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revision 1.8 by wakaba, Sun Dec 2 10:20:25 2007 UTC revision 1.13 by wakaba, Mon Dec 3 11:57:22 2007 UTC
# Line 10  Line 10 
10    
11  <div class="header">  <div class="header">
12  <h1>DOM Document Type Definition Module</h1>  <h1>DOM Document Type Definition Module</h1>
13  <h2>Working Draft <time datetime=2007-12-01>1 December 2007</time></h2>  <h2>Working Draft <time datetime=2007-12-03>3 December 2007</time></h2>
14    
15  <dl class="versions-uri">  <dl class="versions-uri">
16  <dt>This Version</dt>  <dt>This Version</dt>
# Line 125  raised is undefined.</p> Line 125  raised is undefined.</p>
125  interface.</p>  interface.</p>
126    
127  <p class=ed>@@ ref to DOM Binding Spec</p>  <p class=ed>@@ ref to DOM Binding Spec</p>
128    
129    <p>If the <code>strictErrorChecking</code> attribute of the
130    <code>Document</code> node is <code>false</code>, the methods are
131    not required to raise exceptions <span class=ed>[DOM3]</span>.</p>
132  </div>  </div>
133    
134  <div class=section id=dom-dtdef>  <div class=section id=dom-dtdef>
# Line 139  consists of three interfaces:</p> Line 143  consists of three interfaces:</p>
143  <li><a href="#AttributeDefinition"><code>AttributeDefinition</code></a></li>  <li><a href="#AttributeDefinition"><code>AttributeDefinition</code></a></li>
144  </ul>  </ul>
145    
146  <p>In addition, it adds methods, attributes, and/or constants to interfaces  <p>In addition, it modifies interfaces
147  <a href="#Node"><code>Node</code></a>,  <a href="#Node"><code>Node</code></a>,
148    <a href="#DocumentType"><code>DocumentType</code></a>,
149  <a href="#Entity"><code>Entity</code></a>,  <a href="#Entity"><code>Entity</code></a>,
150  <a href="#EntityReference"><code>EntityReference</code></a>, and  <a href="#EntityReference"><code>EntityReference</code></a>,
151  <a href="#Notation"><code>Notation</code></a>.  <a href="#Notation"><code>Notation</code></a>, and
152  It modifies semantics of some of methods and attributes in  <a href="#ProcessingInstruction"><code>ProcessingInstruction</code></a>.</p>
 <a href="#Node"><code>Node</code></a> and  
 <a href="#ProcessingInstruction"><code>ProcessingInstruction</code></a>  
 interfaces, for the support of new interfaces.</p>  
153    
154  <div class=section id=features>  <div class=section id=features>
155  <h3>Feature Name</h3>  <h3>Feature Name</h3>
# Line 179  aforementioned cases.</p> Line 181  aforementioned cases.</p>
181    DocumentType <a href="#createDocumentTypeDefinition">createDocumentTypeDefinition</a>    DocumentType <a href="#createDocumentTypeDefinition">createDocumentTypeDefinition</a>
182      (in DOMString <a href="#createDocumentTypeDefinition-name"><var>name</var></a>)      (in DOMString <a href="#createDocumentTypeDefinition-name"><var>name</var></a>)
183      raises (DOMException);      raises (DOMException);
184    ElementTypeDefinition <a href="#createElementTypeDefinition">createElementTypeDefinition</a>    <a href="#ElementTypeDefinition">ElementTypeDefinition</a> <a href="#createElementTypeDefinition">createElementTypeDefinition</a>
185      (in DOMString <a href="#createElementTypeDefinition-name"><var>name</var></a>)      (in DOMString <a href="#createElementTypeDefinition-name"><var>name</var></a>)
186      raises (DOMException);      raises (DOMException);
187    AttributeDefinition <a href="#createAttributeDefinition">createAttributeDefinition</a>    <a href="#AttributeDefinition">AttributeDefinition</a> <a href="#createAttributeDefinition">createAttributeDefinition</a>
188      (in DOMString <a href="#createAttributeDefinition-name"><var>name</var></a>)      (in DOMString <a href="#createAttributeDefinition-name"><var>name</var></a>)
189      raises (DOMException);      raises (DOMException);
190    Entity <a href="#createGeneralEntity">createGeneralEntityDefinition</a>    <a href="#Entity">Entity</a> <a href="#createGeneralEntity">createGeneralEntityDefinition</a>
191      (in DOMString <a href="#createGeneralEntity-name"><var>name</var></a>)      (in DOMString <a href="#createGeneralEntity-name"><var>name</var></a>)
192      raises (DOMException);      raises (DOMException);
193    Notation <a href="#createNotation">createNotation</a>    <a href="#Notation">Notation</a> <a href="#createNotation">createNotation</a>
194      (in DOMString <a href="#createNotation-name"><var>name</var></a>)      (in DOMString <a href="#createNotation-name"><var>name</var></a>)
195      raises (DOMException);      raises (DOMException);
196  }</code></pre>  }</code></pre>
# Line 399  since <abbr>DOM3</abbr> specification <s Line 401  since <abbr>DOM3</abbr> specification <s
401  define it for <code>Document</code> methods.</p>  define it for <code>Document</code> methods.</p>
402    
403  <p><var>name</var> does not have to be a namespace qualified name.</p>  <p><var>name</var> does not have to be a namespace qualified name.</p>
   
