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1994-05-19
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------------------------------------------------------------------------------
-- --
-- GNAT RUNTIME COMPONENTS --
-- --
-- A D A . S T R I N G S . B O U N D E D --
-- --
-- S p e c --
-- --
-- $Revision: 1.4 $ --
-- --
-- Copyright (c) 1992,1993,1994 NYU, All Rights Reserved --
-- --
-- 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, 675 Mass Ave, Cambridge, MA 02139, USA. --
-- --
------------------------------------------------------------------------------
with Ada.Strings.Maps;
package Ada.Strings.Bounded is
pragma Pure;
Blank : constant Character := ' ';
generic
Max : Positive; -- Maximum length of a Bounded_String
package Generic_Bounded_Length is
Max_Length : constant Positive := Max;
type Bounded_String is private;
Null_Bounded_String : constant Bounded_String;
subtype Length_Range is Natural range 0 .. Max_Length;
------------
-- Length --
------------
function Length (Source : in Bounded_String) return Length_Range;
-----------------------------------------------------
-- Conversion, Catenation, and Selection Functions --
-----------------------------------------------------
function To_Bounded_String
(Source : in String;
Drop : in Truncation := Error)
return Bounded_String;
function To_String (Source : in Bounded_String) return String;
function Append
(Left, Right : in Bounded_String;
Drop : in Truncation := Error)
return Bounded_String;
function Append
(Left : in Bounded_String;
Right : in String;
Drop : in Truncation := Error)
return Bounded_String;
function Append
(Left : in String;
Right : in Bounded_String;
Drop : in Truncation := Error)
return Bounded_String;
function Append
(Left : in Bounded_String;
Right : in Character;
Drop : in Truncation := Error)
return Bounded_String;
function Append
(Left : in Character;
Right : in Bounded_String;
Drop : in Truncation := Error)
return Bounded_String;
function "&" (Left, Right : in Bounded_String)
return Bounded_String;
function "&" (Left : in Bounded_String; Right : in String)
return Bounded_String;
function "&" (Left : in String; Right : in Bounded_String)
return Bounded_String;
function "&" (Left : in Bounded_String; Right : in Character)
return Bounded_String;
function "&" (Left : in Character; Right : in Bounded_String)
return Bounded_String;
function Element
(Source : in Bounded_String;
Index : in Positive)
return Character;
procedure Replace_Element
(Source : in out Bounded_String;
Index : in Positive;
By : in Character);
function Slice
(Source : in Bounded_String;
Low : in Positive;
High : in Natural)
return String;
function "=" (Left, Right : in Bounded_String) return Boolean;
function "<" (Left, Right : in Bounded_String) return Boolean;
function "<=" (Left, Right : in Bounded_String) return Boolean;
function ">" (Left, Right : in Bounded_String) return Boolean;
function ">=" (Left, Right : in Bounded_String) return Boolean;
----------------------
-- Search Functions --
----------------------
function Index
(Source : in Bounded_String;
Pattern : in String;
Going : in Direction := Forward;
Mapping : in Maps.Character_Mapping := Maps.Identity)
return Natural;
function Index
(Source : in Bounded_String;
Set : in Maps.Character_Set;
Test : in Membership := Inside;
Going : in Direction := Forward) return Natural;
function Index_Non_Blank
(Source : in Bounded_String;
Going : in Direction := Forward)
return Natural;
function Count
(Source : in Bounded_String;
Pattern : in String;
Mapping : in Maps.Character_Mapping := Maps.Identity)
return Natural;
function Count
(Source : in Bounded_String;
Set : in Maps.Character_Set)
return Natural;
procedure Find_Token
(Source : in Bounded_String;
Set : in Maps.Character_Set;
Test : in Membership;
First : out Positive;
Last : out Natural);
------------------------------------
-- String Translation Subprograms --
------------------------------------
function Translate
(Source : in Bounded_String;
Mapping : in Maps.Character_Mapping)
return Bounded_String;
procedure Translate
(Source : in out Bounded_String;
Mapping : in Maps.Character_Mapping);
---------------------------------------
-- String Transformation Subprograms --
---------------------------------------
function Replace_Slice
(Source : in Bounded_String;
Low : in Positive;
High : in Natural;
By : in String;
Drop : in Truncation := Error)
return Bounded_String;
procedure Replace_Slice
(Source : in out Bounded_String;
Low : in Positive;
High : in Natural;
By : in String;
Drop : in Truncation := Error);
function Insert
(Source : in Bounded_String;
Before : in Positive;
New_Item : in String;
Drop : in Truncation := Error)
return Bounded_String;
procedure Insert
(Source : in out Bounded_String;
Before : in Positive;
New_Item : in String;
Drop : in Truncation := Error);
function Overwrite
(Source : in Bounded_String;
Position : in Positive;
New_Item : in String;
Drop : in Truncation := Error)
return Bounded_String;
procedure Overwrite
(Source : in out Bounded_String;
Position : in Positive;
New_Item : in String;
Drop : in Truncation := Error);
function Delete
(Source : in Bounded_String;
From : in Positive;
Through : in Natural)
return Bounded_String;
procedure Delete
(Source : in out Bounded_String;
From : in Positive;
Through : in Natural);
---------------------------------
-- String Selector Subprograms --
---------------------------------
function