This one's got me a bit stumped:
I'd like to do something like the following:
while(<>) {
($a, $b, $c, $d) =~ /(...)(...)(...)(...)/;
$hash{$a}{$b}{$c}{$d}++;
}
basically, splitting the line into 3 character chunks and
placing them into a multi dimensional hash... however the line could be of arbitrary length, and I'd want to capture all the 3 character sequences (thus the hash could look like: $hash{$a}{$b}{$c}{$d}{$e}{$f}++ or just $hash{$a}++ )
Conversely, how would I read such a datastructure? i.e.
if I know the depth of the hash, I can write:
foreach $key (keys %hash) {
foreach $key1 (keys %{$hash{$key}}) {
foreach $key2 (keys %{$hash{$key}{$key1}}) {
# do something
}
}
}
But I do not know the depth of the hash.
thanks.
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