG)))
((MATCH
'((?? (1 1 NIL L NIL OR)
(LITATOM))
=
(? (1 T NIL R T)))
ARG)
(LIST 'SETQ (CAR L) (ITP-C R)))
((MATCH
'((? (1 T NIL L T))
|
(? (1 T NIL R T)))
ARG)
(LIST 'OR (ITP-C L) (ITP-C R)))
((MATCH
'((? (1 T NIL L T))
&
(? (1 T NIL R T)))
ARG)
(LIST 'AND (ITP-C L) (ITP-C R)))
((MATCH
'((? (1 T NIL L T))
[
(? (1 T NIL R T)))
ARG)
(LIST 'LESSP (ITP-C L) (ITP-C R)))
((MATCH
'((? (1 T NIL L T))
]
(? (1 T NIL R T)))
ARG)
(LIST 'GREATERP (ITP-C L) (ITP-C R)))
((MATCH
'((? (1 T NIL L T))
[=
(? (1 T NIL R T)))
ARG)
(LIST 'LEQ (ITP-C L) (ITP-C R)))
((MATCH
'((? (1 T NIL L T))
]=
(? (1 T NIL R T)))
ARG)
(LIST 'GEQ (ITP-C L) (ITP-C R)))
((MATCH
'((? (1 T NIL L T))
+
(? (1 T NIL R T)))
ARG)
(LIST 'PLUS (ITP-C L) (ITP-C R)))
((MATCH
'((? (1 T NIL L T))
-
(? (1 T NIL R T)))
ARG)
(LIST 'DIFFERENCE
(ITP-C L)
(ITP-C R)))
((MATCH
'((? (1 T NIL L T))
(?? (1 1 NIL NIL NIL OR)
(ITP-S))
(? (1 T NIL R T)))
ARG)
(LIST 'TIMES (ITP-C L) (ITP-C R)))
((MATCH
'((? (1 T NIL L T))
/
(? (1 T NIL R T)))
ARG)
(LIST 'QUOTIENT (ITP-C L) (ITP-C R)))
((MATCH
'((? (1 T NIL L T))
\
(? (1 T NIL R T)))
ARG)
(LIST 'REMAINDER (ITP-C L) (ITP-C R)))
((MATCH
'((? (1 1 NIL L T) (- ^))
(? (1 T NIL R T)))
ARG)
(LIST 'TIMES (ITP-C L) (ITP-C R)))
((MATCH
'((? (1 T NIL L T))
^
(? (1 T NIL R T)))
ARG)
(LIST 'EXPT (ITP-C L) (ITP-C R)))
((MATCH '(- (? (1 T NIL R T))) ARG)
(LIST 'MINUS (ITP-C R)))
(ARG])
(ITP-S
(LAMBDA (A) (EQ '* A)))
)
(PRINT 'IFDOFNS)
(RPAQQ IFDOFNS
(COMP2 COMPILE COMPILEN DO DO-C DOWHILE IF IF-C ITP ITP-C ITP-S))
(RPAQQ IFDOCOMS (IF AND DO FUNCTIONS WRITTEN BY BLAKE MCBRIDE))
(RPAQ IFDOGENNR 5)
STOP