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<div class="header">
<h1>DOM Document Type Definition Module</h1>
<h2>Working Draft <time datetime=2007-12-08>8 December 2007</time></h2>

<dl class="versions-uri">
<dt>This Version</dt>
  <dd><code class="URI">&lt;<a href="http://suika.fam.cx/www/markup/xml/domdtdef/domdtdef-work"
      >http://suika.fam.cx/www/markup/xml/domdtdef/domdtdef-work</a>&gt;</code></dd>
<dt>Latest Version</dt>
  <dd><code class="URI">&lt;<a href="http://suika.fam.cx/www/markup/xml/domdtdef/domdtdef"
      >http://suika.fam.cx/www/markup/xml/domdtdef/domdtdef</a>&gt;</code></dd>
<dt>Latest Working Draft</dt>
  <dd><code class="URI">&lt;<a href="http://suika.fam.cx/www/markup/xml/domdtdef/domdtdef-work"
      >http://suika.fam.cx/www/markup/xml/domdtdef/domdtdef-work</a>&gt;</code></dd>
<!-- <dt>Previous Version</dt> -->
<dt>Version History</dt>
  <dd><code class=URI>&lt;<a href="http://suika.fam.cx/gate/cvs/markup/xml/domdtdef/domdtdef-work.en.html">http://suika.fam.cx/gate/cvs/markup/xml/domdtdef/domdtdef-work.en.html</a>&gt;</code></dd>
<dt id=author>Author</dt>
  <dd><a href="http://suika.fam.cx/~wakaba/who?" rel="author"
      lang=ja>Wakaba</a>
  <code class="mail">&lt;<a href="mailto:w@suika.fam.cx" rel="author"
      >w@suika.fam.cx</a>&gt;</code></dd>
</dl>

<p class="copyright" lang="en">&#xA9; <time>2007</time> <a
    href="http://suika.fam.cx/~wakaba/who?" rel="author">Wakaba</a>.
Permission is granted to copy, distribute and/or modify this document
under the terms of the <a rel="license"
href="http://www.gnu.org/copyleft/fdl.html">GNU Free Documentation License</a>,
Version 1.2
or any later version published by the <a
href="http://www.fsf.org/">Free Software Foundation</a>;
with no Invariant Sections, no Front$B!>(BCover Texts, and no Back$B!>(BCover
Texts.  A copy of the license is
available at <code class="URI">&lt;<a
    href="http://www.gnu.org/copyleft/fdl.html"
    rel="license">http://www.gnu.org/copyleft/fdl.html</a>&gt;</code>.</p>
</div>

<div id="abstract" class="section">
<h2>Abstract</h2>

<p>The <abbr>DOM</abbr> Document Type Definition module is a set of 
<abbr>DOM</abbr> interfaces, including both new interfaces and modifications 
to existing <abbr>DOM</abbr> interfaces, over which <abbr>DOM</abbr> 
applications are able to access to the definitions of the document type.</p>
</div>

<div id="status" class="section">
<h2>Status of This Document</h2>

<p class=section-info><em>This section describes the status of this document
at the time of its publication.  Other documents
might supersede this document.</em></p>

<p>This document is a working draft, produced as part of the 
<a href="http://suika.fam.cx/www/manakai-core/doc/web/">manakai</a> 
project.  It might be updated, replaced, or obsoleted by
other documents at any time.  It is inappropriate to
cite this document as other than <q>work in progress</q>.</p>

<p>Comments on this document are welcome and
may be sent to the <a href="#author">author</a>.</p>

<p>Translations of thie document might be available.
The English version of the document is the only
normative version.</p>
</div>

<div id="introduction" class="section">
<h2>Introduction</h2>

<p class=section-info>This section is <em>non$B!>(Bnormative</em>.</p>

<p>The <dfn id=term-dom-dtdef><abbr>DOM</abbr> Document Type Definition</dfn>
module is a set of <abbr>DOM</abbr> interfaces, including both new
interfaces and modifications to existing <abbr>DOM</abbr> interfaces,
over which <abbr>DOM</abbr> applications are able to access to the
definitions of the document type.</p>

<p>Interfaces defined in this document are partially modeled and inspired by
early drafts of <abbr>DOM</abbr> Level 1
<cite class="bibref informative">[<a href="#ref-DOM1WD">DOM1WD</a>]</cite>,
<abbr>DOM</abbr> Level 3 Abstract Schemas <abbr>W3C</abbr> Note
<cite class="bibref informative">[<a href="#ref-DOM3AS">DOM3AS</a>]</cite>,
and <abbr>XML</abbr> Schema <abbr>API</abbr> specification
<cite class="bibref informative">[<a href="#ref-XSAPI">XSAPI</a>]</cite>, but 
they are not compatible with any of them as a whole.</p>
</div>

<div class="section" id=conformance>
<h2>Conformance Requirements</h2>

<div class=section id=terminology>
<h3>Terminology</h3>

<p>All examples and notes in this specification are non$B!>(Bnormative,
as are all sections explicitly marked non$B!>(Bnormative.  Everything
else in this specification is normative.</p>

<p>The key words <q><em class="rfc2119">MUST</em></q>,
<q><em class="rfc2119">MUST NOT</em></q>, and <q><em class=rfc2119>MAY</em></q>
in this document are to be interpreted as described in 
<a href="urn:ietf:rfc:2119"><abbr title="Request for Comments">RFC</abbr> 
2119</a>
<cite class="bibref normative">[<a href="#ref-KEYWORDS">KEYWORDS</a>]</cite>.</p>

<p>Conformance requirements phrased as algorithms or specific steps 
<em class=rfc2119>MAY</em> be implemented in any manner, so long as the end
result is equivalent.  Requirements phrased in the imperative as part of 
algorithms are to be interpreted with the meaning of the key word used in 
introducing the algorithm.</p>

<p>Sometimes an exception is phrased as being required to be raised.  As
specified in the <abbr>DOM</abbr> Core specification
<cite class="bibref normative">[<a href="#ref-DOM3CORE">DOM3CORE</a>]</cite>,
when the value of the <code>strictErrorChecking</code> attribute of the
<a href="#Document"><code>Document</code></a> node is <code>false</code>,
then the exception is not have to be raised.</p>

<p>Some conformance requirements are phrased as requirements on interfaces,
attributes, methods, or objects.  Such requirements are applied to
implementations.</p>

<p>The construction <q>a <code><var>Foo</var></code> object</q>, where
<code><var>Foo</var></code> is an interface, is used instead of the more
accurate <q>an object implementing the interface 
<code><var>Foo</var></code></q>.</p>

<p>The construction <q>raise a <code><var>Bar</var></code></q>, where
<code><var>Bar</var></code> is an exception code, is used instead of the more
accurate <q>raise an exception implementing the interface
<code>DOMException</code> 
<cite class="bibref normative">[<a href="#ref-DOM3CORE">DOM3CORE</a>]</cite> 
with its <code>code</code> attribute set to 
<code><var>Bar</var></code></q>.</p>

<p>The terms
<em id=live><a href="http://www.whatwg.org/specs/web-apps/current-work/#live">live</a></em>
and <em id=setting>setting</em> and <em id=getting>getting</em> of an attribute
is defined in the HTML5 specification
<cite class="bibref normative">[<a href="#ref-HTML5">HTML5</a>]</cite>.</p>

<p>The term 
<em id=read-only><a href="http://www.w3.org/TR/2004/REC-DOM-Level-3-Core-20040407/glossary.html#dt-readonly-node">read$B!>(Bonly (node)</a></em>
is defined in the <abbr>DOM</abbr> Level 3 Core specification
<cite class="bibref normative">[<a href="#ref-DOM3CORE">DOM3CORE</a>]</cite>.</p>

<p class=ed>@@ ref to DOM Binding Spec</p>
</div>

<div class=section id=conformance-categories>
<h3>Conformance Categories</h3>

<p>There are several kinds of products that can be claim to conform to
this specification:</p>
<dl>
<dt id=category-dom-implementation><abbr>DOM</abbr> Implementation</dt>
  <dd>A <abbr>DOM</abbr> implementation (or just written as 
  <q>implementation</q> in this document) provides a way to access
  <abbr>DOM</abbr> trees for applications by implementing interfaces defined 
  by this and other documents.  Unless otherwise noted, requirements in this
  document are applied to <abbr>DOM</abbr> implementations.  To implement
  all the features in this document, the implementation have to implement
  some version of <abbr>DOM</abbr> Core (e.g. <abbr>DOM</abbr> Level 3 Core
  <cite class="bibref normative">[<a href="#ref-DOM3CORE">DOM3CORE</a>]</cite>)
  with one or more language binding (e.g. ECMAScript or Java binding <span class=ed>[BINDINGS]</span> or
  Perl binding <span class=ed>[PERLBINDING]</span>).</dd>
<dt id=category-xml-parser><abbr>XML</abbr> Parser (<abbr>XML</abbr> document
to <abbr>DOM</abbr> tree converter)</dt>
  <dd>A software component that converts
  <abbr>XML</abbr> 1.0 or 1.1 document
  <cite class="bibref normative">[<a href="#ref-XML10">XML10</a>,
  <a href="#ref-XML11">XML11</a>]</cite> (or fragment thereof) into a 
  <abbr>DOM</abbr> tree (or fragment thereof) in the context of this
  document.  Note that this document does not define any particular way to
  parse an <abbr>XML</abbr> document or to construct an <abbr>DOM</abbr>
  document, but it defines constraints for such processing.</dd>
<dt id=category-xml-serializer><abbr>XML</abbr> Serializer (<abbr>DOM</abbr>
tree to <abbr>XML</abbr> document converter)</dt>
  <dd>A software component that converts 
  <abbr>DOM</abbr> tree (or fragment thereof) into an <abbr>XML</abbr> 1.0 or
  1.1 document (or fragment thereof).  Note that this document does not define
  any particular way to serialize a <abbr>DOM</abbr> tree, but it defines
  constraints for such processing.</dd>
<dt id=category-infoset-dom><abbr>XML</abbr> Information Set to
<abbr>DOM</abbr> Tree Converter</dt>
  <dd>A software component that converts an <abbr>XML</abbr> information set
  <cite class="bibref normative">[<a href="#ref-INFOSET">INFOSET</a>]</cite>
  into a <abbr>DOM</abbr> tree.  Note that this documetn does not define
  any particular way for the convertion, but it defines constraints for
  such processing.</dd>
<dt id=category-dom-infoset><abbr>DOM</abbr> Tree to <abbr>XML</abbr>
Information Set Converter</dt>
  <dd>A software component that converts a <abbr>DOM</abbr> tree into 
  an <abbr>XML</abbr> information set.  Note that this documetn does not define
  any particular way for the convertion, but it defines constraints for
  such processing.</dd>
</dl>
</div>
</div>

<div class=section id=dom-dtdef>
<h2><abbr>DOM</abbr> Document Type Definition Module</h2>

<p>The <abbr>DOM</abbr> Document Type Definition module, version 3.0, 
introduces four interfaces:
<a href="#DocumentXDoctype"><code>DocumentXDoctype</code></a>,
<a href="#DocumentTypeDefinition"><code>DocumentTypeDefinition</code></a>,
<a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a>,
and <a href="#AttributeDefinition"><code>AttributeDefinition</code></a>.
In addition, it modifies existing interfaces 
<a href="#Node"><code>Node</code></a>,
<a href="#Document"><code>Document</code></a>,
<a href="#DocumentType"><code>DocumentType</code></a>,
<a href="#Entity"><code>Entity</code></a>, and
<a href="#Notation"><code>Notation</code></a>
<cite class="bibref normative">[<a href="#ref-DOM3CORE">DOM3CORE</a>]</cite>.</p>

