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This queue is for tickets about the XML-LibXML CPAN distribution.

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The Basics
Id: 19970
Status: stalled
Priority: 0/
Queue: XML-LibXML

People
Owner: Nobody in particular
Requestors: bruce.miller [...] nist.gov
Cc:
AdminCc:

Bug Information
Severity: Normal
Broken in: 1.58
Fixed in: (no value)



Subject: Setting XML_DEBUG_CATALOG causes fatal error
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I've come across a curious bit with the XML_DEBUG_CATALOG environment variable (which tells libxml2 to output extra debugging info while resolving entities from catalogs). The following code snippet works when the variable is unset, but if you do export XML_DEBUG_CATALOG= before running it will do the apparent equivalent of die. The message sounds almost as if it executed: die "found the entity!" which seems to be overly enthusiastic :> I poked a little in LibXML.xs but can't figure out what is going on other than something reportable as an error has ended up in saved_error (but I know next to nothing about xs) This is happening in Fedora Core 5, perl 5.8.8-5, perl-XML-LibXML 1.58-2.2.2, libxml2 2.6.23-1.2 ====================== #!/usr/bin/perl -w use XML::LibXML; my $pubid ="-//OASIS//DTD DocBook XML V4.4//EN"; my $sysid = "docbookx.dtd"; XML::LibXML->load_catalog('/etc/xml/catalog'); my $dtd = XML::LibXML::Dtd->new($pubid,$sysid); print "Got catalog: $dtd\n";
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I'm sorry, I have to postpone this bug. libxml2 reports its catalog debug output via the (flat) error channel which makes it impossible to differentiate this output from actual errors. That is also why the constructor fails. Unfortunately, I don't see a way of fixing this without switching to libxml2's structured error channels, which is a large scale task. I did some attempts some time ago but it was never actually finished.


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