 <p>If the <code>strictErrorChecking</code> attribute of the  
 <code>Document</code> node is <code>false</code>, the methods are  
 not required to raise the exception <span class=ed>[DOM3]</span>.</p>  
404  </div>  </div>
405    
406  </div>  </div>
# Line 415  not required to raise the exception <spa Line 413  not required to raise the exception <spa
413    readonly attribute NamedNodeMap <a href="#generalEntities">generalEntities</a>;    readonly attribute NamedNodeMap <a href="#generalEntities">generalEntities</a>;
414    readonly attribute NamedNodeMap <a href="#notations">notations</a>;    readonly attribute NamedNodeMap <a href="#notations">notations</a>;
415    
416    <span class=ed>more members come here...</span>    <a href="#ElementTypeDefinition">ElementTypeDefinition</a> <a href="#getElementTypeDefinitionNode">getElementTypeDefinitionNode</a>
417        (in DOMString <a href="#getElementTypeDefinitionNode-name"><var>name</var></a>);
418      <a href="#Entity">Entity</a> <a href="#getGeneralEntityNode">getGeneralEntityNode</a>
419        (in DOMString <a href="#getGeneralEntityNode-name"><var>name</var></a>);
420      <a href="#Notation">Notation</a> <a href="#getNotationNode">getNotationNode</a>
421        (in DOMString <a href="#getNotationNode-name"><var>name</var></a>);
422    
423      void <a href="#setElementTypeDefinitionNode">setElementTypeDefinitionNode</a>
424        (in DOMString <a href="#setElementTypeDefinitionNode-node"><var>node</var></a>)
425        raises (DOMException);
426      void <a href="#setGeneralEntityNode">setGeneralEntityNode</a>
427        (in DOMString <a href="#setGeneralEntityNode-node"><var>node</var></a>)
428        raises (DOMException);
429      void <a href="#setNotationNode">setNotationNode</a>
430        (in DOMString <a href="#setNotationNode-node"><var>node</var></a>)
431        raises (DOMException);
432  }</code></pre>  }</code></pre>
433    
434  <pre class=ed>  <pre class=ed>
# Line 542  reflected by that of the object. Line 555  reflected by that of the object.
555  <div class=section id=section-elementtypedefinition>  <div class=section id=section-elementtypedefinition>
556  <h3>The <code>ElementTypeDefinition</code> Interface</h3>  <h3>The <code>ElementTypeDefinition</code> Interface</h3>
557    
558  <pre class=idl><code>interface <dfn id=ElementTypeDefinition><code>ElementTypeDefinition</code></dfn> {  <pre class=idl><code>interface <dfn id=ElementTypeDefinition><code>ElementTypeDefinition</code></dfn> : <a href="#Node">Node</a> {
559        readonly attribute <a href="#ownerDocumentTypeDefinition">ownerDocumentTypeDefinition</a>;
560    
561      <span class=ed>@@ more</span>
562  }</code></pre>  }</code></pre>
563    
564  <pre class=ed>** Modifications to [CODE(DOMi)@en[[[Node]]]] members  <pre class=ed>** Modifications to [CODE(DOMi)@en[[[Node]]]] members
# Line 586  interface is defined in [[manakai//DOM E Line 601  interface is defined in [[manakai//DOM E
601  <div class=section id=section-attributedefinition>  <div class=section id=section-attributedefinition>
602  <h3>The <code>AttributeDefinition</code> Interface</h3>  <h3>The <code>AttributeDefinition</code> Interface</h3>
603    
604  <pre class=idl><code>interface <dfn id=AttributeDefinition><code>AttributeDefinition</code></dfn> {  <pre class=idl><code>interface <dfn id=AttributeDefinition><code>AttributeDefinition</code></dfn> : <a href="#Node">Node</a> {
605      <span class=comment>// <a href="#DeclaredValueType">DeclaredValueType</a></span>
606      const unsigned short <a href="#NO_TYPE_ATTR">NO_TYPE_ATTR</a> = 0;
607      const unsigned short <a href="#CDATA_ATTR">CDATA_ATTR</a> = 1;
608      const unsigned short <a href="#ID_ATTR">ID_ATTR</a> = 2;
609      const unsigned short <a href="#IDREF_ATTR">IDREF_ATTR</a> = 3;
610      const unsigned short <a href="#IDREFS_ATTR">IDREFS_ATTR</a> = 4;
611      const unsigned short <a href="#ENTITY_ATTR">ENTITY_ATTR</a> = 5;
612      const unsigned short <a href="#ENTITIES_ATTR">ENTITIES_ATTR</a> = 6;
613      const unsigned short <a href="#NMTOKEN_ATTR">NMTOKEN_ATTR</a> = 7;
614      const unsigned short <a href="#NMTOKENS_ATTR">NMTOKENS_ATTR</a> = 8;
615      const unsigned short <a href="#NOTATION_ATTR">NOTATION_ATTR</a> = 9;
616      const unsigned short <a href="#ENUMERATION_ATTR">ENUMERATION_ATTR</a> = 10;
