去除特殊字符

    std::string ConvertName(TCHAR const * name)
    {
        if (name == 0)
        {
            return std::string(_T("unnamed"));
        }
        std::string ret(name);
        if ((name[0] >= '0') && (name[0] <= '9'))
        {
            ret = std::string("_") + ret;
        }
        for (size_t i = 0; i < ret.size(); ++i)
        {
            TCHAR ch = ret[i];
            if (((ch >= '0') && (ch <= '9'))
                || ((ch >= 'A') && (ch <= 'Z'))
                || ((ch >= 'a') && (ch <= 'z')))
            {
                continue;
            }
            ret[i] = '_';
        }
        return ret;
    }

char const * SafeName(IGameNode * node, char const *prefix)
{
  static char buf[256];
  char const * name = node->GetName();
  if (!name || !name[0]) {
    sprintf(buf, "%s_%lx", prefix, (long)(size_t)node);
    return buf;
  }
  sprintf(buf, "%s_%s", prefix, name);
  for (char *ptr = buf; *ptr; ++ptr) {
    if ((*ptr > 126) || (*ptr < 33) || (*ptr == '/') || (*ptr == '{') || (*ptr == '}') || (*ptr == '\"' || *ptr == '\'' || *ptr == '#')) {
      *ptr = '_';
    }
  }
  return buf;
}