pc.cpp

c语言做的pl0编译器

// PL0 Compiler
//////////////////////////////////////////////////////////////////////
#include <stdio.h>
#include <conio.h>
#include <string.h>
#include "pl0.h"

void main(int argc,char *argv[])
{
	char filename[256];
	int endtype;
	printf("Welcome to 35060413 dongzy's Pl0 world!\n");
	if (argc!=2)
	{
		printf("请输入源文件路径:");
		gets(filename);
	}
	else
		strcpy(filename,argv[1]);

	CPlCompiler pl(filename);
	char ch;
	if (pl.FileEmpty())
	{
		printf("对不起，没有找到文件!\n");
		return;
	}

	printf("List the source file?(y/n): ");
	ch=getch();
	while (ch!='y' && ch!='n') 
		  ch=getch();
	printf("%c\n",ch);
	if (ch=='y')
		pl.DisplaySrcfile();
    printf("---PL/0 Compiling start---\n");
	pl.Compile();
	if (pl.ErrorNumber())
	{
		pl.DisplayErrors();
		printf("Continue?(y/n): ");
		ch=getch();
		while (ch!='y' && ch!='n') ch=getch();
		printf("%c\n",ch);
		if (ch=='n') return;
	}

	printf("---PL/0 Compiling finished---\nList object code?(y/n): ");
	ch=getch();
	while (ch!='y' && ch!='n') ch=getch();
	printf("%c\n",ch);
	if (ch=='y') pl.ListCode();
	printf("start\n");
	pl.Interpret();
	scanf("%d",&endtype);
}