1XML::LibXML::Attr(3) User Contributed Perl Documentation XML::LibXML::Attr(3)
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6 XML::LibXML::Attr - XML::LibXML Attribute Class
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9 use XML::LibXML;
10 # Only methods specific to Attribute nodes are listed here,
11 # see the XML::LibXML::Node manpage for other methods
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13 $attr = XML::LibXML::Attr->new($name [,$value]);
14 $string = $attr->getValue();
15 $string = $attr->value;
16 $attr->setValue( $string );
17 $node = $attr->getOwnerElement();
18 $attr->setNamespace($nsURI, $prefix);
19 $bool = $attr->isId;
20 $string = $attr->serializeContent;
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23 This is the interface to handle Attributes like ordinary nodes. The
24 naming of the class relies on the W3C DOM documentation.
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27 The class inherits from XML::LibXML::Node. The documentation for
28 Inherited methods is not listed here.
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30 Many functions listed here are extensively documented in the DOM Level
31 3 specification (<http://www.w3.org/TR/DOM-Level-3-Core/>). Please
32 refer to the specification for extensive documentation.
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34 new
35 $attr = XML::LibXML::Attr->new($name [,$value]);
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37 Class constructor. If you need to work with ISO encoded strings,
38 you should always use the "createAttribute" of
39 XML::LibXML::Document.
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41 getValue
42 $string = $attr->getValue();
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44 Returns the value stored for the attribute. If undef is returned,
45 the attribute has no value, which is different of being "not
46 specified".
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48 value
49 $string = $attr->value;
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51 Alias for getValue()
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53 setValue
54 $attr->setValue( $string );
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56 This is needed to set a new attribute value. If ISO encoded strings
57 are passed as parameter, the node has to be bound to a document,
58 otherwise the encoding might be done incorrectly.
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60 getOwnerElement
61 $node = $attr->getOwnerElement();
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63 returns the node the attribute belongs to. If the attribute is not
64 bound to a node, undef will be returned. Overwriting the underlying
65 implementation, the parentNode function will return undef, instead
66 of the owner element.
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68 setNamespace
69 $attr->setNamespace($nsURI, $prefix);
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71 This function tries to bound the attribute to a given namespace. If
72 $nsURI is undefined or empty, the function discards any previous
73 association of the attribute with a namespace. If the namespace was
74 not previously declared in the context of the attribute, this
75 function will fail. In this case you may wish to call
76 setNamespace() on the ownerElement. If the namespace URI is non-
77 empty and declared in the context of the attribute, but only with a
78 different (non-empty) prefix, then the attribute is still bound to
79 the namespace but gets a different prefix than $prefix. The
80 function also fails if the prefix is empty but the namespace URI is
81 not (because unprefixed attributes should by definition belong to
82 no namespace). This function returns 1 on success, 0 otherwise.
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84 isId
85 $bool = $attr->isId;
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87 Determine whether an attribute is of type ID. For documents with a
88 DTD, this information is only available if DTD loading/validation
89 has been requested. For HTML documents parsed with the HTML parser
90 ID detection is done automatically. In XML documents, all "xml:id"
91 attributes are considered to be of type ID.
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93 serializeContent($docencoding)
94 $string = $attr->serializeContent;
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96 This function is not part of DOM API. It returns attribute content
97 in the form in which it serializes into XML, that is with all meta-
98 characters properly quoted and with raw entity references (except
99 for entities expanded during parse time). Setting the optional
100 $docencoding flag to 1 enforces document encoding for the output
101 string (which is then passed to Perl as a byte string). Otherwise
102 the string is passed to Perl as (UTF-8 encoded) characters.
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105 Matt Sergeant, Christian Glahn, Petr Pajas
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108 2.0208
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111 2001-2007, AxKit.com Ltd.
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113 2002-2006, Christian Glahn.
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115 2006-2009, Petr Pajas.
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118 This program is free software; you can redistribute it and/or modify it
119 under the same terms as Perl itself.
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123perl v5.36.0 2022-09-30 XML::LibXML::Attr(3)