Re: XML::LibXML::Reader and XPATH

This has nothing to do with Perl and/or libxml, instead it is about XML.

but the tags do not have any prefix like examples in the documentation

Well you can add the prefixes, i.e. qualify the tags with the namespace. But the uniprot element declaration looks suspicious to me.

You might want to spend some time on choosing the right strategy for determining what the default/target namespace should be, see DefaultNamespace.pdf for a discussion. This gives a few examples on how to do it.

HTH

Comment on Re: XML::LibXML::Reader and XPATH

Replies are listed 'Best First'.
Re^2: XML::LibXML::Reader and XPATH and default namespace by mat21 (Beadle) on Feb 20, 2009 at 15:12 UTC
Thanks for your answer and the link. it helped me to find another interesting link and it is not so simple XPath vs the default namespace I don't think the use of XML::LibXML::XPathContext is compatible XML::LibXML::Reader which is annoying. The files I am parsing are really big and I don't want to use DOM or SAX...	[reply]
Re^3: XML::LibXML::Reader and XPATH and default namespace by dHarry (Abbot) on Feb 20, 2009 at 16:12 UTC
For big files DOM is out of the question though there always tricks of course. With SAX I've parsed big files with good performance (Personally I favor the Xalan and Xerces implementations of Apache). Although I do use libxml2 I invariably use XML::Twig when I am in a Perl environment. I have parsed files over 1 GB with it. There is also XML::Twig::XPath but I never used it. You would have to check if it solves your problem. The document I mentioned is only one from a (big) series. They elaborate the best practices for XML-Schema usage.	[reply]