<div class=section id=features>
<h3>Feature String</h3>

<p>In a <abbr>DOM</abbr> implementation that supports the version 3.0 of 
the <abbr>DOM</abbr> Document Type Definition module, the 
<code>hasFeature</code> method of a <code>DOMImplementation</code> object 
<cite class="bibref normative">[<a href="#ref-DOM3CORE">DOM3CORE</a>]</cite>
<em class=rfc2119>MUST</em> return <code>true</code> when the parameters are
set to 
<dfn id=feature-XDoctype><code>http://suika.fam.cx/www/2006/feature/XDoctype</code></dfn>
and <dfn id=feature-XDoctype-3.0><code>3.0</code></dfn> respectively.  Any 
method that takes one or more feature names, with or without version number, 
such as <code>hasFeature</code> or <code>getFeature</code>, 
<em class=rfc2119>MUST</em> behave in a manner consistent with it.</p>
</div>

<div class=section id=section-node>
<h3>Modifications to the <code id=Node>Node</code> Interface</h3>

<p>The implementation of the 
<a href="#Node"><code>Node</code></a> interface
<em class=rfc2119>MUST</em> be modified as following:</p>
<pre class=idl><code>// Additions to the Node interface

// Additions to the NodeType definition group
const unsigned short <a href="#ELEMENT_TYPE_DEFINITION_NODE">ELEMENT_TYPE_DEFINITION_NODE</a> = 81001;
const unsigned short <a href="#ATTRIBUTE_DEFINITION_NODE">ATTRIBUTE_DEFINITION_NODE</a> = 81002;
</pre>

<p>This specification adds two new types (subinterfaces) of 
<a href="#Node"><code>Node</code></a>: element type definition (node type 
<a href="#ELEMENT_TYPE_DEFINITION_NODE"><code>ELEMENT_TYPE_DEFINITION_NODE</code></a>,
interface
<a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a>) and
attribute definition (node type
<a href="#ATTRIBUTE_DEFINITION_NODE"><code>ATTRIBUTE_DEFINITION_NODE</code></a>,
interface
<a href="#AttributeDefinition"><code>AttributeDefinition</code></a>).  For
these kinds of nodes, methods and attributes in the 
<a href="#Node"><code>Node</code></a> interface must behave as following:</p>

<dl>
<dt><code id=attributes>attributes</code></dt>
  <dd>
    <p>On getting, the attribute <em class=rfc2119>MUST</em> return
    <code>null</code>.</p>
  </dd>
<dt><code id=baseURI>baseURI</code></dt>
  <dd>
    <p>On getting, the attribute <em class=rfc2119>MUST</em> return the
    value of the <a href="#baseURI"><code>baseURI</code></a> attribute
    of the node in the <code>ownerDocument</code> attribute of the node.
    Note that the value might be <code>null</code>.</p>
  </dd>
<dt><code id=cloneNode>cloneNode</code></dt>
  <dd class=ed>
    <p>A future version of the specification is expected to define the
    behavior of the <a href="#cloneNode"><code>cloneNode</code></a> method
    for those kinds of nodes.  In addition, it might revise behavior of 
    the method for <a href="#Entity"><code>Entity</code></a>, 
    <a href="#Notation"><code>Notation</code></a>, and/or
    <a href="#DocumentType"><code>DocumentType</code></a> nodes.</p>
  </dd>
  <!--
  <dd class=ed>@@ If Attr and AttributeDefinition is inconsistent, then ...</dd>
  -->
<dt><code id=compareDocumentPosition>compareDocumentPosition</code></dt>
  <dd class=ed>
    <p>A future version of the specification is expected to define the
    behavior of the method
    for those kinds of nodes.  In addition, it might revise behavior of
    the method for <a href="#Entity"><code>Entity</code></a>,
    <a href="#Notation"><code>Notation</code></a>, and/or
    <a href="#DocumentType"><code>DocumentType</code></a> nodes.</p>
  </dd>
<dt><code id=isDefaultNamespace>isDefaultNamespace</code></dt>
  <dd><p>When invoked, the method <em class=rfc2119>MUST</em> return
  <code>false</code>.</p></dd>
<dt><code id=isEqualNode>isEqualNode</code></dt>
  <dd><p>For the <a href="#isEqualNode"><code>isEqualNode</code></a> method, 
  following items are added to the list of conditions for equality:</p>

  <ul>
  <li>
    <p>If the nodes are <a href="#DocumentType"><code>DocumentType</code></a>
    and at least one of them has the support for the feature
    <a href="#feature-XDoctype"><code>http://suika.fam.cx/www/2006/feature/XDoctype</code></a>:</p>
    <ul>
    <li>they are equal according to <abbr>DOM</abbr> Level 3 Core definition
    <cite class="bibref normative">[<a href="#ref-DOM3CORE">DOM3CORE</a>]</cite>,
    and
    <li>either:
      <ul><!--
      <li>both of them does not support the feature
      <a href="#feature-XDoctype"><code>http://suika.fam.cx/www/2006/feature/XDoctype</code></a>,</li>-->
      <li>exactly one of them support the feature
      <a href="#feature-XDoctype"><code>http://suika.fam.cx/www/2006/feature/XDoctype</code></a>
      and the <code>length</code> attribute of the <code>NamedNodeMap</code> 
      object in the <a href="#elementTypes"><code>elementTypes</code></a> 
      attribute of it is equal to <code>0</code>, or</li>
      <li>both of them support the feature
      <a href="#feature-XDoctype"><code>http://suika.fam.cx/www/2006/feature/XDoctype</code></a>
      and the values of the
      <a href="#elementTypes"><code>elementTypes</code></a> attributes are
      equal (equality of the
      <a href="#elementTypes"><code>elementTypes</code></a> attribute is same
      as that for the <code>attributes</code> attribute).</li>
      </ul>
    </li>
    </ul>
  </li>

  <li><p>If the nodes are
  <a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a>,
  the values of the
  <a href="#attributeDefinitions"><code>attributeDefinitions</code></a>
  attributes are equal (equality of the
  <a href="#attributeDefinitions"><code>attributeDefinitions</code></a>
  attribute is same as that for the <code>attributes</code> attribute).</p></li>

  <li><p>If the nodes are 
  <a href="#AttributeDefinition"><code>AttributeDefinition</code></a>,
  the values of the <a href="#declaredType"><code>declaredType</code></a> and
  the <a href="#defaultType"><code>defaultType</code></a> attributes are
  equal respectively.</p></li>

  <li><p>If the nodes are
  <a href="#AttributeDefinition"><code>AttributeDefinition</code></a>,
  the values of the <code>DOMStringList</code> objects in the
  <a href="#allowedTokens"><code>allowedTokens</code></a> attributes
  are equal, i.e. their <code>length</code> attribute values are equal and
  each string exists in a list is contained in another list (their indeces
  may be different), with an additional constraint that the number of the
  items that are equal to a string in a list is equal to the number
  of the items equal to the string in another list.</p></li>
  </ul></dd>
<dt><code id=lookupNamespaceURI>lookupNamespaceURI</code> and
<code id=lookupPrefix>lookupPrefix</code></dt>
  <dd><p>When invoked, the methods <em class=rfc2119>MUST</em> return
  <code>null</code>.</p></dd>
<dt><code id=nodeName>nodeName</code></dt>
  <dd>
    <p>If the node is an 
    <a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a>:
    On getting, the attribute <em class=rfc2119>MUST</em> return the
    name of the element type definition represented by the node.</p>

    <p>If the node is an 
    <a href="#AttributeDefinition"><code>AttributeDefinition</code></a>:
    On getting, the attribute <em class=rfc2119>MUST</em> return the
    name of the attribute definition represented by the node.</p>
  </dd>
<dt><code id=nodeType>nodeType</code></dt>
  <dd>
    <p>On getting, the attribute <em class=rfc2119>MUST</em> return
    <a href="#ELEMENT_TYPE_DEFINITION_NODE"><code>ELEMENT_TYPE_DEFINITION_NODE</code></a>
    (if the node is an 
    <a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a>) or
    <a href="#ATTRIBUTE_DEFINITION_NODE"><code>ATTRIBUTE_DEFINITION_NODE</code></a>
    (if the node is an
    <a href="#AttributeDefinition"><code>AttributeDefinition</code></a>).</p>

    <!-- NodeType -->
<p>Two constants are added to the <code id=NodeType>NodeType</code>
definition group of the <a href="#Node"><code>Node</code></a> interface as
following:</p>
<table>
<thead>
<tr><th scope=col>Name<th scope=col>Value<th scope=col>Description</tr>
</thead>
<tbody>
<tr>
<th scope=row><dfn id=ELEMENT_TYPE_DEFINITION_NODE class=dom-const><code>ELEMENT_TYPE_DEFINITION_NODE</code></dfn>
<td><code>81001</code><td>The node is an 
<a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a>.</tr>
<tr>
<th scope=row><dfn id=ATTRIBUTE_DEFINITION_NODE class=dom-const><code>ATTRIBUTE_DEFINITION_NODE</code></dfn>
<td><code>81002</code><td>The node is an 
<a href="#ElementTypeDefinition"><code>AttributeDefinition</code></a>.</tr>
</tbody>
</table>
  </dd>
<dt><code id=nodeValue>nodeValue</code> and 
<code id=textContent>textContent</code></dt>
  <dd>
    <p>If the node is an 
    <a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a>:
    On getting, the attributes <em class=rfc2119>MUST</em> return 
    <code>null</code>.</p>

  <div class="note memo">
  <p>Thus, on setting the attributes does nothing
  <cite class="bibref normative">[<a href="#ref-DOM3CORE">DOM3CORE</a>]</cite>.</p>
  </div>

  <p>If the node is an 
  <a href="#AttributeDefinition"><code>AttributeDefinition</code></a>:
  The attribute <em class=rfc2119>MUST</em> behave as if the node
  were <code>Attr</code>
  <cite class="bibref normative">[<a href="#ref-DOM3CORE">DOM3CORE</a>]</cite>.</p></dd>
<dt><code id=normalize>normalize</code></dt>
  <dd><p>When a <a href="#DocumentType"><code>DocumentType</code></a> is
  normalized, any nodes in the <code>NamedNodeMap</code> object in the
  <a href="#elementTypes"><code>elementTypes</code></a> attribute
  <em class=rfc2119>MUST</em> be normalized as well.</p>

  <p>When an
  <a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a> node
  is normalized, any nodes in the <code>NamedNodeMap</code> object in the
  <a href="#attributeDefinitions"><code>attributeDefinitions</code></a> 
  attribute <em class=rfc2119>MUST</em> be normalized as well.</p></dd>
</dl>

</div>

<div class=section id=section-document>
<h3>Modifications to the <code id=Document>Document</code> Interface</h3>

<!--
<p>If an attempt is made to adopt an
<a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a> or
<a href="#AttributeDefinition"><code>AttributeDefinition</code></a> node,
the <code id=adoptNode>adoptNode</code> method <em class=rfc2119>MUST</em>
raise a <code>NOT_SUPPORTED_ERR</code> exception <span class=ed>@@ 
ref</span>.</p>
-->

<div class=ed>
<p>Future version of the specification is expected to define what should
be done if <code>adoptNode</code> or <code>importNode</code> method have to
adopt or import an 
<a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a> or
<a href="#AttributeDefinition"><code>AttributeDefinition</code></a> node.
In addition it might revise behavior of those methods for 
<a href="#Entity"><code>Entity</code></a>, 
<a href="#Notation"><code>Notation</code></a>, and/or
<a href="#DocumentType"><code>DocumentType</code></a> nodes.
Behavior of <code>normalizeDocument</code> method for these kinds of
nodes might also be defined in some day.</p>
</div>

