clear_lowest_bit
block.dots = clear_lowest_bit(block.dots);
block.dots = clear_lowest_bit(block.dots);
block.dots = clear_lowest_bit(block.dots);
block.dots = clear_lowest_bit(block.dots);
fields = clear_lowest_bit(fields);
delimiters = clear_lowest_bit(delimiters);
fields = clear_lowest_bit(fields);
delimiters = clear_lowest_bit(delimiters);
fields = clear_lowest_bit(fields);
delimiters = clear_lowest_bit(delimiters);