(PROCLAIM '(OPTIMIZE SPEED))
(IMPORT-MODULE "includer")

(IMPORT-MODULE "scanner")

(IMPORT-MODULE "ast")

(IN-PACKAGE "BOOTTRAN")

(PROVIDE "parser")

(DEFUN |bpFirstToken| ()
  (DECLARE (SPECIAL |$ttok| |$stok| |$inputStream|))
  (PROGN
    (SETQ |$stok|
          (COND
            ((NULL |$inputStream|)
             (|shoeTokConstruct| 'ERROR 'NOMORE
                 (|shoeTokPosn| |$stok|)))
            (T (CAR |$inputStream|))))
    (SETQ |$ttok| (|shoeTokPart| |$stok|))
    T))

(DEFUN |bpFirstTok| ()
  (DECLARE (SPECIAL |$bpCount| |$bpParenCount| |$ttok| |$stok|
                    |$inputStream|))
  (PROGN
    (SETQ |$stok|
          (COND
            ((NULL |$inputStream|)
             (|shoeTokConstruct| 'ERROR 'NOMORE
                 (|shoeTokPosn| |$stok|)))
            (T (CAR |$inputStream|))))
    (SETQ |$ttok| (|shoeTokPart| |$stok|))
    (COND
      ((AND (PLUSP |$bpParenCount|) (CONSP |$stok|)
            (EQ (CAR |$stok|) 'KEY))
       (COND
         ((EQ |$ttok| 'SETTAB) (SETQ |$bpCount| (+ |$bpCount| 1))
          (|bpNext|))
         ((EQ |$ttok| 'BACKTAB) (SETQ |$bpCount| (- |$bpCount| 1))
          (|bpNext|))
         ((EQ |$ttok| 'BACKSET) (|bpNext|))
         (T T)))
      (T T))))

(DEFUN |bpNext| ()
  (DECLARE (SPECIAL |$inputStream|))
  (PROGN (SETQ |$inputStream| (CDR |$inputStream|)) (|bpFirstTok|)))

(DEFUN |bpNextToken| ()
  (DECLARE (SPECIAL |$inputStream|))
  (PROGN (SETQ |$inputStream| (CDR |$inputStream|)) (|bpFirstToken|)))

(DEFUN |bpState| ()
  (DECLARE (SPECIAL |$bpCount| |$bpParenCount| |$stack| |$inputStream|))
  (LIST |$inputStream| |$stack| |$bpParenCount| |$bpCount|))

(DEFUN |bpRestore| (|x|)
  (DECLARE (SPECIAL |$bpCount| |$bpParenCount| |$stack| |$inputStream|))
  (PROGN
    (SETQ |$inputStream| (CAR |x|))
    (|bpFirstToken|)
    (SETQ |$stack| (CADR |x|))
    (SETQ |$bpParenCount| (CADDR |x|))
    (SETQ |$bpCount| (CADDDR |x|))
    T))

(DEFUN |bpPush| (|x|)
  (DECLARE (SPECIAL |$stack|))
  (SETQ |$stack| (CONS |x| |$stack|)))

(DEFUN |bpPushId| ()
  (DECLARE (SPECIAL |$stack| |$ttok|))
  (SETQ |$stack| (CONS (|bfReName| |$ttok|) |$stack|)))

(DEFUN |bpPop1| ()
  (PROG (|a|)
    (DECLARE (SPECIAL |$stack|))
    (RETURN
      (PROGN
        (SETQ |a| (CAR |$stack|))
        (SETQ |$stack| (CDR |$stack|))
        |a|))))

(DEFUN |bpPop2| ()
  (PROG (|a|)
    (DECLARE (SPECIAL |$stack|))
    (RETURN
      (PROGN
        (SETQ |a| (CADR |$stack|))
        (RPLACD |$stack| (CDDR |$stack|))
        |a|))))

(DEFUN |bpPop3| ()
  (PROG (|a|)
    (DECLARE (SPECIAL |$stack|))
    (RETURN
      (PROGN
        (SETQ |a| (CADDR |$stack|))
        (RPLACD (CDR |$stack|) (CDDDR |$stack|))
        |a|))))

(DEFUN |bpIndentParenthesized| (|f|)
  (PROG (|$bpCount| |a|)
    (DECLARE (SPECIAL |$inputStream| |$bpCount| |$bpParenCount|
                      |$stok|))
    (RETURN
      (PROGN
        (SETQ |$bpCount| 0)
        (SETQ |a| |$stok|)
        (COND
          ((|bpEqPeek| 'OPAREN)
           (SETQ |$bpParenCount| (+ |$bpParenCount| 1)) (|bpNext|)
           (COND
             ((AND (APPLY |f| NIL) (|bpFirstTok|)
                   (OR (|bpEqPeek| 'CPAREN) (|bpParenTrap| |a|)))
              (SETQ |$bpParenCount| (- |$bpParenCount| 1))
              (|bpNextToken|)
              (COND
                ((EQL |$bpCount| 0) T)
                (T (SETQ |$inputStream|
                         (|append| (|bpAddTokens| |$bpCount|)
                             |$inputStream|))
                   (|bpFirstToken|)
                   (COND
                     ((EQL |$bpParenCount| 0) (|bpCancel|) T)
                     (T T)))))
             ((|bpEqPeek| 'CPAREN) (|bpPush| (|bfTuple| NIL))
              (SETQ |$bpParenCount| (- |$bpParenCount| 1))
              (|bpNextToken|) T)
             (T (|bpParenTrap| |a|))))
          (T NIL))))))

(DEFUN |bpParenthesized| (|f|)
  (PROG (|a|)
    (DECLARE (SPECIAL |$stok|))
    (RETURN
      (PROGN
        (SETQ |a| |$stok|)
        (COND
          ((|bpEqKey| 'OPAREN)
           (COND
             ((AND (APPLY |f| NIL)
                   (OR (|bpEqKey| 'CPAREN) (|bpParenTrap| |a|)))
              T)
             ((|bpEqKey| 'CPAREN) (|bpPush| (|bfTuple| NIL)) T)
             (T (|bpParenTrap| |a|))))
          (T NIL))))))

(DEFUN |bpBracket| (|f|)
  (PROG (|a|)
    (DECLARE (SPECIAL |$stok|))
    (RETURN
      (PROGN
        (SETQ |a| |$stok|)
        (COND
          ((|bpEqKey| 'OBRACK)
           (COND
             ((AND (APPLY |f| NIL)
                   (OR (|bpEqKey| 'CBRACK) (|bpBrackTrap| |a|)))
              (|bpPush| (|bfBracket| (|bpPop1|))))
             ((|bpEqKey| 'CBRACK) (|bpPush| NIL))
             (T (|bpBrackTrap| |a|))))
          (T NIL))))))

(DEFUN |bpPileBracketed| (|f|)
  (COND
    ((|bpEqKey| 'SETTAB)
     (COND
       ((|bpEqKey| 'BACKTAB) T)
       ((AND (APPLY |f| NIL) (OR (|bpEqKey| 'BACKTAB) (|bpPileTrap|)))
        (|bpPush| (|bfPile| (|bpPop1|))))
       (T NIL)))
    (T NIL)))

