I'm able to process WordPress' inexcusably messy output using HTML::TreeBuilder::XPath. However when I try to call the delete method on the object I get warnings or errors. I would like the problem to go away but neither have access to the site producing the document nor to WordPress upstream which is actually where the fault lies. Anyway, when I call delete after otherwise successful processing of the document I get the following error: 

Deep recursion on subroutine "HTML::Element::delete"
 at /usr/share/perl5/HTML/Element.pm line 567.
Deep recursion on subroutine "HTML::Element::delete_content"
 at /usr/share/perl5/HTML/Element.pm line 580.

[download]

Can I just use undef instead of calling the delete method? Or is there another approach which is better? I use HTML::TreeBuilder::XPath extensively in the real script but maybe could or should do some pre-processing with a different parser though I'd rather not.

Here is a stripped down example of the problem: 

#!/usr/bin/perl

use HTML::TreeBuilder::XPath;
use strict;
use warnings;

my $ent = HTML::TreeBuilder::XPath->new;
$ent->parse_file(\*DATA);

$ent->delete;

exit(0);

__DATA__
<html>
<head>
<title>foo bar</title>
</head>
<body>
foo
<br />
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<center>
<strong>bar</strong>
<br />
<center>(baz)</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</center>
</body>
</html>

[download]

In reply to Unnesting deeply nested HTML elements (Deep recursion on subroutine "HTML::Element::delete") by mldvx4

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