parser.h.bak

仅作参考。 测试环境：WinXP + VC6.0+sp6 Redhat Linux AS 3 + Gcc3.x.x Solaris 10 + Gcc3

#include "base.h"
namespace TVParser
{
	class AlgorithmParser
	{
	public:
		AlgorithmParser();
		~AlgorithmParser();
		char* Compute(char* inputTokens);
	private:
		char* InfiToPostfix(char* infixTokens);
		char* Calculate(char* postfixTokens);
		char* Compute(char* leftoperand, char* op, char* rightoperand);
		char* GetNetToken(int* pos, char* tokens, int* isOperator);
		char* GetOutput(char* aOperator);
		char GetSingleOpertor(char* op);
		bool IsSign(char token,int pos,char* tokens);
		bool IsSigned(char* pOperand);
		char* GetUnsignedOperand(char* operand);
		int GetLastSign(char* pOperand);
		bool Isoperator(char token);
		bool IsSingleOperator(char* token);
		int GetperatorPriority(char* token);
		char* Substring(char* src,int start,int len);
		bool IsLetterOrDigit(char token);
		bool IsNonSignOperator(char token);
		Stack _Stack;
		Stack _PostfixStack;
		Queue _StringList;
	};
}