public static void collectOr(Expr expr, List<ExprList> list) {
if (expr instanceof E_LogicalOr) {
E_LogicalOr e = (E_LogicalOr) expr;
collectOr(e.getArg1(), list);
collectOr(e.getArg2(), list);
} else if (expr instanceof E_LogicalAnd) {
// List<Expr> ors = new ArrayList<Expr>();
ExprList ors = new ExprList();
collectAnd(expr, ors);
list.add(ors);
} else {
list.add(new ExprList(expr));
}
}
