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(PROCLAIM '(OPTIMIZE SPEED))
(IMPORT-MODULE "tokens")
(IN-PACKAGE "BOOTTRAN")
(PROVIDE "includer")
(DEFUN PNAME (|x|)
(COND ((SYMBOLP |x|) (SYMBOL-NAME |x|)) ((CHARACTERP |x|) (STRING |x|))
(T NIL)))
(DEFUN |shoeNotFound| (|fn|) (PROGN (|coreError| (LIST |fn| " not found")) NIL))
(DEFUN |shoeReadLispString| (|s| |n|)
(PROG (|l|)
(RETURN
(PROGN
(SETQ |l| (LENGTH |s|))
(COND ((NOT (< |n| |l|)) NIL)
(T
(READ-FROM-STRING
(CONCAT "(" (|subString| |s| |n| (- |l| |n|)) ")"))))))))
(DEFUN |shoeConsole| (|line|) (WRITE-LINE |line| *TERMINAL-IO*))
(DEFUN |shoeSpaces| (|n|) (|makeString| |n| (|char| '|.|)))
(DEFUN |diagnosticLocation| (|tok|)
(PROG (|pos|)
(RETURN
(PROGN
(SETQ |pos| (|shoeTokPosn| |tok|))
(CONCAT "line " (WRITE-TO-STRING (|lineNo| |pos|)) ", column "
(WRITE-TO-STRING (|lineCharacter| |pos|)))))))
(DEFUN |SoftShoeError| (|posn| |key|)
(PROGN
(|coreError| (LIST "in line " (WRITE-TO-STRING (|lineNo| |posn|))))
(|shoeConsole| (|lineString| |posn|))
(|shoeConsole| (CONCAT (|shoeSpaces| (|lineCharacter| |posn|)) "|"))
(|shoeConsole| |key|)))
(DEFUN |bpSpecificErrorAtToken| (|tok| |key|)
(PROG (|a|)
(RETURN
(PROGN (SETQ |a| (|shoeTokPosn| |tok|)) (|SoftShoeError| |a| |key|)))))
(DEFUN |bpSpecificErrorHere| (|key|)
(DECLARE (SPECIAL |$stok|))
(|bpSpecificErrorAtToken| |$stok| |key|))
(DEFUN |bpGeneralErrorHere| () (|bpSpecificErrorHere| "syntax error"))
(DEFUN |bpIgnoredFromTo| (|pos1| |pos2|)
(PROGN
(|shoeConsole|
(CONCAT "ignored from line " (WRITE-TO-STRING (|lineNo| |pos1|))))
(|shoeConsole| (|lineString| |pos1|))
(|shoeConsole| (CONCAT (|shoeSpaces| (|lineCharacter| |pos1|)) "|"))
(|shoeConsole|
(CONCAT "ignored through line " (WRITE-TO-STRING (|lineNo| |pos2|))))
(|shoeConsole| (|lineString| |pos2|))
(|shoeConsole| (CONCAT (|shoeSpaces| (|lineCharacter| |pos2|)) "|"))))
(DEFUN |lineNo| (|p|) (CDAAR |p|))
(DEFUN |lineString| (|p|) (CAAAR |p|))
(DEFUN |lineCharacter| (|p|) (CDR |p|))
(DEFCONSTANT |$bStreamNil| (LIST '|nullstream|))
(DEFUN |bStreamNull| (|x|)
(PROG (|st| |args| |op| |ISTMP#1|)
(RETURN
(COND ((OR (NULL |x|) (AND (CONSP |x|) (EQ (CAR |x|) '|nullstream|))) T)
(T
(LOOP
(COND
((NOT
(AND (CONSP |x|) (EQ (CAR |x|) '|nonnullstream|)
(PROGN
(SETQ |ISTMP#1| (CDR |x|))
(AND (CONSP |ISTMP#1|)
(PROGN
(SETQ |op| (CAR |ISTMP#1|))
(SETQ |args| (CDR |ISTMP#1|))
T)))))
(RETURN NIL))
(T (SETQ |st| (APPLY |op| |args|)) (RPLACA |x| (CAR |st|))
(RPLACD |x| (CDR |st|)))))
(AND (CONSP |x|) (EQ (CAR |x|) '|nullstream|)))))))
(DEFUN |bMap| (|f| |x|) (|bDelay| #'|bMap1| (LIST |f| |x|)))
(DEFUN |bMap1| (|f| |x|)
(COND ((|bStreamNull| |x|) |$bStreamNil|)
(T (CONS (APPLY |f| (LIST (CAR |x|))) (|bMap| |f| (CDR |x|))))))
(DEFUN |bDelay| (|f| |x|) (CONS '|nonnullstream| (CONS |f| |x|)))
(DEFUN |bAppend| (|x| |y|) (|bDelay| #'|bAppend1| (LIST |x| |y|)))
(DEFUN |bAppend1| (|x| |y|)
