XML::LibXML::Literal(3pm) User Contributed Perl Documentation XML::LibXML::Literal(3pm)NAME
XML::LibXML::Literal - Simple string values.
DESCRIPTION
In XPath terms a Literal is what we know as a string.
API
new($string)
Create a new Literal object with the value in $string. Note that " and ' will be converted to " and ' respectively. That is not
part of the XPath specification, but I consider it useful. Note though that you have to go to extraordinary lengths in an XML template file
(be it XSLT or whatever) to make use of this:
<xsl:value-of select=""I'm feeling &quot;sad&quot;""/>
Which produces a Literal of:
I'm feeling "sad"
value()
Also overloaded as stringification, simply returns the literal string value.
cmp($literal)
Returns the equivalent of perl's cmp operator against the given $literal.
perl v5.14.2 2012-06-20 XML::LibXML::Literal(3pm)
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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 = 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
2.0008
COPYRIGHT
2001-2007, AxKit.com Ltd.
2002-2006, Christian Glahn.
2006-2009, Petr Pajas.
perl v5.16.2 2012-10-22 XML::LibXML::XPathExpression(3)
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