49 lines
898 B
C++
49 lines
898 B
C++
#ifndef PARSERULE_H
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#define PARSERULE_H
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#ifndef NULL
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#define NULL 0
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#endif
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#include "Symbol.h"
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#include <vector>
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#include <string>
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#include <iostream>
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class ParseRule {
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public:
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ParseRule();
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ParseRule(Symbol* leftHandle, int pointerIndex, std::vector<Symbol*> &rightSide, Symbol* lookahead = NULL);
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~ParseRule();
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bool const operator==(const ParseRule &other);
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bool const operator!=(const ParseRule &other);
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ParseRule* clone();
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void setLeftHandle(Symbol* leftHandle);
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void appendToRight(Symbol* appendee);
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Symbol* getLeftSide();
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std::vector<Symbol*> getRightSide();
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Symbol* getAtNextIndex();
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Symbol* getAtIndex();
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int getRightSize();
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int getIndex();
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bool advancePointer();
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bool isAtEnd();
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std::string toString();
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std::string toDOT();
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private:
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int pointerIndex;
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Symbol* leftHandle;
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Symbol* lookahead;
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std::vector<Symbol*> rightSide;
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};
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#endif |