</div>

<div class=section id=section-documentxdoctype>
<h3>The <code>DocumentXDoctype</code> Interface</h3>

<p>The <a href="#Document"><code>Document</code></a> nodes 
<em class=rfc2119>MUST</em> also implement the 
<a href="#DocumentXDoctype"><code>DocumentXDoctype</code></a> interface.</p>

<p>An instance of the 
<a href="#DocumentXDoctype"><code>DocumentXDoctype</code></a>
interface <em class=rfc2119>MUST</em> be able to be obtained by using 
binding$B!>(Bspecific casting methods on an instance of the 
<a href="#Document"><code>Document</code></a> interface (if such
casting methods are available) or by using the method <code>getFeature</code> 
with parameter values
<a href="#feature-XDoctype"><code>http://suika.fam.cx/www/2006/feature/XDoctype</code></a>
and <a href="#feature-XDoctype-3.0"><code>3.0</code></a> respectively (if the 
<a href="#Document"><code>Document</code></a> node supports the
feature <code>Core</code> version <code>3.0</code> 
<cite class="bibref normative">[<a href="#ref-DOM3CORE">DOM3CORE</a>]</cite>).</p>

<p>The <a href="#DocumentXDoctype"><code>DocumentXDoctype</code></a> interface 
<em class=rfc2119>MUST</em> be implemented as following:</p>
<pre class=idl><code>interface <dfn id=DocumentXDoctype><code>DocumentXDoctype</code></dfn> {
  DocumentType <a href="#createDocumentTypeDefinition">createDocumentTypeDefinition</a>
    (in DOMString <a href="#createDocumentTypeDefinition-name"><var>name</var></a>)
    raises (DOMException);
  <a href="#ElementTypeDefinition">ElementTypeDefinition</a> <a href="#createElementTypeDefinition">createElementTypeDefinition</a>
    (in DOMString <a href="#createElementTypeDefinition-name"><var>name</var></a>)
    raises (DOMException);
  <a href="#AttributeDefinition">AttributeDefinition</a> <a href="#createAttributeDefinition">createAttributeDefinition</a>
    (in DOMString <a href="#createAttributeDefinition-name"><var>name</var></a>)
    raises (DOMException);
  <a href="#Entity">Entity</a> <a href="#createGeneralEntity">createGeneralEntityDefinition</a>
    (in DOMString <a href="#createGeneralEntity-name"><var>name</var></a>)
    raises (DOMException);
  <a href="#Notation">Notation</a> <a href="#createNotation">createNotation</a>
    (in DOMString <a href="#createNotation-name"><var>name</var></a>)
    raises (DOMException);
}</code></pre>

<dl>
<dt><dfn id=createDocumentTypeDefinition class=dom-method><code>createDocumentTypeDefinition</code></dfn>,
method</dt>
  <dd>
    <p>This method creates a <code>DocumentType</code> node with the specified
    name, belonging to the document.</p>
    <p>The
    <dfn id=createDocumentTypeDefinition-name class=dom-param><var>name</var></dfn>
    parameter is the name of the document type.</p>

    <p>When invoked, the method <em class=rfc2119>MUST</em> create and
    return a <a href="#DocumentType"><code>DocumentType</code></a> node with
    the following attributes:</p>
    <dl>
    <dt><code>attributes</code>, <code>parentNode</code></dt>
      <dd><code>null</code>.</dd>
    <dt><a href="#elementTypes"><code>elementTypes</code></a>,
    <a href="#entities"><code>entities</code></a>, and
    <a href="#notations"><code>notations</code></a></dt>
      <dd>Empty <code>NamedNodeMap</code> objects respectively.</dd>
    <dt><code>childNodes</code></dt>
      <dd>An empty <code>NodeList</code> object.</dd>
    <dt><a href="#internalSubset"><code>internalSubset</code></a>, 
    <a href="#publicId"><code>publicId</code></a>, and
    <a href="#systemId"><code>systemId</code></a></dt>
      <dd>Empty strings.</dd>
    <dt><code>manakaiReadOnly</code> <span class=ed>[manakai]</span></dt>
      <dd><code>false</code>.</dd>
    <dt><code>nodeName</code></dt>
      <dd><a href="#createDocumentTypeDefinition-name"><var>name</var></a>.</dd>
    <dt><code>ownerDocument</code></dt>
      <dd>The <a href="#Document"><code>Document</code></a> node over which the
      method is invoked.</dd>
    </dl>
    <p>In addition, the method <em class=rfc2119>MUST</em> be marked as 
    containing five general entity declarations: <code>amp</code>,
    <code>lt</code>, <code>gt</code>, <code>quot</code>, and
    <code>apos</code>.</p>
  </dd>
<dt><dfn id=createElementTypeDefinition class=dom-method><code>createElementTypeDefinition</code></dfn>,
method</dt>
  <dd>
    <p>This method creates a <code>ElementTypeDefinition</code> node with the
    specified name, belonging to the document.</p>
    <p>The <dfn id=createElementTypeDefinition-name class=dom-param><var>name</var></dfn>
    parameter is the name of the element type defined by the element
    type definition.</p>

    <p>When invoked, the method <em class=rfc2119>MUST</em> create and 
    return an
    <a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a>
    node with the following attributes:</p>
    <dl>
    <dt><a href="#attributeDefinitions"><code>attributeDefinitions</code></a></dt>
      <dd>An empty <code>NamedNodeMap</code> object.</dd>
    <dt><a href="#attributes"><code>attributes</code></a>,
    <code>parentNode</code></dt>
      <dd><code>null</code>.</dd>
    <dt><code>childNodes</code></dt>
      <dd>An empty <code>NodeList</code> object.</dd>
    <dt><code>manakaiReadOnly</code> <span class=ed>[manakai]</span></dt>
      <dd><code>false</code>.</dd>
    <dt><a href="#nodeName"><code>nodeName</code></a></dt>
      <dd><a href="#createElementTypeDefinition-name"><var>name</var></a>.</dd>
    <dt><code>ownerDocument</code></dt>
      <dd>The <code>Document</code> node over which the method is invoked.</dd>
    <dt><a href="#ownerDocumentTypeDefinition"><code>ownerDocumentTypeDefinition</code></a></dt>
      <dd><code>null</code>.</dd>
    <dt class=ed>@@ Ensure all attributes are defined</dt>
    </dl>
  </dd>
<dt><dfn id=createAttributeDefinition class=dom-method><code>createAttributeDefinition</code></dfn>,
method</dt>
  <dd>
    <p>This method creates a <code>AttributeDefinition</code> node with the
    specified name, belonging to the document.</p>
    <p>The <dfn id=createAttributeDefinition-name class=dom-param><var>name</var></dfn>
    parameter is the name of the attribute defined by the attribute
    definition.</p>

    <p>When invoked, the method <em class=rfc2119>MUST</em> create and 
    return an
    <a href="#AttributeDefinition"><code>AttributeDefinition</code></a>
    node with the following attributes:</p>
    <dl>
    <dt><a href="#allowedTokens"><code>allowedTokens</code></a></dt>
      <dd>An empty <code>DOMStringList</code> object.</dd>
    <dt><a href="#attributes"><code>attributes</code></a>,
    <a href="#ownerElementTypeDefinition"><code>ownerElementTypeDefinition</code></a>,
    and <code>parentNode</code></dt>
      <dd><code>null</code>.</dd>
    <dt><code>childNodes</code></dt>
      <dd>An empty <code>NodeList</code> object.</dd>
    <dt><a href="#declaredType"><code>declaredType</code></a></dt>
      <dd><a href="#NO_TYPE_ATTR"><code>NO_TYPE_ATTR</code></a>.</dd>
    <dt><a href="#defaultType"><code>defaultType</code></a></dt>
      <dd><a href="#UNKNOWN_DEFAULT"><code>UNKNOWN_DEFAULT</code></a>.</dd>
    <dt><code>manakaiReadOnly</code> <span class=ed>[manakai]</span></dt>
      <dd><code>false</code>.</dd>
    <dt><a href="#nodeName"><code>nodeName</code></a></dt>
      <dd><a href="#createAttributeDefinition-name"><var>name</var></a>.</dd>
    <dt><code>ownerDocument</code></dt>
      <dd>The <code>Document</code> node over which the method is invoked.</dd>
    <dt class=ed>@@ Ensure all attributes are defined</dt>
    </dl>

    <!-- This requirement, if not droped, should be part of xml-id spec.
    <div class=ed>
    <p>@@ Should we keep these statements?: 
However, if the &lt;cfg::cfg|xml-id> configuration
parameter is set to <code>true</code> and the <var>name</var>
is <code>xml:id</code>, then the [CODE(DOMa)@en[[[declaredType]]]]
attribute is set to <code>ID_ATTR</code>.
[CODE(DOMa)@en[[[defaultType]]]]?</p>
    </div>-->
  </dd>
<dt><dfn id=createGeneralEntity class=dom-method><code>createGeneralEntity</code></dfn>,
method</dt>
  <dd>
    <p>This method creates a <a href="#Entity"><code>Entity</code></a> node
    with the specified name, which represents a general entity, belonging to
    the document.</p>
    <p>The <dfn id=createGeneralEntity-name class=dom-param><var>name</var></dfn>
    parameter is the name of the general entity.</p>

    <p>When invoked, the method <em class=rfc2119>MUST</em> create and return
    an <a href="#Entity"><code>Entity</code></a> node with the following
    attributes:</p>
    <dl>
    <dt><code>attributes</code>, 
    <a href="#notationName"><code>notationName</code></a>,
    <a href="#ownerDocumentTypeDefinition"><code>ownerDocumentTypeDefinition</code></a>,
    and <code>parentNode</code></dt>
      <dd><code>null</code>.</dd>
    <dt><code>childNodes</code></dt>
      <dd>An empty <code>NodeList</code> object.</dd>
    <dt><code>manakaiDeclarationBaseURI</code>,
    <code>manakaiEntityBaseURI</code>, and
    <code>manakaiEntityURI</code> <span class=ed>@@ ref</span></dt>
      <dd>No explicit value is set.</dd>
    <dt><a href="#hasReplacementTree"><code>hasReplacementTree</code></a> and
    <code>manakaiReadOnly</code> <span class=ed>[manakai]</span></dt>
      <dd><code>false</code>.</dd>
    <dt><code>nodeName</code></dt>
      <dd><a href="#createGeneralEntity-name"><var>name</var></a>.</dd>
      <dd>
        <div class="note memo">
          <p>It is not an error for
          <a href="#createGeneralEntity-name"><var>name</var></a> matching
          to the name of one of predefined general parsed entities in
          <abbr>XML</abbr> or <abbr>HTML</abbr>.  For example, 
          <a href="#createGeneralEntity-name"><var>name</var></a> might be
          <code>amp</code>, resulting in an
          <a href="#Entity"><code>Entity</code></a> node
          with its <code>nodeName</code> attribute set to <code>amp</code>.</p>
        </div>
      </dd>
    <dt><code>ownerDocument</code></dt>
      <dd>The <code>Document</code> node over which the method is invoked.</dd>
    <dt><a href="#publicId"><code>publicId</code></a> and 
    <a href="#systemId"><code>systemId</code></a></dt>
      <dd><code>null</code>.</dd>
      <dd class=ed>@@ publicId and systemId should be empty string?</dd>
    <dt class=ed>@@ Ensure all attributes are defined</dd>
    </dl>
  </dd>
<dt><dfn id=createNotation class=dom-method><code>createNotation</code></dfn>,
method</dt>
  <dd>
    <p>This method creates a <code>Notation</code> node with the
    specified name, belonging to the document.</p>
    <p>The <dfn id=createNotation-name class=dom-param><var>name</var></dfn>
    parameter is the name of the notation.</p>

