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Re: XML::Twig - how can I test for an attribute when the attribute value is 0?

by philiprbrenan (Monk)
on Aug 29, 2012 at 14:14 UTC ( #990478=note: print w/ replies, xml ) Need Help??


in reply to XML::Twig - how can I test for an attribute when the attribute value is 0?

Please assign:

my $f = $label ->att('fq');

and then test whether $f is defined before attempting to decode its actual value.


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Re^2: XML::Twig - how can I test for an attribute when the attribute value is 0?
by mertserger (Curate) on Aug 30, 2012 at 08:07 UTC

    I've actually been able to test if it is defined in one step which enabled me to keep the original code structure:if (defined $elt->att('fq') && $la->att('fq') eq '0') does what I need.

    just to show that there is indeed "more than one way to do it" in Perl, I have spotted in another piece of code written usingXML::Twig one of my colleagues used the start tag function and looked for the string "fq=" which would also work but is not as elegant as using defined in my opinion.

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