| ------------------------------------------------------------------------------ |
| -- -- |
| -- GNAT RUN-TIME 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, 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 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; |
| |
| 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; |
