richedit应用

原始文本：
111111[aaaaa|sssss|ddddddd|ffffff]222222，fdfdfdf[11111|22222|333333]dsfdsfdsfdsfsdf；我要用richedit生成效果如下：
111111aaaaa222222，fdfdfdf11111 dsfdsfdsfdsfsdf；并且aaaaa点它时生成一个listbox，listbox内容：aaaaa
                                       Sssss
                                       Ddddddd
                                       Ffffff
11111点它时生成一个listbox，listbox内容：11111
                                       22222
                                       333333
哪位高手指点如何实现？感谢不尽！