Programmer 7500/MAX_PROGRAMMERS.iso/PASCAL/CMLN1285.ZIP/QPARSER.LST

File List | 1986-02-27 | 29.1 KB | 1,056 lines

C:\QPARSER>lr1

QPARSER LALR(1) Parser Generator, version 2.5 *restricted use*
COPYRIGHT (C) 1985, QCAD Systems, Inc.  All rights reserved.

Usage:
  LR1 grammarfile[.GRM] [ -l reportfile[.TXT] ]
        [ -t tablefile[.TBL] ]

Other options (* means default):
  -l#   set report level to # (* = 0; max = 6)
  -nt   no table output
  -g#   set LALR stack to # (default = 50)
The generator report levels are as follows:
    0:  Grammar and conflict report
    1:  Tokens and token numbers
    2:  Final state machine
    3:  Grammar statistics, initial item sets
    4:  More item sets in more detail
Each report level encompasses all lower level numbers.

C:\QPARSER>lr1 prolog6 -l2

QPARSER LALR(1) Parser Generator, version 2.5 *restricted use*
COPYRIGHT (C) 1985, QCAD Systems, Inc.  All rights reserved.
LALR(1) Parser Generator, version 2.5 &&&&&&&&&&&&&&&&
COPYRIGHT (C) 1985, QCAD Systems, Inc.  All rights reserved.
Grammar file  = prolog6.GRM
Report file   = CON:
Report level  = 2
LALR stack size = 50
Table file    = prolog6.TBL


Memory available 28661
----------------------
Productions

  1 Start      -> Prolog
  2
  2 Prolog     -> Prolog Clause
  3            -> Clause
  4
  4 Clause     -> Goals '.'
  5            -> Goals ':-' Goals '.'
  6
  6 Goals      -> Goals ',' Goal
  7            -> Goal
  8
  8 Goal       -> Predicate '(' Components ')'
  9
  9 Components -> Components ',' Component
 10            -> Component
 11
 11 Component  -> Functor '(' Components ')'
 12            -> '<VARIABLE>'
 13            -> Constant
 14            -> List
 15
 15 Constant   -> '<NUMBER>'
 16            -> '<ATOM>'
 17
 17 Functor    -> '<ATOM>'
 18
 18 Predicate  -> '<ATOM>'
 19
 19 List       -> '[' ']'
 20            -> '[' Head ']'
 21            -> '[' Head '|' Tail ']'
 22
 22 Head       -> Components
 23
 23 Tail       -> List
 24

Memory available 27117

Terminal tokens

  1: (
  2: )
  3: ,
  4: .
  5: :-
  6: <ATOM>
  7: <NUMBER>
  8: <VARIABLE>
  9: <empty>
 10: <eol>
 11: <identifier>
 12: <integer>
 13: <real>
 14: <stop>
 15: <string>
 16: [
 17: ]
 18: |

Nonterminal tokens

 19: Clause
 20: Component
 21: Components
 22: Constant
 23: Functor
 24: Goal
 25: Goals
 26: Head
 27: List
 28: Predicate
 29: Prolog
 30: Start
 31: Tail
State building complete
Memory available 26755
Memory available 26730
Mixed read-reduce states split
36 LALR items required
Memory available 26525
Memory available 26499
READS completed
INCLUDES completed: max stack= 4
36 LALR list items
Memory available 26525
0 conflicts found.
Resolution complete
Untagged single productions removed
Inaccessible state: 5
Inaccessible state: 6
Inaccessible state: 16
Inaccessible state: 19
Inaccessible state: 22
Inaccessible state: 35
Inaccessible states removed
Read tables compressed
Reduce tables compressed
Parser table reduction complete
States renumbered


