380a6c91bc
Among all the modifications, this new byacc also solves a 14 year old bug [1] PR: bin/23254 [1] Submitted by: marka@nominum.com [1] MFC after: 3 weeks
558 lines
11 KiB
Plaintext
558 lines
11 KiB
Plaintext
0 $accept : list $end
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1 list :
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2 | list stat '\n'
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3 | list error '\n'
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4 stat : expr
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5 | LETTER '=' expr
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6 expr : '(' expr ')'
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7 | expr "ADD" expr
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8 | expr "SUB" expr
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9 | expr "MUL" expr
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10 | expr "DIV" expr
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11 | expr "MOD" expr
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12 | expr "AND" expr
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13 | expr '|' expr
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14 | "SUB" expr
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15 | LETTER
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16 | number
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17 number : DIGIT
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18 | number DIGIT
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state 0
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$accept : . list $end (0)
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list : . (1)
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. reduce 1
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list goto 1
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state 1
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$accept : list . $end (0)
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list : list . stat '\n' (2)
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list : list . error '\n' (3)
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$end accept
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error shift 2
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"SUB" shift 3
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DIGIT shift 4
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LETTER shift 5
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'(' shift 6
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. error
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stat goto 7
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expr goto 8
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number goto 9
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state 2
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list : list error . '\n' (3)
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'\n' shift 10
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. error
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state 3
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expr : "SUB" . expr (14)
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"SUB" shift 3
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DIGIT shift 4
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LETTER shift 11
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'(' shift 6
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. error
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expr goto 12
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number goto 9
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state 4
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number : DIGIT . (17)
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. reduce 17
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state 5
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stat : LETTER . '=' expr (5)
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expr : LETTER . (15)
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'=' shift 13
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"ADD" reduce 15
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"SUB" reduce 15
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"MUL" reduce 15
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"DIV" reduce 15
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"MOD" reduce 15
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"AND" reduce 15
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'|' reduce 15
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'\n' reduce 15
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state 6
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expr : '(' . expr ')' (6)
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"SUB" shift 3
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DIGIT shift 4
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LETTER shift 11
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'(' shift 6
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. error
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expr goto 14
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number goto 9
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state 7
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list : list stat . '\n' (2)
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'\n' shift 15
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. error
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state 8
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stat : expr . (4)
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expr : expr . "ADD" expr (7)
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expr : expr . "SUB" expr (8)
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expr : expr . "MUL" expr (9)
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expr : expr . "DIV" expr (10)
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expr : expr . "MOD" expr (11)
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expr : expr . "AND" expr (12)
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expr : expr . '|' expr (13)
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"ADD" shift 16
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"SUB" shift 17
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"MUL" shift 18
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"DIV" shift 19
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"MOD" shift 20
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"AND" shift 21
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'|' shift 22
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'\n' reduce 4
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state 9
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expr : number . (16)
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number : number . DIGIT (18)
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DIGIT shift 23
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"ADD" reduce 16
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"SUB" reduce 16
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"MUL" reduce 16
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"DIV" reduce 16
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"MOD" reduce 16
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"AND" reduce 16
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'|' reduce 16
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'\n' reduce 16
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')' reduce 16
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state 10
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list : list error '\n' . (3)
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. reduce 3
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state 11
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expr : LETTER . (15)
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. reduce 15
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12: shift/reduce conflict (shift 16, reduce 14) on "ADD"
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12: shift/reduce conflict (shift 17, reduce 14) on "SUB"
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12: shift/reduce conflict (shift 18, reduce 14) on "MUL"
