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-------------------------------------------------------------------------------
--- --
--- GNAT RUN-TIME COMPONENTS --
--- --
--- A D A . C H A R A C T E R S . C O N V E R S I O N S --
--- --
--- B o d y --
--- --
--- Copyright (C) 2005-2012, Free Software Foundation, Inc. --
--- --
--- 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 3, 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. --
--- --
--- As a special exception under Section 7 of GPL version 3, you are granted --
--- additional permissions described in the GCC Runtime Library Exception, --
--- version 3.1, as published by the Free Software Foundation. --
--- --
--- You should have received a copy of the GNU General Public License and --
--- a copy of the GCC Runtime Library Exception along with this program; --
--- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
--- <http://www.gnu.org/licenses/>. --
--- --
--- GNAT was originally developed by the GNAT team at New York University. --
--- Extensive contributions were provided by Ada Core Technologies Inc. --
--- --
-------------------------------------------------------------------------------
-
-package body Ada.Characters.Conversions is
-
- ------------------
- -- Is_Character --
- ------------------
-
- function Is_Character (Item : Wide_Character) return Boolean is
- begin
- return Wide_Character'Pos (Item) < 256;
- end Is_Character;
-
- function Is_Character (Item : Wide_Wide_Character) return Boolean is
- begin
- return Wide_Wide_Character'Pos (Item) < 256;
- end Is_Character;
-
- ---------------
- -- Is_String --
- ---------------
-
- function Is_String (Item : Wide_String) return Boolean is
- begin
- for J in Item'Range loop
- if Wide_Character'Pos (Item (J)) >= 256 then
- return False;
- end if;
- end loop;
-
- return True;
- end Is_String;
-
- function Is_String (Item : Wide_Wide_String) return Boolean is
- begin
- for J in Item'Range loop
- if Wide_Wide_Character'Pos (Item (J)) >= 256 then
- return False;
- end if;
- end loop;
-
- return True;
- end Is_String;
-
- -----------------------
- -- Is_Wide_Character --
- -----------------------
-
- function Is_Wide_Character (Item : Wide_Wide_Character) return Boolean is
- begin
- return Wide_Wide_Character'Pos (Item) < 2**16;
- end Is_Wide_Character;
-
- --------------------
- -- Is_Wide_String --
- --------------------
-
- function Is_Wide_String (Item : Wide_Wide_String) return Boolean is
- begin
- for J in Item'Range loop
- if Wide_Wide_Character'Pos (Item (J)) >= 2**16 then
- return False;
- end if;
- end loop;
-
- return True;
- end Is_Wide_String;
-
- ------------------
- -- To_Character --
- ------------------
-
- function To_Character
- (Item : Wide_Character;
- Substitute : Character := ' ') return Character
- is
- begin
- if Is_Character (Item) then
- return Character'Val (Wide_Character'Pos (Item));
- else
- return Substitute;
- end if;
- end To_Character;
-
- function To_Character
- (Item : Wide_Wide_Character;
- Substitute : Character := ' ') return Character
- is
- begin
- if Is_Character (Item) then
- return Character'Val (Wide_Wide_Character'Pos (Item));
- else
- return Substitute;
- end if;
- end To_Character;
-
- ---------------
- -- To_String --
- ---------------
-
- function To_String
- (Item : Wide_String;
- Substitute : Character := ' ') return String
- is
- Result : String (1 .. Item'Length);
-
- begin
- for J in Item'Range loop
- Result (J - (Item'First - 1)) := To_Character (Item (J), Substitute);
- end loop;
-
- return Result;
- end To_String;
-
- function To_String
- (Item : Wide_Wide_String;
- Substitute : Character := ' ') return String
- is
- Result : String (1 .. Item'Length);
-
- begin
- for J in Item'Range loop
- Result (J - (Item'First - 1)) := To_Character (Item (J), Substitute);
- end loop;
-
- return Result;
- end To_String;
-
- -----------------------
- -- To_Wide_Character --
- -----------------------
-
- function To_Wide_Character
- (Item : Character) return Wide_Character
- is
- begin
- return Wide_Character'Val (Character'Pos (Item));
- end To_Wide_Character;
-
- function To_Wide_Character
- (Item : Wide_Wide_Character;
- Substitute : Wide_Character := ' ') return Wide_Character
- is
- begin
- if Wide_Wide_Character'Pos (Item) < 2**16 then
- return Wide_Character'Val (Wide_Wide_Character'Pos (Item));
- else
- return Substitute;
- end if;
- end To_Wide_Character;
-
- --------------------
- -- To_Wide_String --
- --------------------
-
- function To_Wide_String
- (Item : String) return Wide_String
- is
- Result : Wide_String (1 .. Item'Length);
-
- begin
- for J in Item'Range loop
- Result (J - (Item'First - 1)) := To_Wide_Character (Item (J));
- end loop;
-
- return Result;
- end To_Wide_String;
-
- function To_Wide_String
- (Item : Wide_Wide_String;
- Substitute : Wide_Character := ' ') return Wide_String
- is
- Result : Wide_String (1 .. Item'Length);
-
- begin
- for J in Item'Range loop
- Result (J - (Item'First - 1)) :=
- To_Wide_Character (Item (J), Substitute);
- end loop;
-
- return Result;
- end To_Wide_String;
-
- ----------------------------
- -- To_Wide_Wide_Character --
- ----------------------------
-
- function To_Wide_Wide_Character
- (Item : Character) return Wide_Wide_Character
- is
- begin
- return Wide_Wide_Character'Val (Character'Pos (Item));
- end To_Wide_Wide_Character;
-
- function To_Wide_Wide_Character
- (Item : Wide_Character) return Wide_Wide_Character
- is
- begin
- return Wide_Wide_Character'Val (Wide_Character'Pos (Item));
- end To_Wide_Wide_Character;
-
- -------------------------
- -- To_Wide_Wide_String --
- -------------------------
-
- function To_Wide_Wide_String
- (Item : String) return Wide_Wide_String
- is
- Result : Wide_Wide_String (1 .. Item'Length);
-
- begin
- for J in Item'Range loop
- Result (J - (Item'First - 1)) := To_Wide_Wide_Character (Item (J));
- end loop;
-
- return Result;
- end To_Wide_Wide_String;
-
- function To_Wide_Wide_String
- (Item : Wide_String) return Wide_Wide_String
- is
- Result : Wide_Wide_String (1 .. Item'Length);
-
- begin
- for J in Item'Range loop
- Result (J - (Item'First - 1)) := To_Wide_Wide_Character (Item (J));
- end loop;
-
- return Result;
- end To_Wide_Wide_String;
-
-end Ada.Characters.Conversions;
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