class RDoc::Markdown

def _ReferenceLinkSingle
  _save = self.pos
  while true # sequence
    _tmp = apply(:_Label)
    content = @result
    unless _tmp
      self.pos = _save
      break
    end
    _text_start = self.pos
    _save1 = self.pos
    _save2 = self.pos
    while true # sequence
      _tmp = apply(:_Spnl)
      unless _tmp
        self.pos = _save2
        break
      end
      _tmp = match_string("[]")
      unless _tmp
        self.pos = _save2
      end
      break
    end # end sequence
    unless _tmp
      _tmp = true
      self.pos = _save1
    end
    if _tmp
      text = get_text(_text_start)
    end
    unless _tmp
      self.pos = _save
      break
    end
    @result = begin;  link_to content, content, text ; end
    _tmp = true
    unless _tmp
      self.pos = _save
    end
    break
  end # end sequence
  set_failed_rule :_ReferenceLinkSingle unless _tmp
  return _tmp
end