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|
(PROCLAIM '(OPTIMIZE SPEED))
(IMPORT-MODULE "tokens")
(IMPORT-MODULE "includer")
(IN-PACKAGE "BOOTTRAN")
(PROVIDE "scanner")
(DEFCONSTANT |shoeTAB| (CODE-CHAR 9))
(DEFUN |dqUnit| (|s|)
(LET* (|a|)
(PROGN (SETQ |a| (LIST |s|)) (CONS |a| |a|))))
(DEFUN |dqAppend| (|x| |y|)
(COND ((NULL |x|) |y|) ((NULL |y|) |x|)
(T (RPLACD (CDR |x|) (CAR |y|)) (RPLACD |x| (CDR |y|)) |x|)))
(DEFUN |dqConcat| (|ld|)
(COND ((NULL |ld|) NIL) ((NULL (CDR |ld|)) (CAR |ld|))
(T (|dqAppend| (CAR |ld|) (|dqConcat| (CDR |ld|))))))
(DEFUN |dqToList| (|s|) (COND ((NULL |s|) NIL) (T (CAR |s|))))
(DEFUN |shoeNextLine| (|s|)
(LET* (|s1| |a|)
(DECLARE (SPECIAL |$sz| |$n| |$ln| |$r| |$f| |$linepos|))
(COND ((|bStreamNull| |s|) NIL)
(T (SETQ |$linepos| |s|) (SETQ |$f| (CAR |s|)) (SETQ |$r| (CDR |s|))
(SETQ |$ln| (CAR |$f|))
(SETQ |$n| (|firstNonblankPosition| |$ln| 0))
(SETQ |$sz| (LENGTH |$ln|))
(COND ((NULL |$n|) T)
((CHAR= (SCHAR |$ln| |$n|) |shoeTAB|)
(SETQ |a| (|makeString| (- 7 (REM |$n| 8)) (|char| '| |)))
(SETF (SCHAR |$ln| |$n|) (|char| '| |))
(SETQ |$ln| (CONCAT |a| |$ln|))
(SETQ |s1| (CONS (CONS |$ln| (CDR |$f|)) |$r|))
(|shoeNextLine| |s1|))
(T T))))))
(DEFUN |shoeLineToks| (|s|)
(LET* ((|$f| NIL)
(|$r| NIL)
(|$ln| NIL)
(|$n| NIL)
(|$sz| NIL)
(|$floatok| T)
(|$linepos| |s|)
|toks|
|dq|
|command|)
(DECLARE (SPECIAL |$f| |$r| |$ln| |$n| |$sz| |$floatok| |$linepos|))
(COND ((NOT (|shoeNextLine| |s|)) (CONS NIL NIL))
((NULL |$n|) (|shoeLineToks| |$r|))
((CHAR= (SCHAR |$ln| 0) (|char| '|)|))
(COND
((SETQ |command| (|shoeLine?| |$ln|))
(SETQ |dq|
(|dqUnit|
(|makeToken| |$linepos| (|shoeLeafLine| |command|) 0)))
(CONS (LIST |dq|) |$r|))
((SETQ |command| (|shoeLisp?| |$ln|))
(|shoeLispToken| |$r| |command|))
(T (|shoeLineToks| |$r|))))
(T (SETQ |toks| NIL)
(LOOP
(COND ((NOT (< |$n| |$sz|)) (RETURN NIL))
(T (SETQ |toks| (|dqAppend| |toks| (|shoeToken|))))))
(COND ((NULL |toks|) (|shoeLineToks| |$r|))
(T (CONS (LIST |toks|) |$r|)))))))
(DEFUN |shoeLispToken| (|s| |string|)
(LET* (|dq| |st| |r| |LETTMP#1| |linepos| |ln|)
(DECLARE (SPECIAL |$linepos| |$ln|))
(PROGN
(COND
((OR (EQL (LENGTH |string|) 0) (CHAR= (SCHAR |string| 0) (|char| '|;|)))
(SETQ |string| "")))
(SETQ |ln| |$ln|)
