1<H1> test_if1 </H1>
2
3
4 VAR2 defined (TRUE)
5 (if test 2)
6
7 VAR1 defined (if test 3 level 1)
8 VAR2 defined (if test 3 level 2)
9 VAR2 defined (if test 3 level 3)
10
11
12
13------------------ <hr>
14  defined (TRUE)
15 (if test 1)
16
17
18
19 VAR1 defined (if test 3 level 1)
20 VAR2 defined (if test 3 level 2)
21 VAR2 defined (if test 3 level 3)
22  defined (if test 3 level 4)
23
24
25
26