Natools

         Original : constant Dictionary := Dict.Element;
         Worst_Index : constant Dictionary_Entry
           := Worst_Element
              (Original, Counts, Method, First, Last_Code (Original));
         Worst_Value : constant String
           := Dict_Entry (Original, Worst_Index);
         Worst_Count : constant String_Count := Counts (Worst_Index);
         Worst_Removed : Boolean := False;
         Base : constant Dictionary
           := Remove_Element (Original, Worst_Index);
         Old_Score : constant Ada.Streams.Stream_Element_Count := Score;
      begin
         Updated := False;

         for Position in Pending_Words.Iterate loop

                 (Job_Count, New_Dict, Input_Texts, New_Score, New_Counts);

               if New_Score < Score then
                  Dict := Holders.To_Holder (New_Dict);
                  Score := New_Score;
                  Counts := New_Counts;
                  No_Longer_Pending := Position;
                  Worst_Removed := True;
                  Updated := True;
                  Log_Message := Ada.Strings.Unbounded.To_Unbounded_String
                    ("Removing"
                     & Worst_Count'Img & "x "
                     & Natools.String_Escapes.C_Escape_Hex (Worst_Value, True)
                     & ", adding"
                     & Counts (Last_Code (New_Dict))'Img & "x "

                 (Job_Count, Base, Input_Texts, New_Score, New_Counts);

               if New_Score <= Score then
                  Dict := Holders.To_Holder (Base);
                  Score := New_Score;
                  Counts := New_Counts;
                  No_Longer_Pending := String_Lists.No_Element;
                  Worst_Removed := True;
                  Updated := True;
                  Log_Message := Ada.Strings.Unbounded.To_Unbounded_String
                    ("Removing"
                     & Worst_Count'Img & "x "
                     & Natools.String_Escapes.C_Escape_Hex (Worst_Value, True)
                     & ", size"
                     & Score'Img
                     & " ("
                     & Ada.Streams.Stream_Element_Offset'Image
                        (Score - Old_Score)
                     & ')');
               end if;
            end;
         end if;

         if Updated then
            if String_Lists.Has_Element (No_Longer_Pending) then
               Pending_Words.Delete (No_Longer_Pending);
            end if;

            if Worst_Removed then
               Pending_Words.Append (Worst_Value);
            end if;

            Ada.Text_IO.Put_Line
              (Ada.Text_IO.Current_Error,
               Ada.Strings.Unbounded.To_String (Log_Message));
         end if;
      end Optimization_Round;