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

NAME
       XML::LibXML::Node - Abstract Base Class of XML::LibXML Nodes

SYNOPSIS
	 use XML::LibXML;

	 $name = $node->nodeName;
	 $node->setNodeName( $newName );
	 $bool = $node->isSameNode( $other_node	);
	 $bool = $node->isEqual( $other_node );
	 $num =	$node->unique_key;
	 $content = $node->nodeValue;
	 $content = $node->textContent;
	 $type = $node->nodeType;
	 $node->unbindNode();
	 $childnode = $node->removeChild( $childnode );
	 $oldnode = $node->replaceChild( $newNode, $oldNode );
	 $node->replaceNode($newNode);
	 $childnode = $node->appendChild( $childnode );
	 $childnode = $node->addChild( $childnode );
	 $node = $parent->addNewChild( $nsURI, $name );
	 $node->addSibling($newNode);
	 $newnode =$node->cloneNode( $deep );
	 $parentnode = $node->parentNode;
	 $nextnode = $node->nextSibling();
	 $nextnode = $node->nextNonBlankSibling();
	 $prevnode = $node->previousSibling();
	 $prevnode = $node->previousNonBlankSibling();
	 $boolean = $node->hasChildNodes();
	 $childnode = $node->firstChild;
	 $childnode = $node->lastChild;
	 $documentnode = $node->ownerDocument;
	 $node = $node->getOwner;
	 $node->setOwnerDocument( $doc );
	 $node->insertBefore( $newNode,	$refNode );
	 $node->insertAfter( $newNode, $refNode	);
	 @nodes	= $node->findnodes( $xpath_expression );
	 $result = $node->find(	$xpath );
	 print $node->findvalue( $xpath	);
	 $bool = $node->exists(	$xpath_expression );
	 @childnodes = $node->childNodes();
	 @childnodes = $node->nonBlankChildNodes();
	 $xmlstring = $node->toString($format,$docencoding);
	 $c14nstring = $node->toStringC14N();
	 $c14nstring = $node->toStringC14N($with_comments, $xpath_expression , $xpath_context);
	 $c14nstring = $node->toStringC14N_v1_1();
	 $c14nstring = $node->toStringC14N_v1_1($with_comments,	$xpath_expression , $xpath_context);
	 $ec14nstring =	$node->toStringEC14N();
	 $ec14nstring =	$node->toStringEC14N($with_comments, $xpath_expression,	$inclusive_prefix_list);
	 $ec14nstring =	$node->toStringEC14N($with_comments, $xpath_expression,	$xpath_context,	$inclusive_prefix_list);
	 $str =	$doc->serialize($format);
	 $localname = $node->localname;
	 $nameprefix = $node->prefix;
	 $uri =	$node->namespaceURI();
	 $boolean = $node->hasAttributes();
	 @attributelist	= $node->attributes();
	 $URI =	$node->lookupNamespaceURI( $prefix );
	 $prefix = $node->lookupNamespacePrefix( $URI );
	 $node->normalize;
	 @nslist = $node->getNamespaces;
	 $node->removeChildNodes();
	 $strURI = $node->baseURI();
	 $node->setBaseURI($strURI);
	 $node->nodePath();
	 $lineno = $node->line_number();

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

METHODS
       Many functions listed here are extensively documented in	the DOM	Level
       3 specification (<http://www.w3.org/TR/DOM-Level-3-Core/>). Please
       refer to	the specification for extensive	documentation.

       nodeName
	     $name = $node->nodeName;

	   Returns the node's name. This function is aware of namespaces and
	   returns the full name of the	current	node ("prefix:localname").

	   Since 1.62 this function also returns the correct DOM names for
	   node	types with constant names, namely: #text, #cdata-section,
	   #comment, #document,	#document-fragment.

       setNodeName
	     $node->setNodeName( $newName );

	   In very limited situations, it is useful to change a	nodes name. In
	   the DOM specification this should throw an error. This Function is
	   aware of namespaces.

       isSameNode
	     $bool = $node->isSameNode(	$other_node );

	   returns TRUE	(1) if the given nodes refer to	the same node
	   structure, otherwise	FALSE (0) is returned.

       isEqual
	     $bool = $node->isEqual( $other_node );

	   deprecated version of isSameNode().

