(IMPORT-MODULE "includer")

(IMPORT-MODULE "scanner")

(IMPORT-MODULE "ast")

(IN-PACKAGE "BOOTTRAN")

(PROVIDE "parser")

(DEFPARAMETER |$sawParenthesizedHead| NIL)

(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| |$stok|))
    (COND
      ((AND (< 0 |$bpParenCount|) (EQCAR |$stok| 'KEY))
       (COND
         ((EQ |$ttok| 'SETTAB)
          (PROGN (SETQ |$bpCount| (+ |$bpCount| 1)) (|bpNext|)))
         ((EQ |$ttok| 'BACKTAB)
          (PROGN (SETQ |$bpCount| (- |$bpCount| 1)) (|bpNext|)))
         ((EQ |$ttok| 'BACKSET) (|bpNext|))
         (#0='T T)))
      (#0# 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)
                (#0='T
                 (PROGN
                   (SETQ |$inputStream|
                         (APPEND (|bpAddTokens| |$bpCount|)
                                 |$inputStream|))
                   (|bpFirstToken|)
                   (COND
                     ((EQL |$bpParenCount| 0) (PROGN (|bpCancel|) T))
                     (#0# T))))))
             ((|bpEqPeek| 'CPAREN) (|bpPush| (|bfTuple| NIL))
              (SETQ |$bpParenCount| (- |$bpParenCount| 1))
              (|bpNextToken|) T)
             (#1='T (|bpParenTrap| |a|))))
          (#1# 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)
             (#0='T (|bpParenTrap| |a|))))
          (#0# 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))
             (#0='T (|bpBrackTrap| |a|))))
          (#0# NIL))))))

(DEFUN |bpPileBracketed| (|f|)
  (COND
    ((|bpEqKey| 'SETTAB)
     (COND
       ((|bpEqKey| 'BACKTAB) T)
       ((AND (APPLY |f| NIL) (OR (|bpEqKey| 'BACKTAB) (|bpPileTrap|)))
        (|bpPush| (|bfPile| (|bpPop1|))))
       (#0='T NIL)))
    (#0# 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 (NREVERSE |$stack|) |a|))
            (|bpPush|
                (FUNCALL |g|
                         (CONS (|bpPop3|) (CONS (|bpPop2|) (|bpPop1|))))))
           (#0='T T)))
        (#0# 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 (NREVERSE |$stack|) |a|))
            (|bpPush|
                (FUNCALL |g|
                         (|bfListOf|
                             (CONS (|bpPop3|)
                                   (CONS (|bpPop2|) (|bpPop1|)))))))
           (#0='T T)))
        (#0# NIL)))))

(DEFUN |bpList| (|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 (NREVERSE |$stack|) |a|))
            (|bpPush|
                (FUNCALL |g|
                         (CONS (|bpPop3|) (CONS (|bpPop2|) (|bpPop1|))))))
           (#0='T (|bpPush| (FUNCALL |g| (LIST (|bpPop1|)))))))
        (#0# (|bpPush| (FUNCALL |g| NIL)))))))

(DEFUN |bpOneOrMore| (|f|)
  (PROG (|a|)
    (DECLARE (SPECIAL |$stack|))
    (RETURN
      (COND
        ((APPLY |f| NIL)
         (PROGN
           (SETQ |a| |$stack|)
           (SETQ |$stack| NIL)
           (LOOP (COND ((NOT (APPLY |f| NIL)) (RETURN NIL)) ('T 0)))
           (SETQ |$stack| (CONS (NREVERSE |$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)))
          (#0='T (|bpMissing| 'THEN))))
       ((|bpEqKey| 'THEN)
        (AND (OR (APPLY |f| NIL) (|bpTrap|)) (|bpElse| |f|)))
       (#0# (|bpMissing| '|then|))))
    (#0# 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 (EQCAR |$stok| 'KEY) (EQ |s| |$ttok|)))

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

(DEFUN |bpEqKeyNextTok| (|s|)
  (DECLARE (SPECIAL |$ttok| |$stok|))
  (AND (EQCAR |$stok| 'KEY) (EQ |s| |$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 'TRAPPOINT 'TRAPPED)))

