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2  <html lang="en" class="formal-specification status-work-in-progress">  <html lang="en" class="formal-specification status-work-in-progress">
3  <head>  <head>
4  <title>manakai's XML Conformance Checking</title>  <title>DOM Document Type Definition Module</title>
5  <link rel="stylesheet" href="http://suika.fam.cx/www/style/html/spec">  <link rel="stylesheet" href="http://suika.fam.cx/www/style/html/spec">
6    <link rel="stylesheet" href="http://suika.fam.cx/www/style/def/dom">
7  <link rel="license" href="http://suika.fam.cx/c/gnu/fdl">  <link rel="license" href="http://suika.fam.cx/c/gnu/fdl">
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8  </head>  </head>
9  <body class="has-abstract">  <body class="has-abstract">
10    
11  <div class="header">  <div class="header">
12  <h1>manakai's <abbr>XML</abbr> Conformance Checking</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=2007-12-08>8 December 2007</time></h2>
14    
15  <dl class="versions-uri">  <dl class="versions-uri">
16  <dt>This Version</dt>  <dt>This Version</dt>
17    <dd><code class="URI">&lt;<a href="http://suika.fam.cx/www/markup/xml/xmlcc/xmlcc-work"    <dd><code class="URI">&lt;<a href="http://suika.fam.cx/www/markup/xml/domdtdef/domdtdef-work"
18        >http://suika.fam.cx/www/markup/xml/xmlcc/xmlcc-work</a>&gt;</code></dd>        >http://suika.fam.cx/www/markup/xml/domdtdef/domdtdef-work</a>&gt;</code></dd>
19  <dt>Latest Version</dt>  <dt>Latest Version</dt>
20    <dd><code class="URI">&lt;<a href="http://suika.fam.cx/www/markup/xml/xmlcc/xmlcc"    <dd><code class="URI">&lt;<a href="http://suika.fam.cx/www/markup/xml/domdtdef/domdtdef"
21        >http://suika.fam.cx/www/markup/xml/xmlcc/xmlcc</a>&gt;</code></dd>        >http://suika.fam.cx/www/markup/xml/domdtdef/domdtdef</a>&gt;</code></dd>
22  <dt>Latest Working Draft</dt>  <dt>Latest Working Draft</dt>
23    <dd><code class="URI">&lt;<a href="http://suika.fam.cx/www/markup/xml/xmlcc/xmlcc-work"    <dd><code class="URI">&lt;<a href="http://suika.fam.cx/www/markup/xml/domdtdef/domdtdef-work"
24        >http://suika.fam.cx/www/markup/xml/xmlcc/xmlcc-work</a>&gt;</code></dd>        >http://suika.fam.cx/www/markup/xml/domdtdef/domdtdef-work</a>&gt;</code></dd>
25  <!-- <dt>Previous Version</dt> -->  <!-- <dt>Previous Version</dt> -->
26  <dt>Version History</dt>  <dt>Version History</dt>
27    <dd><code class=URI>&lt;<a href="http://suika.fam.cx/gate/cvs/markup/xml/xmlcc/xmlcc-work.en.html">http://suika.fam.cx/gate/cvs/markup/xml/xmlcc/xmlcc-work.en.html</a>&gt;</code></dd>    <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>
28  </dl>  <dt id=author>Author</dt>
 <dl class="authors" id="author">  
 <dt>Author</dt>  
29    <dd><a href="http://suika.fam.cx/~wakaba/who?" rel="author"    <dd><a href="http://suika.fam.cx/~wakaba/who?" rel="author"
30        lang=ja>Wakaba</a>        lang=ja>Wakaba</a>
31    <code class="mail">&lt;<a href="mailto:w@suika.fam.cx" rel="author"    <code class="mail">&lt;<a href="mailto:w@suika.fam.cx" rel="author"
# Line 60  available at <code class="URI">&lt;<a Line 50  available at <code class="URI">&lt;<a
50  <div id="abstract" class="section">  <div id="abstract" class="section">
51  <h2>Abstract</h2>  <h2>Abstract</h2>
52    
53  <div class="ed issue">...</div>  <p>The <abbr>DOM</abbr> Document Type Definition module is a set of
54    <abbr>DOM</abbr> interfaces, including both new interfaces and modifications
55    to existing <abbr>DOM</abbr> interfaces, over which <abbr>DOM</abbr>
56    applications are able to access to the definitions of the document type.</p>
57  </div>  </div>
58    
59  <div id="status" class="section">  <div id="status" class="section">
# Line 72  at the time of its publication.  Other d Line 64  at the time of its publication.  Other d
64  might supersede this document.</em></p>  might supersede this document.</em></p>
65    
66  <p>This document is a working draft, produced as part of the  <p>This document is a working draft, produced as part of the
 <a href="http://suika.fam.cx/www/markup/html/whatpm/readme">Whatpm</a>  
 subproject of the  
67  <a href="http://suika.fam.cx/www/manakai-core/doc/web/">manakai</a>  <a href="http://suika.fam.cx/www/manakai-core/doc/web/">manakai</a>
68  project.  It might be updated, replaced, or obsoleted by  project.  It might be updated, replaced, or obsoleted by
69  other documents at any time.  It is inappropriate to  other documents at any time.  It is inappropriate to
# Line 92  normative version.</p> Line 82  normative version.</p>
82    
83  <p class=section-info>This section is <em>non$B!>(Bnormative</em>.</p>  <p class=section-info>This section is <em>non$B!>(Bnormative</em>.</p>
84    
85  <div class="issue ed">...</div>  <p>The <dfn id=term-dom-dtdef><abbr>DOM</abbr> Document Type Definition</dfn>
86    module is a set of <abbr>DOM</abbr> interfaces, including both new
87    interfaces and modifications to existing <abbr>DOM</abbr> interfaces,
88    over which <abbr>DOM</abbr> applications are able to access to the
89    definitions of the document type.</p>
90    
91    <p>Interfaces defined in this document are partially modeled and inspired by
92    early drafts of <abbr>DOM</abbr> Level 1
93    <cite class="bibref informative">[<a href="#ref-DOM1WD">DOM1WD</a>]</cite>,
94    <abbr>DOM</abbr> Level 3 Abstract Schemas <abbr>W3C</abbr> Note
95    <cite class="bibref informative">[<a href="#ref-DOM3AS">DOM3AS</a>]</cite>,
96    and <abbr>XML</abbr> Schema <abbr>API</abbr> specification
97    <cite class="bibref informative">[<a href="#ref-XSAPI">XSAPI</a>]</cite>, but
98    they are not compatible with any of them as a whole.</p>
99    </div>
100    
101    <div class="section" id=conformance>
102    <h2>Conformance Requirements</h2>
103    
104  </div>  <div class=section id=terminology>
105    <h3>Terminology</h3>
106    
107  <div class="section" id="terminology">  <p>All examples and notes in this specification are non$B!>(Bnormative,
108  <h2>Terminology</h2>  as are all sections explicitly marked non$B!>(Bnormative.  Everything
109    else in this specification is normative.</p>
110    
111  <p>The key words <q><em class="rfc2119">MUST</em></q>,  <p>The key words <q><em class="rfc2119">MUST</em></q>,
112  <q><em class="rfc2119">MUST NOT</em></q>,  <q><em class="rfc2119">MUST NOT</em></q>, and <q><em class=rfc2119>MAY</em></q>
113  <q><em class="rfc2119">SHOULD</em></q>,  in this document are to be interpreted as described in
 <q><em class="rfc2119">SHOULD NOT</em></q>, and  
 <q><em class=rfc2119>MAY</em></q> in this  
 document are to be interpreted as described in  
114  <a href="urn:ietf:rfc:2119"><abbr title="Request for Comments">RFC</abbr>  <a href="urn:ietf:rfc:2119"><abbr title="Request for Comments">RFC</abbr>
115  2119</a>  2119</a>
116  <cite class="bibref normative">[<a href="#ref-KEYWORDS">KEYWORDS</a>]</cite>.</p>  <cite class="bibref normative">[<a href="#ref-KEYWORDS">KEYWORDS</a>]</cite>.</p>
117    
118  <!-- Strictly speaking the paragraph below is not part of terminology. -->  <p>Conformance requirements phrased as algorithms or specific steps
119  <p>All examples and notes in this specification are non$B!>(Bnormative,  <em class=rfc2119>MAY</em> be implemented in any manner, so long as the end
120  as are all sections explicitly marked non$B!>(Bnormative.  Everything  result is equivalent.  Requirements phrased in the imperative as part of
121  else in this specification is normative.</p>  algorithms are to be interpreted with the meaning of the key word used in
122    introducing the algorithm.</p>
123  <p><span class=ed>Algorithm is normative but non-normative</span>.  
124  In addition, the order in which <a href="#errors">errors</a> are  <p>Sometimes an exception is phrased as being required to be raised.  As
125  raised is undefined.</p>  specified in the <abbr>DOM</abbr> Core specification
126    <cite class="bibref normative">[<a href="#ref-DOM3CORE">DOM3CORE</a>]</cite>,
127    when the value of the <code>strictErrorChecking</code> attribute of the
128    <a href="#Document"><code>Document</code></a> node is <code>false</code>,
129    then the exception is not have to be raised.</p>
130    
131    <p>Some conformance requirements are phrased as requirements on interfaces,
132    attributes, methods, or objects.  Such requirements are applied to
133    implementations.</p>
134    
135    <p>The construction <q>a <code><var>Foo</var></code> object</q>, where
136    <code><var>Foo</var></code> is an interface, is used instead of the more
137    accurate <q>an object implementing the interface
138    <code><var>Foo</var></code></q>.</p>
139    
140    <p>The construction <q>raise a <code><var>Bar</var></code></q>, where
141    <code><var>Bar</var></code> is an exception code, is used instead of the more
142    accurate <q>raise an exception implementing the interface
143    <code>DOMException</code>
144    <cite class="bibref normative">[<a href="#ref-DOM3CORE">DOM3CORE</a>]</cite>
145    with its <code>code</code> attribute set to
146    <code><var>Bar</var></code></q>.</p>
147    
148    <p>The terms
149    <em id=live><a href="http://www.whatwg.org/specs/web-apps/current-work/#live">live</a></em>
150    and <em id=setting>setting</em> and <em id=getting>getting</em> of an attribute
151    is defined in the HTML5 specification
152    <cite class="bibref normative">[<a href="#ref-HTML5">HTML5</a>]</cite>.</p>
153    
154    <p>The term
155    <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>
156    is defined in the <abbr>DOM</abbr> Level 3 Core specification
157    <cite class="bibref normative">[<a href="#ref-DOM3CORE">DOM3CORE</a>]</cite>.</p>
158    
159    <p>The <em id=idl-fragment><abbr>IDL</abbr> fragments</em> in this document are
160    to be interpreted as described in the <cite>Language Bindings for
161    <abbr>DOM</abbr> Specifications</cite> specification
162    <cite class="bibref normative">[<a href="#ref-DOMBIND">DOMBIND</a>]</cite>.</p>
163    
164    <p>Some <abbr>IDL</abbr> fragments are presented as <i>patch</i> to an
165    <abbr>IDL</abbr> fragment defined in another document.  They are to be
166    interpreted as an instance of
167    <a href="http://www.w3.org/TR/2007/WD-DOM-Bindings-20071017/#proddef-InterfaceMembers"><code>InterfaceMembers</code></a>
168    <cite class="bibref normative">[<a href="#ref-DOMBIND">DOMBIND</a>]</cite>.
169    If the <abbr>IDL</abbr> fragment to which the <i>patch</i> is applied has any
170    instance of
171    <a href="http://www.w3.org/TR/2007/WD-DOM-Bindings-20071017/#proddef-InterfaceMember"><code>InterfaceMember</code></a>
172    with same
173    <a href="http://www.w3.org/TR/2007/WD-DOM-Bindings-20071017/#prod-identifier"><code>identifier</code></a>
174    part as that of any instance of
175    <a href="http://www.w3.org/TR/2007/WD-DOM-Bindings-20071017/#proddef-InterfaceMember"><code>InterfaceMember</code></a>
176    in the <i>patch</i>, then the former instance of
177    <a href="http://www.w3.org/TR/2007/WD-DOM-Bindings-20071017/#proddef-InterfaceMember"><code>InterfaceMember</code></a>
178    <em class=rfc2119>MUST</em> be ignored.</p>
179  </div>  </div>
180    
181    <div class=section id=conformance-categories>
182    <h3>Conformance Categories</h3>
183    
184  <div class=section id=error-categories>  <p>There are several kinds of products that can be claim to conform to
185  <h2>Error Classification</h2>  this specification:</p>
186    <dl>
187    <dt id=category-dom-implementation><abbr>DOM</abbr> Implementation</dt>
188      <dd>A <abbr>DOM</abbr> implementation (or just written as
189      <q>implementation</q> in this document) provides a way to access
190      <abbr>DOM</abbr> trees for applications by implementing interfaces defined
191      by this and other documents.  Unless otherwise noted, requirements in this
192      document are applied to <abbr>DOM</abbr> implementations.  To implement
193      all the features in this document, the implementation have to implement
194      some version of <abbr>DOM</abbr> Core (e.g. <abbr>DOM</abbr> Level 3 Core
195      <cite class="bibref normative">[<a href="#ref-DOM3CORE">DOM3CORE</a>]</cite>)
196      with one or more language binding (e.g. ECMAScript and Java bindings
197      <cite class="bibref normative">[<a href="#ref-DOMBIND">DOMBIND</a>]</cite>
198      or Perl binding
199      <cite class="bibref normative">[<a href="#ref-DOMPERL">DOMPERL</a>]</cite>).
200      A conforming implementation <em class=rfc2119>MUST</em> also be a
201      <a href="http://www.w3.org/TR/2007/WD-DOM-Bindings-20071017/#dfn-conforming-implementation">conforming
202      implementation</a> of the <abbr>IDL</abbr> fragments in this document, as
203      described in the <cite>Language Bindings for <abbr>DOM</abbr>
204      Specifications</cite> specification
205      <cite class="bibref normative">[<a href="#ref-DOMBIND">DOMBIND</a>]</cite>.</dd>
206    <dt id=category-xml-parser><abbr>XML</abbr> Parser (<abbr>XML</abbr> document
207    to <abbr>DOM</abbr> tree converter)</dt>
208      <dd>A software component that converts
209      <abbr>XML</abbr> 1.0 or 1.1 document
210      <cite class="bibref normative">[<a href="#ref-XML10">XML10</a>,
211      <a href="#ref-XML11">XML11</a>]</cite> (or fragment thereof) into a
212      <abbr>DOM</abbr> tree (or fragment thereof) in the context of this
213      document.  Note that this document does not define any particular way to
214      parse an <abbr>XML</abbr> document or to construct an <abbr>DOM</abbr>
215      document, but it defines constraints for such processing.</dd>
216    <dt id=category-xml-serializer><abbr>XML</abbr> Serializer (<abbr>DOM</abbr>
217    tree to <abbr>XML</abbr> document converter)</dt>
218      <dd>A software component that converts
219      <abbr>DOM</abbr> tree (or fragment thereof) into an <abbr>XML</abbr> 1.0 or
220      1.1 document (or fragment thereof).  Note that this document does not define
221      any particular way to serialize a <abbr>DOM</abbr> tree, but it defines
222      constraints for such processing.</dd>
223    <dt id=category-infoset-dom><abbr>XML</abbr> Information Set to
224    <abbr>DOM</abbr> Tree Converter</dt>
225      <dd>A software component that converts an <abbr>XML</abbr> information set
226      <cite class="bibref normative">[<a href="#ref-INFOSET">INFOSET</a>]</cite>
227      into a <abbr>DOM</abbr> tree.  Note that this documetn does not define
228      any particular way for the convertion, but it defines constraints for
229      such processing.</dd>
230    <dt id=category-dom-infoset><abbr>DOM</abbr> Tree to <abbr>XML</abbr>
231    Information Set Converter</dt>
232      <dd>A software component that converts a <abbr>DOM</abbr> tree into
233      an <abbr>XML</abbr> information set.  Note that this documetn does not define
234      any particular way for the convertion, but it defines constraints for
235      such processing.</dd>
236    </dl>
237    </div>
238    </div>
239    
240  <p class=ed>If a <code>Document</code> node has no  <div class=section id=dom-dtdef>
241  xml-well-formedness-error, entity-error, and unknown-error,  <h2><abbr>DOM</abbr> Document Type Definition Module</h2>
 then it is well-formed.  If a well-formed <code>Document</code>  
 node has no xml-validity-error, it is valid.</p>  
242    
243  <div class="note memo">  <p>The <abbr>DOM</abbr> Document Type Definition module, version 3.0,
244  <p>A well$B!>(Bformed <code>Document</code> can be safely serialized  introduces four interfaces:
245  into a well$B!>(Bformed XML document.  A valid <code>Document</code>  <a href="#DocumentXDoctype"><code>DocumentXDoctype</code></a>,
246  can be easily serialized into a valid XML document.</p>  <a href="#DocumentTypeDefinition"><code>DocumentTypeDefinition</code></a>,
