Genius legacy code

more_string_extensions.rb

class String
  def replace_line_break
    return String.new if self.nil?
    return_str = String.new
    return_str = self.gsub(/[\x0D|\x0A]/,'<br />')
    return return_str
  end
end

the_greatest_module_ever.rb

module SalaryFormatting
  def self.included(base)
    base.module_eval do
      extend ClassMethods
    end
  end

  def formatted_salary
    salary && self.class.pad_salary(self.salary)
  end

  module ClassMethods
    def pad_salary(salary)
      stripped = attr.to_s.gsub(/\D/, "")
      ( "%8d" % stripped ).gsub(' ', '0')
    end
  end
end