    <p>When invoked, the method <em class=rfc2119>MUST</em> create and return
    a <code>Notation</code> node with the following attributes:</p>
    <dl>
    <dt><code>attributes</code>,
    <a href="#ownerDocumentTypeDefinition"><code>ownerDocumentTypeDefinition</code></a>,
    and <code>parentNode</code></dt>
      <dd><code>null</code>.</dd>
    <dt><code>childNodes</code></dt>
      <dd>An empty <code>NodeList</code> object.</dd>
    <dt><code>manakaiDeclarationBaseURI</code></dt>
      <dd>No explicit value is set.</dd>
    <dt><code>manakaiReadOnly</code> <span class=ed>[manakai]</span></dt>
      <dd><code>false</code>.</dd>
    <dt><code>nodeName</code></dt>
      <dd><a href="#createNotation-name"><var>name</var></a>.</dd>
    <dt><code>ownerDocument</code></dt>
      <dd>The <code>Document</code> node over which the method is invoked.</dd>
    <dt><a href="#publicId"><code>publicId</code></a> and
    <a href="#systemId"><code>systemId</code></a></dt>
      <dd><code>null</code>.</dd>
      <dd class=ed>@@ publicId and systemId should be empty string?</dd>
    <dt class=ed>@@ Ensure all attributes are defined</dt>
    </dl>
  </dd>
</dl>

<p>These methods <em class=rfc2119>MUST</em> raise an
<code>INVALID_CHARACTER_ERR</code> if <var>name</var> is <em>not</em> a legal 
<code>Name</code>
<cite class="bibref normative">[<a href="#ref-XML10">XML10</a>,
<a href="#ref-XML11">XML11</a>]</cite> according to the <abbr>XML</abbr> 
version specified in the <code>xmlVersion</code> attribute of the 
<a href="#Document"><code>Document</code></a> node.</p>

<div class="note memo">
<p>Non$B!>(B<abbr>XML</abbr> case is intentionally left unspecified for now,
since <abbr>DOM</abbr> Level 3 Core specification
<cite class="bibref normative">[<a href="#ref-DOM3CORE">DOM3CORE</a>]</cite>
does not define it for <a href="#Document"><code>Document</code></a> 
methods.</p>

<p><var>name</var> does not have to be a namespace qualified name.</p>
</div>

</div>


<div class=section id=section-documenttype>
<h3>Modifications to the <code id=DocumentType>DocumentType</code> 
Interface</h3>

<p>A <a href="#DocumentType"><code>DocumentType</code></a> interface 
<em class=rfc2119>MAY</em> contain zero or more
<a href="#ProcessingInstruction"><code>ProcessingInstruction</code></a>
nodes in the <code>NodeList</code> object contained in the 
<code>childNodes</code> attribute of the 
<a href="#DocumentType"><code>DocumentType</code></a> node.</p>

<p>If the <a href="#DocumentType"><code>DocumentType</code></a> node is created
during the process to create a <abbr>DOM</abbr> from an <abbr>XML</abbr>
document, the <code>NodeList</code> object in the <code>childNodes</code> 
object <em class=rfc2119>MUST</em> contains the 
<a href="#ProcessingInstruction"><code>ProcessingInstruction</code></a>
nodes representing the processing instructions in the document type
definition of the document processed
<cite class="bibref normative">[<a href="#ref-XML10">XML10</a>,
<a href="#ref-XML11">XML11</a>]</cite> by the <abbr>XML</abbr> processor.  If
the <a href="#DocumentType"><code>DocumentType</code></a> node is marked as 
<a href="#read-only">read$B!>(Bonly</a>, then all the child nodes 
<em class=rfc2119>MUST</em> also be marked as 
<a href="#read-only">read$B!>(Bonly</a>.</p>

<p>If a <a href="#DocumentType"><code>DocumentType</code></a> node is created
from a
<a href="http://www.w3.org/TR/2004/REC-xml-infoset-20040204/#infoitem.doctype">document
type declaration information item</a>
<cite class="bibref normative">[<a href="#ref-INFOSET">INFOSET</a>]</cite>,
the <code>NodeList</code> object in the <code>childNodes</code> attribute
of the node <em class=rfc2119>MUST</em> contain the
<a href="#ProcessingInstruction"><code>ProcessingInstruction</code></a> nodes
created from the processing instruction information items in the list in the
[children] property of the document type declaration item in the same 
order.</p>

<p>If a <a href="#DocumentType"><code>DocumentType</code></a> node is mapped to
a document type declaration information item, the list in the [children] 
property <em class=rfc2119>MUST</em> contain the processng instruction
information items created from the 
<a href="#ProcessingInstruction"><code>ProcessingInstruction</code></a> nodes
in the <code>NodeList</code> object in the <code>childNodes</code> attribute
of the <a href="#DocumentType"><code>DocumentType</code></a> node.</p>

<p>The implementation of the 
<a href="#DocumentType"><code>DocumentType</code></a> interface
<em class=rfc2119>MUST</em> be modified as following:</p>
<pre class=idl><code>// Modifications to the DocumentType interface
  attribute DOMString <a href="#publicId">publicId</a>;
  attribute DOMString <a href="#systemId">systemId</a>;

  attribute DOMString <a href="#internalSubset">internalSubset</a>;
</code></pre>

<p>The <code id=publicId>publicId</code> attribute and the 
<code id=systemId>systemId</code> attribute of
<a href="#DocumentType"><code>DocumentType</code></a>,
<a href="#Entity"><code>Entity</code></a>, and
<a href="#Notation"><code>Notation</code></a> interfaces are no longer
read$B!>(Bonly.</p>

<p>On setting, the attribute <em class=rfc2119>MUST</em> raise a
<code>NO_MODIFICATION_ALLOWED_ERR</code> if the node is 
<a href="#read-only">read$B!>(Bonly</a>.  Otherwise, it <em class=rfc2119>MUST</em>
set the specified value as the value associated to the attribute.  No 
normalization, relative reference resolution, or lexical validation is 
performed. <span class=ed>@@ If the new value is <code>null</code>, should an e
mpty string be set?</span></p>

<div class="note memo">
<p>Setting an invalid identifier might make the node unserializable.
Setting a public identifier while leaveing system identifier unspecified 
would also make the <a href="#DocumentType"><code>DocumentType</code></a>
or <a href="#Entity"><code>Entity</code></a> node unserializable.</p>
</div>

<div class=ed>
<p>ISSUE: In HTML5, Firefox 1.5, and Opera 9, not specifying public or system identifier results in empty strings.</p>
</div>

<p>The <code id=internalSubset>internalSubset</code> attribute of the
<a href="#DocumentType"><code>DocumentType</code></a> interface is no longer
read$B!>(Bonly.</p>

<p>On setting, the attribute <em class=rfc2119>MUST</em> raise a
<code>NO_MODIFICATION_ALLOWED_ERR</code> if the node is 
<a href="#read-only">read$B!>(Bonly</a>.  Otherwise, it <em class=rfc2119>MUST</em>
set the specified value as the value associated to the attribute.  No 
normalization, or lexical validation is performed.  <span class=ed>@@ If the 
new value is <code>null</code>, should an empty string be set?</span></p>

</div>

<div class=section id=section-documenttypedefinition>
<h3>The <code>DocumentTypeDefinition</code> Interface</h3>

<p>The <a href="#DocumentType"><code>DocumentType</code></a> nodes 
<em class=rfc2119>MUST</em> also implement the
<a href="#DocumentTypeDefinition"><code>DocumentTypeDefinition</code></a>
interface.</p>

<p>An instance of the 
<a href="#DocumentTypeDefinition"><code>DocumentTypeDefinition</code></a>
interface <em class=rfc2119>MUST</em> be able to be obtained by using 
binding$B!>(Bspecific casting methods on an instance of the 
<a href="#DocumentType"><code>DocumentType</code></a> interface (if such
casting methods are available) or by using the method <code>getFeature</code> 
with parameter values
<a href="#feature-XDoctype"><code>http://suika.fam.cx/www/2006/feature/XDoctype</code></a>
and <a href="#feature-XDoctype-3.0"><code>3.0</code></a> respectively (if the 
<a href="#DocumentType"><code>DocumentType</code></a> node supports the
feature <code>Core</code> version <code>3.0</code> 
<cite class="bibref normative">[<a href="#ref-DOM3CORE">DOM3CORE</a>]</cite>).</p>

<div class="note memo">
<p>This interface is a separated interface from the
<a href="#DocumentType"><code>DocumentType</code></a>, not a set of extensions
to the <a href="#DocumentType"><code>DocumentType</code></a>,
for the historical reason.</p>

<p class=ed>Should the interface be merged with
<a href="#DocumentType"><code>DocumentType</code></a>?</p>
</div>

<p>The 
<a href="#DocumentTypeDefinition"><code>DocumentTypeDefinition</code></a> 
interface <em class=rfc2119>MUST</em> be implemented as following:</p>
<pre class=idl><code>interface <dfn id=DocumentTypeDefinition><code>DocumentTypeDefinition</code></dfn> {
  readonly attribute NamedNodeMap <a href="#elementTypes">elementTypes</a>;
  readonly attribute NamedNodeMap <a href="#generalEntities">generalEntities</a>;
  readonly attribute NamedNodeMap <a href="#notations">notations</a>;

  <a href="#ElementTypeDefinition">ElementTypeDefinition</a> <a href="#getElementTypeDefinitionNode">getElementTypeDefinitionNode</a>
    (in DOMString <a href="#getElementTypeDefinitionNode-name"><var>name</var></a>);
  <a href="#Entity">Entity</a> <a href="#getGeneralEntityNode">getGeneralEntityNode</a>
    (in DOMString <a href="#getGeneralEntityNode-name"><var>name</var></a>);
  <a href="#Notation">Notation</a> <a href="#getNotationNode">getNotationNode</a>
    (in DOMString <a href="#getNotationNode-name"><var>name</var></a>);

  void <a href="#setElementTypeDefinitionNode">setElementTypeDefinitionNode</a>
    (in DOMString <a href="#setElementTypeDefinitionNode-node"><var>node</var></a>)
    raises (DOMException);
  void <a href="#setGeneralEntityNode">setGeneralEntityNode</a>
    (in DOMString <a href="#setGeneralEntityNode-node"><var>node</var></a>)
    raises (DOMException);
  void <a href="#setNotationNode">setNotationNode</a>
    (in DOMString <a href="#setNotationNode-node"><var>node</var></a>)
    raises (DOMException);
}</code></pre>

<dl>
<dt><dfn id=elementTypes class=dom-attr><code>elementTypes</code></dfn> of
type <code>NamedNodeMap</code>, read$B!>(Bonly</dt>
  <dd><p>A <a href="#live">live</a> <code>NamedNodeMap</code> object that
  contains all the element type definitions belonging to the 
  <a href="#DocumentType"><code>DocumentType</code></a> node.</p>

  <p>On getting, the attribute <em class=rfc2119>MUST</em> return the
  <code>NamedNodeMap</code> object that contains all the 
  <a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a>
  nodes belonging to the <code>DocumentType</code> node.  The
  <code>NamedNodeMap</code> object <em class=rfc2119>MUST</em> be read$B!>(Bonly
  if and only if the node is <a href="#read-only">read$B!>(Bonly</a>.  The
  <code>NamedNodeMap</code> object <em class=rfc2119>MUST</em> be 
  <a href="#live">live</a>.</p>