617      const unsigned short <a href="#UNKNOWN_ATTR">UNKNOWN_ATTR</a> = 11;
618        
619      readonly attribute <a href="#ElementTypeDefinition">ElementTypeDefinition</a> <a href="#ownerElementTypeDefinition">ownerElementTypeDefinition</a>;
620    
621      readonly attribute unsigned short <a href="#declaredType">declaredType</a>;
622      readonly attribute unsigned short <a href="#defaultType">defaultType</a>;
623    
624      <span class=ed>...</span>
625  }</code></pre>  }</code></pre>
626    
627  <pre class=ed>** Modifications to [CODE(DOMi)@en[[[Node]]]] members  <pre class=ed>** Modifications to [CODE(DOMi)@en[[[Node]]]] members
# Line 631  object is read-only, then throw an Line 665  object is read-only, then throw an
665  then create a [CODE(DOMi)@en[[[Text]]]] node  then create a [CODE(DOMi)@en[[[Text]]]] node
666  whose [CODE(DOMa)@en[[[data]]]] is the new value  whose [CODE(DOMa)@en[[[data]]]] is the new value
667  and append it to the [CODE(DOMi)@en[[[AttributeDefinition]]]].  and append it to the [CODE(DOMi)@en[[[AttributeDefinition]]]].
668    </pre>
669    
670    <dl>
671    <dt><dfn id=ownerElementTypeDefinition class=dom-attr><code>ownerElementTypeDefinition</code></dfn>
672    of type
673    <a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a>,
674    read$B!>(Bonly</dt>
675      <dd><p>The
676      <a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a> to
677      which the <a href="#AttributeDefinition"><code>AttributeDefinition</code></a>
678      node belongs.</p>
679    
680      <p>On getting, the attribute <em class=rfc2119>MUST</em> return an
681      <a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a> node.
682      It <em class=rfc2119>MUST</em> be such a node that whose
683      <a href="#attributeDefinitons"><code>attributeDefinitions</code></a>
684      attribute contains the <code>NamedNodeMap</code> object that contains
685      the <a href="#AttributeDefinition"><code>AttributeDefinition</code></a>
686      node.  If there is no such an
687      <a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a> node,
688      then <code>null</code> <em class=rfc2119>MUST</em> be returned.</p>
689    <dt><dfn id=declaredType class=dom-attr><code>declaredType</code></dfn> of type
690    <code>unsigned short</code></dt>
691      <dd><p>The declared type <span class=ed>@@ ref</span> of the attribute.
692      It is expected that this attribute contains a value from the definition group
693      <a href="#DeclaredValueType"><code>DeclaredValueType</code></a>.</p>
694    
695      <p>On getting, the attribute <em class=rfc2119>MUST</em> return the
696      value associated to this attribute.</p>
697    
698      <p>On setting, the attribute <em class=rfc2119>MUST</em> raise a
699      <code>NO_MODIFICATION_ALLOWED_ERR</code> <span class=ed>@@ ref</span>
700      exception if the
701      <a href="#AttributeDefinition"><code>AttributeDefinition</code></a> node
702      is read$B!>(Bonly <span class=ed>@@ ref</span>.  Otherwise, it
703      <em class=rfc2119>MUST</em> set the specified value as the value
704      associated to this attribute.</p>
705    
706      <p>If the <code>AttributeDefinition</code> node is created during the process
707      to create a <abbr>DOM</abbr> from an <abbr>XML</abbr> document, an
708      appropriate value from the
709      <a href="#DeclaredValueType"><code>DeclaredValueType</code></a> constant
710      group <em class=rfc2119>MUST</em> be set to the attribute.</p>
711    
712      <!-- DeclaredValueType -->
713    <p>The definition group
714    <dfn id=DeclaredValueType><code>DeclaredValueType</code></dfn> contains
715    integers indicating the declared type of attributes.  The definition
716    group contains the following constants:</p>
717    
718    <table>
719    <thead>
720    <tr><th scope=col>Name<th scope=col>Value<th scope=col>Description</tr>
721    </thead>
722    <tbody>
723    <tr>
724    <th scope=row><dfn id=NO_TYPE_ATTR class=dom-const><code>NO_TYPE_ATTR</code>
725    <td><code>0</code><td>No value <span class=ed>[INFOSET]</span>.</tr>
726    <tr>
727    <th scope=row><dfn id=CDATA_ATTR class=dom-const><code>CDATA_ATTR</code>
728    <td><code>1</code><td><code>CDATA</code> <span class=ed>[XML]</span>.</tr>
729    <tr>
730    <th scope=row><dfn id=ID_ATTR class=dom-const><code>ID_ATTR</code>
731    <td><code>2</code><td><code>ID</code> <span class=ed>[XML]</span>.</tr>
