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