  <p>If the <code>DocumentType</code> node is created during the process
  to create a <abbr>DOM</abbr> from an <abbr>XML</abbr> document, the following
  requirements are applied:  The <code>NamedNodeMap</code> object in the
  <a href="#elementTypes"><code>elementType</code></a> attribute 
  <em class=rfc2119>MUST</em> be so transformed that the object contains
  the <code>ElementTypeDefinition</code> nodes for the element types
  whose name is presented as the <code>Name</code> of the element type or
  attribute definition list declarations processed
  <cite class="bibref normative">[<a href="#ref-XML10">XML10</a>,
  <a href="#ref-XML11">XML11</a>]</cite> by the <abbr>XML</abbr>
  processor.  If there are more than one element type declarations for an
  element type, then the declarations other than the first one 
  <em class=rfc2119>MUST</em> be ignored for the purpose of constructing the
  <code>NamedNodeMap</code> object.</p></dd>
<dt><dfn id=generalEntities class=dom-attr><code>generalEntities</code></dfn>
of type <code>NamedNodeMap</code>, read$B!>(Bonly</dt>
  <dd><p>A <a href="#live">live</a> <code>NamedNodeMap</code> object that
  contains all the general entities belonging to the 
  <a href="#DocumentType"><code>DocumentType</code></a> node.</p>
  
  <p>On getting, the attribute <em class=rfc2119>MUST</em> return the 
  same value as the <code>entities</code> attribute (defined in the
  <a href="#DocumentType"><code>DocumentType</code></a> interface) of the same
  node.</p>

  <div class="note memo">
    <p>This attribute is part of the interface for historical reason.</p>
  </div></dd>
<!--
All entities declared in the document type definition
contained in or referenced from the document entity
might not be exposed through this collection, depending
on the information provided by the XML processor for
the DOM implementation.  In particular, it might not
contain any entity if entity references are expanded
at the parse time.  An implementation [['''MUST NOT''']]
expose an [CODE(DOMi)@en[[[Entity]]]] node whose [CODE(DOMa)@en[[[nodeName]]]]
is equal to the name of one of five predefined general entities in
XML through the collection as the result of parsing of an XML
document that has no error.  Duplicate entity declarations are also discarded.

The attribute [['''MUST''']] return the [CODE(DOMi)@en[[[NamedNodeMap]]]]
object that contains all the [CODE(DOMi)@en[[[Entity]]]] nodes
representing general entities belong to the node.  The returned 
[CODE(DOMi)@en[[[NamedNodeMap]]]] object [['''MUST''']] be read-only if and only if 
the node is read-only. Note that the [CODE(DOMi)@en[[[NamedNodeMap]]]] object is live
and therefore any change of read-only flag on the node is immediately
reflected by that of the object.
-->
<dt><dfn id=notations class=dom-attr><code>notations</code></dfn> of type
<code>notations</code>, read$B!>(Bonly</code>
  <dd><p>A <a href="#live">live</a> <code>NamedNodeMap</code> object that
  contains all the notations belonging to the
  <a href="#DocumentType"><code>DocumentType</code></a> node.</p>
  
  <p>On getting, the attribute <em class=rfc2119>MUST</em> return the 
  same value as the <code>notations</code> attribute (defined in the
  <a href="#DocumentType"><code>DocumentType</code></a> interface) of the same
  node.</p>

  <div class="note memo">
    <p>This attribute is part of the interface for historical reason.</p>
    <p>Implementations are not required to implement the 
    <code>notations</code> attribute twice (for 
    <a href="#DocumentType"><code>DocumentType</code></a> and
    <a href="#DocumentTypeDefinition"><code>DocumentTypeDefinition</code></a>
    interfaces); they share exactly same definition.</p>
  </div></dd>
<!--
If the [CODE(DOMi)@en[[[DocumentTypeDefinition]]]] node is
created from an XML document, duplicate notation declarations, if any, in DTD 
[['''MUST NOT''']] result in a node in the [CODE(DOMi)@en[[[NamedNodeMap]]]]
object and only the first declaration [['''MUST''']] be
made available as a [CODE(DOMi)@en[[[Notation]]]] node.

;; This definition is based on one for the 
[CODE(DOMa)@en[[[notations]]]] attribute of the
[CODE(DOMi)@en[[[DocumentType]]]] interface in DOM XML module.
Since duplication is violation to the Validity Constraint,
XML parsers might vary on how notations are notified to
the application.  In particular, [CODE(InfoProp)@en[[[notations]]]]
property of the document information item in XML Information Set
is so defined that in case ''any'' notation is declared for 
multiple times then the property has no value.

The attribute [['''MUST''']] return the [CODE(DOMi)@en[[[NamedNodeMap]]]]
object that contains all the [CODE(DOMi)@en[[[Notation]]]] nodes
representing notations belong to the node.  The returned 
[CODE(DOMi)@en[[[NamedNodeMap]]]] object [['''MUST''']] be read-only if and only if 
the node is read-only. Note that the [CODE(DOMi)@en[[[NamedNodeMap]]]] object is live
and therefore any change of read-only flag on the node is immediately
reflected by that of the object.
-->
<dt><dfn id=getElementTypeDefinitionNode class=dom-method><code>getElementTypeDefinitionNode</code></dfn>,
method</dt>
  <dd><p>Returns the
  <a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a> node
  with the specified name.</p>

  <p>The
  <dfn id=getElementTypeDefinitionNode-name class=dom-param><var>name</var></dfn>
  parameter is the name of the element type.</p>

  <p>When invoked, the method <em class=rfc2119>MUST</em> return the 
  <a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a> node,
  whose <a href="#nodeName"><code>nodeName</code></a> is equal to
  <a href="#getElementTypeDefinitionNode-name"><var>name</var></a>, in the
  <code>NamedNodeMap</code> object in the
  <a href="#elementTypes"><code>elementTypes</code></a> attribute of the
  node.  If there is no such node, it <em class=rfc2119>MUST</em> return
  <code>null</code>.</p></dd>
<dt><dfn id=getElementTypeDefinitionNode class=dom-method><code>getElementTypeDefinitionNode</code></dfn>,
method</dt>
  <dd><p>Returns the
  <a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a> node
  with the specified name.</p>

  <p>The
  <dfn id=getElementTypeDefinitionNode-name class=dom-param><var>name</var></dfn>
  parameter is the name of the element type.</p>

  <p>When invoked, the method <em class=rfc2119>MUST</em> return the 
  <a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a> node,
  whose <a href="#nodeName"><code>nodeName</code></a> is equal to
  <a href="#getElementTypeDefinitionNode-name"><var>name</var></a>, in the
  <code>NamedNodeMap</code> object in the
  <a href="#elementTypes"><code>elementTypes</code></a> attribute of the
  node.  If there is no such node, it <em class=rfc2119>MUST</em> return
  <code>null</code>.</p></dd>
<dt><dfn id=getGeneralEntityNode class=dom-method><code>getGeneralEntityNode</code></dfn>,
method</dt>
  <dd><p>Returns the <a href="#Entity"><code>Entity</code></a> node
  with the specified name.</p>

  <p>The <dfn id=getEntityNode-name class=dom-param><var>name</var></dfn>
  parameter is the name of the general entity.</p>

  <p>When invoked, the method <em class=rfc2119>MUST</em> return the 
  <a href="#Entity"><code>Entity</code></a> node,
  whose <a href="#nodeName"><code>nodeName</code></a> is equal to
  <a href="#getEntityNode-name"><var>name</var></a>, in the
  <code>NamedNodeMap</code> object in the
  <a href="#entities"><code>entities</code></a> attribute of the
  node.  If there is no such node, it <em class=rfc2119>MUST</em> return
  <code>null</code>.</p></dd>
<dt><dfn id=getNotationNode class=dom-method><code>getNotationNode</code></dfn>,
method</dt>
  <dd><p>Returns the <a href="#Notation"><code>Notation</code></a> node
  with the specified name.</p>

  <p>The
  <dfn id=getNotationNode-name class=dom-param><var>name</var></dfn>
  parameter is the name of the notation.</p>

  <p>When invoked, the method <em class=rfc2119>MUST</em> return the 
  <a href="#Notation"><code>Notation</code></a> node,
  whose <a href="#nodeName"><code>nodeName</code></a> is equal to
  <a href="#getNotationNode-name"><var>name</var></a>, in the
  <code>NamedNodeMap</code> object in the
  <a href="#notations"><code>notations</code></a> attribute of the
  node.  If there is no such node, it <em class=rfc2119>MUST</em> return
  <code>null</code>.</p></dd>
<dt><dfn id=setElementTypeDefinitionNode class=dom-method><code>setElementTypeDefinitionNode</code></dfn>,
method</dt>
  <dd class=ed>@@</dd>
<dt><dfn id=setGeneralEntityNode class=dom-method><code>setGeneralEntityNode</code></dfn>,
method</dt>
  <dd class=ed>@@</dd>
<dt><dfn id=setNotationNode class=dom-method><code>setNotationNode</code></dfn>,
method</dt>
  <dd class=ed>@@</dd>
</dl>

<div class=ed>
<p>A future version of this interface might define the
<code>parameterEntities</code> and getter/setter for parameter entities.
</div>

</div>

<div class=section id=section-elementtypedefinition>
<h3>The <code>ElementTypeDefinition</code> Interface</h3>

<p>The nodes of type 
<a href="#ELEMENT_TYPE_DEFINITION_NODE"><code>ELEMENT_TYPE_DEFINITION_NODE</code></a>
represents an element type definition.  Such a node 
<em class=rfc2119>MUST</em> implement the
<a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a> 
interface, which extends the <a href="#Node"><code>Node</code></a> 
interface.</p>

<p>An element type definition represents a definition of the element type.
It is corresponding to the element type declaration in <abbr>DTD</abbr>.
However, an 
<a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a> node 
does not represent the element type definition in <abbr>DTD</abbr> itself.  
Even if there are more than one element type declarations for an element type 
in <abbr>DTD</abbr>, the result <abbr>DOM</abbr> will contain only an
<a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a>
node for that element type.  In addition, if there are attribute definition
declarations for an element type, even when there is no element type
declaration for that element type, the <abbr>DOM</abbr> will contain an
<a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a>
node for that element type.</p>

<p>An <a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a>
node cannot be a child of any node.  An
<a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a> node
cannot have any child node.</p>

<p>The <a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a> 
interface <em class=rfc2119>MUST</em> be implemented as following:</p>
<pre class=idl><code>interface <dfn id=ElementTypeDefinition><code>ElementTypeDefinition</code></dfn> : <a href="#Node">Node</a> {
  readonly attribute <a href="#DocumentType">DocumentType</a> <a href="#ownerDocumentTypeDefinition">ownerDocumentTypeDefinition</a>;

  readonly attribute NamedNodeMap <a href="#attributeDefinitions">attributeDefinitions</a>;
  <a href="#AttributeDefinition">AttributeDefinition</a> <a href="#getAttributeDefinitionNode">getAttributeDefinitionNode</a>
    (in DOMString <a href="#getAttributeDefinitionNode-name"><var>name</var></a>);
  void <a href="#setAttributeDefinitionNode">setAttributeDefinitionNode</a>
    (in <a href="#AttributeDefinition">AttributeDefinition</a> <a href="#setAttributeDefinitionNode-name"><var>node</var></a>)
    raises (DOMException);
}</code></pre>