247    <a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a>,
248    and <a href="#AttributeDefinition"><code>AttributeDefinition</code></a>.
249    In addition, it modifies existing interfaces
250    <a href="#Node"><code>Node</code></a>,
251    <a href="#Document"><code>Document</code></a>,
252    <a href="#DocumentType"><code>DocumentType</code></a>,
253    <a href="#Entity"><code>Entity</code></a>, and
254    <a href="#Notation"><code>Notation</code></a>
255    <cite class="bibref normative">[<a href="#ref-DOM3CORE">DOM3CORE</a>]</cite>.</p>
256    
257    <div class=section id=features>
258    <h3>Feature String</h3>
259    
260    <p>In a <abbr>DOM</abbr> implementation that supports the version 3.0 of
261    the <abbr>DOM</abbr> Document Type Definition module, the
262    <code>hasFeature</code> method of a <code>DOMImplementation</code> object
263    <cite class="bibref normative">[<a href="#ref-DOM3CORE">DOM3CORE</a>]</cite>
264    <em class=rfc2119>MUST</em> return <code>true</code> when the parameters are
265    set to
266    <dfn id=feature-XDoctype><code>http://suika.fam.cx/www/2006/feature/XDoctype</code></dfn>
267    and <dfn id=feature-XDoctype-3.0><code>3.0</code></dfn> respectively.  Any
268    method that takes one or more feature names, with or without version number,
269    such as <code>hasFeature</code> or <code>getFeature</code>,
270    <em class=rfc2119>MUST</em> behave in a manner consistent with it.</p>
271  </div>  </div>
272    
273  <p class=ed>To be a conforming <a href="http://www.w3.org/TR/2006/REC-xml-20060816/#dt-validating">validating XML processor</a>,  <div class=section id=section-node>
274  ...</p>  <h3>Modifications to the <code id=Node>Node</code> Interface</h3>
275    
276  <p>Errors are classified into these  <p>The implementation of the
277  <dfn id=error-category title="error category">error categories</dfn>:</p>  <a href="#Node"><code>Node</code></a> interface
278    <em class=rfc2119>MUST</em> be modified as the following
279    <a href="#idl-fragment"><abbr>IDL</abbr> fragment</a>:</p>
280    <pre class=idl><code>// Additions to the Node interface
281    
282    // Additions to the NodeType definition group
283    const unsigned short <a href="#ELEMENT_TYPE_DEFINITION_NODE">ELEMENT_TYPE_DEFINITION_NODE</a> = 81001;
284    const unsigned short <a href="#ATTRIBUTE_DEFINITION_NODE">ATTRIBUTE_DEFINITION_NODE</a> = 81002;
285    </pre>
286    
287    <p>This specification adds two new types (subinterfaces) of
288    <a href="#Node"><code>Node</code></a>: element type definition (node type
289    <a href="#ELEMENT_TYPE_DEFINITION_NODE"><code>ELEMENT_TYPE_DEFINITION_NODE</code></a>,
290    interface
291    <a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a>) and
292    attribute definition (node type
293    <a href="#ATTRIBUTE_DEFINITION_NODE"><code>ATTRIBUTE_DEFINITION_NODE</code></a>,
294    interface
295    <a href="#AttributeDefinition"><code>AttributeDefinition</code></a>).  For
296    these kinds of nodes, methods and attributes in the
297    <a href="#Node"><code>Node</code></a> interface must behave as following:</p>
298    
299  <dl id=errors>  <dl>
300  <dt><dfn id=entity-error><code>entity-error</code></dfn></dt>  <dt><code id=attributes>attributes</code></dt>
301    <dd>    <dd>
302      <p class=ed>@@</p>      <p>On getting, the attribute <em class=rfc2119>MUST</em> return
303      <div class="note memo">      <code>null</code>.</p>
       <p>This <span class=ed>algorithm</span> does not support  
       <abbr>DOM</abbr> tree with one or more <code>EntityReference</code>  
       nodes.  It is expected that any entity references are expanded  
       at the parse time and any unexpandable entity references  
       make parse time errors raised so that never result in  
       <abbr>DOM</abbr> tree with <code>EntityReference</code> nodes.</p>  
     </div>  
304    </dd>    </dd>
305  <dt><dfn id=round-trip-error><code>round-trip-error</code></dfn></dt>  <dt><code id=baseURI>baseURI</code></dt>
   <dd class=ed>@@</dd>  
 <dt><dfn id=round-trip-warning><code>round-trip-warning</code></dfn></dt>  
306    <dd>    <dd>
307      <p>A <a href="#round-trip-warning"><code>round-trip-warning</code></a>      <p>On getting, the attribute <em class=rfc2119>MUST</em> return the
308      will be raised when a construct, which might not be restored to the same      value of the <a href="#baseURI"><code>baseURI</code></a> attribute
309      construct when it is serialized and then re-parsed by a conforming      of the node in the <code>ownerDocument</code> attribute of the node.
310      processor, is encountered.</p>      Note that the value might be <code>null</code>.</p>
     <div class="example memo">  
       <p>For a <code>Comment</code> node a  
       <a href="#round-trip-warning"><code>round-trip-warning</code></a> will  
       be raised, since <abbr>XML</abbr> processors are not required to  
       report texts of comments for applications.</p>  
     </div>  
311    </dd>    </dd>
312  <dt class=ed><dfn id=unknown-error><code>unknown-error</code></dfn>?</dt>  <dt><code id=cloneNode>cloneNode</code></dt>
313    <dd class=ed>@@</dd>    <dd class=ed>
314  <dt><dfn id=xml-misc-error><code>xml-misc-error</code></dt>      <p>A future version of the specification is expected to define the
315    <dd>An <abbr>XML</abbr> <i>error</i> (<abbr>XML</abbr> 1.0      behavior of the <a href="#cloneNode"><code>cloneNode</code></a> method
316    <cite class="bibref normative">[<a href="#ref-XML10">XML10</a>]</cite>      for those kinds of nodes.  In addition, it might revise behavior of
317    <a href="http://www.w3.org/TR/2006/REC-xml-20060816/#dt-error">error</a> /      the method for <a href="#Entity"><code>Entity</code></a>,
318    <abbr>XML</abbr> 1.1      <a href="#Notation"><code>Notation</code></a>, and/or
319    <cite class="bibref normative">[<a href="#ref-XML11">XML11</a>]</cite>      <a href="#DocumentType"><code>DocumentType</code></a> nodes.</p>
320    <a href="@@/#dt-error">error</a>)    </dd>
321    that is not classified to any other <a href="#error-category">error    <!--
322    category</a>.</dd>    <dd class=ed>@@ If Attr and AttributeDefinition is inconsistent, then ...</dd>
323  <dt><dfn id=xml-misc-fatal-error><code>xml-misc-fatal-error</code></dt>    -->
324    <dd>An <abbr>XML</abbr> <i>fatal error</i> (<abbr>XML</abbr> 1.0  <dt><code id=compareDocumentPosition>compareDocumentPosition</code></dt>
325    <cite class="bibref normative">[<a href="#ref-XML10">XML10</a>]</cite>    <dd class=ed>
326    <a href="http://www.w3.org/TR/2006/REC-xml-20060816/#dt-fatal">fatal      <p>A future version of the specification is expected to define the
327    error</a> / <abbr>XML</abbr> 1.1      behavior of the method
328    <cite class="bibref normative">[<a href="#ref-XML11">XML11</a>]</cite>      for those kinds of nodes.  In addition, it might revise behavior of
329    <a href="@@/#dt-fatal">fatal error</a>)      the method for <a href="#Entity"><code>Entity</code></a>,
330    that is not classified to any other <a href="#error-category">error      <a href="#Notation"><code>Notation</code></a>, and/or
331    category</a>. <span class=ed>@@ What errors fall into this category?</span></dd>      <a href="#DocumentType"><code>DocumentType</code></a> nodes.</p>
332  <dt><dfn id=xml-misc-recommendation><code>xml-misc-recommendation</code></dfn></dt>    </dd>
333    <dt><code id=isDefaultNamespace>isDefaultNamespace</code></dt>
334      <dd><p>When invoked, the method <em class=rfc2119>MUST</em> return
335      <code>false</code>.</p></dd>
336    <dt><code id=isEqualNode>isEqualNode</code></dt>
337      <dd><p>For the <a href="#isEqualNode"><code>isEqualNode</code></a> method,
338      following items are added to the list of conditions for equality:</p>
339    
340      <ul>
341      <li>
342        <p>If the nodes are <a href="#DocumentType"><code>DocumentType</code></a>
343        and at least one of them has the support for the feature
344        <a href="#feature-XDoctype"><code>http://suika.fam.cx/www/2006/feature/XDoctype</code></a>:</p>
345        <ul>
346        <li>they are equal according to <abbr>DOM</abbr> Level 3 Core definition
347        <cite class="bibref normative">[<a href="#ref-DOM3CORE">DOM3CORE</a>]</cite>,
348        and
349        <li>either:
350          <ul><!--
351          <li>both of them does not support the feature
352          <a href="#feature-XDoctype"><code>http://suika.fam.cx/www/2006/feature/XDoctype</code></a>,</li>-->
353          <li>exactly one of them support the feature
354          <a href="#feature-XDoctype"><code>http://suika.fam.cx/www/2006/feature/XDoctype</code></a>
355          and the <code>length</code> attribute of the <code>NamedNodeMap</code>
356          object in the <a href="#elementTypes"><code>elementTypes</code></a>
357          attribute of it is equal to <code>0</code>, or</li>
358          <li>both of them support the feature
359          <a href="#feature-XDoctype"><code>http://suika.fam.cx/www/2006/feature/XDoctype</code></a>
360          and the values of the
361          <a href="#elementTypes"><code>elementTypes</code></a> attributes are
362          equal (equality of the
363          <a href="#elementTypes"><code>elementTypes</code></a> attribute is same
364          as that for the <code>attributes</code> attribute).</li>
365          </ul>
366        </li>
367        </ul>
368      </li>
369    
370      <li><p>If the nodes are
371      <a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a>,
372      the values of the
373      <a href="#attributeDefinitions"><code>attributeDefinitions</code></a>
374      attributes are equal (equality of the
375      <a href="#attributeDefinitions"><code>attributeDefinitions</code></a>
376      attribute is same as that for the <code>attributes</code> attribute).</p></li>
377    
378      <li><p>If the nodes are
379      <a href="#AttributeDefinition"><code>AttributeDefinition</code></a>,
380      the values of the <a href="#declaredType"><code>declaredType</code></a> and
381      the <a href="#defaultType"><code>defaultType</code></a> attributes are
382      equal respectively.</p></li>
383    
384      <li><p>If the nodes are
385      <a href="#AttributeDefinition"><code>AttributeDefinition</code></a>,
386      the values of the <code>DOMStringList</code> objects in the
387      <a href="#allowedTokens"><code>allowedTokens</code></a> attributes
388      are equal, i.e. their <code>length</code> attribute values are equal and
389      each string exists in a list is contained in another list (their indeces
390      may be different), with an additional constraint that the number of the
391      items that are equal to a string in a list is equal to the number
392      of the items equal to the string in another list.</p></li>
393      </ul></dd>
394    <dt><code id=lookupNamespaceURI>lookupNamespaceURI</code> and
395    <code id=lookupPrefix>lookupPrefix</code></dt>
396      <dd><p>When invoked, the methods <em class=rfc2119>MUST</em> return
397      <code>null</code>.</p></dd>
398    <dt><code id=nodeName>nodeName</code></dt>
399      <dd>
400        <p>If the node is an
401        <a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a>:
402        On getting, the attribute <em class=rfc2119>MUST</em> return the
403        name of the element type definition represented by the node.</p>
404    
405        <p>If the node is an
406        <a href="#AttributeDefinition"><code>AttributeDefinition</code></a>:
407        On getting, the attribute <em class=rfc2119>MUST</em> return the
408        name of the attribute definition represented by the node.</p>
409      </dd>
410    <dt><code id=nodeType>nodeType</code></dt>
411    <dd>    <dd>
412      <p>An      <p>On getting, the attribute <!--<em class=rfc2119>MUST</em>--> returns
413      <a href="#xml-misc-recommendation"><code>xml-misc-recommendation</code></a>      <!-- NOTE: No MUST, to avoid circular reference (nodeType==8100[12]
414      will be raised if a <em class=rfc2119>SHOULD</em>$B!>(Blevel requirement      is defined that they MUST implement ElementType|AttributeDefinition). -->
415      in <abbr>XML</abbr> specification is not met.</p>      <a href="#ELEMENT_TYPE_DEFINITION_NODE"><code>ELEMENT_TYPE_DEFINITION_NODE</code></a>
416        (if the node is an
417        <a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a>) or
418        <a href="#ATTRIBUTE_DEFINITION_NODE"><code>ATTRIBUTE_DEFINITION_NODE</code></a>
419        (if the node is an
420        <a href="#AttributeDefinition"><code>AttributeDefinition</code></a>).</p>
421    
422        <!-- NodeType -->
423    <p>Two constants are added to the <code id=NodeType>NodeType</code>
424    definition group of the <a href="#Node"><code>Node</code></a> interface as
425    following:</p>
426    <table>
427    <thead>
428    <tr><th scope=col>Name<th scope=col>Value<th scope=col>Description</tr>
429    </thead>
430    <tbody>
431    <tr>
432    <th scope=row><dfn id=ELEMENT_TYPE_DEFINITION_NODE class=dom-const><code>ELEMENT_TYPE_DEFINITION_NODE</code></dfn>
433    <td><code>81001</code><td>The node is an
434    <a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a>.</tr>
435    <tr>
436    <th scope=row><dfn id=ATTRIBUTE_DEFINITION_NODE class=dom-const><code>ATTRIBUTE_DEFINITION_NODE</code></dfn>
437    <td><code>81002</code><td>The node is an
438    <a href="#ElementTypeDefinition"><code>AttributeDefinition</code></a>.</tr>
439    </tbody>
440    </table>
441    </dd>    </dd>
442  <dt><dfn id=xml-validity-error><code>xml-validity-error</code></dfn></dt>  <dt><code id=nodeValue>nodeValue</code> and
443    <dd>A violation of validity constraint in XML document.</dd>  <code id=textContent>textContent</code></dt>
444  <dt><dfn id=xml-well-formedness-error><code>xml-well-formedness-error</code></dfn></dt>    <dd>
445    <dd><p>If an <code>xml-well-formedness-error</code> is raised,      <p>If the node is an
446    it would not be possible to generate an XML serialization that      <a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a>:
447    would match to the appropriate production rule and that would not      On getting, the attributes <em class=rfc2119>MUST</em> return
448    violate to any well$B!>(Bformedness constraint in XML      <code>null</code>.</p>
449    specification <cite class="bibref normative">[<a href="#ref-XML10">XML10</a>,  
450    <a href="#ref-XML11">XML11</a>]</cite>.</p></dd>    <div class="note memo">
451      <p>Thus, on setting the attributes does nothing
452      <cite class="bibref normative">[<a href="#ref-DOM3CORE">DOM3CORE</a>]</cite>.</p>
453      </div>
454    
455      <p>If the node is an
456      <a href="#AttributeDefinition"><code>AttributeDefinition</code></a>:
457      The attribute <em class=rfc2119>MUST</em> behave as if the node
458      were <code>Attr</code>
459      <cite class="bibref normative">[<a href="#ref-DOM3CORE">DOM3CORE</a>]</cite>.</p></dd>
460    <dt><code id=normalize>normalize</code></dt>
461      <dd><p>When a <a href="#DocumentType"><code>DocumentType</code></a> is
462      normalized, any nodes in the <code>NamedNodeMap</code> object in the
463      <a href="#elementTypes"><code>elementTypes</code></a> attribute
464      <em class=rfc2119>MUST</em> be normalized as well.</p>
465    
466      <p>When an
467      <a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a> node
468      is normalized, any nodes in the <code>NamedNodeMap</code> object in the
469      <a href="#attributeDefinitions"><code>attributeDefinitions</code></a>
470      attribute <em class=rfc2119>MUST</em> be normalized as well.</p></dd>
471  </dl>  </dl>
472    
 <div class=ed><p>@@ TODO: #dt-atuseroption at user option  
 (MAY or MUST), #dt-compat for compatibility,  
 #dt-interop for interoperability</p></div>  
   