732    <tr>
733    <th scope=row><dfn id=IDREF_ATTR class=dom-const><code>IDREF_ATTR</code>
734    <td><code>3</code><td><code>IDREF</code> <span class=ed>[XML]</span>.</tr>
735    <tr>
736    <th scope=row><dfn id=IDREFS_ATTR class=dom-const><code>IDREFS_ATTR</code>
737    <td><code>4</code><td><code>IDREFS</code> <span class=ed>[XML]</span>.</tr>
738    <tr>
739    <th scope=row><dfn id=ENTITY_ATTR class=dom-const><code>ENTITY_ATTR</code>
740    <td><code>5</code><td><code>ENTITY</code> <span class=ed>[XML]</span>.</tr>
741    <tr>
742    <th scope=row><dfn id=ENTITIES_ATTR class=dom-const><code>ENTITIES_ATTR</code>
743    <td><code>6</code><td><code>ENTITIES</code> <span class=ed>[XML]</span>.</tr>
744    <tr>
745    <th scope=row><dfn id=NMTOKEN_ATTR class=dom-const><code>NMTOKEN_ATTR</code>
746    <td><code>7</code><td><code>NMTOKEN</code> <span class=ed>[XML]</span>.</tr>
747    <tr>
748    <th scope=row><dfn id=NMTOKENS_ATTR class=dom-const><code>NMTOKENS_ATTR</code>
749    <td><code>8</code><td><code>NMTOKENS</code> <span class=ed>[XML]</span>.</tr>
750    <tr>
751    <th scope=row><dfn id=NOTATION_ATTR class=dom-const><code>NOTATION_ATTR</code>
752    <td><code>9</code><td><code>NOTATION</code> <span class=ed>[XML]</span>.</tr>
753    <tr>
754    <th scope=row><dfn id=ENUMERATION_ATTR class=dom-const><code>ENUMERATION_ATTR</code>
755    <td><code>10</code><td>Enumeration <span class=ed>[XML]</span>.</tr>
756    <tr>
757    <th scope=row><dfn id=UNKNOWN_ATTR class=dom-const><code>UNKNOWN_ATTR</code>
758    <td><code>11</code><td>Unknown, because no declaration for the attribute
759    has been read but the [all declaration processed] property
760    <span class=ed>[INFOSET]</span> would be false.</tr>
761    </tbody>
762    </table>
763    
764    <p>If no attribute type information is available, or if the source
765    of the information does not distinguish <q>no value</q> and <q>unknown</q>
766    <span class=ed>[INFOSET]</span>, then the value
767    <a href="#NO_TYPE_ATTR"><code>NO_TYPE_ATTR</code></a>
768    <em class=rfc2119>MUST</em> be used.</p>
769    
770    <div class="note memo">
771    <p>An <a href="#AttributeDefinition"><code>AttributeDefinition</code></a> node
772    created by the
773    <a href="#createAttributeDefinition"><code>createAttributeDefinition</code></a>
774    method has its <a href="#declaredType"><code>declaredType</code></a> attribute
775    set to <a href="#NO_TYPE_ATTR"><code>NO_TYPE_ATTR</code></a>.</p>
776    </div>
777    
778    <p>If the source of the information does not distinguish <q>no value</q>
779    and/or <q>unknown</q> <span class=ed>[INFOSET]</span> and
780    <code>CDATA</code> <span class=ed>[XML]</span>, then the value
781    <a href="#CDATA_ATTR"><code>CDATA_ATTR</code></a> <em class=rfc2119>MUST</em>
782    be used.</p>
783    
784    <p>In Perl binding <span class=ed>[PERLBINDING]</span>, the
785    <code>Attr</code> nodes <em class=rfc2119>MUST</em> implement the
786    <a href="#DeclaredValueType"><code>DeclaredValueType</code></a>
787    definition group.</p>
788    
789      </dd>
790    <dt><dfn id=defaultType class=dom-attr><code>defaultType</code></dfn> of
791    type <code>unsigned short</code></dt>
792      <dd><p>The type of the default for the attribute.  It is expected that this
793      attribute contains a value from the definition group
794      <a href="#DefaultValueType"><code>DefaultValueType</code></a>.</p>
795    
796      <p>On getting, the attribute <em class=rfc2119>MUST</em> return
797      the value associated to this attribute.</p>
798    
799      <p>On setting, the attribute <em class=rfc2119>MUST</em> raise a
800      <code>NO_MODIFICATION_ALLOWED_ERR</code> <span class=ed>@@ ref</span>
801      exception if the
802      <a href="#AttributeDefinition"><code>AttributeDefinition</code></a> node
803      is read$B!>(Bonly <span class=ed>@@ ref</span>.  Otherwise, it
804      <em class=rfc2119>MUST</em> set the specified value as the value
805      associated to this attribute.</p>
806    
807      <p>If the
808      <a href="#AttributeDefinition"><code>AttributeDefinition</code></a> node is
809      created during the process to create a <abbr>DOM</abbr> from an
810      <abbr>XML</abbr> document, an appropriate value from the
811      <a href="#DefaultValueType"><code>DefaultValueType</code></a> definition
