/usr/share/ada/adainclude/opentoken/opentoken-recognizer-keyword.adb is in libopentoken5-dev 6.0b-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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--
-- Copyright (C) 1999, 2014 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
--
-------------------------------------------------------------------------------
with Ada.Characters.Handling;
-------------------------------------------------------------------------------
-- This package implements a token recognizer for an End of File designator.
-------------------------------------------------------------------------------
package body OpenToken.Recognizer.Keyword is
overriding procedure Clear (The_Token : in out Instance) is
begin
The_Token.State := Text;
The_Token.Substate := 1;
end Clear;
overriding procedure Analyze
(The_Token : in out Instance;
Next_Char : in Character;
Verdict : out Analysis_Verdict)
is
Converted_Char : Character;
begin
-- Convert the character to lower case if we aren't case sensitive
if The_Token.Case_Sensitive then
Converted_Char := Next_Char;
else
Converted_Char := Ada.Characters.Handling.To_Lower (Next_Char);
end if;
case The_Token.State is
when Text =>
-- if the characters matches the current token character...
if Converted_Char = Buffers.Element (Source => The_Token.Literal,
Index => The_Token.Substate)
then
-- if its the last character, call it a match, otherwise
-- so far so good.
if The_Token.Substate = Buffers.Length (The_Token.Literal) then
Verdict := Matches;
The_Token.State := Done;
else
Verdict := So_Far_So_Good;
The_Token.Substate := The_Token.Substate + 1;
end if;
-- ...otherwise, it doesn't match
else
Verdict := Failed;
The_Token.State := Done;
end if;
when Done =>
-- We shouldn't get called from here.
Verdict := Failed;
end case;
end Analyze;
function Get
(Keyword_Literal : in String;
Case_Sensitive : in Boolean := Default_Case_Sensitivity;
Reportable : in Boolean := True)
return Instance
is
New_Token : Instance;
begin
New_Token.Case_Sensitive := Case_Sensitive;
New_Token.Report := Reportable;
if Case_Sensitive then
New_Token.Literal := Buffers.To_Bounded_String (Keyword_Literal);
else
New_Token.Literal := Buffers.To_Bounded_String
(Ada.Characters.Handling.To_Lower (Keyword_Literal));
end if;
return New_Token;
end Get;
end OpenToken.Recognizer.Keyword;
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