method_missing in ruby

gistfile1.txt

module BADASS
  class Config
    def initialize(config_file)
      @config_file = config_file
    end

    def method_missing(method, *args)
      if method.to_s =~ /[a-zA-Z0-9\-_]=$/
        puts method
        puts args[0]
      elsif method.to_s =~ /[a-zA-Z0-9\-_]/
        puts method
      else
        super
      end
    end
  end
end

myclass.username        # returns from self.read(username)
myclass.username='bob'  # calls self.write(username, 'bob')

myclass.username = 'bob' # still works! (Ruby ignores whitespace)