Package Name: ada.strings.fixed

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------------------------------------------------------------------------------
--                                                                          --
--                         GNAT RUNTIME COMPONENTS                          --
--                                                                          --
--                    A D A . S T R I N G S . F I X E D                     --
--                                                                          --
--                                 S p e c                                  --
--                                                                          --
--                            $Revision: 1.9 $                              --
--                                                                          --
-- This specification is adapted 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 (Fixed);
   --------------------------------------------------------------
   -- Copy Procedure for Strings of Possibly Different Lengths --

   --------------------------------------------------------------
   procedure Move
     (Source  : in  String;
      Target  : out String;
      Drop    : in  Truncation := Error;
      Justify : in  Alignment  := Left;

      Pad     : in  Character  := Space);
   ------------------------
   -- Search Subprograms --

   ------------------------
   function Index
     (Source   : in String;
      Pattern  : in String;
      Going    : in Direction := Forward;
      Mapping  : in Maps.Character_Mapping := Maps.Identity)

      return     Natural;
   function Index
     (Source   : in String;
      Pattern  : in String;
      Going    : in Direction := Forward;
      Mapping  : in Maps.Character_Mapping_Function)

      return     Natural;
   function Index
     (Source : in String;
      Set    : in Maps.Character_Set;
      Test   : in Membership := Inside;
      Going  : in Direction  := Forward)

      return   Natural;
   function Index_Non_Blank
     (Source : in String;
      Going  : in Direction := Forward)

      return   Natural;
   function Count
     (Source   : in String;
      Pattern  : in String;
      Mapping  : in Maps.Character_Mapping := Maps.Identity)

      return     Natural;
   function Count
     (Source   : in String;
      Pattern  : in String;
      Mapping  : in Maps.Character_Mapping_Function)

      return     Natural;
   function Count
     (Source   : in String;
      Set      : in Maps.Character_Set)

      return     Natural;
   procedure Find_Token
     (Source : in String;
      Set    : in Maps.Character_Set;
      Test   : in Membership;
      First  : out Positive;

      Last   : out Natural);
   ------------------------------------
   -- String Translation Subprograms --

   ------------------------------------
   function Translate
     (Source  : in String;
      Mapping : in Maps.Character_Mapping)

      return    String;
   procedure Translate
     (Source  : in out String;

      Mapping : in Maps.Character_Mapping);
   function Translate
     (Source  : in String;
      Mapping : in Maps.Character_Mapping_Function)

      return    String;
   procedure Translate
     (Source  : in out String;

      Mapping : in Maps.Character_Mapping_Function);
   ---------------------------------------
   -- String Transformation Subprograms --

   ---------------------------------------
   function Replace_Slice
     (Source : in String;
      Low    : in Positive;
      High   : in Natural;
      By     : in String)

      return   String;
   procedure Replace_Slice
     (Source  : in out String;
      Low     : in Positive;
      High    : in Natural;
      By      : in String;
      Drop    : in Truncation := Error;
      Justify : in Alignment  := Left;

      Pad     : in Character  := Space);
   function Insert
     (Source   : in String;
      Before   : in Positive;
      New_Item : in String)

      return     String;
   procedure Insert
     (Source   : in out String;
      Before   : in Positive;
      New_Item : in String;

      Drop     : in Truncation := Error);
   function Overwrite
     (Source   : in String;
      Position : in Positive;
      New_Item : in String)

      return     String;
   procedure Overwrite
     (Source   : in out String;
      Position : in Positive;
      New_Item : in String;

      Drop     : in Truncation := Right);
   function Delete
     (Source  : in String;
      From    : in Positive;
      Through : in Natural)

      return    String;
   procedure Delete
     (Source  : in out String;
      From    : in Positive;
      Through : in Natural;
      Justify : in Alignment := Left;

      Pad     : in Character := Space);
   ---------------------------------
   -- String Selector Subprograms --

   ---------------------------------
   function Trim
     (Source : in String;
      Side   : in Trim_End)

      return   String;
   procedure Trim
     (Source  : in out String;
      Side    : in Trim_End;
      Justify : in Alignment := Left;

      Pad     : in Character := Space);
   function Trim
     (Source : in String;
      Left   : in Maps.Character_Set;
      Right  : in Maps.Character_Set)

      return   String;
   procedure Trim
     (Source  : in out String;
      Left    : in Maps.Character_Set;
      Right   : in Maps.Character_Set;
      Justify : in Alignment := Strings.Left;

      Pad     : in Character := Space);
   function Head
     (Source : in String;
      Count  : in Natural;
      Pad    : in Character := Space)

      return   String;
   procedure Head
     (Source  : in out String;
      Count   : in Natural;
      Justify : in Alignment := Left;

      Pad     : in Character := Space);
   function Tail
     (Source : in String;
      Count  : in Natural;
      Pad    : in Character := Space)

      return   String;
   procedure Tail
     (Source  : in out String;
      Count   : in Natural;
      Justify : in Alignment := Left;

      Pad     : in Character := Space);
   ----------------------------------
   -- String Constructor Functions --

   ----------------------------------
   function "*"
     (Left  : in Natural;
      Right : in Character)

      return  String;
   function "*"
     (Left  : in Natural;
      Right : in String)

      return  String;
end Ada.Strings.Fixed;