类C语言的Bison移位/减少错误
我的bison语法有问题，它给了我移位/减少错误，我已经为操作符定义了优先级 我知道这是由expr规则中的“expr binop expr”位引起的。这是我的bison文件和我得到的输出。任何帮助都将不胜感激类C语言的Bison移位/减少错误,bison,reduce,shift,Bison,Reduce,Shift,我的bison语法有问题，它给了我移位/减少错误，我已经为操作符定义了优先级 我知道这是由expr规则中的“expr binop expr”位引起的。这是我的bison文件和我得到的输出。任何帮助都将不胜感激 %token ID KEYWORD INTCON FLOATCON TYPE STRING %token IF WHILE FOR VOID RETURN %token AND_OP OR_OP EQ_OP NEQ_OP LEQ_OP GEQ_OP %left OR_OP %left A
%token ID KEYWORD INTCON FLOATCON TYPE STRING
%token IF WHILE FOR VOID RETURN
%token AND_OP OR_OP EQ_OP NEQ_OP LEQ_OP GEQ_OP
%left OR_OP
%left AND_OP
%nonassoc '<' LEQ_OP '>' GEQ_OP EQ_OP NEQ_OP
%left '+' '-'
%left '/' '*'
%right '!'
%%
expr : unop expr
| expr binop expr
| ID
| ID '[' expr ']'
| ID '(' expr_list ')'
| ID '(' ')'
| '(' expr ')'
| INTCON
| FLOATCON
;
expr_list : expr
| expr_list ',' expr
;
unop : '!' ;
binop : AND_OP | OR_OP | EQ_OP | NEQ_OP | '+' | '-' | '*' | '/' | LEQ_OP | '<' | GEQ_OP | '>' ;
%token ID关键字INTCON FLOATCON类型字符串
%无效返回时的令牌
%令牌和_OP或_opeq _opneq _opleq _opgeq _OP
%左或右
%左和右
%非ASSOC“GEQ_OP EQ_OP NEQ_OP
%左'+''-'
%左“/”*”
%对‘！’
%%
出口：unop出口
|expr binop expr
|身份证
|ID“['expr']”
|ID“（'expr_list'）”
|ID'（''）
|“（'expr'）”
|INTCON
|浮球
;
expr_列表：expr
|expr_列表“，”expr
;
联普办事处：“！”；
比诺普：和| OP |或| OP | EQ | OP | NEQ | OP |'+'-|'*'|'/'| LEQ | OP |'；
Terminals unused in grammar
KEYWORD
TYPE
STRING
IF
WHILE
FOR
VOID
RETURN
State 25 conflicts: 12 shift/reduce
State 31 conflicts: 12 shift/reduce
Grammar
0 $accept: expr $end
1 expr: unop expr
2 | expr binop expr
3 | ID
4 | ID '[' expr ']'
5 | ID '(' expr_list ')'
6 | ID '(' ')'
7 | '(' expr ')'
8 | INTCON
9 | FLOATCON
10 expr_list: expr
11 | expr_list ',' expr
12 unop: '!'
13 binop: AND_OP
14 | OR_OP
15 | EQ_OP
16 | NEQ_OP
17 | '+'
18 | '-'
19 | '*'
20 | '/'
21 | LEQ_OP
22 | '<'
23 | GEQ_OP
24 | '>'
Terminals, with rules where they appear
$end (0) 0
'!' (33) 12
'(' (40) 5 6 7
')' (41) 5 6 7
'*' (42) 19
'+' (43) 17
',' (44) 11
'-' (45) 18
'/' (47) 20
'<' (60) 22
'>' (62) 24
'[' (91) 4
']' (93) 4
error (256)
ID (258) 3 4 5 6
KEYWORD (259)
INTCON (260) 8
FLOATCON (261) 9
TYPE (262)
STRING (263)
IF (264)
WHILE (265)
FOR (266)
VOID (267)
RETURN (268)
AND_OP (269) 13
OR_OP (270) 14
EQ_OP (271) 15
NEQ_OP (272) 16
LEQ_OP (273) 21
GEQ_OP (274) 23
Nonterminals, with rules where they appear
$accept (32)
on left: 0
expr (33)
on left: 1 2 3 4 5 6 7 8 9, on right: 0 1 2 4 7 10 11
expr_list (34)
on left: 10 11, on right: 5 11
unop (35)
on left: 12, on right: 1
binop (36)
on left: 13 14 15 16 17 18 19 20 21 22 23 24, on right: 2
state 0
0 $accept: . expr $end
1 expr: . unop expr
2 | . expr binop expr
3 | . ID
4 | . ID '[' expr ']'
5 | . ID '(' expr_list ')'
6 | . ID '(' ')'
7 | . '(' expr ')'
8 | . INTCON
9 | . FLOATCON
12 unop: . '!'
