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实战Linux编程的原代码,希望对学驱动的人能有所帮助

1   FF-Test: FF's at Start of File             V
2   Options -b -3 / -a -3 / ...
3   --------------------------------------------
4 3456789 123456789 123456789 123456789 12345678
5   3 Columns downwards ..., <= 5 lines per page
6   FF-Arangements: Empty Pages at start
7   \ftext; \f\ntext;
8   \f\ftext; \f\f\ntext; \f\n\ftext; \f\n\f\n;
9 3456789 123456789 123456789  
10  zzzzzzzzzzzzzzzzzzzzzzzzzz123456789
1                                       12345678
2                                       12345678
3 line truncation before FF; r_r_o_l-test:
14 456789 123456789 123456789 123456789

15 xyzxyzxyz XYZXYZXYZ abcabcab
16 456789 123456789 xyzxyzxyz XYZXYZXYZ
7                                       12345678
8                                       12345678
9 3456789 ab
20 DEFGHI 123
1                                       12345678
2                                       12345678
3                                       12345678
4                                       12345678
5                                       12345678
6                                       12345678
27 no truncation before FF; (r_l-test):
28 no trunc

29 xyzxyzxyz XYZXYZXYZ abcabcab
30 456789 123456789 xyzxyzxyz XYZXYZXYZ
1                                       12345678
2 3456789 abcdefghi
3                                       12345678