To not forget anymore

   1:  class Program

   2:  {

   3:      // sample invocation:  "([^a-z|A-Z|0-9])+" "9asdf(sss*df" "_"

   4:      // return:  Substitution : 9asdf_sss_df

   5:      static void Main(string[] args)

   6:      {

   7:          Regex regex = new Regex(args[0]);

   8:          Console.WriteLine(args[0]);

   9:          MatchCollection matches = regex.Matches(args[1]);

  10:          foreach (Match match in matches)

  11:          {

  12:              Console.WriteLine("Match: " + match.Value);

  13:              foreach (Group group in match.Groups)

  14:              {

  15:                  Console.WriteLine(String.Format("  Group (success = {0}): {1}", group.Success, group.Value));

  16:                  foreach (Capture capture in group.Captures)

  17:                  {

  18:                      Console.WriteLine(String.Format("     Capture: {0}", capture.Value));

  19:                  }

  20:              }

  21:          }

  22:          Console.WriteLine("--- Substitution : " + regex.Replace(args[1], args[2]));

  23:      }

  24:  }