gistfile1.txt

 function strConcat(string _a, string _b, string _c, string _d, string _e, string _f, string _g) internal returns (string) {
        bytes memory _ba = bytes(_a);
        bytes memory _bb = bytes(_b);
        bytes memory _bc = bytes(_c);
        bytes memory _bd = bytes(_d);
        bytes memory _be = bytes(_e);
        bytes memory _bf = bytes(_f);
        bytes memory _bg = bytes(_g);
        string memory abcdefg = new string(_ba.length + _bb.length + _bc.length + _bd.length + _be.length + _bf.length + _bg.length);
        bytes memory babcdefg = bytes(abcdefg);
        uint k = 0;
        for (uint i = 0; i < _ba.length; i++) babcdefg[k++] = _ba[i];
        for (i = 0; i < _bb.length; i++) babcdefg[k++] = _bb[i];
        for (i = 0; i < _bc.length; i++) babcdefg[k++] = _bc[i];
        for (i = 0; i < _bd.length; i++) babcdefg[k++] = _bd[i];
        for (i = 0; i < _be.length; i++) babcdefg[k++] = _be[i];
        for (i = 0; i < _bf.length; i++) babcdefg[k++] = _bf[i];
        for (i = 0; i < _bg.length; i++) babcdefg[k++] = _bg[i];
        return string(babcdefg);
    }