pl0_compiler.cpp

PL/0编译器

// PL0_Compiler.cpp : 定义控制台应用程序的入口点。
//高凯 34211504

#include "stdafx.h"
#include <iostream>
#include <stdio.h>
#include <conio.h>
#include <string.h>
#include "pl0.h"

using namespace std;

int _tmain(int argc, _TCHAR* argv[])
{
	cout<<"PL/0编译系统   PL/0-Compiler\n作者：高凯  34211504\n2007年寒假\n\n\n";
	char ch;
	//do{
	char filename[256];
	
	cout<<"请键入源文件地址：";
	gets(filename);

	CPl0 pl(filename);

	if (pl.FileEmpty())
	{
		cout<<"源文件为空！\n";
		ch=getch();
		return 0;
	}

	cout<<"是否显示源文件？(y/n): ";
	ch=getch();
	while (ch!='y'&&ch!='n') 
		ch=getch();
	cout<<ch<<endl;
	if (ch=='y') 
	{
		cout<<"\n源代码如下："<<endl;
		pl.ShowSrcfile();
	}

	cout<<"正在编译中...\n\n";
	pl.Compile();
	if (pl.ErrorNumber())
	{
		pl.ShowErrors();
		cout<<"是否继续？(y/n): ";
		ch=getch();
		while (ch!='y'&&ch!='n') 
			ch=getch();
		cout<<ch<<endl;
		if (ch=='n') 
			return 0;
	}

	cout<<"是否列出目标代码并生成目标语言文件?(y/n): ";
	ch=getch();
	while (ch!='y'&&ch!='n') 
		ch=getch();
	cout<<ch<<endl;

	if (ch=='y') 
	{
		cout<<"\n目标代码如下："<<endl;
		pl.ListCode();
	}
	do{
		cout<<"start\n";
		pl.Interpret();
	
		cout<<"end\n是否继续测试该程序？(y/n): ";
		ch=getch();
		while (ch!='y'&&ch!='n') 
			ch=getch();
		cout<<ch<<endl;
	}while(ch == 'y');

	/*cout<<"\n是否要编译其他程序？(y/n): ";
	ch=getch();
	while (ch!='y'&&ch!='n') 
		ch=getch();
	cout<<ch<<endl;
	}while(ch == 'y');*/

	return 0;
}