1XML::LibXML::Node(3)  User Contributed Perl Documentation XML::LibXML::Node(3)
2
3
4

NAME

6       XML::LibXML::Node - Abstract Base Class of XML::LibXML Nodes
7

SYNOPSIS

9         use XML::LibXML;
10
11         $name = $node->nodeName;
12         $node->setNodeName( $newName );
13         $bool = $node->isSameNode( $other_node );
14         $bool = $node->isEqual( $other_node );
15         $num = $node->unique_key;
16         $content = $node->nodeValue;
17         $content = $node->textContent;
18         $type = $node->nodeType;
19         $node->unbindNode();
20         $childnode = $node->removeChild( $childnode );
21         $oldnode = $node->replaceChild( $newNode, $oldNode );
22         $node->replaceNode($newNode);
23         $childnode = $node->appendChild( $childnode );
24         $childnode = $node->addChild( $childnode );
25         $node = $parent->addNewChild( $nsURI, $name );
26         $node->addSibling($newNode);
27         $newnode =$node->cloneNode( $deep );
28         $parentnode = $node->parentNode;
29         $nextnode = $node->nextSibling();
30         $nextnode = $node->nextNonBlankSibling();
31         $prevnode = $node->previousSibling();
32         $prevnode = $node->previousNonBlankSibling();
33         $boolean = $node->hasChildNodes();
34         $childnode = $node->firstChild;
35         $childnode = $node->lastChild;
36         $documentnode = $node->ownerDocument;
37         $node = $node->getOwner;
38         $node->setOwnerDocument( $doc );
39         $node->insertBefore( $newNode, $refNode );
40         $node->insertAfter( $newNode, $refNode );
41         @nodes = $node->findnodes( $xpath_expression );
42         $result = $node->find( $xpath );
43         print $node->findvalue( $xpath );
44         $bool = $node->exists( $xpath_expression );
45         @childnodes = $node->childNodes();
46         @childnodes = $node->nonBlankChildNodes();
47         $xmlstring = $node->toString($format,$docencoding);
48         $c14nstring = $node->toStringC14N();
49         $c14nstring = $node->toStringC14N($with_comments, $xpath_expression , $xpath_context);
50         $c14nstring = $node->toStringC14N_v1_1();
51         $c14nstring = $node->toStringC14N_v1_1($with_comments, $xpath_expression , $xpath_context);
52         $ec14nstring = $node->toStringEC14N();
53         $ec14nstring = $node->toStringEC14N($with_comments, $xpath_expression, $inclusive_prefix_list);
54         $ec14nstring = $node->toStringEC14N($with_comments, $xpath_expression, $xpath_context, $inclusive_prefix_list);
55         $str = $doc->serialize($format);
56         $localname = $node->localname;
57         $nameprefix = $node->prefix;
58         $uri = $node->namespaceURI();
59         $boolean = $node->hasAttributes();
60         @attributelist = $node->attributes();
61         $URI = $node->lookupNamespaceURI( $prefix );
62         $prefix = $node->lookupNamespacePrefix( $URI );
63         $node->normalize;
64         @nslist = $node->getNamespaces;
65         $node->removeChildNodes();
66         $strURI = $node->baseURI();
67         $node->setBaseURI($strURI);
68         $node->nodePath();
69         $lineno = $node->line_number();
70

DESCRIPTION

72       XML::LibXML::Node defines functions that are common to all Node Types.
73       An XML::LibXML::Node should never be created standalone, but as an
74       instance of a high level class such as XML::LibXML::Element or
75       XML::LibXML::Text. The class itself should provide only common
76       functionality. In XML::LibXML each node is part either of a document or
77       a document-fragment. Because of this there is no node without a parent.
78       This may causes confusion with "unbound" nodes.
79

