104 advance (bool f)  in advance()  function
115   advance (true);  in unary_advance()
215       advance (true);  in term()
227       advance (true);  in term()
245       advance (false);  in term()
260       advance (false);  in term()
275     advance (false);  in binary_operator()
281       advance (false);  in binary_operator()
543       advance (false);  in and()
562       advance (false);  in or()
592       advance (false);  in two_arguments()
615       advance (true);  in three_arguments()
620       advance (false);  in three_arguments()
622       advance (false);  in three_arguments()
655             advance (true);  in posixtest()
661             advance (false);  in posixtest()
663             advance (false);  in posixtest()