	   NOTE	isEqual	will change behaviour to follow	the DOM	specification

       unique_key
	     $num = $node->unique_key;

	   This	function is not	specified for any DOM level. It	returns	a key
	   guaranteed to be unique for this node, and to always	be the same
	   value for this node.	In other words,	two node objects return	the
	   same	key if and only	if isSameNode indicates	that they are the same
	   node.

	   The returned	key value is useful as a key in	hashes.

       nodeValue
	     $content =	$node->nodeValue;

	   If the node has any content (such as	stored in a "text node") it
	   can get requested through this function.

	   NOTE: Element Nodes have no content per definition. To get the text
	   value of an Element use textContent() instead!

       textContent
	     $content =	$node->textContent;

	   this	function returns the content of	all text nodes in the
	   descendants of the given node as specified in DOM.

       nodeType
	     $type = $node->nodeType;

	   Return a numeric value representing the node	type of	this node. The
	   module XML::LibXML by default exports constants for the node	types
	   (see	the EXPORT section in the XML::LibXML manual page).

       unbindNode
	     $node->unbindNode();

	   Unbinds the Node from its siblings and Parent, but not from the
	   Document it belongs to. If the node is not inserted into the	DOM
	   afterwards, it will be lost after the program terminates. From a
	   low level view, the unbound node is stripped	from the context it is
	   and inserted	into a (hidden)	document-fragment.

       removeChild
	     $childnode	= $node->removeChild( $childnode );

	   This	will unbind the	Child Node from	its parent $node. The function
	   returns the unbound node. If	$childnode is not a child of the given
	   Node	the function will fail.

       replaceChild
	     $oldnode =	$node->replaceChild( $newNode, $oldNode	);

	   Replaces the	$oldNode with the $newNode. The	$oldNode will be
	   unbound from	the Node. This function	differs	from the DOM L2
	   specification, in the case, if the new node is not part of the
	   document, the node will be imported first.

       replaceNode
	     $node->replaceNode($newNode);

	   This	function is very similar to replaceChild(), but	it replaces
	   the node itself rather than a childnode. This is useful if a	node
	   found by any	XPath function,	should be replaced.

       appendChild
	     $childnode	= $node->appendChild( $childnode );

	   The function	will add the $childnode	to the end of $node's
	   children. The function should fail, if the new childnode is already
	   a child of $node. This function differs from	the DOM	L2
	   specification, in the case, if the new node is not part of the
	   document, the node will be imported first.

       addChild
	     $childnode	= $node->addChild( $childnode );

	   As an alternative to	appendChild() one can use the addChild()
	   function. This function is a	bit faster, because it avoids all DOM
	   conformity checks.  Therefore this function is quite	useful if one
	   builds XML documents	in memory where	the order and ownership
	   ("ownerDocument") is	assured.

	   addChild() uses libxml2's own xmlAddChild() function. Thus it has
	   to be used with extra care: If a text node is added to a node and
	   the node itself or its last childnode is as well a text node, the
	   node	to add will be merged with the one already available. The
	   current node	will be	removed	from memory after this action. Because
	   perl	is not aware of	this action, the perl instance is still
	   available. XML::LibXML will catch the loss of a node	and refuse to
	   run any function called on that node.

	     my	$t1 = $doc->createTextNode( "foo" );
	      my $t2 = $doc->createTextNode( "bar" );
	      $t1->addChild( $t2 );	  # is OK
	      my $val =	$t2->nodeValue(); # will fail, script dies

	   Also	addChild() will	not check if the added node belongs to the
	   same	document as the	node it	will be	added to. This could lead to
	   inconsistent	documents and in more worse cases even to memory
	   violations, if one does not keep track of this issue.

	   Although this sounds	like a lot of trouble, addChild() is useful if
	   a document is built from a stream, such as happens sometimes	in SAX
	   handlers or filters.

	   If you are not sure about the source	of your	nodes, you better stay
	   with	appendChild(), because this function is	more user friendly in
	   the sense of	being more error tolerant.

       addNewChild
	     $node = $parent->addNewChild( $nsURI, $name );

	   Similar to "addChild()", this function uses low level libxml2
	   functionality to provide faster interface for DOM building.
	   addNewChild() uses "xmlNewChild()" to create	a new node on a	given
	   parent element.

	   addNewChild() has two parameters $nsURI and $name, where $nsURI is
	   an (optional) namespace URI.	$name is the fully qualified element
	   name; addNewChild() will determine the correct prefix if necessary.

	   The function	returns	the newly created node.

	   This	function is very useful	for DOM	building, where	a created node
	   can be directly associated with its parent. NOTE this function is
	   not part of the DOM specification and its use will limit your code
	   to XML::LibXML.

       addSibling
	     $node->addSibling($newNode);

	   addSibling()	allows adding an additional node to the	end of a
	   nodelist, defined by	the given node.

       cloneNode
	     $newnode =$node->cloneNode( $deep );

	   cloneNode creates a copy of $node. When $deep is set	to 1 (true)
	   the function	will copy all child nodes as well.  If $deep is	0 only
	   the current node will be copied. Note that in case of element,
	   attributes are copied even if $deep is 0.

	   Note	that the behavior of this function for $deep=0 has changed in
	   1.62	in order to be consistent with the DOM spec (in	older versions
	   attributes and namespace information	was not	copied for elements).

       parentNode
	     $parentnode = $node->parentNode;

	   Returns simply the Parent Node of the current node.

       nextSibling
	     $nextnode = $node->nextSibling();

	   Returns the next sibling if any .

       nextNonBlankSibling
	     $nextnode = $node->nextNonBlankSibling();

	   Returns the next non-blank sibling if any (a	node is	blank if it is
	   a Text or CDATA node	consisting of whitespace only).	This method is
	   not defined by DOM.

       previousSibling
	     $prevnode = $node->previousSibling();

	   Analogous to	getNextSibling the function returns the	previous
	   sibling if any.

       previousNonBlankSibling
	     $prevnode = $node->previousNonBlankSibling();

	   Returns the previous	non-blank sibling if any (a node is blank if
	   it is a Text	or CDATA node consisting of whitespace only). This
	   method is not defined by DOM.

       hasChildNodes
	     $boolean =	$node->hasChildNodes();

	   If the current node has child nodes this function returns TRUE (1),
	   otherwise it	returns	FALSE (0, not undef).

       firstChild
	     $childnode	= $node->firstChild;

	   If a	node has child nodes this function will	return the first node
	   in the child	list.

       lastChild
	     $childnode	= $node->lastChild;

	   If the $node	has child nodes	this function returns the last child
	   node.

       ownerDocument
	     $documentnode = $node->ownerDocument;

	   Through this	function it is always possible to access the document
	   the current node is bound to.

       getOwner
	     $node = $node->getOwner;

	   This	function returns the node the current node is associated with.
	   In most cases this will be a	document node or a document fragment
	   node.

       setOwnerDocument
	     $node->setOwnerDocument( $doc );

	   This	function binds a node to another DOM. This method unbinds the
	   node	first, if it is	already	bound to another document.

	   This	function is the	opposite calling of XML::LibXML::Document's
	   adoptNode() function. Because of this it has	the same limitations
	   with	Entity References as adoptNode().

       insertBefore
	     $node->insertBefore( $newNode, $refNode );

	   The method inserts $newNode before $refNode.	If $refNode is
	   undefined, the newNode will be set as the new last child of the
	   parent node.	 This function differs from the	DOM L2 specification,
	   in the case,	if the new node	is not part of the document, the node
	   will	be imported first, automatically.

	   $refNode has	to be passed to	the function even if it	is undefined:

	     $node->insertBefore( $newNode, undef ); # the same	as $node->appendChild( $newNode	);
	      $node->insertBefore( $newNode ); # wrong

	   Note, that the reference node has to	be a direct child of the node
	   the function	is called on. Also, $newChild is not allowed to	be an
	   ancestor of the new parent node.

       insertAfter
	     $node->insertAfter( $newNode, $refNode );

	   The method inserts $newNode after $refNode. If $refNode is
	   undefined, the newNode will be set as the new last child of the
	   parent node.