473  </div>  </div>
474    
475  <div class=section id=parsing-xml>  <div class=section id=section-document>
476  <h2>Parsing <abbr>XML</abbr> Document</h2>  <h3>Modifications to the <code id=Document>Document</code> Interface</h3>
   
 <ul>  
 <li>If the <abbr>XML</abbr> document does not begin with an  
 <abbr>XML</abbr> declaration, then raise an  
 <a href="#xml-misc-recommentation" id=xmr-xml-decl><code>xml-misc-recommendation</code></a>.</li>  
 <li>If the replacement text of an entity declaration is  
 <code>&lt;</code>, then raise an  
 <a href="#xml-misc-warning" id=xmw-entity-value-lt><code>xml-misc-warning</code></a>.<!--  
 "strongly advised to avoid" in a Note in Section 2.3 of [XML10], [XML11].  
 --></li>  
 <li>If there is an element type declaration whose <code>Name</code>  
 value is already declared, then raise an  
 <a href="#xml-validity-error" id=vc-edunique><code>xml-validity-error</code></a>.</li>  
 <li>If attribute definition whose <code>Name</code> is  
 <code>xml:space</code> has <span class=ed>declared type different from  
 (default|preserve), (default), or (preserve)</span>, then raise an  
 <a href="#xml-misc-error" id=xme-ad-xml-space><code>xml-misc-error</code></a>.  
 <span class=ed>@@ duplication with  
 <a href="#xml-at-xml-space">#xml-at-xml-space</a>.<!--  
 <!ATTLIST e xml:space CDATA #IMPLIED xml:space CDATA #IMPLIED> --></span></li>  
 <li>If an empty-element tag is used for an element which is <em>not</em>  
 declared <code>EMPTY</code>, then raise an  
 <a href="#xml-misc-recommentation" id=xmr-emptyelemtag-not-empty><code>xml-misc-recommendation</code></a>.</li>  
 <li>If an empty-element tag is <em>not</em> used for an element which is  
 declared <code>EMPTY</code>, then raise an  
 <a href="#xml-misc-recommentation" id=xmr-empty-not-emptyelemtag><code>xml-misc-recommendation</code></a>.</li>  
 <!--  
   
 #vc-PEinMarkupDecl Validity constraint: Proper Declaration/PE Nesting  
 #wfc-PEinInternalSubset Well-formedness constraint: PEs in Internal Subset  
 #ExtSubset Well-formedness constraint: External Subset  
 #PE-between-Decls Well-formedness constraint: PE Between Declarations  
 #GIMatch Well-formedness constraint: Element Type Match  
 #uniqattspec Well-formedness constraint: Unique Att Spec  
 #NoExternalRefs Well-formedness constraint: No External Entity References  
 #CleanAttrVals Well-formedness constraint: No < in Attribute Values  
 #vc-PEinGroup Validity constraint: Proper Group/PE Nesting  
 "For interoperability, if a parameter-entity reference appears in a choice, seq, or Mixed construct, its replacement text SHOULD contain at least one non-blank character, and neither the first nor last non-blank character of the replacement text SHOULD be a connector (| or ,)."  
 "For interoperability, an XML processor MAY at user option issue a warning when more than one attribute-list declaration is provided for a given element type, or more than one attribute definition is provided for a given attribute, but this is not an error."  
 #condsec-nesting Validity constraint: Proper Conditional Section/PE Nesting  
 #wf-Legalchar Well-formedness constraint: Legal Character  
 #textent Well-formedness constraint: Parsed Entity  
 #norecursion Well-formedness constraint: No Recursion  
 #indtd Well-formedness constraint: In DTD  
 "External parsed entities SHOULD each begin with a text declaration."  
 "It is an error for a reference to an unparsed entity to appear in the EntityValue in an entity declaration."  
 #UniqueNotationName Validity constraint: Unique Notation Name  
   
 @@ Need detailed review, but maybe should be in parsing phase  
   
 #vc-check-rmd Validity constraint: Standalone Document Declaration  
   
 @@ Need dtailed review  
   
 #wf-entdeclared Well-formedness constraint: Entity Declared  
 #vc-entdeclared Validity constraint: Entity Declared  
 "For interoperability, valid documents SHOULD declare the entities amp, lt, gt, apos, quot, in the form specified in 4.6 Predefined Entities."  
 "If the entities lt or amp are declared, they MUST be declared as internal entities whose replacement text is a character reference to the respective character (less-than sign or ampersand) being escaped; the double escaping is REQUIRED for these entities so that references to them produce a well-formed result. If the entities gt, apos, or quot are declared, they MUST be declared as internal entities whose replacement text is the single character being escaped (or a character reference to that character; the double escaping here is OPTIONAL but harmless)."  
   
 @@ flaged and then reported in DOM check phase  
   
 "Entities encoded in UTF-16 MUST and entities encoded in UTF-8 MAY begin with the Byte Order Mark"  
 "In the absence of external character encoding information (such as MIME headers), parsed entities which are stored in an encoding other than UTF-8 or UTF-16 MUST begin with a text declaration"  
 "In an encoding declaration, the values "UTF-8", "UTF-16", "ISO-10646-UCS-2", and "ISO-10646-UCS-4" SHOULD be used for the various encodings and transformations of Unicode / ISO/IEC 10646, the values "ISO-8859-1", "ISO-8859-2", ... "ISO-8859-n" (where n is the part number) SHOULD be used for the parts of ISO 8859, and the values "ISO-2022-JP", "Shift_JIS", and "EUC-JP" SHOULD be used for the various encoded forms of JIS X-0208-1997. It is RECOMMENDED that character encodings registered (as charsets) with the Internet Assigned Numbers Authority [IANA-CHARSETS], other than those just listed, be referred to using their registered names; other encodings SHOULD use names starting with an "x-" prefix."  
   
 @@ in parsing phase  
   
 "It is a fatal error when an XML processor encounters an entity with an encoding that it is unable to process. It is a fatal error if an XML entity is determined (via default, encoding declaration, or higher-level protocol) to be in a certain encoding but contains byte sequences that are not legal in that encoding."  
477    
478    <!--
479    <p>If an attempt is made to adopt an
480    <a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a> or
481    <a href="#AttributeDefinition"><code>AttributeDefinition</code></a> node,
482    the <code id=adoptNode>adoptNode</code> method <em class=rfc2119>MUST</em>
483    raise a <code>NOT_SUPPORTED_ERR</code> exception <span class=ed>@@
484    ref</span>.</p>
485  -->  -->
 </ul>  
 </div>  
486    
487  <div class="section" id=checking-dom>  <div class=ed>
488  <h2>Checking <abbr>DOM</abbr></h2>  <p>Future version of the specification is expected to define what should
489    be done if <code>adoptNode</code> or <code>importNode</code> method have to
490  <p>The following algorithms and definitions are applied to  adopt or import an
491  <abbr>XML</abbr> documents; especially, they are not applied  <a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a> or
492  to <abbr>HTML</abbr> documents.<!-- TODO: ref to HTML5 --></p>  <a href="#AttributeDefinition"><code>AttributeDefinition</code></a> node.
493    In addition it might revise behavior of those methods for
494  <div class=section id=definitions>  <a href="#Entity"><code>Entity</code></a>,
495  <h3>Definitions</h3>  <a href="#Notation"><code>Notation</code></a>, and/or
496    <a href="#DocumentType"><code>DocumentType</code></a> nodes.
497  <p>The <dfn id=xml-version><abbr>XML</abbr> version</dfn> of a node is  Behavior of <code>normalizeDocument</code> method for these kinds of
498  the <abbr>XML</abbr> version of the document to which the node belongs.  nodes might also be defined in some day.</p>
499  For a <code>Documemt</code> node, the <abbr>XML</abbr> version  </div>
 of the document is the value of the <code>xmlVersion</code>  
 attribute of the node.  For a <code>DocumentType</code> node whose  
 <code>ownerDocument</code> attribute is set to <code>null</code>,  
 the <abbr>XML</abbr> version of the document is <code>1.0</code><!--  
 since createDocumentType [DOM3CORE] assumes XML 1.0 [XML10TE] -->.  
 For any other node, the <abbr>XML</abbr> version of the document  
 is that of the <code>Document</code> node contained in the  
 <code>ownerDocument</code> attribute of the node.</p>  
   
 </div>  
   
   
 <div class=section id=checking-components>  
 <h3>Conformance Checking Algorithms for Components</h3>  
   
 <p>To  
 <dfn id=algorithm-to-validate-an-xml-character-data title="validate an XML string">to  
 validate an <abbr>XML</abbr> string (<dfn id=var-s><var>s</var></dfn>)</dfn>,  
 the following algorithm <em class=rfc2119>MUST</em> be used:</p>  
 <ol>  
 <li>If <var>s</var> contains a character that is <em>not</em> in  
 the character class <a href="#class-Char10"><code>Char10</code></a>,  
 then raise an  
 <a href="#xml-well-formedness-error" id=wfe-illegal-char><code>xml-well-formedness-error</code></a>.</li>  
 <li>If <var>s</var> contains a character that is in the character  
 class <a href="#class-CompatChar10"><code>CompatChar10</code></a>,  
 then raise an  
 <a href="#xml-misc-warning" id=xmw-compat-char><code>xml-misc-warning</code></a>.</li>  
 <li>If <var>s</var> contains a character that is in the character  
 class <a href="#class-ControlChar10"><code>ControlChar10</code></a>,  
 then raise an  
 <a href="#xml-misc-warning" id=xmw-control-char><code>xml-misc-warning</code></a>.</li>  
 <li class=ed>@@ XML 1.1 support</li>  
 <li>If <var>s</var> contains a <code class=char>U+000D</code>  
 <code class=charname>CARRIAGE RETURN</code> character, then  
 raise a  
 <a href="#round-trip-error" id=rte-cr><code>round-trip-error</code></a>.  
 <span class=ed>@@ We should not raise duplicate errors for U+000D  
 in attribute values.  In addition, we should support a mode where  
 U+000D will be serialized as &#x000D; (so that no round-trip-error  
 will be raised).</span></li>  
 </ol>  
   
 <p>To  
 <dfn id=algorithm-to-validate-a-name title="validate a Name">validate a  
 <code>Name</code> (<dfn id=var-name-s><var>s</var></dfn>)</dfn>, the following  
 algorithm <em class=rfc2119>MUST</em> be used:</p>  
 <ol>  
 <li>If <var>s</var> is an empty string, then raise an  
 <a href="#xml-well-formedness-error" id=wfe-name-empty><code>xml-well-formedness-error</code></a>.  
 Abort these steps.</li>  
 <li><a href="#algorithm-to-validate-an-xml-character-data" title="validate an XML string">Validate  
 <var>s</var> as an <abbr>XML</abbr> string</a>.</li>  
 <li>If the first character in <var>s</var> is a character that is  
 <em>not</em> in the character class  
 <a href="#class-NameStartChar10"><code>NameStartChar10</code></a>, then raise  
 an  
 <a href="#xml-well-formedness-error" id=wfe-name-startchar><code>xml-well-formedness-error</code></a>.</li>  
 <li>If a character other than the first character in <var>s</var> is a  
 character that is <em>not</em> in the character class  
 <a href="#class-NameChar10"><code>NameChar10</code></a>, then raise an  
 <a href="#xml-well-formedness-error" id=wfe-name-char><code>xml-well-formedness-error</code></a>.</li>  
 <li>If <var>s</var> begins with the string <code>xml</code> (in any  
 case combination), then raise an  
 <a href="#xml-misc-warning" id=xmw-reserved-name><code>xml-misc-warning</code></a>.  
 <span class=ed>@@ except for attribute names <code>xml:lang</code>,  
 <code>xml:space</code>, <code>xml:base</code>, <code>xml:id</code>,  
 <code>xmlns</code>, <code>xmlns:<var>*</var></code>,  
 pi name <code>xml-stylesheet</code>.</span><!--  
 "names beginning with a match to (('X'|'x')('M'|'m')('L'|'l')) are reserved for standardization in this or future versions of this specification.":  
 xmlns, xml-stylesheet, xml:base and xml:id specifications violate to this sentense!  
 --></li>  
 <!-- COLON in Name is a lowercase "should not" in a Note of [XML10],  
 [XML11]. -->  
 <li class=ed>@@ XML 1.1 support</li>  
 </ol>  
   
 <p>To  
 <dfn id=algorithm-to-validate-an-ncname title="validate an NCName">validate  
 an <code>NCName</code> (<dfn id=var-ncname-s><var>s</var></dfn>)</dfn>, the  
 following algorithm <em class=rfc2119>MUST</em> be used:</p>  
 <ol>  
 <li><a href="#algorithm-to-validate-a-name" title="validate a Name">Validate  
 <var>s</var> as a <code>Name</code></a>.</li>  
 <li class=ed>@@</li>  
 </ol>  
   
 <p>To  
 <dfn id=algorithm-to-validate-a-public-identifier title="validate a public identifier">validate  
 a public identifier (<dfn id=var-pid><var>pid</var></dfn>)</dfn>, the  
 following algorithm <em class=rfc2119>MUST</em> be used:</p>  
 <ol>  
 <li>If <var>pid</var> is <code>null</code>, abort these steps.</li>  
 <li>If <var>pid</var> contains a character that is <em>not</em> in the  
 character class <a href="#class-PubidChar"><code>PubidChar</code></a>, then  
 raise an  
 <a href="#xml-well-formedness-error" id=wfe-pubid-char><code>xml-well-formedness-error</code></a>.</li>  
   <li>If <var>pid</var> contains one of <code class=char>U+0009</code>  
   <code class=charname>CHARACTER TABULATION</code>,  
   <code class=char>U+000A</code> <code class=charname>CARRIAGE RETURN</code>,  
   and <code class=char>U+000D</code> <code class=charname>LINE FEED</code>  
   characters, if the first character of <var>pid</var> is  
   <code class=char>U+0020</code> <code class=charname>SPACE</code> character,  
   if the last character of <var>pid</var> is <code class=char>U+0020</code>  
   <code class=charname>SPACE</code> character, or if there is a  
   <code class=char>U+0020</code> <code class=charname>SPACE</code> character  
   immediately followed by another <code class=char>U+0020</code>  
   <code class=charname>SPACE</code> character in <var>pid</var>, then it is a  
   <a href="#round-trip-error" id=rte-pubid-space><code>round-trip-error</code></a>.  
   <span class=ed>Is this really a roundtripness problem?  XML spec  
   does only define the way to match public identifiers in fact, no  
   canonical form.</span></li>  
 </ol>  
   
