Using regex to separate individual words?

Question

I have the following line to split a sentence into words and store it into an array based on white spaces: string[] s = Regex.Split(input, @"\s+");

The problem is at the end of the sentence, it also picks up the period. For example: C# is cool.
The code would store:

1. C#
2. is
3. cool.

The question is: How do I get it not to pick up the period ?

Answer 1

You can use a character class [] to add in the dot . or other characters that you need to split on.

string[] s = Regex.Split(input, @"[\s.]+");

See Demo

Answer 2

You can add dot (and other punctuation marks as needed) to the regular expression, like this:

string[] s = Regex.Split(input, @"(\s|[.;,])+");