How to split by double or more empty lines? Regex.Stplit adds unwanted strings

Question

I need to split this string: "hello1\r\nhello2\r\n\r\nhello3\r\n\r\n\r\nhello4" to: {"hello1\r\nhello2" , "hello3", "hello4"}

my code:

string text = "hello1\r\nhello2\r\n\r\nhello3\r\n\r\n\r\nhello4"; 
string[] wordsarray = Regex.Split(text, @"(\r\n){2,}");

The result is: {"hello1\r\nhello2" ,"\r\n" , "hello3" ,"\r\n" ,"hello4"}

What am I doing wrong?

Answer 1

You are very close. Simply use a non-capturing group:

Regex.Split(text, @"(?:\r\n){2,}")

Regex.Split adds captured groups to the result array as described in "Remarks" section of Regex.Split.