handle_opt.h

在linux/UNIX上

/*
*handle_opt.h
*		provide some interface for handle the * / + - ^ ( );
*AUTHOR:[e-mail]
*VERSION:1.0;
*DATE:2006-8-9;
*/

#ifndef HANDLE_OPT_H
#define HANDLE_OPT_H

#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <math.h>

#include "stack.h"

/*claimed in main.c*/
extern stack_s oprand_stack;
extern stack_s operator_stack;

/*define the operator's PRI
*OPERATOR:    (		^	*	+-	)
*PRI:	   	  8		6	4	2	1
*@PARAM:a operator;
*@RETURN:the operator's PRI;
*DATE:2006-8-8;
*/
int operator_pri(char operator);

/*handle the operator '(' */
void handle_left_b(char operator);

/*handle the operator '^' */
void handle_pow(char operator);

/*handle the operator '*' and '/' */
void handle_multi(char operator);

/*handle the '+'and '-'*/
void handle_add_and_sub(char operator);

/*handle the ')' ; 
*	when we meet ')', we handle the stack until meet '(';
*/
void handle_right_b(char operator);

#endif