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------------------------------------------------------------------------------
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-- --
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-- GNAT RUN-TIME COMPONENTS --
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-- --
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-- S Y S T E M . W C H _ W T S --
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-- --
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-- S p e c --
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-- --
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-- Copyright (C) 1992-2005, Free Software Foundation, Inc. --
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-- --
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-- GNAT is free software; you can redistribute it and/or modify it under --
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-- terms of the GNU General Public License as published by the Free Soft- --
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-- ware Foundation; either version 2, or (at your option) any later ver- --
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-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
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-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
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-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
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-- for more details. You should have received a copy of the GNU General --
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-- Public License distributed with GNAT; see file COPYING. If not, write --
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-- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, --
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-- Boston, MA 02110-1301, USA. --
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-- --
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-- As a special exception, if other files instantiate generics from this --
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-- unit, or you link this unit with other files to produce an executable, --
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-- this unit does not by itself cause the resulting executable to be --
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-- covered by the GNU General Public License. This exception does not --
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-- however invalidate any other reasons why the executable file might be --
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-- covered by the GNU Public License. --
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-- --
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-- GNAT was originally developed by the GNAT team at New York University. --
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-- Extensive contributions were provided by Ada Core Technologies Inc. --
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-- --
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------------------------------------------------------------------------------
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-- This package contains the routine used to convert wide strings and wide
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-- wide stringsto strings for use by wide and wide wide character attributes
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-- (value, image etc.) and also by the numeric IO subpackages of
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-- Ada.Text_IO.Wide_Text_IO and Ada.Text_IO.Wide_Wide_Text_IO.
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with System.WCh_Con;
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package System.WCh_WtS is
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pragma Pure;
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function Wide_String_To_String
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(S : Wide_String;
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EM : System.WCh_Con.WC_Encoding_Method) return String;
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-- This routine simply takes its argument and converts it to a string,
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-- using the internal compiler escape sequence convention (defined in
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-- package Widechar) to translate characters that are out of range
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-- of type String. In the context of the Wide_Value attribute, the
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-- argument is the original attribute argument, and the result is used
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-- in a call to the corresponding Value attribute function. If the method
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-- for encoding is a shift-in, shift-out convention, then it is assumed
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-- that normal (non-wide character) mode holds at the start and end of
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-- the result string. EM indicates the wide character encoding method.
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-- Note: in the WCEM_Brackets case, we only use the brackets encoding
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-- for characters greater than 16#FF#.
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function Wide_Wide_String_To_String
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(S : Wide_Wide_String;
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EM : System.WCh_Con.WC_Encoding_Method) return String;
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-- Same processing, except for Wide_Wide_String
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end System.WCh_WtS;
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