Dictionary_Maps.Clear (Search_Map);

      for I in Dict.Offsets'Range loop
         Dictionary_Maps.Insert (Search_Map, Dict_Entry (Dict, I), I);
      end loop;
   end Set_Dictionary_For_Map_Search;


   procedure Set_Dictionary_For_Trie_Search (Dict : in Dictionary) is
   begin
      Initialize (Trie_For_Search, Dict);
   end Set_Dictionary_For_Trie_Search;


   function Trie_Search (Value : String) return Natural is
   begin
      return Search (Trie_For_Search, Value);
   end Trie_Search;



   -------------------
   -- Word Counting --
   -------------------

   procedure Add_Substrings

      --  ordered map, that can be used with Dictionary.Hash.

   type Search_Trie is private;
   procedure Initialize (Trie : out Search_Trie; Dict : in Dictionary);
   function Search (Trie : in Search_Trie; Value : in String) return Natural;
      --  Trie-based search in a dynamic dictionary, for lookup whose
      --  speed-vs-memory is even more skewed towards speed.

   procedure Set_Dictionary_For_Trie_Search (Dict : in Dictionary);
   function Trie_Search (Value : String) return Natural;
      --  Function and data source for trie-based search that can be
      --  used with Dictionary.Hash.

   type String_Count is range 0 .. 2 ** 31 - 1;
      --  Type for a number of substring occurrences

   type Word_Counter is private;
      --  Accumulate frequency/occurrence counts for a set of strings

   overriding procedure Adjust (Node : in out Trie_Node);
   overriding procedure Finalize (Node : in out Trie_Node);

   type Search_Trie is record
      Not_Found : Natural;
      Root : Trie_Node (False);
   end record;

   Trie_For_Search : Search_Trie;

end Natools.Smaz.Tools;