Here is an approach that should work no matter how complicated your data structure becomes (provided the data you want remains in the form humps => d):
#! perl
use strict;
use warnings;
use Data::Dumper;
my $animals = {
gnu => {
humps => 0,
mascot_for => 'emacs',
},
dromedary => {
humps => 1,
mascot_for => 'perl',
},
camel => {
humps => 2,
mascot_for => 'perl',
},
};
my $flat = Dumper($animals);
print "$1\n" while $flat =~ / 'humps' \s+ => \s+ (\d+) /gx;
Output:
2
0
1
TMTOWTDI.
Athanasius <°(((>< contra mundum
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