如果字符串没有被这种括号 [ ] 包围，如何用空格分割字符串
所以字符串" book [new interesting book] buy it "应该分为
book
new interesting book
buy
it
or
book
[new interesting book]
buy
it
谢谢你！
它必须是正则表达式吗？你能行的在一次迭代中只需计算空格之前有多少个括号即可确定该空格是否应该被新行标记替换。
String data="book [new [interesting] book] buy it";
StringBuilder buffer=new StringBuilder();
int bracketCounter=0;
for (char c:data.toCharArray()){
if (c=='[') bracketCounter++;
if (c==']') bracketCounter--;
if (c==' ' && bracketCounter==0)
buffer.append("\n");
else
buffer.append(c);
}
System.out.println(buffer);
Out:
book
[new [interesting] book]
buy
it
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