(SETQ |linepos| |$linepos|)
(SETQ |LETTMP#1| (|shoeAccumulateLines| |s| |string|))
(SETQ |r| (CAR |LETTMP#1|))
(SETQ |st| (CDR |LETTMP#1|))
(SETQ |dq| (|dqUnit| (|makeToken| |linepos| (|shoeLeafLisp| |st|) 0)))
(CONS (LIST |dq|) |r|))))
(DEFUN |shoeAccumulateLines| (|s| |string|)
(LET* (|a| |command|)
(DECLARE (SPECIAL |$ln| |$r| |$n|))
(COND ((NOT (|shoeNextLine| |s|)) (CONS |s| |string|))
((NULL |$n|) (|shoeAccumulateLines| |$r| |string|))
((EQL (LENGTH |$ln|) 0) (|shoeAccumulateLines| |$r| |string|))
((CHAR= (SCHAR |$ln| 0) (|char| '|)|))
(SETQ |command| (|shoeLisp?| |$ln|))
(COND
((AND |command| (PLUSP (LENGTH |command|)))
(COND
((CHAR= (SCHAR |command| 0) (|char| '|;|))
(|shoeAccumulateLines| |$r| |string|))
((SETQ |a| (|charPosition| (|char| '|;|) |command| 0))
(|shoeAccumulateLines| |$r|
(CONCAT |string|
(|subString| |command| 0
(- |a| 1)))))
(T (|shoeAccumulateLines| |$r| (CONCAT |string| |command|)))))
(T (|shoeAccumulateLines| |$r| |string|))))
(T (CONS |s| |string|)))))
(DEFUN |shoeCloser| (|t|)
(|symbolMember?| (|shoeKeyWord| |t|) '(CPAREN CBRACK)))
(DEFUN |shoeToken| ()
(LET* (|b| |ch| |n| |linepos|)
(DECLARE (SPECIAL |$ln| |$n| |$linepos|))
(PROGN
(SETQ |linepos| |$linepos|)
(SETQ |n| |$n|)
(SETQ |ch| (SCHAR |$ln| |$n|))
(SETQ |b|
(COND ((|shoeStartsComment|) (|shoeComment|) NIL)
((|shoeStartsNegComment|) (|shoeNegComment|) NIL)
((CHAR= |ch| (|char| '!)) (|shoeLispEscape|))
((|shoePunctuation| (CHAR-CODE |ch|)) (|shoePunct|))
((|shoeStartsId| |ch|) (|shoeWord| NIL))
((CHAR= |ch| (|char| '| |)) (|shoeSpace|) NIL)
((CHAR= |ch| (|char| '|"|)) (|shoeString|))
((DIGIT-CHAR-P |ch|) (|shoeNumber|))
((CHAR= |ch| (|char| '_)) (|shoeEscape|))
((EQUAL |ch| |shoeTAB|) (SETQ |$n| (+ |$n| 1)) NIL)
(T (|shoeError|))))
(COND ((NULL |b|) NIL) (T (|dqUnit| (|makeToken| |linepos| |b| |n|)))))))
(DEFUN |shoeLeafId| (|x|) (LIST 'ID (INTERN |x|)))
(DEFUN |shoeLeafKey| (|x|) (LIST 'KEY (|shoeKeyWord| |x|)))
(DEFUN |shoeLeafInteger| (|x|) (LIST 'INTEGER (|shoeIntValue| |x|)))
(DEFUN |shoeLeafFloat| (|a| |w| |e|)
(LET* (|c| |b|)
(PROGN
(SETQ |b| (|shoeIntValue| (CONCAT |a| |w|)))
(SETQ |c| (* (|double| |b|) (EXPT (|double| 10) (- |e| (LENGTH |w|)))))
(LIST 'FLOAT |c|))))
(DEFUN |shoeLeafString| (|x|) (LIST 'STRING |x|))