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12: shift/reduce conflict (shift 19, reduce 14) on "DIV"
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12: shift/reduce conflict (shift 20, reduce 14) on "MOD"
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12: shift/reduce conflict (shift 21, reduce 14) on "AND"
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state 12
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expr : expr . "ADD" expr (7)
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expr : expr . "SUB" expr (8)
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expr : expr . "MUL" expr (9)
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expr : expr . "DIV" expr (10)
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expr : expr . "MOD" expr (11)
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expr : expr . "AND" expr (12)
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expr : expr . '|' expr (13)
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expr : "SUB" expr . (14)
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"ADD" shift 16
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"SUB" shift 17
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"MUL" shift 18
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"DIV" shift 19
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"MOD" shift 20
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"AND" shift 21
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'|' reduce 14
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'\n' reduce 14
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')' reduce 14
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state 13
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stat : LETTER '=' . expr (5)
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"SUB" shift 3
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DIGIT shift 4
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LETTER shift 11
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'(' shift 6
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. error
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expr goto 24
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number goto 9
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state 14
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expr : '(' expr . ')' (6)
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expr : expr . "ADD" expr (7)
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expr : expr . "SUB" expr (8)
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expr : expr . "MUL" expr (9)
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expr : expr . "DIV" expr (10)
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expr : expr . "MOD" expr (11)
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expr : expr . "AND" expr (12)
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expr : expr . '|' expr (13)
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"ADD" shift 16
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"SUB" shift 17
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"MUL" shift 18
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"DIV" shift 19
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"MOD" shift 20
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"AND" shift 21
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'|' shift 22
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')' shift 25
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. error
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state 15
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list : list stat '\n' . (2)
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. reduce 2
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state 16
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expr : expr "ADD" . expr (7)
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"SUB" shift 3
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DIGIT shift 4
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LETTER shift 11
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'(' shift 6
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. error
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expr goto 26
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number goto 9
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state 17
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expr : expr "SUB" . expr (8)
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"SUB" shift 3
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DIGIT shift 4
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LETTER shift 11
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'(' shift 6
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. error
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expr goto 27
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number goto 9
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state 18
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expr : expr "MUL" . expr (9)
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"SUB" shift 3
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DIGIT shift 4
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LETTER shift 11
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'(' shift 6
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. error
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expr goto 28
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number goto 9
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state 19
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expr : expr "DIV" . expr (10)
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"SUB" shift 3
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DIGIT shift 4
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LETTER shift 11
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'(' shift 6
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. error
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expr goto 29
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number goto 9
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state 20
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expr : expr "MOD" . expr (11)
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"SUB" shift 3
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DIGIT shift 4
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LETTER shift 11
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'(' shift 6
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. error
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expr goto 30
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number goto 9
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state 21
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expr : expr "AND" . expr (12)
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"SUB" shift 3
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DIGIT shift 4
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LETTER shift 11
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'(' shift 6
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. error
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expr goto 31
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number goto 9
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state 22
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expr : expr '|' . expr (13)
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"SUB" shift 3
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DIGIT shift 4
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LETTER shift 11
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'(' shift 6
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. error
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expr goto 32
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number goto 9
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state 23
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number : number DIGIT . (18)
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. reduce 18
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state 24
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stat : LETTER '=' expr . (5)
