emitter.c

一个简单的识别运算的编译器程序

#include "global.h"

emit(t,tval)
      int t, tval;
{
	switch(t){
	case '+':
	case '-':
	case '*':
	case '/':
		printf("%c\n",t);break;
	case DIV:
		printf("DIV\n");break;
	case MOD:
		printf("MOD\n");break;
	case NUM:
		printf("%d\n",tval);break;
	case ID:
		printf("%s\n",symtable[tval].lexptr);break;
	default:
		printf("token  %d,  tokenval  %d\n",t,tval);
	}
}