 <p>To  
 <dfn id=algorithm-to-validate-a-system-identifier title="validate a system identifier">validate  
 a system identifier (<dfn id=var-sid><var>sid</var></dfn>)</dfn>, the  
 following algorithm <em class=rfc2119>MUST</em> be used:</p>  
 <ol>  
   <li>If <var>sid</var> is <code>null</code>, abort these steps.</li>  
 <li><a href="#algorithm-to-validate-an-xml-character-data" title="validate an XML string">Validate  
 <var>sid</var> as an <abbr>XML</abbr> string</a>.</li>  
   <li>If <var>sid</var> contains both <code class=char>U+0022</code>  
   <code class=charname>QUOTATION MARK</code> (<code class=char>"</code>) and  
   <code class=char>U+0027</code> <code class=charname>APOSTROPHE</code>  
   (<code class=char>'</code>) characters, raise an  
   <a href="#xml-well-formedness-error" id=wfe-sid-lit><code>xml-well-formedness-error</code></a>.</li>  
   <li>If <var>sid</var> contains at least one <code class=char>U+0023</code>  
   <code class=charname>NUMBER SIGN</code> (<code class=char>#</code>)  
   character, then raise an  
   <a href="#xml-misc-error" id=xme-sid-fragment><code>xml-misc-error</code></a>.</li>  
   <li class=ed>@@ If <var>sid</var> cannot be converted to a URI  
   reference, then raise a fact-level error (xml-misc-warning?).<!--  
   XML 1.0 has no conformance language for system identifier being  
   a URI reference. --></li>  
 </ol>  
500    
501  </div>  </div>
502    
503  <div class=section id=checking-node>  <div class=section id=section-documentxdoctype>
504  <h3>Checking <code>Node</code></h3>  <h3>The <code>DocumentXDoctype</code> Interface</h3>
505    
506  <p>The algorithm <dfn title="to check a node" id=algorithm-to-check-a-node>to  <p>The <a href="#Document"><code>Document</code></a> nodes
507  check a node (<dfn id=var-n><var>n</var></dfn>)</dfn> is defined as  <em class=rfc2119>MUST</em> also implement the
508  following:</p>  <a href="#DocumentXDoctype"><code>DocumentXDoctype</code></a> interface.</p>
509  <dl class=switch>  
510  <dt>If <var>n</var> is an <code>Attr</code> node</dt>  <p>An instance of the
511    <dd>  <a href="#DocumentXDoctype"><code>DocumentXDoctype</code></a>
512      <ol>  interface <em class=rfc2119>MUST</em> be able to be obtained by using
513      <li><a href="#algorithm-to-validate-an-ncname">Validate the  binding$B!>(Bspecific casting methods on an instance of the
514      <code>localName</code> attribute value as an <code>NCName</code></a>.</li>  <a href="#Document"><code>Document</code></a> interface (if such
515      <li>If the <code>prefix</code> attribute value is different from  casting methods are available) or by using the method <code>getFeature</code>
516      <code>null</code>, then <a href="#algorithm-to-validate-an-ncname">validate  with parameter values
517      the <code>prefix</code> attribute value as an <code>NCName</code></a>.</li>  <a href="#feature-XDoctype"><code>http://suika.fam.cx/www/2006/feature/XDoctype</code></a>
518      <li>For each node <dfn id=var-attr-nc><var>n<sub><var>c</var></sub></var></dfn> in the  and <a href="#feature-XDoctype-3.0"><code>3.0</code></a> respectively (if the
519      <code>childNodes</code> list of <var>n</var>,  <a href="#Document"><code>Document</code></a> node supports the
520        <ol>  feature <code>Core</code> version <code>3.0</code>
521        <li>If <var>n<sub><var>c</var></sub></var> is <em>not</em> a  <cite class="bibref normative">[<a href="#ref-DOM3CORE">DOM3CORE</a>]</cite>).</p>
522        <code>Text</code> or <code>EntityReference</code> node, then it is an  
523        <a href="#xml-well-formedness-error" id=wfe-attr-child><code>xml-well-formedness-error</code></a>.</li>  <p>The <a href="#DocumentXDoctype"><code>DocumentXDoctype</code></a> interface
524        <li>Otherwise, if <var>n<sub><var>c</var></sub></var> is an  <em class=rfc2119>MUST</em> be implemented as the following
525        <code>EntityReference</code> node, then it is an  <a href="#idl-fragment"><abbr>IDL</abbr> fragment</a>:</p>
526        <a href="#entity-error" id=ee-attr-er><code>entity-error</code></a>.</li>  <pre class=idl><code>interface <dfn id=DocumentXDoctype><code>DocumentXDoctype</code></dfn> {
527        <li>Otherwise,    DocumentType <a href="#createDocumentTypeDefinition">createDocumentTypeDefinition</a>
528        <a href="#algorithm-to-check-a-node" title="check a node">check      (in DOMString <a href="#createDocumentTypeDefinition-name"><var>name</var></a>)
529        <var>n<sub><var>c</var></sub></var></a> recusrively.</li>      raises (DOMException);
530        </ol></li>    <a href="#ElementTypeDefinition">ElementTypeDefinition</a> <a href="#createElementTypeDefinition">createElementTypeDefinition</a>
531      <li>If <code>nodeName</code> attribute of <var>n</var> is      (in DOMString <a href="#createElementTypeDefinition-name"><var>name</var></a>)
532      <code>xml:space</code> <span class=ed>@@ or {xml namespace}:space ?</span>      raises (DOMException);
533      and <code>value</code> attribute of <var>n</var> is neither    <a href="#AttributeDefinition">AttributeDefinition</a> <a href="#createAttributeDefinition">createAttributeDefinition</a>
534      <code>default</code> nor <code>preserve</code>, then it is an      (in DOMString <a href="#createAttributeDefinition-name"><var>name</var></a>)
535      <a href="#xml-misc-error" id=xme-attr-xml-space><code>xml-misc-error</code></a>.<!--      raises (DOMException);
536      Note that <!ATTLIST e xml:space (default|preserve) "a">...    <a href="#Entity">Entity</a> <a href="#createGeneralEntity">createGeneralEntityDefinition</a>
537      <e xml:space="default"/> is conforming and valid. --></li>      (in DOMString <a href="#createGeneralEntity-name"><var>name</var></a>)
538      <li class=ed>@@ xml:lang value is not a language tag [RFC 3066 or its      raises (DOMException);
539      successor] or an empty string, then xml-misc-warning    <a href="#Notation">Notation</a> <a href="#createNotation">createNotation</a>
540      (a "fact"-level error; not an XML error).</li>      (in DOMString <a href="#createNotation-name"><var>name</var></a>)
541      <li class=ed>@@ <code>specified</code>,      raises (DOMException);
542      <code>manakaiAttributeType</code> (#ValueType Validity constraint: Attribute Value Type)</li>  }</code></pre>
543      <!-- xml:space MUST be declared to be valid. -->  
544      <li>Let <dfn id=var-v><var>v</var></dfn> be the value of the  <dl>
545      attribute <code>value</code> of <var>n</var>.</li>  <dt><dfn id=createDocumentTypeDefinition class=dom-method><code>createDocumentTypeDefinition</code></dfn>,
546      <li>Validate the <var>n</var> against the <span class=ed>declared  method</dt>
     type</span> as following:  
       <dl class=switch>  
       <dt class=ed><code>ID_ATTR</code></dt>  
         <dd>  
           <ol>  
           <li><span class=ed>Validate <var>v</var> as an  
           <code>Name</code>.</span>  If it fails, then raise an  
           <a href="#xml-validity-error" id=vc-id-name><code>xml-validity-error</code></a>.</li>  
           <li><span class=ed>If <code>ID</code> <var>v</var> is defined,</span>  
           then raise an    
           <a href="#xml-validity-error" id=vc-id-duplication><code>xml-validity-error</code></a>.</li>  
           </ol>  
         </dd>  
       <dt class=ed>IDREF_ATTR</dt>  
         <dd>  
           <ol>  
           <li><span class=ed>Validate <var>v</var> as an  
           <code>Name</code>.</span>  If it fails, then raise an  
           <a href="#xml-validity-error" id=vc-idref-name><code>xml-validity-error</code></a>.</li>  
           <li><span class=ed>If <code>ID</code> <var>v</var> is NOT  
           defined,</span> then raise an    
           <a href="#xml-validity-error" id=vc-idref-match><code>xml-validity-error</code></a>.</li>  
           </ol>  
         </dd>  
       <dt class=ed>IDREFS_ATTR</dt>  
         <dd class=ed>@@</dd>  
       <dt class=ed>ENTITY_ATTR</dt>  
         <dd>  
           <ol>  
           <li><span class=ed>Validate <var>v</var> as an  
           <code>Name</code>.</span>  If it fails, then raise an  
           <a href="#xml-validity-error" id=vc-entname-name><code>xml-validity-error</code></a>.</li>  
           <li><span class=ed>If <code>Entity</code> <var>v</var> is NOT  
           defined,</span> then raise an    
           <a href="#xml-validity-error" id=vc-entname-match><code>xml-validity-error</code></a>.</li>  
           </ol>  
         </dd>  
       <dt class=ed>ENTITIES_ATTR</dt>  
         <dd class=ed>@@</dd>  
       <dt class=ed>NMTOKEN_ATTR</dt>  
         <dd>  
           <ol>  
           <li><span class=ed>Validate <var>v</var> as an  
           <code>Nmtoken</code>.</span>  If it fails, then raise an  
           <a href="#xml-validity-error" id=vc-nmtok-name><code>xml-validity-error</code></a>.</li>  
           </ol>  
         </dd>  
       <dt class=ed>NMTOKENS_ATTR</dt>  
         <dd class=ed>@@</dd>  
       <dt class=ed>NOTATION_ATTR</dt>  
         <dd class=ed><var>v</var> must be one of enumerated values.  
         If not, then raise an  
         <a href="#xml-validity-error" id=vc-notatn-match><code>xml-validity-error</code></a>.</dd>  
       <dt class=ed>ENUMERATED_ATTR</dt>  
         <dd class=ed><var>v</var> must be one of enumerated values.  
         If not, then raise an  
         <a href="#xml-validity-error" id=vc-enum><code>xml-validity-error</code></a>.</dd>  
       <dt class=ed>@@</dt>  
       </dl>  
     </li>  
     <li>If <span class=ed>type ID and default is NOT #IMPLIED or #REQUIRED</span>, then  
     raise an  
     <a href="#xml-validity-error" id=vc-id-default><code>xml-validity-error</code></a>.</li>  
     <li class=ed>@@ #FixedAttr Validity constraint: Fixed Attribute Default</li>  
     <li class=ed>@@ strict serialization error for U+000D, U+000A, and  
     U+0009 characters, leading/trailing U+0020, and U+0020{2,} string?</li>  
     </ol>  
   </dd>  
 <dt>If <var>n</var> is an <code>AttributeDefinition</code> node</dt>  
   <dd>  
     <ol>  
     <li class=ed></li>  
     <li>If <code>nodeName</code> attribute of <var>n</var> is  
     <code>xml:space</code> <span class=ed>@@ or {xml namespace}:space ?</span>  
     and <span class=ed>its declared type is different from (default|preserve),  
     (default), or (preserve)</span>, then raise an  
     <a href="#xml-misc-error" id=xme-at-xml-space><code>xml-misc-error</code></a>.</li>  
     <li>For each node <dfn id=var-ad-nc><var>n<sub><var>c</var></sub></var></dfn> in the  
     <code>childNodes</code> list of <var>n</var>,  
       <ol>  
       <li>If <var>n<sub><var>c</var></sub></var> is <em>not</em> a  
       <code>Text</code> or <code>EntityReference</code> node, then it is an  
       <a href="#xml-well-formedness-error" id=wfe-at-child><code>xml-well-formedness-error</code></a>.</li>  
       <li>Otherwise, if <var>n<sub><var>c</var></sub></var> is an  
       <code>EntityReference</code> node, then it is an  
       <a href="#entity-error" id=ee-at-er><code>entity-error</code></a>.</li>  
       <li>Otherwise,  
       <a href="#algorithm-to-check-a-node" title="check a node">check  
       <var>n<sub><var>c</var></sub></var></a> recusrively.</li>  
       </ol></li>  
     <li class=ed>If <code>NOTATION_ATTR</code>, enumerated values MUST  
     be declared.  If not, then raise an  
     <a href="#xml-validity-error" id=vc-notatn-declared><code>xml-validity-error</code></a>.</li>  
     <li class=ed>If <code>NOTATION_ATTR</code> or <code>ENUMERATED_ATTR</code>,  
     values MUST all be distinct.  If not, then raise an  
     <a href="#xml-validity-error" id=vc-no-duplicate-tokens><code>xml-validity-error</code></a>.</li>  
     <li class=ed>If <code>NOTATION_ATTR</code> on an <code>EMPTY</code>  
     element, then raise an  
     <a href="#xml-validity-error" id=vc-no-notation-empty><code>xml-validity-error</code></a>.</li>  
     <li class=ed>@@ #defattrvalid Validity constraint: Attribute Default Value Syntactically Correct</li>  
     </ol>  
   </dd>  
 <dt>If <var>n</var> is a <code>CDATASection</code> node</dt>  
   <dd>  
     <ol>  
     <li><a href="#algorithm-to-validate-an-xml-character-data" title="validate an XML string">Validate the  
     <code>data</code> attribute value as an <abbr>XML</abbr> character  
     data</a>.</li>  
     <li>If the <code>data</code> attribute value contains  
     a string <code>]]></code>, then raise an  
     <a href="#xml-well-formedness-error" id=wfe-cs-mse><code>xml-well-formedness-error</code></a>.<!-- "for compatibility" --></li>  
     <li>If the <code>childNodes</code> list of <var>n</var> contains  
     any nodes, they are in  
     <a href="#xml-well-formedness-error" id=wfe-cs-child><code>xml-well-formedness-error</code></a>.</li>  
     </ol>  
   </dd>  
 <dt>If <var>n</var> is a <code>Comment</code> node</dt>  
   <dd>  
     <ol>  
     <li>Raise an  
     <a href="#round-trip-warning" id=rtw-comment><code>round-trip-warning</code></a>.</li>  
     <li><a href="#algorithm-to-validate-an-xml-character-data" title="validate an XML string">Validate the  
     <code>data</code> attribute value as an <abbr>XML</abbr> character  
     data</a>.</li>  
     <li>If the <code>data</code> attribute value contains  
     a string <code>--</code>, or if it ends with a character  
     <code>-</code>, then raise an  
     <a href="#xml-well-formedness-error" id=wfe-comment-com><code>xml-well-formedness-error</code></a>.<!--  
     "for compatibility" --></li>  
     <li>If the <code>childNodes</code> list of <var>n</var> contains  
     any nodes, they are in  
     <a href="#xml-well-formedness-error" id=wfe-comment-child><code>xml-well-formedness-error</code></a>.</li>  
     </ol>  
   </dd>  
 <dt>If <var>n</var> is a <code>Document</code> node</dt>  
   <dd>  
     <ol>  
     <li>If <a href="#xml-version"><abbr>XML</abbr> version</a> of <var>n</var>  
     is different from <code>1.0</code> or <code>1.1</code>,  
     then it is an <code class=ed>unknown-error?</code>.</li>  
     <li>If the <code>xmlEncoding</code> attribute value does <em>not</em>  
     match to <code>[A-Za-z] ([A-Za-z0-9._] | '-')*</code>  
     <span class=ed>@@ formal def</span>, then it is an  
     <a href="#xml-well-formedness-error" id=wfe-encoding><code>xml-well-formedness-error</code></a>.</li>  
     <li>The <code>childNodes</code> list of <var>n</var> have to  
     consist of zero or more <code>Comment</code> and/or  
     <code>ProcessingInstruction</code> nodes, followed by  
     an optional <code>DocumentType</code> node, followed  
     by zero or more <code>Comment</code> and/or  
     <code>ProcessingInstruction</code> nodes, followed by  
     an <code>Element</code> node, followed  
     by zero or more <code>Comment</code> and/or  
     <code>ProcessingInstruction</code> nodes.  Any violation to this is an  
     <a href="#xml-well-formedness-error" id=wfe-document-child><code>xml-well-formedness-error</code></a>.</li>  
     <li>For each node <dfn id=var-document-nc><var>n<sub><var>c</var></sub></var></dfn>  
     in the <code>childNodes</code> list of <var>n</var>,  
       <ol>  
       <li>If <var>n<sub><var>c</var></sub></var> is <em>not</em> an  
       <code>EntityReference</code> node, then  
       <a href="#algorithm-to-check-a-node" title="check a node">check  
       <var>n<sub><var>c</var></sub></var></a> recursively.</li>  
       </ol></li>  
     <li class=ed>@@ <code>allDeclarationsProcessed</code></li>  
     </ol>  
   </dd>  
 <dt>If <var>n</var> is a <code>DocumentFragment</code> node</dt>  
   <dd>  
     <ol>  
     <li>For each node <dfn id=var-df-nc><var>n<sub><var>c</var></sub></var></dfn>  
     in the <code>childNodes</code> list of <var>n</var>,  
       <ol>  
       <li>If <var>n<sub><var>c</var></sub></var> is <em>not</em> an  
       <code>Element</code>, <code>Text</code>, <code>CDATASection</code>,  
       <code>Comment</code>, <code>ProcessingInstruction</code>, or  
       <code>EntityReference</code> node, then it is an  
       <a href="#xml-well-formedness-error" id=wfe-df-child><code>xml-well-formedness-error</code></a>.</li>  
