/usr/share/ada/adainclude/opentoken/opentoken-recognizer-identifier.ads is in libopentoken5-dev 6.0b-4.
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--
-- Copyright (C) 2012 Stephen Leake
-- Copyright (C) 1999 FlightSafety International and Ted Dennison
--
-- 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 software was originally developed by the following company, and was
-- released as open-source software as a service to the community:
--
-- FlightSafety International Simulation Systems Division
-- Broken Arrow, OK USA 918-259-4000
--
-------------------------------------------------------------------------------
-----------------------------------------------------------------------------
-- This package implements a token recognizer for an identifier. An
-- identifier is defined as a string starting with a character in a
-- given set of start characters and thereafter consisting of a
-- sequence of characters in the set of body characters. Single
-- underscores may be allowed inside identifiers. When the underscore
-- is in the set of characters, there is no restriction on its use.
--
-- If you use an identifier token with keyword tokens, they will
-- *both* typically match. So be sure to list the keyword tokens in
-- your syntax first, so that the keywords will take precedence.
-----------------------------------------------------------------------------
with Ada.Strings.Maps;
package OpenToken.Recognizer.Identifier is
type Instance is new OpenToken.Recognizer.Instance with private;
----------------------------------------------------------------------------
-- This procedure will be called to create an Identifier token.
--
-- Underscore ('_') is treated as a separator (as in Ada); only
-- set Has_Separator false when your identifier allows multiple
-- underscores in a row.
--------------------------------------------------------------------------
function Get
(Start_Chars : in Ada.Strings.Maps.Character_Set;
Body_Chars : in Ada.Strings.Maps.Character_Set;
Has_Separator : in Boolean := True)
return Instance;
private
type State_ID is (First_Char, Text, Underscore, Done);
type Instance is new OpenToken.Recognizer.Instance with record
Start_Chars : Ada.Strings.Maps.Character_Set;
Body_Chars : Ada.Strings.Maps.Character_Set;
Has_Separator : Boolean;
-- The finite state machine state
State : State_ID := First_Char;
end record;
overriding procedure Clear (The_Token : in out Instance);
overriding procedure Analyze
(The_Token : in out Instance;
Next_Char : in Character;
Verdict : out Analysis_Verdict);
end OpenToken.Recognizer.Identifier;
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