rem: eprint()
add: eprint(void)
context: eprint()	/* try to print context around error */{	uchar *p, *q;	int c;	static int been_here = 0;	extern uchar ebuf[300], *ep;	if (compile_time == 2 || compile_time == 0 || been_here++ > 0)		return;	p = ep - 1;	if (p > ebuf && *p == '\n')		p--;	for (; p > ebuf && *p != '\n' && *p != '\0'; p--)		;	while (*p == '\n')		p++;	fprintf(stderr, gettext(" context is\n\t"));	for (q = ep-1; q >= p && *q != ' ' && *q != '\t' && *q != '\n';		q--)		;	for (; p < q; p++)		if (*p)			putc(*p, stderr);	fprintf(stderr, " >>> ");	for (; p < ep; p++)		if (*p)			putc(*p, stderr);	fprintf(stderr, " <<< ");	if (*ep)		while ((c = input()) != '\n' && c != '\0' && c != EOF) {			putc(c, stderr);			bclass(c);		}	putc('\n', stderr);	ep = ebuf;}