Wide_Wide_String Handling

A.4.8 Wide_Wide_String Handling

{AI95-00285-01} {AI95-00395-01} {AI05-0286-1} Facilities for handling strings of Wide_Wide_Character elements are found in the packages Strings.Wide_Wide_Maps, Strings.Wide_Wide_Fixed, Strings.Wide_Wide_Bounded, Strings.Wide_Wide_Unbounded, and Strings.Wide_Wide_Maps.Wide_Wide_Constants, and in the library functions Strings.Wide_Wide_Hash, Strings.Wide_Wide_Fixed.Wide_Wide_Hash, Strings.Wide_Wide_Bounded.Wide_Wide_Hash, Strings.Wide_Wide_Unbounded.Wide_Wide_Hash, Strings.Wide_Wide_Hash_Case_Insensitive, Strings.Wide_Wide_Fixed.Wide_Wide_Hash_Case_Insensitive, Strings.Wide_Wide_Bounded.Wide_Wide_Hash_Case_Insensitive, Strings.Wide_Wide_Unbounded.Wide_Wide_Hash_Case_Insensitive, Strings.Wide_Wide_Equal_Case_Insensitive, Strings.Wide_Wide_Fixed.Wide_Wide_Equal_Case_Insensitive, Strings.Wide_Wide_Bounded.Wide_Wide_Equal_Case_Insensitive, and Strings.Wide_Wide_Unbounded.Wide_Wide_Equal_Case_Insensitive. They provide the same string-handling operations as the corresponding packages and functions for strings of Character elements.

Static Semantics

{AI95-00285-01} The library package Strings.Wide_Wide_Maps has the following declaration.

package Ada.Strings.Wide_Wide_Maps is
pragma Preelaborate(Wide_Wide_Maps);

   -- Representation for a set of Wide_Wide_Character values:
   type Wide_Wide_Character_Set is private;
   pragma Preelaborable_Initialization(Wide_Wide_Character_Set);

Null_Set : constant Wide_Wide_Character_Set;

   type Wide_Wide_Character_Range is
      record
         Low  : Wide_Wide_Character;
         High : Wide_Wide_Character;
      end record;
   -- Represents Wide_Wide_Character range Low..High

type Wide_Wide_Character_Ranges is array (Positive range <>)
of Wide_Wide_Character_Range;

function To_Set (Ranges : in Wide_Wide_Character_Ranges)
return Wide_Wide_Character_Set;

function To_Set (Span : in Wide_Wide_Character_Range)
return Wide_Wide_Character_Set;

function To_Ranges (Set : in Wide_Wide_Character_Set)
return Wide_Wide_Character_Ranges;

function "=" (Left, Right : in Wide_Wide_Character_Set) return Boolean;

function "not" (Rig