State Machine
  Start state: 18, initial stack state: 18
0: HALT
1: REDUCE
  18 [Predicate -> <ATOM> |]
 - On stack state 34 => 20
 - On stack state 22 => 20
 - On stack state 21 => 20
 - On stack state 18 => 20
2: REDUCE
   4 [Clause -> Goals . |]
 - On stack state 18 => 37
   On stack state 34 => 3
3: REDUCE
   2 [Prolog -> Prolog Clause |]
 - On stack state 18 => 37
4: REDUCE
   6 [Goals -> Goals , Goal |]
 - On stack state 34 => 19
 - On stack state 18 => 19
   On stack state 21 => 24
5: REDUCE
  15 [Constant -> <NUMBER> |]
 - On stack state 23 => 27
   On stack state 25 => 39
   On stack state 29 => 32
   On stack state 30 => 11
6: REDUCE
  12 [Component -> <VARIABLE> |]
 - On stack state 23 => 27
   On stack state 25 => 39
   On stack state 29 => 32
   On stack state 30 => 11
7: REDUCE  (= 2)
   5 [Clause -> Goals :- Goals . |]
 - On stack state 18 => 37
   On stack state 34 => 3
8: REDUCE
  19 [List -> [ ] |]
 - On stack state 23 => 27
   On stack state 25 => 39
   On stack state 29 => 32
   On stack state 30 => 11
   On stack state 31 => 33
9: REDUCE
   8 [Goal -> Predicate ( Components ) |]
 - On stack state 34 => 19
 - On stack state 18 => 19
   On stack state 21 => 24
   On stack state 22 => 4
10: REDUCE  (= 8)
  20 [List -> [ Head ] |]
 - On stack state 23 => 27
   On stack state 25 => 39
   On stack state 29 => 32
   On stack state 30 => 11
   On stack state 31 => 33
11: REDUCE
   9 [Components -> Components , Component |]
 - On stack state 23 => 27
   On stack state 25 => 39
   On stack state 29 => 32
12: REDUCE  (= 6)
  11 [Component -> Functor ( Components ) |]
 - On stack state 23 => 27
   On stack state 25 => 39
   On stack state 29 => 32
   On stack state 30 => 11
13: REDUCE  (= 8)
  21 [List -> [ Head | Tail ] |]
 - On stack state 23 => 27
   On stack state 25 => 39
   On stack state 29 => 32
   On stack state 30 => 11
   On stack state 31 => 33
14: REDUCE
   1 [Start -> Prolog |]
 - On stack state 18 => 0
15: REDUCE  (= 5)
  16 [Constant -> <ATOM> |]
 - On stack state 23 => 27
   On stack state 25 => 39
   On stack state 29 => 32
   On stack state 30 => 11
16: REDUCE
  17 [Functor -> <ATOM> |]
 - On stack state 30 => 26
 - On stack state 29 => 26
 - On stack state 25 => 26
 - On stack state 23 => 26
17: REDUCE
  22 [Head -> Components |]
 - On stack state 25 => 28
18: READ
  On <ATOM> => 1
19: READ
  On , => 22
  On . => 2
  On :- => 21
20: READ
  On ( => 23
21: READ  (= 18)
  On <ATOM> => 1
22: READ  (= 18)
  On <ATOM> => 1
23: READ
  On <ATOM> => 38
  On <NUMBER> => 5
  On <VARIABLE> => 6
  On [ => 25
24: READ
  On , => 22
  On . => 7
25: READ
  On <ATOM> => 38
  On <NUMBER> => 5
  On <VARIABLE> => 6
  On [ => 25
  On ] => 8
26: READ
  On ( => 29
27: READ
  On ) => 9
  On , => 30
28: READ
  On ] => 10
  On | => 31
29: READ  (= 23)
  On <ATOM> => 38
  On <NUMBER> => 5
  On <VARIABLE> => 6
  On [ => 25
30: READ  (= 23)
  On <ATOM> => 38
  On <NUMBER> => 5
  On <VARIABLE> => 6
  On [ => 25
31: READ
  On [ => 25
32: READ
  On ) => 12
  On , => 30
33: READ
  On ] => 13
34: READ  (= 18)
  On <ATOM> => 1
35: READ
36: READ
  On , => 30
37: LOOK
 - On { <ATOM> } => 34
   On { <stop> } => 14
38: LOOK
   On { } => 35
 - On { ) , ] | } => 15
   On { ( } => 16
39: LOOK
   On { , } => 36
 - On { ] | } => 17

No errors or warnings.

C:\QPARSER>

C:\QPARSER>gramchk

QPARSER Grammar Checker, version 2.4
COPYRIGHT (C) 1985, QCAD Systems, Inc.  All rights reserved.


Usage:
  GRAMCHK grammarfile[.GRM] [ -l reportfile[.TXT] ]

Option:
  -l#  report level:=# (default = 0)

The report levels are as follows:
    0:  Grammar and inspection report
    1:  Grammar cross-reference table
    2:  First/follow/predecessor sets
    3:  Grammar statistics
 A large report level implies printing everything at a lower level

C:\QPARSER>gramchk prolog6 -l1

QPARSER Grammar Checker, version 2.4
COPYRIGHT (C) 1985, QCAD Systems, Inc.  All rights reserved.

GRAMCHK grammar report and checking utility, version 2.4
COPYRIGHT (C) 1985, QCAD Systems, Inc.  All rights reserved.

