specified splitting of string

December 13, 2022

Is there a way to do the following:

string str = "[A]     [C]     [E] [F]";

and then splitting the string down to a collection looking like:

List<string> myList = {"[A]", "   ", "[C]", "   ", "[E]", "[F]"}

In text: Is there a way to split the string by taking 3, then skipping 1. There is no ending space. Otherwise the following had worked fine: https://stackoverflow.com/a/1450797/14375615

I can’t just add 1 to length, that just caused an error because the last item wasn’t 4 chars long

>Solution :

I’d try different approach than method indicated in the other question. It’s more straight forwardly handling the last segment if its length is smaller than chunkSize:

static IEnumerable<string> Split(string str, int chunkSize, int gapSize)
{
    var index = 0;
    
    while (index < str.Length - chunkSize - 1)
    {
        yield return str.Substring(index, chunkSize);
        index += chunkSize + gapSize;
    }
    
    if (str.Length - index > 0)
    {
        yield return str.Substring(index, str.Length - index);
    }
}

Then usage: