+++ /dev/null
-------------------------------------------------------------------------------
--- --
--- GNAT RUN-TIME COMPONENTS --
--- --
--- A D A . S T R I N G S . W I D E _ M A P S --
--- --
--- S p e c --
--- --
--- $Revision: 1.1.16.2 $
--- --
--- Copyright (C) 1992-1998 Free Software Foundation, Inc. --
--- --
--- This specification is derived from the Ada Reference Manual for use with --
--- GNAT. The copyright notice above, and the license provisions that follow --
--- apply solely to the contents of the part following the private keyword. --
--- --
--- 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, 59 Temple Place - Suite 330, Boston, --
--- MA 02111-1307, 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. --
--- --
-------------------------------------------------------------------------------
-
-with Ada.Finalization;
-
-package Ada.Strings.Wide_Maps is
- pragma Preelaborate (Wide_Maps);
-
- -------------------------------------
- -- Wide Character Set Declarations --
- -------------------------------------
-
- type Wide_Character_Set is private;
- -- Representation for a set of Wide_Character values:
-
- Null_Set : constant Wide_Character_Set;
-
- ------------------------------------------
- -- Constructors for Wide Character Sets --
- ------------------------------------------
-
- type Wide_Character_Range is record
- Low : Wide_Character;
- High : Wide_Character;
- end record;
- -- Represents Wide_Character range Low .. High
-
- type Wide_Character_Ranges is
- array (Positive range <>) of Wide_Character_Range;
-
- function To_Set
- (Ranges : in Wide_Character_Ranges)
- return Wide_Character_Set;
-
- function To_Set
- (Span : in Wide_Character_Range)
- return Wide_Character_Set;
-
- function To_Ranges
- (Set : in Wide_Character_Set)
- return Wide_Character_Ranges;
-
- ---------------------------------------
- -- Operations on Wide Character Sets --
- ---------------------------------------
-
- function "=" (Left, Right : in Wide_Character_Set) return Boolean;
-
- function "not"
- (Right : in Wide_Character_Set)
- return Wide_Character_Set;
-
- function "and"
- (Left, Right : in Wide_Character_Set)
- return Wide_Character_Set;
-
- function "or"
- (Left, Right : in Wide_Character_Set)
- return Wide_Character_Set;
-
- function "xor"
- (Left, Right : in Wide_Character_Set)
- return Wide_Character_Set;
-
- function "-"
- (Left, Right : in Wide_Character_Set)
- return Wide_Character_Set;
-
- function Is_In
- (Element : in Wide_Character;
- Set : in Wide_Character_Set)
- return Boolean;
-
- function Is_Subset
- (Elements : in Wide_Character_Set;
- Set : in Wide_Character_Set)
- return Boolean;
-
- function "<="
- (Left : in Wide_Character_Set;
- Right : in Wide_Character_Set)
- return Boolean
- renames Is_Subset;
-
- subtype Wide_Character_Sequence is Wide_String;
- -- Alternative representation for a set of character values
-
- function To_Set
- (Sequence : in Wide_Character_Sequence)
- return Wide_Character_Set;
-
- function To_Set
- (Singleton : in Wide_Character)
- return Wide_Character_Set;
-
- function To_Sequence
- (Set : in Wide_Character_Set)
- return Wide_Character_Sequence;
-
- -----------------------------------------
- -- Wide Character Mapping Declarations --
- -----------------------------------------
-
- type Wide_Character_Mapping is private;
- -- Representation for a wide character to wide character mapping:
-
- function Value
- (Map : in Wide_Character_Mapping;
- Element : in Wide_Character)
- return Wide_Character;
-
- Identity : constant Wide_Character_Mapping;
-
- ---------------------------------
- -- Operations on Wide Mappings --
- ---------------------------------
-
- function To_Mapping
- (From, To : in Wide_Character_Sequence)
- return Wide_Character_Mapping;
-
- function To_Domain
- (Map : in Wide_Character_Mapping)
- return Wide_Character_Sequence;
-
- function To_Range
- (Map : in Wide_Character_Mapping)
- return Wide_Character_Sequence;
-
- type Wide_Character_Mapping_Function is
- access function (From : in Wide_Character) return Wide_Character;
-
-private
- package AF renames Ada.Finalization;
-
- ------------------------------------------
- -- Representation of Wide_Character_Set --
- ------------------------------------------
-
- -- A wide character set is represented as a sequence of wide character
- -- ranges (i.e. an object of type Wide_Character_Ranges) in which the
- -- following hold:
-
- -- The lower bound is 1
- -- The ranges are in order by increasing Low values
- -- The ranges are non-overlapping and discontigous
-
- -- A character value is in the set if it is contained in one of the
- -- ranges. The actual Wide_Character_Set value is a controlled pointer
- -- to this Wide_Character_Ranges value. The use of a controlled type
- -- is necessary to prevent storage leaks.
