	opt._listsFlag= false;
	opt._wsListFlag= false;
	if (opt._default_lef_rules) { // minWidth, minSpacing, minThickness, pitch multiplied by grid_list
		// user sets default_flag and grid_list multipliers
		if (in_args->grid_list()==NULL) {
			opt._gridTable.add(1.0);
		}
		else {
			parser.mkWords(in_args->grid_list());	
			parser.getDoubleArray(&opt._gridTable, 0);
		}	
		opt._listsFlag= true;
	}
	else if (opt._nondefault_lef_rules) {