/usr/share/ada/adainclude/opentoken/opentoken-token-enumerated-string.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) 2003, 2008, 2009, 2014 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.
-------------------------------------------------------------------------------
package body OpenToken.Token.Enumerated.String is
--------------------------------------------------------------------------
-- Return the value of Item with quotes removed
-- (assumes Ada syntax).
--------------------------------------------------------------------------
function Unquote (Item : in Standard.String) return Standard.String
is
use Buffers;
Item_Next : Natural := Item'First;
Result : Standard.String (1 .. Item'Length);
Result_Last : Natural := Result'First - 1;
C : Character;
begin
loop
exit when Item_Next > Item'Last;
C := Item (Item_Next);
if C = '"' then
-- First " starts string, last " ends it.
-- Doubled "" before last is an embedded "
exit when Item_Next = Item'Last;
Item_Next := Item_Next + 1;
C := Item (Item_Next);
-- This might be the last "
exit when C = '"' and Item_Next = Item'Last;
end if;
Result_Last := Result_Last + 1;
Result (Result_Last) := C;
Item_Next := Item_Next + 1;
end loop;
return Result (1 .. Result_Last);
end Unquote;
function Get
(ID : in Token_ID;
Value : in Standard.String := "";
Name : in Standard.String := "";
Build : in Action := null)
return Instance'Class
is begin
if Name = "" then
return Instance'Class (Instance'(null, ID, Build, Buffers.To_Bounded_String (Value)));
else
return Instance'Class (Instance'(new Standard.String'(Name), ID, Build, Buffers.To_Bounded_String (Value)));
end if;
end Get;
overriding procedure Create
(Lexeme : in Standard.String;
Bounds : in Buffer_Range;
Recognizer : in Recognizer_Handle;
New_Token : in out Instance)
is
pragma Unreferenced (Bounds);
pragma Unreferenced (Recognizer);
begin
New_Token.Value := Buffers.To_Bounded_String (Unquote (Lexeme));
end Create;
overriding procedure Copy
(To : in out Instance;
From : in Token.Class)
is begin
To.Value := Instance (From).Value;
end Copy;
end OpenToken.Token.Enumerated.String;
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