       <li>Otherwise, if <var>n<sub><var>c</var></sub></var> is an  
       <code>EntityReference</code> node, then it is an  
       <a href="#entity-error" id=ee-df-er><code>entity-error</code></a>.</li>  
       <li>Otherwise,  
       <a href="#algorithm-to-check-a-node" title="check a node">check  
       <var>n<sub><var>c</var></sub></var></a> recursively.</li>  
       </ol></li>  
     </ol>  
   </dd>  
 <dt>If <var>n</var> is a <code>DocumentType</code> node</dt>  
   <dd>  
     <ol>  
     <li><a href="#algorithm-to-validate-an-ncname">Validate the  
     <code>nodeName</code> attribute value as an <code>NCName</code></a>.</li>  
     <li>Follow the following substeps:  
       <ol>  
       <li>If <code>ownerDocument</code> attribute of <var>n</var> is  
       <code>null</code>, then abort these substeps.</li>  
       <li>If <code>documentElement</code> attribute of the node  
       set to <code>ownerDocument</code> attribute of <var>n</var> is  
       <code>null</code>, then abort these substeps.</li>  
       <li>If <code>nodeName</code> attribute of the node set to  
       <code>documentElement</code> attribute of the node set to  
       <code>ownerDocument</code> attribute of <var>n</var> is  
       different from <code>nodeName</code> of <var>n</var>,  
       then raise an  
       <a href="#xml-validity-error" id=vc-roottype><code>xml-validity-error</code></a>.</li></li>  
       </ol>  
     </li>  
     <li><a href="#algorithm-to-validate-a-public-identifier" title="validate a public identifier">Validate  
     the <code>publicId</code> attribute value as a public identifier</a>.</li>  
     <li><a href="#algorithm-to-validate-a-system-identifier" title="validate a system identifier">Validate  
     the <code>systemId</code> attribute value as a system identifier</a>.</li>  
     <li>If the <code>publicId</code> attribute value of <var>n</var> is  
     <em>not</em> <code>null</code> and the <code>systemId</code> attribute  
     value of <var>n</var> is <code>null</code>, then raise an  
     <a href="#xml-well-formedness-error" id=wfe-dt-sid><code>xml-well-formedness-error</code></a>.  
     <span class=ed>@@ publicId == null?  Or, publicId == ""</span></li>  
     <li>For each node <dfn id=var-dt-nc><var>n<sub><var>c</var></sub></var></dfn>  
     in the <code>childNodes</code> list of <var>n</var>,  
       <ol>  
       <li>If <var>n<sub><var>c</var></sub></var> is <em>not</em> a  
       <code>ProcessingInstruction</code> node, then it is an  
       <a href="#xml-well-formedness-error" id=wfe-dt-child><code>xml-well-formedness-error</code></a>.  
       <span class=ed>@@ ref to manakai's extensions</span></li>  
       <li>Otherwise, <!-- if n_c is not an EntityReference node, -->  
       <a href="#algorithm-to-check-a-node" title="check a node">check  
       <var>n<sub><var>c</var></sub></var></a> recusrively.</li>  
       </ol></li>  
     <li>For each node in the <code>entities</code>, <code>notations</code>,  
     and <code>elementTypes</code> lists of <var>n</var>,  
     <a href="#algorithm-to-check-a-node" title="check a node">check the  
     node</a> recursively.</li>  
     <li class=ed>@@ externally declared?</li>  
     </ol>  
   </dd>  
 <dt>If <var>n</var> is an <code>Element</code> node</dt>  
   <dd>  
     <ol>  
     <li><a href="#algorithm-to-validate-an-ncname">Validate the  
     <code>localName</code> attribute value as an <code>NCName</code></a>.</li>  
     <li>If the <code>prefix</code> attribute value is different from  
     <code>null</code>, then <a href="#algorithm-to-validate-an-ncname">validate  
     the <code>prefix</code> attribute value as an <code>NCName</code></a>.</li>  
     <li>For each node <dfn id=var-element-nc><var>n<sub><var>c</var></sub></var></dfn>  
     in the <code>childNodes</code> list of <var>n</var>,  
       <ol>  
       <li>If <var>n<sub><var>c</var></sub></var> is <em>not</em> an  
       <code>Element</code>,  
       <code>Text</code>, <code>CDATASection</code>, <code>Comment</code>,  
       <code>ProcessingInstruction</code>, or  
       <code>EntityReference</code> node, then it is an  
       <a href="#xml-well-formedness-error" id=wfe-element-child><code>xml-well-formedness-error</code></a>.</li>  
       <li>Otherwise, if <var>n<sub><var>c</var></sub></var> is an  
       <code>EntityReference</code> node, then it is an  
       <a href="#entity-error" id=ee-element-er><code>entity-error</code></a>.</li>  
       <li>Otherwise,  
       <a href="#algorithm-to-check-a-node" title="check a node">check  
       <var>n<sub><var>c</var></sub></var></a> recursively.</li>  
       </ol></li>  
     <li class=ed>@@ #elementvalid Validity constraint: Element Valid</li>  
     <li>Let <var>attrs</var> be the value of the <code>attribute</code>  
     attribute of <var>n</var>.  Check conformance of <var>attrs</var>  
     as following:  
       <ol>  
       <li>If <var>attrs</var> contains an <code>Attr</code> node whose  
       <code>nodeName</code> attribute value is equal to that of another  
       <code>Attr</code> node in <var>attrs</var>, then raise an  
       <a href="#xml-well-formedness-error" id=wfe-uniqattspec><code>xml-well-formedness-error</code></a>.<!--  
       #uniqattspec Well-formedness constraint: Unique Att Spec --></li>  
       <li class=ed>@@ #RequiredAttr Validity constraint: Required Attribute</li>  
       </ol>  
     </li>  
     </ol>  
   </dd>  
 <dt>If <var>n</var> is an <code>ElementTypeDefinition</code> node</dt>  
   <dd>  
     <ol>  
     <li class=ed></li>  
     <li>If the <code>childNodes</code> list of <var>n</var> contains  
     any nodes, they are in  
     <a href="#xml-well-formedness-error" id=wfe-et-child><code>xml-well-formedness-error</code></a>.</li>  
     <li class=ed>@@ <q cite="http://www.w3.org/TR/2006/REC-xml-20060816/#elemdecls">At user option, an XML processor MAY issue a warning when a declaration mentions an element type for which no declaration is provided, but this is not an error.</q></li>  
     <li class=ed>@@ <q cite="http://www.w3.org/TR/2006/REC-xml-20060816/#sec-element-content">For compatibility, it is an error if the content model allows an element to match more than one occurrence of an element type in the content model. </q></li>  
     <li class=ed>@@ #vc-MixedChildrenUnique  
     Validity constraint: No Duplicate Types</li>  
     <li class=ed>@@ <q cite="http://www.w3.org/TR/2006/REC-xml-20060816/#attdecls">At user option, an XML processor MAY issue a warning if attributes are declared for an element type not itself declared, but this is not an error.</q></li>  
     <li>If there is more than one <code>AttributeDefinition</code> node  
     with <span class=ed>attribute type <code>ID</code></span> in the  
     <code>NamedNodeMap</code> list contained in the  
     <code>attributeDefinitions</code> attribute of <var>n</var>, then raise an  
     <a href="#xml-validity-error" id=vc-one-id-per-el><code>xml-validity-error</code></a>.</li>  
     <li>If there is more than one <code>AttributeDefinition</code> node  
     with <span class=ed>attribute type <code>NOTATION</code></span> in the  
     <code>NamedNodeMap</code> list contained in the  
     <code>attributeDefinitions</code> attribute of <var>n</var>, then raise an  
     <a href="#xml-validity-error" id=vc-one-notation-per><code>xml-validity-error</code></a>.</li>  
     <li class=ed>"For interoperability, the same Nmtoken  SHOULD NOT occur more than once in the enumerated attribute types of a single element type."</li>  
     </ol>  
   </dd>  
 <dt>If <var>n</var> is an <code>Entity</code> node whose  
 <code>notationName</code> attribute value is <code>null</code> (i.e. a  
 parsed entity)</dt>  
   <dd>  
     <ol>  
     <li>Raise an  
     <a href="#entity-error" id=ee-entity-node><code>entity-error</code></a>.</li>  
     <li><a href="#algorithm-to-validate-an-ncname">Validate the  
     <code>nodeName</code> attribute value as an <code>NCName</code></a>.</li>  
     <li><a href="#algorithm-to-validate-a-public-identifier" title="validate a public identifier">Validate  
     the <code>publicId</code> attribute value as a public identifier</a>.</li>  
     <li><a href="#algorithm-to-validate-a-system-identifier" title="validate a system identifier">Validate  
     the <code>systemId</code> attribute value as a system identifier</a>.</li>  
     <li>If the <code>publicId</code> attribute value of <var>n</var> is  
     <em>not</em> <code>null</code> and the <code>systemId</code> attribute  
     value of <var>n</var> is <code>null</code>, then raise an  
     <a href="#xml-well-formedness-error" id=wfe-entity-sid><code>xml-well-formedness-error</code></a>.</li>  
     <li>For each node <dfn id=var-entity-nc><var>n<sub><var>c</var></sub></var></dfn>  
     in the <code>childNodes</code> list of <var>n</var>,  
       <ol>  
       <li>If <var>n<sub><var>c</var></sub></var> is <em>not</em> an  
       <code>Element</code>,  
       <code>Text</code>, <code>CDATASection</code>, <code>Comment</code>,  
       <code>ProcessingInstruction</code>, or <code>EntityReference</code>  
       node, then it is an  
       <a href="#xml-well-formedness-error" id=wfe-entity-child><code>xml-well-formedness-error</code></a>.</li>  
       <li>Otherwise, if <var>n<sub><var>c</var></sub></var> is an  
       <code>EntityReference</code> node, then it is an  
       <a href="#entity-error" id=ee-er-er><code>entity-error</code></a>.</li>  
       <li>Otherwise,  
       <a href="#algorithm-to-check-a-node" title="check a node">check  
       <var>n<sub><var>c</var></sub></var></a> recursively.</li>  
       </ol></li>  
     </ol>  
   </dd>  
 <dt>If <var>n</var> is an <code>Entity</code> node whose  
 <code>notationName</code> attribute value is <em>not</em> <code>null</code>  
 (i.e. an unparsed entity)</dt>  
547    <dd>    <dd>
548      <ol>      <p>This method creates a <code>DocumentType</code> node with the specified
549      <li><a href="#algorithm-to-validate-an-ncname">Validate the      name, belonging to the document.</p>
550      <code>nodeName</code> attribute value as an <code>NCName</code></a>.</li>      <p>The
551      <li><a href="#algorithm-to-validate-a-public-identifier" title="validate a public identifier">Validate      <dfn id=createDocumentTypeDefinition-name class=dom-param><var>name</var></dfn>
552      the <code>publicId</code> attribute value as a public identifier</a>.</li>      parameter is the name of the document type.</p>
553      <li><a href="#algorithm-to-validate-a-system-identifier" title="validate a system identifier">Validate  
554      the <code>systemId</code> attribute value as a system identifier</a>.</li>      <p>When invoked, the method <em class=rfc2119>MUST</em> create and
555      <li>If the <code>systemId</code> attribute value of <var>n</var> is      return a <a href="#DocumentType"><code>DocumentType</code></a> node with
556      <code>null</code>, then raise an      the following attributes:</p>
557      <a href="#xml-well-formedness-error" id=wfe-uentity-sid><code>xml-well-formedness-error</code></a>.</li>      <dl>
558      <li><a href="#algorithm-to-validate-an-ncname">Validate the      <dt><code>attributes</code>, <code>parentNode</code></dt>
559      <code>notationName</code> attribute value of <var>n</var> as an        <dd><code>null</code>.</dd>
560      <code>NCName</code></a>.</li>      <dt><a href="#elementTypes"><code>elementTypes</code></a>,
561      <li class=ed>@@ #not-declared Validity constraint: Notation Declared</li>      <a href="#entities"><code>entities</code></a>, and
562      <li>If the <code>childNodes</code> list of <var>n</var> contains      <a href="#notations"><code>notations</code></a></dt>
563      any nodes, they are in        <dd>Empty <code>NamedNodeMap</code> objects respectively.</dd>
564      <a href="#xml-well-formedness-error" id=wfe-uentity-child><code>xml-well-formedness-error</code></a>.</li>      <dt><code>childNodes</code></dt>
565      </ol>        <dd>An empty <code>NodeList</code> object.</dd>
566        <dt><a href="#internalSubset"><code>internalSubset</code></a>,
567        <a href="#publicId"><code>publicId</code></a>, and
568        <a href="#systemId"><code>systemId</code></a></dt>
569          <dd>Empty strings.</dd>
570        <dt><code>manakaiReadOnly</code> <span class=ed>[manakai]</span></dt>
571          <dd><code>false</code>.</dd>
572        <dt><code>nodeName</code></dt>
573          <dd><a href="#createDocumentTypeDefinition-name"><var>name</var></a>.</dd>
574        <dt><code>ownerDocument</code></dt>
575          <dd>The <a href="#Document"><code>Document</code></a> node over which the
576          method is invoked.</dd>
577        </dl>
578        <p>In addition, the method <em class=rfc2119>MUST</em> be marked as
579        containing five general entity declarations: <code>amp</code>,
580        <code>lt</code>, <code>gt</code>, <code>quot</code>, and
581        <code>apos</code>.</p>
582    </dd>    </dd>
583  <dt>If <var>n</var> is an <code>EntityReference</code> node</dt>  <dt><dfn id=createElementTypeDefinition class=dom-method><code>createElementTypeDefinition</code></dfn>,
584    method</dt>
585    <dd>    <dd>
586      <ol>      <p>This method creates a <code>ElementTypeDefinition</code> node with the
587      <li>An <a href="#entity-error" id=ee-er-node><code>entity-error</code></a>.</li>      specified name, belonging to the document.</p>
588      <li><a href="#algorithm-to-validate-an-ncname">Validate the      <p>The <dfn id=createElementTypeDefinition-name class=dom-param><var>name</var></dfn>
589      <code>nodeName</code> attribute value as an <code>NCName</code></a>.</li>      parameter is the name of the element type defined by the element
590      <li>For each node <dfn id=var-er-nc><var>n<sub><var>c</var></sub></var></dfn>      type definition.</p>
591      in the <code>childNodes</code> list of <var>n</var>,  
592        <ol>      <p>When invoked, the method <em class=rfc2119>MUST</em> create and
593        <li>If <var>n<sub><var>c</var></sub></var> is <em>not</em> an      return an
594        <code>Element</code>,      <a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a>
595        <code>Text</code>, <code>CDATASection</code>, <code>Comment</code>,      node with the following attributes:</p>
596        <code>ProcessingInstruction</code>, or <code>EntityReference</code>      <dl>
597        node, then it is an      <dt><a href="#attributeDefinitions"><code>attributeDefinitions</code></a></dt>
598        <a href="#xml-well-formedness-error" id=wfe-er-child><code>xml-well-formedness-error</code></a>.</li>        <dd>An empty <code>NamedNodeMap</code> object.</dd>
599        <li>Otherwise, if <var>n<sub><var>c</var></sub></var> is <em>not</em> an      <dt><a href="#attributes"><code>attributes</code></a>,
600        <code>EntityReference</code> node, then it is an      <code>parentNode</code></dt>
601        <a href="#entity-error" id=ee-entity-er><code>entity-error</code></a>.</li>        <dd><code>null</code>.</dd>
602        <li>Otherwise,      <dt><code>childNodes</code></dt>
603        <a href="#algorithm-to-check-a-node" title="check a node">check        <dd>An empty <code>NodeList</code> object.</dd>
604        <var>n<sub><var>c</var></sub></var></a> recursively.</li>      <dt><code>manakaiReadOnly</code> <span class=ed>[manakai]</span></dt>
605        </ol></li>        <dd><code>false</code>.</dd>
606      </ol>      <dt><a href="#nodeName"><code>nodeName</code></a></dt>
607          <dd><a href="#createElementTypeDefinition-name"><var>name</var></a>.</dd>
608        <dt><code>ownerDocument</code></dt>
609          <dd>The <code>Document</code> node over which the method is invoked.</dd>
610        <dt><a href="#ownerDocumentTypeDefinition"><code>ownerDocumentTypeDefinition</code></a></dt>
611          <dd><code>null</code>.</dd>
612        <dt class=ed>@@ Ensure all attributes are defined</dt>
613        </dl>
614    </dd>    </dd>
615  <dt>If <var>n</var> is a <code>Notation</code> node</dt>  <dt><dfn id=createAttributeDefinition class=dom-method><code>createAttributeDefinition</code></dfn>,
