Function join

src/call.cpp:83–91

}

std::string join(const std::vector<std::string> &s, const char* delim) {
    std::ostringstream imploded;
    std::copy(s.begin(), s.end(), std::ostream_iterator<std::string>(imploded, delim));
    std::string ret = imploded.str();
    if (ret.length()) {
        ret.resize(ret.length() - strlen(delim));
    }
    return ret;
}

std::string trim(const std::string &s) {
    size_t first = s.find_first_not_of(' ');