(DEFUN |bpListof| (|f| |str1| |g|)
  (PROG (|a|)
    (DECLARE (SPECIAL |$stack|))
    (RETURN
      (COND
        ((APPLY |f| NIL)
         (COND
           ((AND (|bpEqKey| |str1|) (OR (APPLY |f| NIL) (|bpTrap|)))
            (SETQ |a| |$stack|) (SETQ |$stack| NIL)
            (LOOP
              (COND
                ((NOT (AND (|bpEqKey| |str1|)
                           (OR (APPLY |f| NIL) (|bpTrap|))))
                 (RETURN NIL))
                (T 0)))
            (SETQ |$stack| (CONS (|reverse!| |$stack|) |a|))
            (|bpPush|
                (FUNCALL |g|
                         (CONS (|bpPop3|) (CONS (|bpPop2|) (|bpPop1|))))))
           (T T)))
        (T NIL)))))

(DEFUN |bpListofFun| (|f| |h| |g|)
  (PROG (|a|)
    (DECLARE (SPECIAL |$stack|))
    (RETURN
      (COND
        ((APPLY |f| NIL)
         (COND
           ((AND (APPLY |h| NIL) (OR (APPLY |f| NIL) (|bpTrap|)))
            (SETQ |a| |$stack|) (SETQ |$stack| NIL)
            (LOOP
              (COND
                ((NOT (AND (APPLY |h| NIL)
                           (OR (APPLY |f| NIL) (|bpTrap|))))
                 (RETURN NIL))
                (T 0)))
            (SETQ |$stack| (CONS (|reverse!| |$stack|) |a|))
            (|bpPush|
                (FUNCALL |g|
                         (CONS (|bpPop3|) (CONS (|bpPop2|) (|bpPop1|))))))
           (T T)))
        (T NIL)))))

(DEFUN |bpList| (|f| |str1|)
  (PROG (|a|)
    (DECLARE (SPECIAL |$stack|))
    (RETURN
      (COND
        ((APPLY |f| NIL)
         (COND
           ((AND (|bpEqKey| |str1|) (OR (APPLY |f| NIL) (|bpTrap|)))
            (SETQ |a| |$stack|) (SETQ |$stack| NIL)
            (LOOP
              (COND
                ((NOT (AND (|bpEqKey| |str1|)
                           (OR (APPLY |f| NIL) (|bpTrap|))))
                 (RETURN NIL))
                (T 0)))
            (SETQ |$stack| (CONS (|reverse!| |$stack|) |a|))
            (|bpPush| (CONS (|bpPop3|) (CONS (|bpPop2|) (|bpPop1|)))))
           (T (|bpPush| (LIST (|bpPop1|))))))
        (T (|bpPush| NIL))))))

(DEFUN |bpOneOrMore| (|f|)
  (PROG (|a|)
    (DECLARE (SPECIAL |$stack|))
    (RETURN
      (COND
        ((APPLY |f| NIL) (SETQ |a| |$stack|) (SETQ |$stack| NIL)
         (LOOP (COND ((NOT (APPLY |f| NIL)) (RETURN NIL)) (T 0)))
         (SETQ |$stack| (CONS (|reverse!| |$stack|) |a|))
         (|bpPush| (CONS (|bpPop2|) (|bpPop1|))))
        (T NIL)))))

(DEFUN |bpAnyNo| (|s|)
  (PROGN (LOOP (COND ((NOT (APPLY |s| NIL)) (RETURN NIL)) (T 0))) T))

(DEFUN |bpAndOr| (|keyword| |p| |f|)
  (AND (|bpEqKey| |keyword|) (OR (APPLY |p| NIL) (|bpTrap|))
       (|bpPush| (FUNCALL |f| (|bpPop1|)))))

(DEFUN |bpConditional| (|f|)
  (COND
    ((AND (|bpEqKey| 'IF) (OR (|bpWhere|) (|bpTrap|))
          (OR (|bpEqKey| 'BACKSET) T))
     (COND
       ((|bpEqKey| 'SETTAB)
        (COND
          ((|bpEqKey| 'THEN)
           (AND (OR (APPLY |f| NIL) (|bpTrap|)) (|bpElse| |f|)
                (|bpEqKey| 'BACKTAB)))
          (T (|bpMissing| 'THEN))))
       ((|bpEqKey| 'THEN)
        (AND (OR (APPLY |f| NIL) (|bpTrap|)) (|bpElse| |f|)))
       (T (|bpMissing| '|then|))))
    (T NIL)))

(DEFUN |bpElse| (|f|)
  (PROG (|a|)
    (RETURN
      (PROGN
        (SETQ |a| (|bpState|))
        (COND
          ((|bpBacksetElse|)
           (AND (OR (APPLY |f| NIL) (|bpTrap|))
                (|bpPush| (|bfIf| (|bpPop3|) (|bpPop2|) (|bpPop1|)))))
          (T (|bpRestore| |a|)
             (|bpPush| (|bfIfThenOnly| (|bpPop2|) (|bpPop1|)))))))))

(DEFUN |bpBacksetElse| ()
  (COND
    ((|bpEqKey| 'BACKSET) (|bpEqKey| 'ELSE))
    (T (|bpEqKey| 'ELSE))))

(DEFUN |bpEqPeek| (|s|)
  (DECLARE (SPECIAL |$ttok| |$stok|))
  (AND (CONSP |$stok|) (EQ (CAR |$stok|) 'KEY) (EQ |s| |$ttok|)))

(DEFUN |bpEqKey| (|s|)
  (DECLARE (SPECIAL |$ttok| |$stok|))
  (AND (CONSP |$stok|) (EQ (CAR |$stok|) 'KEY) (EQ |s| |$ttok|)
       (|bpNext|)))

(DEFUN |bpEqKeyNextTok| (|s|)
  (DECLARE (SPECIAL |$ttok| |$stok|))
  (AND (CONSP |$stok|) (EQ (CAR |$stok|) 'KEY) (EQ |s| |$ttok|)
       (|bpNextToken|)))

(DEFUN |bpPileTrap| () (|bpMissing| 'BACKTAB))

(DEFUN |bpBrackTrap| (|x|) (|bpMissingMate| '] |x|))

(DEFUN |bpParenTrap| (|x|) (|bpMissingMate| '|)| |x|))

(DEFUN |bpMissingMate| (|close| |open|)
  (PROGN
    (|bpSpecificErrorAtToken| |open| "possibly missing mate")
    (|bpMissing| |close|)))

(DEFUN |bpMissing| (|s|)
  (PROGN
    (|bpSpecificErrorHere| (CONCAT (PNAME |s|) " possibly missing"))
    (THROW :OPEN-AXIOM-CATCH-POINT
      (CONS :OPEN-AXIOM-CATCH-POINT
            (CONS '(|BootParserException|) 'TRAPPED)))))

(DEFUN |bpCompMissing| (|s|) (OR (|bpEqKey| |s|) (|bpMissing| |s|)))

(DEFUN |bpTrap| ()
  (PROGN
    (|bpGeneralErrorHere|)
    (THROW :OPEN-AXIOM-CATCH-POINT
      (CONS :OPEN-AXIOM-CATCH-POINT
            (CONS '(|BootParserException|) 'TRAPPED)))))

(DEFUN |bpRecoverTrap| ()
  (PROG (|pos2| |pos1|)
    (DECLARE (SPECIAL |$stok|))
    (RETURN
      (PROGN
        (|bpFirstToken|)
        (SETQ |pos1| (|shoeTokPosn| |$stok|))
        (|bpMoveTo| 0)
        (SETQ |pos2| (|shoeTokPosn| |$stok|))
        (|bpIgnoredFromTo| |pos1| |pos2|)
        (|bpPush| (LIST (LIST "pile syntax error")))))))