616    method</dt>
617    <dd>    <dd>
618      <ol>      <p>This method creates a <code>AttributeDefinition</code> node with the
619      <li><a href="#algorithm-to-validate-an-ncname">Validate the      specified name, belonging to the document.</p>
620      <code>nodeName</code> attribute value as an <code>NCName</code></a>.</li>      <p>The <dfn id=createAttributeDefinition-name class=dom-param><var>name</var></dfn>
621      <li><a href="#algorithm-to-validate-a-public-identifier" title="validate a public identifier">Validate      parameter is the name of the attribute defined by the attribute
622      the <code>publicId</code> attribute value as a public identifier</a>.</li>      definition.</p>
623      <li><a href="#algorithm-to-validate-a-system-identifier" title="validate a system identifier">Validate  
624      the <code>systemId</code> attribute value as a system identifier</a>.</li>      <p>When invoked, the method <em class=rfc2119>MUST</em> create and
625      <li>If the <code>childNodes</code> list of <var>n</var> contains      return an
626      any nodes, they are in      <a href="#AttributeDefinition"><code>AttributeDefinition</code></a>
627      <a href="#xml-well-formedness-error" id=wfe-notation-child><code>xml-well-formedness-error</code></a>.</li>      node with the following attributes:</p>
628      </ol>      <dl>
629        <dt><a href="#allowedTokens"><code>allowedTokens</code></a></dt>
630          <dd>An empty <code>DOMStringList</code> object.</dd>
631        <dt><a href="#attributes"><code>attributes</code></a>,
632        <a href="#ownerElementTypeDefinition"><code>ownerElementTypeDefinition</code></a>,
633        and <code>parentNode</code></dt>
634          <dd><code>null</code>.</dd>
635        <dt><code>childNodes</code></dt>
636          <dd>An empty <code>NodeList</code> object.</dd>
637        <dt><a href="#declaredType"><code>declaredType</code></a></dt>
638          <dd><a href="#NO_TYPE_ATTR"><code>NO_TYPE_ATTR</code></a>.</dd>
639        <dt><a href="#defaultType"><code>defaultType</code></a></dt>
640          <dd><a href="#UNKNOWN_DEFAULT"><code>UNKNOWN_DEFAULT</code></a>.</dd>
641        <dt><code>manakaiReadOnly</code> <span class=ed>[manakai]</span></dt>
642          <dd><code>false</code>.</dd>
643        <dt><a href="#nodeName"><code>nodeName</code></a></dt>
644          <dd><a href="#createAttributeDefinition-name"><var>name</var></a>.</dd>
645        <dt><code>ownerDocument</code></dt>
646          <dd>The <code>Document</code> node over which the method is invoked.</dd>
647        <dt class=ed>@@ Ensure all attributes are defined</dt>
648        </dl>
649    
650        <!-- This requirement, if not droped, should be part of xml-id spec.
651        <div class=ed>
652        <p>@@ Should we keep these statements?:
653    However, if the &lt;cfg::cfg|xml-id> configuration
654    parameter is set to <code>true</code> and the <var>name</var>
655    is <code>xml:id</code>, then the [CODE(DOMa)@en[[[declaredType]]]]
656    attribute is set to <code>ID_ATTR</code>.
657    [CODE(DOMa)@en[[[defaultType]]]]?</p>
658        </div>-->
659    </dd>    </dd>
660  <dt>If <var>n</var> is a <code>ProcessingInstruction</code> node</dt>  <dt><dfn id=createGeneralEntity class=dom-method><code>createGeneralEntity</code></dfn>,
661    method</dt>
662    <dd>    <dd>
663      <ol>      <p>This method creates a <a href="#Entity"><code>Entity</code></a> node
664      <li>If the <code>target</code> attribute value matches to the string      with the specified name, which represents a general entity, belonging to
665      <code>xml</code> in any case combination, then raise a      the document.</p>
666      <a href="#xml-well-formedness-error" id=wfe-pi-xml><code>xml-well-formedness-error</code></a>.</li>      <p>The <dfn id=createGeneralEntity-name class=dom-param><var>name</var></dfn>
667      <li>Otherwise, <a href="#algorithm-to-validate-an-ncname">validate the      parameter is the name of the general entity.</p>
668      <code>target</code> attribute value as an <code>NCName</code></a>.</li>  
669      <li>Then,      <p>When invoked, the method <em class=rfc2119>MUST</em> create and return
670      <a href="#algorithm-to-validate-an-xml-character-data" title="validate an XML string">validate      an <a href="#Entity"><code>Entity</code></a> node with the following
671      the <code>data</code> attribute value as an <abbr>XML</abbr> character      attributes:</p>
672      data</a>.</li>      <dl>
673      <li>If the <code>data</code> attribute value contains a string      <dt><code>attributes</code>,
674      <code>?></code>, then raise a      <a href="#notationName"><code>notationName</code></a>,
675      <a href="#xml-well-formedness-error" id=wfe-pi-pic><code>xml-well-formedness-error</code></a>.</li>      <a href="#ownerDocumentTypeDefinition"><code>ownerDocumentTypeDefinition</code></a>,
676      <li>If the <code>data</code> attribute value starts with either      and <code>parentNode</code></dt>
677      <code class=char>U+0009</code> <code class=charname>CHARACTER        <dd><code>null</code>.</dd>
678      TABULATION</code>, <code class=char>U+000A</code> <code class=charname>LINE      <dt><code>childNodes</code></dt>
679      FEED</code>, <code class=char>U+000D</code> <code class=charname>CARRIAGE        <dd>An empty <code>NodeList</code> object.</dd>
680      RETURN</code>, or <code class=char>U+0020</code>      <dt><code>manakaiDeclarationBaseURI</code>,
681      <code class=charname>SPACE</code> character, then raise a      <code>manakaiEntityBaseURI</code>, and
682      <a href="#round-trip-error" id=rte-pi-s><code>round-trip-error</code></a>.</li>      <code>manakaiEntityURI</code> <span class=ed>@@ ref</span></dt>
683      <li>If the <code>childNodes</code> list of <var>n</var> contains        <dd>No explicit value is set.</dd>
684      any nodes, then raise an      <dt><a href="#hasReplacementTree"><code>hasReplacementTree</code></a> and
685      <a href="#xml-well-formedness-error" id=wfe-pi-child><code>xml-well-formedness-error</code></a>.</li>      <code>manakaiReadOnly</code> <span class=ed>[manakai]</span></dt>
686      </ol>        <dd><code>false</code>.</dd>
687        <dt><code>nodeName</code></dt>
688          <dd><a href="#createGeneralEntity-name"><var>name</var></a>.</dd>
689          <dd>
690            <div class="note memo">
691              <p>It is not an error for
692              <a href="#createGeneralEntity-name"><var>name</var></a> matching
693              to the name of one of predefined general parsed entities in
694              <abbr>XML</abbr> or <abbr>HTML</abbr>.  For example,
695              <a href="#createGeneralEntity-name"><var>name</var></a> might be
696              <code>amp</code>, resulting in an
697              <a href="#Entity"><code>Entity</code></a> node
698              with its <code>nodeName</code> attribute set to <code>amp</code>.</p>
699            </div>
700          </dd>
701        <dt><code>ownerDocument</code></dt>
702          <dd>The <code>Document</code> node over which the method is invoked.</dd>
703        <dt><a href="#publicId"><code>publicId</code></a> and
704        <a href="#systemId"><code>systemId</code></a></dt>
705          <dd><code>null</code>.</dd>
706          <dd class=ed>@@ publicId and systemId should be empty string?</dd>
707        <dt class=ed>@@ Ensure all attributes are defined</dd>
708        </dl>
709    </dd>    </dd>
710  <dt>If <var>n</var> is a <code>Text</code> node</dt>  <dt><dfn id=createNotation class=dom-method><code>createNotation</code></dfn>,
711    method</dt>
712    <dd>    <dd>
713      <ol>      <p>This method creates a <code>Notation</code> node with the
714      <li><a href="#algorithm-to-validate-an-xml-character-data" title="validate an XML string">Validate the      specified name, belonging to the document.</p>
715      <code>data</code> attribute value as an <abbr>XML</abbr> character      <p>The <dfn id=createNotation-name class=dom-param><var>name</var></dfn>
716      data</a>.</li>      parameter is the name of the notation.</p>
717      <li>If the <code>childNodes</code> list of <var>n</var> contains  
718      any nodes, they are in      <p>When invoked, the method <em class=rfc2119>MUST</em> create and return
719      <a href="#xml-well-formedness-error" id=wfe-text-child><code>xml-well-formedness-error</code></a>.</li>      a <code>Notation</code> node with the following attributes:</p>
720      </ol>      <dl>
721        <dt><code>attributes</code>,
722        <a href="#ownerDocumentTypeDefinition"><code>ownerDocumentTypeDefinition</code></a>,
723        and <code>parentNode</code></dt>
724          <dd><code>null</code>.</dd>
725        <dt><code>childNodes</code></dt>
726          <dd>An empty <code>NodeList</code> object.</dd>
727        <dt><code>manakaiDeclarationBaseURI</code></dt>
728          <dd>No explicit value is set.</dd>
729        <dt><code>manakaiReadOnly</code> <span class=ed>[manakai]</span></dt>
730          <dd><code>false</code>.</dd>
731        <dt><code>nodeName</code></dt>
732          <dd><a href="#createNotation-name"><var>name</var></a>.</dd>
733        <dt><code>ownerDocument</code></dt>
734          <dd>The <code>Document</code> node over which the method is invoked.</dd>
735        <dt><a href="#publicId"><code>publicId</code></a> and
736        <a href="#systemId"><code>systemId</code></a></dt>
737          <dd><code>null</code>.</dd>
738          <dd class=ed>@@ publicId and systemId should be empty string?</dd>
739        <dt class=ed>@@ Ensure all attributes are defined</dt>
740        </dl>
741    </dd>    </dd>
 <dt>Otherwise</dt>  
   <dd><span class=ed>xml-well-formedness-error?  unknown-error?</span></dd>  
742  </dl>  </dl>
743    
744    <p>These methods <em class=rfc2119>MUST</em> raise an
745    <code>INVALID_CHARACTER_ERR</code> if <var>name</var> is <em>not</em> a legal
746    <code>Name</code>
747    <cite class="bibref normative">[<a href="#ref-XML10">XML10</a>,
748    <a href="#ref-XML11">XML11</a>]</cite> according to the <abbr>XML</abbr>
749    version specified in the <code>xmlVersion</code> attribute of the
750    <a href="#Document"><code>Document</code></a> node.</p>
751    
752    <div class="note memo">
753    <p>Non$B!>(B<abbr>XML</abbr> case is intentionally left unspecified for now,
754    since <abbr>DOM</abbr> Level 3 Core specification
755    <cite class="bibref normative">[<a href="#ref-DOM3CORE">DOM3CORE</a>]</cite>
756    does not define it for <a href="#Document"><code>Document</code></a>
757    methods.</p>
758    
759    <p><var>name</var> does not have to be a namespace qualified name.</p>
760  </div>  </div>
761    
762  </div>  </div>
763    
 <div id=classes class=section>  
 <h2>Character Classes</h2>  
764    
765  <p>This section defines a couple of character classes.  <div class=section id=section-documenttype>
766  These classes are referred to by algorithms specified above.</p>  <h3>Modifications to the <code id=DocumentType>DocumentType</code>
767    Interface</h3>
768    
769    <p>A <a href="#DocumentType"><code>DocumentType</code></a> interface
770    <em class=rfc2119>MAY</em> contain zero or more
771    <a href="#ProcessingInstruction"><code>ProcessingInstruction</code></a>
772    nodes in the <code>NodeList</code> object contained in the
773    <code>childNodes</code> attribute of the
774    <a href="#DocumentType"><code>DocumentType</code></a> node.</p>
775    
776    <p>If the <a href="#DocumentType"><code>DocumentType</code></a> node is created
777    during the process to create a <abbr>DOM</abbr> from an <abbr>XML</abbr>
778    document, the <code>NodeList</code> object in the <code>childNodes</code>
779    object <em class=rfc2119>MUST</em> contains the
780    <a href="#ProcessingInstruction"><code>ProcessingInstruction</code></a>
781    nodes representing the processing instructions in the document type
782    definition of the document processed
783    <cite class="bibref normative">[<a href="#ref-XML10">XML10</a>,
784    <a href="#ref-XML11">XML11</a>]</cite> by the <abbr>XML</abbr> processor.  If
785    the <a href="#DocumentType"><code>DocumentType</code></a> node is marked as
786    <a href="#read-only">read$B!>(Bonly</a>, then all the child nodes
787    <em class=rfc2119>MUST</em> also be marked as
788    <a href="#read-only">read$B!>(Bonly</a>.</p>
789    
790    <p>If a <a href="#DocumentType"><code>DocumentType</code></a> node is created
791    from a
792    <a href="http://www.w3.org/TR/2004/REC-xml-infoset-20040204/#infoitem.doctype">document
793    type declaration information item</a>
794    <cite class="bibref normative">[<a href="#ref-INFOSET">INFOSET</a>]</cite>,
795    the <code>NodeList</code> object in the <code>childNodes</code> attribute
796    of the node <em class=rfc2119>MUST</em> contain the
797    <a href="#ProcessingInstruction"><code>ProcessingInstruction</code></a> nodes
798    created from the processing instruction information items in the list in the
799    [children] property of the document type declaration item in the same
800    order.</p>
801    
802    <p>If a <a href="#DocumentType"><code>DocumentType</code></a> node is mapped to
803    a document type declaration information item, the list in the [children]
804    property <em class=rfc2119>MUST</em> contain the processng instruction
805    information items created from the
806    <a href="#ProcessingInstruction"><code>ProcessingInstruction</code></a> nodes
807    in the <code>NodeList</code> object in the <code>childNodes</code> attribute
808    of the <a href="#DocumentType"><code>DocumentType</code></a> node.</p>
809    
810    <p>The implementation of the
811    <a href="#DocumentType"><code>DocumentType</code></a> interface
812    <em class=rfc2119>MUST</em> be modified as the following
813    <a href="#idl-fragment"><abbr>IDL</abbr> fragment</a>:</p>
814    <pre class=idl><code>// Modifications to the DocumentType interface
815      attribute DOMString <a href="#publicId">publicId</a>;
816      attribute DOMString <a href="#systemId">systemId</a>;
817    
818      attribute DOMString <a href="#internalSubset">internalSubset</a>;
819    </code></pre>
820    
821    <p>The <code id=publicId>publicId</code> attribute and the
822    <code id=systemId>systemId</code> attribute of
823    <a href="#DocumentType"><code>DocumentType</code></a>,
824    <a href="#Entity"><code>Entity</code></a>, and
825    <a href="#Notation"><code>Notation</code></a> interfaces are no longer
826    read$B!>(Bonly.</p>
827    
828    <p>On setting, the attribute <em class=rfc2119>MUST</em> raise a
829    <code>NO_MODIFICATION_ALLOWED_ERR</code> if the node is
830    <a href="#read-only">read$B!>(Bonly</a>.  Otherwise, it <em class=rfc2119>MUST</em>
831    set the specified value as the value associated to the attribute.  No
832    normalization, relative reference resolution, or lexical validation is
833    performed. <span class=ed>@@ If the new value is <code>null</code>, should an e
834    mpty string be set?</span></p>
835    
 <p>Character class <dfn id=class-Char10><code>Char10</code></dfn>  
 contains the following characters:</p>  
 <ul>  
 <li><code class=char>U+0009</code> <code class=charname>CHARACTER  
 TABULATION</code></li>  
 <li><code class=char>U+000A</code> <code class=charname>LINE FEED</code></li>  
 <li><code class=char>U+000D</code> <code class=charname>CARRIAGE  
 RETURN</code></li>  
 <li><code class=char>U+0020</code> <code class=charname>SPACE</code>  
 .. <code class=char>U+D7FF</code></li>  
 <li><code class=char>U+E000</code> .. <code class=char>U+FFFD</code>  
 <code class=charname>REPLACEMENT CHARACTER</code></li>  
 <li><code class=char>U+10000</code> .. <code class=char>U+10FFFF</code></li>  
 </ul>  
 <div class="note memo">  
 <p>This character class contains all characters allowed in the production rule  
 <a href="http://www.w3.org/TR/2006/REC-xml-20060816/#NT-Char"><code>Char</code></a>  
 of <abbr>XML</abbr> 1.0  
 <cite class="bibref normative">[<a href="#ref-XML10">XML10</a>]</cite>.</p>  
 </div>  
   
