HTML::HeadParser doesn't return undef when there's no title

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Hi-

I've been using HTML::HeadParser to strip the titles from some pages, and I
think I've found run into a small problem.  I'm using code similar to the
following:

$hp = HTML::HeadParser->new;
foreach $filename (@files) {
	$hp->parse_file($filename);
	print "$filename\t\t",$hp->header('Title'),"\n";
}

and it works fine as long as the document has a <title> tag, but if it
doesn't, it retains the value of the last $foo->header('Title') call until
it comes across another document with a <title> tag.

Of course, a simple /<title>(.*)<\/title>/i works as would keeping track of
the result of the last header method call, but I thought I should report
what seems to be a minor bug.

Chris Russo
crusso@mit.edu

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