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Rules useless in parser due to conflicts
14 LoopStmt: Bracket Bracket StatementList '}'
State 30 conflicts: 2 shift/reduce
State 38 conflicts: 2 shift/reduce
State 39 conflicts: 5 shift/reduce
State 41 conflicts: 5 shift/reduce
State 129 conflicts: 45 reduce/reduce
State 142 conflicts: 2 shift/reduce, 21 reduce/reduce
Grammar
0 $accept: Program $end
1 Program: StatementList
2 StatementList: StatementList Statement SEMICOLON
3 | StatementList Statement
4 | Statement SEMICOLON
5 | Statement
6 Statement: PrintStmt
7 | DeclarationStmt
8 | IfStmt
9 | Expression
10 | LoopStmt
11 PrintStmt: PRINT Bracket
12 IfStmt: Bracket Bracket StatementList '}'
13 | ELSE
14 LoopStmt: Bracket Bracket StatementList '}'
15 | FOR '(' Expression SEMICOLON Expression SEMICOLON Expression ')' Bracket StatementList Bracket
16 DeclarationStmt: Type IDENT
17 | Type IDENT '[' Expression ']'
18 | Type IDENT ASSIGN Expression
19 Type: INT
20 | FLOAT
21 | STRING
22 | BOOL
23 Expression: AssignmentExpr
24 | ArithmeticExpr
25 | ConversionExpr
26 | TermExpr
27 | BoolExpr
28 AssignmentExpr: ID ASSIGN Expression
29 | ID '[' Expression ']' ASSIGN Expression
30 | Expression ADD_ASSIGN Expression
31 | Expression SUB_ASSIGN Expression
32 | Expression MUL_ASSIGN Expression
33 | Expression QUO_ASSIGN Expression
34 | Expression REM_ASSIGN Expression
35 | Num ASSIGN Expression
36 | Num ADD_ASSIGN Expression
37 | Num SUB_ASSIGN Expression
38 | Num MUL_ASSIGN Expression
39 | Num QUO_ASSIGN Expression
40 | Num REM_ASSIGN Expression
41 ArithmeticExpr: Expression ADD Expression
42 | Expression SUB Expression
43 | Expression MUL Expression
44 | Expression QUO Expression
45 | Expression REM Expression
46 ConversionExpr: '(' INT ')' TermExpr
47 | '(' FLOAT ')' TermExpr
48 BoolExpr: LogicalExpr
49 | CompareExpr
50 LogicalExpr: Expression LOR Expression
51 | Expression LAND Expression
52 CompareExpr: Expression GTR Expression
53 | Expression LSS Expression
54 | Expression GEQ Expression
55 | Expression LEQ Expression
56 | Expression EQL Expression
57 | Expression NEQ Expression
58 Bool: TRUE
59 | FALSE
60 TermExpr: ID
61 | ID '[' Expression ']'
62 | STRING_LIT
63 | Num
64 | Bracket
65 | Bool
66 | TermExpr INC
67 | TermExpr DEC
68 | ADD Num
69 | SUB Num
70 | NOT Expression
71 Num: INT_LIT
72 | FLOAT_LIT
73 ID: IDENT
74 Bracket: '(' Expression ')'
75 | '{'
76 | '}'
77 | WHILE Bracket
78 | IF Bracket
Terminals, with rules where they appear
$end (0) 0
'(' (40) 15 46 47 74
')' (41) 15 46 47 74
'[' (91) 17 29 61
']' (93) 17 29 61
'{' (123) 75
'}' (125) 12 14 76
error (256)
ADD (258) 41 68
SUB (259) 42 69
MUL (260) 43
QUO (261) 44
REM (262) 45
INT (263) 19 46
FLOAT (264) 20 47
BOOL (265) 22
STRING (266) 21
INC (267) 66
DEC (268) 67
GEQ (269) 54
LEQ (270) 55
EQL (271) 56
NEQ (272) 57
LSS (273) 53
GTR (274) 52
ASSIGN (275) 18 28 29 35
ADD_ASSIGN (276) 30 36
SUB_ASSIGN (277) 31 37
MUL_ASSIGN (278) 32 38
QUO_ASSIGN (279) 33 39
REM_ASSIGN (280) 34 40
LAND (281) 51
LOR (282) 50
