I also tried to adapt something I found on this forum, but I don't fully understand it.

my @sorted_matrix = grep {s/(^|\D)0+(\d)/$1$2/g,1} sort {$a->[0] cmp $b->[0]} grep {s/(\d+)/sprintf"%06.6d",$1/ge,1} @matrix;

It zero-pads the numbers for the purposes of sorting and then removes the padding once the sort is complete. Sounds like a sensible approach.

In reply to Re: natural sort on array of arrays by hippo
in thread natural sort on array of arrays by shamat

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