XML::LibXML::XPathExpression - phpMan

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
    2.0134

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.

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