--- test1 ---
   5  5 
  10  10
  3D  3D
--- test2 ---
x 1
y 1
1 1
100 1
--- test3 ---
x 1
1 1
100 1
--- test4 ---
0 1
x 1
1 1
100 1
--- test5 ---
 1
0 1
y 1
--- test6 ---
"1"
"2"
"3 "
"4"
--- test7 ---
--asc ind str--
| 3| 3
| 4 | 4 
|0|0
|1|1
|2|2
|3|3
|3D|3D
|4|4
|5|5
|D3|D3
--asc ind num--
|0|0
|D3|D3
|1|1
|2|2
| 3| 3
|3|3
|3D|3D
| 4 | 4 
|4|4
|5|5
--asc val num--
gawk: arraysort.awk:79: warning: `PROCINFO["sorted_in"]': sorting by value can't be forced to use numeric comparison
|4|4
|5|5
|D3|D3
|3D|3D
| 3| 3
|0|0
|1|1
|2|2
|3|3
| 4 | 4