> Is there a way that the "empty fields" , as i call them can be initialized to undef.
no, as I told you "it has to be explicitly inserted".
[1,2,3, undef, 5,6,7, undef ,9 ]
the only way to facilitate things is to define your own input string syntax:
Like a sub row() which returns the above from a "simplified" list row(qw(1 2 3 . 5 6 7 . 9))
Or alternatively to parse() a multiline-string representing a matrix, like
$AoA = parse <<'__matrix__';
1 2 3 4 5 6 7 8 9
1 2 3 . 5 6 7 . 9
1 2 3 . 5 6 7 . 9
__matrix__
YMMV according to your real problem.
> In my opinion this should be the case.
It's a feature of Perl, other stuff would break in this "case", sorry!
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