<dl>
<dt><dfn id=ownerDocumentTypeDefinition class=dom-attr><code>ownerDocumentTypeDefinition</code></dfn>
of type <a href="#DocumentType"><code>DocumentType</code></a>, read$B!>(Bonly</dt>
  <dd><p>The 
  <a href="#ownerDocumentTypeDefinition"><code>ownerDocumentTypeDefinition</code></a>
  attribute of
  <a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a>,
  <a href="#Entity"><code>Entity</code></a>, and
  <a href="#Notation"><code>Notation</code></a> interfaces contain the
  <a href="#DocumentType"><code>DocumentType</code></a> node to which the node
  is attached.</p>

  <p>On getting, the attribute <em class=rfc2119>MUST</em> return a
  <a href="#DocumentType"><code>DocumentType</code></a> node.  It
  <em class=rfc2119>MUST</em> be such a node that whose
  <a href="#elementTypes"><code>elementTypes</code></a> (for an
  <a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a>
  node), <a href="#entities"><code>entities</code></a> (for an
  <a href="#Entity"><code>Entity</code></a> node), or 
  <a href="#notations"><code>notations</code></a> (for a
  <a href="#Notation"><code>Notation</code></a> node) attribute contains the
  <code>NamedNodeMap</code> object that contains the node.  If there is no such
  a <a href="#DocumentType"><code>DocumentType</code></a> node,
  then <code>null</code> <em class=rfc2119>MUST</em> be returned.</p></dd>
<dt><dfn id=attributeDefinitions class=dom-attr><code>attributeDefinitions</code></dfn>
of type NamedNodeMap, read$B!>(Bonly</dt>
  <dd><p>A <a href="#live">live</a> <code>NamedNodeMap</code> object that
  contains all the attribute definitions belonging to the 
  <a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a>
  node.</p>

  <p>On getting, the attribute <em class=rfc2119>MUST</em> return the
  <code>NamedNodeMap</code> object that contains all the
  <a href="#AttributeDefinition"><code>AttributeDefinition</code></a> node
  belonging to the
  <a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a> node.
  The <code>NamedNodeMap</code> object <em class=rfc2119>MUST</em> be 
  read$B!>(Bonly if and only if the node is <a href="#read-only">read$B!>(Bonly</a>.  
  The <code>NamedNodeMap</code> object <em class=rfc2119>MUST</em> be 
  <a href="#live">live</a>.</p>
  
  <p>If the
  <a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a> node
  is created during the process to create a <abbr>DOM</abbr> from an
  <abbr>XML</abbr> document, the following requirements are applied:  The
  <code>NamedNodeMap</code> object in the 
  <a href="#attributeDefinitions"><code>attributeDefinitions</code></a>
  attribute <em class=rfc2119>MUST</em> be so transformed that the object
  contains the
  <a href="#AttributeDefinition"><code>AttributeDefinition</code></a> node
  corresponding to the attribute definitions in the attribute definition
  list declarations processed
  <cite class="bibref normative">[<a href="#ref-XML10">XML10</a>,
  <a href="#ref-XML11">XML11</a>]</cite> by the <abbr>XML</abbr> processor and
  associated to the element type represented by the node.  If there are more
  than one attribute definitions for an attribute, then the definitions other
  than the first one <em class=rfc2119>MUST</em> be ignored for the purpose
  of constructing the <code>NamedNodeMap</code> object.</p></dd>
<dt><dfn id=getAttributeDefinitionNode class=dom-method><code>getAttributeDefinitionNode</code></dfn>,
method</dt>
  <dd><p>Return the
  <a href="#AttributeDefinition"><code>AttributeDefinition</code></a> node
  with the specified name.</p>

  <p>The
  <dfn id=getAttributeDefinitionNode-name class=dom-param><var>name</var></dfn>
  parameter is the name of the attribute.</p>

  <p>When invoked, the method <em class=rfc2119>MUST</em> return the
  <a href="#AttributeDefinition"><code>AttributeDefinition</code></a> node,
  whose <a href="#nodeName"><code>nodeName</code></a> attribute value is
  equal to <a href="#getAttributeDefinitionNode-name"><var>name</var></a>,
  in the <code>NamedNodeMap</code> in the 
  <a href="#attributeDefinitions"><code>attributeDefinitions</code></a>
  attribute of the node.  If there is no such node, it 
  <em class=rfc2119>MUST</em> return <code>null</code>.</p></dd>
<dt><dfn id=setAttributeDefinitionNode class=dom-method><code>setAttributeDefinitionNode</code></dfn>,
method</dt>
  <dd class=ed>@@</dd>
</dl>

<div class=ed>
<p>A future version of the specification might define a set of attributes
and methods for representing and accessing to the content model of the 
element type.</p>
</div>
</div>

<div class=section id=section-attributedefinition>
<h3>The <code>AttributeDefinition</code> Interface</h3>

<p>The nodes of type 
<a href="#ATTRIBUTE_DEFINITION_NODE"><code>ATTRIBUTE_DEFINITION_NODE</code></a>
represents an attribute definition.  Such a node 
<em class=rfc2119>MUST</em> implement the
<a href="#AttributeDefinition"><code>AttributeDefinition</code></a> interface,
which extends the <a href="#Node"><code>Node</code></a> interface.</p>

<p>An attribute definition represents a definition of the attribute 
associated to an element type.  It is corresponding to the attribute definition
in the attribute list declaration in <abbr>DTD</abbr>.  However, an
<a href="#AttributeDefinition"><code>AttributeDefinition</code></a> node does 
not represent the attribute definition in <abbr>DTD</abbr> itself.  Even if 
there are more than one attribute definitions for an attribute of an element 
type in <abbr>DTD</abbr>, the result <abbr>DOM</abbr> will contain only an
<a href="#AttributeDefinition"><code>AttributeDefinition</code></a> node for 
that attribute.</p>

<p>An <a href="#AttributeDefinition"><code>AttributeDefinition</code></a>
node cannot be a child of any node.  An
<a href="#AttributeDefinition"><code>AttributeDefinition</code></a> node
can have zero or more child nodes of same kinds as those allowed for
<code>Attr</code> nodes
<cite class="bibref normative">[<a href="#ref-DOM3CORE">DOM3CORE</a>]</cite>.</p>

<p>The <a href="#AttributeDefinition"><code>AttributeDefinition</code></a> 
interface <em class=rfc2119>MUST</em> be implemented as following:</p>
<pre class=idl><code>interface <dfn id=AttributeDefinition><code>AttributeDefinition</code></dfn> : <a href="#Node">Node</a> {
  <span class=comment>// <a href="#DeclaredValueType">DeclaredValueType</a></span>
  const unsigned short <a href="#NO_TYPE_ATTR">NO_TYPE_ATTR</a> = 0;
  const unsigned short <a href="#CDATA_ATTR">CDATA_ATTR</a> = 1;
  const unsigned short <a href="#ID_ATTR">ID_ATTR</a> = 2;
  const unsigned short <a href="#IDREF_ATTR">IDREF_ATTR</a> = 3;
  const unsigned short <a href="#IDREFS_ATTR">IDREFS_ATTR</a> = 4;
  const unsigned short <a href="#ENTITY_ATTR">ENTITY_ATTR</a> = 5;
  const unsigned short <a href="#ENTITIES_ATTR">ENTITIES_ATTR</a> = 6;
  const unsigned short <a href="#NMTOKEN_ATTR">NMTOKEN_ATTR</a> = 7;
  const unsigned short <a href="#NMTOKENS_ATTR">NMTOKENS_ATTR</a> = 8;
  const unsigned short <a href="#NOTATION_ATTR">NOTATION_ATTR</a> = 9;
  const unsigned short <a href="#ENUMERATION_ATTR">ENUMERATION_ATTR</a> = 10;
  const unsigned short <a href="#UNKNOWN_ATTR">UNKNOWN_ATTR</a> = 11;

  <span class=comment>// <a href="#DefaultValueType">DefaultValueType</a></span>
  const unsigned short <a href="#UNKNOWN_DEFAULT">UNKNOWN_DEFAULT</a> = 0;
  const unsigned short <a href="#FIXED_DEFAULT">FIXED_DEFAULT</a> = 1;
  const unsigned short <a href="#REQUIRED_DEFAULT">REQUIRED_DEFAULT</a> = 2;
  const unsigned short <a href="#IMPLIED_DEFAULT">IMPLIED_DEFAULT</a> = 3;
  const unsigned short <a href="#EXPLICIT_DEFAULT">EXPLICIT_DEFAULT</a> = 4;
  
  readonly attribute <a href="#ElementTypeDefinition">ElementTypeDefinition</a> <a href="#ownerElementTypeDefinition">ownerElementTypeDefinition</a>;

  readonly attribute unsigned short <a href="#declaredType">declaredType</a>;
  readonly attribute DOMStringList <a href="#allowedTokens">allowedTokens</a>;
  readonly attribute unsigned short <a href="#defaultType">defaultType</a>;
}</code></pre>

<dl>
<dt><dfn id=ownerElementTypeDefinition class=dom-attr><code>ownerElementTypeDefinition</code></dfn>
of type
<a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a>, 
read$B!>(Bonly</dt>
  <dd><p>The
  <a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a> to
  which the <a href="#AttributeDefinition"><code>AttributeDefinition</code></a>
  node belongs.</p>

  <p>On getting, the attribute <em class=rfc2119>MUST</em> return an
  <a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a> node.
  It <em class=rfc2119>MUST</em> be such a node that whose
  <a href="#attributeDefinitons"><code>attributeDefinitions</code></a>
  attribute contains the <code>NamedNodeMap</code> object that contains
  the <a href="#AttributeDefinition"><code>AttributeDefinition</code></a>
  node.  If there is no such an 
  <a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a> node,
  then <code>null</code> <em class=rfc2119>MUST</em> be returned.</p>
<dt><dfn id=declaredType class=dom-attr><code>declaredType</code></dfn> of type
<code>unsigned short</code></dt>
  <dd><p>The declared type
  <cite class="bibref normative">[<a href="#ref-XML10">XML10</a>,
  <a href="#ref-XML11">XML11</a>]</cite> of the attribute.  It is expected that
  this attribute contains a value from the definition group
  <a href="#DeclaredValueType"><code>DeclaredValueType</code></a>.</p>

  <p>On getting, the attribute <em class=rfc2119>MUST</em> return the
  value associated to this attribute.</p>

  <p>On setting, the attribute <em class=rfc2119>MUST</em> raise a
  <code>NO_MODIFICATION_ALLOWED_ERR</code> if the
  <a href="#AttributeDefinition"><code>AttributeDefinition</code></a> node
  is <a href="#read-only">read$B!>(Bonly</a>.  Otherwise, it
  <em class=rfc2119>MUST</em> set the specified value as the value
  associated to this attribute.</p>

  <p>If the <code>AttributeDefinition</code> node is created during the process
  to create a <abbr>DOM</abbr> from an <abbr>XML</abbr> document, an
  appropriate value from the
  <a href="#DeclaredValueType"><code>DeclaredValueType</code></a> constant
  group <em class=rfc2119>MUST</em> be set to the attribute.</p>

  <!-- DeclaredValueType -->
<p>The definition group 
<dfn id=DeclaredValueType><code>DeclaredValueType</code></dfn> contains
integers indicating the declared type of attributes.  The definition
group contains the following constants:</p>

