gcc/ada/a-wtenio.adb

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT RUNTIME COMPONENTS                          --
   4 --                                                                          --
   5 --       A D A . W I D E _ T E X T _ I O . E N U M E R A T I O N _ I O      --
   6 --                                                                          --
   7 --                                 B o d y                                  --
   8 --                                                                          --
   9 --          Copyright (C) 1992-2000, Free Software Foundation, Inc.         --
  10 --                                                                          --
  11 -- GNAT is free software;  you can  redistribute it  and/or modify it under --
  12 -- terms of the  GNU General Public License as published  by the Free Soft- --
  13 -- ware  Foundation;  either version 2,  or (at your option) any later ver- --
  14 -- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
  15 -- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
  16 -- or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License --
  17 -- for  more details.  You should have  received  a copy of the GNU General --
  18 -- Public License  distributed with GNAT;  see file COPYING.  If not, write --
  19 -- to  the Free Software Foundation,  59 Temple Place - Suite 330,  Boston, --
  20 -- MA 02111-1307, USA.                                                      --
  21 --                                                                          --
  22 -- As a special exception,  if other files  instantiate  generics from this --
  23 -- unit, or you link  this unit with other files  to produce an executable, --
  24 -- this  unit  does not  by itself cause  the resulting  executable  to  be --
  25 -- covered  by the  GNU  General  Public  License.  This exception does not --
  26 -- however invalidate  any other reasons why  the executable file  might be --
  27 -- covered by the  GNU Public License.                                      --
  28 --                                                                          --
  29 -- GNAT was originally developed  by the GNAT team at  New York University. --
  30 -- Extensive contributions were provided by Ada Core Technologies Inc.      --
  31 --                                                                          --
  32 ------------------------------------------------------------------------------
  33
  34 with Ada.Wide_Text_IO.Enumeration_Aux;
  35
  36 package body Ada.Wide_Text_IO.Enumeration_IO is
  37
  38    package Aux renames Ada.Wide_Text_IO.Enumeration_Aux;
  39
  40    ---------
  41    -- Get --
  42    ---------
  43
  44    procedure Get (File : in File_Type; Item : out Enum) is
  45       Buf    : Wide_String (1 .. Enum'Width);
  46       Buflen : Natural;
  47
  48    begin
  49       Aux.Get_Enum_Lit (File, Buf, Buflen);
  50       Item := Enum'Wide_Value (Buf (1 .. Buflen));
  51
  52    exception
  53       when Constraint_Error => raise Data_Error;
  54    end Get;
  55
  56    procedure Get (Item : out Enum) is
  57    begin
  58       Get (Current_Input, Item);
  59    end Get;
  60
  61    procedure Get
  62      (From : in Wide_String;
  63       Item : out Enum;
  64       Last : out Positive)
  65    is
  66       Start : Natural;
  67
  68    begin
  69       Aux.Scan_Enum_Lit (From, Start, Last);
  70       Item := Enum'Wide_Value (From (Start .. Last));
  71
  72    exception
  73       when Constraint_Error => raise Data_Error;
  74    end Get;
  75
  76    ---------
  77    -- Put --
  78    ---------
  79
  80    procedure Put
  81      (File  : in File_Type;
  82       Item  : in Enum;
  83       Width : in Field := Default_Width;
  84       Set   : in Type_Set := Default_Setting)
  85    is
  86       Image : constant Wide_String := Enum'Wide_Image (Item);
  87
  88    begin
  89       Aux.Put (File, Image, Width, Set);
  90    end Put;
  91
  92    procedure Put
  93      (Item  : in Enum;
  94       Width : in Field := Default_Width;
  95       Set   : in Type_Set := Default_Setting)
  96    is
  97    begin
  98       Put (Current_Output, Item, Width, Set);
  99    end Put;
 100
 101    procedure Put
 102      (To   : out Wide_String;
 103       Item : in Enum;
 104       Set  : in Type_Set := Default_Setting)
 105    is
 106       Image : constant Wide_String := Enum'Wide_Image (Item);
 107
 108    begin
 109       Aux.Puts (To, Image, Set);
 110    end Put;
 111
 112 end Ada.Wide_Text_IO.Enumeration_IO;