Thank you Sawyer and Ran. Intriguing… 

But I was thinking about something akin to how one combines two simple
hashes as:

%combined_hash = (%combined_hash, %added_hash);

(This of course overwrites same-key records, but in my application this is a
“feature” and a bonus... J)

My problem was that I was lost and couldn’t figure out how to deal with all
these references to anonymous inner hashes. L

Meir

 

 

From: [email protected] [mailto:[email protected]] On Behalf
Of sawyer x
Sent: יום ב 29 אוקטובר 2012 21:07
To: Perl in Israel
Subject: Re: [Israel.pm] Importing values from a 2D hash into another 2D
hash

 

Booya!

On Mon, Oct 29, 2012 at 9:04 PM, Ran Eilam <[email protected]> wrote:

Returning a new value instead of mutating the sub arguments:

sub combine_values {
  my $old = shift;
  my $new  = shift;
  return map {$_ => {
      %{ $old->{$_} },
      %{ $new->{$_} || {} }
  }} keys %$old;
}

Ran

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