54 lines
1.3 KiB
C++
54 lines
1.3 KiB
C++
#ifndef PARSERULE_H
|
|
#define PARSERULE_H
|
|
|
|
#ifndef NULL
|
|
#define NULL ((void*)0)
|
|
#endif
|
|
|
|
#include "Symbol.h"
|
|
|
|
#include <vector>
|
|
#include <string>
|
|
#include <iostream>
|
|
|
|
class ParseRule {
|
|
private:
|
|
int pointerIndex;
|
|
Symbol leftHandle;
|
|
std::vector<Symbol> lookahead;
|
|
std::vector<Symbol> rightSide;
|
|
|
|
public:
|
|
ParseRule();
|
|
ParseRule(Symbol leftHandle, int pointerIndex, std::vector<Symbol> &rightSide, std::vector<Symbol> lookahead);
|
|
~ParseRule();
|
|
const bool equalsExceptLookahead(const ParseRule &other) const;
|
|
bool const operator==(const ParseRule &other) const;
|
|
bool const operator!=(const ParseRule &other) const;
|
|
bool const operator<(const ParseRule &other) const; //Used for ordering so we can put ParseRule's in sets, and also so that ParseActions will have an ordering
|
|
ParseRule* clone();
|
|
|
|
void setLeftHandle(Symbol leftHandle);
|
|
void appendToRight(Symbol appendee);
|
|
|
|
Symbol getLeftSide();
|
|
void setRightSide(std::vector<Symbol> rightSide);
|
|
std::vector<Symbol> getRightSide();
|
|
Symbol getAtNextIndex();
|
|
Symbol getAtIndex();
|
|
int getRightSize();
|
|
int getIndex();
|
|
|
|
bool advancePointer();
|
|
bool isAtEnd();
|
|
|
|
void setLookahead(std::vector<Symbol> lookahead);
|
|
void addLookahead(std::vector<Symbol> lookahead);
|
|
std::vector<Symbol> getLookahead();
|
|
|
|
std::string toString(bool printLookahead = true);
|
|
std::string toDOT();
|
|
};
|
|
|
|
#endif
|