Grammar file  = prolog6.GRM
Report file   = CON:
Report level  = 1
LALR stack size = 50
Table file    = prolog6.TBL


----------------------
Productions

  1 Start      -> Prolog
  2
  2 Prolog     -> Prolog Clause
  3            -> Clause
  4
  4 Clause     -> Goals '.'
  5            -> Goals ':-' Goals '.'
  6
  6 Goals      -> Goals ',' Goal
  7            -> Goal
  8
  8 Goal       -> Predicate '(' Components ')'
  9
  9 Components -> Components ',' Component
 10            -> Component
 11
 11 Component  -> Functor '(' Components ')'
 12            -> '<VARIABLE>'
 13            -> Constant
 14            -> List
 15
 15 Constant   -> '<NUMBER>'
 16            -> '<ATOM>'
 17
 17 Functor    -> '<ATOM>'
 18
 18 Predicate  -> '<ATOM>'
 19
 19 List       -> '[' ']'
 20            -> '[' Head ']'
 21            -> '[' Head '|' Tail ']'
 22
 22 Head       -> Components
 23
 23 Tail       -> List
 24

------------------
Alphabetized productions

  4:  Clause -> Goals .
  5:  Clause -> Goals :- Goals .
 11:  Component -> Functor ( Components )
 12:  Component -> <VARIABLE>
 13:  Component -> Constant
 14:  Component -> List
  9:  Components -> Components , Component
 10:  Components -> Component
 15:  Constant -> <NUMBER>
 16:  Constant -> <ATOM>
 17:  Functor -> <ATOM>
  8:  Goal -> Predicate ( Components )
  6:  Goals -> Goals , Goal
  7:  Goals -> Goal
 22:  Head -> Components
 19:  List -> [ ]
 20:  List -> [ Head ]
 21:  List -> [ Head | Tail ]
 18:  Predicate -> <ATOM>
  2:  Prolog -> Prolog Clause
  3:  Prolog -> Clause
  1: *Start -> Prolog
 23:  Tail -> List

------------------
Token cross-reference table
TERMINAL tokens

  1. (                8   11
  2. )                8   11
  3. ,                6    9
  4. .                4    5
  5. :-               5
  6. <ATOM>          16   17   18
  7. <NUMBER>        15
  8. <VARIABLE>      12
  9. <empty>
 10. <eol>
 11. <identifier>
 12. <integer>
 13. <real>
 14. <stop>
 15. <string>
 16. [               19   20   21
 17. ]               19   20   21
 18. |               21


NONTERMINAL tokens

 19. Clause           2    3    4*   5*
 20. Component        9   10   11*  12*  13*  14*
 21. Components       8    9*   9   10*  11   22
 22. Constant        13   15*  16*
 23. Functor         11   17*
 24. Goal             6    7    8*
 25. Goals            4    5    5    6*   6    7*
 26. Head            20   21   22*
 27. List            14   19*  20*  21*  23
 28. Predicate        8   18*
 29. Prolog           1    2*   2    3*
 30. Start            1*
 31. Tail            21   23*

------------------------
The following special terminals have appeared
  in the grammar:

------------------------
Checking for useless productions and the possibility that
 the goal symbol fails to derive any terminal string
A complaint means that the grammar should be reduced
 or repaired.
 ... no useless productions
 ... goal symbol derives at least one terminal string
------------------------
Checking for any tokens, terminal or nonterminal,
 that cannot be derived from the goal.
If any such are found, the grammar is not strongly
 connected and should be repaired.
  ... no problems detected
------------------------

Nullable nonterminals: none found
------------------------
Checking for any single production cycles, e.g.
  A ->+ A
If one exists, the grammar is ambiguous.
  (A cycle may be reported more than once)

 ... no cycles detected
------------------------
Checking for any nonterminals that fail to derive a single
 terminal token.  A complaint is NOT an error.  You may choose
 to add an error production for each such nonterminal in order
 to improve error recovery.  Just create a unique error terminal
 token, e.g. ERROR_01, then add the production X -> ERROR_01

  NOTE: No production of the form Clause -> x, where x is terminal
  NOTE: No production of the form Components -> x, where x is terminal
  NOTE: No production of the form Goal -> x, where x is terminal
  NOTE: No production of the form Goals -> x, where x is terminal
  NOTE: No production of the form Head -> x, where x is terminal
  NOTE: No production of the form List -> x, where x is terminal
  NOTE: No production of the form Prolog -> x, where x is terminal
  NOTE: No production of the form Start -> x, where x is terminal
  NOTE: No production of the form Tail -> x, where x is terminal

No errors or warnings.