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expr : expr . "ADD" expr (7)
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expr : expr . "SUB" expr (8)
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expr : expr . "MUL" expr (9)
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expr : expr . "DIV" expr (10)
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expr : expr . "MOD" expr (11)
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expr : expr . "AND" expr (12)
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expr : expr . '|' expr (13)
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"ADD" shift 16
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"SUB" shift 17
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"MUL" shift 18
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"DIV" shift 19
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"MOD" shift 20
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"AND" shift 21
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'|' shift 22
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'\n' reduce 5
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state 25
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expr : '(' expr ')' . (6)
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. reduce 6
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26: shift/reduce conflict (shift 16, reduce 7) on "ADD"
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26: shift/reduce conflict (shift 17, reduce 7) on "SUB"
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26: shift/reduce conflict (shift 18, reduce 7) on "MUL"
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26: shift/reduce conflict (shift 19, reduce 7) on "DIV"
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26: shift/reduce conflict (shift 20, reduce 7) on "MOD"
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26: shift/reduce conflict (shift 21, reduce 7) on "AND"
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26: shift/reduce conflict (shift 22, reduce 7) on '|'
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state 26
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expr : expr . "ADD" expr (7)
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expr : expr "ADD" expr . (7)
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expr : expr . "SUB" expr (8)
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expr : expr . "MUL" expr (9)
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expr : expr . "DIV" expr (10)
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expr : expr . "MOD" expr (11)
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expr : expr . "AND" expr (12)
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expr : expr . '|' expr (13)
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"ADD" shift 16
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"SUB" shift 17
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"MUL" shift 18
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"DIV" shift 19
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"MOD" shift 20
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"AND" shift 21
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'|' shift 22
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'\n' reduce 7
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')' reduce 7
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27: shift/reduce conflict (shift 16, reduce 8) on "ADD"
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27: shift/reduce conflict (shift 17, reduce 8) on "SUB"
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27: shift/reduce conflict (shift 18, reduce 8) on "MUL"
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27: shift/reduce conflict (shift 19, reduce 8) on "DIV"
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27: shift/reduce conflict (shift 20, reduce 8) on "MOD"
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27: shift/reduce conflict (shift 21, reduce 8) on "AND"
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27: shift/reduce conflict (shift 22, reduce 8) on '|'
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state 27
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expr : expr . "ADD" expr (7)
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expr : expr . "SUB" expr (8)
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expr : expr "SUB" expr . (8)
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expr : expr . "MUL" expr (9)
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expr : expr . "DIV" expr (10)
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expr : expr . "MOD" expr (11)
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expr : expr . "AND" expr (12)
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expr : expr . '|' expr (13)
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"ADD" shift 16
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"SUB" shift 17
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"MUL" shift 18
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"DIV" shift 19
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"MOD" shift 20
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"AND" shift 21
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'|' shift 22
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'\n' reduce 8
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')' reduce 8
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28: shift/reduce conflict (shift 16, reduce 9) on "ADD"
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28: shift/reduce conflict (shift 17, reduce 9) on "SUB"
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28: shift/reduce conflict (shift 18, reduce 9) on "MUL"
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28: shift/reduce conflict (shift 19, reduce 9) on "DIV"
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28: shift/reduce conflict (shift 20, reduce 9) on "MOD"
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28: shift/reduce conflict (shift 21, reduce 9) on "AND"
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28: shift/reduce conflict (shift 22, reduce 9) on '|'
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state 28
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expr : expr . "ADD" expr (7)
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expr : expr . "SUB" expr (8)
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expr : expr . "MUL" expr (9)
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expr : expr "MUL" expr . (9)
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expr : expr . "DIV" expr (10)
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expr : expr . "MOD" expr (11)
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expr : expr . "AND" expr (12)
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expr : expr . '|' expr (13)
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"ADD" shift 16
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"SUB" shift 17
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"MUL" shift 18
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"DIV" shift 19
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"MOD" shift 20
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"AND" shift 21
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'|' shift 22
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'\n' reduce 9
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')' reduce 9
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29: shift/reduce conflict (shift 16, reduce 10) on "ADD"
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29: shift/reduce conflict (shift 17, reduce 10) on "SUB"
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29: shift/reduce conflict (shift 18, reduce 10) on "MUL"
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29: shift/reduce conflict (shift 19, reduce 10) on "DIV"
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29: shift/reduce conflict (shift 20, reduce 10) on "MOD"
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29: shift/reduce conflict (shift 21, reduce 10) on "AND"
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29: shift/reduce conflict (shift 22, reduce 10) on '|'
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state 29