812      group <em class=rfc2119>MUST</em> be set to the attribute.</p>
813    
814      <!-- DefaultValueType -->
815      <p>The definition group
816      <dfn id=DefaultValueType><code>DefaultValueType</code></dfn>
817      contains integers indicating the type of the default for the attribute.
818      The definition group contains the following constans:</p>
819    
820      <table>
821      <thead>
822      <tr><th scope=col>Name<th scope=col>Value<th scope=col>Description</tr>
823      </thead>
824      <tbody>
825      <tr>
826      <th scope=row><dfn id=UNKNOWN_DEFAULT class=dom-const><code>UNKNOWN_DEFAULT</code></dfn>
827      <td><code>0</code><td>Unknown.</tr>
828      <tr>
829      <th scope=row><dfn id=FIXED_DEFAULT class=dom-const><code>FIXED_DEFAULT</code></dfn>
830      <td><code>1</code><td>Provided explicitly and fixed
831      <span class=ed>@@ ref</span> to that value.</tr>
832      <tr>
833      <th scope=row><dfn id=REQUIRED_DEFAULT class=dom-const><code>REQUIRED_DEFAULT</code></dfn>
834      <td><code>2</code><td>No default value and the attribute have to be
835      explicitly specified.</tr>
836      <tr>
837      <th scope=row><dfn id=IMPLIED_DEFAULT class=dom-const><code>IMPLIED_DEFAULT</code></dfn>
838      <td><code>3</code><td>Implied <span class=ed>@@ ref</span>.</tr>
839      <tr>
840      <th scope=row><dfn id=EXPLICIT_DEFAULT class=dom-const><code>EXPLICIT_DEFAULT</code></dfn>
841      <td><code>4</code><td>Provided explicitly.</tr>
842      </tbody>
843      </table>
844    
845      <p>If the source of the default type does not distinguish
846      implied and unknown default types, then the value
847      <a href="#IMPLIED_DEFAULT"><code>IMPLIED_DEFAULT</code></a>
848      <em class=rfc2119>MUST</em> be used.</p>
849    
850      <div class="note memo">
851      <p>An <a href="#AttributeDefinition"><code>AttributeDefinition</code></a>
852      node created by the
853      <a href="#createAttributeDefinition"><code>createAttributeDefinition</code></a>
854      method has its <a href="#defaultType"><code>defaultType</code></a>
855      attribute set to
856      <a href="#UNKNOWN_DEFAULT"><code>UNKNOWN_DEFAULT</code></a>.</p>
857      </div></dd>
858    </dl>
859    
860    </div>
861    
862    <div class=section id=section-documenttype>
863    <h3>Modifications to the <code id=DocumentType>DocumentType</code>
864    Interface</h3>
865    
866    <p>A <a href="#DocumentType"><code>DocumentType</code></a> interface
867    <em class=rfc2119>MAY</em> contain zero or more
868    <a href="#ProcessingInstruction"><code>ProcessingInstruction</code></a>
869    nodes in the <code>NodeList</code> object contained in the
870    <code>childNodes</code> attribute of the
871    <a href="#DocumentType"><code>DocumentType</code></a> node.</p>
872    
873    <p>If the <a href="#DocumentType"><code>DocumentType</code></a> node is created
874    during the process to create a <abbr>DOM</abbr> from an <abbr>XML</abbr>
875    document, the <code>NodeList</code> object in the <code>childNodes</code>
876    object <em class=rfc2119>MUST</em> contains the
877    <a href="#ProcessingInstruction"><code>ProcessingInstruction</code></a>
878    nodes representing the processing instructions in the document type
879    definition of the document processed <span class=ed>@@ ref</span> by
880    the <abbr>XML</abbr> processor.  If the
881    <a href="#DocumentType"><code>DocumentType</code></a> node is marked
882    as read$B!>(Bonly, then all the child nodes <em class=rfc2119>MUST</em>
883    also be marked as read$B!>(Bonly.</p>
884    
885    <p>If a <a href="#DocumentType"><code>DocumentType</code></a> node is created
886    from a document type declaration information item <span class=ed>@@ ref</span>,
887    the <code>NodeList</code> object in the <code>childNodes</code> attribute
888    of the node <em class=rfc2119>MUST</em> contain the
889    <a href="#ProcessingInstruction"><code>ProcessingInstruction</code></a> nodes
890    created from the processing instruction information items in the list in the
891    [children] property of the document type declaration item in the same
892    order.</p>
893    
894    <p>If a <a href="#DocumentType"><code>DocumentType</code></a> node is mapped to
895    a document type declaration information item, the list in the [children]
896    property <em class=rfc2119>MUST</em> contain the processng instruction
