if (chr == '\r' || chr == '\n' || chr == '\f')
if (isForm(chr))
static void charToPrinter(chr)	int chr;{	static int initialized;	if (!initialized) {		register TScreen *screen = &term->screen;		Printer = popen(screen->printer_command, "w");		initialized++;	}	if (Printer != 0) {		fputc(chr, Printer);		if (chr == '\r' || chr == '\n' || chr == '\f')			fflush(Printer);	}}