using System;

using System.IO;

public class Program

{

    public static void Main()

    {

        string disc = @"\IdentityService";

        Console.WriteLine(GetDiscriminatorOld(disc));

        Console.WriteLine(GetDiscriminator(disc));

    }

    public static string? GetDiscriminatorOld(string discriminator)

    {

        return discriminator.TrimEnd(Path.DirectorySeparatorChar, Path.AltDirectorySeparatorChar);

    }

    public static string? GetDiscriminator(string discriminator)

    {

        string DirectorySeparator = Path.DirectorySeparatorChar.ToString();

        string AltDirectorySeparator = Path.AltDirectorySeparatorChar.ToString();

        var contentRoot = discriminator.Trim();

        if (string.IsNullOrEmpty(contentRoot) ||

            contentRoot.EndsWith(DirectorySeparator, StringComparison.OrdinalIgnoreCase) ||

            contentRoot.EndsWith(AltDirectorySeparator, StringComparison.OrdinalIgnoreCase))

        {

            return contentRoot;

        }

        return contentRoot + DirectorySeparator;

    }

}