class Sass::SCSS::StaticParser

def selector_comma_sequence
  sel = selector
  return unless sel
  selectors = [sel]
  ws = ''
  while tok(/,/)
    ws << str {ss}
    next unless (sel = selector)
    selectors << sel
    if ws.include?("\n")
      selectors[-1] = Selector::Sequence.new(["\n"] + selectors.last.members)
    end
    ws = ''
  end
  Selector::CommaSequence.new(selectors)
end