I'm very new to HoHoL or HoH for that matter. Basically I have a hash of hashes. One of the values of a nested hash is an array of subroutine references that I would like to execute.

#!/usr/bin/perl -w
use strict;

my %HoL = (
        one => [ (\&hello, \&goodbye,) ],
        two => [ (\&hello,) ],
);

for my $key(%HoL) {
  for my $i(@{$HoL{$key}}) {
    print "$key -> &{$HoL{$key}->{$i}}\n";
  }
}

sub hello {
  print "hello";
}

sub goodbye {
  print "bye";
}

[download]

I've messed around with replacing the sub routine references with just text values and looping over them for printing and things go alright. So, I'm suspecting that there is a problem in the manner that I am calling the subroutine. I've messed around with different manners of calling the routines as well as just calling the first with &{$HoL{$key}[0]}

 for my $key(%HoL) {
  &{$HoL{$key}[0]};
 }

[download]

which seems to be successful but still produces an error complaining about a "" string being used as a subroutine. I'm just not sure where that is coming from since both keys have arrays with at least one element.

I appreciate your advice. Thanks -c

In reply to Hash of Hash of Listed subroutines by c

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