("[" @open "]" @close)("{" @open "}" @close)("\"" @open "\"" @close)("do" @open "end" @close) (block_parameters "|" @open "|" @close)(interpolation "#{" @open "}" @close) (if "if" @open "end" @close)(unless "unless" @open "end" @close)(begin "begin" @open "end" @close)(module "module" @open "end" @close)(_ . "def" @open "end" @close)(_ . "class" @open "end" @close)