I dont know whether i understood the OP question correctly or not. I have written a snippet which will change all the "that" in keys/values to "them". Correct me if i am wrong.
Added some more elements in to that hash for navigational purpose.
#!/usr/bin/perl -w
use strict;
use Data::Dumper;
my $this = {'data'=>{}, 'name'=>'this'};
my $that = {'name'=>"that", 'value'=>"123"};
$this->{data}->{ $that->{'name'} } = $that;
$this->{data}->{that}->{abc}->{that}="them";
$this->{data}->{abc}->{that}->{that}->{that}->{abc}->{that} = "them";
$this->{data}->{abc}->{that}->{that}->{that} = "abc";
print Dumper $this;
my $struct = &change($this,"that","them");
print Dumper($struct);
sub change {
my ($struct,$input,$output)=@_;
if ((ref $struct)=~/HASH/){
foreach my $t (keys %{$struct}) {
if (ref $struct->{$t}) {
if ($t eq $input) {
my $k = $struct->{$t};
$struct->{$output}=$k;
delete $struct->{$t};
&change($struct->{$output},$input,$output);
}
&change($struct->{$t},$input,$output);
}
else {
$struct->{$t} = $output if ($struct->{$t} eq $input
+);
if ($t eq $input) {
my $k = $struct->{$t};
$struct->{$output}=$k;
delete $struct->{$t};
}
}
}
}
return $struct;
}
Regards,
Murugesan Kandasamy
use perl for(;;);