 <p>Character class <dfn id=class-CompatChar10><code>CompatChar10</code></dfn>  
 contains the following characters:</p>  
 <ul>  
 <li class=ed>@@ <q>Document authors are encouraged to avoid "compatibility characters", as defined in section 6.8 of [Unicode @@ Unicode 2.0 @@] (see also D21 in section 3.6 of [Unicode3]).</q></li>  
 </ul>  
   
 <p>Character class <dfn id=class-ControlChar10><code>ControlChar10</code></dfn>  
 contains the following characters:</p>  
 <ul>  
 <li><code class=char>U+007F</code> <code class=charname>DELETE</code> ..  
 <code class=char>U+0084</code> <code class=charname>INDEX</code></li>  
 <li><code class=char>U+0086</code> <code class=charname>START OF SELECTED  
 AREA</code> .. <code class=char>U+009F</code> <code class=charname>APPLICATION  
 PROGRAM COMMAND</code></li>  
 <li><code class=char>U+FDD0</code> .. <code class=char>U+FDEF</code></li>  
 <li><code class=char>U+1FFFE</code> .. <code class=char>U+1FFFF</code></li>  
 <li><code class=char>U+2FFFE</code> .. <code class=char>U+2FFFF</code></li>  
 <li><code class=char>U+3FFFE</code> .. <code class=char>U+3FFFF</code></li>  
 <li><code class=char>U+4FFFE</code> .. <code class=char>U+4FFFF</code></li>  
 <li><code class=char>U+5FFFE</code> .. <code class=char>U+5FFFF</code></li>  
 <li><code class=char>U+6FFFE</code> .. <code class=char>U+6FFFF</code></li>  
 <li><code class=char>U+7FFFE</code> .. <code class=char>U+7FFFF</code></li>  
 <li><code class=char>U+8FFFE</code> .. <code class=char>U+8FFFF</code></li>  
 <li><code class=char>U+9FFFE</code> .. <code class=char>U+9FFFF</code></li>  
 <li><code class=char>U+AFFFE</code> .. <code class=char>U+AFFFF</code></li>  
 <li><code class=char>U+BFFFE</code> .. <code class=char>U+BFFFF</code></li>  
 <li><code class=char>U+CFFFE</code> .. <code class=char>U+CFFFF</code></li>  
 <li><code class=char>U+DFFFE</code> .. <code class=char>U+DFFFF</code></li>  
 <li><code class=char>U+EFFFE</code> .. <code class=char>U+EFFFF</code></li>  
 <li><code class=char>U+FFFFE</code> .. <code class=char>U+FFFFF</code></li>  
 <li><code class=char>U+10FFFE</code> .. <code class=char>U+10FFFF</code></li>  
 </ul>  
836  <div class="note memo">  <div class="note memo">
837  <p>This character class contains the characters listed in the Note in  <p>Setting an invalid identifier might make the node unserializable.
838  <a href="http://www.w3.org/TR/2006/REC-xml-20060816/#charsets">Section 2.2</a>  Setting a public identifier while leaveing system identifier unspecified
839  of <abbr>XML</abbr> 1.0  would also make the <a href="#DocumentType"><code>DocumentType</code></a>
840  <cite class="bibref normative">[<a href="#ref-XML10">XML10</a>]</cite>,  or <a href="#Entity"><code>Entity</code></a> node unserializable.</p>
 as amended by  
 <a href="http://www.w3.org/XML/xml-V10-4e-errata#E02">errata</a>.</p>  
841  </div>  </div>
842    
843  <p>The character class <dfn id=class-NameStartChar10><code>NameStartChar10</code></dfn>  <div class=ed>
844  contains the following characters:</p>  <p>ISSUE: In HTML5, Firefox 1.5, and Opera 9, not specifying public or system identifier results in empty strings.</p>
 <ul class=ed>  
 </ul>  
 <div class="note memo">  
 <p>This character class contains all characters allowed as the first character  
 of a string matching to the production rule  
 <a href="http://www.w3.org/TR/2006/REC-xml-20060816/#NT-Name"><code>Name</code></a>  
 of <abbr>XML</abbr> 1.0  
 <cite class="bibref normative">[<a href="#ref-XML10">XML10</a>]</cite>.</p>  
845  </div>  </div>
846    
847  <p>The character class <dfn id=class-NameChar10><code>NameChar10</code></dfn>  <p>The <code id=internalSubset>internalSubset</code> attribute of the
848  contains the following characters:</p>  <a href="#DocumentType"><code>DocumentType</code></a> interface is no longer
849  <ul>  read$B!>(Bonly.</p>
850  <li>The characters in the character class  
851  <a href="#class-NameStartChar10">NameStartChar10</a>.</li>  <p>On setting, the attribute <em class=rfc2119>MUST</em> raise a
852  <li class=ed></li>  <code>NO_MODIFICATION_ALLOWED_ERR</code> if the node is
853  </ul>  <a href="#read-only">read$B!>(Bonly</a>.  Otherwise, it <em class=rfc2119>MUST</em>
854    set the specified value as the value associated to the attribute.  No
855    normalization, or lexical validation is performed.  <span class=ed>@@ If the
856    new value is <code>null</code>, should an empty string be set?</span></p>
857    
858    </div>
859    
860    <div class=section id=section-documenttypedefinition>
861    <h3>The <code>DocumentTypeDefinition</code> Interface</h3>
862    
863    <p>The <a href="#DocumentType"><code>DocumentType</code></a> nodes
864    <em class=rfc2119>MUST</em> also implement the
865    <a href="#DocumentTypeDefinition"><code>DocumentTypeDefinition</code></a>
866    interface.</p>
867    
868    <p>An instance of the
869    <a href="#DocumentTypeDefinition"><code>DocumentTypeDefinition</code></a>
870    interface <em class=rfc2119>MUST</em> be able to be obtained by using
871    binding$B!>(Bspecific casting methods on an instance of the
872    <a href="#DocumentType"><code>DocumentType</code></a> interface (if such
873    casting methods are available) or by using the method <code>getFeature</code>
874    with parameter values
875    <a href="#feature-XDoctype"><code>http://suika.fam.cx/www/2006/feature/XDoctype</code></a>
876    and <a href="#feature-XDoctype-3.0"><code>3.0</code></a> respectively (if the
877    <a href="#DocumentType"><code>DocumentType</code></a> node supports the
878    feature <code>Core</code> version <code>3.0</code>
879    <cite class="bibref normative">[<a href="#ref-DOM3CORE">DOM3CORE</a>]</cite>).</p>
880    
881  <div class="note memo">  <div class="note memo">
882  <p>This character class contains all characters allowed as the second  <p>This interface is a separated interface from the
883  character of a string matching to the production rule  <a href="#DocumentType"><code>DocumentType</code></a>, not a set of extensions
884  <a href="http://www.w3.org/TR/2006/REC-xml-20060816/#NT-Name"><code>Name</code></a>  to the <a href="#DocumentType"><code>DocumentType</code></a>,
885  of <abbr>XML</abbr> 1.0  for the historical reason.</p>
886  <cite class="bibref normative">[<a href="#ref-XML10">XML10</a>]</cite>.</p>  
887  </div>  <p class=ed>Should the interface be merged with
888    <a href="#DocumentType"><code>DocumentType</code></a>?</p>
889  <p>The character class <dfn id=class-PubidChar><code>PubidChar</code></dfn>  </div>
890  contains the following characters:</p>  
891  <ul>  <p>The
892  <li><code class=char>U+0009</code> <code class=charname>CHARACTER  <a href="#DocumentTypeDefinition"><code>DocumentTypeDefinition</code></a>
893  TABULATION</code></li>  interface <em class=rfc2119>MUST</em> be implemented as the following
894  <li><code class=char>U+000A</code> <code class=charname>LINE FEED</code></li>  <a href="#idl-fragment"><abbr>IDL</abbr> fragment</a>:</p>
895  <li><code class=char>U+000D</code> <code class=charname>CARRIAGE  <pre class=idl><code>interface <dfn id=DocumentTypeDefinition><code>DocumentTypeDefinition</code></dfn> {
896  RETURN</code></li>    readonly attribute NamedNodeMap <a href="#elementTypes">elementTypes</a>;
897  <li><code class=char>U+0020</code> <code class=charname>SPACE</code></li>    readonly attribute NamedNodeMap <a href="#generalEntities">generalEntities</a>;
898  <li><code class=char>U+0021</code> <code class=charname>EXCLAMATION MARK</code>    readonly attribute NamedNodeMap <a href="#notations">notations</a>;
899  (<code class=char>!</code>)</li>  
900  <li><code class=char>U+0023</code> <code class=charname>DOLLAR SIGN</code>    <a href="#ElementTypeDefinition">ElementTypeDefinition</a> <a href="#getElementTypeDefinitionNode">getElementTypeDefinitionNode</a>
901  (<code class=char>$</code>)</li>      (in DOMString <a href="#getElementTypeDefinitionNode-name"><var>name</var></a>);
902  <li><code class=char>U+0024</code> <code class=charname>NUMBER SIGN</code>    <a href="#Entity">Entity</a> <a href="#getGeneralEntityNode">getGeneralEntityNode</a>
903  (<code class=char>#</code>)</li>      (in DOMString <a href="#getGeneralEntityNode-name"><var>name</var></a>);
904  <li><code class=char>U+0025</code> <code class=charname>PERCENT SIGN</code>    <a href="#Notation">Notation</a> <a href="#getNotationNode">getNotationNode</a>
905  (<code class=char>%</code>)</li>      (in DOMString <a href="#getNotationNode-name"><var>name</var></a>);
906  <li><code class=char>U+0027</code> <code class=charname>APOSTROPHE</code>  
907  (<code class=char>'</code>)</li>    void <a href="#setElementTypeDefinitionNode">setElementTypeDefinitionNode</a>
908  <li><code class=char>U+0028</code> <code class=charname>LEFT PARENTHESIS</code>      (in DOMString <a href="#setElementTypeDefinitionNode-node"><var>node</var></a>)
909  (<code class=char>(</code>)</li>      raises (DOMException);
910  <li><code class=char>U+0029</code> <code class=charname>RIGHT    void <a href="#setGeneralEntityNode">setGeneralEntityNode</a>
911  PARENTHESIS</code> (<code class=char>)</code>)</li>      (in DOMString <a href="#setGeneralEntityNode-node"><var>node</var></a>)
912  <li><code class=char>U+002A</code> <code class=charname>ASTERISK</code>      raises (DOMException);
913  (<code class=char>*</code>)</li>    void <a href="#setNotationNode">setNotationNode</a>
914  <li><code class=char>U+002B</code> <code class=charname>PLUS SIGN</code>      (in DOMString <a href="#setNotationNode-node"><var>node</var></a>)
915  (<code class=char>+</code>)</li>      raises (DOMException);
916  <li><code class=char>U+002C</code> <code class=charname>COMMA</code>  }</code></pre>
917  (<code class=char>,</code>)</li>  
918  <li><code class=char>U+002D</code> <code class=charname>HYPHEN-MINUS</code>  <dl>
919  (<code class=char>-</code>)</li>  <dt><dfn id=elementTypes class=dom-attr><code>elementTypes</code></dfn> of
920  <li><code class=char>U+002E</code> <code class=charname>FULL STOP</code>  type <code>NamedNodeMap</code>, read$B!>(Bonly</dt>
921  (<code class=char>.</code>)</li>    <dd><p>A <a href="#live">live</a> <code>NamedNodeMap</code> object that
922  <li><code class=char>U+002F</code> <code class=charname>SOLIDUS</code>    contains all the element type definitions belonging to the
923  (<code class=char>/</code>)</li>    <a href="#DocumentType"><code>DocumentType</code></a> node.</p>
924  <li><code class=char>U+0030</code> <code class=charname>DIGIT ZERO</code>  
925  (<code class=char>0</code>) .. <code class=char>U+0039</code>    <p>On getting, the attribute <em class=rfc2119>MUST</em> return the
926  <code class=charname>DIGIT NINE</code> (<code class=char>9</code>)</li>    <code>NamedNodeMap</code> object that contains all the
927  <li><code class=char>U+003A</code> <code class=charname>COLON</code>    <a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a>
928  (<code class=char>:</code>)</li>    nodes belonging to the <code>DocumentType</code> node.  The
929  <li><code class=char>U+003B</code> <code class=charname>SEMICOLON</code>    <code>NamedNodeMap</code> object <em class=rfc2119>MUST</em> be read$B!>(Bonly
930  (<code class=char>;</code>)</li>    if and only if the node is <a href="#read-only">read$B!>(Bonly</a>.  The
931  <li><code class=char>U+003D</code> <code class=charname>EQUAL SIGN</code>    <code>NamedNodeMap</code> object <em class=rfc2119>MUST</em> be
932  (<code class=char>=</code>)</li>    <a href="#live">live</a>.</p>
933  <li><code class=char>U+003F</code> <code class=charname>QUESTION MARK</code>  
934  (<code class=char>?</code>)</li>    <p>If the <code>DocumentType</code> node is created during the process
935  <li><code class=char>U+0040</code> <code class=charname>COMMERCIAL AT</code>    to create a <abbr>DOM</abbr> from an <abbr>XML</abbr> document, the following
936  (<code class=char>@</code>)</li>    requirements are applied:  The <code>NamedNodeMap</code> object in the
937  <li><code class=char>U+0041</code> <code class=charname>LATIN CAPITAL LETTER    <a href="#elementTypes"><code>elementType</code></a> attribute
938  A</code> (<code class=char>A</code>) .. <code class=char>U+005A</code>    <em class=rfc2119>MUST</em> be so transformed that the object contains
939  <code class=charname>LATIN CAPITAL LETTER Z</code>    the <code>ElementTypeDefinition</code> nodes for the element types
940  (<code class=char>Z</code>)</li>    whose name is presented as the <code>Name</code> of the element type or
941  <li><code class=char>U+005F</code> <code class=charname>LOW LINE</code>    attribute definition list declarations processed
942  (<code class=char>_</code>)</li>    <cite class="bibref normative">[<a href="#ref-XML10">XML10</a>,
943  <li><code class=char>U+0061</code> <code class=charname>LATIN CAPITAL LETTER    <a href="#ref-XML11">XML11</a>]</cite> by the <abbr>XML</abbr>
944  A</code> (<code class=char>A</code>) .. <code class=char>U+007A</code>    processor.  If there are more than one element type declarations for an
945  <code class=charname>LATIN CAPITAL LETTER Z</code>    element type, then the declarations other than the first one
946  (<code class=char>Z</code>)</li>    <em class=rfc2119>MUST</em> be ignored for the purpose of constructing the
947  </ul>    <code>NamedNodeMap</code> object.</p></dd>
