gistfile1.rb

class String
  
  def to_leet(random=false)
    leet_alphabet = { :a => %w{ @ 4 /\ /-\ ^ aye ∂ ci λ Z},
    :b => %w{ ß 6 8 13 I3 |3 P> |: !3 (3 /3 )3 ]3},
    :c => %w{ ( ¢ < ©},
    :d => %w{ [) |) |o ∂ ]) I> |> T) 0 ð cl},
    :e => %w{ 3 & € £ ë [- |=-},
    :f => %w{ |= ]= ph \} (= I=},
    :g => %w{ 6 & (_+ 9 C- gee (γ, (_- cj},
    :h => %w{ |-| /-/ [-] ]-[ )-( (-) :-: |~| ]~[ },
    :i => %w{ : ¡ 1 ! | eye 3y3 ai ][  ]},
    :j => %w{ ʝ _| _/ ] ¿ </ (/},
    :k => ['ɮ','|X', '|<', '|{'],
    :l => %w{ 1 £ 1_ | |_ lJ},
    :m => %w{ ^^ |v| em ]V[ (T) [V] nn //\\//\\ |\/| /\/\ (u) (V) (\/) /|\ /|/| //. .\\ /^^\ /V\ []\/[] |^^| },
    :n => ['₪','|\|','^/','/\/','[\]','<\>','{\}','[]\\', '//','[]','/V','[]\[]',']\[','~'],
    :o => %w{ 0 () oh [] p ¤ Ω},
    :p => %w{ ¶ |* |o |º |^(o) |> |" 9 []D |̊ |7 q þ ℗},
    :q => %w{ (_,) ()_ 0_ <| 9 O,},
    :r => %w{ Я 2 12 |? /2 I2 |^ |~ lz ® |2 [z |` l2 |2 ʁ},
    :s => %w{ $ 5 z § ehs es},
    :t => %w{ 7 † + -|- 1 '|'},
    :u => %w{ µ M |_| Y3W L|},
    :v => %w{ √ \/ \\//},
    :w => %w{ Ш \/\/ vv '// \\' \^/ (n) \V/ \X/ \|/ \_|_/ \\//\\// \_:_/ (/\) ]I[ LL1 UU ɰ},
    :x => ['%','Ж','><','\}{','ecks',')(','ex'],
    :y => %w{Ψ `/ `( -/ φ λ Ч ¥},
    :z => %w{2 ~/_ % >_ ʒ 7_} }
    
    self.split("").inject("") do |s, ch|
      if ch.match(/\w/)
        random ? s << leet_alphabet[ch.to_sym][rand(leet_alphabet[ch.to_sym].size)] : s << leet_alphabet[ch.to_sym][0]
      else
        s << ch
      end
    end
  end

end