New Language: Ada

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@45957 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 87 insertions, 0 deletions

diff --git a/gcc/ada/s-imgwch.adb b/gcc/ada/s-imgwch.adb
new file mode 100644
index 00000000000..487889b5d07
--- /dev/null
+++ b/gcc/ada/s-imgwch.adb
@@ -0,0 +1,87 @@
+-----------------------------------------------------------------------------
+--                                                                          --
+--                         GNAT RUN-TIME COMPONENTS                         --
+--                                                                          --
+--                     S Y S T E M . I M G _ W C H A R                      --
+--                                                                          --
+--                                 B o d y                                  --
+--                                                                          --
+--                            $Revision: 1.15 $                             --
+--                                                                          --
+--          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). --
+--                                                                          --
+------------------------------------------------------------------------------
+
+with System.Img_Char; use System.Img_Char;
+with System.WCh_Con;  use System.WCh_Con;
+with System.WCh_WtS;  use System.WCh_WtS;
+
+package body System.Img_WChar is
+
+   --------------------------
+   -- Image_Wide_Character --
+   --------------------------
+
+   function Image_Wide_Character
+     (V    : Wide_Character;
+      EM   : WC_Encoding_Method)
+      return String
+   is
+      Val : constant Natural := Wide_Character'Pos (V);
+      WS  : Wide_String (1 .. 3);
+
+   begin
+      --  If in range of standard character, use standard character routine
+
+      if Val < 16#80#
+        or else (Val <= 16#FF#
+                  and then EM not in WC_Upper_Half_Encoding_Method)
+      then
+         return Image_Character (Character'Val (Val));
+
+      --  if the value is one of the last two characters in the type, use
+      --  their language-defined names (3.5.2(3)).
+
+      elsif Val = 16#FFFE# then
+         return "FFFE";
+
+      elsif Val = 16#FFFF# then
+         return "FFFF";
+
+      --  Otherwise return an appropriate escape sequence (i.e. one matching
+      --  the convention implemented by Scn.Wide_Char). The easiest thing is
+      --  to build a wide string for the result, and then use the Wide_Value
+      --  function to build the resulting String.
+
+      else
+         WS (1) := ''';
+         WS (2) := V;
+         WS (3) := ''';
+
+         return Wide_String_To_String (WS, EM);
+      end if;
+
+   end Image_Wide_Character;
+
+end System.Img_WChar;