897    information items created from the
898    <a href="#ProcessingInstruction"><code>ProcessingInstruction</code></a> nodes
899    in the <code>NodeList</code> object in the <code>childNodes</code> attribute
900    of the <a href="#DocumentType"><code>DocumentType</code></a> node.</p>
901    
902    <pre class=idl><code>// Modifications to the DocumentType interface
903      attribute DOMString <a href="#publicId">publicId</a>;
904      attribute DOMString <a href="#systemId">systemId</a>;
905    
906      attribute DOMString <a href="#internalSubset">internalSubset</a>;
907    </code></pre>
908    
909    <p>The <code id=publicId>publicId</code> attribute and the
910    <code id=systemId>systemId</code> attribute of
911    <a href="#DocumentType"><code>DocumentType</code></a>,
912    <a href="#Entity"><code>Entity</code></a>, and
913    <a href="#Notation"><code>Notation</code></a> interfaces are no longer
914    read$B!>(Bonly.</p>
915    
916    <p>On setting, the attribute <em class=rfc2119>MUST</em> raise a
917    <code>NO_MODIFICATION_ALLOWED_ERR</code> <span class=ed>@@ ref</span>
918    exception if the node is read$B!>(Bonly <span class=ed>@@ ref</span>.  
919    Otherwise, it <em class=rfc2119>MUST</em> set the specified value as the value
920    associated to the attribute.  No normalization, relative reference resolution,
921    or lexical validation is performed. <span class=ed>@@ If the new
922    value is <code>null</code>, ...</span></p>
923    
924    <div class="note memo">
925    <p>Setting an invalid identifier might make the node unserializable.
926    Setting a public identifier while leaveing system identifier unspecified
927    would also make the <a href="#DocumentType"><code>DocumentType</code></a>
928    or <a href="#Entity"><code>Entity</code></a> node unserializable.</p>
929    </div>
930    
931    <div class=ed>
932    <p>ISSUE: In HTML5, Firefox 1.5, and Opera 9, not specifying public or system identifier results in empty strings.</p>
933    </div>
934    
935  ** Definition groups  <p>The <code id=internalSubset>internalSubset</code> attribute of the
936    <a href="#DocumentType"><code>DocumentType</code></a> interface is no longer
937    read$B!>(Bonly.</p>
938    
939    <p>On setting, the attribute <em class=rfc2119>MUST</em> raise a
940    <code>NO_MODIFICATION_ALLOWED_ERR</code> <span class=ed>@@ ref</span>
941    exception if the node is read$B!>(Bonly <span class=ed>@@ ref</span>.  
942    Otherwise, it <em class=rfc2119>MUST</em> set the specified value as the value
943    associated to the attribute.  No normalization, or lexical validation is
944    performed. <span class=ed>@@ If the new value is <code>null</code>,
945    ...</span></p>
946    
 [6] The  
 [DFN@en[definition group [CODE(DOM)@en[[[DeclaredValueType]]]]]]  
 contains integers indicating the type of  
 attribute value:  
 ,[CODE(DOMc)@en[[[NO_TYPE_ATTR]]]],[CODE(IDL)[[[0]]]],The attribute value type corresponding to [[no value]] in XML Information Set.  
 ,[CODE(DOMc)@en[[[CDATA_ATTR]]]],[CODE(IDL)[[[1]]]],The attribute value type is [CODE(XML)@en[[[CDATA]]]].  
 ,[CODE(DOMc)@en[[[ID_ATTR]]]],[CODE(IDL)[[[2]]]],The attribute value type is [CODE(XML)@en[[[ID]]]].  
 ,[CODE(DOMc)@en[[[IDREF_ATTR]]]],[CODE(IDL)[[[3]]]],The attribute value type is [CODE(XML)@en[[[IDREF]]]].  
 ,[CODE(DOMc)@en[[[IDREFS_ATTR]]]],[CODE(IDL)[[[4]]]],The attribute value type is [CODE(XML)@en[[[IDREFS]]]].  
 ,[CODE(DOMc)@en[[[ENTITY_ATTR]]]],[CODE(IDL)[[[5]]]],The attribute value type is [CODE(XML)@en[[[ENTITY]]]].  
 ,[CODE(DOMc)@en[[[ENTITIES_ATTR]]]],[CODE(IDL)[[[6]]]],The attribute value type is [CODE(XML)@en[[[ENTITIES]]]].  
 ,[CODE(DOMc)@en[[[NMTOKEN_ATTR]]]],[CODE(IDL)[[[7]]]],The attribute value type is [CODE(XML)@en[[[NMTOKEN]]]].  
 ,[CODE(DOMc)@en[[[NMTOKENS_ATTR]]]],[CODE(IDL)[[[8]]]],The attribute value type is [CODE(XML)@en[[[NMTOKENS]]]].  
 ,[CODE(DOMc)@en[[[NOTATION_ATTR]]]],[CODE(IDL)[[[9]]]],The attribute value type is [CODE(XML)@en[[[NOTATION]]]].  
 ,[CODE(DOMc)@en[[[ENUMERATION_ATTR]]]],[CODE(IDL)[[[10]]]],The attribute value is enumeration type.  
 ,[CODE(DOMc)@en[[[UNKNOWN_ATTR]]]],[CODE(IDL)[[[11]]]],"The attribute value type is unknown, because no declaration for the attribute has been read but not [CODE(InfoProp)@en[[[all declarations processed]]]] property would be false."  
   