(COND
((|bStreamNull| |x|)
(COND ((|bStreamNull| |y|) (LIST '|nullstream|)) (T |y|)))
(T (CONS (CAR |x|) (|bAppend| (CDR |x|) |y|)))))
(DEFUN |bNext| (|f| |s|) (|bDelay| #'|bNext1| (LIST |f| |s|)))
(DEFUN |bNext1| (|f| |s|)
(PROG (|h|)
(RETURN
(COND ((|bStreamNull| |s|) (LIST '|nullstream|))
(T (SETQ |h| (APPLY |f| (LIST |s|)))
(|bAppend| (CAR |h|) (|bNext| |f| (CDR |h|))))))))
(DEFUN |bRgen| (|s|) (|bDelay| #'|bRgen1| (LIST |s|)))
(DEFUN |bRgen1| (|s|)
(PROG (|a|)
(RETURN
(PROGN
(SETQ |a| (|readLine| |s|))
(COND ((NOT (EQ |a| |%nothing|)) (CONS |a| (|bRgen| |s|)))
(T (LIST '|nullstream|)))))))
(DEFUN |bIgen| (|n|) (|bDelay| #'|bIgen1| (LIST |n|)))
(DEFUN |bIgen1| (|n|) (PROGN (SETQ |n| (+ |n| 1)) (CONS |n| (|bIgen| |n|))))
(DEFUN |bAddLineNumber| (|f1| |f2|)
(|bDelay| #'|bAddLineNumber1| (LIST |f1| |f2|)))
(DEFUN |bAddLineNumber1| (|f1| |f2|)
(COND ((|bStreamNull| |f1|) (LIST '|nullstream|))
((|bStreamNull| |f2|) (LIST '|nullstream|))
(T
(CONS (CONS (CAR |f1|) (CAR |f2|))
(|bAddLineNumber| (CDR |f1|) (CDR |f2|))))))
(DEFUN |shoePrefixLisp| (|x|) (CONCAT ")lisp" |x|))
(DEFUN |shoePrefixLine| (|x|) (CONCAT ")line" |x|))
(DEFUN |shoePrefix?| (|prefix| |whole|)
(PROG (|good|)
(RETURN
(COND ((< (LENGTH |whole|) (LENGTH |prefix|)) NIL)
(T (SETQ |good| T)
(LET ((|bfVar#1| (- (LENGTH |prefix|) 1)) (|i| 0) (|j| 0))
(LOOP
(COND ((OR (> |i| |bfVar#1|) (NOT |good|)) (RETURN NIL))
(T
(SETQ |good|
(CHAR= (SCHAR |prefix| |i|)
(SCHAR |whole| |j|)))))
(SETQ |i| (+ |i| 1))
(SETQ |j| (+ |j| 1))))
(COND (|good| (|subString| |whole| (LENGTH |prefix|)))
(T |good|)))))))
(DEFUN |shoePlainLine?| (|s|)
(COND ((EQL (LENGTH |s|) 0) T) (T (NOT (CHAR= (SCHAR |s| 0) (|char| '|)|))))))
(DEFUN |shoeSay?| (|s|) (|shoePrefix?| ")say" |s|))
(DEFUN |shoeEval?| (|s|) (|shoePrefix?| ")eval" |s|))
(DEFUN |shoeFin?| (|s|) (|shoePrefix?| ")fin" |s|))
(DEFUN |shoeIf?| (|s|) (|shoePrefix?| ")if" |s|))
(DEFUN |shoeEndIf?| (|s|) (|shoePrefix?| ")endif" |s|))
(DEFUN |shoeElse?| (|s|) (|shoePrefix?| ")else" |s|))
(DEFUN |shoeElseIf?| (|s|) (|shoePrefix?| ")elseif" |s|))
(DEFUN |shoeLisp?| (|s|) (|shoePrefix?| ")lisp" |s|))
(DEFUN |shoeLine?| (|s|) (|shoePrefix?| ")line" |s|))
(DEFUN |shoeInclude| (|s|) (|bDelay| #'|shoeInclude1| (LIST |s|)))
(DEFUN |shoeInclude1| (|s|)
(PROG (|command| |string| |t| |h|)
(RETURN
(COND ((|bStreamNull| |s|) |s|)
(T (SETQ |h| (CAR |s|)) (SETQ |t| (CDR |s|))
(SETQ |string| (CAR |h|))
(COND ((SETQ |command| (|shoeFin?| |string|)) |$bStreamNil|)
((SETQ |command| (|shoeIf?| |string|))
(|shoeThen| (LIST T) (LIST (STTOMC |command|)) |t|))
(T
(|bAppend| (|shoeSimpleLine| |h|) (|shoeInclude| |t|)))))))))
(DEFUN |shoeSimpleLine| (|h|)
(PROG (|command| |string|)
(RETURN
(PROGN
(SETQ |string| (CAR |h|))
(COND ((|shoePlainLine?| |string|) (LIST |h|))
((SETQ |command| (|shoeLisp?| |string|)) (LIST |h|))
((SETQ |command| (|shoeLine?| |string|)) (LIST |h|))
