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Think about Loose Coupling

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( #3333=superdoc: print w/replies, xml ) Need Help??
O Holy Brethren,

My code works fine. It's just that I am using it in a manual, and I have to justify and explain each detail. This section of my package takes a hash-array-hash from XML::Simple and prints out the contents successfully
foreach my $node(keys (%$source)) { my $elem=$source->{$node}; my $count=0; foreach my $attr (@$elem) { $self->print.="\n\n$node $count\n\n"; if ($count<1) {$self->nodename=$node;} foreach my $subnode(keys(%$attr)) { $self->print.=$subnode."\t".$attr->{$subnode}."\n"; } $count++; } }
Why is the -> necessary in $source->{$node}, and why the %$ and @$ symbols instead of just % and @?

In smaller, non-module scripts I use this kind of format:
foreach $label (keys %contact) { print"$label:$contact{$label}\n";
Forgive my ignorance, and peace be with you


In reply to The Drivel is in the Details by dalgetty

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