1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
|
-------------------------------------------------------------------------------
--
-- Copyright (C) 2002, 2003, 2009 Stephen Leake
--
-- This file is part of the OpenToken package.
--
-- The OpenToken package is free software; you can redistribute it and/or
-- modify it under the terms of the GNU General Public License as published
-- by the Free Software Foundation; either version 3, or (at your option)
-- any later version. The OpenToken package 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 General Public License for more details. You should have received
-- a copy of the GNU General Public License distributed with the OpenToken
-- package; see file GPL.txt. If not, write to the Free Software Foundation,
-- 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
--
-- As a special exception, if other files instantiate generics from
-- this unit, or you link this unit with other files to produce an
-- executable, this unit does not by itself cause the resulting
-- executable to be covered by the GNU General Public License. This
-- exception does not however invalidate any other reasons why the
-- executable file might be covered by the GNU Public License.
--
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
-- This package declares a type for designating a real. Useful as
-- a literal in LR parsers, or an integer value in recursive descent
-- parsers.
-------------------------------------------------------------------------------
generic
type Real_Type is digits <>;
package OpenToken.Token.Enumerated.Real is
type Instance is new OpenToken.Token.Enumerated.Instance with record
Value : Real_Type;
end record;
subtype Class is Instance'Class;
type Handle is access all Class;
----------------------------------------------------------------------------
-- Get a real token
----------------------------------------------------------------------------
function Get
(ID : in Token_ID;
Value : in Real_Type := 0.0;
Name : in String := "";
Build : in Action := null)
return Instance'Class;
overriding procedure Create
(Lexeme : in String;
Recognizer : in Recognizer_Handle;
New_Token : in out Instance);
overriding procedure Copy
(To : in out Instance;
From : in Token.Class);
end OpenToken.Token.Enumerated.Real;
|
