Schwartzian transform 
my @new_list = map { $_->[0] }
                 sort { $a->[1] cmp $b->[1] }
                   map { /(a|b)(\d+)_(\d+)\[(\d+)\]/ or die "Can't par
+se $_";
                         [$_, sprintf "$1%05d%05d%05d", $2, $3, $4]; 
                       } @split_list;

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Make a sortable pair for each element of the array. Concatenate first letter with all the numbers in an element. Expand every number to 5 digits with leading zeros. Then sort the pairs alphabetically by second element and take original elements from sorted pairs

In reply to Re: Sort problems by ccn
in thread Sort problems by erez_ez

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