enter_dim_mode
enter_dim_mode = ABSENT_STRING;
|| PRESENT(enter_dim_mode)
ANDMISSING(enter_dim_mode, exit_attribute_mode);
if (enter_dim_mode)
enter_dim_mode = ABSENT_STRING;
TurnOn(A_DIM, enter_dim_mode);
if (enter_dim_mode)
TurnOn(A_DIM, enter_dim_mode);
CHECK_SGR(5, enter_dim_mode);