Jay Baker wrote:
> I have a problem when returning single-element arrays from perl functions.
> I am using TT 2.08, Activestate perl 5.6.1, Redhat 7.3
The simple answer is that TT doesn't support naked lists. You should always
return a reference to a list (if you want your results to be interpreted as
a list), rather than just a list of items.
However, TT does automatically fold a single element into a list of that
one element in certains cases. But this DWIMery can catch you out if
you're not careful, so it's best to always return a list reference if you
can.
sub bad_test_function {
return ( {name=>"bob"}, {name=>"fred"} );
}
sub good_test_function {
return [ {name=>"bob"}, {name=>"fred"} ];
}
> However, if the array contains only a single hash pointer
> TT interprets this as a hash, rather than an array containing a
> single element (and FOREACH produces some strange results).
Yes, if you return a hash array then TT will treat it as a hash array.
If you want to return a list containing a single hash array, then you
should return a list (reference) containing a hash array.
HTH
A
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