C:\QPARSER>lr1 psg3

QPARSER LALR(1) Parser Generator, version 2.5 *restricted use*
COPYRIGHT (C) 1985, QCAD Systems, Inc.  All rights reserved.
LALR(1) Parser Generator, version 2.5 &&&&&&&&&&&&&&&&
COPYRIGHT (C) 1985, QCAD Systems, Inc.  All rights reserved.
----------------------
Productions

  1
  1 PSG -> Program
  2 Program -> ProgHead ProgParms ';' Pblk Pblock '.'
  3
  3 ProgHead -> 'PROGRAM' '<IDENTIFIER>'
  4 ProgParms ->
  5
  5 Pblock -> LBList TYPList VRList PList Pbegin StmtList 'END'
  6 Pbegin -> 'BEGIN'
  7
  7 Block -> 'BEGIN' StmtList 'END'
  8
  8 LBList -> 'LABEL' LabList ';'
  9        ->
 10 LabList -> LabList ',' '<INTEGER>'
 11         -> '<INTEGER>'
 12
 12 VRList -> Var VList ';'
 13        ->
 14 Var -> 'VAR'
 15 VList -> VList ';' VarItem
 16       -> VarItem
 17 VarItem -> IdentList ':' Type
 18 IdentList -> IdentList ',' '<IDENTIFIER>'
 19           -> '<IDENTIFIER>'
 20
 20 TYPList -> 'TYPE' TList ';'
 21         ->
 22 TList -> TList ';' TypItem
 23       -> TypItem
 24 TypItem -> '<IDENTIFIER>' '=' Type
 25
 25 Type -> SimpType
 26      -> 'ARRAY' '[' Sint '..' Sint ']' 'OF' Type
 27      -> 'RECORD' FieldList 'END'
 28
 28 SimpType -> '<IDENTIFIER>'
 29
 29
 29 FieldList -> IdentList ':' Type
 30           -> IdentList ':' Type ';' FieldList
 31           -> 'CASE' SimpType 'OF' CaseList
 32
 32
 32 CaseList -> CaseItem ';' CaseList
 33          -> CaseItem
 34 CaseItem -> ConstList ':' '(' FieldList ')'
 35
 35 PList -> PList PFDecl
 36       ->
 37 PFDecl -> ProcDecl
 38        -> FuncDecl
 39 ProcDecl -> ProcHead Parms ';' 'FORWARD' ';'
 40          -> ProcHead Parms ';' Pblk Pblock ';'
 41 ProcHead -> 'PROCEDURE' '<IDENTIFIER>'
 42 FuncDecl -> FuncHead Parms ':' '<IDENTIFIER>' ';' 'FORWARD' ';'
 43          -> FuncHead Parms ':' '<IDENTIFIER>' ';' Fblk Pblock ';'
 44 FuncHead -> 'FUNCTION' '<IDENTIFIER>'
 45 Parms ->
 46          -> '(' ParmList ')'
 47 ParmList -> ParmList ';' Parm
 48          -> Parm
 49 Parm -> 'VAR' IdentList ':' SimpType
 50      -> IdentList ':' SimpType
 51 Pblk ->
 52 Fblk ->
 53
 53 StmtList -> StmtList ';' Stmt
 54          -> Stmt
 55 Stmt -> 'IF' Boolean Then Stmt
 56      -> 'IF' Boolean Then Stmt Else Stmt
 57      -> 'WHILE' Boolean Do Stmt
 58      -> Repeat StmtList 'UNTIL' Boolean
 59      -> 'FOR' VarHead ':=' Boolean 'TO' Boolean Fup Stmt
 60      -> 'FOR' VarHead ':=' Boolean 'DOWNTO' Boolean Fdown Stmt
 61      -> Variable ':=' Boolean
 62      -> ProcCall
 63      -> '<IDENTIFIER>'
 64      -> 'GOTO' '<INTEGER>'
 65      -> Label ':' Stmt
 66      -> Block
 67      -> ReadWrite '(' IOList ')'
 68      ->
 69 Then -> 'THEN'
 70 Else -> 'ELSE'
 71 Fup -> 'DO'
 72 Fdown -> 'DO'
 73 Do -> 'DO'
 74 Repeat -> 'REPEAT'
 75 Label -> '<INTEGER>'
 76 ReadWrite -> 'READ'
 77           -> 'WRITE'
 78
 78 IOList -> IOList ',' IOItem
 79        -> IOItem
 80 IOItem -> Boolean
 81        -> '<string>'
 82
 82 ProcCall -> '<IDENTIFIER>' '(' BoolList ')'
 83 BoolList -> BoolList ',' Boolean
 84          -> Boolean
 85
 85 Boolean -> BoolTerm
 86         -> Boolean 'OR' BoolTerm
 87 BoolTerm -> BoolUnary
 88          -> BoolTerm 'AND' BoolUnary
 89 BoolUnary -> BoolPri
 90           -> 'NOT' BoolPri
 91 BoolPri -> Expr
 92         -> Expr Relop Expr
 93
 93 Relop -> '<'
 94       -> '>'
 95       -> '<='
 96       -> '>='
 97       -> '='
 98       -> '<>'
 99
 99 Expr -> Expr '+' Term
100      -> Expr '-' Term
101      -> Term
102 Term -> Term '*' Unary
103      -> Term '/' Unary
104      -> Term 'MOD' Unary
105      -> Term 'DIV' Unary
106      -> Unary
107 Unary -> Primary
108       -> '-' Primary
109 Primary -> '(' Boolean ')'
110         -> ProcCall
111         -> Variable
112         -> Constant
113
113 Variable -> VarHead VarExtension
114 VarHead -> '<IDENTIFIER>'
115 VarExtension -> VarExtension VarExt
116              ->
117 VarExt -> '[' BoolList ']'
118        -> '.' '<IDENTIFIER>'
119
119 Constant -> '<REAL>'
120          -> '<INTEGER>'
121          -> 'TRUE'
122          -> 'FALSE'
123 ConstList -> ConstList ',' Constant
124           -> Constant
125 Sint -> '<INTEGER>'
126      -> '-' '<INTEGER>'

