static std::string make_short_name(const std::string& long_name)
{
    if(long_name.empty()) {
        return "";
    }

    std::stringstream ss;

    size_t pos = 0;
    while(pos < long_name.size()) {
        pos = long_name.find(' ', pos + 1);

        if(pos <= long_name.size() - 2 && long_name[pos + 1] != '?') {
            ss << long_name[pos + 1];
        }
    }

    return ss.str();
}


===========================================


std::string make_short_name(const std::string& long_name)
{
    if(long_name.empty())
        return "";
    std::string sh;
    bool had_space = true;
    for(size_t i = 1; i < long_name.size(); ++i) {
        if(long_name[i] == ' ') {
            had_space = true;
        } else if(had_space && long_name[i] != '?') {
            sh += long_name[i];
            had_space = false;
        }
    }
    return sh;
}