XML::LibXML::AttributeHash - Online Linux Manual PageSection : 3pm
Updated : 2020-11-08
Source : perl v5.32.0
Note : User Contributed Perl Documentation

NAMEXML::LibXML::AttributeHash − tie an XML::LibXML::Element to a hash to access its attributes

SYNOPSIS​ tie my %hash, 'XML::LibXML::AttributeHash', $element; ​ $hash{'href'} = 'http://example.com/'; ​ print $element−>getAttribute('href') . "\n";

DESCRIPTIONThis class allows an element's attributes to be accessed as if they were a plain old Perl hash. Attribute names become hash keys. Namespaced attributes are keyed using Clark notation. ​ my $XLINK = 'http://www.w3.org/1999/xlink'; ​ tie my %hash, 'XML::LibXML::AttributeHash', $element; ​ $hash{"{$XLINK}href"} = 'http://localhost/'; ​ print $element−>getAttributeNS($XLINK, 'href') . "\n"; There is rarely any need to use XML::LibXML::AttributeHash directly. In general, it is possible to take advantage of XML::LibXML::Element's overloading. The example in the SYNOPSIS could have been written: ​ $element−>{'href'} = 'http://example.com/'; ​ print $element−>getAttribute('href') . "\n"; The tie interface allows the passing of additional arguments to XML::LibXML::AttributeHash: ​ tie my %hash, 'XML::LibXML::AttributeHash', $element, %args; Currently only one argument is supported, the boolean weaken which (if true) indicates that the tied object's reference to the element should be a weak reference. This is used by XML::LibXML::Element's overloading. The ​weaken argument is ignored if you don't have a working Scalar::Util::weaken.
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