<table>
<thead>
<tr><th scope=col>Name<th scope=col>Value<th scope=col>Description</tr>
</thead>
<tbody>
<tr>
<th scope=row><dfn id=NO_TYPE_ATTR class=dom-const><code>NO_TYPE_ATTR</code>
<td><code>0</code><td><a href="http://www.w3.org/TR/2004/REC-xml-infoset-20040204/#intro.null">No
value</a>
<cite class="bibref normative">[<a href="#ref-INFOSET">INFOSET</a>]</cite>.</tr>
<tr>
<th scope=row><dfn id=CDATA_ATTR class=dom-const><code>CDATA_ATTR</code>
<td><code>1</code><td><code>CDATA</code>
<cite class="bibref normative">[<a href="#ref-XML10">XML10</a>,
<a href="#ref-XML11">XML11</a>]</cite>.</tr>
<tr>
<th scope=row><dfn id=ID_ATTR class=dom-const><code>ID_ATTR</code>
<td><code>2</code><td><code>ID</code>
<cite class="bibref normative">[<a href="#ref-XML10">XML10</a>,
<a href="#ref-XML11">XML11</a>]</cite>.</tr>
<tr>
<th scope=row><dfn id=IDREF_ATTR class=dom-const><code>IDREF_ATTR</code>
<td><code>3</code><td><code>IDREF</code>
<cite class="bibref normative">[<a href="#ref-XML10">XML10</a>,
<a href="#ref-XML11">XML11</a>]</cite>.</tr>
<tr>
<th scope=row><dfn id=IDREFS_ATTR class=dom-const><code>IDREFS_ATTR</code>
<td><code>4</code><td><code>IDREFS</code>
<cite class="bibref normative">[<a href="#ref-XML10">XML10</a>,
<a href="#ref-XML11">XML11</a>]</cite>.</tr>
<tr>
<th scope=row><dfn id=ENTITY_ATTR class=dom-const><code>ENTITY_ATTR</code>
<td><code>5</code><td><code>ENTITY</code>
<cite class="bibref normative">[<a href="#ref-XML10">XML10</a>,
<a href="#ref-XML11">XML11</a>]</cite>.</tr>
<tr>
<th scope=row><dfn id=ENTITIES_ATTR class=dom-const><code>ENTITIES_ATTR</code>
<td><code>6</code><td><code>ENTITIES</code>
<cite class="bibref normative">[<a href="#ref-XML10">XML10</a>,
<a href="#ref-XML11">XML11</a>]</cite>.</tr>
<tr>
<th scope=row><dfn id=NMTOKEN_ATTR class=dom-const><code>NMTOKEN_ATTR</code>
<td><code>7</code><td><code>NMTOKEN</code>
<cite class="bibref normative">[<a href="#ref-XML10">XML10</a>,
<a href="#ref-XML11">XML11</a>]</cite>.</tr>
<tr>
<th scope=row><dfn id=NMTOKENS_ATTR class=dom-const><code>NMTOKENS_ATTR</code>
<td><code>8</code><td><code>NMTOKENS</code>
<cite class="bibref normative">[<a href="#ref-XML10">XML10</a>,
<a href="#ref-XML11">XML11</a>]</cite>.</tr>
<tr>
<th scope=row><dfn id=NOTATION_ATTR class=dom-const><code>NOTATION_ATTR</code>
<td><code>9</code><td><code>NOTATION</code>
<cite class="bibref normative">[<a href="#ref-XML10">XML10</a>,
<a href="#ref-XML11">XML11</a>]</cite>.</tr>
<tr>
<th scope=row><dfn id=ENUMERATION_ATTR class=dom-const><code>ENUMERATION_ATTR</code>
<td><code>10</code><td>Enumeration
<cite class="bibref normative">[<a href="#ref-XML10">XML10</a>,
<a href="#ref-XML11">XML11</a>]</cite>.</tr>
<tr>
<th scope=row><dfn id=UNKNOWN_ATTR class=dom-const><code>UNKNOWN_ATTR</code>
<td><code>11</code><td><a href="http://www.w3.org/TR/2004/REC-xml-infoset-20040204/#intro.null">Unknown</a>,
because no declaration for the attribute has been read but the 
<a href="http://www.w3.org/TR/2004/REC-xml-infoset-20040204/#infoitem.document">[all declaration processed]</a>
property
<cite class="bibref normative">[<a href="#ref-INFOSET">INFOSET</a>]</cite>
would be false.</tr>
</tbody>
</table>

<p>If no attribute type information is available, or if the source
of the information does not distinguish 
<a href="http://www.w3.org/TR/2004/REC-xml-infoset-20040204/#intro.null">no
value</a> and
<a href="http://www.w3.org/TR/2004/REC-xml-infoset-20040204/#intro.null">unknown</a>
<cite class="bibref normative">[<a href="#ref-INFOSET">INFOSET</a>]</cite>, 
then the value
<a href="#NO_TYPE_ATTR"><code>NO_TYPE_ATTR</code></a> 
<em class=rfc2119>MUST</em> be used.</p>

<div class="note memo">
<p>An <a href="#AttributeDefinition"><code>AttributeDefinition</code></a> node
created by the 
<a href="#createAttributeDefinition"><code>createAttributeDefinition</code></a>
method has its <a href="#declaredType"><code>declaredType</code></a> attribute
set to <a href="#NO_TYPE_ATTR"><code>NO_TYPE_ATTR</code></a>.</p>
</div>

<p>If the source of the information does not distinguish
<a href="http://www.w3.org/TR/2004/REC-xml-infoset-20040204/#intro.null">no
value</a> and/or
<a href="http://www.w3.org/TR/2004/REC-xml-infoset-20040204/#intro.null">unknown</a>
<cite class="bibref normative">[<a href="#ref-INFOSET">INFOSET</a>]</cite> and
<code>CDATA</code>
<cite class="bibref normative">[<a href="#ref-XML10">XML10</a>,
<a href="#ref-XML11">XML11</a>]</cite>, then the value
<a href="#CDATA_ATTR"><code>CDATA_ATTR</code></a> <em class=rfc2119>MUST</em>
be used.</p>

<p>In Perl binding <span class=ed>[PERLBINDING]</span>, the
<code>Attr</code> nodes <em class=rfc2119>MUST</em> implement the
<a href="#DeclaredValueType"><code>DeclaredValueType</code></a>
definition group.</p>

  </dd>
<dt><dfn id=allowedTokens class=dom-attr><code>allowedTokens</code></dfn> of
type <code>DOMStringList</code>, read$B!>(Bonly</dt>
  <dd><p>The list of allowed attribute values.</p>

  <p>On getting, the attribute <em class=rfc2119>MUST</em> return the
  <code>DOMStringList</code> object associated to this attribute.  The object
  <em class=rfc2119>MAY</em> contain zero or more ordered strings, consist of
  zero or more characters respectively, possibly with duplications.  The 
  object <em class=rfc2119>MUST</em> be read$B!>(Bonly if and only if the node
  is <a href="#read-only">read$B!>(Bonly</a>.</p>

  <p>If the <a href="#AttributeDefinition"><code>AttributeDefinition</code></a>
  node is created during the process to create a <abbr>DOM</abbr> from an 
  <abbr>XML</abbr> document, the object <em class=rfc2119>MUST</em> contain
  the names or name tokens allowed for the attribute defined by the node.
  If the document is well$B!>(Bformed, the object will be empty unless 
  the <a href="#declaredType"><code>declaredType</code></a> is 
  <a href="#ENUMERATION_ATTR"><code>ENUMERATION_ATTR</code></a> or
  <a href="#NOTATION_ATTR"><code>NOTATION_ATTR</code></a>.</p>

  <p>If the <a href="#declaredType"><code>declaredType</code></a> is different
  from <a href="#ENUMERATION_ATTR"><code>ENUMERATION_ATTR</code></a> or
  <a href="#NOTATION_ATTR"><code>NOTATION_ATTR</code></a>, this attribute
  <em class=rfc2119>MUST</em> be ignored for the purpose of serializing
  into (part of) <abbr>XML</abbr> document.</p>

  <div class="note memo">
    <p>When serializing the node it should be noted that the object might
    be empty, might contain duplications, and might contain strings that are
    not names or name tokens.</p>
  </div></dd>
<dt><dfn id=defaultType class=dom-attr><code>defaultType</code></dfn> of
type <code>unsigned short</code></dt>
  <dd><p>The type of the default for the attribute.  It is expected that this 
  attribute contains a value from the definition group
  <a href="#DefaultValueType"><code>DefaultValueType</code></a>.</p>

  <p>On getting, the attribute <em class=rfc2119>MUST</em> return
  the value associated to this attribute.</p>

  <p>On setting, the attribute <em class=rfc2119>MUST</em> raise a
  <code>NO_MODIFICATION_ALLOWED_ERR</code> if the
  <a href="#AttributeDefinition"><code>AttributeDefinition</code></a> node
  is <a href="#read-only">read$B!>(Bonly</a>.  Otherwise, it
  <em class=rfc2119>MUST</em> set the specified value as the value
  associated to this attribute.</p>

  <p>If the 
  <a href="#AttributeDefinition"><code>AttributeDefinition</code></a> node is
  created during the process to create a <abbr>DOM</abbr> from an
  <abbr>XML</abbr> document, an appropriate value from the
  <a href="#DefaultValueType"><code>DefaultValueType</code></a> definition
  group <em class=rfc2119>MUST</em> be set to the attribute.</p>

  <!-- DefaultValueType -->
  <p>The definition group
  <dfn id=DefaultValueType><code>DefaultValueType</code></dfn>
  contains integers indicating the type of the default for the attribute.
  The definition group contains the following constans:</p>

  <table>
  <thead>
  <tr><th scope=col>Name<th scope=col>Value<th scope=col>Description</tr>
  </thead>
  <tbody>
  <tr>
  <th scope=row><dfn id=UNKNOWN_DEFAULT class=dom-const><code>UNKNOWN_DEFAULT</code></dfn>
  <td><code>0</code><td>Unknown.</tr>
  <tr>
  <th scope=row><dfn id=FIXED_DEFAULT class=dom-const><code>FIXED_DEFAULT</code></dfn>
  <td><code>1</code><td>Provided explicitly and only the value is allowed.
  <cite class="bibref normative">[<a href="#ref-XML10">XML10</a>,
  <a href="#ref-XML11">XML11</a>]</cite>.</tr>
  <tr>
  <th scope=row><dfn id=REQUIRED_DEFAULT class=dom-const><code>REQUIRED_DEFAULT</code></dfn>
  <td><code>2</code><td>No default value and the attribute have to be
  explicitly specified.</tr>
  <tr>
  <th scope=row><dfn id=IMPLIED_DEFAULT class=dom-const><code>IMPLIED_DEFAULT</code></dfn>
  <td><code>3</code><td>Implied
  <cite class="bibref normative">[<a href="#ref-XML10">XML10</a>,
  <a href="#ref-XML11">XML11</a>]</cite>.</tr>
  <tr>
  <th scope=row><dfn id=EXPLICIT_DEFAULT class=dom-const><code>EXPLICIT_DEFAULT</code></dfn>
  <td><code>4</code><td>Provided explicitly.</tr>
  </tbody>
  </table>

  <p>If the source of the default type does not distinguish
  implied and unknown default types, then the value
  <a href="#IMPLIED_DEFAULT"><code>IMPLIED_DEFAULT</code></a>
  <em class=rfc2119>MUST</em> be used.</p>

  <div class="note memo">
  <p>An <a href="#AttributeDefinition"><code>AttributeDefinition</code></a>
  node created by the
  <a href="#createAttributeDefinition"><code>createAttributeDefinition</code></a>
  method has its <a href="#defaultType"><code>defaultType</code></a>
  attribute set to
  <a href="#UNKNOWN_DEFAULT"><code>UNKNOWN_DEFAULT</code></a>.</p>
  </div></dd>
</dl>

</div>

<div class=section id=section-entity>
<h3>Modifications to the <code id=Entity>Entity</code> Interface</h3>