METHODS

81       Many functions listed here are extensively documented in the DOM Level
82       3 specification (<http://www.w3.org/TR/DOM-Level-3-Core/>). Please
83       refer to the specification for extensive documentation.
84
85       nodeName
86             $name = $node->nodeName;
87
88           Returns the node's name. This function is aware of namespaces and
89           returns the full name of the current node ("prefix:localname").
90
91           Since 1.62 this function also returns the correct DOM names for
92           node types with constant names, namely: #text, #cdata-section,
93           #comment, #document, #document-fragment.
94
95       setNodeName
96             $node->setNodeName( $newName );
97
98           In very limited situations, it is useful to change a nodes name. In
99           the DOM specification this should throw an error. This Function is
100           aware of namespaces.
101
102       isSameNode
103             $bool = $node->isSameNode( $other_node );
104
105           returns TRUE (1) if the given nodes refer to the same node
106           structure, otherwise FALSE (0) is returned.
107
108       isEqual
109             $bool = $node->isEqual( $other_node );
110
111           deprecated version of isSameNode().
112
113           NOTE isEqual will change behaviour to follow the DOM specification
114
115       unique_key
116             $num = $node->unique_key;
117
118           This function is not specified for any DOM level. It returns a key
119           guaranteed to be unique for this node, and to always be the same
120           value for this node. In other words, two node objects return the
121           same key if and only if isSameNode indicates that they are the same
122           node.
123
124           The returned key value is useful as a key in hashes.
125
126       nodeValue
127             $content = $node->nodeValue;
128
129           If the node has any content (such as stored in a "text node") it
130           can get requested through this function.
131
132           NOTE: Element Nodes have no content per definition. To get the text
133           value of an Element use textContent() instead!
134
135       textContent
136             $content = $node->textContent;
137
138           this function returns the content of all text nodes in the
139           descendants of the given node as specified in DOM.
140
141       nodeType
142             $type = $node->nodeType;
143
144           Return a numeric value representing the node type of this node. The
145           module XML::LibXML by default exports constants for the node types
146           (see the EXPORT section in the XML::LibXML manual page).
147
148       unbindNode
149             $node->unbindNode();
150
151           Unbinds the Node from its siblings and Parent, but not from the
152           Document it belongs to. If the node is not inserted into the DOM
153           afterwards, it will be lost after the program terminates. From a
154           low level view, the unbound node is stripped from the context it is
155           and inserted into a (hidden) document-fragment.
156
157       removeChild
158             $childnode = $node->removeChild( $childnode );
159
160           This will unbind the Child Node from its parent $node. The function
161           returns the unbound node. If "oldNode" is not a child of the given
162           Node the function will fail.
163
164       replaceChild
165             $oldnode = $node->replaceChild( $newNode, $oldNode );
166
167           Replaces the $oldNode with the $newNode. The $oldNode will be
168           unbound from the Node. This function differs from the DOM L2
169           specification, in the case, if the new node is not part of the
170           document, the node will be imported first.
171
172       replaceNode
173             $node->replaceNode($newNode);
174
175           This function is very similar to replaceChild(), but it replaces
176           the node itself rather than a childnode. This is useful if a node
177           found by any XPath function, should be replaced.
178
179       appendChild
180             $childnode = $node->appendChild( $childnode );
181
182           The function will add the $childnode to the end of $node's
183           children. The function should fail, if the new childnode is already
184           a child of $node. This function differs from the DOM L2
185           specification, in the case, if the new node is not part of the
186           document, the node will be imported first.
187
188       addChild
189             $childnode = $node->addChild( $childnode );
190
191           As an alternative to appendChild() one can use the addChild()
192           function. This function is a bit faster, because it avoids all DOM
193           conformity checks.  Therefore this function is quite useful if one
194           builds XML documents in memory where the order and ownership
195           ("ownerDocument") is assured.
196
197           addChild() uses libxml2's own xmlAddChild() function. Thus it has
198           to be used with extra care: If a text node is added to a node and
199           the node itself or its last childnode is as well a text node, the
200           node to add will be merged with the one already available. The
201           current node will be removed from memory after this action. Because
202           perl is not aware of this action, the perl instance is still
203           available. XML::LibXML will catch the loss of a node and refuse to
