#ifndef lintstatic char *sccsid = "@(#)refer8.c	4.1 (Berkeley) 5/6/83";#endif#include "refer..c"static char ahead[1024];static int peeked = 0;static char *noteof = (char *) 1;char *input(s)char *s;{	if (peeked) {		peeked = 0;		if (noteof == 0)			return(0);		strcpy(s, ahead);		return(s);	}	return(fgets(s, 1000, in));}char *lookat(){	if (peeked)		return(ahead);	noteof = input(ahead);	peeked = 1;	return(noteof);}addch(s, c)char *s;{	while (*s)		s++;	*s++ = c;	*s = 0;}