ID shift, and go to state 1
INTCON shift, and go to state 2
FLOATCON shift, and go to state 3
'!' shift, and go to state 4
'(' shift, and go to state 5
expr go to state 6
unop go to state 7
state 1
3 expr: ID . [$end, AND_OP, OR_OP, EQ_OP, NEQ_OP, LEQ_OP, GEQ_OP, '<', '>', '+', '-', '/', '*', ']', ')', ',']
4 | ID . '[' expr ']'
5 | ID . '(' expr_list ')'
6 | ID . '(' ')'
'(' shift, and go to state 8
'[' shift, and go to state 9
$default reduce using rule 3 (expr)
state 2
8 expr: INTCON .
$default reduce using rule 8 (expr)
state 3
9 expr: FLOATCON .
$default reduce using rule 9 (expr)
state 4
12 unop: '!' .
$default reduce using rule 12 (unop)
state 5
1 expr: . unop expr
2 | . expr binop expr
3 | . ID
4 | . ID '[' expr ']'
5 | . ID '(' expr_list ')'
6 | . ID '(' ')'
7 | . '(' expr ')'
7 | '(' . expr ')'
8 | . INTCON
9 | . FLOATCON
12 unop: . '!'
ID shift, and go to state 1
INTCON shift, and go to state 2
FLOATCON shift, and go to state 3
'!' shift, and go to state 4
'(' shift, and go to state 5
expr go to state 10
unop go to state 7
state 6
0 $accept: expr . $end
2 expr: expr . binop expr
13 binop: . AND_OP
14 | . OR_OP
15 | . EQ_OP
16 | . NEQ_OP
17 | . '+'
18 | . '-'
19 | . '*'
20 | . '/'
21 | . LEQ_OP
22 | . '<'
23 | . GEQ_OP
24 | . '>'
$end shift, and go to state 11
AND_OP shift, and go to state 12
OR_OP shift, and go to state 13
EQ_OP shift, and go to state 14
NEQ_OP shift, and go to state 15
LEQ_OP shift, and go to state 16
GEQ_OP shift, and go to state 17
'<' shift, and go to state 18
'>' shift, and go to state 19
'+' shift, and go to state 20
'-' shift, and go to state 21
'/' shift, and go to state 22
'*' shift, and go to state 23
binop go to state 24
state 7
1 expr: . unop expr
1 | unop . expr
2 | . expr binop expr
3 | . ID
4 | . ID '[' expr ']'
5 | . ID '(' expr_list ')'
6 | . ID '(' ')'
7 | . '(' expr ')'
8 | . INTCON
9 | . FLOATCON
12 unop: . '!'
ID shift, and go to state 1
INTCON shift, and go to state 2
FLOATCON shift, and go to state 3
'!' shift, and go to state 4
'(' shift, and go to state 5
expr go to state 25
unop go to state 7
state 8
1 expr: . unop expr
2 | . expr binop expr
3 | . ID
4 | . ID '[' expr ']'
5 | . ID '(' expr_list ')'
5 | ID '(' . expr_list ')'
6 | . ID '(' ')'
6 | ID '(' . ')'
7 | . '(' expr ')'
8 | . INTCON
9 | . FLOATCON
10 expr_list: . expr
11 | . expr_list ',' expr
12 unop: . '!'