204           run any function called on that node.
205
206             my $t1 = $doc->createTextNode( "foo" );
207              my $t2 = $doc->createTextNode( "bar" );
208              $t1->addChild( $t2 );       # is OK
209              my $val = $t2->nodeValue(); # will fail, script dies
210
211           Also addChild() will not check if the added node belongs to the
212           same document as the node it will be added to. This could lead to
213           inconsistent documents and in more worse cases even to memory
214           violations, if one does not keep track of this issue.
215
216           Although this sounds like a lot of trouble, addChild() is useful if
217           a document is built from a stream, such as happens sometimes in SAX
218           handlers or filters.
219
220           If you are not sure about the source of your nodes, you better stay
221           with appendChild(), because this function is more user friendly in
222           the sense of being more error tolerant.
223
224       addNewChild
225             $node = $parent->addNewChild( $nsURI, $name );
226
227           Similar to "addChild()", this function uses low level libxml2
228           functionality to provide faster interface for DOM building.
229           addNewChild() uses "xmlNewChild()" to create a new node on a given
230           parent element.
231
232           addNewChild() has two parameters $nsURI and $name, where $nsURI is
233           an (optional) namespace URI. $name is the fully qualified element
234           name; addNewChild() will determine the correct prefix if necessary.
235
236           The function returns the newly created node.
237
238           This function is very useful for DOM building, where a created node
239           can be directly associated with its parent. NOTE this function is
240           not part of the DOM specification and its use will limit your code
241           to XML::LibXML.
242
243       addSibling
244             $node->addSibling($newNode);
245
246           addSibling() allows adding an additional node to the end of a
247           nodelist, defined by the given node.
248
249       cloneNode
250             $newnode =$node->cloneNode( $deep );
251
252           cloneNode creates a copy of $node. When $deep is set to 1 (true)
253           the function will copy all child nodes as well.  If $deep is 0 only
254           the current node will be copied. Note that in case of element,
255           attributes are copied even if $deep is 0.
256
257           Note that the behavior of this function for $deep=0 has changed in
258           1.62 in order to be consistent with the DOM spec (in older versions
259           attributes and namespace information was not copied for elements).
260
261       parentNode
262             $parentnode = $node->parentNode;
263
264           Returns simply the Parent Node of the current node.
265
266       nextSibling
267             $nextnode = $node->nextSibling();
268
269           Returns the next sibling if any .
270
271       nextNonBlankSibling
272             $nextnode = $node->nextNonBlankSibling();
273
274           Returns the next non-blank sibling if any (a node is blank if it is
275           a Text or CDATA node consisting of whitespace only). This method is
276           not defined by DOM.
277
278       previousSibling
279             $prevnode = $node->previousSibling();
280
281           Analogous to getNextSibling the function returns the previous
282           sibling if any.
283
284       previousNonBlankSibling
285             $prevnode = $node->previousNonBlankSibling();
286
287           Returns the previous non-blank sibling if any (a node is blank if
288           it is a Text or CDATA node consisting of whitespace only). This
289           method is not defined by DOM.
290
291       hasChildNodes
292             $boolean = $node->hasChildNodes();
293
294           If the current node has child nodes this function returns TRUE (1),
295           otherwise it returns FALSE (0, not undef).
296
297       firstChild
298             $childnode = $node->firstChild;
299
300           If a node has child nodes this function will return the first node
301           in the child list.
302
303       lastChild
304             $childnode = $node->lastChild;
305
306           If the $node has child nodes this function returns the last child
307           node.
308
309       ownerDocument
310             $documentnode = $node->ownerDocument;
311
312           Through this function it is always possible to access the document
313           the current node is bound to.
314
315       getOwner
316             $node = $node->getOwner;
317
318           This function returns the node the current node is associated with.
319           In most cases this will be a document node or a document fragment
320           node.
321
322       setOwnerDocument
323             $node->setOwnerDocument( $doc );
324
325           This function binds a node to another DOM. This method unbinds the
326           node first, if it is already bound to another document.
327
328           This function is the opposite calling of XML::LibXML::Document's
329           adoptNode() function. Because of this it has the same limitations
330           with Entity References as adoptNode().
331
332       insertBefore
333             $node->insertBefore( $newNode, $refNode );
334
335           The method inserts $newNode before $refNode. If $refNode is
336           undefined, the newNode will be set as the new last child of the