NOT (283) 70
SEMICOLON (284) 2 4 15
IF (285) 78
ELSE (286) 13
WHILE (287) 77
FOR (288) 15
PRINT (289) 11
TRUE (290) 58
FALSE (291) 59
INT_LIT <i_val> (292) 71
FLOAT_LIT <f_val> (293) 72
STRING_LIT <s_val> (294) 62
IDENT <id> (295) 16 17 18 73
Nonterminals, with rules where they appear
$accept (47)
on left: 0
Program (48)
on left: 1
on right: 0
StatementList (49)
on left: 2 3 4 5
on right: 1 2 3 12 14 15
Statement (50)
on left: 6 7 8 9 10
on right: 2 3 4 5
PrintStmt (51)
on left: 11
on right: 6
IfStmt (52)
on left: 12 13
on right: 8
LoopStmt (53)
on left: 14 15
on right: 10
DeclarationStmt (54)
on left: 16 17 18
on right: 7
Type <type> (55)
on left: 19 20 21 22
on right: 16 17 18
Expression <type> (56)
on left: 23 24 25 26 27
on right: 9 15 17 18 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 50 51 52 53 54 55 56 57 61 70 74
AssignmentExpr <type> (57)
on left: 28 29 30 31 32 33 34 35 36 37 38 39 40
on right: 23
ArithmeticExpr <type> (58)
on left: 41 42 43 44 45
on right: 24
ConversionExpr <type> (59)
on left: 46 47
on right: 25
BoolExpr <type> (60)
on left: 48 49
on right: 27
LogicalExpr <boool> (61)
on left: 50 51
on right: 48
CompareExpr <boool> (62)
on left: 52 53 54 55 56 57
on right: 49
Bool <type> (63)
on left: 58 59
on right: 65
TermExpr <type> (64)
on left: 60 61 62 63 64 65 66 67 68 69 70
on right: 26 46 47 66 67
Num <type> (65)
on left: 71 72
on right: 35 36 37 38 39 40 63 68 69
ID <id> (66)
on left: 73
on right: 28 29 60 61
Bracket <type> (67)
on left: 74 75 76 77 78
on right: 11 12 14 15 64 77 78
State 0
0 $accept: . Program $end
ADD shift, and go to state 1
SUB shift, and go to state 2
INT shift, and go to state 3
FLOAT shift, and go to state 4
BOOL shift, and go to state 5
STRING shift, and go to state 6
NOT shift, and go to state 7
IF shift, and go to state 8
ELSE shift, and go to state 9
WHILE shift, and go to state 10
FOR shift, and go to state 11
PRINT shift, and go to state 12
TRUE shift, and go to state 13
FALSE shift, and go to state 14
'{' shift, and go to state 15
'}' shift, and go to state 16
'(' shift, and go to state 17
INT_LIT shift, and go to state 18
FLOAT_LIT shift, and go to state 19
STRING_LIT shift, and go to state 20
IDENT shift, and go to state 21
Program go to state 22
StatementList go to state 23
Statement go to state 24
PrintStmt go to state 25
IfStmt go to state 26
LoopStmt go to state 27
DeclarationStmt go to state 28
Type go to state 29
Expression go to state 30
AssignmentExpr go to state 31
ArithmeticExpr go to state 32
ConversionExpr go to state 33
BoolExpr go to state 34
LogicalExpr go to state 35
CompareExpr go to state 36
Bool go to state 37
TermExpr go to state 38
Num go to state 39
ID go to state 40
Bracket go to state 41
State 1
68 TermExpr: ADD . Num
INT_LIT shift, and go to state 18
FLOAT_LIT shift, and go to state 19
Num go to state 42
State 2
69 TermExpr: SUB . Num
INT_LIT shift, and go to state 18
FLOAT_LIT shift, and go to state 19
Num go to state 43
State 3
19 Type: INT .
$default reduce using rule 19 (Type)