State building complete
Mixed read-reduce states split
401 LALR items required
READS completed
INCLUDES completed: max stack= 13
401 LALR list items
------------------------
LOOKAHEAD conflict on tokens ELSE
205: LOOK , insymbol Stmt
   On { ELSE } => 309
   On { ; ELSE END UNTIL } => 310
309: READ , insymbol Stmt
  70 [Else -> | ELSE] => 220
 *56 [Stmt -> IF Boolean Then Stmt | Else Stmt] => 221
310: REDUCE , insymbol Stmt
  55 [Stmt -> IF Boolean Then Stmt |]
 ... fully resolved in favor of READ
Lookahead state AFTER resolution:
205: LOOK , insymbol Stmt
   On { ELSE } => 309
   On { ; END UNTIL } => 310
1 conflict found and resolved.
 PLEASE EXAMINE THE CONFLICT REPORT
  ... parser may not do what you expect
Resolution complete
Untagged single productions removed
Inaccessible states removed
Read tables compressed
Reduce tables compressed
Parser table reduction complete
States renumbered

1 ERROR

C:\QPARSER>gramchk psg3

QPARSER Grammar Checker, version 2.4
COPYRIGHT (C) 1985, QCAD Systems, Inc.  All rights reserved.

GRAMCHK grammar report and checking utility, version 2.4
COPYRIGHT (C) 1985, QCAD Systems, Inc.  All rights reserved.

