1 These words 2 are separated 3 by newlines 4 and sometimes 5 spaces 6 too. 7 The next three lines are numbers with only intervening newlines 8 01123 9 581321 10 34 11 And now for some blank lines.... 12 13 14 Finally, we directly modify yylineno, but then change it back afterwards 15 (see scanner.l): 16 17 yylineno++ 18 19 yylineno-- 20