Method ParseShortOptArg

library/cpp/getopt/small/last_getopt_parser.cpp:130–136

    }

    bool TOptsParser::ParseShortOptArg(size_t pos) {
        Y_ASSERT(pos < Argc_);
        const TStringBuf arg(Argv_[pos]);
        Y_ASSERT(EIO_NONE != IsOpt(arg));
        Y_ASSERT(!arg.StartsWith("--"));
        return ParseShortOptWithinArg(pos, 1);
    }

    bool TOptsParser::ParseOptArg(size_t pos) {
        Y_ASSERT(pos < Argc_);