(DEFUN |bpListAndRecover| (|f|)
  (PROG (|found| |c| |done| |b| |a|)
    (DECLARE (SPECIAL |$inputStream| |$stack|))
    (RETURN
      (PROGN
        (SETQ |a| |$stack|)
        (SETQ |b| NIL)
        (SETQ |$stack| NIL)
        (SETQ |done| NIL)
        (SETQ |c| |$inputStream|)
        (LOOP
          (COND
            (|done| (RETURN NIL))
            (T (SETQ |found|
                     (LET ((#0=#:G1355
                               (CATCH :OPEN-AXIOM-CATCH-POINT
                                 (APPLY |f| NIL))))
                       (COND
                         ((AND (CONSP #0#)
                               (EQUAL (CAR #0#)
                                      :OPEN-AXIOM-CATCH-POINT))
                          (COND
                            ((EQUAL (CAR #1=(CDR #0#))
                                    '(|BootParserException|))
                             (LET ((|e| (CDR #1#))) |e|))
                            (T (THROW :OPEN-AXIOM-CATCH-POINT #0#))))
                         (T #0#))))
               (COND
                 ((EQ |found| 'TRAPPED) (SETQ |$inputStream| |c|)
                  (|bpRecoverTrap|))
                 ((NOT |found|) (SETQ |$inputStream| |c|)
                  (|bpGeneralErrorHere|) (|bpRecoverTrap|)))
               (COND
                 ((|bpEqKey| 'BACKSET) (SETQ |c| |$inputStream|))
                 ((OR (|bpEqPeek| 'BACKTAB) (NULL |$inputStream|))
                  (SETQ |done| T))
                 (T (SETQ |$inputStream| |c|) (|bpGeneralErrorHere|)
                    (|bpRecoverTrap|)
                    (COND
                      ((OR (|bpEqPeek| 'BACKTAB) (NULL |$inputStream|))
                       (SETQ |done| T))
                      (T (|bpNext|) (SETQ |c| |$inputStream|)))))
               (SETQ |b| (CONS (|bpPop1|) |b|)))))
        (SETQ |$stack| |a|)
        (|bpPush| (|reverse!| |b|))))))

(DEFUN |bpMoveTo| (|n|)
  (DECLARE (SPECIAL |$bpParenCount| |$bpCount| |$inputStream|))
  (COND
    ((NULL |$inputStream|) T)
    ((|bpEqPeek| 'BACKTAB)
     (COND
       ((EQL |n| 0) T)
       (T (|bpNextToken|) (SETQ |$bpCount| (- |$bpCount| 1))
          (|bpMoveTo| (- |n| 1)))))
    ((|bpEqPeek| 'BACKSET)
     (COND ((EQL |n| 0) T) (T (|bpNextToken|) (|bpMoveTo| |n|))))
    ((|bpEqPeek| 'SETTAB) (|bpNextToken|) (|bpMoveTo| (+ |n| 1)))
    ((|bpEqPeek| 'OPAREN) (|bpNextToken|)
     (SETQ |$bpParenCount| (+ |$bpParenCount| 1)) (|bpMoveTo| |n|))
    ((|bpEqPeek| 'CPAREN) (|bpNextToken|)
     (SETQ |$bpParenCount| (- |$bpParenCount| 1)) (|bpMoveTo| |n|))
    (T (|bpNextToken|) (|bpMoveTo| |n|))))

(DEFUN |bpQualifiedName| ()
  (DECLARE (SPECIAL |$stok|))
  (COND
    ((|bpEqPeek| 'COLON-COLON) (|bpNext|)
     (AND (CONSP |$stok|) (EQ (CAR |$stok|) 'ID) (|bpPushId|)
          (|bpNext|) (|bpPush| (|bfColonColon| (|bpPop2|) (|bpPop1|)))))
    (T NIL)))

(DEFUN |bpName| ()
  (DECLARE (SPECIAL |$stok|))
  (COND
    ((AND (CONSP |$stok|) (EQ (CAR |$stok|) 'ID)) (|bpPushId|)
     (|bpNext|) (|bpAnyNo| #'|bpQualifiedName|))
    (T NIL)))

(DEFUN |bpConstTok| ()
  (DECLARE (SPECIAL |$ttok| |$stok|))
  (COND
    ((|symbolMember?| (|shoeTokType| |$stok|) '(INTEGER FLOAT))
     (|bpPush| |$ttok|) (|bpNext|))
    ((AND (CONSP |$stok|) (EQ (CAR |$stok|) 'LISP))
     (AND (|bpPush| (|%Lisp| |$ttok|)) (|bpNext|)))
    ((AND (CONSP |$stok|) (EQ (CAR |$stok|) 'LISPEXP))
     (AND (|bpPush| |$ttok|) (|bpNext|)))
    ((AND (CONSP |$stok|) (EQ (CAR |$stok|) 'LINE))
     (AND (|bpPush| (LIST '+LINE |$ttok|)) (|bpNext|)))
    ((|bpEqPeek| 'QUOTE) (|bpNext|)
     (AND (OR (|bpSexp|) (|bpTrap|))
          (|bpPush| (|bfSymbol| (|bpPop1|)))))
    (T (|bpString|))))

(DEFUN |bpExportItemTail| ()
  (OR (AND (|bpEqKey| 'BEC) (OR (|bpAssign|) (|bpTrap|))
           (|bpPush| (|%Assignment| (|bpPop2|) (|bpPop1|))))
      (|bpSimpleDefinitionTail|)))

(DEFUN |bpExportItem| ()
  (PROG (|a|)
    (RETURN
      (COND
        ((|bpEqPeek| 'STRUCTURE) (|bpStruct|))
        (T (SETQ |a| (|bpState|))
           (COND
             ((|bpName|)
              (COND
                ((|bpEqPeek| 'COLON) (|bpRestore| |a|)
                 (OR (|bpSignature|) (|bpTrap|))
                 (OR (|bpExportItemTail|) T))
                (T (|bpRestore| |a|) (|bpTypeAliasDefition|))))
             (T NIL)))))))

(DEFUN |bpExportItemList| () (|bpListAndRecover| #'|bpExportItem|))

(DEFUN |bpModuleInterface| ()
  (COND
    ((|bpEqKey| 'WHERE)
     (OR (|bpPileBracketed| #'|bpExportItemList|)
         (AND (|bpExportItem|) (|bpPush| (LIST (|bpPop1|))))
         (|bpTrap|)))
    (T (|bpPush| NIL))))

(DEFUN |bpModuleExports| ()
  (COND
    ((|bpParenthesized| #'|bpIdList|)
     (|bpPush| (|bfUntuple| (|bpPop1|))))
    (T (|bpPush| NIL))))

(DEFUN |bpModule| ()
  (COND
    ((|bpEqKey| 'MODULE) (OR (|bpName|) (|bpTrap|)) (|bpModuleExports|)
     (|bpModuleInterface|)
     (|bpPush| (|%Module| (|bpPop3|) (|bpPop2|) (|bpPop1|))))
    (T NIL)))