State 4
20 Type: FLOAT .
$default reduce using rule 20 (Type)
State 5
22 Type: BOOL .
$default reduce using rule 22 (Type)
State 6
21 Type: STRING .
$default reduce using rule 21 (Type)
State 7
70 TermExpr: NOT . Expression
ADD shift, and go to state 1
SUB shift, and go to state 2
NOT shift, and go to state 7
IF shift, and go to state 8
WHILE shift, and go to state 10
TRUE shift, and go to state 13
FALSE shift, and go to state 14
'{' shift, and go to state 15
'}' shift, and go to state 16
'(' shift, and go to state 17
INT_LIT shift, and go to state 18
FLOAT_LIT shift, and go to state 19
STRING_LIT shift, and go to state 20
IDENT shift, and go to state 21
Expression go to state 44
AssignmentExpr go to state 31
ArithmeticExpr go to state 32
ConversionExpr go to state 33
BoolExpr go to state 34
LogicalExpr go to state 35
CompareExpr go to state 36
Bool go to state 37
TermExpr go to state 38
Num go to state 39
ID go to state 40
Bracket go to state 45
State 8
78 Bracket: IF . Bracket
IF shift, and go to state 8
WHILE shift, and go to state 10
'{' shift, and go to state 15
'}' shift, and go to state 16
'(' shift, and go to state 46
Bracket go to state 47
State 9
13 IfStmt: ELSE .
$default reduce using rule 13 (IfStmt)
State 10
77 Bracket: WHILE . Bracket
IF shift, and go to state 8
WHILE shift, and go to state 10
'{' shift, and go to state 15
'}' shift, and go to state 16
'(' shift, and go to state 46
Bracket go to state 48
State 11
15 LoopStmt: FOR . '(' Expression SEMICOLON Expression SEMICOLON Expression ')' Bracket StatementList Bracket
'(' shift, and go to state 49
State 12
11 PrintStmt: PRINT . Bracket
IF shift, and go to state 8
WHILE shift, and go to state 10
'{' shift, and go to state 15
'}' shift, and go to state 16
'(' shift, and go to state 46
Bracket go to state 50
State 13
58 Bool: TRUE .
$default reduce using rule 58 (Bool)
State 14
59 Bool: FALSE .
$default reduce using rule 59 (Bool)
State 15
75 Bracket: '{' .
$default reduce using rule 75 (Bracket)
State 16
76 Bracket: '}' .
$default reduce using rule 76 (Bracket)
State 17
46 ConversionExpr: '(' . INT ')' TermExpr
47 | '(' . FLOAT ')' TermExpr
74 Bracket: '(' . Expression ')'
ADD shift, and go to state 1
SUB shift, and go to state 2
INT shift, and go to state 51
FLOAT shift, and go to state 52
NOT shift, and go to state 7
IF shift, and go to state 8
WHILE shift, and go to state 10
TRUE shift, and go to state 13
FALSE shift, and go to state 14
'{' shift, and go to state 15
'}' shift, and go to state 16
'(' shift, and go to state 17
INT_LIT shift, and go to state 18
FLOAT_LIT shift, and go to state 19
STRING_LIT shift, and go to state 20
IDENT shift, and go to state 21
Expression go to state 53
AssignmentExpr go to state 31
ArithmeticExpr go to state 32
ConversionExpr go to state 33
BoolExpr go to state 34
LogicalExpr go to state 35
CompareExpr go to state 36
Bool go to state 37
TermExpr go to state 38
Num go to state 39
ID go to state 40
Bracket go to state 45
State 18
71 Num: INT_LIT .
$default reduce using rule 71 (Num)
State 19
72 Num: FLOAT_LIT .
$default reduce using rule 72 (Num)
State 20
62 TermExpr: STRING_LIT .
$default reduce using rule 62 (TermExpr)
State 21
73 ID: IDENT .
$default reduce using rule 73 (ID)