ID shift, and go to state 1
INTCON shift, and go to state 2
FLOATCON shift, and go to state 3
'!' shift, and go to state 4
'(' shift, and go to state 5
')' shift, and go to state 26
expr go to state 27
expr_list go to state 28
unop go to state 7
state 9
1 expr: . unop expr
2 | . expr binop expr
3 | . ID
4 | . ID '[' expr ']'
4 | ID '[' . expr ']'
5 | . ID '(' expr_list ')'
6 | . ID '(' ')'
7 | . '(' expr ')'
8 | . INTCON
9 | . FLOATCON
12 unop: . '!'
ID shift, and go to state 1
INTCON shift, and go to state 2
FLOATCON shift, and go to state 3
'!' shift, and go to state 4
'(' shift, and go to state 5
expr go to state 29
unop go to state 7
state 10
2 expr: expr . binop expr
7 | '(' expr . ')'
13 binop: . AND_OP
14 | . OR_OP
15 | . EQ_OP
16 | . NEQ_OP
17 | . '+'
18 | . '-'
19 | . '*'
20 | . '/'
21 | . LEQ_OP
22 | . '<'
23 | . GEQ_OP
24 | . '>'
AND_OP shift, and go to state 12
OR_OP shift, and go to state 13
EQ_OP shift, and go to state 14
NEQ_OP shift, and go to state 15
LEQ_OP shift, and go to state 16
GEQ_OP shift, and go to state 17
'<' shift, and go to state 18
'>' shift, and go to state 19
'+' shift, and go to state 20
'-' shift, and go to state 21
'/' shift, and go to state 22
'*' shift, and go to state 23
')' shift, and go to state 30
binop go to state 24
state 11
0 $accept: expr $end .
$default accept
state 12
13 binop: AND_OP .
$default reduce using rule 13 (binop)
state 13
14 binop: OR_OP .
$default reduce using rule 14 (binop)
state 14
15 binop: EQ_OP .
$default reduce using rule 15 (binop)
state 15
16 binop: NEQ_OP .
$default reduce using rule 16 (binop)
state 16
21 binop: LEQ_OP .
$default reduce using rule 21 (binop)
state 17
23 binop: GEQ_OP .
$default reduce using rule 23 (binop)
state 18
22 binop: '<' .
$default reduce using rule 22 (binop)
state 19
24 binop: '>' .
$default reduce using rule 24 (binop)
state 20
17 binop: '+' .
$default reduce using rule 17 (binop)
state 21
18 binop: '-' .
$default reduce using rule 18 (binop)
state 22
20 binop: '/' .
$default reduce using rule 20 (binop)
state 23
19 binop: '*' .
$default reduce using rule 19 (binop)
state 24
1 expr: . unop expr
2 | . expr binop expr
2 | expr binop . expr
3 | . ID
4 | . ID '[' expr ']'
5 | . ID '(' expr_list ')'
6 | . ID '(' ')'
7 | . '(' expr ')'
8 | . INTCON
9 | . FLOATCON
12 unop: . '!'
ID shift, and go to state 1
INTCON shift, and go to state 2
FLOATCON shift, and go to state 3
'!' shift, and go to state 4
'(' shift, and go to state 5
expr go to state 31
unop go to state 7
state 25
1 expr: unop expr . [$end, AND_OP, OR_OP, EQ_OP, NEQ_OP, LEQ_OP, GEQ_OP, '<', '>', '+', '-', '/', '*', ']', ')', ',']
2 | expr . binop expr
13 binop: . AND_OP
14 | . OR_OP
15 | . EQ_OP
16 | . NEQ_OP
17 | . '+'
18 | . '-'
19 | . '*'
20 | . '/'
21 | . LEQ_OP
22 | . '<'
23 | . GEQ_OP
24 | . '>'
AND_OP shift, and go to state 12
OR_OP shift, and go to state 13
EQ_OP shift, and go to state 14
NEQ_OP shift, and go to state 15
LEQ_OP shift, and go to state 16
GEQ_OP shift, and go to state 17
'<' shift, and go to state 18
'>' shift, and go to state 19
'+' shift, and go to state 20
'-' shift, and go to state 21
'/' shift, and go to state 22
'*' shift, and go to state 23
AND_OP [reduce using rule 1 (expr)]
OR_OP [reduce using rule 1 (expr)]
EQ_OP [reduce using rule 1 (expr)]
NEQ_OP [reduce using rule 1 (expr)]
LEQ_OP [reduce using rule 1 (expr)]
GEQ_OP [reduce using rule 1 (expr)]
'<' [reduce using rule 1 (expr)]
'>' [reduce using rule 1 (expr)]
'+' [reduce using rule 1 (expr)]
'-' [reduce using rule 1 (expr)]
'/' [reduce using rule 1 (expr)]
'*' [reduce using rule 1 (expr)]
$default reduce using rule 1 (expr)
binop go to state 24
state 26
6 expr: ID '(' ')' .
