------------------------------------------------------------------------------ -- -- -- GNAT RUNTIME COMPONENTS -- -- -- -- S Y S T E M . W C H _ S T W -- -- -- -- 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, 59 Temple Place - Suite 330, Boston, -- -- MA 02111-1307, 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 strings to wide (wide) -- strings for use by wide (wide) character attributes (value, image etc.) with System.WCh_Con; package System.WCh_StW is pragma Pure (WCh_StW); function String_To_Wide_String (S : String; EM : System.WCh_Con.WC_Encoding_Method) return Wide_String; -- This routine simply takes its argument and converts it to wide string -- format. In the context of the Wide_Image attribute, the argument is -- the corresponding 'Image attribute. Any wide character escape sequences -- in the string are converted to the corresponding wide character value. -- No syntax checks are made, it is assumed that any such sequences are -- validly formed (this must be assured by the caller), and results from -- the fact that Wide_Image is only used on strings that have been built -- by the compiler, such as images of enumeration literals. 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 argument string. EM indicates the wide character encoding method. -- Note: in the WCEM_Brackets case, the brackets escape sequence is used -- only for codes greater than 16#FF#. function String_To_Wide_Wide_String (S : String; EM : System.WCh_Con.WC_Encoding_Method) return Wide_Wide_String; -- Same function with Wide_Wide_String output end System.WCh_StW;