SC_ESCAPED
if (sc->sc_flags & (SC_FLUSH | SC_ESCAPED)
if ((sc->sc_flags & (SC_FLUSH | SC_ESCAPED)) == 0){
sc->sc_flags &= ~(SC_FLUSH | SC_ESCAPED);
if (sc->sc_flags & SC_ESCAPED) {
sc->sc_flags &= ~SC_ESCAPED;
sc->sc_flags |= SC_ESCAPED;