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XML::LibXML::XPathExprUseroContributed Perl DocXML::LibXML::XPathExpression(3)

NAME
       XML::LibXML::XPathExpression - XML::LibXML::XPathExpression - interface
       to libxml2 pre-compiled XPath expressions

SYNOPSIS
	 use 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 );

DESCRIPTION
       This 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).

AUTHORS
       Matt Sergeant, Christian	Glahn, Petr Pajas

VERSION
       2.0206

COPYRIGHT
       2001-2007, AxKit.com Ltd.

       2002-2006, Christian Glahn.

       2006-2009, Petr Pajas.

LICENSE
       This program is free software; you can redistribute it and/or modify it
       under the same terms as Perl itself.

perl v5.32.1			  2020-09-15   XML::LibXML::XPathExpression(3)

NAME | SYNOPSIS | DESCRIPTION | AUTHORS | VERSION | COPYRIGHT | LICENSE

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