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

--                                                                          --

--                         GNAT RUN-TIME COMPONENTS                         --

--                                                                          --

--                    A D A . S T R I N G S . F I X E D                     --

--                                                                          --

--                                 S p e c                                  --

--                                                                          --

-- This specification is derived from the Ada Reference Manual for use with --

-- GNAT.  In accordance with the copyright of that document, you can freely --

-- copy and modify this specification,  provided that if you redistribute a --

-- modified version,  any changes that you have made are clearly indicated. --

--                                                                          --

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

with Ada.Strings.Maps;

package Ada.Strings.Fixed is

   pragma Preelaborate;

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

   -- Copy Procedure for Strings of Possibly Different Lengths --

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

   procedure Move

     (Source  : String;

      Target  : out String;

      Drop    : Truncation := Error;

      Justify : Alignment  := Left;

      Pad     : Character  := Space);

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

   -- Search Subprograms --

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

   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;

   pragma Ada_05 (Index);

   function Index

     (Source  : String;

      Pattern : String;

      From    : Positive;

      Going   : Direction := Forward;

      Mapping : Maps.Character_Mapping_Function) return Natural;

   pragma Ada_05 (Index);

   function Index

     (Source  : String;

      Set     : Maps.Character_Set;

      From    : Positive;

      Test    : Membership := Inside;

      Going   : Direction := Forward) return Natural;

   pragma Ada_05 (Index);

   function Index_Non_Blank

     (Source : String;

      Going  : Direction := Forward) return Natural;

   function Index_Non_Blank

     (Source : String;

      From   : Positive;

      Going  : Direction := Forward) return Natural;

   pragma Ada_05 (Index_Non_Blank);

   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);

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

   -- String Translation Subprograms --

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

   function Translate

     (Source  : String;

      Mapping : Maps.Character_Mapping) return String;

   procedure Translate

     (Source  : in out String;

      Mapping : Maps.Character_Mapping);

   function Translate

     (Source  : String;

      Mapping : Maps.Character_Mapping_Function) return String;

   procedure Translate

     (Source  : in out String;

      Mapping : Maps.Character_Mapping_Function);

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

   -- String Transformation Subprograms --

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

   function Replace_Slice

     (Source : String;

      Low    : Positive;

      High   : Natural;

      By     : String) return String;

   procedure Replace_Slice

     (Source  : in out String;

      Low     : Positive;

      High    : Natural;

      By      : String;

      Drop    : Truncation := Error;

      Justify : Alignment  := Left;

      Pad     : Character  := Space);

   function Insert

     (Source   : String;

      Before   : Positive;

      New_Item : String) return String;

   procedure Insert

     (Source   : in out String;

      Before   : Positive;

      New_Item : String;

      Drop     : Truncation := Error);

   function Overwrite

     (Source   : String;

      Position : Positive;

      New_Item : String) return String;

   procedure Overwrite

     (Source   : in out String;

      Position : Positive;

      New_Item : String;

      Drop     : Truncation := Right);

   function Delete

     (Source  : String;

      From    : Positive;

      Through : Natural) return String;

   procedure Delete

     (Source  : in out String;

      From    : Positive;

      Through : Natural;

      Justify : Alignment := Left;

      Pad     : Character := Space);

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

   -- String Selector Subprograms --

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

   function Trim

     (Source : String;

      Side   : Trim_End) return String;

   procedure Trim

     (Source  : in out String;

      Side    : Trim_End;

      Justify : Alignment := Left;

      Pad     : Character := Space);

   function Trim

     (Source : String;

      Left   : Maps.Character_Set;

      Right  : Maps.Character_Set) return String;

   procedure Trim

     (Source  : in out String;

      Left    : Maps.Character_Set;

      Right   : Maps.Character_Set;

      Justify : Alignment := Strings.Left;

      Pad     : Character := Space);

   function Head

     (Source : String;

      Count  : Natural;

      Pad    : Character := Space) return String;

   procedure Head

     (Source  : in out String;

      Count   : Natural;

      Justify : Alignment := Left;

      Pad     : Character := Space);

   function Tail

     (Source : String;

      Count  : Natural;

      Pad    : Character := Space) return String;

   procedure Tail

     (Source  : in out String;

      Count   : Natural;

      Justify : Alignment := Left;

      Pad     : Character := Space);

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

   -- String Constructor Functions --

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

   function "*"

     (Left  : Natural;

      Right : Character) return String;

   function "*"

     (Left  : Natural;

      Right : String) return String;

end Ada.Strings.Fixed;