main.c

编译原理 做一个后缀翻译 还有抽象堆栈机代码翻译

/**** main.c *****/

#include "global.h"


int main(int argc,char *argv[])
{
	
	if(argc!=4)
	{
		printf("Usage:compiler -option[-s|-c] inputfile outputfile\n");
		exit(1);
	}
	fpo=fopen(argv[2],"r");
	if(fpo==NULL) {printf("File open error!\n");exit(1);}
	fpw=fopen(argv[3],"w+");
	if(fpo==NULL) {printf("File write error!\n");exit(1);}
	if(strcmp(argv[1],"-s")==0)
		{functype=1;lval=rval='#';}
	else if(strcmp(argv[1],"-c")==0)
		functype=0;
	else {printf("parameter error!\n");exit(1);}
	init();
	parse();
	exit(0);
}