Backup ParseExpression v1

void CTree::vParseExpression(string sText) {
    vector <string> items;
    int i = 0;
    string sTemp = "";
    while (i <= (sText.size())) {
        if (sText[i] != ' ') {
            sTemp += sText[i];
            i++;
        }
        else {
            while (i + 1 <= sText.size() && sText[i + 1] == ' ') {
                i++;
            }
            items.push_back(sTemp);
            sTemp = "";
            i++;
        }
        if (i == sText.size()) {
            items.push_back(sTemp);
        }
    }

    for (int i = 0; i < items.size(); i++) {
        //cout << items[i] << ", ";
    }
    //cout << endl;

    int iIndex = 1;
    pRoot = new CNode(items[0], NULL);
    CNode * pCurrentNode = pRoot;
    CNode * pTempNode;
    while (iIndex < items.size()) {
        if (iIsOperator(pCurrentNode->sGetValue()) >= 1 && iIsOperator(pCurrentNode->sGetValue()) <= 4) {
            if (pCurrentNode->pvGetChildren()->size() < 2) {
                pTempNode = new CNode(items[iIndex++], pCurrentNode);
                pCurrentNode->vAddChild(pTempNode);
                pCurrentNode = pTempNode;
            }
            else {
                if (pCurrentNode->pGetParent() == NULL) {
                    cout << "Pomijam" << endl;
                    iIndex++;
                }
                else pCurrentNode = pCurrentNode->pGetParent();
            }
        }
        else if (iIsOperator(pCurrentNode->sGetValue()) >= 5 && iIsOperator(pCurrentNode->sGetValue()) <= 6) {
            if (pCurrentNode->pvGetChildren()->size() < 1) {
                pTempNode = new CNode(items[iIndex++], pCurrentNode);
                pCurrentNode->vAddChild(pTempNode);
                pCurrentNode = pTempNode;
            }
            else {
                if (pCurrentNode->pGetParent() == NULL) {
                    cout << "Pomijam" << endl;
                    iIndex++;
                }else pCurrentNode = pCurrentNode->pGetParent();
            }
        }else if (iIsOperator(pCurrentNode->sGetValue()) == 0) {
            if (pCurrentNode->pGetParent() == NULL) {
                cout << "Pomijam" << endl;
                iIndex++;
            }
            else pCurrentNode = pCurrentNode->pGetParent();
        }
    }
}