----------------------
Productions

  1
  1 PSG -> Program
  2 Program -> ProgHead ProgParms ';' Pblk Pblock '.'
  3
  3 ProgHead -> 'PROGRAM' '<IDENTIFIER>'
  4 ProgParms ->
  5
  5 Pblock -> LBList TYPList VRList PList Pbegin StmtList 'END'
  6 Pbegin -> 'BEGIN'
  7
  7 Block -> 'BEGIN' StmtList 'END'
  8
  8 LBList -> 'LABEL' LabList ';'
  9        ->
 10 LabList -> LabList ',' '<INTEGER>'
 11         -> '<INTEGER>'
 12
 12 VRList -> Var VList ';'
 13        ->
 14 Var -> 'VAR'
 15 VList -> VList ';' VarItem
 16       -> VarItem
 17 VarItem -> IdentList ':' Type
 18 IdentList -> IdentList ',' '<IDENTIFIER>'
 19           -> '<IDENTIFIER>'
 20
 20 TYPList -> 'TYPE' TList ';'
 21         ->
 22 TList -> TList ';' TypItem
 23       -> TypItem
 24 TypItem -> '<IDENTIFIER>' '=' Type
 25
 25 Type -> SimpType
 26      -> 'ARRAY' '[' Sint '..' Sint ']' 'OF' Type
 27      -> 'RECORD' FieldList 'END'
 28
 28 SimpType -> '<IDENTIFIER>'
 29
 29
 29 FieldList -> IdentList ':' Type
 30           -> IdentList ':' Type ';' FieldList
 31           -> 'CASE' SimpType 'OF' CaseList
 32
 32
 32 CaseList -> CaseItem ';' CaseList
 33          -> CaseItem
 34 CaseItem -> ConstList ':' '(' FieldList ')'
 35
 35 PList -> PList PFDecl
 36       ->
 37 PFDecl -> ProcDecl
 38        -> FuncDecl
 39 ProcDecl -> ProcHead Parms ';' 'FORWARD' ';'
 40          -> ProcHead Parms ';' Pblk Pblock ';'
 41 ProcHead -> 'PROCEDURE' '<IDENTIFIER>'
 42 FuncDecl -> FuncHead Parms ':' '<IDENTIFIER>' ';' 'FORWARD' ';'
 43          -> FuncHead Parms ':' '<IDENTIFIER>' ';' Fblk Pblock ';'
 44 FuncHead -> 'FUNCTION' '<IDENTIFIER>'
 45 Parms ->
 46          -> '(' ParmList ')'
 47 ParmList -> ParmList ';' Parm
 48          -> Parm
 49 Parm -> 'VAR' IdentList ':' SimpType
 50      -> IdentList ':' SimpType
 51 Pblk ->
 52 Fblk ->
 53
 53 StmtList -> StmtList ';' Stmt
 54          -> Stmt
 55 Stmt -> 'IF' Boolean Then Stmt
 56      -> 'IF' Boolean Then Stmt Else Stmt
 57      -> 'WHILE' Boolean Do Stmt
 58      -> Repeat StmtList 'UNTIL' Boolean
 59      -> 'FOR' VarHead ':=' Boolean 'TO' Boolean Fup Stmt
 60      -> 'FOR' VarHead ':=' Boolean 'DOWNTO' Boolean Fdown Stmt
 61      -> Variable ':=' Boolean
 62      -> ProcCall
 63      -> '<IDENTIFIER>'
 64      -> 'GOTO' '<INTEGER>'
 65      -> Label ':' Stmt
 66      -> Block
 67      -> ReadWrite '(' IOList ')'
 68      ->
 69 Then -> 'THEN'
 70 Else -> 'ELSE'
 71 Fup -> 'DO'
 72 Fdown -> 'DO'
 73 Do -> 'DO'
 74 Repeat -> 'REPEAT'
 75 Label -> '<INTEGER>'
 76 ReadWrite -> 'READ'
 77           -> 'WRITE'
 78
 78 IOList -> IOList ',' IOItem
 79        -> IOItem
 80 IOItem -> Boolean
 81        -> '<string>'
 82
 82 ProcCall -> '<IDENTIFIER>' '(' BoolList ')'
 83 BoolList -> BoolList ',' Boolean
 84          -> Boolean
 85
 85 Boolean -> BoolTerm
 86         -> Boolean 'OR' BoolTerm
 87 BoolTerm -> BoolUnary
 88          -> BoolTerm 'AND' BoolUnary
 89 BoolUnary -> BoolPri
 90           -> 'NOT' BoolPri
 91 BoolPri -> Expr
 92         -> Expr Relop Expr
 93
 93 Relop -> '<'
 94       -> '>'
 95       -> '<='
 96       -> '>='
 97       -> '='
 98       -> '<>'
 99
 99 Expr -> Expr '+' Term
100      -> Expr '-' Term
101      -> Term
102 Term -> Term '*' Unary
103      -> Term '/' Unary
104      -> Term 'MOD' Unary
105      -> Term 'DIV' Unary
106      -> Unary
107 Unary -> Primary
108       -> '-' Primary
109 Primary -> '(' Boolean ')'
110         -> ProcCall
111         -> Variable
112         -> Constant
113
113 Variable -> VarHead VarExtension
114 VarHead -> '<IDENTIFIER>'
115 VarExtension -> VarExtension VarExt
116              ->
117 VarExt -> '[' BoolList ']'
118        -> '.' '<IDENTIFIER>'
119
119 Constant -> '<REAL>'
120          -> '<INTEGER>'
121          -> 'TRUE'
122          -> 'FALSE'
123 ConstList -> ConstList ',' Constant
124           -> Constant
125 Sint -> '<INTEGER>'
126      -> '-' '<INTEGER>'

