System.Text.RegularExpressions.RegexNode.Description C# (CSharp) Method

        internal string Description()
        {
            StringBuilder ArgSb = new StringBuilder();

            ArgSb.Append(TypeStr[_type]);

            if ((_options & RegexOptions.ExplicitCapture) != 0)
                ArgSb.Append("-C");
            if ((_options & RegexOptions.IgnoreCase) != 0)
                ArgSb.Append("-I");
            if ((_options & RegexOptions.RightToLeft) != 0)
                ArgSb.Append("-L");
            if ((_options & RegexOptions.Multiline) != 0)
                ArgSb.Append("-M");
            if ((_options & RegexOptions.Singleline) != 0)
                ArgSb.Append("-S");
            if ((_options & RegexOptions.IgnorePatternWhitespace) != 0)
                ArgSb.Append("-X");
            if ((_options & RegexOptions.ECMAScript) != 0)
                ArgSb.Append("-E");

            switch (_type)
            {
                case Oneloop:
                case Notoneloop:
                case Onelazy:
                case Notonelazy:
                case One:
                case Notone:
                    ArgSb.Append("(Ch = " + RegexCharClass.CharDescription(_ch) + ")");
                    break;
                case Capture:
                    ArgSb.Append("(index = " + _m.ToString(CultureInfo.InvariantCulture) + ", unindex = " + _n.ToString(CultureInfo.InvariantCulture) + ")");
                    break;
                case Ref:
                case Testref:
                    ArgSb.Append("(index = " + _m.ToString(CultureInfo.InvariantCulture) + ")");
                    break;
                case Multi:
                    ArgSb.Append("(String = " + _str + ")");
                    break;
                case Set:
                case Setloop:
                case Setlazy:
                    ArgSb.Append("(Set = " + RegexCharClass.SetDescription(_str) + ")");
                    break;
            }

            switch (_type)
            {
                case Oneloop:
                case Notoneloop:
                case Onelazy:
                case Notonelazy:
                case Setloop:
                case Setlazy:
                case Loop:
                case Lazyloop:
                    ArgSb.Append("(Min = " + _m.ToString(CultureInfo.InvariantCulture) + ", Max = " + (_n == int.MaxValue ? "inf" : Convert.ToString(_n, CultureInfo.InvariantCulture)) + ")");
                    break;
            }

            return ArgSb.ToString();
        }