(DEFUN |bpImport| ()
  (PROG (|a|)
    (RETURN
      (COND
        ((|bpEqKey| 'IMPORT)
         (COND
           ((|bpNamespace|) (|bpPush| (|%Import| (|bpPop1|))))
           (T (SETQ |a| (|bpState|)) (OR (|bpName|) (|bpTrap|))
              (COND
                ((|bpEqPeek| 'COLON) (|bpRestore| |a|)
                 (AND (OR (|bpSignature|) (|bpTrap|))
                      (OR (|bpEqKey| 'FOR) (|bpTrap|))
                      (OR (|bpName|) (|bpTrap|))
                      (|bpPush|
                          (|%ImportSignature| (|bpPop1|) (|bpPop1|)))))
                (T (|bpPush| (|%Import| (|bpPop1|))))))))
        (T NIL)))))

(DEFUN |bpNamespace| ()
  (AND (|bpEqKey| 'NAMESPACE) (OR (|bpName|) (|bpDot|))
       (|bpPush| (|bfNamespace| (|bpPop1|)))))

(DEFUN |bpTypeAliasDefition| ()
  (AND (OR (|bpTerm| #'|bpIdList|) (|bpTrap|)) (|bpEqKey| 'TDEF)
       (|bpLogical|) (|bpPush| (|%TypeAlias| (|bpPop2|) (|bpPop1|)))))

(DEFUN |bpSignature| ()
  (AND (|bpName|) (|bpEqKey| 'COLON) (|bpTyping|)
       (|bpPush| (|%Signature| (|bpPop2|) (|bpPop1|)))))

(DEFUN |bpSimpleMapping| ()
  (COND
    ((|bpApplication|)
     (AND (|bpEqKey| 'ARROW) (OR (|bpApplication|) (|bpTrap|))
          (|bpPush| (|%Mapping| (|bpPop1|) (LIST (|bpPop1|)))))
     T)
    (T NIL)))

(DEFUN |bpArgtypeList| () (|bpTuple| #'|bpApplication|))

(DEFUN |bpMapping| ()
  (AND (|bpParenthesized| #'|bpArgtypeList|) (|bpEqKey| 'ARROW)
       (|bpApplication|)
       (|bpPush| (|%Mapping| (|bpPop1|) (|bfUntuple| (|bpPop1|))))))

(DEFUN |bpCancel| ()
  (PROG (|a|)
    (RETURN
      (PROGN
        (SETQ |a| (|bpState|))
        (COND
          ((|bpEqKeyNextTok| 'SETTAB)
           (COND
             ((|bpCancel|)
              (COND
                ((|bpEqKeyNextTok| 'BACKTAB) T)
                (T (|bpRestore| |a|) NIL)))
             ((|bpEqKeyNextTok| 'BACKTAB) T)
             (T (|bpRestore| |a|) NIL)))
          (T NIL))))))

(DEFUN |bpAddTokens| (|n|)
  (DECLARE (SPECIAL |$stok|))
  (COND
    ((EQL |n| 0) NIL)
    ((PLUSP |n|)
     (CONS (|shoeTokConstruct| 'KEY 'SETTAB (|shoeTokPosn| |$stok|))
           (|bpAddTokens| (- |n| 1))))
    (T (CONS (|shoeTokConstruct| 'KEY 'BACKTAB (|shoeTokPosn| |$stok|))
             (|bpAddTokens| (+ |n| 1))))))

(DEFUN |bpExceptions| ()
  (OR (|bpEqPeek| 'DOT) (|bpEqPeek| 'QUOTE) (|bpEqPeek| 'OPAREN)
      (|bpEqPeek| 'CPAREN) (|bpEqPeek| 'SETTAB) (|bpEqPeek| 'BACKTAB)
      (|bpEqPeek| 'BACKSET)))

(DEFUN |bpSexpKey| ()
  (PROG (|a|)
    (DECLARE (SPECIAL |$ttok| |$stok|))
    (RETURN
      (COND
        ((AND (CONSP |$stok|) (EQ (CAR |$stok|) 'KEY)
              (NOT (|bpExceptions|)))
         (SETQ |a| (GET |$ttok| 'SHOEINF))
         (COND
           ((NULL |a|) (AND (|bpPush| |$ttok|) (|bpNext|)))
           (T (AND (|bpPush| |a|) (|bpNext|)))))
        (T NIL)))))

(DEFUN |bpAnyId| ()
  (DECLARE (SPECIAL |$ttok| |$stok|))
  (OR (AND (|bpEqKey| 'MINUS)
           (OR (AND (CONSP |$stok|) (EQ (CAR |$stok|) 'INTEGER))
               (|bpTrap|))
           (|bpPush| (- |$ttok|)) (|bpNext|))
      (|bpSexpKey|)
      (AND (|symbolMember?| (|shoeTokType| |$stok|)
               '(ID INTEGER STRING FLOAT))
           (|bpPush| |$ttok|) (|bpNext|))))

(DEFUN |bpSexp| ()
  (OR (|bpAnyId|)
      (AND (|bpEqKey| 'QUOTE) (OR (|bpSexp|) (|bpTrap|))
           (|bpPush| (|bfSymbol| (|bpPop1|))))
      (|bpIndentParenthesized| #'|bpSexp1|)))

(DEFUN |bpSexp1| ()
  (OR (AND (|bpFirstTok|) (|bpSexp|)
           (OR (AND (|bpEqKey| 'DOT) (|bpSexp|)
                    (|bpPush| (CONS (|bpPop2|) (|bpPop1|))))
               (AND (|bpSexp1|)
                    (|bpPush| (CONS (|bpPop2|) (|bpPop1|))))))
      (|bpPush| NIL)))

(DEFUN |bpPrimary1| ()
  (OR (|bpParenthesizedApplication|) (|bpDot|) (|bpConstTok|)
      (|bpConstruct|) (|bpCase|) (|bpStruct|) (|bpPDefinition|)
      (|bpBPileDefinition|)))

(DEFUN |bpParenthesizedApplication| ()
  (AND (|bpName|) (|bpAnyNo| #'|bpArgumentList|)))

(DEFUN |bpArgumentList| ()
  (AND (|bpPDefinition|)
       (|bpPush| (|bfApplication| (|bpPop2|) (|bpPop1|)))))

(DEFUN |bpPrimary| ()
  (AND (|bpFirstTok|) (OR (|bpPrimary1|) (|bpPrefixOperator|))))

(DEFUN |bpDot| () (AND (|bpEqKey| 'DOT) (|bpPush| (|bfDot|))))

(DEFUN |bpPrefixOperator| ()
  (DECLARE (SPECIAL |$ttok| |$stok|))
  (AND (CONSP |$stok|) (EQ (CAR |$stok|) 'KEY) (GET |$ttok| 'SHOEPRE)
       (|bpPushId|) (|bpNext|)))

(DEFUN |bpInfixOperator| ()
  (DECLARE (SPECIAL |$ttok| |$stok|))
  (AND (CONSP |$stok|) (EQ (CAR |$stok|) 'KEY) (GET |$ttok| 'SHOEINF)
       (|bpPushId|) (|bpNext|)))

(DEFUN |bpSelector| ()
  (AND (|bpEqKey| 'DOT)
       (OR (AND (|bpPrimary|)
                (|bpPush| (|bfElt| (|bpPop2|) (|bpPop1|))))
           (|bpPush| (|bfSuffixDot| (|bpPop1|))))))

(DEFUN |bpApplication| ()
  (OR (AND (|bpPrimary|) (|bpAnyNo| #'|bpSelector|)
           (OR (AND (|bpApplication|)
                    (|bpPush| (|bfApplication| (|bpPop2|) (|bpPop1|))))
               T))
      (|bpNamespace|)))

