CODEWITHSUNDEEP
c#
Diogo Santos
Diogo Santos

Reputation: 830

Split string and know the relative position of the result

Having a string such as:

string foo = "10::12"

How can I split the string but still mantaining the positions of the results?

To clarify, foo is dynamic, in a way that in a given time the string may just be ::12. Using a simple split, I don't know if the resulting 12 was on the left of the separator or on the right.

Thanks!

Upvotes: 0

Views: 125

Answers (2)

heijp06
heijp06

Reputation: 11808

If you use a regex to find all the numbers, you can use the Index property of the Match class to find both the number and the index of that number.

Regex regex = new Regex(@"\d+");

foreach (Match match in regex.Matches("10::12"))
{
    Console.WriteLine($"{match.Index}, {match.Value}");
}

Ouput:

0, 10
4, 12

Upvotes: 1

Daniel Stackenland
Daniel Stackenland

Reputation: 3239

Try something like this:

public static void Main()
    {
        ParseAndPrint("::12");
        ParseAndPrint("10::12");

    }

      private static void ParseAndPrint(string input)
        {
            string[] parts = input.Split(new[] {"::"}, StringSplitOptions.None);
            var left = parts[0];
            var right = parts[1];

            Console.WriteLine("L:" + left + " R:" + right);
        }

https://dotnetfiddle.net/rHw07f

Upvotes: 1

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