如何拆分String但在括号内保留分隔符？

Question

我有一个字符串，

String str = "(A,B),C,D,(E,F,G)";
String[] parts = str.split(",");

我想用逗号分隔，但我需要括号内的逗号

parts[0] = "(A,B)";
parts[1] = "C";
parts[2] = "D";
parts[3] = "(E,F,G)";