| Subject: | endless recursion in _find_path |
The attached perl script reproduces a bug that haunted me for quite a
while now. Due to a bug in the caching, _find_path runs an endless
recursion.
test-xml-autowriter.pl uses XML::AutoWriter to fill an XML file
conforming to the attached DTD. One of the optional elements, "rubrik",
is not filled during the first 5 runs of the loop. On the 6th run of the
loop, the element "rubrik" is filled, resulting in the endless recursion.
| Subject: | pmg-artikel-liste.dtd |
Message body not shown because it is not plain text.
| Subject: | test-xml-autowriter.pl |
use warnings;
use strict;
use XML::Doctype;
use XML::AutoWriter;
my $encoding = 'utf-8';
my $doctype = XML::Doctype->new('artikel-liste', SYSTEM_ID => 'pmg-artikel-liste.dtd');
my $writer = XML::AutoWriter->new(DOCTYPE => $doctype, OUTPUT => 'test.xml');
$writer->xmlDecl($encoding);
$writer->doctype('artikel-liste', undef, '"pmg-artikel-liste.dtd"');
my $end = $ARGV[0] || 1;
foreach my $i (1 .. $end) {
print STDERR "Run $i\n";
$writer->dataElement('artikel-id', 'A1');
$writer->dataElement('lieferant-id', '123');
$writer->dataElement('quelle-id', '456');
$writer->dataElement('name', 'world news');
$writer->dataElement('datum', '20120101');
$writer->dataElement('seite-start', 1);
$writer->dataElement('autor-name', 'me');
$writer->dataElement('rubrik', 'news') if ($i > 5);
$writer->dataElement('titel', 'headline');
$writer->dataElement('absatz', 'foo bar');
$writer->endTag('artikel');
}
$writer->end;