------------------------------------------------------------------------------ -- -- -- GNAT RUN-TIME COMPONENTS -- -- -- -- S Y S T E M . W C H _ W T S -- -- -- -- B o d y -- -- -- -- Copyright (C) 1992-2005, 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 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, 51 Franklin Street, Fifth Floor, -- -- Boston, MA 02110-1301, 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 System.WCh_Con; use System.WCh_Con; with System.WCh_Cnv; use System.WCh_Cnv; package body System.WCh_WtS is ----------------------- -- Local Subprograms -- ----------------------- procedure Store_UTF_32_Character (U : UTF_32_Code; S : out String; P : in out Integer; EM : WC_Encoding_Method); -- Stores the string representation of the wide or wide wide character -- whose code is given as U, starting at S (P + 1). P is incremented to -- point to the last character stored. Raises CE if character cannot be -- stored using the given encoding method. ---------------------------- -- Store_UTF_32_Character -- ---------------------------- procedure Store_UTF_32_Character (U : UTF_32_Code; S : out String; P : in out Integer; EM : WC_Encoding_Method) is procedure Out_Char (C : Character); pragma Inline (Out_Char); -- Procedure to increment P and store C at S (P) procedure Store_Chars is new UTF_32_To_Char_Sequence (Out_Char); -------------- -- Out_Char -- -------------- procedure Out_Char (C : Character) is begin P := P + 1; S (P) := C; end Out_Char; begin Store_Chars (U, EM); end Store_UTF_32_Character; --------------------------- -- Wide_String_To_String -- --------------------------- function Wide_String_To_String (S : Wide_String; EM : WC_Encoding_Method) return String is R : String (1 .. 5 * S'Length); -- worst case length! RP : Natural; begin RP := 0; for SP in S'Range loop Store_UTF_32_Character (Wide_Character'Pos (S (SP)), R, RP, EM); end loop; return R (1 .. RP); end Wide_String_To_String; -------------------------------- -- Wide_Wide_Sring_To_String -- -------------------------------- function Wide_Wide_String_To_String (S : Wide_Wide_String; EM : WC_Encoding_Method) return String is R : String (1 .. 7 * S'Length); -- worst case length! RP : Natural; begin RP := 0; for SP in S'Range loop Store_UTF_32_Character (Wide_Wide_Character'Pos (S (SP)), R, RP, EM); end loop; return R (1 .. RP); end Wide_Wide_String_To_String; end System.WCh_WtS;