1These words
2are separated
3by newlines
4and sometimes
5    spaces  
6too.
7The next three lines are numbers with only intervening newlines
801123
9581321
1034
11And now for some blank lines....
12
13
14Finally, we directly modify yylineno, but then change it back afterwards
15(see scanner.l):
16
17yylineno++
18
19yylineno--
20