On Thu, Nov 13, 2008 at 10:58 AM, Todd Rinaldo <[EMAIL PROTECTED]> wrote:
> My question: Is there any easy way to make a recursive block that can
> test if an unpredictably deep hash is defined?
>
Perhaps, but it would be easier to write a routine in Perl:
sub nested {
my ($hash, @keys) = @_;
for my $key (@keys) {
return if ref $hash ne 'HASH' || !exists $hash->{$key};
$hash = $hash->{$key};
}
return 1;
}
Provide the function to your template, and then you could say:
[% NEXT IF !nested(hash, 'fi', 'fo', 'fum', 'bar') %]
Alternately, you could make it a new hash vmethod.
--Sean
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