def simple_selectors(selector)
      selector = parse_compound_selector(selector, :selector)
      list(selector.members.map {|simple| unquoted_string(simple.to_s)}, :comma)
    end
def simple_selectors(selector)
      selector = parse_compound_selector(selector, :selector)
      list(selector.members.map {|simple| unquoted_string(simple.to_s)}, :comma)
    end
Returns the [simple
 selectors](http://dev.w3.org/csswg/selectors4/#simple) that
 comprise the compound selector `$selector`.

 Note that `$selector` **must be** a [compound
 selector](http://dev.w3.org/csswg/selectors4/#compound). That
 means it cannot contain commas or spaces. It also means that
 unlike other selector functions, this takes only strings, not
 lists.

 @example
   simple-selectors(".foo.bar") => ".foo", ".bar"
   simple-selectors(".foo.bar.baz") => ".foo", ".bar", ".baz"

 @overload simple_selectors($selector)
   @param $selector [Sass::Script::Value::String]
     The compound selector whose simple selectors will be extracted.
   @return [Sass::Script::Value::List]
     A list of simple selectors in the compound selector.