parser.output 4.93 KB
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Grammar

    0 $accept: unit "end of file"

    1 unit: assignments exp

    2 assignments: %empty
    3            | assignments assignment

    4 assignment: "identifier" ":=" exp

    5 exp: "number"
    6    | "identifier"
    7    | exp "+" exp
    8    | exp "-" exp
    9    | exp "*" exp
   10    | exp "/" exp
   11    | "(" exp ")"


Terminals, with rules where they appear

    "end of file" (0) 0
    error (256)
    ":=" (258) 4
    "-" (259) 8
    "+" (260) 7
    "*" (261) 9
    "/" (262) 10
    "(" (263) 11
    ")" (264) 11
    "identifier" <std::string> (265) 4 6
    "number" <int> (266) 5


Nonterminals, with rules where they appear

    $accept (12)
        on left: 0
    exp <int> (13)
        on left: 5 6 7 8 9 10 11
        on right: 1 4 7 8 9 10 11
    unit (14)
        on left: 1
        on right: 0
    assignments (15)
        on left: 2 3
        on right: 1 3
    assignment (16)
        on left: 4
        on right: 3


State 0

    0 $accept: . unit "end of file"

    $default  reduce using rule 2 (assignments)

    unit         go to state 1
    assignments  go to state 2


State 1

    0 $accept: unit . "end of file"

    "end of file"  shift, and go to state 3


State 2

    1 unit: assignments . exp
    3 assignments: assignments . assignment

    "("           shift, and go to state 4
    "identifier"  shift, and go to state 5
    "number"      shift, and go to state 6

    exp         go to state 7
    assignment  go to state 8


State 3

    0 $accept: unit "end of file" .

    $default  accept


State 4

   11 exp: "(" . exp ")"

    "("           shift, and go to state 4
    "identifier"  shift, and go to state 9
    "number"      shift, and go to state 6

    exp  go to state 10


State 5

    4 assignment: "identifier" . ":=" exp
    6 exp: "identifier" .

    ":="  shift, and go to state 11

    $default  reduce using rule 6 (exp)


State 6

    5 exp: "number" .

    $default  reduce using rule 5 (exp)


State 7

    1 unit: assignments exp .
    7 exp: exp . "+" exp
    8    | exp . "-" exp
    9    | exp . "*" exp
   10    | exp . "/" exp

    "-"  shift, and go to state 12
    "+"  shift, and go to state 13
    "*"  shift, and go to state 14
    "/"  shift, and go to state 15

    $default  reduce using rule 1 (unit)


State 8

    3 assignments: assignments assignment .

    $default  reduce using rule 3 (assignments)


State 9

    6 exp: "identifier" .

    $default  reduce using rule 6 (exp)


State 10

    7 exp: exp . "+" exp
    8    | exp . "-" exp
    9    | exp . "*" exp
   10    | exp . "/" exp
   11    | "(" exp . ")"

    "-"  shift, and go to state 12
    "+"  shift, and go to state 13
    "*"  shift, and go to state 14
    "/"  shift, and go to state 15
    ")"  shift, and go to state 16


State 11

    4 assignment: "identifier" ":=" . exp

    "("           shift, and go to state 4
    "identifier"  shift, and go to state 9
    "number"      shift, and go to state 6

    exp  go to state 17


State 12

    8 exp: exp "-" . exp

    "("           shift, and go to state 4
    "identifier"  shift, and go to state 9
    "number"      shift, and go to state 6

    exp  go to state 18


State 13

    7 exp: exp "+" . exp

    "("           shift, and go to state 4
    "identifier"  shift, and go to state 9
    "number"      shift, and go to state 6

    exp  go to state 19


State 14

    9 exp: exp "*" . exp

    "("           shift, and go to state 4
    "identifier"  shift, and go to state 9
    "number"      shift, and go to state 6

    exp  go to state 20


State 15

   10 exp: exp "/" . exp

    "("           shift, and go to state 4
    "identifier"  shift, and go to state 9
    "number"      shift, and go to state 6

    exp  go to state 21


State 16

   11 exp: "(" exp ")" .

    $default  reduce using rule 11 (exp)


State 17

    4 assignment: "identifier" ":=" exp .
    7 exp: exp . "+" exp
    8    | exp . "-" exp
    9    | exp . "*" exp
   10    | exp . "/" exp

    "-"  shift, and go to state 12
    "+"  shift, and go to state 13
    "*"  shift, and go to state 14
    "/"  shift, and go to state 15

    $default  reduce using rule 4 (assignment)


State 18

    7 exp: exp . "+" exp
    8    | exp . "-" exp
    8    | exp "-" exp .
    9    | exp . "*" exp
   10    | exp . "/" exp

    "*"  shift, and go to state 14
    "/"  shift, and go to state 15

    $default  reduce using rule 8 (exp)


State 19

    7 exp: exp . "+" exp
    7    | exp "+" exp .
    8    | exp . "-" exp
    9    | exp . "*" exp
   10    | exp . "/" exp

    "*"  shift, and go to state 14
    "/"  shift, and go to state 15

    $default  reduce using rule 7 (exp)


State 20

    7 exp: exp . "+" exp
    8    | exp . "-" exp
    9    | exp . "*" exp
    9    | exp "*" exp .
   10    | exp . "/" exp

    $default  reduce using rule 9 (exp)


State 21

    7 exp: exp . "+" exp
    8    | exp . "-" exp
    9    | exp . "*" exp
   10    | exp . "/" exp
   10    | exp "/" exp .

    $default  reduce using rule 10 (exp)