<p>The implementation of the <a href="#Entity"><code>Entity</code></a> 
interface <em class=rfc2119>MUST</em> be modified as following:</p>
<pre class=idl><code>// Modifications to the Entity interface
  attribute DOMString <a href="#publicId">publicId</a>;
  attribute DOMString <a href="#systemId">systemId</a>;
  attribute DOMString <a href="#notationName">notationName</a>;

  // Additions to the Entity interface
  attribute DOMString <a href="#hasReplacementTree">hasReplacementTree</a>;
  readonly attribute <a href="#DocumentType">DocumentType</a> <a href="#ownerDocumentTypeDefinition">ownerDocumentTypeDefinition</a>;

  attribute boolean <a href="#isExternallyDeclared">isExternallyDeclared</a>;
</code></pre>

<p>The <code id=notationName>notationName</code> attribute of the
<a href="#Entity"><code>Entity</code></a> interface is no longer 
read$B!>(Bonly.</p>

<p>On setting, the attribute <em class=rfc2119>MUST</em> raise a
<code>NO_MODIFICATION_ALLOWED_ERR</code> if the node is 
<a href="#read-only">read$B!>(Bonly</a>.  Otherwise, it <em class=rfc2119>MUST</em>
set the specified value as the value associated to the attribute.  No lexical 
validation is performed.  The new value <em class=rfc2119>MAY</em> be 
<code>null</code>.</p>

<dl>
<dt><dfn id=hasReplacementTree class=dom-attr><code>hasReplacementTree</code></dfn>
of type boolean</dt>
  <dd><p>Whether the structure of the replacement text of the entity
  is available via the <code>NodeList</code> object in the
  <code>childNodes</code> attribute of the entity.</p>

  <p>On getting, the attribute <em class=rfc2119>MUST</em> return
  the value associated to this attribute.</p>

  <p>On setting, the attribute <em class=rfc2119>MUST</em> raise a
  <code>NO_MODIFICATION_ALLOWED_ERR</code> if the node is 
  <a href="#read-only">read$B!>(Bonly</a>.  Otherwise, it
  <em class=rfc2119>MUST</em> set the specified value as the 
  value associated to this attribute.</p>

  <div class="note memo">
  <p>The attribute can be set to <code>false</code> even if the 
  <a href="#Entity"><code>Entity</code></a> node has any child node.
  If the attribute is set to <code>false</code>, then any child node of 
  the <a href="#Entity"><code>Entity</code></a> node ought to be ignored,
  say, for the purpose of serialization.</p>
  </div>

  <p>When an <code>EntityReference</code> node is created by cloning
  the replacement subtree of the <a href="#Entity"><code>Entity</code></a> 
  node, if the attribute is set to <code>false</code>, then any descendant
  of the node <em class=rfc2119>MUST</em> be ignored.</p>

  <p>If the <a href="#Entity"><code>Entity</code></a> node is created during 
  the process to create a <abbr>DOM</abbr> from an <abbr>XML</abbr> document,
  the following requirements are applied:  If the entity is an unparsed
  entity, then the attribute <em class=rfc2119>MUST</em> be set to 
  <code>false</code>.  Otherwise, if the entity is an external entity whose
  replacement text is not available, or whose replacement text is not converted
  to a replacement tree, then the attribute <em class=rfc2119>MUST</em> be set
  to <code>false</code>.  Otherwise, the attribute
  <em class=rfc2119>MUST</em> be set to <code>true</code>.</p>

  <div class="note memo">
  <p>An <a href="#Entity"><code>Entity</code></a> node created by the
  <a href="#createGeneralEntity"><code>createGeneralEntity</code></a> method 
  has its <a href="#hasReplacementTree"><code>hasReplacementTree</code></a> 
  attribute set to <code>false</code>.</p>
  </div></dd>
<dt><dfn id=isExternallyDeclared class=dom-attr><code>isExternallyDeclared</code></dfn>
of type boolean</dt>
  <dd><p>Whether the entity is declared by an external entity declaration or 
  not.  If the value is <code>true</code>, the entity is declared in an entity
  declaration in the external subset entity or in an external parameter entity.
  If the value is <code>false</code>, the entity is declared in an entity
  declaration in the internal subset, or the node is created in memory.</p>

  <p>On getting, the attribute <em class=rfc2119>MUST</em> return
  the value associated to this attribute.</p>

  <p>On setting, the attribute <em class=rfc2119>MUST</em> raise a
  <code>NO_MODIFICATION_ALLOWED_ERR</code> if the node is 
  <a href="#read-only">read$B!>(Bonly</a>.  Otherwise, it
  <em class=rfc2119>MUST</em> set the specified value as the value associated
  to this attribute.</p>

  <p>If the <a href="#Entity"><code>Entity</code></a> node is created during
  the process to create a <abbr>DOM</abbr> from an <abbr>XML</abbr> document,
  the following requirements are applied:  If the entity is an unparsed
  entity, then the attribute <em class=rfc2119>MUST</em> be set to 
  <code>false</code>.  Otherwise, i.e. the entity is a parsed entity, then the
  attribute <em class=rfc2119>MUST</em> be set to the value of whether the
  entity is declared by an external markup declaration or not.</p></dd>
</dl>
</div>

<div class=section id=section-notation>
<h3>Modifications to the <code id=Notation>Notation</code> Interface</h3>

<p>The implementation of the <a href="#Notation"><code>Notation</code></a> 
interface <em class=rfc2119>MUST</em> be modified as following:</p>
<pre class=idl><code>// Modifications to the Notation interface
  attribute DOMString <a href="#publicId">publicId</a>;
  attribute DOMString <a href="#systemId">systemId</a>;

  // Addition to the Notation interface
  readonly attribute <a href="#DocumentType">DocumentType</a> <a href="#ownerDocumentTypeDefinition">ownerDocumentTypeDefinition</a>;
</code></pre>
</div>

</div>

<div id="references" class="section reference">
<h2>References</h2>

<div id="normative-references" class="section normative reference">
<h3>Normative References</h3>

<dl>
<dt id=ref-DOM3CORE>DOM3CORE</dt>
  <dd><cite><a href="http://www.w3.org/TR/2004/REC-DOM-Level-3-Core-20040407">Document
  Object Model (<abbr>DOM</abbr>) Level 3 Core Specification, Version 
  1.0</a></cite>, <abbr>W3C</abbr> Recommendation, <time datetime=2004-04-07>7
  April 2004</time>.  <em>This</em> version of the specification is referenced.
  The latest version of the specification is available at
  <code class=uri>&lt;<a href="http://www.w3.org/TR/DOM-Level-3-Core">http://www.w3.org/TR/DOM-Level-3-Core</a>></code>.</dd>
<dt id=ref-HTML5>HTML5</dt>
  <dd><cite><a href="http://whatwg.org/html5"><abbr>HTML</abbr> 5</a></cite>,
  <abbr title="Web Hypertext Application Technology Working Group">WHATWG</abbr>
  Working Draft.  Work in progress.</dd>
<dt id=ref-INFOSET>INFOSET</dt>
  <dd><cite><a href="http://www.w3.org/TR/2004/REC-xml-infoset-20040204"><abbr>XML</abbr>
  Information Set (Second Edition)</a></cite>, <abbr>W3C</abbr> Recommendation,
  <time datetime=2004-02-04>4 February 2004</time>.  <em>This</em> version of
  the specification is referenced.  The latest version of the specification is
  available at
  <code class=uri>&lt;<a href="http://www.w3.org/TR/xml-infoset">http://www.w3.org/TR/xml-infoset</a>></code>.</dd>
<dt id="ref-KEYWORDS">KEYWORDS</dt>
  <dd><cite><a href="urn:ietf:rfc:2119">Key words for use in 
  <abbr>RFCs</abbr> to Indicate Requirement Levels</a></cite>,
  <abbr title="Internet Engineering Task Force">IETF</abbr> 
  <a href="urn:ietf:bcp:14"><abbr title="Best Current Practice">BCP</abbr> 
  14</a>, <abbr title="Request for Comments">RFC</abbr> 2119, 
  <time datetime=1997-03>March 1997</time>.
  <em>This</em> version of the specification is referenced.</dd>
<dt id=ref-XML10">XML10</dt>
  <dd><cite><a href="http://www.w3.org/TR/2006/REC-xml-20060816">Extensible
  Markup Language (<abbr>XML</abbr>) 1.0 (Fourth Edition)</a></cite>,
  <abbr>W3C</abbr> Recommendation, <time datetime=2006-08-16>16 August 
  2006</time>, edited in place <time datetime=2006-09-29>29 September
  2006</time>.  <em>This</em> version of the specification is referenced.  The
  latest version of the specification is available at
  <code class=uri>&lt;<a href="http://www.w3.org/TR/xml">http://www.w3.org/TR/xml</a>&gt;</code>.</dd>
<dt id=ref-XML11>XML11</dt>
  <dd><cite><a href="http://www.w3.org/TR/2006/REC-xml11-20060816/">Extensible
  Markup Language (<abbr>XML</abbr>) 1.1 (Second Edition)</a></cite>,
  <abbr>W3C</abbr> Recommendation, <time datetime=2006-08-16>16 August 
  2006</time>, edited in place <time datetime=2006-09-29>29 September
  2006</time>.  <em>This version of the specification is referenced.  The
  latest version of the specification is available at
  <code class=uri>&lt;<a href="http://www.w3.org/TR/xml11">http://www.w3.org/TR/xml11</a>></code>.</dd>
</dl>
</div>

<div id="informative-references" class="section informative reference">
<h3>Non$B!>(Bnormative References</h3>

<dl>
<dt id=ref-DOM1WD>DOM1WD</dt>
  <dd><cite><a href="http://www.w3.org/TR/WD-DOM-971209/">Document Object
  Model Specification</a></cite>, <abbr>W3C</abbr> Working Draft,
  <time datetime=1997-12-09>9 December 1998</time>.</dd>
  <dd><cite><a href="http://www.w3.org/TR/WD-DOM-19980318/">Document Object
  Model Specification</a></cite>, <abbr>W3C</abbr> Working Draft,
  <time datetime=1998-03-18>18 March 1998</time>.</dd>
  <dd><cite><a href="http://www.w3.org/TR/1998/WD-DOM-19980416/">Document 
  Object Model Specification, Version 1.0</a></cite>, <abbr>W3C</abbr> Working
  Draft, <time datetime=1998-04-16>16 April 1998</time>.</dd>
<dt id=ref-DOM3AS>DOM3AS</dt>
  <dd><cite><a href="http://www.w3.org/TR/2002/NOTE-DOM-Level-3-AS-20020725/">Document
  Object Model (<abbr>DOM</abbr>) Level 3 Abstract Schemas Specification,
  Version 1.0</a></cite>, <abbr>W3C</abbr> Note, <time datetime=2002-07-25>25
  July 2002</time>.  The latest version of the specification is available at
  <code class=uri>&lt;<a href="http://www.w3.org/TR/DOM-Level-3-AS">http://www.w3.org/TR/DOM-Level-3-AS</a>></code>.</dd>
<dt id=ref-XSAPI>XSAPI</dt>
  <dd><cite><a href="http://www.w3.org/Submission/2004/SUBM-xmlschema-api-20040309/"><abbr>XML</abbr>
  Schema <abbr>API</abbr></a></cite>, <abbr>W3C</abbr> Member Submission,
  <time datetime=2004-03-09>9 March 2004</time>.  The latest version of the
  specification is available at
  <code class=uri>&lt;<a href="http://www.w3.org/Submission/xmlschema-api/">http://www.w3.org/Submission/xmlschema-api/</a>></code>.</dd>
</dl>
</div>

</div>

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