Class: Womanizer

Inherits:
Object
  • Object
show all
Defined in:
lib/womanizer.rb

Constant Summary collapse

VERSION = 
'0.1.1'

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(*words) ⇒ Womanizer

Returns a new instance of Womanizer.

Raises:

  • (ArgumentError) 


11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
 
# File 'lib/womanizer.rb', line 11

def initialize(*words)
  words = ['morewoman', 'morewomen'] if words.empty?
  words = words.map(&:downcase).uniq

  raise ArgumentError, 'needs words with length of at least 8' if words.any? { |w| w.length < 8 }

  @enc = []
  @dec = {}

  chars = 0.upto(255).each

  begin
    words.each do |word|
      l = word.length
      f = "%0#{l}d"
      0.upto(2**l) do |i|
        o = chars.next
        b = (f % i.to_s(2)).chars.map(&:to_i)
        t = word.chars.zip(b).map do |c, u|
          if u.zero?
            c
          else
            c.upcase
          end
        end.join
        @enc[o] = t
        @dec[t] = o

        debug { "#{o} => #{t}" }
      end
    end
  rescue StopIteration
    #done
  end
end

Class Method Details

.ok!(*a) ⇒ Object 



6
7
8
9
 
# File 'lib/womanizer.rb', line 6

def self.ok!(*a)
  $womanizer = Womanizer.new(*a)
  $womanizer.define!
end

Instance Method Details

#decode(encoded) ⇒ Object 



50
51
52
53
 
# File 'lib/womanizer.rb', line 50

def decode(encoded)
  encoded.split(/\s+/).map { |t| @dec.fetch(t) }.pack('C*').
    force_encoding(Encoding.default_external)
end

#define! ⇒ Object 



55
56
57
58
59
60
 
# File 'lib/womanizer.rb', line 55

def define!
  @dec.each do |t,c|
    Kernel.send(:define_method, t) {|r=''| [c].pack('C')+r }
  end
  Kernel.send(:alias_method, 'ok', 'eval')
end

#encode(source) ⇒ Object 



46
47
48
 
# File 'lib/womanizer.rb', line 46

def encode(source)
  source.each_byte.map { |b| @enc[b] }.join(' ')
end