Query: xml::libxml::xpathexpression
OS: mojave
Section: 3
Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar
XML::LibXML::XPathExpression(3) User Contributed Perl Documentation XML::LibXML::XPathExpression(3)NAMEXML::LibXML::XPathExpression - XML::LibXML::XPathExpression - interface to libxml2 pre-compiled XPath expressionsSYNOPSISuse XML::LibXML; my $compiled_xpath = XML::LibXML::XPathExpression->new('//foo[@bar="baz"][position()<4]'); # interface from XML::LibXML::Node my $result = $node->find($compiled_xpath); my @nodes = $node->findnodes($compiled_xpath); my $value = $node->findvalue($compiled_xpath); # interface from XML::LibXML::XPathContext my $result = $xpc->find($compiled_xpath,$node); my @nodes = $xpc->findnodes($compiled_xpath,$node); my $value = $xpc->findvalue($compiled_xpath,$node); $compiled = XML::LibXML::XPathExpression->new( xpath_string );DESCRIPTIONThis is a perl interface to libxml2's pre-compiled XPath expressions. Pre-compiling an XPath expression can give in some performance benefit if the same XPath query is evaluated many times. "XML::LibXML::XPathExpression" objects can be passed to all "find..." functions "XML::LibXML" that expect an XPath expression. new() $compiled = XML::LibXML::XPathExpression->new( xpath_string ); The constructor takes an XPath 1.0 expression as a string and returns an object representing the pre-compiled expressions (the actual data structure is internal to libxml2).AUTHORSMatt Sergeant, Christian Glahn, Petr PajasVERSION2.0110COPYRIGHT2001-2007, AxKit.com Ltd. 2002-2006, Christian Glahn. 2006-2009, Petr Pajas.LICENSEThis program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. perl v5.18.2 2014-02-01 XML::LibXML::XPathExpression(3)
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