/usr/share/ada/adainclude/opentoken/opentoken-recognizer-html_entity.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) 2014 Stephen Leake
-- Copyright (C) 1999 Christoph Karl Walter Grein
--
-- 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.
-------------------------------------------------------------------------------
with Ada.Strings.Maps.Constants;
package body OpenToken.Recognizer.HTML_Entity is
function Get return Instance is
begin
return (Report => True,
State => Escape,
Set => Ada.Strings.Maps.Null_Set);
end Get;
overriding procedure Clear (The_Token : in out Instance) is
begin
The_Token.State := Escape;
The_Token.Set := Ada.Strings.Maps.Null_Set;
end Clear;
overriding procedure Analyze
(The_Token : in out Instance;
Next_Char : in Character;
Verdict : out OpenToken.Recognizer.Analysis_Verdict)
is
use type Ada.Strings.Maps.Character_Set;
begin
case The_Token.State is
when Escape =>
if Next_Char = '&' then
Verdict := So_Far_So_Good;
The_Token.State := First;
else
Verdict := Failed;
The_Token.State := Done;
end if;
when First =>
if Next_Char = '#' then
Verdict := So_Far_So_Good;
The_Token.State := Number;
elsif Ada.Strings.Maps.Is_In
(Element => Next_Char,
Set => Ada.Strings.Maps.Constants.Letter_Set)
then
Verdict := So_Far_So_Good;
The_Token.State := Rest;
The_Token.Set := Ada.Strings.Maps.Constants.Letter_Set;
else
Verdict := Failed;
The_Token.State := Done;
end if;
when Number =>
if The_Token.Set = Ada.Strings.Maps.Null_Set then
if Next_Char = 'x' or Next_Char = 'X' then
Verdict := So_Far_So_Good;
The_Token.Set := Ada.Strings.Maps.Constants.Hexadecimal_Digit_Set;
-- We stay in this state so that we must have at least one digit.
elsif Ada.Strings.Maps.Is_In
(Element => Next_Char,
Set => Ada.Strings.Maps.Constants.Decimal_Digit_Set)
then
Verdict := So_Far_So_Good;
The_Token.State := Rest;
The_Token.Set := Ada.Strings.Maps.Constants.Decimal_Digit_Set;
else
Verdict := Failed;
The_Token.State := Done;
end if;
elsif Ada.Strings.Maps.Is_In (Next_Char, The_Token.Set) then -- this is hexadecimal
Verdict := So_Far_So_Good;
The_Token.State := Rest;
else
Verdict := Failed;
The_Token.State := Done;
end if;
when Rest =>
if Ada.Strings.Maps.Is_In (Next_Char, The_Token.Set) then
Verdict := So_Far_So_Good;
elsif Next_Char = ';' then
Verdict := Matches;
The_Token.State := Done;
else
Verdict := Failed;
The_Token.State := Done;
end if;
when Done =>
Verdict := Failed;
end case;
end Analyze;
end OpenToken.Recognizer.HTML_Entity;
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