playing with some styles for obfuscating text

f__k.rb

class NoiseCensor
  def initialize(chars = "&^%@*#")
    @noise = chars.split(//).shuffle.cycle
  end

  def censor(text)
    @noise.take(text.length).join
  end
end

class StarCensor
  def initialize(star = '*')
    @star = star
  end

  def censor(text)
    @star * text.length
  end
end

class JumbleCensor
  def censor(text)
    newtext = text = text.split(//)
    newtext = text.shuffle until newtext != text
    newtext.join
  end
end

class VoidCensor
  def censor(text)
    ''
  end
end

class DevowelizeCensor
  def initialize(base = VoidCensor.new, vowels: "aeiou")
    @base = base
    @regex = /[#{vowels}]/i
  end

  def censor(text)
    text.gsub(@regex) {|char| @base.censor(char) }
  end
end

class InnerCensor
  def initialize(base)
    @base = base
  end

  def censor(text)
    text[0] + @base.censor(text[1..-2]) + text[-1]
  end
end

class TextRedactor
  def initialize(censor, forbidden_words)
    @censor = censor
    @forbidden_words = forbidden_words
  end

  def redact(text)
    text.gsub(/\b(\w+)\b/) {|word|
      if @forbidden_words.include?(word.downcase)
        @censor.censor(word)
      else
        word
      end
    }
  end
end

bad_text = <<EOF
Are you interested in cryptocurrency, diamond hands, or Tesla? Then I've got a great website for you: Reddit.

  - Love, Elon Musk
EOF
bad_words = %w[cryptocurrency tesla reddit elon musk diamond]

[NoiseCensor, StarCensor, JumbleCensor, DevowelizeCensor].each do |censor|
  puts "== #{censor} == "
  puts 
  redactor = TextRedactor.new(InnerCensor.new(censor.new), bad_words)
  puts redactor.redact(bad_text)
  puts
end

output.txt

== NoiseCensor == 

Are you interested in c^*#@&%^*#@&%y, d^*#@&d hands, or T^*#a? Then I've got a great website for you: R^*#@t.

  - Love, E^*n M^*k

== StarCensor == 

Are you interested in c************y, d*****d hands, or T***a? Then I've got a great website for you: R****t.

  - Love, E**n M**k

== JumbleCensor == 

Are you interested in cpunrcytrorecy, dmoiand hands, or Tlesa? Then I've got a great website for you: Rdedit.

  - Love, Eoln Msuk

== DevowelizeCensor == 

Are you interested in cryptcrrncy, dmnd hands, or Tsla? Then I've got a great website for you: Rddt.

  - Love, Eln Msk