Insert text at line number Post: 302337755

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xml::libxml::xpathexpression

XML::LibXML::XPathExpression(3) 			User Contributed Perl Documentation			   XML::LibXML::XPathExpression(3)

NAME

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

SYNOPSIS

	 use XML::LibXML;
	 my $compiled_xpath = new XML::LibXML::XPathExpression('//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

       1.70

COPYRIGHT

       2001-2007, AxKit.com Ltd.

       2002-2006, Christian Glahn.

       2006-2009, Petr Pajas.

perl v5.12.1							    2009-10-07					   XML::LibXML::XPathExpression(3)

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