	   Note, that $refNode has to be passed	explicitly even	if it is
	   undef.

       findnodes
	     @nodes = $node->findnodes(	$xpath_expression );

	   findnodes evaluates the xpath expression (XPath 1.0)	on the current
	   node	and returns the	resulting node set as an array.	In scalar
	   context, returns an XML::LibXML::NodeList object.

	   The xpath expression	can be passed either as	a string, or as	a
	   XML::LibXML::XPathExpression	object.

	   NOTE	ON NAMESPACES AND XPATH:

	   A common mistake about XPath	is to assume that node tests
	   consisting of an element name with no prefix	match elements in the
	   default namespace. This assumption is wrong - by XPath
	   specification, such node tests can only match elements that are in
	   no (i.e. null) namespace.

	   So, for example, one	cannot match the root element of an XHTML
	   document with "$node->find('/html')"	since '/html' would only match
	   if the root element "<html>"	had no namespace, but all XHTML
	   elements belong to the namespace http://www.w3.org/1999/xhtml.
	   (Note that "xmlns="..."" namespace declarations can also be
	   specified in	a DTD, which makes the situation even worse, since the
	   XML document	looks as if there was no default namespace).

	   There are several possible ways to deal with	namespaces in XPath:

	   o   The recommended way is to use the XML::LibXML::XPathContext
	       module to define	an explicit context for	XPath evaluation, in
	       which a document	independent prefix-to-namespace	mapping	can be
	       defined.	For example:

		 my $xpc = XML::LibXML::XPathContext->new;
		 $xpc->registerNs('x', 'http://www.w3.org/1999/xhtml');
		 $xpc->find('/x:html',$node);

	   o   Another possibility is to use prefixes declared in the queried
	       document	(if known). If the document declares a prefix for the
	       namespace in question (and the context node is in the scope of
	       the declaration), "XML::LibXML" allows you to use the prefix in
	       the XPath expression, e.g.:

		 $node->find('/x:html');

	   See also XML::LibXML::XPathContext->findnodes.

       find
	     $result = $node->find( $xpath );

	   find	evaluates the XPath 1.0	expression using the current node as
	   the context of the expression, and returns the result depending on
	   what	type of	result the XPath expression had. For example, the
	   XPath "1 * 3	+ 52" results in a XML::LibXML::Number object being
	   returned. Other expressions might return an XML::LibXML::Boolean
	   object, or an XML::LibXML::Literal object (a	string). Each of those
	   objects uses	Perl's overload	feature	to "do the right thing"	in
	   different contexts.

	   The xpath expression	can be passed either as	a string, or as	a
	   XML::LibXML::XPathExpression	object.

	   See also XML::LibXML::XPathContext->find.

       findvalue
	     print $node->findvalue( $xpath );

	   findvalue is	exactly	equivalent to:

	     $node->find( $xpath )->to_literal;

	   That	is, it returns the literal value of the	results. This enables
	   you to ensure that you get a	string back from your search, allowing
	   certain shortcuts.  This could be used as the equivalent of XSLT's
	   <xsl:value-of select="some_xpath"/>.

	   See also XML::LibXML::XPathContext->findvalue.

	   The xpath expression	can be passed either as	a string, or as	a
	   XML::LibXML::XPathExpression	object.

       exists
	     $bool = $node->exists( $xpath_expression );

	   This	method behaves like findnodes, except that it only returns a
	   boolean value (1 if the expression matches a	node, 0	otherwise) and
	   may be faster than findnodes, because the XPath evaluation may stop
	   early on the	first match (this is true for libxml2 >= 2.6.27).

	   For XPath expressions that do not return node-set, the method
	   returns true	if the returned	value is a non-zero number or a	non-
	   empty string.

       childNodes
	     @childnodes = $node->childNodes();

	   childNodes implements a more	intuitive interface to the childnodes
	   of the current node.	It enables you to pass all children directly
	   to a	"map" or "grep". If this function is called in scalar context,
	   a XML::LibXML::NodeList object will be returned.

       nonBlankChildNodes
	     @childnodes = $node->nonBlankChildNodes();

	   This	is like	childNodes, but	returns	only non-blank nodes (where a
	   node	is blank if it is a Text or CDATA node consisting of
	   whitespace only). This method is not	defined	by DOM.

