CTLQUOTEEND
if (*argtext == CTLQUOTEMARK || *argtext == CTLQUOTEEND) {
while (*p != CTLESC && *p != CTLQUOTEMARK && *p != CTLQUOTEEND) {
if (*p == CTLQUOTEMARK || *p == CTLQUOTEEND) {
case CTLQUOTEEND:
} else if (c == CTLQUOTEMARK || c == CTLQUOTEEND)
USTPUTC(CTLQUOTEEND, out);
USTPUTC(CTLQUOTEEND, out);