Natools

------------------------------------------------------------------------------
-- Copyright (c) 2013, Natacha Porté                                        --
-- Copyright (c) 2013-2016, Natacha Porté                                   --
--                                                                          --
-- Permission to use, copy, modify, and distribute this software for any    --
-- purpose with or without fee is hereby granted, provided that the above   --
-- copyright notice and this permission notice appear in all copies.        --
--                                                                          --
-- THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES --
-- WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF         --
-- MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR  --
-- ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES   --
-- WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN    --
-- ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF  --
-- OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.           --
------------------------------------------------------------------------------

package body Natools.String_Slices is

   use type String_Refs.Reference;
   use type String_Refs.Immutable_Reference;


   -----------------------------
   -- String_Range primitives --
   -----------------------------

   function Is_In (Point : Natural; Reference : String_Range) return Boolean is

------------------------------------------------------------------------------
-- Copyright (c) 2013, Natacha Porté                                        --
-- Copyright (c) 2013-2016, Natacha Porté                                   --
--                                                                          --
-- Permission to use, copy, modify, and distribute this software for any    --
-- purpose with or without fee is hereby granted, provided that the above   --
-- copyright notice and this permission notice appear in all copies.        --
--                                                                          --
-- THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES --
-- WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF         --

   package String_Refs is new References
     (String,
      Storage_Pools.Access_In_Default_Pool'Storage_Pool,
      Storage_Pools.Access_In_Default_Pool'Storage_Pool);

   type Slice is tagged record
      Bounds : String_Range := (1, 0);
      Ref : String_Refs.Reference;
      Ref : String_Refs.Immutable_Reference;
   end record;

   Null_Slice : constant Slice := ((1, 0), Ref => <>);

end Natools.String_Slices;