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1996-09-28
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105 lines
------------------------------------------------------------------------------
-- --
-- GNAT RUNTIME COMPONENTS --
-- --
-- A D A . T E X T _ I O . E N U M E R A T I O N _ I O --
-- --
-- B o d y --
-- --
-- $Revision: 1.3 $ --
-- --
-- Copyright (c) 1992,1993,1994, 1995 NYU, All Rights Reserved --
-- --
-- The GNAT library is free software; you can redistribute it and/or modify --
-- it under terms of the GNU Library General Public License as published by --
-- the Free Software Foundation; either version 2, or (at your option) any --
-- later version. The GNAT library is distributed in the hope that it will --
-- be useful, but WITHOUT ANY WARRANTY; without even the implied warranty --
-- of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- Library General Public License for more details. You should have --
-- received a copy of the GNU Library General Public License along with --
-- the GNAT library; see the file COPYING.LIB. If not, write to the Free --
-- Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. --
-- --
------------------------------------------------------------------------------
with Ada.Text_IO.Enumeration_Aux;
package body Ada.Text_IO.Enumeration_IO is
package Aux renames Ada.Text_IO.Enumeration_Aux;
---------
-- Get --
---------
procedure Get (File : in File_Type; Item : out Enum) is
Buf : String (1 .. Enum'Width);
Buflen : Natural;
begin
Aux.Get_Enum_Lit (File, Buf, Buflen);
Item := Enum'Value (Buf (1 .. Buflen));
exception
when Constraint_Error => raise Data_Error;
end Get;
procedure Get (Item : out Enum) is
begin
Get (Current_In, Item);
end Get;
procedure Get
(From : in String;
Item : out Enum;
Last : out positive)
is
Start : Natural;
begin
Aux.Scan_Enum_Lit (From, Start, Last);
Item := Enum'Value (From (Start .. Last));
exception
when Constraint_Error => raise Data_Error;
end Get;
---------
-- Put --
---------
procedure Put
(File : in File_Type;
Item : in Enum;
Width : in Field := Default_Width;
Set : in Type_Set := Default_Setting)
is
Image : constant String := Enum'Image (Item);
begin
Aux.Put (File, Image, Width, Set);
end Put;
procedure Put
(Item : in Enum;
Width : in Field := Default_Width;
Set : in Type_Set := Default_Setting)
is
begin
Put (Current_Out, Item, Width, Set);
end Put;
procedure Put
(To : out String;
Item : in Enum;
Set : in Type_Set := Default_Setting)
is
Image : constant String := Enum'Image (Item);
begin
Aux.Puts (To, Image, Set);
end Put;
end Ada.Text_IO.Enumeration_IO;