将字符串拆分为单词和标点符号，但不拆分内部标点符号

Question

我有一个字符串There is a boy's puppy. Really?。我需要找到外部词句，并将其从附加词中分离出来，然后将其视为另一个词。输出为：

• boy's是一个字（内部标点符号）
• puppy.是两个词，puppy和.
• Really?是两个词，Really和?

我已在代码中根据外部标点将单词拆分，但我希望将它们作为单独的单词。

String[] Res = word.split("[\\p{Punct}\\s]+");

我该怎么做？

Answer 1

What you want to do with your reg ex is using a non-capturing group so that it becomes part of the output, so in the reg ex I have two groups separated by an OR (|) where the first is capturing and the second one is non-capturing. I am not sure I've included all external punctuation you wanted in my non-capturing group, (?=X).

String word = "There is a boy's puppy. Really?";
String[] res = word.split("(\\s+)|(?=[\\.\\?])");

for (String s: res ) {
    System.out.print("[" + s + "]");
} 

Output is

[There][is][a][boy's][puppy][.][Really][?]