std::string &escape_path_spaces(std::string &s);

}
std::string &escape_path_spaces(std::string &s)
{
    std::string result;
    result.clear();
#ifdef UNIX
    for (const char* ch = s.c_str(); *ch != '\0'; ++ch)
    {
        if (*ch == ' ')
        {
            result += '\\';
        }
        result += *ch;
    }
#elif defined(WIN32CONSOLE) || defined(WIN32TILES)
    if (s.find(" ") != std::string::npos &&
        s.find("\"") == std::string::npos)
    {
        result = "\"" + s + "\"";
    } else {
        return s;
    }
#else
	// Not implemented for this platform. Assume that
	// escaping isn't necessary.
	return s;
#endif
    s = result;
	return s;