note
	description: "r_defs.h"
	license: "[
				Copyright (C) 1993-1996 by id Software, Inc.
				Copyright (C) 2021 Ilgiz Mustafin
		
				This program 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 2 of the License, or
				(at your option) any later version.
		
				This program 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 along
				with this program; if not, write to the Free Software Foundation, Inc.,
				51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
	]"

class 
	POST_T

create 
	from_pointer

feature 

	topdelta: NATURAL_8

	length: NATURAL_8

	body: ARRAY [NATURAL_8]
	
feature 

	from_pointer (p: MANAGED_POINTER; offset: INTEGER_32)
		require
				offset >= 0
		do
			topdelta := p.read_natural_8_le (offset)
			if not is_after then
				length := p.read_natural_8_le (offset + 1)
				body := p.read_array (offset + 3, length.to_integer_32)
			else
				length := 0
				create body.make_empty
			end
			body.rebase (0)
		ensure
				body.lower = 0
		end
	
feature 

	is_after: BOOLEAN
		do
			Result := topdelta = 255
		end
	
end -- class POST_T

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