private static boolean Navigate(
     Gfo_usr_dlg usr_dlg,
     Xoae_app app,
     Wdata_wiki_mgr wdata_mgr,
     Xoae_page page,
     byte[] site_bry,
     byte[] page_bry) {
   page_bry =
       Xoa_app_.Utl__encoder_mgr()
           .Http_url()
           .Decode(page_bry); // NOTE: space is converted to + on postback to url; decode
   byte[] wiki_domain = Xow_wiki_alias.Parse_wmf_key(site_bry);
   if (wiki_domain == null) {
     usr_dlg.Warn_many("", "", "site_bry parse failed; site_bry:~{0}", String_.new_u8(site_bry));
     return false;
   }
   Xowe_wiki wiki = app.Wiki_mgr().Get_by_key_or_make(wiki_domain);
   if (wiki == null) {
     usr_dlg.Warn_many(
         "", "", "wiki_domain does not exist; wiki_domain:~{0}", String_.new_u8(wiki_domain));
     return false;
   }
   Xoa_ttl wdata_ttl = Xoa_ttl.parse_(wiki, page_bry);
   if (wdata_ttl == null) {
     usr_dlg.Warn_many("", "", "ttl is invalid; ttl:~{0}", String_.new_u8(page_bry));
     return false;
   }
   Wdata_doc doc = wdata_mgr.Pages_get(wiki, wdata_ttl);
   if (doc == null) {
     usr_dlg.Warn_many(
         "", "", "ttl cannot be found in wikidata; ttl:~{0}", String_.new_u8(wdata_ttl.Raw()));
     return false;
   }
   byte[] qid_bry = doc.Qid();
   Xoae_page qid_page = wdata_mgr.Wdata_wiki().Data_mgr().Redirect(page, qid_bry);
   if (qid_page.Missing()) {
     usr_dlg.Warn_many(
         "", "", "qid cannot be found in wikidata; qid:~{0}", String_.new_u8(qid_bry));
     return false;
   }
   return true;
 }
	public int compare(Object lhsObj, Object rhsObj) {
		Xoa_ttl lhs = (Xoa_ttl)lhsObj, rhs = (Xoa_ttl)rhsObj;
		return Bry_.Compare(lhs.Raw(), rhs.Raw());
	}