(DEFUN |bpTyping| ()
  (COND
    ((|bpEqKey| 'FORALL) (OR (|bpVariable|) (|bpTrap|))
     (OR (AND (|bpDot|) (|bpPop1|)) (|bpTrap|))
     (OR (|bpTyping|) (|bpTrap|))
     (|bpPush| (|%Forall| (|bpPop2|) (|bpPop1|))))
    (T (OR (|bpMapping|) (|bpSimpleMapping|)))))

(DEFUN |bpTagged| ()
  (AND (|bpApplication|)
       (OR (AND (|bpEqKey| 'COLON) (OR (|bpTyping|) (|bpTrap|))
                (|bpPush| (|bfTagged| (|bpPop2|) (|bpPop1|))))
           T)))

(DEFUN |bpExpt| () (|bpRightAssoc| '(POWER) #'|bpTagged|))

(DEFUN |bpInfKey| (|s|)
  (DECLARE (SPECIAL |$ttok| |$stok|))
  (AND (CONSP |$stok|) (EQ (CAR |$stok|) 'KEY)
       (|symbolMember?| |$ttok| |s|) (|bpPushId|) (|bpNext|)))

(DEFUN |bpInfGeneric| (|s|)
  (AND (|bpInfKey| |s|) (OR (|bpEqKey| 'BACKSET) T)))

(DEFUN |bpRightAssoc| (|o| |p|)
  (PROG (|a|)
    (RETURN
      (PROGN
        (SETQ |a| (|bpState|))
        (COND
          ((APPLY |p| NIL)
           (LOOP
             (COND
               ((NOT (AND (|bpInfGeneric| |o|)
                          (OR (|bpRightAssoc| |o| |p|) (|bpTrap|))))
                (RETURN NIL))
               (T (|bpPush|
                      (|bfInfApplication| (|bpPop2|) (|bpPop2|)
                          (|bpPop1|))))))
           T)
          (T (|bpRestore| |a|) NIL))))))

(DEFUN |bpLeftAssoc| (|operations| |parser|)
  (COND
    ((APPLY |parser| NIL)
     (LOOP
       (COND
         ((NOT (AND (|bpInfGeneric| |operations|)
                    (OR (APPLY |parser| NIL) (|bpTrap|))))
          (RETURN NIL))
         (T (|bpPush|
                (|bfInfApplication| (|bpPop2|) (|bpPop2|) (|bpPop1|))))))
     T)
    (T NIL)))

(DEFUN |bpString| ()
  (DECLARE (SPECIAL |$ttok| |$stok|))
  (AND (EQ (|shoeTokType| |$stok|) 'STRING)
       (|bpPush| (LIST 'QUOTE (INTERN |$ttok|))) (|bpNext|)))

(DEFUN |bpThetaName| ()
  (DECLARE (SPECIAL |$ttok| |$stok|))
  (COND
    ((AND (CONSP |$stok|) (EQ (CAR |$stok|) 'ID)
          (GET |$ttok| 'SHOETHETA))
     (|bpPushId|) (|bpNext|))
    (T NIL)))

(DEFUN |bpReduceOperator| ()
  (OR (|bpInfixOperator|) (|bpString|) (|bpThetaName|)))

(DEFUN |bpReduce| ()
  (PROG (|a|)
    (RETURN
      (PROGN
        (SETQ |a| (|bpState|))
        (COND
          ((AND (|bpReduceOperator|) (|bpEqKey| 'SLASH))
           (COND
             ((|bpEqPeek| 'OBRACK)
              (AND (OR (|bpDConstruct|) (|bpTrap|))
                   (|bpPush| (|bfReduceCollect| (|bpPop2|) (|bpPop1|)))))
             (T (AND (OR (|bpApplication|) (|bpTrap|))
                     (|bpPush| (|bfReduce| (|bpPop2|) (|bpPop1|)))))))
          (T (|bpRestore| |a|) NIL))))))

(DEFUN |bpTimes| ()
  (OR (|bpReduce|) (|bpLeftAssoc| '(TIMES SLASH) #'|bpExpt|)))

(DEFUN |bpEuclid| () (|bpLeftAssoc| '(QUO REM) #'|bpTimes|))

(DEFUN |bpMinus| ()
  (OR (AND (|bpInfGeneric| '(MINUS)) (OR (|bpEuclid|) (|bpTrap|))
           (|bpPush| (|bfApplication| (|bpPop2|) (|bpPop1|))))
      (|bpEuclid|)))

(DEFUN |bpArith| () (|bpLeftAssoc| '(PLUS MINUS) #'|bpMinus|))

(DEFUN |bpIs| ()
  (AND (|bpArith|)
       (COND
         ((AND (|bpInfKey| '(IS ISNT)) (OR (|bpPattern|) (|bpTrap|)))
          (|bpPush|
              (|bfISApplication| (|bpPop2|) (|bpPop2|) (|bpPop1|))))
         ((AND (|bpEqKey| 'HAS) (OR (|bpApplication|) (|bpTrap|)))
          (|bpPush| (|bfHas| (|bpPop2|) (|bpPop1|))))
         (T T))))

(DEFUN |bpBracketConstruct| (|f|)
  (AND (|bpBracket| |f|) (|bpPush| (|bfConstruct| (|bpPop1|)))))

(DEFUN |bpCompare| ()
  (OR (AND (|bpIs|)
           (OR (AND (|bpInfKey| '(SHOEEQ SHOENE LT LE GT GE IN))
                    (OR (|bpIs|) (|bpTrap|))
                    (|bpPush|
                        (|bfInfApplication| (|bpPop2|) (|bpPop2|)
                            (|bpPop1|))))
               T))
      (|bpLeave|) (|bpThrow|)))

(DEFUN |bpAnd| () (|bpLeftAssoc| '(AND) #'|bpCompare|))

(DEFUN |bpThrow| ()
  (COND
    ((AND (|bpEqKey| 'THROW) (|bpApplication|))
     (COND
       ((|bpEqKey| 'COLON) (OR (|bpApplication|) (|bpTrap|))
        (|bpPush| (|%Pretend| (|bpPop2|) (|bpPop1|)))))
     (|bpPush| (|bfThrow| (|bpPop1|))))
    (T NIL)))

(DEFUN |bpTry| ()
  (PROG (|cs|)
    (RETURN
      (COND
        ((|bpEqKey| 'TRY) (|bpAssign|) (SETQ |cs| NIL)
         (LOOP
           (COND
             ((NOT (|bpHandler| 'CATCH)) (RETURN NIL))
             (T (|bpCatchItem|) (SETQ |cs| (CONS (|bpPop1|) |cs|)))))
         (COND
           ((|bpHandler| 'FINALLY)
            (AND (|bpFinally|)
                 (|bpPush|
                     (|bfTry| (|bpPop2|)
                              (|reverse!| (CONS (|bpPop1|) |cs|))))))
           ((NULL |cs|) (|bpTrap|))
           (T (|bpPush| (|bfTry| (|bpPop1|) (|reverse!| |cs|))))))
        (T NIL)))))

(DEFUN |bpCatchItem| ()
  (AND (OR (|bpExceptionVariable|) (|bpTrap|))
       (OR (|bpEqKey| 'EXIT) (|bpTrap|)) (OR (|bpAssign|) (|bpTrap|))
       (|bpPush| (|%Catch| (|bpPop2|) (|bpPop1|)))))

