class File
def read_backwards
        self.pos = self.lstat.size-1
        curr_str = ''
        while self.pos > 0
                c = self.readchar.chr
                if c == "\n" || c == "\r"
                        yield curr_str.reverse if  ! curr_str.nil?
                        curr_str = ''
                else
                        curr_str = curr_str + c
                end
                self.pos -= 2
        end
end
end

f = File.open('somefile', 'r')
f.read_backwards {|line|
        next if line.empty?
        puts line
}