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

(DEFUN |bpTrap| ()
  (PROGN (|bpGeneralErrorHere|) (THROW 'TRAPPOINT '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| |$inputStream|)
        (LOOP
          (COND
            (|done| (RETURN NIL))
            ('T
             (PROGN
               (SETQ |found| (CATCH 'TRAPPOINT (APPLY |f| NIL)))
               (COND
                 ((EQ |found| 'TRAPPED) (SETQ |$inputStream| |c|)
                  (|bpRecoverTrap|))
                 ((NOT |found|) (SETQ |$inputStream| |c|)
                  (|bpGeneralErrorHere|) (|bpRecoverTrap|)))
               (COND
                 ((|bpEqKey| 'BACKSET) (SETQ |c| |$inputStream|))
                 ((OR (|bpEqPeek| 'BACKTAB) (NULL |$inputStream|))
                  (SETQ |done| T))
                 (#0='T (SETQ |$inputStream| |c|)
                  (|bpGeneralErrorHere|) (|bpRecoverTrap|)
                  (COND
                    ((OR (|bpEqPeek| 'BACKTAB) (NULL |$inputStream|))
                     (SETQ |done| T))
                    (#0# (|bpNext|) (SETQ |c| |$inputStream|)))))
               (SETQ |b| (CONS (|bpPop1|) |b|))))))
        (SETQ |$stack| |a|)
        (|bpPush| (NREVERSE |b|))))))

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

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

(DEFUN |bpName| ()
  (DECLARE (SPECIAL |$stok|))
  (COND
    ((EQCAR |$stok| 'ID)
     (PROGN (|bpPushId|) (|bpNext|) (|bpAnyNo| #'|bpQualifiedName|)))
    ('T NIL)))

(DEFUN |bpConstTok| ()
  (DECLARE (SPECIAL |$ttok| |$stok|))
  (COND
    ((MEMQ (|shoeTokType| |$stok|) '(INTEGER FLOAT))
     (PROGN (|bpPush| |$ttok|) (|bpNext|)))
    ((EQCAR |$stok| 'LISP)
     (AND (|bpPush| (|bfReadLisp| |$ttok|)) (|bpNext|)))
    ((EQCAR |$stok| 'LISPEXP) (AND (|bpPush| |$ttok|) (|bpNext|)))
    ((EQCAR |$stok| 'LINE)
     (AND (|bpPush| (LIST '+LINE |$ttok|)) (|bpNext|)))
    ((|bpEqPeek| 'QUOTE)
     (PROGN
       (|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|))
        (#0='T
         (PROGN
           (SETQ |a| (|bpState|))
           (COND
             ((|bpName|)
              (COND
                ((|bpEqPeek| 'COLON)
                 (PROGN
                   (|bpRestore| |a|)
                   (OR (|bpSignature|) (|bpTrap|))
                   (OR (|bpExportItemTail|) T)))
                (#0# (PROGN (|bpRestore| |a|) (|bpTypeAliasDefition|)))))
             (#0# NIL))))))))

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

(DEFUN |bpExports| () (|bpPileBracketed| #'|bpExportItemList|))

(DEFUN |bpModule| ()
  (COND
    ((|bpEqKey| 'MODULE)
     (IDENTITY
         (PROGN
           (OR (|bpName|) (|bpTrap|))
           (COND
             ((|bpEqKey| 'WHERE)
              (AND (|bpExports|)
                   (|bpPush| (|%Module| (|bpPop2|) (|bpPop1|)))))
             ('T (|bpPush| (|%Module| (|bpPop1|) NIL)))))))))

(DEFUN |bpImport| ()
  (COND
    ((|bpEqKey| 'IMPORT)
     (PROGN
       (OR (|bpName|) (|bpTrap|))
       (COND
         ((|bpEqKey| 'FOR)
          (AND (OR (|bpSignature|) (|bpTrap|))
               (|bpPush| (|ImportSignature| (|bpPop2|) (|bpPop1|)))))
         (#0='T (|bpPush| (|Import| (|bpPop1|)))))))
    (#0# NIL)))

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

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

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

(DEFUN |bpMapping| ()
  (OR (AND (|bpParenthesized| #'|bpIdList|) (|bpEqKey| 'ARROW)
           (|bpApplication|)
           (|bpPush| (|Mapping| (|bpPop1|) (|bfUntuple| (|bpPop1|)))))
      (|bpSimpleMapping|)))