$default reduce using rule 6 (expr)
state 27
2 expr: expr . binop expr
10 expr_list: expr . [')', ',']
13 binop: . AND_OP
14 | . OR_OP
15 | . EQ_OP
16 | . NEQ_OP
17 | . '+'
18 | . '-'
19 | . '*'
20 | . '/'
21 | . LEQ_OP
22 | . '<'
23 | . GEQ_OP
24 | . '>'
AND_OP shift, and go to state 12
OR_OP shift, and go to state 13
EQ_OP shift, and go to state 14
NEQ_OP shift, and go to state 15
LEQ_OP shift, and go to state 16
GEQ_OP shift, and go to state 17
'<' shift, and go to state 18
'>' shift, and go to state 19
'+' shift, and go to state 20
'-' shift, and go to state 21
'/' shift, and go to state 22
'*' shift, and go to state 23
$default reduce using rule 10 (expr_list)
binop go to state 24
state 28
5 expr: ID '(' expr_list . ')'
11 expr_list: expr_list . ',' expr
')' shift, and go to state 32
',' shift, and go to state 33
state 29
2 expr: expr . binop expr
4 | ID '[' expr . ']'
13 binop: . AND_OP
14 | . OR_OP
15 | . EQ_OP
16 | . NEQ_OP
17 | . '+'
18 | . '-'
19 | . '*'
20 | . '/'
21 | . LEQ_OP
22 | . '<'
23 | . GEQ_OP
24 | . '>'
AND_OP shift, and go to state 12
OR_OP shift, and go to state 13
EQ_OP shift, and go to state 14
NEQ_OP shift, and go to state 15
LEQ_OP shift, and go to state 16
GEQ_OP shift, and go to state 17
'<' shift, and go to state 18
'>' shift, and go to state 19
'+' shift, and go to state 20
'-' shift, and go to state 21
'/' shift, and go to state 22
'*' shift, and go to state 23
']' shift, and go to state 34
binop go to state 24
state 30
7 expr: '(' expr ')' .
$default reduce using rule 7 (expr)
state 31
2 expr: expr . binop expr
2 | expr binop expr . [$end, AND_OP, OR_OP, EQ_OP, NEQ_OP, LEQ_OP, GEQ_OP, '<', '>', '+', '-', '/', '*', ']', ')', ',']
13 binop: . AND_OP
14 | . OR_OP
15 | . EQ_OP
16 | . NEQ_OP
17 | . '+'
18 | . '-'
19 | . '*'
20 | . '/'
21 | . LEQ_OP
22 | . '<'
23 | . GEQ_OP
24 | . '>'
AND_OP shift, and go to state 12
OR_OP shift, and go to state 13
EQ_OP shift, and go to state 14
NEQ_OP shift, and go to state 15
LEQ_OP shift, and go to state 16
GEQ_OP shift, and go to state 17
'<' shift, and go to state 18
'>' shift, and go to state 19
'+' shift, and go to state 20
'-' shift, and go to state 21
'/' shift, and go to state 22
'*' shift, and go to state 23
AND_OP [reduce using rule 2 (expr)]
OR_OP [reduce using rule 2 (expr)]
EQ_OP [reduce using rule 2 (expr)]
NEQ_OP [reduce using rule 2 (expr)]
LEQ_OP [reduce using rule 2 (expr)]
GEQ_OP [reduce using rule 2 (expr)]
'<' [reduce using rule 2 (expr)]
'>' [reduce using rule 2 (expr)]
'+' [reduce using rule 2 (expr)]
'-' [reduce using rule 2 (expr)]
'/' [reduce using rule 2 (expr)]
'*' [reduce using rule 2 (expr)]
$default reduce using rule 2 (expr)
binop go to state 24
state 32
5 expr: ID '(' expr_list ')' .