(DEFUN |bpExceptionVariable| ()
  (PROG (|t|)
    (DECLARE (SPECIAL |$stok|))
    (RETURN
      (PROGN
        (SETQ |t| |$stok|)
        (OR (AND (|bpEqKey| 'OPAREN) (OR (|bpSignature|) (|bpTrap|))
                 (OR (|bpEqKey| 'CPAREN) (|bpMissing| |t|)))
            (|bpTrap|))))))

(DEFUN |bpFinally| ()
  (AND (OR (|bpAssign|) (|bpTrap|)) (|bpPush| (|%Finally| (|bpPop1|)))))

(DEFUN |bpHandler| (|key|)
  (PROG (|s|)
    (RETURN
      (PROGN
        (SETQ |s| (|bpState|))
        (COND
          ((AND (OR (|bpEqKey| 'BACKSET) (|bpEqKey| 'SEMICOLON))
                (|bpEqKey| |key|))
           T)
          (T (|bpRestore| |s|) NIL))))))

(DEFUN |bpLeave| ()
  (AND (|bpEqKey| 'LEAVE) (OR (|bpLogical|) (|bpTrap|))
       (|bpPush| (|bfLeave| (|bpPop1|)))))

(DEFUN |bpDo| ()
  (COND
    ((|bpEqKey| 'IN) (OR (|bpNamespace|) (|bpTrap|))
     (OR (|bpDo|) (|bpTrap|))
     (|bpPush| (|bfAtScope| (|bpPop2|) (|bpPop1|))))
    (T (AND (|bpEqKey| 'DO) (OR (|bpAssign|) (|bpTrap|))
            (|bpPush| (|bfDo| (|bpPop1|)))))))

(DEFUN |bpReturn| ()
  (OR (AND (|bpEqKey| 'RETURN) (OR (|bpAssign|) (|bpTrap|))
           (|bpPush| (|bfReturnNoName| (|bpPop1|))))
      (|bpLeave|) (|bpThrow|) (|bpAnd|) (|bpDo|)))

(DEFUN |bpLogical| () (|bpLeftAssoc| '(OR) #'|bpReturn|))

(DEFUN |bpExpression| ()
  (OR (AND (|bpEqKey| 'COLON)
           (OR (AND (|bpLogical|)
                    (|bpPush| (|bfApplication| 'COLON (|bpPop1|))))
               (|bpTrap|)))
      (|bpLogical|)))

(DEFUN |bpStatement| ()
  (OR (|bpConditional| #'|bpWhere|) (|bpLoop|) (|bpExpression|)
      (|bpTry|)))

(DEFUN |bpLoop| ()
  (OR (AND (|bpIterators|) (|bpCompMissing| 'REPEAT)
           (OR (|bpWhere|) (|bpTrap|))
           (|bpPush| (|bfLp| (|bpPop2|) (|bpPop1|))))
      (AND (|bpEqKey| 'REPEAT) (OR (|bpLogical|) (|bpTrap|))
           (|bpPush| (|bfLoop1| (|bpPop1|))))))

(DEFUN |bpSuchThat| () (|bpAndOr| 'BAR #'|bpWhere| #'|bfSuchthat|))

(DEFUN |bpWhile| () (|bpAndOr| 'WHILE #'|bpLogical| #'|bfWhile|))

(DEFUN |bpUntil| () (|bpAndOr| 'UNTIL #'|bpLogical| #'|bfUntil|))

(DEFUN |bpFormal| () (OR (|bpVariable|) (|bpDot|)))

(DEFUN |bpForIn| ()
  (AND (|bpEqKey| 'FOR) (OR (|bpFormal|) (|bpTrap|))
       (|bpCompMissing| 'IN)
       (OR (AND (OR (|bpSeg|) (|bpTrap|)) (|bpEqKey| 'BY)
                (OR (|bpArith|) (|bpTrap|))
                (|bpPush|
                    (|bfForInBy| (|bpPop3|) (|bpPop2|) (|bpPop1|))))
           (|bpPush| (|bfForin| (|bpPop2|) (|bpPop1|))))))

(DEFUN |bpSeg| ()
  (AND (|bpArith|)
       (OR (AND (|bpEqKey| 'SEG)
                (OR (AND (|bpArith|)
                         (|bpPush|
                             (|bfSegment2| (|bpPop2|) (|bpPop1|))))
                    (|bpPush| (|bfSegment1| (|bpPop1|)))))
           T)))

(DEFUN |bpIterator| ()
  (OR (|bpForIn|) (|bpSuchThat|) (|bpWhile|) (|bpUntil|)))

(DEFUN |bpIteratorList| ()
  (AND (|bpOneOrMore| #'|bpIterator|)
       (|bpPush| (|bfIterators| (|bpPop1|)))))

(DEFUN |bpCrossBackSet| ()
  (AND (|bpEqKey| 'CROSS) (OR (|bpEqKey| 'BACKSET) T)))

(DEFUN |bpIterators| ()
  (|bpListofFun| #'|bpIteratorList| #'|bpCrossBackSet| #'|bfCross|))

(DEFUN |bpAssign| ()
  (PROG (|a|)
    (RETURN
      (PROGN
        (SETQ |a| (|bpState|))
        (COND
          ((|bpStatement|)
           (COND
             ((|bpEqPeek| 'BEC) (|bpRestore| |a|)
              (OR (|bpAssignment|) (|bpTrap|)))
             ((|bpEqPeek| 'GIVES) (|bpRestore| |a|)
              (OR (|bpLambda|) (|bpTrap|)))
             (T T)))
          (T (|bpRestore| |a|) NIL))))))

(DEFUN |bpAssignment| ()
  (AND (|bpAssignVariable|) (|bpEqKey| 'BEC)
       (OR (|bpAssign|) (|bpTrap|))
       (|bpPush| (|bfAssign| (|bpPop2|) (|bpPop1|)))))

(DEFUN |bpLambda| ()
  (AND (|bpVariable|) (|bpEqKey| 'GIVES) (OR (|bpAssign|) (|bpTrap|))
       (|bpPush| (|bfLambda| (|bpPop2|) (|bpPop1|)))))

(DEFUN |bpExit| ()
  (AND (|bpAssign|)
       (OR (AND (|bpEqKey| 'EXIT) (OR (|bpWhere|) (|bpTrap|))
                (|bpPush| (|bfExit| (|bpPop2|) (|bpPop1|))))
           T)))

(DEFUN |bpDefinition| ()
  (PROG (|a|)
    (RETURN
      (COND
        ((|bpEqKey| 'MACRO)
         (OR (AND (|bpName|) (|bpStoreName|)
                  (|bpCompoundDefinitionTail| #'|%Macro|))
             (|bpTrap|)))
        (T (SETQ |a| (|bpState|))
           (COND
             ((|bpExit|)
              (COND
                ((|bpEqPeek| 'DEF) (|bpRestore| |a|) (|bpDef|))
                ((|bpEqPeek| 'TDEF) (|bpRestore| |a|)
                 (|bpTypeAliasDefition|))
                (T T)))
             (T (|bpRestore| |a|) NIL)))))))

(DEFUN |bpStoreName| ()
  (DECLARE (SPECIAL |$typings| |$wheredefs| |$op| |$stack|))
  (PROGN
    (SETQ |$op| (CAR |$stack|))
    (SETQ |$wheredefs| NIL)
    (SETQ |$typings| NIL)
    T))