(DEFUN |shoeLeafLisp| (|x|) (LIST 'LISP |x|))
(DEFUN |shoeLeafLispExp| (|x|) (LIST 'LISPEXP |x|))
(DEFUN |shoeLeafLine| (|x|) (LIST 'LINE |x|))
(DEFUN |shoeLeafComment| (|x|) (LIST 'COMMENT |x|))
(DEFUN |shoeLeafNegComment| (|x|) (LIST 'NEGCOMMENT |x|))
(DEFUN |shoeLeafError| (|x|) (LIST 'ERROR |x|))
(DEFUN |shoeLeafSpaces| (|x|) (LIST 'SPACES |x|))
(DEFUN |shoeLispEscape| ()
(LET* (|n| |exp| |a|)
(DECLARE (SPECIAL |$ln| |$linepos| |$sz| |$n|))
(PROGN
(SETQ |$n| (+ |$n| 1))
(COND
((NOT (< |$n| |$sz|))
(|SoftShoeError| (CONS |$linepos| |$n|) "lisp escape error")
(|shoeLeafError| (SCHAR |$ln| |$n|)))
(T (SETQ |a| (|shoeReadLispString| |$ln| |$n|))
(COND
((NULL |a|)
(|SoftShoeError| (CONS |$linepos| |$n|) "lisp escape error")
(|shoeLeafError| (SCHAR |$ln| |$n|)))
(T (SETQ |exp| (CAR |a|)) (SETQ |n| (CADR |a|))
(COND ((NULL |n|) (SETQ |$n| |$sz|) (|shoeLeafLispExp| |exp|))
(T (SETQ |$n| |n|) (|shoeLeafLispExp| |exp|))))))))))
(DEFUN |shoeEscape| ()
(DECLARE (SPECIAL |$n|))
(PROGN (SETQ |$n| (+ |$n| 1)) (COND ((|shoeEsc|) (|shoeWord| T)) (T NIL))))
(DEFUN |shoeEsc| ()
(LET* (|n1|)
(DECLARE (SPECIAL |$ln| |$r| |$sz| |$n|))
(COND
((NOT (< |$n| |$sz|))
(COND
((|shoeNextLine| |$r|)
(LOOP (COND (|$n| (RETURN NIL)) (T (|shoeNextLine| |$r|)))) (|shoeEsc|)
NIL)
(T NIL)))
(T (SETQ |n1| (|firstNonblankPosition| |$ln| |$n|))
(COND
((NULL |n1|) (|shoeNextLine| |$r|)
(LOOP (COND (|$n| (RETURN NIL)) (T (|shoeNextLine| |$r|)))) (|shoeEsc|)
NIL)
(T T))))))
(DEFUN |shoeStartsComment| ()
(LET* (|www|)
(DECLARE (SPECIAL |$ln| |$sz| |$n|))
(COND
((< |$n| |$sz|)
(COND
((CHAR= (SCHAR |$ln| |$n|) (|char| '+)) (SETQ |www| (+ |$n| 1))
(COND ((NOT (< |www| |$sz|)) NIL)
(T (CHAR= (SCHAR |$ln| |www|) (|char| '+)))))
(T NIL)))
(T NIL))))
(DEFUN |shoeStartsNegComment| ()
(LET* (|www|)
(DECLARE (SPECIAL |$ln| |$sz| |$n|))
(COND
((< |$n| |$sz|)
(COND
((CHAR= (SCHAR |$ln| |$n|) (|char| '-)) (SETQ |www| (+ |$n| 1))
(COND ((NOT (< |www| |$sz|)) NIL)
(T (CHAR= (SCHAR |$ln| |www|) (|char| '-)))))
(T NIL)))
(T NIL))))
(DEFUN |shoeNegComment| ()
(LET* (|n|)
(DECLARE (SPECIAL |$ln| |$sz| |$n|))
(PROGN
(SETQ |n| |$n|)
(SETQ |$n| |$sz|)
(|shoeLeafNegComment| (|subString| |$ln| |n|)))))
(DEFUN |shoeComment| ()
(LET* (|n|)