((SETQ |command| (|shoeSay?| |string|)) (|shoeConsole| |command|)
NIL)
((SETQ |command| (|shoeEval?| |string|)) (STTOMC |command|) NIL)
(T (|shoeLineSyntaxError| |h|) NIL))))))
(DEFUN |shoeThen| (|keep| |b| |s|)
(|bDelay| #'|shoeThen1| (LIST |keep| |b| |s|)))
(DEFUN |shoeThen1| (|keep| |b| |s|)
(PROG (|b1| |keep1| |command| |string| |t| |h|)
(RETURN
(COND ((|bPremStreamNull| |s|) |s|)
(T (SETQ |h| (CAR |s|)) (SETQ |t| (CDR |s|))
(SETQ |string| (CAR |h|))
(COND
((SETQ |command| (|shoeFin?| |string|)) (|bPremStreamNil| |h|))
(T (SETQ |keep1| (CAR |keep|)) (SETQ |b1| (CAR |b|))
(COND
((SETQ |command| (|shoeIf?| |string|))
(COND
((AND |keep1| |b1|)
(|shoeThen| (CONS T |keep|) (CONS (STTOMC |command|) |b|)
|t|))
(T (|shoeThen| (CONS NIL |keep|) (CONS NIL |b|) |t|))))
((SETQ |command| (|shoeElseIf?| |string|))
(COND
((AND |keep1| (NOT |b1|))
(|shoeThen| (CONS T (CDR |keep|))
(CONS (STTOMC |command|) (CDR |b|)) |t|))
(T
(|shoeThen| (CONS NIL (CDR |keep|)) (CONS NIL (CDR |b|))
|t|))))
((SETQ |command| (|shoeElse?| |string|))
(COND
((AND |keep1| (NOT |b1|))
(|shoeElse| (CONS T (CDR |keep|)) (CONS T (CDR |b|)) |t|))
(T
(|shoeElse| (CONS NIL (CDR |keep|)) (CONS NIL (CDR |b|))
|t|))))
((SETQ |command| (|shoeEndIf?| |string|))
(COND ((NULL (CDR |b|)) (|shoeInclude| |t|))
(T (|shoeThen| (CDR |keep|) (CDR |b|) |t|))))
((AND |keep1| |b1|)
(|bAppend| (|shoeSimpleLine| |h|) (|shoeThen| |keep| |b| |t|)))
(T (|shoeThen| |keep| |b| |t|))))))))))
(DEFUN |shoeElse| (|keep| |b| |s|)
(|bDelay| #'|shoeElse1| (LIST |keep| |b| |s|)))
(DEFUN |shoeElse1| (|keep| |b| |s|)
(PROG (|keep1| |b1| |command| |string| |t| |h|)
(RETURN
(COND ((|bPremStreamNull| |s|) |s|)
(T (SETQ |h| (CAR |s|)) (SETQ |t| (CDR |s|))
(SETQ |string| (CAR |h|))
(COND
((SETQ |command| (|shoeFin?| |string|)) (|bPremStreamNil| |h|))
(T (SETQ |b1| (CAR |b|)) (SETQ |keep1| (CAR |keep|))
(COND
((SETQ |command| (|shoeIf?| |string|))
(COND
((AND |keep1| |b1|)
(|shoeThen| (CONS T |keep|) (CONS (STTOMC |command|) |b|)
|t|))
(T (|shoeThen| (CONS NIL |keep|) (CONS NIL |b|) |t|))))
((SETQ |command| (|shoeEndIf?| |string|))
(COND ((NULL (CDR |b|)) (|shoeInclude| |t|))
(T (|shoeThen| (CDR |keep|) (CDR |b|) |t|))))
((AND |keep1| |b1|)
(|bAppend| (|shoeSimpleLine| |h|) (|shoeElse| |keep| |b| |t|)))
(T (|shoeElse| |keep| |b| |t|))))))))))
(DEFUN |shoeLineSyntaxError| (|h|)
(PROGN
(|shoeConsole|
(CONCAT "INCLUSION SYNTAX ERROR IN LINE " (WRITE-TO-STRING (CDR |h|))))
(|shoeConsole| (CAR |h|))
(|shoeConsole| "LINE IGNORED")))
(DEFUN |bPremStreamNil| (|h|)
(PROGN
(|shoeConsole|
(CONCAT "UNEXPECTED )fin IN LINE " (WRITE-TO-STRING (CDR |h|))))
(|shoeConsole| (CAR |h|))
(|shoeConsole| "REST OF FILE IGNORED")
|$bStreamNil|))
(DEFUN |bPremStreamNull| (|s|)
(COND ((|bStreamNull| |s|) (|shoeConsole| "FILE TERMINATED BEFORE )endif") T)
(T NIL)))
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