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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [gcc/] [ada/] [s-imgcha.adb] - Blame information for rev 706

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1 706 jeremybenn 
------------------------------------------------------------------------------
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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 _ 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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package body System.Img_Char is
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   ---------------------
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   -- Image_Character --
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   ---------------------
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   procedure Image_Character
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     (V : 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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      subtype Cname is String (1 .. 3);
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      subtype C0_Range is Character
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        range Character'Val (16#00#) .. Character'Val (16#1F#);
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      C0 : constant array (C0_Range) of Cname :=
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              (Character'Val (16#00#) => "NUL",
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               Character'Val (16#01#) => "SOH",
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               Character'Val (16#02#) => "STX",
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               Character'Val (16#03#) => "ETX",
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               Character'Val (16#04#) => "EOT",
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               Character'Val (16#05#) => "ENQ",
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               Character'Val (16#06#) => "ACK",
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               Character'Val (16#07#) => "BEL",
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               Character'Val (16#08#) => "BS ",
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               Character'Val (16#09#) => "HT ",
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               Character'Val (16#0A#) => "LF ",
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               Character'Val (16#0B#) => "VT ",
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               Character'Val (16#0C#) => "FF ",
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               Character'Val (16#0D#) => "CR ",
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               Character'Val (16#0E#) => "SO ",
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               Character'Val (16#0F#) => "SI ",
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               Character'Val (16#10#) => "DLE",
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               Character'Val (16#11#) => "DC1",
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               Character'Val (16#12#) => "DC2",
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               Character'Val (16#13#) => "DC3",
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               Character'Val (16#14#) => "DC4",
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               Character'Val (16#15#) => "NAK",
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               Character'Val (16#16#) => "SYN",
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               Character'Val (16#17#) => "ETB",
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               Character'Val (16#18#) => "CAN",
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               Character'Val (16#19#) => "EM ",
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               Character'Val (16#1A#) => "SUB",
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               Character'Val (16#1B#) => "ESC",
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               Character'Val (16#1C#) => "FS ",
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               Character'Val (16#1D#) => "GS ",
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               Character'Val (16#1E#) => "RS ",
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               Character'Val (16#1F#) => "US ");
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      subtype C1_Range is Character
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        range Character'Val (16#7F#) .. Character'Val (16#9F#);
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      C1 : constant array (C1_Range) of Cname :=
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              (Character'Val (16#7F#) => "DEL",
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               Character'Val (16#80#) => "res",
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               Character'Val (16#81#) => "res",
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               Character'Val (16#82#) => "BPH",
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               Character'Val (16#83#) => "NBH",
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               Character'Val (16#84#) => "res",
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               Character'Val (16#85#) => "NEL",
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               Character'Val (16#86#) => "SSA",
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               Character'Val (16#87#) => "ESA",
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               Character'Val (16#88#) => "HTS",
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               Character'Val (16#89#) => "HTJ",
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               Character'Val (16#8A#) => "VTS",
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               Character'Val (16#8B#) => "PLD",
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               Character'Val (16#8C#) => "PLU",
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               Character'Val (16#8D#) => "RI ",
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               Character'Val (16#8E#) => "SS2",
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               Character'Val (16#8F#) => "SS3",
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               Character'Val (16#90#) => "DCS",
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               Character'Val (16#91#) => "PU1",
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               Character'Val (16#92#) => "PU2",
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               Character'Val (16#93#) => "STS",
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               Character'Val (16#94#) => "CCH",
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               Character'Val (16#95#) => "MW ",
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               Character'Val (16#96#) => "SPA",
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               Character'Val (16#97#) => "EPA",
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               Character'Val (16#98#) => "SOS",
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               Character'Val (16#99#) => "res",
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               Character'Val (16#9A#) => "SCI",
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               Character'Val (16#9B#) => "CSI",
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               Character'Val (16#9C#) => "ST ",
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               Character'Val (16#9D#) => "OSC",
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               Character'Val (16#9E#) => "PM ",
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               Character'Val (16#9F#) => "APC");
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   begin
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      --  Control characters are represented by their names (RM 3.5(32))
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      if V in C0_Range then
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         S (1 .. 3) := C0 (V);
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         P := (if S (3) = ' ' then 2 else 3);
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      elsif V in C1_Range then
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         S (1 .. 3) := C1 (V);
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         if S (1) /= 'r' then
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            P := (if S (3) = ' ' then 2 else 3);
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         --  Special case, res means RESERVED_nnn where nnn is the three digit
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         --  decimal value corresponding to the code position (more efficient
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         --  to compute than to store!)
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         else
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            declare
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               VP : constant Natural := Character'Pos (V);
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            begin
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               S (1 .. 9) := "RESERVED_";
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               S (10) := Character'Val (48 + VP / 100);
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               S (11) := Character'Val (48 + (VP / 10) mod 10);
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               S (12) := Character'Val (48 + VP mod 10);
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               P := 12;
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            end;
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         end if;
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      --  Normal characters yield the character enclosed in quotes (RM 3.5(32))
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      else
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         S (1) := ''';
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         S (2) := V;
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         S (3) := ''';
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         P := 3;
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      end if;
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   end Image_Character;
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   ------------------------
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   -- Image_Character_05 --
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   ------------------------
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   procedure Image_Character_05
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     (V : 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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   begin
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      if V = Character'Val (16#00AD#) then
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         P := 11;
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         S (1 .. P) := "SOFT_HYPHEN";
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      else
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         Image_Character (V, S, P);
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      end if;
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   end Image_Character_05;
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end System.Img_Char;

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