(DECLARE (SPECIAL |$ln| |$sz| |$n|))
(PROGN
(SETQ |n| |$n|)
(SETQ |$n| |$sz|)
(|shoeLeafComment| (|subString| |$ln| |n|)))))
(DEFUN |shoePunct| ()
(LET* (|sss|)
(DECLARE (SPECIAL |$n| |$ln|))
(PROGN
(SETQ |sss| (|shoeMatch| |$ln| |$n|))
(SETQ |$n| (+ |$n| (LENGTH |sss|)))
(|shoeKeyTr| |sss|))))
(DEFUN |shoeKeyTr| (|w|)
(DECLARE (SPECIAL |$floatok|))
(COND
((EQ (|shoeKeyWord| |w|) 'DOT)
(COND (|$floatok| (|shoePossFloat| |w|)) (T (|shoeLeafKey| |w|))))
(T (SETQ |$floatok| (NOT (|shoeCloser| |w|))) (|shoeLeafKey| |w|))))
(DEFUN |shoePossFloat| (|w|)
(DECLARE (SPECIAL |$ln| |$sz| |$n|))
(COND
((OR (NOT (< |$n| |$sz|)) (NOT (DIGIT-CHAR-P (SCHAR |$ln| |$n|))))
(|shoeLeafKey| |w|))
(T (SETQ |w| (|shoeInteger|)) (|shoeExponent| "0" |w|))))
(DEFUN |shoeSpace| ()
(LET* (|n|)
(DECLARE (SPECIAL |$floatok| |$ln| |$n|))
(PROGN
(SETQ |n| |$n|)
(SETQ |$n| (|firstNonblankPosition| |$ln| |$n|))
(SETQ |$floatok| T)
(COND ((NULL |$n|) (|shoeLeafSpaces| 0) (SETQ |$n| (LENGTH |$ln|)))
(T (|shoeLeafSpaces| (- |$n| |n|)))))))
(DEFUN |shoeString| ()
(DECLARE (SPECIAL |$floatok| |$n|))
(PROGN
(SETQ |$n| (+ |$n| 1))
(SETQ |$floatok| NIL)
(|shoeLeafString| (|shoeS|))))
(DEFUN |shoeS| ()
(LET* (|b| |a| |str| |mn| |escsym| |strsym| |n|)
(DECLARE (SPECIAL |$ln| |$linepos| |$sz| |$n|))
(COND
((NOT (< |$n| |$sz|))
(|SoftShoeError| (CONS |$linepos| |$n|) "quote added") "")
(T (SETQ |n| |$n|)
(SETQ |strsym| (OR (|charPosition| (|char| '|"|) |$ln| |$n|) |$sz|))
(SETQ |escsym| (OR (|charPosition| (|char| '_) |$ln| |$n|) |$sz|))
(SETQ |mn| (MIN |strsym| |escsym|))
(COND
((EQUAL |mn| |$sz|) (SETQ |$n| |$sz|)
(|SoftShoeError| (CONS |$linepos| |$n|) "quote added")
(|subString| |$ln| |n|))
((EQUAL |mn| |strsym|) (SETQ |$n| (+ |mn| 1))
(|subString| |$ln| |n| (- |mn| |n|)))
(T (SETQ |str| (|subString| |$ln| |n| (- |mn| |n|)))
(SETQ |$n| (+ |mn| 1)) (SETQ |a| (|shoeEsc|))
(SETQ |b|
(COND
(|a| (SETQ |str| (CONCAT |str| (STRING (SCHAR |$ln| |$n|))))
(SETQ |$n| (+ |$n| 1)) (|shoeS|))
(T (|shoeS|))))
(CONCAT |str| |b|)))))))
(DEFUN |shoeIdEnd| (|line| |n|)
(PROGN
(LOOP
(COND
((NOT (AND (< |n| (LENGTH |line|)) (|shoeIdChar| (SCHAR |line| |n|))))
(RETURN NIL))
(T (SETQ |n| (+ |n| 1)))))
|n|))
(DEFUN |shoeW| (|b|)
(LET* (|bb| |a| |str| |endid| |l| |n1|)