 The type of these constants are  
 [CODE(IDL)@en[[[unsigned]] [[short]]]].  
   
 If no attribute type information is provided,  
 or if the source of that information does not  
 distinguish [[no value]] and [[unknown]] as in  
 XML Information Set, then the  
 [CODE(DOMc)@en[[[NO_TYPE_ATTR]]]] value  
 [['''MUST''']] be used.  
   
 ;; A newly created [CODE(DOMi)@en[[[AttributeDefinition]]]]  
 object by [CODE(DOMm)@en[[[createAttributeDefinition]]]]  
 method has [CODE(DOMa)@en[[[declaredType]]]] attribute  
 set to [CODE(DOMc)@en[[[NO_TYPE_ATTR]]]].  
   
 If the source of the attribute type information  
 does not distinguish [[no value]] and / or [[unknown]]  
 and [CODE(XML)@en[[[CDATA]]]], then the  
 [CODE(DOMc)@en[[[CDATA_ATTR]]]] value [['''MUST''']]  
 be used.  
   
 [11]  
 In Perl binding, the objects implementing the  
 [CODE(DOMi)@en[[[Attr]]]] interface [['''MUST''']]  
 also implement the [CODE(DOM)@en[[[DeclaredValueType]]]]  
 constant group.  
   
 [7] The  
 [DFN@en[definition group [CODE(DOM)@en[[[DefaultValueType]]]]]]  
 contains integers indicating the type of  
 default attribute value:  
 ,[CODE(DOMc)@en[[[UNKNOWN_DEFAULT]]]],[CODE(IDL)[[[0]]]],The default value is unknown.  
 ,[CODE(DOMc)@en[[[FIXED_DEFAULT]]]],[CODE(IDL)[[[1]]]],The default value is provided and the attribute is [CODE(XML)@en[#[[FIXED]]]] to that value.  
 ,[CODE(DOMc)@en[[[REQUIRED_DEFAULT]]]],[CODE(IDL)[[[2]]]],An attribute specification is [CODE(XML)@en[#[[REQUIRED]]]] for the attribute.  
 ,[CODE(DOMc)@en[[[IMPLIED_DEFAULT]]]],[CODE(IDL)[[[3]]]],The default value is [CODE(XML)@en[#[[IMPLIED]]]].  
 ,[CODE(DOMc)@en[[[EXPLICIT_DEFAULT]]]],[CODE(IDL)[[[4]]]],The default value is provided but the attribute is not fixed to it.  
   
 The type of these constants are  
 [CODE(IDL)@en[[[unsigned]] [[short]]]].  
   