State 22
0 $accept: Program . $end
$end shift, and go to state 54
State 23
1 Program: StatementList .
2 StatementList: StatementList . Statement SEMICOLON
3 | StatementList . Statement
ADD shift, and go to state 1
SUB shift, and go to state 2
INT shift, and go to state 3
FLOAT shift, and go to state 4
BOOL shift, and go to state 5
STRING shift, and go to state 6
NOT shift, and go to state 7
IF shift, and go to state 8
ELSE shift, and go to state 9
WHILE shift, and go to state 10
FOR shift, and go to state 11
PRINT shift, and go to state 12
TRUE shift, and go to state 13
FALSE shift, and go to state 14
'{' shift, and go to state 15
'}' shift, and go to state 16
'(' shift, and go to state 17
INT_LIT shift, and go to state 18
FLOAT_LIT shift, and go to state 19
STRING_LIT shift, and go to state 20
IDENT shift, and go to state 21
$default reduce using rule 1 (Program)
Statement go to state 55
PrintStmt go to state 25
IfStmt go to state 26
LoopStmt go to state 27
DeclarationStmt go to state 28
Type go to state 29
Expression go to state 30
AssignmentExpr go to state 31
ArithmeticExpr go to state 32
ConversionExpr go to state 33
BoolExpr go to state 34
LogicalExpr go to state 35
CompareExpr go to state 36
Bool go to state 37
TermExpr go to state 38
Num go to state 39
ID go to state 40
Bracket go to state 41
State 24
4 StatementList: Statement . SEMICOLON
5 | Statement .
SEMICOLON shift, and go to state 56
$default reduce using rule 5 (StatementList)
State 25
6 Statement: PrintStmt .
$default reduce using rule 6 (Statement)
State 26
8 Statement: IfStmt .
$default reduce using rule 8 (Statement)
State 27
10 Statement: LoopStmt .
$default reduce using rule 10 (Statement)
State 28
7 Statement: DeclarationStmt .
$default reduce using rule 7 (Statement)
State 29
16 DeclarationStmt: Type . IDENT
17 | Type . IDENT '[' Expression ']'
18 | Type . IDENT ASSIGN Expression
IDENT shift, and go to state 57
State 30
9 Statement: Expression .
30 AssignmentExpr: Expression . ADD_ASSIGN Expression
31 | Expression . SUB_ASSIGN Expression
32 | Expression . MUL_ASSIGN Expression
33 | Expression . QUO_ASSIGN Expression
34 | Expression . REM_ASSIGN Expression
41 ArithmeticExpr: Expression . ADD Expression
42 | Expression . SUB Expression
43 | Expression . MUL Expression
44 | Expression . QUO Expression
45 | Expression . REM Expression
50 LogicalExpr: Expression . LOR Expression
51 | Expression . LAND Expression
52 CompareExpr: Expression . GTR Expression
53 | Expression . LSS Expression
54 | Expression . GEQ Expression
55 | Expression . LEQ Expression
56 | Expression . EQL Expression
57 | Expression . NEQ Expression
ADD shift, and go to state 58
SUB shift, and go to state 59
MUL shift, and go to state 60
QUO shift, and go to state 61
REM shift, and go to state 62
GEQ shift, and go to state 63
LEQ shift, and go to state 64
EQL shift, and go to state 65
NEQ shift, and go to state 66
LSS shift, and go to state 67
GTR shift, and go to state 68
ADD_ASSIGN shift, and go to state 69
SUB_ASSIGN shift, and go to state 70
MUL_ASSIGN shift, and go to state 71
QUO_ASSIGN shift, and go to state 72
REM_ASSIGN shift, and go to state 73
LAND shift, and go to state 74
LOR shift, and go to state 75
ADD [reduce using rule 9 (Statement)]
SUB [reduce using rule 9 (Statement)]
$default reduce using rule 9 (Statement)
State 31
23 Expression: AssignmentExpr .
$default reduce using rule 23 (Expression)
State 32
24 Expression: ArithmeticExpr .
$default reduce using rule 24 (Expression)
State 33
25 Expression: ConversionExpr .
$default reduce using rule 25 (Expression)
State 34
27 Expression: BoolExpr .
$default reduce using rule 27 (Expression)
State 35
48 BoolExpr: LogicalExpr .
$default reduce using rule 48 (BoolExpr)
