"%" L F(tk::Percent, hi::Operator);
"%=" L F(tk::PercentEqual, hi::Operator);
"." L F(tk::Period, hi::Operator);
+"?." L F(tk::QuestionPeriod, hi::Operator);
"|" L F(tk::Pipe, hi::Operator);
"|=" L F(tk::PipeEqual, hi::Operator);
"||" L F(tk::PipePipe, hi::Operator);