using System;
using System.Text.RegularExpressions;
using System.Linq;
public class Test
{
    public static void Main()
    {   
		string[] tests = new string[]{
		    @"*\\*",
		    @"*\\\**",
		    @"*\**",
		};
		
		Regex re = new Regex(@"(?:[^*\\]+|\\.)+|\*");
		
		foreach (string s in tests) {
			var parts = re.Matches(s)
             .OfType<Match>()
             .Select(m => m.Value)
             .ToList();
             
		    Console.WriteLine(string.Join(", ", parts.ToArray()));
		}
    }
}