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------------------------------------------------------------------------------
-- --
-- GNAT RUN-TIME COMPONENTS --
-- --
-- S Y S T E M . W C H _ W T S --
-- --
-- S p e c --
-- --
-- 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. --
-- --
------------------------------------------------------------------------------
-- This package contains the routine used to convert wide strings and wide
-- wide stringsto strings for use by wide and wide wide character attributes
-- (value, image etc.) and also by the numeric IO subpackages of
-- Ada.Text_IO.Wide_Text_IO and Ada.Text_IO.Wide_Wide_Text_IO.
with System.WCh_Con;
package System.WCh_WtS is
pragma Pure;
function Wide_String_To_String
(S : Wide_String;
EM : System.WCh_Con.WC_Encoding_Method) return String;
-- This routine simply takes its argument and converts it to a string,
-- using the internal compiler escape sequence convention (defined in
-- package Widechar) to translate characters that are out of range
-- of type String. In the context of the Wide_Value attribute, the
-- argument is the original attribute argument, and the result is used
-- in a call to the corresponding Value attribute function. If the method
-- for encoding is a shift-in, shift-out convention, then it is assumed
-- that normal (non-wide character) mode holds at the start and end of
-- the result string. EM indicates the wide character encoding method.
-- Note: in the WCEM_Brackets case, we only use the brackets encoding
-- for characters greater than 16#FF#.
function Wide_Wide_String_To_String
(S : Wide_Wide_String;
EM : System.WCh_Con.WC_Encoding_Method) return String;
-- Same processing, except for Wide_Wide_String
end System.WCh_WtS;
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