> Are you sure it's a HashOfArrays and not an ArrayOfHashes?
>
> #HAO
>
> $data{$key} = ['Jenda', 'Krynicky', '[EMAIL PROTECTED]', ...]
>
> # AOH
> $data[$i] = {fname => 'Jenda', lname => 'Krynicky', email =>
> '[EMAIL PROTECTED]', ...}
>
What I have now is something like this :
@ID = qw (Foo Bar Blaz Bob);
@Country = qw (UK US HK HK);
@Gender = qw (F M M F);
%table{ID} = (ID => \@ID, Country => \@Country, Gender => \@Gender);
So I got $table{ID}[1] as 'Bar", and I think this is HOA.
Note : The above array is always same in dimension, and
the reading way is Foo's location is in UK and gender is F.
This is fixed, so I can't modify anything on it.
But what I going to do is like this :
my %newTable = SortTable ( TABLE => \%table, Seq => "Gender=A, Country=D, ID=A");
my %newTable = SortTable ( TABLE => \%table, Seq => "ID=A, Gender=A, Country=A");
# where =A =D is in terms of acending and decending order.
That would really complex if have to write one, so I am looking if there is an existed
module for this.
> Keep in mind that hash is not ordered!
As illustrated, the order is always dynamic by different Seq,
so that's not important here.
> If you want to sort the AOH using a field you can do it like this:
>
> @sorted_data = sort {$a->{$key} cmp $b->{$key}} @data;
> #ascending
but how about HOA ?
> where $key is the name of the field you want to use.
> If you want to sort using several fields you can do it like this:
>
> @sorted_data
> = sort {$a->{$key1} cmp $b->{$key1} or $a->{$key2} cmp $b->{$key2}}
> @data;
Poor me :-<
I don't really understand the meaning of "or $a->{$key2} com $b->{$key2}}" here...
Would any hints given here ?
Rgds,
Connie
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