------------------
Alphabetized productions

  7:  Block -> BEGIN StmtList END
 83:  BoolList -> BoolList , Boolean
 84:  BoolList -> Boolean
 91:  BoolPri -> Expr
 92:  BoolPri -> Expr Relop Expr
 87:  BoolTerm -> BoolUnary
 88:  BoolTerm -> BoolTerm AND BoolUnary
 89:  BoolUnary -> BoolPri
 90:  BoolUnary -> NOT BoolPri
 85:  Boolean -> BoolTerm
 86:  Boolean -> Boolean OR BoolTerm
 34:  CaseItem -> ConstList : ( FieldList )
 32:  CaseList -> CaseItem ; CaseList
 33:  CaseList -> CaseItem
123:  ConstList -> ConstList , Constant
124:  ConstList -> Constant
119:  Constant -> <REAL>
120:  Constant -> <INTEGER>
121:  Constant -> TRUE
122:  Constant -> FALSE
 73:  Do -> DO
 70:  Else -> ELSE
 99:  Expr -> Expr + Term
100:  Expr -> Expr - Term
101:  Expr -> Term
 52:  Fblk -> <empty>
 72:  Fdown -> DO
 29:  FieldList -> IdentList : Type
 30:  FieldList -> IdentList : Type ; FieldList
 31:  FieldList -> CASE SimpType OF CaseList
 42:  FuncDecl -> FuncHead Parms : <IDENTIFIER> ; FORWARD ;
 43:  FuncDecl -> FuncHead Parms : <IDENTIFIER> ; Fblk Pblock ;
 44:  FuncHead -> FUNCTION <IDENTIFIER>
 71:  Fup -> DO
 80:  IOItem -> Boolean
 81:  IOItem -> <string>
 78:  IOList -> IOList , IOItem
 79:  IOList -> IOItem
 18:  IdentList -> IdentList , <IDENTIFIER>
 19:  IdentList -> <IDENTIFIER>
  8:  LBList -> LABEL LabList ;
  9:  LBList -> <empty>
 10:  LabList -> LabList , <INTEGER>
 11:  LabList -> <INTEGER>
 75:  Label -> <INTEGER>
 37:  PFDecl -> ProcDecl
 38:  PFDecl -> FuncDecl
 35:  PList -> PList PFDecl
 36:  PList -> <empty>
  1: *PSG -> Program
 49:  Parm -> VAR IdentList : SimpType
 50:  Parm -> IdentList : SimpType
 47:  ParmList -> ParmList ; Parm
 48:  ParmList -> Parm
 45:  Parms -> <empty>
 46:  Parms -> ( ParmList )
  6:  Pbegin -> BEGIN
 51:  Pblk -> <empty>
  5:  Pblock -> LBList TYPList VRList PList Pbegin StmtList END
109:  Primary -> ( Boolean )
110:  Primary -> ProcCall
111:  Primary -> Variable
112:  Primary -> Constant
 82:  ProcCall -> <IDENTIFIER> ( BoolList )
 39:  ProcDecl -> ProcHead Parms ; FORWARD ;
 40:  ProcDecl -> ProcHead Parms ; Pblk Pblock ;
 41:  ProcHead -> PROCEDURE <IDENTIFIER>
  3:  ProgHead -> PROGRAM <IDENTIFIER>
  4:  ProgParms -> <empty>
  2:  Program -> ProgHead ProgParms ; Pblk Pblock .
 76:  ReadWrite -> READ
 77:  ReadWrite -> WRITE
 93:  Relop -> <
 94:  Relop -> >
 95:  Relop -> <=
 96:  Relop -> >=
 97:  Relop -> =
 98:  Relop -> <>
 74:  Repeat -> REPEAT
 28:  SimpType -> <IDENTIFIER>
125:  Sint -> <INTEGER>
126:  Sint -> - <INTEGER>
 55:  Stmt -> IF Boolean Then Stmt
 56:  Stmt -> IF Boolean Then Stmt Else Stmt
 57:  Stmt -> WHILE Boolean Do Stmt
 58:  Stmt -> Repeat StmtList UNTIL Boolean
 59:  Stmt -> FOR VarHead := Boolean TO Boolean Fup Stmt
 60:  Stmt -> FOR VarHead := Boolean DOWNTO Boolean Fdown Stmt
 61:  Stmt -> Variable := Boolean
 62:  Stmt -> ProcCall
 63:  Stmt -> <IDENTIFIER>
 64:  Stmt -> GOTO <INTEGER>
 65:  Stmt -> Label : Stmt
 66:  Stmt -> Block
 67:  Stmt -> ReadWrite ( IOList )
 68:  Stmt -> <empty>
 53:  StmtList -> StmtList ; Stmt
 54:  StmtList -> Stmt
 22:  TList -> TList ; TypItem
 23:  TList -> TypItem
 20:  TYPList -> TYPE TList ;
 21:  TYPList -> <empty>
102:  Term -> Term * Unary
103:  Term -> Term / Unary
104:  Term -> Term MOD Unary
105:  Term -> Term DIV Unary
106:  Term -> Unary
 69:  Then -> THEN
 24:  TypItem -> <IDENTIFIER> = Type
 25:  Type -> SimpType
 26:  Type -> ARRAY [ Sint .. Sint ] OF Type
 27:  Type -> RECORD FieldList END
107:  Unary -> Primary
108:  Unary -> - Primary
 15:  VList -> VList ; VarItem
 16:  VList -> VarItem
 12:  VRList -> Var VList ;
 13:  VRList -> <empty>
 14:  Var -> VAR
117:  VarExt -> [ BoolList ]
118:  VarExt -> . <IDENTIFIER>
115:  VarExtension -> VarExtension VarExt
116:  VarExtension -> <empty>
114:  VarHead -> <IDENTIFIER>
 17:  VarItem -> IdentList : Type
113:  Variable -> VarHead VarExtension
------------------------
The following special terminals have appeared
  in the grammar:
  <string>
------------------------
Checking for useless productions and the possibility that
 the goal symbol fails to derive any terminal string
A complaint means that the grammar should be reduced
 or repaired.
 ... no useless productions
 ... goal symbol derives at least one terminal string
------------------------
Checking for any tokens, terminal or nonterminal,
 that cannot be derived from the goal.
If any such are found, the grammar is not strongly
 connected and should be repaired.
  ... no problems detected
------------------------

