AK.Symbol.ToString C# (CSharp) Method

        public override string ToString()
        {
            switch (type)
            {
                case SymbolType.RealValue:
                case SymbolType.StringVariable:
                    if (variable != null)
                    {
                        return variable.name;
                    }
                    return _value.ToString();
                case SymbolType.OperatorAdd:
                    return "+";
                case SymbolType.StringLiteral:
                    return "\'" + stringValue + "\'";
                case SymbolType.OperatorMultiply:
                    return "*";
                case SymbolType.OperatorDivide:
                    return "/";
                case SymbolType.Pow:
                    return "pow";
                case SymbolType.SubExpression:
                    return "("+subExpression.ToString()+")";
                case SymbolType.Empty:
                    return "(null)";
                case SymbolType.FuncCustom:
                    return customFunc.name;
            }
            return "";
        }

 public override string ToString()
 {
     if (root.type == SymbolType.SubExpression)
     {
         var s = root.ToString();
         return(s.Substring(1, s.Length - 2));
     }
     else
     {
         return(root.ToString());
     }
 }