gistfile1.rb

def password_strength(value)
  strength = 0
  
  case value.size
  when 5..7
    strength += 6
  when 8..9
    strength += 12
  else
    strength += 18 if value.size > 10
  end
  
  strength += 1 if value =~ /[a-z]/
  strength += 5 if value =~ /[A-Z]/
  strength += 5 if value =~ /\d+/
  strength += 7 if value =~ /(.*[0-9].*[0-9].*[0-9])/
  strength += 5 if value =~ /.[!,@,#,$,%,^,&,*,?,_,~]/
  strength += 7 if value =~ /(.*[!,@,#,$,%,^,&,*,?,_,~].*[!,@,#,$,%,^,&,*,?,_,~])/
  strength += 2 if value =~ /([a-z].*[A-Z])|([A-Z].*[a-z])/
  strength += 3 if value =~ /([a-zA-Z])/ && value =~ /([0-9])/
  strength += 3 if value =~ /([a-zA-Z0-9].*[!,@,#,$,%,^,&,*,?,_,~])|([!,@,#,$,%,^,&,*,?,_,~].*[a-zA-Z0-9])/
  
  return strength
end