-
- type Wide_Character_Ranges_Access is access all Wide_Character_Ranges;
-
- type Wide_Character_Set is new AF.Controlled with record
- Set : Wide_Character_Ranges_Access;
- end record;
-
- pragma Finalize_Storage_Only (Wide_Character_Set);
- -- This avoids useless finalizations, and, more importantly avoids
- -- incorrect attempts to finalize constants that are statically
- -- declared here and in Ada.Strings.Wide_Maps, which is incorrect.
-
- procedure Initialize (Object : in out Wide_Character_Set);
- procedure Adjust (Object : in out Wide_Character_Set);
- procedure Finalize (Object : in out Wide_Character_Set);
-
- Null_Range : aliased constant Wide_Character_Ranges :=
- (1 .. 0 => (Low => ' ', High => ' '));
-
- Null_Set : constant Wide_Character_Set :=
- (AF.Controlled with
- Set => Null_Range'Unrestricted_Access);
-
- ----------------------------------------------
- -- Representation of Wide_Character_Mapping --
- ----------------------------------------------
-
- -- A wide character mapping is represented as two strings of equal
- -- length, where any character appearing in Domain is mapped to the
- -- corresponding character in Rangev. A character not appearing in
- -- Domain is mapped to itself. The characters in Domain are sorted
- -- in ascending order.
-
- -- The actual Wide_Character_Mapping value is a controlled record
- -- that contains a pointer to a discriminated record containing the
- -- range and domain values.
-
- -- Note: this representation is canonical, and the values stored in
- -- Domain and Rangev are exactly the values that are returned by the
- -- functions To_Domain and To_Range. The use of a controlled type is
- -- necessary to prevent storage leaks.
-
- type Wide_Character_Mapping_Values (Length : Natural) is record
- Domain : Wide_Character_Sequence (1 .. Length);
- Rangev : Wide_Character_Sequence (1 .. Length);
- end record;
-
- type Wide_Character_Mapping_Values_Access is
- access all Wide_Character_Mapping_Values;
-
- type Wide_Character_Mapping is new AF.Controlled with record
- Map : Wide_Character_Mapping_Values_Access;
- end record;
-
- pragma Finalize_Storage_Only (Wide_Character_Mapping);
- -- This avoids useless finalizations, and, more importantly avoids
- -- incorrect attempts to finalize constants that are statically
- -- declared here and in Ada.Strings.Wide_Maps, which is incorrect.
-
- procedure Initialize (Object : in out Wide_Character_Mapping);
- procedure Adjust (Object : in out Wide_Character_Mapping);
- procedure Finalize (Object : in out Wide_Character_Mapping);
-
- Null_Map : aliased constant Wide_Character_Mapping_Values :=
- (Length => 0,
- Domain => "",
- Rangev => "");
-
- Identity : constant Wide_Character_Mapping :=
- (AF.Controlled with
- Map => Null_Map'Unrestricted_Access);
-
-end Ada.Strings.Wide_Maps;
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