337           parent node.  This function differs from the DOM L2 specification,
338           in the case, if the new node is not part of the document, the node
339           will be imported first, automatically.
340
341           $refNode has to be passed to the function even if it is undefined:
342
343             $node->insertBefore( $newNode, undef ); # the same as $node->appendChild( $newNode );
344              $node->insertBefore( $newNode ); # wrong
345
346           Note, that the reference node has to be a direct child of the node
347           the function is called on. Also, $newChild is not allowed to be an
348           ancestor of the new parent node.
349
350       insertAfter
351             $node->insertAfter( $newNode, $refNode );
352
353           The method inserts $newNode after $refNode. If $refNode is
354           undefined, the newNode will be set as the new last child of the
355           parent node.
356
357           Note, that $refNode has to be passed explicitly even if it is
358           undef.
359
360       findnodes
361             @nodes = $node->findnodes( $xpath_expression );
362
363           findnodes evaluates the xpath expression (XPath 1.0) on the current
364           node and returns the resulting node set as an array. In scalar
365           context, returns an XML::LibXML::NodeList object.
366
367           The xpath expression can be passed either as a string, or as a
368           XML::LibXML::XPathExpression object.
369
370           NOTE ON NAMESPACES AND XPATH:
371
372           A common mistake about XPath is to assume that node tests
373           consisting of an element name with no prefix match elements in the
374           default namespace. This assumption is wrong - by XPath
375           specification, such node tests can only match elements that are in
376           no (i.e. null) namespace.
377
378           So, for example, one cannot match the root element of an XHTML
379           document with "$node->find('/html')" since '/html' would only match
380           if the root element "<html>" had no namespace, but all XHTML
381           elements belong to the namespace http://www.w3.org/1999/xhtml.
382           (Note that "xmlns="..."" namespace declarations can also be
383           specified in a DTD, which makes the situation even worse, since the
384           XML document looks as if there was no default namespace).
385
386           There are several possible ways to deal with namespaces in XPath:
387
388           ·   The recommended way is to use the XML::LibXML::XPathContext
389               module to define an explicit context for XPath evaluation, in
390               which a document independent prefix-to-namespace mapping can be
391               defined. For example:
392
393                 my $xpc = XML::LibXML::XPathContext->new;
394                 $xpc->registerNs('x', 'http://www.w3.org/1999/xhtml');
395                 $xpc->find('/x:html',$node);
396
397           ·   Another possibility is to use prefixes declared in the queried
398               document (if known). If the document declares a prefix for the
399               namespace in question (and the context node is in the scope of
400               the declaration), "XML::LibXML" allows you to use the prefix in
401               the XPath expression, e.g.:
402
403                 $node->find('/x:html');
404
405           See also XML::LibXML::XPathContext->findnodes.
406
407       find
408             $result = $node->find( $xpath );
409
410           find evaluates the XPath 1.0 expression using the current node as
411           the context of the expression, and returns the result depending on
412           what type of result the XPath expression had. For example, the
413           XPath "1 * 3 + 52" results in a XML::LibXML::Number object being
414           returned. Other expressions might return an XML::LibXML::Boolean
415           object, or an XML::LibXML::Literal object (a string). Each of those
416           objects uses Perl's overload feature to "do the right thing" in
417           different contexts.
418
419           The xpath expression can be passed either as a string, or as a
420           XML::LibXML::XPathExpression object.
421
422           See also XML::LibXML::XPathContext->find.
423
424       findvalue
425             print $node->findvalue( $xpath );
426
427           findvalue is exactly equivalent to:
428
429             $node->find( $xpath )->to_literal;
430
431           That is, it returns the literal value of the results. This enables
432           you to ensure that you get a string back from your search, allowing
433           certain shortcuts.  This could be used as the equivalent of XSLT's
434           <xsl:value-of select="some_xpath"/>.
435
436           See also XML::LibXML::XPathContext->findvalue.
437
438           The xpath expression can be passed either as a string, or as a
439           XML::LibXML::XPathExpression object.
440
441       exists
442             $bool = $node->exists( $xpath_expression );
443
444           This method behaves like findnodes, except that it only returns a
445           boolean value (1 if the expression matches a node, 0 otherwise) and
446           may be faster than findnodes, because the XPath evaluation may stop
447           early on the first match (this is true for libxml2 >= 2.6.27).
448
449           For XPath expressions that do not return node-set, the method
450           returns true if the returned value is a non-zero number or a non-
451           empty string.
452
453       childNodes
