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XML::LibXML and XML Namespaces (processing OpenOffice documents)by tomhukins (Curate) |
on Mar 11, 2003 at 14:07 UTC ( [id://242028]=perlquestion: print w/replies, xml ) | Need Help?? |
tomhukins has asked for the wisdom of the Perl Monks concerning the following question: I want to use XML::LibXML to process OpenOffice (sxw) files. OpenOffice stores its information in a Zip archive containing several XML files. I have extracted the content.xml file from such an archive. I have used XML::LibXML before, but never with XML documents that use namespaces. OpenOffice files use various namespaces for the different types of content. Normally, I would write something like: to retrieve all the nodes of type p. OpenOffice stores paragraphs in p elements within the text namespace. So, I replaced the findnodes line above with: but this returns the error XPath error Undefined namespace prefix in //text:p xmlXPathCompiledEval: evaluation failed. I fixed this problem with: but I don't understand why one way works and the other way doesn't. Both contexts (tree and documentElement) work with another XML document that does not use namespaces. Can anyone here enlighten me?
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