using System;

using System.Linq;

using System.Text.RegularExpressions;

​

public class Program

{

    public static void Main()

    {

        var tables = new string[]{"_delete_Test", "Test", "_delete_TestAudit", "TestAudit", "Audit"};

        var tableFilter = "^(?!_delete_).*?(?<!Audit)$";

        var table = String.Format("^{0}$", Regex.Replace(tableFilter, @"([^\.])\*", "$1.*"));

        Console.WriteLine(table);

        var allMatches = tables.Where(t => Regex.IsMatch(t, table, RegexOptions.IgnoreCase)).ToList();

        allMatches.ForEach(m => Console.WriteLine(m));

    }

}