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

--                                                                          --

--                         GNAT RUN-TIME COMPONENTS                         --

--                                                                          --

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

--                                                                          --

--                                 S p e c                                  --

--                                                                          --

--          Copyright (C) 1992-2009, 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 3,  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.                                     --

--                                                                          --

-- As a special exception under Section 7 of GPL version 3, you are granted --

-- additional permissions described in the GCC Runtime Library Exception,   --

-- version 3.1, as published by the Free Software Foundation.               --

--                                                                          --

-- You should have received a copy of the GNU General Public License and    --

-- a copy of the GCC Runtime Library Exception along with this program;     --

-- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --

-- <http://www.gnu.org/licenses/>.                                          --

--                                                                          --

-- 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.Fixed. They

--  are separated out because they are shared by Ada.Strings.Bounded and

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

--  from Ada.Strings.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.Maps;

private package Ada.Strings.Search is

   pragma Preelaborate;

   function Index

     (Source  : String;

      Pattern : String;

      Going   : Direction := Forward;

      Mapping : Maps.Character_Mapping := Maps.Identity) return Natural;

   function Index

     (Source  : String;

      Pattern : String;

      Going   : Direction := Forward;

      Mapping : Maps.Character_Mapping_Function) return Natural;

   function Index

     (Source : String;

      Set    : Maps.Character_Set;

      Test   : Membership := Inside;

      Going  : Direction  := Forward) return Natural;

   function Index

     (Source  : String;

      Pattern : String;

      From    : Positive;

      Going   : Direction := Forward;

      Mapping : Maps.Character_Mapping := Maps.Identity) return Natural;

   function Index

     (Source  : String;

      Pattern : String;

      From    : Positive;

      Going   : Direction := Forward;

      Mapping : Maps.Character_Mapping_Function) return Natural;

   function Index

     (Source  : String;

      Set     : Maps.Character_Set;

      From    : Positive;

      Test    : Membership := Inside;

      Going   : Direction := Forward) return Natural;

   function Index_Non_Blank

     (Source : String;

      Going  : Direction := Forward) return Natural;

   function Index_Non_Blank

     (Source : String;

      From   : Positive;

      Going  : Direction := Forward) return Natural;

   function Count

     (Source  : String;

      Pattern : String;

      Mapping : Maps.Character_Mapping := Maps.Identity) return Natural;

   function Count

     (Source  : String;

      Pattern : String;

      Mapping : Maps.Character_Mapping_Function) return Natural;

   function Count

     (Source : String;

      Set    : Maps.Character_Set) return Natural;

   procedure Find_Token

     (Source : String;

      Set    : Maps.Character_Set;

      Test   : Membership;

      First  : out Positive;

      Last   : out Natural);

end Ada.Strings.Search;