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It might not look nice but I would do the following:
#!/usr/local/bin/perl
use strict;
use warnings;
my $arrayref = [ [ [ 'user1', 'c'], [ 'user2', 'a'], [ 'user2', 'b' ],[
'user2', 'd' ],[ 'user3', 'a' ],[ 'user2', 'f' ] ] ];
my %hash;
foreach my $arrayreference ( [at] {${$arrayref}[0]} ) {
if ( ! defined $hash{${$arrayreference}[0]} ) {
$hash{${$arrayreference}[0]} = { group => [ ${$arrayreference}[1] ] };
} else {
push [at] {${$hash{${$arrayreference}[0]}}{group}}, ${$arrayreference}[1];
}
}
use Data::Dumper;
print Dumper %hash;
It prints:
$ perl test.pl
$VAR1 = 'user1';
$VAR2 = {
'group' => [
'c'
]
};
$VAR3 = 'user3';
$VAR4 = {
'group' => [
'a'
]
};
$VAR5 = 'user2';
$VAR6 = {
'group' => [
'a',
'b',
'd',
'f'
]
};
Which is I believe what you are after right?
Regards,
Rob
On Fri, May 13, 2011 at 12:11 PM, Agnello George
<agnello.dsouza [at] gmail.com>wrote:
> Hi All
>
> I have a small issue in arranging data with a array ref .
>
> $arrayref = [ [ [ 'user1, 'c'], [ 'user2', 'a'], [ 'user2', 'b' ],[
> 'user2', 'd' ],[ 'user3', 'a' ],[ 'user2', 'f' ] ] ];
>
>
> i tried the following
>
> my %sh ;
>
> foreach my $i ( [at] $arrayref) {
> push ( [at] {$sh{$i->[0]}},{group => [$i->[1] } );
> }
>
>
> required hash
>
> %sh = ( user1 => { group => [ c ] },
>
> user2 => { group => [ a b d f] },
>
> user3 => { group => [ a ] }
> )
>
>
>
> but i am not able to get it in this format .
>
> Can some one please help me out
>
> Thanks a lot
>
>
> --
> Regards
> Agnello D'souza
>
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