Method string binary_escape_string

include/CLI/impl/StringTools_inl.hpp:434–474

}

CLI11_INLINE std::string binary_escape_string(const std::string &string_to_escape, bool force) {
    // s is our escaped output string
    std::string escaped_string{};
    // loop through all characters
    for(char c : string_to_escape) {
        // check if a given character is printable
        // the cast is necessary to avoid undefined behaviour
        if(isprint(static_cast<unsigned char>(c)) == 0) {
            std::stringstream stream;
            // if the character is not printable
            // we'll convert it to a hex string using a stringstream
            // note that since char is signed we have to cast it to unsigned first
            stream << std::hex << static_cast<unsigned int>(static_cast<unsigned char>(c));
            std::string code = stream.str();
            escaped_string += std::string("\\x") + (code.size() < 2 ? "0" : "") + code;
        } else if(c == 'x' || c == 'X') {
            // need to check for inadvertent binary sequences
            if(!escaped_string.empty() && escaped_string.back() == '\\') {
                escaped_string += std::string("\\x") + (c == 'x' ? "78" : "58");
            } else {
                escaped_string.push_back(c);
            }

        } else {
            escaped_string.push_back(c);
        }
    }
    if(escaped_string != string_to_escape || force) {
        auto sqLoc = escaped_string.find('\'');
        while(sqLoc != std::string::npos) {
            escaped_string[sqLoc] = '\\';
            escaped_string.insert(sqLoc + 1, "x27");
            sqLoc = escaped_string.find('\'');
        }
        escaped_string.insert(0, "'B\"(");
        escaped_string.push_back(')');
        escaped_string.push_back('"');
        escaped_string.push_back('\'');
    }
    return escaped_string;
}

CLI11_INLINE bool is_binary_escaped_string(const std::string &escaped_string) {
    size_t ssize = escaped_string.size();