void ConvertToString(ILiteralToken token, int numBase)
        {
            var baseStr = numBase.ToString();
            var numStr  = "";

            switch (numBase)
            {
            case 16:
                numStr = token.ToHex();
                break;

            case 10:
                numStr = token.ToDec();
                break;

            case 8:
                numStr = token.ToOct();
                break;

            case 2:
                numStr = token.ToBin();
                break;

            default:
                baseStr = "";
                return;
            }

            numRun.Text  = numStr;
            baseRun.Text = baseStr;
        }