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

(DEFUN |bpAddTokens| (|n|)
  (DECLARE (SPECIAL |$stok|))
  (COND
    ((EQL |n| 0) NIL)
    ((< 0 |n|)
     (CONS (|shoeTokConstruct| 'KEY 'SETTAB (|shoeTokPosn| |$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 (EQCAR |$stok| 'KEY) (NOT (|bpExceptions|)))
         (PROGN
           (SETQ |a| (GET |$ttok| 'SHOEINF))
           (COND
             ((NULL |a|) (AND (|bpPush| |$ttok|) (|bpNext|)))
             (#0='T (AND (|bpPush| |a|) (|bpNext|))))))
        (#0# NIL)))))

(DEFUN |bpAnyId| ()
  (DECLARE (SPECIAL |$ttok| |$stok|))
  (OR (AND (|bpEqKey| 'MINUS) (OR (EQCAR |$stok| 'INTEGER) (|bpTrap|))
           (|bpPush| (- |$ttok|)) (|bpNext|))
      (|bpSexpKey|)
      (AND (MEMQ (|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 (|bpName|) (|bpDot|) (|bpConstTok|) (|bpConstruct|) (|bpCase|)
      (|bpStruct|) (|bpPDefinition|) (|bpBPileDefinition|)))

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

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

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

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

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

(DEFUN |bpOperator| () (AND (|bpPrimary|) (|bpAnyNo| #'|bpSelector|)))

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

(DEFUN |bpTyping| ()
  (OR (AND (|bpApplication|)
           (OR (AND (|bpEqKey| 'ARROW)
                    (OR (|bpApplication|) (|bpTrap|))
                    (|bpPush|
                        (|Mapping| (|bpPop1|) (|bfUntuple| (|bpPop1|)))))
               T))
      (|bpMapping|)))

(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 (EQCAR |$stok| 'KEY) (MEMBER |$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 (EQCAR |$stok| 'ID) (GET |$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 |bpMinus| ()
  (OR (AND (|bpInfGeneric| '(MINUS)) (OR (|bpTimes|) (|bpTrap|))
           (|bpPush| (|bfApplication| (|bpPop2|) (|bpPop1|))))
      (|bpTimes|)))

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

(DEFUN |bpIs| ()
  (AND (|bpArith|)
       (OR (AND (|bpInfKey| '(IS ISNT)) (OR (|bpPattern|) (|bpTrap|))
                (|bpPush|
                    (|bfISApplication| (|bpPop2|) (|bpPop2|)
                        (|bpPop1|))))
           T)))

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

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

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

(DEFUN |bpThrow| ()
  (AND (|bpEqKey| 'THROW) (|bpApplication|)
       (|bpPush| (|bfThrow| (|bpPop1|)))))

(DEFUN |bpTry| ()
  (AND (|bpEqKey| 'TRY) (|bpAssign|) (OR (|bpEqKey| 'BACKSET) T)
       (OR (|bpEqKey| 'CATCH) (|bpMissing| 'CATCH))
       (OR (|bpPiledCatchItems|) (|bpSimpleCatch|) (|bpTrap|))
       (|bpPush| (|bfTry| (|bpPop2|) (|bpPop1|)))))

(DEFUN |bpSimpleCatch| ()
  (AND (|bpCatchItem|) (|bpPush| (LIST (|bpPop1|)))))

(DEFUN |bpPiledCatchItems| () (|bpPileBracketed| #'|bpCatchItemList|))

(DEFUN |bpCatchItemList| () (|bpListAndRecover| #'|bpCatchItem|))

(DEFUN |bpExceptionHead| ()
  (OR (AND (OR (|bpName|) (|bpTrap|))
           (OR (AND (|bpParenthesized| #'|bpIdList|)
                    (|bpPush| (|bfNameArgs| (|bpPop2|) (|bpPop1|))))
               (AND (|bpName|)
                    (|bpPush| (|bfNameArgs| (|bpPop2|) (|bpPop1|))))))
      T))

(DEFUN |bpExceptionTail| ()
  (AND (|bpEqKey| 'EXIT) (OR (|bpAssign|) (|bpTrap|))
       (|bpPush| (|Exit| (|bpPop2|) (|bpPop1|)))))

(DEFUN |bpException| ()
  (AND (|bpExceptionHead|) (OR (|bpExceptionTail|) T)))