5 expr: ID '(' expr_list ')' .
$default reduce using rule 5 (expr)
state 33
1 expr: . unop expr
2 | . expr binop expr
3 | . ID
4 | . ID '[' expr ']'
5 | . ID '(' expr_list ')'
6 | . ID '(' ')'
7 | . '(' expr ')'
8 | . INTCON
9 | . FLOATCON
11 expr_list: expr_list ',' . expr
12 unop: . '!'
ID shift, and go to state 1
INTCON shift, and go to state 2
FLOATCON shift, and go to state 3
'!' shift, and go to state 4
'(' shift, and go to state 5
expr go to state 35
unop go to state 7
state 34
4 expr: ID '[' expr ']' .
$default reduce using rule 4 (expr)
state 35
2 expr: expr . binop expr
11 expr_list: expr_list ',' expr . [')', ',']
13 binop: . AND_OP
14 | . OR_OP
15 | . EQ_OP
16 | . NEQ_OP
17 | . '+'
18 | . '-'
19 | . '*'
20 | . '/'
21 | . LEQ_OP
22 | . '<'
23 | . GEQ_OP
24 | . '>'
AND_OP shift, and go to state 12
OR_OP shift, and go to state 13
EQ_OP shift, and go to state 14
NEQ_OP shift, and go to state 15
LEQ_OP shift, and go to state 16
GEQ_OP shift, and go to state 17
'<' shift, and go to state 18
'>' shift, and go to state 19
'+' shift, and go to state 20
'-' shift, and go to state 21
'/' shift, and go to state 22
'*' shift, and go to state 23
$default reduce using rule 11 (expr_list)
binop go to state 24
语法中未使用的终端
关键词
类型
一串
如果
虽然
对于
无效的
返回
状态25冲突：12班/减少
状态31冲突：12班次/减少
文法
0$accept:expr$end
1出口：unop出口
2 | expr binop expr
3 | ID
4 | ID'['expr']
5 | ID'（'expr_list'）'
6 | ID'（''）
7 |'（'expr'）'
8 |国际会议
9 |浮球
10出口清单：出口
11 | expr|u列表“，”expr
12 unop:“！”
13副词：和
14 |或| OP
15 | EQ_OP
16 | NEQ|U OP
17 | '+'
18 | '-'
19 | '*'
20 | '/'
21 |列库OP
22 | ''
终端，以及它们出现的位置的规则
$end（0）0
'!' (33) 12
'(' (40) 5 6 7
')' (41) 5 6 7
'*' (42) 19
'+' (43) 17
',' (44) 11
'-' (45) 18
'/' (47) 20
'' (62) 24
'[' (91) 4
']' (93) 4
错误（256）
ID（258）3 4 5 6
关键词（259）
INTCON（260）8
FLOATCON（261）9
类型（262）
字符串（263）
如果（264）
而(265)
用于（266）
无效（267）
返回（268）
和_OP（269）13
或OP（270）14
等式运算（271）15
NEQ_OP（272）16
列库OP（273）21
GEQ_OP（274）23
非终结符，在它们出现的地方带有规则
$accept（32）
左边：0
专家（33）
左侧：123456789，右侧：01124771011
出口清单（34）
左边：1011，右边：511
联普办事处（35）
左边：12，右边：1
比诺普（36）
左侧：13141561718192122324，右侧：2
州0
0$accept:。expr$end
1表达式：。unop expr
2 | . expr binop expr
3 | . 身份证件
4 | . ID“['expr']”
5 | . ID“（'expr_list'）”
6 | . ID'（''）
7 | . '（'expr'）'
8 | . INTCON
9 | . 浮球
12 unop:“！”
ID转换，并转到状态1