       toString
	     $xmlstring	= $node->toString($format,$docencoding);

	   This	method is similar to the method	"toString" of a
	   XML::LibXML::Document but for a single node.	It returns a string
	   consisting of XML serialization of the given	node and all its
	   descendants.	Unlike "XML::LibXML::Document::toString", in this case
	   the resulting string	is by default a	character string (UTF-8
	   encoded with	UTF8 flag on). An optional flag	$format	controls
	   indentation,	as in "XML::LibXML::Document::toString". If the	second
	   optional $docencoding flag is true, the result will be a byte
	   string in the document encoding (see
	   "XML::LibXML::Document::actualEncoding").

       toStringC14N
	     $c14nstring = $node->toStringC14N();
	     $c14nstring = $node->toStringC14N($with_comments, $xpath_expression , $xpath_context);

	   The function	is similar to toString(). Instead of simply
	   serializing the document tree, it transforms	it as it is specified
	   in the XML-C14N Specification (see
	   <http://www.w3.org/TR/xml-c14n>). Such transformation is known as
	   canonization.

	   If $with_comments is	0 or not defined, the result-document will not
	   contain any comments	that exist in the original document. To
	   include comments into the canonized document, $with_comments	has to
	   be set to 1.

	   The parameter $xpath_expression defines the nodeset of nodes	that
	   should be visible in	the resulting document.	This can be used to
	   filter out some nodes.  One has to note, that only the nodes	that
	   are part of the nodeset, will be included into the result-document.
	   Their child-nodes will not exist in the resulting document, unless
	   they	are part of the	nodeset	defined	by the xpath expression.

	   If $xpath_expression	is omitted or empty, toStringC14N() will
	   include all nodes in	the given sub-tree, using the following	XPath
	   expressions:	with comments

	     (.	| .//node() | .//@* | .//namespace::*)

	   and without comments

	     (.	| .//node() | .//@* | .//namespace::*)[not(self::comment())]

	   An optional parameter $xpath_context	can be used to pass an
	   XML::LibXML::XPathContext object defining the context for
	   evaluation of $xpath_expression. This is useful for mapping
	   namespace prefixes used in the XPath	expression to namespace	URIs.
	   Note, however, that $node will be used as the context node for the
	   evaluation, not the context node of $xpath_context!

       toStringC14N_v1_1
	     $c14nstring = $node->toStringC14N_v1_1();
	     $c14nstring = $node->toStringC14N_v1_1($with_comments, $xpath_expression ,	$xpath_context);

	   This	function behaves like toStringC14N() except that it uses the
	   "XML_C14N_1_1" constant for canonicalising using the	"C14N 1.1
	   spec".

       toStringEC14N
	     $ec14nstring = $node->toStringEC14N();
	     $ec14nstring = $node->toStringEC14N($with_comments, $xpath_expression, $inclusive_prefix_list);
	     $ec14nstring = $node->toStringEC14N($with_comments, $xpath_expression, $xpath_context, $inclusive_prefix_list);

	   The function	is similar to toStringC14N() but follows the
	   XML-EXC-C14N	Specification (see
	   <http://www.w3.org/TR/xml-exc-c14n>)	for exclusive canonization of
	   XML.

	   The arguments $with_comments, $xpath_expression, $xpath_context are
	   as in toStringC14N(). An ARRAY reference can	be passed as the last
	   argument $inclusive_prefix_list, listing namespace prefixes that
	   are to be handled in	the manner described by	the Canonical XML
	   Recommendation (i.e.	preserved in the output	even if	the namespace
	   is not used). C.f. the spec for details.

       serialize
	     $str = $doc->serialize($format);

	   An alias for	toString(). This function was name added to be more
	   consistent with libxml2.

       serialize_c14n
	   An alias for	toStringC14N().

       serialize_exc_c14n
	   An alias for	toStringEC14N().

       localname
	     $localname	= $node->localname;

	   Returns the local name of a tag. This is the	part behind the	colon.

       prefix
	     $nameprefix = $node->prefix;

	   Returns the prefix of a tag.	This is	the part before	the colon.

       namespaceURI
	     $uri = $node->namespaceURI();

	   returns the URI of the current namespace.

       hasAttributes
	     $boolean =	$node->hasAttributes();

	   returns 1 (TRUE) if the current node	has any	attributes set,
	   otherwise 0 (FALSE) is returned.

       attributes
	     @attributelist = $node->attributes();

	   This	function returns all attributes	and namespace declarations
	   assigned to the given node.