State 36
49 BoolExpr: CompareExpr .
$default reduce using rule 49 (BoolExpr)
State 37
65 TermExpr: Bool .
$default reduce using rule 65 (TermExpr)
State 38
26 Expression: TermExpr .
66 TermExpr: TermExpr . INC
67 | TermExpr . DEC
INC shift, and go to state 76
DEC shift, and go to state 77
INC [reduce using rule 26 (Expression)]
DEC [reduce using rule 26 (Expression)]
$default reduce using rule 26 (Expression)
State 39
35 AssignmentExpr: Num . ASSIGN Expression
36 | Num . ADD_ASSIGN Expression
37 | Num . SUB_ASSIGN Expression
38 | Num . MUL_ASSIGN Expression
39 | Num . QUO_ASSIGN Expression
40 | Num . REM_ASSIGN Expression
63 TermExpr: Num .
ASSIGN shift, and go to state 78
ADD_ASSIGN shift, and go to state 79
SUB_ASSIGN shift, and go to state 80
MUL_ASSIGN shift, and go to state 81
QUO_ASSIGN shift, and go to state 82
REM_ASSIGN shift, and go to state 83
ADD_ASSIGN [reduce using rule 63 (TermExpr)]
SUB_ASSIGN [reduce using rule 63 (TermExpr)]
MUL_ASSIGN [reduce using rule 63 (TermExpr)]
QUO_ASSIGN [reduce using rule 63 (TermExpr)]
REM_ASSIGN [reduce using rule 63 (TermExpr)]
$default reduce using rule 63 (TermExpr)
State 40
28 AssignmentExpr: ID . ASSIGN Expression
29 | ID . '[' Expression ']' ASSIGN Expression
60 TermExpr: ID .
61 | ID . '[' Expression ']'
ASSIGN shift, and go to state 84
'[' shift, and go to state 85
$default reduce using rule 60 (TermExpr)
State 41
12 IfStmt: Bracket . Bracket StatementList '}'
14 LoopStmt: Bracket . Bracket StatementList '}'
64 TermExpr: Bracket .
IF shift, and go to state 8
WHILE shift, and go to state 10
'{' shift, and go to state 15
'}' shift, and go to state 16
'(' shift, and go to state 46
IF [reduce using rule 64 (TermExpr)]
WHILE [reduce using rule 64 (TermExpr)]
'{' [reduce using rule 64 (TermExpr)]
'}' [reduce using rule 64 (TermExpr)]
'(' [reduce using rule 64 (TermExpr)]
$default reduce using rule 64 (TermExpr)
Bracket go to state 86
State 42
68 TermExpr: ADD Num .
$default reduce using rule 68 (TermExpr)
State 43
69 TermExpr: SUB Num .
$default reduce using rule 69 (TermExpr)
State 44
30 AssignmentExpr: Expression . ADD_ASSIGN Expression
31 | Expression . SUB_ASSIGN Expression
32 | Expression . MUL_ASSIGN Expression
33 | Expression . QUO_ASSIGN Expression
34 | Expression . REM_ASSIGN Expression
41 ArithmeticExpr: Expression . ADD Expression
42 | Expression . SUB Expression
43 | Expression . MUL Expression
44 | Expression . QUO Expression
45 | Expression . REM Expression
50 LogicalExpr: Expression . LOR Expression
51 | Expression . LAND Expression
52 CompareExpr: Expression . GTR Expression
53 | Expression . LSS Expression
54 | Expression . GEQ Expression
55 | Expression . LEQ Expression
56 | Expression . EQL Expression
57 | Expression . NEQ Expression
70 TermExpr: NOT Expression .
$default reduce using rule 70 (TermExpr)
