private void SetRegular(WinterBot sender, string cmd, string value, bool regular) { value = value.Trim().ToLower(); if (!TwitchUsers.IsValidUserName(value)) { sender.WriteDiagnostic(DiagnosticFacility.UserError, "{0}: Invalid username '{1}.", cmd, value); return; } TwitchUser target = sender.Users.GetUser(value); if (regular) { sender.AddRegular(target); sender.SendResponse("{0} added to regular list.", value); } else { sender.RemoveRegular(target); sender.SendResponse("{0} removed from regular list.", value); } }