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expr : expr . "ADD" expr (7)
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expr : expr . "SUB" expr (8)
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expr : expr . "MUL" expr (9)
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expr : expr . "DIV" expr (10)
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expr : expr "DIV" expr . (10)
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expr : expr . "MOD" expr (11)
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expr : expr . "AND" expr (12)
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expr : expr . '|' expr (13)
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"ADD" shift 16
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"SUB" shift 17
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"MUL" shift 18
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"DIV" shift 19
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"MOD" shift 20
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"AND" shift 21
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'|' shift 22
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'\n' reduce 10
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')' reduce 10
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30: shift/reduce conflict (shift 16, reduce 11) on "ADD"
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30: shift/reduce conflict (shift 17, reduce 11) on "SUB"
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30: shift/reduce conflict (shift 18, reduce 11) on "MUL"
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30: shift/reduce conflict (shift 19, reduce 11) on "DIV"
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30: shift/reduce conflict (shift 20, reduce 11) on "MOD"
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30: shift/reduce conflict (shift 21, reduce 11) on "AND"
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30: shift/reduce conflict (shift 22, reduce 11) on '|'
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state 30
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expr : expr . "ADD" expr (7)
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expr : expr . "SUB" expr (8)
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expr : expr . "MUL" expr (9)
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expr : expr . "DIV" expr (10)
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expr : expr . "MOD" expr (11)
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expr : expr "MOD" expr . (11)
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expr : expr . "AND" expr (12)
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expr : expr . '|' expr (13)
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"ADD" shift 16
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"SUB" shift 17
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"MUL" shift 18
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"DIV" shift 19
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"MOD" shift 20
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"AND" shift 21
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'|' shift 22
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'\n' reduce 11
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')' reduce 11
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31: shift/reduce conflict (shift 16, reduce 12) on "ADD"
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31: shift/reduce conflict (shift 17, reduce 12) on "SUB"
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31: shift/reduce conflict (shift 18, reduce 12) on "MUL"
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31: shift/reduce conflict (shift 19, reduce 12) on "DIV"
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31: shift/reduce conflict (shift 20, reduce 12) on "MOD"
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31: shift/reduce conflict (shift 21, reduce 12) on "AND"
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31: shift/reduce conflict (shift 22, reduce 12) on '|'
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state 31
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expr : expr . "ADD" expr (7)
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expr : expr . "SUB" expr (8)
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expr : expr . "MUL" expr (9)
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expr : expr . "DIV" expr (10)
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expr : expr . "MOD" expr (11)
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expr : expr . "AND" expr (12)
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expr : expr "AND" expr . (12)
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expr : expr . '|' expr (13)
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"ADD" shift 16
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"SUB" shift 17
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"MUL" shift 18
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"DIV" shift 19
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"MOD" shift 20
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"AND" shift 21
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'|' shift 22
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'\n' reduce 12
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')' reduce 12
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32: shift/reduce conflict (shift 16, reduce 13) on "ADD"
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32: shift/reduce conflict (shift 17, reduce 13) on "SUB"
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32: shift/reduce conflict (shift 18, reduce 13) on "MUL"
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32: shift/reduce conflict (shift 19, reduce 13) on "DIV"
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32: shift/reduce conflict (shift 20, reduce 13) on "MOD"
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32: shift/reduce conflict (shift 21, reduce 13) on "AND"
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state 32
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expr : expr . "ADD" expr (7)
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expr : expr . "SUB" expr (8)
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expr : expr . "MUL" expr (9)
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expr : expr . "DIV" expr (10)
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expr : expr . "MOD" expr (11)
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expr : expr . "AND" expr (12)
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expr : expr . '|' expr (13)
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expr : expr '|' expr . (13)
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"ADD" shift 16
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"SUB" shift 17
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"MUL" shift 18
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"DIV" shift 19
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"MOD" shift 20
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"AND" shift 21
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'|' reduce 13
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'\n' reduce 13
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')' reduce 13
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State 12 contains 6 shift/reduce conflicts.
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State 26 contains 7 shift/reduce conflicts.
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State 27 contains 7 shift/reduce conflicts.
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State 28 contains 7 shift/reduce conflicts.
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State 29 contains 7 shift/reduce conflicts.
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State 30 contains 7 shift/reduce conflicts.
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State 31 contains 7 shift/reduce conflicts.
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State 32 contains 6 shift/reduce conflicts.
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28 terminals, 5 nonterminals
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19 grammar rules, 33 states
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