Class: RubyQuiz1::CharacterGroup

Inherits:
Object
  • Object
show all
Defined in:
lib/ruby_quiz_1/character_group.rb

Instance Method Summary collapse

Constructor Details

#initialize(value, solitaire = nil) ⇒ CharacterGroup

Returns a new instance of CharacterGroup.

Raises:

  • (ArgumentError) 


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# File 'lib/ruby_quiz_1/character_group.rb', line 4

def initialize(value, solitaire=nil)
  raise ArgumentError unless String(value) =~ /\A[A-Z]{1,5}\z/
  @value = String(value)
  @keystream = generate_keystream(solitaire) if solitaire
end

Instance Method Details

#==(other) ⇒ Object 



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# File 'lib/ruby_quiz_1/character_group.rb', line 30

def ==(other)
  characters == other.characters
end

#characters ⇒ Object 



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# File 'lib/ruby_quiz_1/character_group.rb', line 10

def characters
  pad(value)
end

#decrypted ⇒ Object 



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# File 'lib/ruby_quiz_1/character_group.rb', line 25

def decrypted
  return unless keystream
  convert_to_characters(decrypted_numbers)
end

#encrypted ⇒ Object 



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# File 'lib/ruby_quiz_1/character_group.rb', line 20

def encrypted
  return unless keystream
  convert_to_characters(encrypted_numbers)
end

#numbers ⇒ Object 



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# File 'lib/ruby_quiz_1/character_group.rb', line 14

def numbers
  @numbers ||= characters.chars.collect do |c|
    ("A".."Z").to_a.index(c) + 1
  end
end