(DECLARE (SPECIAL |$ln| |$sz| |$n|))
(PROGN
(SETQ |n1| |$n|)
(SETQ |$n| (+ |$n| 1))
(SETQ |l| |$sz|)
(SETQ |endid| (|shoeIdEnd| |$ln| |$n|))
(COND
((OR (EQUAL |endid| |l|) (NOT (CHAR= (SCHAR |$ln| |endid|) (|char| '_))))
(SETQ |$n| |endid|)
(LIST |b| (|subString| |$ln| |n1| (- |endid| |n1|))))
(T (SETQ |str| (|subString| |$ln| |n1| (- |endid| |n1|)))
(SETQ |$n| (+ |endid| 1)) (SETQ |a| (|shoeEsc|))
(SETQ |bb| (COND (|a| (|shoeW| T)) (T (LIST |b| ""))))
(LIST (OR (ELT |bb| 0) |b|) (CONCAT |str| (ELT |bb| 1))))))))
(DEFUN |shoeWord| (|esp|)
(LET* (|w| |aaa|)
(DECLARE (SPECIAL |$floatok|))
(PROGN
(SETQ |aaa| (|shoeW| NIL))
(SETQ |w| (ELT |aaa| 1))
(SETQ |$floatok| NIL)
(COND ((OR |esp| (ELT |aaa| 0)) (|shoeLeafId| |w|))
((|shoeKeyWordP| |w|) (SETQ |$floatok| T) (|shoeLeafKey| |w|))
(T (|shoeLeafId| |w|))))))
(DEFUN |shoeInteger| () (|shoeInteger1| NIL))
(DEFUN |shoeInteger1| (|zro|)
(LET* (|bb| |a| |str| |l| |n|)
(DECLARE (SPECIAL |$ln| |$sz| |$n|))
(PROGN
(SETQ |n| |$n|)
(SETQ |l| |$sz|)
(LOOP
(COND
((NOT (AND (< |$n| |l|) (DIGIT-CHAR-P (SCHAR |$ln| |$n|))))
(RETURN NIL))
(T (SETQ |$n| (+ |$n| 1)))))
(COND
((OR (EQUAL |$n| |l|) (NOT (CHAR= (SCHAR |$ln| |$n|) (|char| '_))))
(COND ((AND (EQUAL |n| |$n|) |zro|) "0")
(T (|subString| |$ln| |n| (- |$n| |n|)))))
(T (SETQ |str| (|subString| |$ln| |n| (- |$n| |n|)))
(SETQ |$n| (+ |$n| 1)) (SETQ |a| (|shoeEsc|))
(SETQ |bb| (|shoeInteger1| |zro|)) (CONCAT |str| |bb|))))))
(DEFUN |shoeIntValue| (|s|)
(LET* (|d| |ival| |ns|)
(PROGN
(SETQ |ns| (LENGTH |s|))
(SETQ |ival| 0)
(LET ((|bfVar#1| (- |ns| 1)) (|i| 0))
(LOOP
(COND ((> |i| |bfVar#1|) (RETURN NIL))
(T (SETQ |d| (DIGIT-CHAR-P (SCHAR |s| |i|)))
(SETQ |ival| (+ (* 10 |ival|) |d|))))
(SETQ |i| (+ |i| 1))))
|ival|)))
(DEFUN |shoeNumber| ()
(LET* (|w| |n| |a|)
(DECLARE (SPECIAL |$ln| |$floatok| |$sz| |$n|))
(PROGN
(SETQ |a| (|shoeInteger|))
(COND ((NOT (< |$n| |$sz|)) (|shoeLeafInteger| |a|))
((AND |$floatok| (CHAR= (SCHAR |$ln| |$n|) (|char| '|.|)))
(SETQ |n| |$n|) (SETQ |$n| (+ |$n| 1))
(COND
((AND (< |$n| |$sz|) (CHAR= (SCHAR |$ln| |$n|) (|char| '|.|)))
(SETQ |$n| |n|) (|shoeLeafInteger| |a|))
(T (SETQ |w| (|shoeInteger1| T)) (|shoeExponent| |a| |w|))))
(T (|shoeLeafInteger| |a|))))))
(DEFUN |shoeExponent| (|a| |w|)