	   Because XML::LibXML does not	implement namespace declarations and
	   attributes the same way, it is required to test what	kind of	node
	   is handled while accessing the functions result.

	   If this function is called in array context the attribute nodes are
	   returned as an array. In scalar context, the	function will return a
	   XML::LibXML::NamedNodeMap object.

       lookupNamespaceURI
	     $URI = $node->lookupNamespaceURI( $prefix );

	   Find	a namespace URI	by its prefix starting at the current node.

       lookupNamespacePrefix
	     $prefix = $node->lookupNamespacePrefix( $URI );

	   Find	a namespace prefix by its URI starting at the current node.

	   NOTE	Only the namespace URIs	are meant to be	unique.	The prefix is
	   only	document related. Also the document might have more than a
	   single prefix defined for a namespace.

       normalize
	     $node->normalize;

	   This	function normalizes adjacent text nodes. This function is not
	   as strict as	libxml2's xmlTextMerge() function, since it will not
	   free	a node that is still referenced	by the perl layer.

       getNamespaces
	     @nslist = $node->getNamespaces;

	   If a	node has any namespaces	defined, this function will return
	   these namespaces. Note, that	this will not return all namespaces
	   that	are in scope, but only the ones	declared explicitly for	that
	   node.

	   Although getNamespaces is available for all nodes, it only makes
	   sense if used with element nodes.

       removeChildNodes
	     $node->removeChildNodes();

	   This	function is not	specified for any DOM level: It	removes	all
	   childnodes from a node in a single step. Other than the libxml2
	   function itself (xmlFreeNodeList), this function will not
	   immediately remove the nodes	from the memory. This saves one	from
	   getting memory violations, if there are nodes still referred	to
	   from	the Perl level.

       baseURI ()
	     $strURI = $node->baseURI();

	   Searches for	the base URL of	the node. The method should work on
	   both	XML and	HTML documents even if base mechanisms for these are
	   completely different. It returns the	base as	defined	in RFC 2396
	   sections "5.1.1. Base URI within Document Content" and "5.1.2. Base
	   URI from the	Encapsulating Entity". However it does not return the
	   document base (5.1.3), use method "URI" of "XML::LibXML::Document"
	   for this.

       setBaseURI ($strURI)
	     $node->setBaseURI($strURI);

	   This	method only does something useful for an element node in an
	   XML document.  It sets the xml:base attribute on the	node to
	   $strURI, which effectively sets the base URI	of the node to the
	   same	value.

	   Note: For HTML documents this behaves as if the document was	XML
	   which may not be desired, since it does not effectively set the
	   base	URI of the node. See RFC 2396 appendix D for an	example	of how
	   base	URI can	be specified in	HTML.

       nodePath
	     $node->nodePath();

	   This	function is not	specified for any DOM level: It	returns	a
	   canonical structure based XPath for a given node.

       line_number
	     $lineno = $node->line_number();

	   This	function returns the line number where the tag was found
	   during parsing.  If a node is added to the document the line	number
	   is 0. Problems may occur, if	a node from one	document is passed to
	   another one.

	   IMPORTANT: Due to limitations in the	libxml2	library	line numbers
	   greater than	65535 will be returned as 65535. Please	see
	   <http://bugzilla.gnome.org/show_bug.cgi?id=325533> for more
	   details.

	   Note: line_number() is special to XML::LibXML and not part of the
	   DOM specification.

	   If the line_numbers flag of the parser was not activated before
	   parsing, line_number() will always return 0.

AUTHORS
       Matt Sergeant, Christian	Glahn, Petr Pajas

VERSION
       2.0206

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.

perl v5.32.1			  2020-09-15		  XML::LibXML::Node(3)

NAME | SYNOPSIS | DESCRIPTION | METHODS | AUTHORS | VERSION | COPYRIGHT | LICENSE

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