XML::LibXML::XPathContext XML::LibXML::XPathContext is an XPath evaluation.
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XML::LibXML::XPathContext Tags

Perl module XML XPath XPath evaluation XPath context

XML::LibXML::XPathContext Description

XML::LibXML::XPathContext is an XPath evaluation. XML::LibXML::XPathContext is an XPath evaluation.SYNOPSIS my $xpc = XML::LibXML::XPathContext->new(); my $xpc = XML::LibXML::XPathContext->new($node); $xpc->registerNs($prefix, $namespace_uri) $xpc->unregisterNs($prefix) $uri = $xpc->lookupNs($prefix) $xpc->registerVarLookupFunc($callback, $data) $data = $xpc->getVarLookupData(); $callback = $xpc->getVarLookupFunc(); $xpc->unregisterVarLookupFunc($name); $xpc->registerFunctionNS($name, $uri, $callback) $xpc->unregisterFunctionNS($name, $uri) $xpc->registerFunction($name, $callback) $xpc->unregisterFunction($name) @nodes = $xpc->findnodes($xpath) @nodes = $xpc->findnodes($xpath, $context_node ) $nodelist = $xpc->findnodes($xpath, $context_node ) $object = $xpc->find($xpath ) $object = $xpc->find($xpath, $context_node ) $value = $xpc->findvalue($xpath ) $value = $xpc->findvalue($xpath, $context_node ) $xpc->setContextNode($node) my $node = $xpc->getContextNode; $xpc->setContextPosition($position) my $position = $xpc->getContextPosition; $xpc->setContextSize($size) my $size = $xpc->getContextSize; $xpc->setContextNode($node)The XML::LibXML::XPathContext class provides an almost complete interface to libxml2's XPath implementation. With XML::LibXML::XPathContext is is possible to evaluate XPath expressions in the context of arbitrary node, context size, and context position, with a user-defined namespace-prefix mapping, custom XPath functions written in Perl, and even a custom XPath variable resolver. Requirements: · Perl

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