如何将字符串拆分为包含定界符的单词

Question

How can I split a text into words in .NET, returning both the words and their separators and punctuation marks.

Input:

"Hello world! What's up?"

Output: 'Hello', ' ', 'world', '!', ' ','What's',' ','up','?'

Answer 1

(?=[^\w'])|(?<=[^\w'])

You can split by this.See demo.

https://regex101.com/r/iJ7bT6/15

Answer 2

var output = Regex.Split（input，“（[[^ A-Z0-9]]”，RegexOptions.IgnoreSpace）;

Answer 3

使用以下正则表达式：

'(?=[^\w'])|(?<=[^\w'])`