exprtest.c

unix环境下实现的cmm语言编译器

#include "cmm.h"
#include <fcntl.h>
#include <unistd.h>

void declaration(void);
int main(int argc, char *argv[])
{
	Tree e;
	if(argc != 2) {
		fprintf(stderr, "usage: %s file\n",argv[0]);
		exit(1);
	}
	file = argv[1];
	infd = open(file, O_RDONLY);
	if(infd == -1) {
		fprintf(stderr, "can't open %s\n",file);
		exit(1);
	}
	inputInit();
	declaration();
	t = gettoken();
	e = expr(';');
	fprint(2,"tree:\n");
	printtree(e);
	printf("\nline = %d\n", lineno);
	close(infd);
	return 0;
}
void declaration(void)
{
	
}