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Diffstat (limited to 'gcc/ada/s-wchstw.ads')
| -rw-r--r-- | gcc/ada/s-wchstw.ads | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/gcc/ada/s-wchstw.ads b/gcc/ada/s-wchstw.ads new file mode 100644 index 00000000000..ee4161d1a1c --- /dev/null +++ b/gcc/ada/s-wchstw.ads @@ -0,0 +1,62 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT RUNTIME COMPONENTS -- +-- -- +-- S Y S T E M . W C H _ S T W -- +-- -- +-- S p e c -- +-- -- +-- $Revision: 1.6 $ -- +-- -- +-- Copyright (C) 1992-1998 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. -- +-- It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). -- +-- -- +------------------------------------------------------------------------------ + +-- This package contains the routine used to convert strings to wide +-- strings for use by 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#. + +end System.WCh_StW; |