 If the source of the attribute default value type  
 does not distinguish the [CODE(XML)@en[#[[IMPLIED]]]]  
 default and unknown default, then the  
 [CODE(DOMc)@en[[[IMPLIED_DEFAULT]]]] value  
 [['''MUST''']] be used.  
   
 ;; A newly created [CODE(DOMi)@en[[[AttributeDefinition]]]]  
 object by [CODE(DOMm)@en[[[createAttributeDefinition]]]]  
 method has [CODE(DOMa)@en[[[declaredType]]]] attribute  
 set to [CODE(DOMc)@en[[[NO_TYPE_ATTR]]]].  
   
 ** Tree-relationship Attributes  
   
 [10]  
 The  
 [DFN@en[[CODE(DOMa)@en[[[ownerElementTypeDefinition]]]] attribute]]  
 of the [CODE(DOMi)@en[[[AttributeDefinition]]]] interface  
 is read-only and of type  
 [CODE(DOMi)@en[[[ElementTypeDefinition]]]].  
 It is the [CODE(DOMi)@en[[[ElementTypeDefinition]]]] node  
 which the [CODE(DOMi)@en[[[AttributeDefinition]]]] node  
 belong to.  
   
 If the [CODE(DOMi)@en[[[AttributeDefinition]]]] node  
 is included in the [CODE(DOMa)@en[[[attributeDefinitions]]]]  
 list of an [CODE(DOMi)@en[[[ElementTypeDefinition]]]] node,  
 then the attribute [['''MUST''']] return the  
 [CODE(DOMi)@en[[[ElementTypeDefinition]]]] node.  
 Otherwise, it [['''MUST''']] return [CODE(DOM)@en[[[null]]]].  
   
 ;; This attribute is analogue to the  
 [CODE(DOMa)@en[[[ownerDocumentTypeDefinition]]]] attribute  
 for [CODE(DOMi)@en[[[ElementTypeDefinition]]]],  
 [CODE(DOMi)@en[[[Entity]]]], and [CODE(DOMi)@en[[[Notation]]]]  
 nodes, or the [CODE(DOMa)@en[[[ownerElement]]]]  
 attribute for [CODE(DOMi)@en[[[Attr]]]] nodes.  
   
 ** Attributes  
   
 [5]  
 The [DFN@en[[CODE(DOMa)@en[[[declaredType]]]] attribute]]  
 of an [CODE(DOMi)@en[[[AttributeDefinition]]]] object  
 represents the type of the attribute value.  
   
 This attribute is read-write.  
 The type of the attribute is  
 [CODE(IDL)@en[[[unsigned]] [[short]]]].  It is expected  
 that this attribute has a value from the definition group  
 [CODE(DOM)@en[[[DeclaredValueType]]]].  
   
 The getter [['''MUST''']] return a value associated  
 to this attribute.  
   
 The setter [['''MUST''']]  
 throw a [CODE(DOMc)@en[[[NO_MODIFICATION_ALLOWED_ERR]]]]  
 [CODE(DOMi)@en[[[DOMException]]]] if the  
 [CODE(DOMi)@en[[[AttributeDefinition]]]] object is read-only.  
 Otherwise, the setter [['''MUST''']] set the specified  
 value as the value associated to this attribute.  
   
 If a parser create an [CODE(DOMi)@en[[[AttributeDefinition]]]]  
 object, then it [['''MUST''']] set a value  
 from the [CODE(DOM)@en[[[DeclaredValueType]]]]  
 definition group.  
   
 [8]  
 The [DFN@en[[CODE(DOMa)@en[[[defaultType]]]] attribute]]  
 of an [CODE(DOMi)@en[[[AttributeDefinition]]]] object  
 represents the type of the attribute default value.  
   
 This attribute is read-write.  
 The type of the attribute is  
 [CODE(IDL)@en[[[unsigned]] [[short]]]].  It is expected  
 that this attribute has a value from the definition group  
 [CODE(DOM)@en[[[DefaultValueType]]]].  
   
 The getter [['''MUST''']] return a value associated  
 to this attribute.  
   
 The setter [['''MUST''']]  
 throw a [CODE(DOMc)@en[[[NO_MODIFICATION_ALLOWED_ERR]]]]  
 [CODE(DOMi)@en[[[DOMException]]]] if the  
 [CODE(DOMi)@en[[[AttributeDefinition]]]] object is read-only.  
 Otherwise, the setter [['''MUST''']] set the specified  
 value as the value associated to this attribute.  
   
 If a parser create an [CODE(DOMi)@en[[[AttributeDefinition]]]]  
 object, then it [['''MUST''']] set a value  
 from the [CODE(DOM)@en[[[DefaultValueType]]]]  
 definition group.</pre>  
947  </div>  </div>
948    
949  </div>  </div>
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