Method PrintFreeArgsDesc

library/cpp/getopt/small/last_getopt_opts.cpp:491–536

    }

    void TOpts::PrintFreeArgsDesc(IOutputStream& os, const NColorizer::TColors& colors) const {
        if (0 == FreeArgsMax_)
            return;

        size_t leftFreeWidth = 0;
        for (size_t i = 0; i < FreeArgSpecs_.size(); ++i) {
            leftFreeWidth = Max(leftFreeWidth, GetFreeArgTitle(i).size());
        }

        if (!TrailingArgSpec_.IsDefault()) {
            leftFreeWidth = Max(leftFreeWidth, TrailingArgSpec_.GetTitle(DefaultFreeArgTitle_).size());
        }

        leftFreeWidth = Min(leftFreeWidth, size_t(30));
        os << Endl << colors.BoldColor() << "Free args" << colors.OldColor() << ":";

        os << " min: " << colors.GreenColor() << FreeArgsMin_ << colors.OldColor() << ",";
        os << " max: " << colors.GreenColor();
        if (FreeArgsMax_ != UNLIMITED_ARGS) {
            os << FreeArgsMax_;
        } else {
            os << "unlimited";
        }
        os << colors.OldColor() << Endl;

        const size_t limit = GetTrailingArgsIndex();
        for (size_t i = 0; i < limit; ++i) {
            if (!FreeArgSpecs_.contains(i)) {
                continue;
            }

            if (auto help = FreeArgSpecs_.at(i).GetHelp()) {
                auto title = GetFreeArgTitle(i);
                os << SPad << colors.GreenColor() << RightPad(title, leftFreeWidth, ' ') << colors.OldColor()
                   << SPad << help << Endl;
            }
        }

        if (FreeArgsMax_ == UNLIMITED_ARGS) {
            auto title = TrailingArgSpec_.GetTitle(DefaultFreeArgTitle_);
            if (auto help = TrailingArgSpec_.GetHelp()) {
                os << SPad << colors.GreenColor() << RightPad(title, leftFreeWidth, ' ') << colors.OldColor()
                   << SPad << help << Endl;
            }
        }
    }
}