def normalize(form=ActiveSupport::Multibyte.default_normalization_form)
codepoints = self.class.u_unpack(@wrapped_string)
chars(case form
when :d
self.class.reorder_characters(self.class.decompose_codepoints(:canonical, codepoints))
when :c
self.class.compose_codepoints(self.class.reorder_characters(self.class.decompose_codepoints(:canonical, codepoints)))
when :kd
self.class.reorder_characters(self.class.decompose_codepoints(:compatability, codepoints))
when :kc
self.class.compose_codepoints(self.class.reorder_characters(self.class.decompose_codepoints(:compatability, codepoints)))
else
raise ArgumentError, "#{form} is not a valid normalization variant", caller
end.pack('U*'))
end