State 45
64 TermExpr: Bracket .
$default reduce using rule 64 (TermExpr)
State 46
74 Bracket: '(' . Expression ')'
ADD shift, and go to state 1
SUB shift, and go to state 2
NOT shift, and go to state 7
IF shift, and go to state 8
WHILE shift, and go to state 10
TRUE shift, and go to state 13
FALSE shift, and go to state 14
'{' shift, and go to state 15
'}' shift, and go to state 16
'(' shift, and go to state 17
INT_LIT shift, and go to state 18
FLOAT_LIT shift, and go to state 19
STRING_LIT shift, and go to state 20
IDENT shift, and go to state 21
Expression go to state 53
AssignmentExpr go to state 31
ArithmeticExpr go to state 32
ConversionExpr go to state 33
BoolExpr go to state 34
LogicalExpr go to state 35
CompareExpr go to state 36
Bool go to state 37
TermExpr go to state 38
Num go to state 39
ID go to state 40
Bracket go to state 45
State 47
78 Bracket: IF Bracket .
$default reduce using rule 78 (Bracket)
State 48
77 Bracket: WHILE Bracket .
$default reduce using rule 77 (Bracket)
State 49
15 LoopStmt: FOR '(' . Expression SEMICOLON Expression SEMICOLON Expression ')' Bracket StatementList Bracket
ADD shift, and go to state 1
SUB shift, and go to state 2
NOT shift, and go to state 7
IF shift, and go to state 8
WHILE shift, and go to state 10
TRUE shift, and go to state 13
FALSE shift, and go to state 14
'{' shift, and go to state 15
'}' shift, and go to state 16
'(' shift, and go to state 17
INT_LIT shift, and go to state 18
FLOAT_LIT shift, and go to state 19
STRING_LIT shift, and go to state 20
IDENT shift, and go to state 21
Expression go to state 87
AssignmentExpr go to state 31
ArithmeticExpr go to state 32
ConversionExpr go to state 33
BoolExpr go to state 34
LogicalExpr go to state 35
CompareExpr go to state 36
Bool go to state 37
TermExpr go to state 38
Num go to state 39
ID go to state 40
Bracket go to state 45
State 50
11 PrintStmt: PRINT Bracket .
$default reduce using rule 11 (PrintStmt)
State 51
46 ConversionExpr: '(' INT . ')' TermExpr
')' shift, and go to state 88
State 52
47 ConversionExpr: '(' FLOAT . ')' TermExpr
')' shift, and go to state 89
State 53
30 AssignmentExpr: Expression . ADD_ASSIGN Expression
31 | Expression . SUB_ASSIGN Expression
32 | Expression . MUL_ASSIGN Expression
33 | Expression . QUO_ASSIGN Expression
34 | Expression . REM_ASSIGN Expression
41 ArithmeticExpr: Expression . ADD Expression
42 | Expression . SUB Expression
43 | Expression . MUL Expression
44 | Expression . QUO Expression
45 | Expression . REM Expression
50 LogicalExpr: Expression . LOR Expression
51 | Expression . LAND Expression
52 CompareExpr: Expression . GTR Expression
53 | Expression . LSS Expression
54 | Expression . GEQ Expression
55 | Expression . LEQ Expression
56 | Expression . EQL Expression
57 | Expression . NEQ Expression
74 Bracket: '(' Expression . ')'
ADD shift, and go to state 58
SUB shift, and go to state 59
MUL shift, and go to state 60
QUO shift, and go to state 61
REM shift, and go to state 62
GEQ shift, and go to state 63
LEQ shift, and go to state 64
EQL shift, and go to state 65
NEQ shift, and go to state 66
LSS shift, and go to state 67
GTR shift, and go to state 68
ADD_ASSIGN shift, and go to state 69
SUB_ASSIGN shift, and go to state 70
MUL_ASSIGN shift, and go to state 71
QUO_ASSIGN shift, and go to state 72
REM_ASSIGN shift, and go to state 73
LAND shift, and go to state 74
LOR shift, and go to state 75
')' shift, and go to state 90
State 54
0 $accept: Program $end .
$default accept
State 55
2 StatementList: StatementList Statement . SEMICOLON
3 | StatementList Statement .
SEMICOLON shift, and go to state 91
$default reduce using rule 3 (StatementList)
State 56
4 StatementList: Statement SEMICOLON .
$default reduce using rule 4 (StatementList)
State 57
16 DeclarationStmt: Type IDENT .
17 | Type IDENT . '[' Expression ']'
18 | Type IDENT . ASSIGN Expression