regex java:如何在泛型的开始标记和结束标记之间替换泛型中的字符串

Question

在java中,我有一个像这样的字符串:

"bla bla bla bla [BACK] bla bla bla [bla bla [GO] bla bla bla bla [bla" 

我想找到一个规则用正则表达式替换开始标记"["和"(开始)"和结束标记"]"用"(结束)".

应忽略"单独的起始标签或结束标签".

结果是我得到以下内容:

bla bla bla bla (start)BACK(end) bla bla bla [ bla bla (start)GO(end) bla bla bla bla [bla

Answer 1

String resultString = subjectString.replaceAll(
    "(?x)       # Turn on verbose mode                    \n" +
    "\\[        # Match a [                               \n" +
    "(          # Match and capture in group 1:           \n" +
    "[^\\[\\]]* # Any number of characters except brackets\n" +
    ")          # End of capturing group                  \n" +
    "\\]        # Match a ]", "(start)$1(end)");

将匹配/替换仅平衡[/ ]对,在它们之间没有括号.