Method cut_to_length

diff_ext_for_kdiff3/diff_ext.cpp:440–456

}

tstring
DIFF_EXT::cut_to_length(const tstring& in, size_t max_len)
{
    tstring ret;
    if(in.length() > max_len)
    {
        ret = in.substr(0, (max_len - 3) / 2);
        ret += TEXT("...");
        ret += in.substr(in.length() - (max_len - 3) / 2);
    }
    else
    {
        ret = in;
    }

    return ret;
}