use Data::Dumper;
sub mychomp {
  while (@_) {
    eval {chomp $_[0] }, shift, next unless ref ;
    (push @_, @{shift @_}), next if ref $_[0] eq 'ARRAY';
    (push @_, values %{shift @_}), next if ref $_[0] eq 'HASH';
    shift;
  }
}

my $foo = "scalar\n";
my @foo = (
  [
      "bar\n", "foo\n", "xyzzy\n",
      { blaat => "hee hee\n", hihi => "hoho\n" }
  ],
  {qw(a b c d e f)}, "w00t\n", \$foo, \ "read-only\n"
);
mychomp(@foo);
print Dumper(\@foo);
__END__


$VAR1 = [
          'ARRAY(0x80f3764)',
          'HASH(0x81495a8)',
          'w00t',
          'SCALAR(0x8131fe8)',
          'SCALAR(0x813e78c)'
        ];