90 lines
3.6 KiB
Plaintext
90 lines
3.6 KiB
Plaintext
文法：
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key: Program
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0 Program ::= . StatementList
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key: StatementList
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1 StatementList ::= . LBrace Statement_0 RBrace
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key: IfStatement
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2 IfStatement ::= . If ConditionPart PartIfStatement Else Statement
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3 IfStatement ::= . If ConditionPart Statement
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key: PartIfStatement
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4 PartIfStatement ::= . If ConditionPart PartIfStatement Else PartIfStatement
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5 PartIfStatement ::= . NoIfStatement
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key: ConditionPart
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6 ConditionPart ::= . LParen Condition RParen
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key: Condition
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7 Condition ::= . ConditionalExpression LogicalOperator_ConditionalExpression_0
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key: ConditionalExpression
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8 ConditionalExpression ::= . Expression Operator Expression
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9 ConditionalExpression ::= . Expression
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key: Expression
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10 Expression ::= . Term AddLike_Term_0
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key: Statement
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11 Statement ::= . IfStatement
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12 Statement ::= . NoIfStatement
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key: NoIfStatement
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13 NoIfStatement ::= . AssignmentStatement Semicolon
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14 NoIfStatement ::= . VariableDefinition Semicolon
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15 NoIfStatement ::= . LBrace Statement_1 RBrace
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16 NoIfStatement ::= . ConstantDefinition Semicolon
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17 NoIfStatement ::= . Semicolon
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key: AssignmentStatement
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18 AssignmentStatement ::= . Identifier Equal Expression
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key: Term
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19 Term ::= . Factor MultiplyLike_Factor_0
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key: ConstantDefinition
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20 ConstantDefinition ::= . Const VariableDefinition
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key: VariableDefinition
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21 VariableDefinition ::= . Type Identifier__AssignmentStatement_0 Comma_Identifier__Comma_AssignmentStatement_0
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key: Type
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22 Type ::= . Int
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23 Type ::= . Char
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key: Factor
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24 Factor ::= . Identifier
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25 Factor ::= . Number
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26 Factor ::= . Character
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27 Factor ::= . LParen Expression RParen
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key: AddLike
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28 AddLike ::= . Plus
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29 AddLike ::= . Minus
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key: MultiplyLike
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30 MultiplyLike ::= . Multiply
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31 MultiplyLike ::= . Divide
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32 MultiplyLike ::= . Modulo
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key: Number
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33 Number ::= . UnsignedNumber
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34 Number ::= . Minus UnsignedNumber
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35 Number ::= . Plus UnsignedNumber
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key: Operator
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36 Operator ::= . EqualTo
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37 Operator ::= . NotEqualTo
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38 Operator ::= . LessThan
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39 Operator ::= . GreaterThan
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40 Operator ::= . LessThanOrEqual
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41 Operator ::= . GreaterThanOrEqual
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key: LogicalOperator
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42 LogicalOperator ::= . And
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43 LogicalOperator ::= . Or
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key: Statement_0
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44 Statement_0 ::= .
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45 Statement_0 ::= . Statement Statement_0
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key: LogicalOperator_ConditionalExpression_0
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46 LogicalOperator_ConditionalExpression_0 ::= .
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47 LogicalOperator_ConditionalExpression_0 ::= . LogicalOperator ConditionalExpression LogicalOperator_ConditionalExpression_0
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key: AddLike_Term_0
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48 AddLike_Term_0 ::= .
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49 AddLike_Term_0 ::= . AddLike Term AddLike_Term_0
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key: Statement_1
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50 Statement_1 ::= .
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51 Statement_1 ::= . Statement Statement_1
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key: MultiplyLike_Factor_0
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52 MultiplyLike_Factor_0 ::= .
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53 MultiplyLike_Factor_0 ::= . MultiplyLike Factor MultiplyLike_Factor_0
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key: Identifier__AssignmentStatement_0
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54 Identifier__AssignmentStatement_0 ::= . Identifier
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55 Identifier__AssignmentStatement_0 ::= . Identifier Identifier__AssignmentStatement_0
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56 Identifier__AssignmentStatement_0 ::= . AssignmentStatement
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57 Identifier__AssignmentStatement_0 ::= . AssignmentStatement Identifier__AssignmentStatement_0
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key: Comma_Identifier__Comma_AssignmentStatement_0
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58 Comma_Identifier__Comma_AssignmentStatement_0 ::= .
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59 Comma_Identifier__Comma_AssignmentStatement_0 ::= . Comma Identifier Comma_Identifier__Comma_AssignmentStatement_0
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60 Comma_Identifier__Comma_AssignmentStatement_0 ::= . Comma AssignmentStatement Comma_Identifier__Comma_AssignmentStatement_0 |