else if (cmd.at(i) == ')') {
                    int counter = 1;
                    while (counter != 0 && i >= 0) {
                        i -= 1;
                        if (cmd.at(i) == '(') {
                            counter -= 1;
                            if (counter == 0) {break;}
                        }
                        else if (cmd.at(i) == ')') {counter += 1;}
                        right.insert(0, 1, cmd.at(i));
                    }
                    if (i != 0) {
                        i -= 3;
                        string left;
                        for (int j = 0; j < i-1; j++) {
                            left.push_back(cmd.at(j));
                        }
                        if (cmd.at(i) == '|' && cmd.at(i+1) == '|') {
                            cout << left << endl;
                            Connector* c1 = makeTree(left); // sets node for left command
                            cout << right << endl;
                            Connector* c2 = makeTree(right);    // connector used for right command
                            // cout << left << endl << right << ":)";
                            //c2->set_cmd(right); //  sets node for right command
                            OrCon* orcmd = new OrCon(c1, c2);   // sets a new orcmd node as parent node
                            return orcmd; // used in this function
                        }
                        else if (cmd.at(i) == '&' && cmd.at(i+1) == '&') {
                            Connector* c1 = makeTree(left);
                            Connector* c2 = makeTree(right);
                            // cout << left << endl << right;
                            //c2->set_cmd(right);
                            AndCon* andcmd = new AndCon(c1,c2);
                            return andcmd;
                        }
                    }
                    else {
                        Connector* rightcmd = makeTree(right);
                        return rightcmd;
                        // for (int i = right.size()-1; i >= 0; i--) {
                        //     else if (cmd.at(i) == '|' && cmd.at(i+1) == '|') {  // separates commands used by or connector
                        //         string left;

                        //         for (int j = 0; j < i-1; j++) { // separates the left command of or connector
                        //             left.push_back(cmd.at(j));
                        //         }
                        //         Connector* c1 = makeTree(left); // sets node for left command
                        //         Connector* c2 = new Connector();    // connector used for right command
                        //         // cout << left << endl << right << ":)";
                        //         c2->set_cmd(right); //  sets node for right command
                        //         OrCon* orcmd = new OrCon(c1, c2);   // sets a new orcmd node as parent node
                        //         return orcmd; // used in this function
                        //     }
                        // }
                    }

                }