Heh, thanks.
Yeah I trimmed my code for display. But thanks for the link, useful.
I'm still in prelim for my code, so I'm sure I could do some more checks
along the way.
Thanks again.
--Alex
On 11/3/05, Ricker, William <[EMAIL PROTECTED]> wrote:
>
> Alex,
>
> > I figured it out.
>
> Congratulations!
>
> > just figured I'd send out what I did, in case
> > anyone else wanted to know:
>
> Good to have it in the archives for future reference. Thanks for taking
> the time to post it back.
>
> I'd assume your production code is longer and more paranoid than the
> fragment shown. XML::XPath requires error checking, even though it
> doesn't return undef as so many do. E.g.,
>
> > foreach my $kw ($item->find('KEYWORD')->get_nodelist){
>
> Some documents might result in find() returning something that doesn't
> respond to get_nodelist. In
> http://search.cpan.org/~msergeant/XML-XPath-1.13/XPath.pm#nodeset_=_find
> ($path,_[$context])
> says it could return
>
> XML::XPath::NodeSet object containing the nodes it found
> (or empty if no nodes matched the path), or one of
> XML::XPath::Literal
> (a string), XML::XPath::Number, or XML::XPath::Boolean. It should
> always return something - and you can use ->isa() to find out what it
>
> returned. If you need to check how many nodes it found you should
> check
> $nodeset->size
>
> but even that isn't foolproof since XML::XPath::Boolean->size() is
> apparently not supported either.
>
>
> -- Bill
>
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