How to split a string while preserving line endings?

Question

I have a block of text and I want to get its lines without losing the \\r and \\n at the end. Right now, I have the following (suboptimal code):

<         


        

Answer 1

As always, extension method goodies :)

public static class StringExtensions
{
    public static IEnumerable SplitAndKeep(this string s, string seperator)
    {
        string[] obj = s.Split(new string[] { seperator }, StringSplitOptions.None);

        for (int i = 0; i < obj.Length; i++)
        {
            string result = i == obj.Length - 1 ? obj[i] : obj[i] + seperator;
            yield return result;
        }
    }
}

usage:

        string text = "One,Two,Three,Four";
        foreach (var s in text.SplitAndKeep(","))
        {
            Console.WriteLine(s);
        }

Output:

One,

Two,

Three,

Four