biaoge.h

该包中包含一个pl0文法要求和根据此文法编写的编译器

#ifndef __BIAOGE_H
#define __BIAOGE_H

#include "MAIN.h"
#include "ERRORS.h"
#include "YUFA.h"

#define TABLE_SIZE	100

enum object {constant,variable,procedure};

struct table_type{
	char name[IDENT_LENGTH+1];
	object kind;
	union{
		int val;
		struct{
			int level,adr,size;
		};
	};
};

class CBiaoge{
public:
	CBiaoge(CPlCompiler*);
	void Enter(enum object k);
	int Position(char *id);
	int TableIndex(){return tx[lev];
	}
public:
	table_type table[TABLE_SIZE];
private:
	int tx[MAX_LEVEL+1];
	int lev;

	CPlCompiler *pl;
};

#endif