Nullable nonterminals: Fblk LBList PList Parms Pblk ProgParms Stmt StmtList
  TYPList VRList VarExtension
------------------------
Checking for any single production cycles, e.g.
  A ->+ A
If one exists, the grammar is ambiguous.
  (A cycle may be reported more than once)

 ... no cycles detected
------------------------
Checking for any nonterminals that fail to derive a single
 terminal token.  A complaint is NOT an error.  You may choose
 to add an error production for each such nonterminal in order
 to improve error recovery.  Just create a unique error terminal
 token, e.g. ERROR_01, then add the production X -> ERROR_01

  NOTE: No production of the form Block -> x, where x is terminal
  NOTE: No production of the form BoolList -> x, where x is terminal
  NOTE: No production of the form BoolPri -> x, where x is terminal
  NOTE: No production of the form BoolTerm -> x, where x is terminal
  NOTE: No production of the form BoolUnary -> x, where x is terminal
  NOTE: No production of the form Boolean -> x, where x is terminal
  NOTE: No production of the form CaseItem -> x, where x is terminal
  NOTE: No production of the form CaseList -> x, where x is terminal
  NOTE: No production of the form ConstList -> x, where x is terminal
  NOTE: No production of the form Expr -> x, where x is terminal
  NOTE: No production of the form Fblk -> x, where x is terminal
  NOTE: No production of the form FieldList -> x, where x is terminal
  NOTE: No production of the form FuncDecl -> x, where x is terminal
  NOTE: No production of the form FuncHead -> x, where x is terminal
  NOTE: No production of the form IOList -> x, where x is terminal
  NOTE: No production of the form LBList -> x, where x is terminal
  NOTE: No production of the form PFDecl -> x, where x is terminal
  NOTE: No production of the form PList -> x, where x is terminal
  NOTE: No production of the form PSG -> x, where x is terminal
  NOTE: No production of the form Parm -> x, where x is terminal
  NOTE: No production of the form ParmList -> x, where x is terminal
  NOTE: No production of the form Parms -> x, where x is terminal
  NOTE: No production of the form Pblk -> x, where x is terminal
  NOTE: No production of the form Pblock -> x, where x is terminal
  NOTE: No production of the form Primary -> x, where x is terminal
  NOTE: No production of the form ProcCall -> x, where x is terminal
  NOTE: No production of the form ProcDecl -> x, where x is terminal
  NOTE: No production of the form ProcHead -> x, where x is terminal
  NOTE: No production of the form ProgHead -> x, where x is terminal
  NOTE: No production of the form ProgParms -> x, where x is terminal
  NOTE: No production of the form Program -> x, where x is terminal
  NOTE: No production of the form StmtList -> x, where x is terminal
  NOTE: No production of the form TList -> x, where x is terminal
  NOTE: No production of the form TYPList -> x, where x is terminal
  NOTE: No production of the form Term -> x, where x is terminal
  NOTE: No production of the form TypItem -> x, where x is terminal
  NOTE: No production of the form Type -> x, where x is terminal
  NOTE: No production of the form Unary -> x, where x is terminal
  NOTE: No production of the form VList -> x, where x is terminal
  NOTE: No production of the form VRList -> x, where x is terminal
  NOTE: No production of the form VarExt -> x, where x is terminal
  NOTE: No production of the form VarExtension -> x, where x is terminal
  NOTE: No production of the form VarItem -> x, where x is terminal
  NOTE: No production of the form Variable -> x, where x is terminal

No errors or warnings.