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(PROVIDE "pile")
(IMPORT-MODULE "includer")
(IMPORT-MODULE "scanner")
(IN-PACKAGE "BOOTTRAN")
(DEFUN |shoeFirstTokPosn| (|t|) (|shoeTokPosn| (CAAR |t|)))
(DEFUN |shoeLastTokPosn| (|t|) (|shoeTokPosn| (CADR |t|)))
(DEFUN |shoePileColumn| (|t|) (CDR (|shoeTokPosn| (CAAR |t|))))
(DEFUN |shoePileInsert| (|s|)
(PROG (|a| |toktype|)
(RETURN
(COND
((|bStreamNull| |s|) (CONS NIL |s|))
(#0='T (SETQ |toktype| (|shoeTokType| (CAAAR |s|)))
(COND
((OR (EQ |toktype| 'LISP) (EQ |toktype| 'LINE))
(CONS (LIST (CAR |s|)) (CDR |s|)))
(#0# (SETQ |a| (|shoePileTree| (- 1) |s|))
(CONS (LIST (ELT |a| 2)) (ELT |a| 3)))))))))
(DEFUN |shoePileTree| (|n| |s|)
(PROG (|hh| |t| |h| |LETTMP#1|)
(RETURN
(COND
((|bStreamNull| |s|) (LIST NIL |n| NIL |s|))
(#0='T (SETQ |LETTMP#1| (LIST (CAR |s|) (CDR |s|)))
(SETQ |h| (CAR |LETTMP#1|)) (SETQ |t| (CADR |LETTMP#1|))
(SETQ |hh| (|shoePileColumn| |h|))
(COND
((< |n| |hh|) (|shoePileForests| |h| |hh| |t|))
(#0# (LIST NIL |n| NIL |s|))))))))
(DEFUN |eqshoePileTree| (|n| |s|)
(PROG (|hh| |t| |h| |LETTMP#1|)
(RETURN
(COND
((|bStreamNull| |s|) (LIST NIL |n| NIL |s|))
(#0='T (SETQ |LETTMP#1| (LIST (CAR |s|) (CDR |s|)))
(SETQ |h| (CAR |LETTMP#1|)) (SETQ |t| (CADR |LETTMP#1|))
(SETQ |hh| (|shoePileColumn| |h|))
(COND
((EQUAL |hh| |n|) (|shoePileForests| |h| |hh| |t|))
(#0# (LIST NIL |n| NIL |s|))))))))
(DEFUN |shoePileForest| (|n| |s|)
(PROG (|t1| |h1| |t| |h| |hh| |b| |LETTMP#1|)
(RETURN
(PROGN
(SETQ |LETTMP#1| (|shoePileTree| |n| |s|))
(SETQ |b| (CAR |LETTMP#1|))
(SETQ |hh| (CADR . #0=(|LETTMP#1|)))
(SETQ |h| (CADDR . #0#))
(SETQ |t| (CADDDR . #0#))
(COND
(|b| (SETQ |LETTMP#1| (|shoePileForest1| |hh| |t|))
(SETQ |h1| (CAR |LETTMP#1|))
(SETQ |t1| (CADR |LETTMP#1|))
(LIST (CONS |h| |h1|) |t1|))
('T (LIST NIL |s|)))))))
(DEFUN |shoePileForest1| (|n| |s|)
(PROG (|t1| |h1| |t| |h| |n1| |b| |LETTMP#1|)
(RETURN
(PROGN
(SETQ |LETTMP#1| (|eqshoePileTree| |n| |s|))
(SETQ |b| (CAR |LETTMP#1|))
(SETQ |n1| (CADR . #0=(|LETTMP#1|)))
(SETQ |h| (CADDR . #0#))
(SETQ |t| (CADDDR . #0#))
(COND
(|b| (SETQ |LETTMP#1| (|shoePileForest1| |n| |t|))
(SETQ |h1| (CAR |LETTMP#1|))
(SETQ |t1| (CADR |LETTMP#1|))
(LIST (CONS |h| |h1|) |t1|))
('T (LIST NIL |s|)))))))
(DEFUN |shoePileForests| (|h| |n| |s|)
(PROG (|t1| |h1| |LETTMP#1|)
(RETURN
(PROGN
(SETQ |LETTMP#1| (|shoePileForest| |n| |s|))
(SETQ |h1| (CAR |LETTMP#1|))
(SETQ |t1| (CADR |LETTMP#1|))
(COND
((|bStreamNull| |h1|) (LIST T |n| |h| |s|))
('T (|shoePileForests| (|shoePileCtree| |h| |h1|) |n| |t1|)))))))
(DEFUN |shoePileCtree| (|x| |y|)
(|dqAppend| |x| (|shoePileCforest| |y|)))
(DEFUN |shoePileCforest| (|x|)
(PROG (|b| |a|)
(RETURN
(COND
((NULL |x|) NIL)
((NULL (CDR |x|)) (CAR |x|))
(#0='T (SETQ |a| (CAR |x|))
(SETQ |b| (|shoePileCoagulate| |a| (CDR |x|)))
(COND
((NULL (CDR |b|)) (CAR |b|))
(#0# (|shoeEnPile| (|shoeSeparatePiles| |b|)))))))))
(DEFUN |shoePileCoagulate| (|a| |b|)
(PROG (|e| |d| |c|)
(RETURN
(COND
((NULL |b|) (LIST |a|))
(#0='T (SETQ |c| (CAR |b|))
(COND
((OR (EQ (|shoeTokPart| (CAAR |c|)) 'THEN)
(EQ (|shoeTokPart| (CAAR |c|)) 'ELSE))
(|shoePileCoagulate| (|dqAppend| |a| |c|) (CDR |b|)))
(#0# (SETQ |d| (CADR |a|)) (SETQ |e| (|shoeTokPart| |d|))
(COND
((AND (EQCAR |d| 'KEY)
(OR (GET |e| 'SHOEINF) (EQ |e| 'COMMA)
(EQ |e| 'SEMICOLON)))
(|shoePileCoagulate| (|dqAppend| |a| |c|) (CDR |b|)))
(#0# (CONS |a| (|shoePileCoagulate| |c| (CDR |b|))))))))))))
(DEFUN |shoeSeparatePiles| (|x|)
(PROG (|semicolon| |a|)
(RETURN
(COND
((NULL |x|) NIL)
((NULL (CDR |x|)) (CAR |x|))
('T (SETQ |a| (CAR |x|))
(SETQ |semicolon|
(|dqUnit|
(|shoeTokConstruct| 'KEY 'BACKSET
(|shoeLastTokPosn| |a|))))
(|dqConcat|
(LIST |a| |semicolon| (|shoeSeparatePiles| (CDR |x|)))))))))
(DEFUN |shoeEnPile| (|x|)
(|dqConcat|
(LIST (|dqUnit|
(|shoeTokConstruct| 'KEY 'SETTAB
(|shoeFirstTokPosn| |x|)))
|x|
(|dqUnit|
(|shoeTokConstruct| 'KEY 'BACKTAB
(|shoeLastTokPosn| |x|))))))
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