(DEFUN |bpDef| ()
  (AND (|bpName|) (|bpStoreName|) (|bpDefTail| #'|%Definition|)))

(DEFUN |bpDDef| () (AND (|bpName|) (|bpDefTail| #'|%Definition|)))

(DEFUN |bpSimpleDefinitionTail| ()
  (AND (|bpEqKey| 'DEF) (OR (|bpWhere|) (|bpTrap|))
       (|bpPush| (|%ConstantDefinition| (|bpPop2|) (|bpPop1|)))))

(DEFUN |bpCompoundDefinitionTail| (|f|)
  (AND (|bpVariable|) (|bpEqKey| 'DEF) (OR (|bpWhere|) (|bpTrap|))
       (|bpPush| (APPLY |f| (LIST (|bpPop3|) (|bpPop2|) (|bpPop1|))))))

(DEFUN |bpDefTail| (|f|)
  (OR (|bpSimpleDefinitionTail|) (|bpCompoundDefinitionTail| |f|)))

(DEFUN |bpWhere| ()
  (AND (|bpDefinition|)
       (OR (AND (|bpEqKey| 'WHERE) (OR (|bpDefinitionItem|) (|bpTrap|))
                (|bpPush| (|bfWhere| (|bpPop1|) (|bpPop1|))))
           T)))

(DEFUN |bpDefinitionItem| ()
  (PROG (|a|)
    (RETURN
      (PROGN
        (SETQ |a| (|bpState|))
        (COND
          ((|bpDDef|) T)
          (T (|bpRestore| |a|)
             (COND
               ((|bpBDefinitionPileItems|) T)
               (T (|bpRestore| |a|)
                  (COND
                    ((|bpPDefinitionItems|) T)
                    (T (|bpRestore| |a|) (|bpWhere|)))))))))))

(DEFUN |bpDefinitionPileItems| ()
  (AND (|bpListAndRecover| #'|bpDefinitionItem|)
       (|bpPush| (|%Pile| (|bpPop1|)))))

(DEFUN |bpBDefinitionPileItems| ()
  (|bpPileBracketed| #'|bpDefinitionPileItems|))

(DEFUN |bpSemiColonDefinition| ()
  (|bpSemiListing| #'|bpDefinitionItem| #'|%Pile|))

(DEFUN |bpPDefinitionItems| ()
  (|bpParenthesized| #'|bpSemiColonDefinition|))

(DEFUN |bpComma| ()
  (OR (|bpModule|) (|bpImport|) (|bpNamespace|)
      (|bpTuple| #'|bpWhere|)))

(DEFUN |bpTuple| (|p|)
  (|bpListofFun| |p| #'|bpCommaBackSet| #'|bfTuple|))

(DEFUN |bpCommaBackSet| ()
  (AND (|bpEqKey| 'COMMA) (OR (|bpEqKey| 'BACKSET) T)))

(DEFUN |bpSemiColon| () (|bpSemiListing| #'|bpComma| #'|bfSequence|))

(DEFUN |bpSemiListing| (|p| |f|)
  (|bpListofFun| |p| #'|bpSemiBackSet| |f|))

(DEFUN |bpSemiBackSet| ()
  (AND (|bpEqKey| 'SEMICOLON) (OR (|bpEqKey| 'BACKSET) T)))

(DEFUN |bpPDefinition| () (|bpIndentParenthesized| #'|bpSemiColon|))

(DEFUN |bpPileItems| ()
  (AND (|bpListAndRecover| #'|bpSemiColon|)
       (|bpPush| (|bfSequence| (|bpPop1|)))))

(DEFUN |bpBPileDefinition| () (|bpPileBracketed| #'|bpPileItems|))

(DEFUN |bpIteratorTail| ()
  (AND (OR (|bpEqKey| 'REPEAT) T) (|bpIterators|)))

(DEFUN |bpConstruct| () (|bpBracket| #'|bpConstruction|))

(DEFUN |bpConstruction| ()
  (AND (|bpComma|)
       (OR (AND (|bpIteratorTail|)
                (|bpPush| (|bfCollect| (|bpPop2|) (|bpPop1|))))
           (|bpPush| (|bfTupleConstruct| (|bpPop1|))))))

(DEFUN |bpDConstruct| () (|bpBracket| #'|bpDConstruction|))

(DEFUN |bpDConstruction| ()
  (AND (|bpComma|)
       (OR (AND (|bpIteratorTail|)
                (|bpPush| (|bfDCollect| (|bpPop2|) (|bpPop1|))))
           (|bpPush| (|bfDTuple| (|bpPop1|))))))

(DEFUN |bpPattern| ()
  (OR (|bpBracketConstruct| #'|bpPatternL|) (|bpName|) (|bpConstTok|)))

(DEFUN |bpEqual| ()
  (AND (|bpEqKey| 'SHOEEQ)
       (OR (|bpApplication|) (|bpConstTok|) (|bpTrap|))
       (|bpPush| (|bfEqual| (|bpPop1|)))))

(DEFUN |bpRegularPatternItem| ()
  (OR (|bpEqual|) (|bpConstTok|) (|bpDot|)
      (AND (|bpName|)
           (OR (AND (|bpEqKey| 'BEC) (OR (|bpPattern|) (|bpTrap|))
                    (|bpPush| (|bfAssign| (|bpPop2|) (|bpPop1|))))
               T))
      (|bpBracketConstruct| #'|bpPatternL|)))

(DEFUN |bpRegularPatternItemL| ()
  (AND (|bpRegularPatternItem|) (|bpPush| (LIST (|bpPop1|)))))

(DEFUN |bpRegularList| ()
  (|bpListof| #'|bpRegularPatternItemL| 'COMMA #'|bfAppend|))

(DEFUN |bpPatternColon| ()
  (AND (|bpEqKey| 'COLON) (OR (|bpRegularPatternItem|) (|bpTrap|))
       (|bpPush| (LIST (|bfColon| (|bpPop1|))))))

(DEFUN |bpPatternL| ()
  (AND (|bpPatternList|) (|bpPush| (|bfTuple| (|bpPop1|)))))

(DEFUN |bpPatternList| ()
  (COND
    ((|bpRegularPatternItemL|)
     (LOOP
       (COND
         ((NOT (AND (|bpEqKey| 'COMMA)
                    (OR (|bpRegularPatternItemL|)
                        (PROGN
                          (OR (AND (|bpPatternTail|)
                                   (|bpPush|
                                    (|append| (|bpPop2|) (|bpPop1|))))
                              (|bpTrap|))
                          NIL))))
          (RETURN NIL))
         (T (|bpPush| (|append| (|bpPop2|) (|bpPop1|))))))
     T)
    (T (|bpPatternTail|))))

(DEFUN |bpPatternTail| ()
  (AND (|bpPatternColon|)
       (OR (AND (|bpEqKey| 'COMMA) (OR (|bpRegularList|) (|bpTrap|))
                (|bpPush| (|append| (|bpPop2|) (|bpPop1|))))
           T)))