454             @childnodes = $node->childNodes();
455
456           childNodes implements a more intuitive interface to the childnodes
457           of the current node. It enables you to pass all children directly
458           to a "map" or "grep". If this function is called in scalar context,
459           a XML::LibXML::NodeList object will be returned.
460
461       nonBlankChildNodes
462             @childnodes = $node->nonBlankChildNodes();
463
464           This is like childNodes, but returns only non-blank nodes (where a
465           node is blank if it is a Text or CDATA node consisting of
466           whitespace only). This method is not defined by DOM.
467
468       toString
469             $xmlstring = $node->toString($format,$docencoding);
470
471           This method is similar to the method "toString" of a
472           XML::LibXML::Document but for a single node. It returns a string
473           consisting of XML serialization of the given node and all its
474           descendants. Unlike "XML::LibXML::Document::toString", in this case
475           the resulting string is by default a character string (UTF-8
476           encoded with UTF8 flag on). An optional flag $format controls
477           indentation, as in "XML::LibXML::Document::toString". If the second
478           optional $docencoding flag is true, the result will be a byte
479           string in the document encoding (see
480           "XML::LibXML::Document::actualEncoding").
481
482       toStringC14N
483             $c14nstring = $node->toStringC14N();
484             $c14nstring = $node->toStringC14N($with_comments, $xpath_expression , $xpath_context);
485
486           The function is similar to toString(). Instead of simply
487           serializing the document tree, it transforms it as it is specified
488           in the XML-C14N Specification (see
489           <http://www.w3.org/TR/xml-c14n>). Such transformation is known as
490           canonization.
491
492           If $with_comments is 0 or not defined, the result-document will not
493           contain any comments that exist in the original document. To
494           include comments into the canonized document, $with_comments has to
495           be set to 1.
496
497           The parameter $xpath_expression defines the nodeset of nodes that
498           should be visible in the resulting document. This can be used to
499           filter out some nodes.  One has to note, that only the nodes that
500           are part of the nodeset, will be included into the result-document.
501           Their child-nodes will not exist in the resulting document, unless
502           they are part of the nodeset defined by the xpath expression.
503
504           If $xpath_expression is omitted or empty, toStringC14N() will
505           include all nodes in the given sub-tree, using the following XPath
506           expressions: with comments
507
508             (. | .//node() | .//@* | .//namespace::*)
509
510           and without comments
511
512             (. | .//node() | .//@* | .//namespace::*)[not(self::comment())]
513
514           An optional parameter $xpath_context can be used to pass an
515           XML::LibXML::XPathContext object defining the context for
516           evaluation of $xpath_expression. This is useful for mapping
517           namespace prefixes used in the XPath expression to namespace URIs.
518           Note, however, that $node will be used as the context node for the
519           evaluation, not the context node of $xpath_context!
520
521       toStringC14N_v1_1
522             $c14nstring = $node->toStringC14N_v1_1();
523             $c14nstring = $node->toStringC14N_v1_1($with_comments, $xpath_expression , $xpath_context);
524
525           This function behaves like toStringC14N() except that it uses the
526           "XML_C14N_1_1" constant for canonicalising using the "C14N 1.1
527           spec".
528
529       toStringEC14N
530             $ec14nstring = $node->toStringEC14N();
531             $ec14nstring = $node->toStringEC14N($with_comments, $xpath_expression, $inclusive_prefix_list);
532             $ec14nstring = $node->toStringEC14N($with_comments, $xpath_expression, $xpath_context, $inclusive_prefix_list);
533
534           The function is similar to toStringC14N() but follows the
535           XML-EXC-C14N Specification (see
536           <http://www.w3.org/TR/xml-exc-c14n>) for exclusive canonization of
537           XML.
538
539           The arguments $with_comments, $xpath_expression, $xpath_context are
540           as in toStringC14N(). An ARRAY reference can be passed as the last
541           argument $inclusive_prefix_list, listing namespace prefixes that
542           are to be handled in the manner described by the Canonical XML
543           Recommendation (i.e. preserved in the output even if the namespace
544           is not used). C.f. the spec for details.
545
546       serialize
547             $str = $doc->serialize($format);
548
549           An alias for toString(). This function was name added to be more
550           consistent with libxml2.
551
552       serialize_c14n
553           An alias for toStringC14N().
554
555       serialize_exc_c14n
556           An alias for toStringEC14N().
557
558       localname
559             $localname = $node->localname;
560
561           Returns the local name of a tag. This is the part behind the colon.
562
563       prefix
564             $nameprefix = $node->prefix;
565
566           Returns the prefix of a tag. This is the part before the colon.
