Question on XML::LibXML...

[biswanath_c]

Hi,


I am trying to use XML::LibXML for parsing an XML doc. I was not able to find a proper API documentation for XML::LibXML. Could any of you point me to a decent API doc please?

I was able to get the root node of an xml doc and find a node with a particular name. But I was unable to get the value of the node. What is the API to get the value (a string) of an XML node using XML::LibXML?

[SilasTheMonk]

I usually find the CPAN documentation adequate though you do have to read several modules: XML::LibXML::Element, XML::LibXML::Node etc. A separate issue is that your documentation problem may be with XPath and not XML::LibXML. I find http://www.w3schools.com/Xpath/ quite helpful in this regard. The real gotcha however is very often that when you try to parse a wild piece of XML, it often has a namespace set. The following example I have just grabbed out of some code of mine.

my $parser = XML::LibXML->new();
my $doc = $parser->parse_string($xml_sitemap);
print $doc->getDocumentElement->getNamespaces->getValue, "\n";
my $xpc = XML::LibXML::XPathContext->new();
$xpc->registerNs('x', $doc->getDocumentElement->getNamespaces->getValu
+e);

foreach my $u ($xpc->findnodes('//x:loc/child::text()',$doc)) {
        my $url = $u->toString;
        .......
}

[ramrod]

Sounds like you're looking for the text node. Use /text() in your xpath to reference this node.

For example, if you want to point to a particular node:

/root/element/text()

Or more generically:

//element/text()

If you provide some sample xml, we could help out much more.