(DEFUN |bpRegularBVItemTail| ()
  (OR (AND (|bpEqKey| 'COLON) (OR (|bpApplication|) (|bpTrap|))
           (|bpPush| (|bfTagged| (|bpPop2|) (|bpPop1|))))
      (AND (|bpEqKey| 'BEC) (OR (|bpPattern|) (|bpTrap|))
           (|bpPush| (|bfAssign| (|bpPop2|) (|bpPop1|))))
      (AND (|bpEqKey| 'IS) (OR (|bpPattern|) (|bpTrap|))
           (|bpPush| (|bfAssign| (|bpPop2|) (|bpPop1|))))
      (AND (|bpEqKey| 'DEF) (OR (|bpApplication|) (|bpTrap|))
           (|bpPush| (|%DefaultValue| (|bpPop2|) (|bpPop1|))))))

(DEFUN |bpRegularBVItem| ()
  (OR (|bpBVString|) (|bpConstTok|)
      (AND (|bpName|) (OR (|bpRegularBVItemTail|) T))
      (|bpBracketConstruct| #'|bpPatternL|)))

(DEFUN |bpBVString| ()
  (DECLARE (SPECIAL |$ttok| |$stok|))
  (AND (EQ (|shoeTokType| |$stok|) 'STRING)
       (|bpPush| (LIST 'BVQUOTE (INTERN |$ttok|))) (|bpNext|)))

(DEFUN |bpRegularBVItemL| ()
  (AND (|bpRegularBVItem|) (|bpPush| (LIST (|bpPop1|)))))

(DEFUN |bpColonName| ()
  (AND (|bpEqKey| 'COLON) (OR (|bpName|) (|bpBVString|) (|bpTrap|))))

(DEFUN |bpBoundVariablelist| ()
  (COND
    ((|bpRegularBVItemL|)
     (LOOP
       (COND
         ((NOT (AND (|bpEqKey| 'COMMA)
                    (OR (|bpRegularBVItemL|)
                        (PROGN
                          (OR (AND (|bpColonName|)
                                   (|bpPush|
                                    (|bfColonAppend| (|bpPop2|)
                                     (|bpPop1|))))
                              (|bpTrap|))
                          NIL))))
          (RETURN NIL))
         (T (|bpPush| (|append| (|bpPop2|) (|bpPop1|))))))
     T)
    (T (AND (|bpColonName|)
            (|bpPush| (|bfColonAppend| NIL (|bpPop1|)))))))

(DEFUN |bpVariable| ()
  (OR (AND (|bpParenthesized| #'|bpBoundVariablelist|)
           (|bpPush| (|bfTupleIf| (|bpPop1|))))
      (|bpBracketConstruct| #'|bpPatternL|) (|bpName|) (|bpConstTok|)))

(DEFUN |bpAssignVariable| ()
  (OR (|bpBracketConstruct| #'|bpPatternL|) (|bpAssignLHS|)))

(DEFUN |bpAssignLHS| ()
  (COND
    ((NOT (|bpName|)) NIL)
    ((|bpEqKey| 'COLON) (OR (|bpApplication|) (|bpTrap|))
     (|bpPush| (|bfLocal| (|bpPop2|) (|bpPop1|))))
    (T (AND (|bpArgumentList|)
            (OR (|bpEqPeek| 'DOT)
                (AND (|bpEqPeek| 'BEC)
                     (|bpPush| (|bfPlace| (|bpPop1|))))
                (|bpTrap|)))
       (COND
         ((|bpEqKey| 'DOT)
          (AND (|bpList| #'|bpPrimary| 'DOT) (|bpChecknull|)
               (|bpPush| (|bfTuple| (CONS (|bpPop2|) (|bpPop1|))))))
         (T T)))))

(DEFUN |bpChecknull| ()
  (PROG (|a|)
    (RETURN
      (PROGN
        (SETQ |a| (|bpPop1|))
        (COND ((NULL |a|) (|bpTrap|)) (T (|bpPush| |a|)))))))

(DEFUN |bpStruct| ()
  (AND (|bpEqKey| 'STRUCTURE) (OR (|bpName|) (|bpTrap|))
       (OR (|bpEqKey| 'DEF) (|bpTrap|)) (|bpTypeList|)
       (|bpPush| (|%Structure| (|bpPop2|) (|bpPop1|)))))

(DEFUN |bpTypeList| ()
  (OR (|bpPileBracketed| #'|bpTypeItemList|)
      (AND (|bpTerm| #'|bpIdList|) (|bpPush| (LIST (|bpPop1|))))))

(DEFUN |bpTypeItem| () (|bpTerm| #'|bpIdList|))

(DEFUN |bpTypeItemList| () (|bpListAndRecover| #'|bpTypeItem|))

(DEFUN |bpTerm| (|idListParser|)
  (OR (AND (OR (|bpName|) (|bpTrap|))
           (OR (AND (|bpParenthesized| |idListParser|)
                    (|bpPush| (|bfNameArgs| (|bpPop2|) (|bpPop1|))))
               (AND (|bpName|)
                    (|bpPush| (|bfNameArgs| (|bpPop2|) (|bpPop1|))))))
      (|bpPush| (|bfNameOnly| (|bpPop1|)))))

(DEFUN |bpIdList| () (|bpTuple| #'|bpName|))

(DEFUN |bpCase| ()
  (AND (|bpEqKey| 'CASE) (OR (|bpWhere|) (|bpTrap|))
       (OR (|bpEqKey| 'OF) (|bpMissing| 'OF)) (|bpPiledCaseItems|)))

(DEFUN |bpPiledCaseItems| ()
  (AND (|bpPileBracketed| #'|bpCaseItemList|)
       (|bpPush| (|bfCase| (|bpPop2|) (|bpPop1|)))))

(DEFUN |bpCaseItemList| () (|bpListAndRecover| #'|bpCaseItem|))

(DEFUN |bpCasePatternVar| () (OR (|bpName|) (|bpDot|)))

(DEFUN |bpCasePatternVarList| () (|bpTuple| #'|bpCasePatternVar|))

(DEFUN |bpCaseItem| ()
  (AND (OR (|bpTerm| #'|bpCasePatternVarList|) (|bpTrap|))
       (OR (|bpEqKey| 'EXIT) (|bpTrap|)) (OR (|bpWhere|) (|bpTrap|))
       (|bpPush| (|bfCaseItem| (|bpPop2|) (|bpPop1|)))))

(DEFUN |bpOutItem| ()
  (PROG (|r| |ISTMP#2| |l| |ISTMP#1| |b|)
    (DECLARE (SPECIAL |$InteractiveMode| |$op|))
    (RETURN
      (PROGN
        (SETQ |$op| NIL)
        (OR (|bpComma|) (|bpTrap|))
        (SETQ |b| (|bpPop1|))
        (|bpPush|
            (COND
              ((AND (CONSP |b|) (EQ (CAR |b|) '+LINE)) (LIST |b|))
              ((AND (CONSP |b|) (EQ (CAR |b|) 'L%T)
                    (PROGN
                      (SETQ |ISTMP#1| (CDR |b|))
                      (AND (CONSP |ISTMP#1|)
                           (PROGN
                             (SETQ |l| (CAR |ISTMP#1|))
                             (SETQ |ISTMP#2| (CDR |ISTMP#1|))
                             (AND (CONSP |ISTMP#2|)
                                  (NULL (CDR |ISTMP#2|))
                                  (PROGN (SETQ |r| (CAR |ISTMP#2|)) T)))))
                    (SYMBOLP |l|))
               (COND
                 (|$InteractiveMode| (LIST (LIST 'SETQ |l| |r|)))
                 (T (LIST (LIST 'DEFPARAMETER |l| |r|)))))
              (T (|translateToplevel| |b| NIL))))))))