126 lines
4.7 KiB
Ada
126 lines
4.7 KiB
Ada
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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 . I M G _ W C H A R --
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-- --
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-- B o d y --
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-- --
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-- Copyright (C) 1992-2010, 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 3, 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. --
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-- --
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-- As a special exception under Section 7 of GPL version 3, you are granted --
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-- additional permissions described in the GCC Runtime Library Exception, --
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-- version 3.1, as published by the Free Software Foundation. --
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-- --
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-- You should have received a copy of the GNU General Public License and --
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-- a copy of the GCC Runtime Library Exception along with this program; --
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-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
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-- <http://www.gnu.org/licenses/>. --
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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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with Interfaces; use Interfaces;
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with System.Img_Char; use System.Img_Char;
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package body System.Img_WChar is
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--------------------------
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-- Image_Wide_Character --
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--------------------------
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procedure Image_Wide_Character
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(V : Wide_Character;
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S : in out String;
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P : out Natural;
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Ada_2005 : Boolean)
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is
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pragma Assert (S'First = 1);
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begin
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-- Annoying Ada 95 incompatibility with FFFE/FFFF
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if V >= Wide_Character'Val (16#FFFE#)
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and then not Ada_2005
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then
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if V = Wide_Character'Val (16#FFFE#) then
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S (1 .. 4) := "FFFE";
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else
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S (1 .. 4) := "FFFF";
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end if;
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P := 4;
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-- Deal with annoying Ada 95 incompatibility with soft hyphen
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elsif V = Wide_Character'Val (16#00AD#)
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and then not Ada_2005
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then
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P := 3;
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S (1) := ''';
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S (2) := Character'Val (16#00AD#);
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S (3) := ''';
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-- Normal case, same as Wide_Wide_Character
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else
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Image_Wide_Wide_Character
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(Wide_Wide_Character'Val (Wide_Character'Pos (V)), S, P);
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end if;
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end Image_Wide_Character;
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-------------------------------
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-- Image_Wide_Wide_Character --
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-------------------------------
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procedure Image_Wide_Wide_Character
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(V : Wide_Wide_Character;
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S : in out String;
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P : out Natural)
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is
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pragma Assert (S'First = 1);
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Val : Unsigned_32 := Wide_Wide_Character'Pos (V);
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begin
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-- If in range of standard Character, use Character routine. Use the
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-- Ada 2005 version, since either we are called directly in Ada 2005
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-- mode for Wide_Wide_Character, or this is the Wide_Character case
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-- which already took care of the Soft_Hyphen glitch.
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if Val <= 16#FF# then
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Image_Character_05
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(Character'Val (Wide_Wide_Character'Pos (V)), S, P);
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-- Otherwise value returned is Hex_hhhhhhhh
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else
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declare
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Hex : constant array (Unsigned_32 range 0 .. 15) of Character :=
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"0123456789ABCDEF";
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begin
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S (1 .. 4) := "Hex_";
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for J in reverse 5 .. 12 loop
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S (J) := Hex (Val mod 16);
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Val := Val / 16;
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end loop;
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P := 12;
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end;
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end if;
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end Image_Wide_Wide_Character;
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end System.Img_WChar;
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