567
568       namespaceURI
569             $uri = $node->namespaceURI();
570
571           returns the URI of the current namespace.
572
573       hasAttributes
574             $boolean = $node->hasAttributes();
575
576           returns 1 (TRUE) if the current node has any attributes set,
577           otherwise 0 (FALSE) is returned.
578
579       attributes
580             @attributelist = $node->attributes();
581
582           This function returns all attributes and namespace declarations
583           assigned to the given node.
584
585           Because XML::LibXML does not implement namespace declarations and
586           attributes the same way, it is required to test what kind of node
587           is handled while accessing the functions result.
588
589           If this function is called in array context the attribute nodes are
590           returned as an array. In scalar context, the function will return a
591           XML::LibXML::NamedNodeMap object.
592
593       lookupNamespaceURI
594             $URI = $node->lookupNamespaceURI( $prefix );
595
596           Find a namespace URI by its prefix starting at the current node.
597
598       lookupNamespacePrefix
599             $prefix = $node->lookupNamespacePrefix( $URI );
600
601           Find a namespace prefix by its URI starting at the current node.
602
603           NOTE Only the namespace URIs are meant to be unique. The prefix is
604           only document related. Also the document might have more than a
605           single prefix defined for a namespace.
606
607       normalize
608             $node->normalize;
609
610           This function normalizes adjacent text nodes. This function is not
611           as strict as libxml2's xmlTextMerge() function, since it will not
612           free a node that is still referenced by the perl layer.
613
614       getNamespaces
615             @nslist = $node->getNamespaces;
616
617           If a node has any namespaces defined, this function will return
618           these namespaces. Note, that this will not return all namespaces
619           that are in scope, but only the ones declared explicitly for that
620           node.
621
622           Although getNamespaces is available for all nodes, it only makes
623           sense if used with element nodes.
624
625       removeChildNodes
626             $node->removeChildNodes();
627
628           This function is not specified for any DOM level: It removes all
629           childnodes from a node in a single step. Other than the libxml2
630           function itself (xmlFreeNodeList), this function will not
631           immediately remove the nodes from the memory. This saves one from
632           getting memory violations, if there are nodes still referred to
633           from the Perl level.
634
635       baseURI ()
636             $strURI = $node->baseURI();
637
638           Searches for the base URL of the node. The method should work on
639           both XML and HTML documents even if base mechanisms for these are
640           completely different. It returns the base as defined in RFC 2396
641           sections "5.1.1. Base URI within Document Content" and "5.1.2. Base
642           URI from the Encapsulating Entity". However it does not return the
643           document base (5.1.3), use method "URI" of "XML::LibXML::Document"
644           for this.
645
646       setBaseURI ($strURI)
647             $node->setBaseURI($strURI);
648
649           This method only does something useful for an element node in an
650           XML document.  It sets the xml:base attribute on the node to
651           $strURI, which effectively sets the base URI of the node to the
652           same value.
653
654           Note: For HTML documents this behaves as if the document was XML
655           which may not be desired, since it does not effectively set the
656           base URI of the node. See RFC 2396 appendix D for an example of how
657           base URI can be specified in HTML.
658
659       nodePath
660             $node->nodePath();
661
662           This function is not specified for any DOM level: It returns a
663           canonical structure based XPath for a given node.
664
665       line_number
666             $lineno = $node->line_number();
667
668           This function returns the line number where the tag was found
669           during parsing.  If a node is added to the document the line number
670           is 0. Problems may occur, if a node from one document is passed to
671           another one.
672
673           IMPORTANT: Due to limitations in the libxml2 library line numbers
674           greater than 65535 will be returned as 65535. Please see
675           <http://bugzilla.gnome.org/show_bug.cgi?id=325533> for more
676           details.
677
678           Note: line_number() is special to XML::LibXML and not part of the
679           DOM specification.
680
681           If the line_numbers flag of the parser was not activated before
682           parsing, line_number() will always return 0.
683

AUTHORS

685       Matt Sergeant, Christian Glahn, Petr Pajas
686

VERSION

688       2.0132
689
691       2001-2007, AxKit.com Ltd.
692
693       2002-2006, Christian Glahn.
694
695       2006-2009, Petr Pajas.
696

LICENSE

698       This program is free software; you can redistribute it and/or modify it
699       under the same terms as Perl itself.
700
701
702
703perl v5.28.0                      2017-10-28              XML::LibXML::Node(3)
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