UNDERL
if (obuf[col - 1].c_mode & UNDERL)
obuf[col].c_mode |= UNDERL | mode;
obuf[col].c_mode |= UNDERL | mode;
obuf[col].c_mode |= UNDERL|mode;
obuf[i].c_mode |= UNDERL;
if (obuf[i].c_mode != UNDERL && obuf[i].c_mode != BOLD) {
case UNDERL:
if (must_use_uc && (curmode&UNDERL)) {
case UNDERL:
case UNDERL: