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------------------------------------------------------------------------------

--                                                                          --

--                         GNAT RUN-TIME COMPONENTS                         --

--                                                                          --

--              A D A . S T R I N G S . W I D E _ S E A R C H               --

--                                                                          --

--                                 S p e c                                  --

--                                                                          --

--          Copyright (C) 1992-2005, Free Software Foundation, Inc.         --

--                                                                          --

-- GNAT is free software;  you can  redistribute it  and/or modify it under --

-- terms of the  GNU General Public License as published  by the Free Soft- --

-- ware  Foundation;  either version 2,  or (at your option) any later ver- --

-- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --

-- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --

-- or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License --

-- for  more details.  You should have  received  a copy of the GNU General --

-- Public License  distributed with GNAT;  see file COPYING.  If not, write --

-- to  the  Free Software Foundation,  51  Franklin  Street,  Fifth  Floor, --

-- Boston, MA 02110-1301, USA.                                              --

--                                                                          --

-- As a special exception,  if other files  instantiate  generics from this --

-- unit, or you link  this unit with other files  to produce an executable, --

-- this  unit  does not  by itself cause  the resulting  executable  to  be --

-- covered  by the  GNU  General  Public  License.  This exception does not --

-- however invalidate  any other reasons why  the executable file  might be --

-- covered by the  GNU Public License.                                      --

--                                                                          --

-- GNAT was originally developed  by the GNAT team at  New York University. --

-- Extensive contributions were provided by Ada Core Technologies Inc.      --

--                                                                          --

------------------------------------------------------------------------------

--  This package contains the search functions from Ada.Strings.Wide_Fixed.

--  They are separated out because they are shared by Ada.Strings.Wide_Bounded

--  and Ada.Strings.Wide_Unbounded, and we don't want to drag other irrelevant

--  stuff from Ada.Strings.Wide_Fixed when using the other two packages. We

--  make this a private package, since user programs should access these

--  subprograms via one of the standard string packages.

with Ada.Strings.Wide_Maps;

private package Ada.Strings.Wide_Search is

   pragma Preelaborate;

   function Index

     (Source  : Wide_String;

      Pattern : Wide_String;

      Going   : Direction := Forward;

      Mapping : Wide_Maps.Wide_Character_Mapping :=

                  Wide_Maps.Identity) return Natural;

   function Index

     (Source  : Wide_String;

      Pattern : Wide_String;

      Going   : Direction := Forward;

      Mapping : Wide_Maps.Wide_Character_Mapping_Function) return Natural;

   function Index

     (Source : Wide_String;

      Set    : Wide_Maps.Wide_Character_Set;

      Test   : Membership := Inside;

      Going  : Direction  := Forward) return Natural;

   function Index

     (Source  : Wide_String;

      Pattern : Wide_String;

      From    : Positive;

      Going   : Direction := Forward;

      Mapping : Wide_Maps.Wide_Character_Mapping := Wide_Maps.Identity)

      return Natural;

   function Index

     (Source  : Wide_String;

      Pattern : Wide_String;

      From    : Positive;

      Going   : Direction := Forward;

      Mapping : Wide_Maps.Wide_Character_Mapping_Function) return Natural;

   function Index

     (Source  : Wide_String;

      Set     : Wide_Maps.Wide_Character_Set;

      From    : Positive;

      Test    : Membership := Inside;

      Going   : Direction := Forward) return Natural;

   function Index_Non_Blank

     (Source : Wide_String;

      Going  : Direction := Forward) return Natural;

   function Index_Non_Blank

     (Source : Wide_String;

      From   : Positive;

      Going  : Direction := Forward) return Natural;

   function Count

     (Source  : Wide_String;

      Pattern : Wide_String;

      Mapping : Wide_Maps.Wide_Character_Mapping := Wide_Maps.Identity)

      return Natural;

   function Count

     (Source  : Wide_String;

      Pattern : Wide_String;

      Mapping : Wide_Maps.Wide_Character_Mapping_Function) return Natural;

   function Count

     (Source : Wide_String;

      Set    : Wide_Maps.Wide_Character_Set) return Natural;

   procedure Find_Token

     (Source : Wide_String;

      Set    : Wide_Maps.Wide_Character_Set;

      Test   : Membership;

      First  : out Positive;

      Last   : out Natural);

end Ada.Strings.Wide_Search;