(LET* (|c1| |e| |c| |n|)
(DECLARE (SPECIAL |$ln| |$sz| |$n|))
(COND ((NOT (< |$n| |$sz|)) (|shoeLeafFloat| |a| |w| 0))
(T (SETQ |n| |$n|) (SETQ |c| (SCHAR |$ln| |$n|))
(COND
((OR (CHAR= |c| (|char| 'E)) (CHAR= |c| (|char| '|e|)))
(SETQ |$n| (+ |$n| 1))
(COND
((NOT (< |$n| |$sz|)) (SETQ |$n| |n|)
(|shoeLeafFloat| |a| |w| 0))
((DIGIT-CHAR-P (SCHAR |$ln| |$n|)) (SETQ |e| (|shoeInteger|))
(SETQ |e| (|shoeIntValue| |e|)) (|shoeLeafFloat| |a| |w| |e|))
(T (SETQ |c1| (SCHAR |$ln| |$n|))
(COND
((OR (CHAR= |c1| (|char| '+)) (CHAR= |c1| (|char| '-)))
(SETQ |$n| (+ |$n| 1))
(COND
((NOT (< |$n| |$sz|)) (SETQ |$n| |n|)
(|shoeLeafFloat| |a| |w| 0))
((DIGIT-CHAR-P (SCHAR |$ln| |$n|)) (SETQ |e| (|shoeInteger|))
(SETQ |e| (|shoeIntValue| |e|))
(|shoeLeafFloat| |a| |w|
(COND ((CHAR= |c1| (|char| '-)) (- |e|))
(T |e|))))
(T (SETQ |$n| |n|) (|shoeLeafFloat| |a| |w| 0))))))))
(T (|shoeLeafFloat| |a| |w| 0)))))))
(DEFUN |shoeError| ()
(LET* (|n|)
(DECLARE (SPECIAL |$ln| |$linepos| |$n|))
(PROGN
(SETQ |n| |$n|)
(SETQ |$n| (+ |$n| 1))
(|SoftShoeError| (CONS |$linepos| |n|)
(CONCAT "The character whose number is "
(WRITE-TO-STRING (CHAR-CODE (SCHAR |$ln| |n|)))
" is not a Boot character"))
(|shoeLeafError| (SCHAR |$ln| |n|)))))
(DEFUN |shoeKeyWord| (|st|) (|tableValue| |shoeKeyTable| |st|))
(DEFUN |shoeKeyWordP| (|st|) (|tableValue| |shoeKeyTable| |st|))
(DEFUN |shoeMatch| (|l| |i|) (|shoeSubStringMatch| |l| |shoeDict| |i|))
(DEFUN |shoeSubStringMatch| (|l| |d| |i|)
(LET* (|eql| |ls| |s| |s1| |done| |ll| |u| |h|)
(PROGN
(SETQ |h| (CHAR-CODE (SCHAR |l| |i|)))
(SETQ |u| (ELT |d| |h|))
(SETQ |ll| (LENGTH |l|))
(SETQ |done| NIL)
(SETQ |s1| "")
(LET ((|bfVar#1| (- (LENGTH |u|) 1)) (|j| 0))
(LOOP
(COND ((OR (> |j| |bfVar#1|) |done|) (RETURN NIL))
(T (SETQ |s| (ELT |u| |j|)) (SETQ |ls| (LENGTH |s|))
(SETQ |done|
(COND ((< |ll| (+ |ls| |i|)) NIL)
(T (SETQ |eql| T)
(LET ((|bfVar#2| (- |ls| 1)) (|k| 1))
(LOOP
(COND
((OR (> |k| |bfVar#2|) (NOT |eql|))
(RETURN NIL))
(T
(SETQ |eql|
(CHAR= (SCHAR |s| |k|)
(SCHAR |l| (+ |k| |i|))))))
(SETQ |k| (+ |k| 1))))
(COND (|eql| (SETQ |s1| |s|) T) (T NIL)))))))
(SETQ |j| (+ |j| 1))))
|s1|)))
(DEFUN |shoePunctuation| (|c|) (EQL (ELT |shoePun| |c|) 1))
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