private PrimaryTagHandle ParsePrimaryTagHandle(out bool success)
        {
            int errorCount = Errors.Count;
            PrimaryTagHandle primaryTagHandle = new PrimaryTagHandle();

            MatchTerminal('!', out success);
            if (success) { ClearError(errorCount); }
            else { Error("Failed to parse '!' of PrimaryTagHandle."); }
            return primaryTagHandle;
        }
		private PrimaryTagHandle ParsePrimaryTagHandle(out bool success)
		{
			PrimaryTagHandle primaryTagHandle = new PrimaryTagHandle();

			MatchTerminal('!', out success);
			if (!success) { Error("Failed to parse '!' of PrimaryTagHandle."); }
			return primaryTagHandle;
		}