(DEFUN |bpCatchItem| ()
  (AND (OR (|bpException|) (|bpTrap|))
       (|bpPush| (|%Catch| (|bpPop1|)))))

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

(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 |bpForIn| ()
  (AND (|bpEqKey| 'FOR) (OR (|bpVariable|) (|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|)))
             (#0='T T)))
          (#0# (|bpRestore| |a|) NIL))))))

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

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

(DEFUN |bpBeginDefinition| ()
  (DECLARE (SPECIAL |$sawParenthesizedHead|))
  (OR (|bpEqPeek| 'DEF)
      (AND |$sawParenthesizedHead| (|bpEqPeek| 'COLON))))

(DEFUN |bpDefinition| ()
  (PROG (|a|)
    (RETURN
      (PROGN
        (SETQ |a| (|bpState|))
        (COND
          ((|bpExit|)
           (COND
             ((|bpBeginDefinition|)
              (PROGN (|bpRestore| |a|) (|bpDef|)))
             ((|bpEqPeek| 'TDEF)
              (PROGN (|bpRestore| |a|) (|bpTypeAliasDefition|)))
             ((|bpEqPeek| 'MDEF) (PROGN (|bpRestore| |a|) (|bpMdef|)))
             (#0='T T)))
          (#0# (PROGN (|bpRestore| |a|) NIL)))))))

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

(DEFUN |bpReturnType| ()
  (DECLARE (SPECIAL |$returnType| |$sawParenthesizedHead|))
  (COND
    ((AND |$sawParenthesizedHead| (|bpEqKey| 'COLON))
     (PROGN
       (OR (|bpApplication|) (|bpTrap|))
       (SETQ |$returnType| (|bpPop1|))
       T))
    ('T T)))

(DEFUN |bpDef| ()
  (AND (|bpName|) (|bpStoreName|) (|bpDefTail|)
       (|bpPush| (|bfCompDef| (|bpPop1|)))))

(DEFUN |bpDDef| () (AND (|bpName|) (|bpDefTail|)))

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

(DEFUN |bpCompoundDefinitionTail| ()
  (AND (|bpVariable|) (|bpReturnType|) (|bpEqKey| 'DEF)
       (OR (|bpWhere|) (|bpTrap|))
       (|bpPush| (|bfDefinition| (|bpPop3|) (|bpPop2|) (|bpPop1|)))))

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

(DEFUN |bpMDefTail| ()
  (AND (OR (|bpVariable|) (|bpTrap|)) (|bpEqKey| 'MDEF)
       (OR (|bpWhere|) (|bpTrap|))
       (|bpPush| (|bfMDefinition| (|bpPop3|) (|bpPop2|) (|bpPop1|)))))

(DEFUN |bpMdef| () (AND (|bpName|) (|bpStoreName|) (|bpMDefTail|)))

(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)
          (#0='T (|bpRestore| |a|)
           (COND
             ((|bpBDefinitionPileItems|) T)
             (#0# (|bpRestore| |a|)
              (COND
                ((|bpPDefinitionItems|) T)
                (#0# (|bpRestore| |a|) (|bpWhere|)))))))))))

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

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

(DEFUN |bpSemiColonDefinition| ()
  (|bpSemiListing| #'|bpDefinitionItem| #'|bfDefSequence|))

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

(DEFUN |bpComma| ()
  (OR (|bpModule|) (|bpImport|) (|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 |bpBeginParameterList| ()
  (DECLARE (SPECIAL |$sawParenthesizedHead|))
  (PROGN (SETQ |$sawParenthesizedHead| NIL) T))

(DEFUN |bpEndParameterList| ()
  (DECLARE (SPECIAL |$sawParenthesizedHead|))
  (SETQ |$sawParenthesizedHead| T))

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

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

(DEFUN |bpAssignLHS| ()
  (AND (|bpName|)
       (OR (AND (|bpEqKey| 'COLON) (OR (|bpApplication|) (|bpTrap|))
                (|bpPush| (|bfLocal| (|bpPop2|) (|bpPop1|))))
           (AND (|bpEqKey| 'DOT)
                (|bpList| #'|bpPrimary| 'DOT #'|bfListOf|)
                (|bpChecknull|)
                (|bpPush| (|bfTuple| (CONS (|bpPop2|) (|bpPop1|)))))
           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| (|bfStruct| (|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|)))))