INTCON切换，并进入状态2
FLOATCON切换，并进入状态3
'!' 换档，然后转到状态4
“（”shift，然后转到状态5
expr转到状态6
联普办事处前往第7国
国家1
3 expr:ID.[$end，AND_OP，OR_OP，EQ_OP，NEQ_OP，LEQ_OP，GEQ_OP，'，'+'，'-'，'/'，'*'，']，'），'，']
4 |同上。”['expr']'
5 |同上。”（“expr_列表”）
6 |同上。”(' ')'
“（”shift，然后转到状态8
“[”shift，然后转到状态9
$default REDUCT使用规则3（expr）
国家2
8 expr:INTCON。
$default使用规则8减少（expr）
国家3
9 expr:FLOATCON。
$default REDUCT使用规则9（expr）
国家4
12 unop:“！”。
$default使用规则12减少（unop）
国家5
1表达式：。unop表达式
2 | expr binop expr
3 | ID
4 |.ID'['expr']
5 |.ID'（'expr_list'）'
6 |.ID'（''）
7 |..（“expr”）'
7 |'（'.expr'）'
8 | INTCON
9 |浮球
12 unop:“！”
ID转换，并转到状态1
INTCON切换，并进入状态2
FLOATCON切换，并进入状态3
“！”换班，然后进入状态4
“（”shift，然后转到状态5
expr进入状态10
联普办事处前往第7国
国家6
0$accept:expr.$end
2表达式：表达式binop表达式
13副词：。和
14 |或| OP
15 | EQ|U OP
16 | NEQ|U OP
17 | . '+'
18 | . '-'
19 | . '*'
20 | . '/'
21 | LEQ|u OP
22 | . ''
$end shift，进入状态11
然后轮班，进入第12状态
或上一班，进入第13状态
均衡器操作移位，并进入状态14
NEQ_操作班次，进入状态15
LEQ_OP倒班，进入状态16
GEQ_OP shift，并进入状态17
“”移动，然后转到状态19
“+”移位，然后转到状态20
“-”切换，进入状态21
“/”shift，然后转到状态22
“*”移位，然后转到状态23
binop进入状态24
国家7
1表达式：。unop表达式
1 | unop.expr
2 | expr binop expr
3 | ID
4 |.ID'['expr']
5 |.ID'（'expr_list'）'
6 |.ID'（''）
7 |..（“expr”）'
8 | INTCON
9 |浮球
12 unop:“！”
ID转换，并转到状态1
INTCON切换，并进入状态2
FLOATCON切换，并进入状态3
“！”换班，然后进入状态4
“（”shift，然后转到状态5
expr进入状态25
联普办事处前往第7国
国家8
1表达式：。unop表达式
2 | expr binop expr
3 | ID
4 |.ID'['expr']
5 |.ID'（'expr_list'）'
5 | ID'（'.expr_list'）'
6 |.ID'（''）
6 | ID'（'）'
7 |..（“expr”）'
8 | INTCON
9 |浮球
10 expr\u列表：.expr
11 |.expr_列表“，”expr
12 unop:“！”
ID转换，并转到状态1
INTCON切换，并进入状态2
FLOATCON切换，并进入状态3
“！”换班，然后进入状态4
“（”shift，然后转到状态5
“）”切换，然后转到状态26
expr去州27
expr_列表进入状态28
联普办事处前往第7国
州9
1 e
%token ID KEYWORD INTCON FLOATCON TYPE STRING
%token IF WHILE FOR VOID RETURN
%token AND_OP OR_OP EQ_OP NEQ_OP LEQ_OP GEQ_OP
%left "||"
%left "&&"
%nonassoc '<' "<=" '>' ">=" "==" "!="
%left '+' '-'
%left '/' '*'
%right '!'
%%
expr : ID
| ID '[' expr ']'
| ID '(' expr_list ')'
| ID '(' ')'
| '(' expr ')'
| INTCON
| FLOATCON
| '!' expr
| '-' expr
| expr '+' expr
| expr '-' expr
| expr '/' expr
| expr '*' expr
| expr '<' expr
| expr '>' expr
| expr "<=" expr
| expr ">=" expr
| expr "==" expr
| expr "!=" expr
| expr "&&" expr
| expr "||" expr
;
expr_list : expr
| expr_list ',' expr
;
%%
expr: expr '+' expr
| expr '-' expr
| expr '*' expr
|...