948    <dt><dfn id=generalEntities class=dom-attr><code>generalEntities</code></dfn>
949    of type <code>NamedNodeMap</code>, read$B!>(Bonly</dt>
950      <dd><p>A <a href="#live">live</a> <code>NamedNodeMap</code> object that
951      contains all the general entities belonging to the
952      <a href="#DocumentType"><code>DocumentType</code></a> node.</p>
953      
954      <p>On getting, the attribute <em class=rfc2119>MUST</em> return the
955      same value as the <code>entities</code> attribute (defined in the
956      <a href="#DocumentType"><code>DocumentType</code></a> interface) of the same
957      node.</p>
958    
959      <div class="note memo">
960        <p>This attribute is part of the interface for historical reason.</p>
961      </div></dd>
962    <!--
963    All entities declared in the document type definition
964    contained in or referenced from the document entity
965    might not be exposed through this collection, depending
966    on the information provided by the XML processor for
967    the DOM implementation.  In particular, it might not
968    contain any entity if entity references are expanded
969    at the parse time.  An implementation [['''MUST NOT''']]
970    expose an [CODE(DOMi)@en[[[Entity]]]] node whose [CODE(DOMa)@en[[[nodeName]]]]
971    is equal to the name of one of five predefined general entities in
972    XML through the collection as the result of parsing of an XML
973    document that has no error.  Duplicate entity declarations are also discarded.
974    
975    The attribute [['''MUST''']] return the [CODE(DOMi)@en[[[NamedNodeMap]]]]
976    object that contains all the [CODE(DOMi)@en[[[Entity]]]] nodes
977    representing general entities belong to the node.  The returned
978    [CODE(DOMi)@en[[[NamedNodeMap]]]] object [['''MUST''']] be read-only if and only if
979    the node is read-only. Note that the [CODE(DOMi)@en[[[NamedNodeMap]]]] object is live
980    and therefore any change of read-only flag on the node is immediately
981    reflected by that of the object.
982    -->
983    <dt><dfn id=notations class=dom-attr><code>notations</code></dfn> of type
984    <code>notations</code>, read$B!>(Bonly</code>
985      <dd><p>A <a href="#live">live</a> <code>NamedNodeMap</code> object that
986      contains all the notations belonging to the
987      <a href="#DocumentType"><code>DocumentType</code></a> node.</p>
988      
989      <p>On getting, the attribute <em class=rfc2119>MUST</em> return the
990      same value as the <code>notations</code> attribute (defined in the
991      <a href="#DocumentType"><code>DocumentType</code></a> interface) of the same
992      node.</p>
993    
994      <div class="note memo">
995        <p>This attribute is part of the interface for historical reason.</p>
996        <p>Implementations are not required to implement the
997        <code>notations</code> attribute twice (for
998        <a href="#DocumentType"><code>DocumentType</code></a> and
999        <a href="#DocumentTypeDefinition"><code>DocumentTypeDefinition</code></a>
1000        interfaces); they share exactly same definition.</p>
1001      </div></dd>
1002    <!--
1003    If the [CODE(DOMi)@en[[[DocumentTypeDefinition]]]] node is
1004    created from an XML document, duplicate notation declarations, if any, in DTD
1005    [['''MUST NOT''']] result in a node in the [CODE(DOMi)@en[[[NamedNodeMap]]]]
1006    object and only the first declaration [['''MUST''']] be
1007    made available as a [CODE(DOMi)@en[[[Notation]]]] node.
1008    
1009    ;; This definition is based on one for the
1010    [CODE(DOMa)@en[[[notations]]]] attribute of the
1011    [CODE(DOMi)@en[[[DocumentType]]]] interface in DOM XML module.
1012    Since duplication is violation to the Validity Constraint,
1013    XML parsers might vary on how notations are notified to
1014    the application.  In particular, [CODE(InfoProp)@en[[[notations]]]]
1015    property of the document information item in XML Information Set
1016    is so defined that in case ''any'' notation is declared for
1017    multiple times then the property has no value.
1018    
1019    The attribute [['''MUST''']] return the [CODE(DOMi)@en[[[NamedNodeMap]]]]
1020    object that contains all the [CODE(DOMi)@en[[[Notation]]]] nodes
1021    representing notations belong to the node.  The returned
1022    [CODE(DOMi)@en[[[NamedNodeMap]]]] object [['''MUST''']] be read-only if and only if
1023    the node is read-only. Note that the [CODE(DOMi)@en[[[NamedNodeMap]]]] object is live
1024    and therefore any change of read-only flag on the node is immediately
1025    reflected by that of the object.
1026    -->
1027    <dt><dfn id=getElementTypeDefinitionNode class=dom-method><code>getElementTypeDefinitionNode</code></dfn>,
1028    method</dt>
1029      <dd><p>Returns the
1030      <a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a> node
1031      with the specified name.</p>
1032    
1033      <p>The
1034      <dfn id=getElementTypeDefinitionNode-name class=dom-param><var>name</var></dfn>
1035      parameter is the name of the element type.</p>
1036    
1037      <p>When invoked, the method <em class=rfc2119>MUST</em> return the
1038      <a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a> node,
1039      whose <a href="#nodeName"><code>nodeName</code></a> is equal to
1040      <a href="#getElementTypeDefinitionNode-name"><var>name</var></a>, in the
1041      <code>NamedNodeMap</code> object in the
1042      <a href="#elementTypes"><code>elementTypes</code></a> attribute of the
1043      node.  If there is no such node, it <em class=rfc2119>MUST</em> return
1044      <code>null</code>.</p></dd>
1045    <dt><dfn id=getElementTypeDefinitionNode class=dom-method><code>getElementTypeDefinitionNode</code></dfn>,
1046    method</dt>
1047      <dd><p>Returns the
1048      <a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a> node
1049      with the specified name.</p>
1050    
1051      <p>The
1052      <dfn id=getElementTypeDefinitionNode-name class=dom-param><var>name</var></dfn>
1053      parameter is the name of the element type.</p>
1054    
1055      <p>When invoked, the method <em class=rfc2119>MUST</em> return the
1056      <a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a> node,
1057      whose <a href="#nodeName"><code>nodeName</code></a> is equal to
1058      <a href="#getElementTypeDefinitionNode-name"><var>name</var></a>, in the
1059      <code>NamedNodeMap</code> object in the
1060      <a href="#elementTypes"><code>elementTypes</code></a> attribute of the
1061      node.  If there is no such node, it <em class=rfc2119>MUST</em> return
1062      <code>null</code>.</p></dd>
1063    <dt><dfn id=getGeneralEntityNode class=dom-method><code>getGeneralEntityNode</code></dfn>,
1064    method</dt>
1065      <dd><p>Returns the <a href="#Entity"><code>Entity</code></a> node
1066      with the specified name.</p>
1067    
1068      <p>The <dfn id=getEntityNode-name class=dom-param><var>name</var></dfn>
1069      parameter is the name of the general entity.</p>
1070    
1071      <p>When invoked, the method <em class=rfc2119>MUST</em> return the
1072      <a href="#Entity"><code>Entity</code></a> node,
1073      whose <a href="#nodeName"><code>nodeName</code></a> is equal to
1074      <a href="#getEntityNode-name"><var>name</var></a>, in the
1075      <code>NamedNodeMap</code> object in the
1076      <a href="#entities"><code>entities</code></a> attribute of the
1077      node.  If there is no such node, it <em class=rfc2119>MUST</em> return
1078      <code>null</code>.</p></dd>
1079    <dt><dfn id=getNotationNode class=dom-method><code>getNotationNode</code></dfn>,
1080    method</dt>
1081      <dd><p>Returns the <a href="#Notation"><code>Notation</code></a> node
1082      with the specified name.</p>
1083    
1084      <p>The
1085      <dfn id=getNotationNode-name class=dom-param><var>name</var></dfn>
1086      parameter is the name of the notation.</p>
1087    
1088      <p>When invoked, the method <em class=rfc2119>MUST</em> return the
1089      <a href="#Notation"><code>Notation</code></a> node,
1090      whose <a href="#nodeName"><code>nodeName</code></a> is equal to
1091      <a href="#getNotationNode-name"><var>name</var></a>, in the
1092      <code>NamedNodeMap</code> object in the
1093      <a href="#notations"><code>notations</code></a> attribute of the
1094      node.  If there is no such node, it <em class=rfc2119>MUST</em> return
1095      <code>null</code>.</p></dd>
1096    <dt><dfn id=setElementTypeDefinitionNode class=dom-method><code>setElementTypeDefinitionNode</code></dfn>,
1097    method</dt>
1098      <dd class=ed>@@</dd>
1099    <dt><dfn id=setGeneralEntityNode class=dom-method><code>setGeneralEntityNode</code></dfn>,
1100    method</dt>
1101      <dd class=ed>@@</dd>
1102    <dt><dfn id=setNotationNode class=dom-method><code>setNotationNode</code></dfn>,
1103    method</dt>
1104      <dd class=ed>@@</dd>
1105    </dl>
1106    
1107    <div class=ed>
1108    <p>A future version of this interface might define the
1109    <code>parameterEntities</code> and getter/setter for parameter entities.
1110    </div>
1111    
1112    </div>
1113    
1114    <div class=section id=section-elementtypedefinition>
1115    <h3>The <code>ElementTypeDefinition</code> Interface</h3>
1116    
1117    <p>The nodes of type
1118    <a href="#ELEMENT_TYPE_DEFINITION_NODE"><code>ELEMENT_TYPE_DEFINITION_NODE</code></a>
1119    represents an element type definition.  Such a node
1120    <em class=rfc2119>MUST</em> implement the
1121    <a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a>
1122    interface, which extends the <a href="#Node"><code>Node</code></a>
1123    interface.</p>
1124    
1125    <p>An element type definition represents a definition of the element type.
1126    It is corresponding to the element type declaration in <abbr>DTD</abbr>.
1127    However, an
1128    <a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a> node
1129    does not represent the element type definition in <abbr>DTD</abbr> itself.  
1130    Even if there are more than one element type declarations for an element type
1131    in <abbr>DTD</abbr>, the result <abbr>DOM</abbr> will contain only an
1132    <a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a>
1133    node for that element type.  In addition, if there are attribute definition
1134    declarations for an element type, even when there is no element type
1135    declaration for that element type, the <abbr>DOM</abbr> will contain an
1136    <a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a>
1137    node for that element type.</p>
1138    
1139    <p>An <a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a>
1140    node cannot be a child of any node.  An
1141    <a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a> node
1142    cannot have any child node.</p>
1143    
1144    <p>The <a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a>
1145    interface <em class=rfc2119>MUST</em> be implemented as the following
1146    <a href="#idl-fragment"><abbr>IDL</abbr> fragment</a>:</p>
1147    <pre class=idl><code>interface <dfn id=ElementTypeDefinition><code>ElementTypeDefinition</code></dfn> : <a href="#Node">Node</a> {
1148      readonly attribute <a href="#DocumentType">DocumentType</a> <a href="#ownerDocumentTypeDefinition">ownerDocumentTypeDefinition</a>;
1149    
1150      readonly attribute NamedNodeMap <a href="#attributeDefinitions">attributeDefinitions</a>;
1151      <a href="#AttributeDefinition">AttributeDefinition</a> <a href="#getAttributeDefinitionNode">getAttributeDefinitionNode</a>
1152        (in DOMString <a href="#getAttributeDefinitionNode-name"><var>name</var></a>);
1153      void <a href="#setAttributeDefinitionNode">setAttributeDefinitionNode</a>
1154        (in <a href="#AttributeDefinition">AttributeDefinition</a> <a href="#setAttributeDefinitionNode-name"><var>node</var></a>)
1155        raises (DOMException);
1156    }</code></pre>
1157    
1158    <dl>
1159    <dt><dfn id=ownerDocumentTypeDefinition class=dom-attr><code>ownerDocumentTypeDefinition</code></dfn>
1160    of type <a href="#DocumentType"><code>DocumentType</code></a>, read$B!>(Bonly</dt>
1161      <dd><p>The
1162      <a href="#ownerDocumentTypeDefinition"><code>ownerDocumentTypeDefinition</code></a>
1163      attribute of
1164      <a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a>,
1165      <a href="#Entity"><code>Entity</code></a>, and
1166      <a href="#Notation"><code>Notation</code></a> interfaces contain the
1167      <a href="#DocumentType"><code>DocumentType</code></a> node to which the node
1168      is attached.</p>
1169    
1170      <p>On getting, the attribute <em class=rfc2119>MUST</em> return a
1171      <a href="#DocumentType"><code>DocumentType</code></a> node.  It
1172      <em class=rfc2119>MUST</em> be such a node that whose
1173      <a href="#elementTypes"><code>elementTypes</code></a> (for an
1174      <a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a>
1175      node), <a href="#entities"><code>entities</code></a> (for an
1176      <a href="#Entity"><code>Entity</code></a> node), or
1177      <a href="#notations"><code>notations</code></a> (for a
1178      <a href="#Notation"><code>Notation</code></a> node) attribute contains the
1179      <code>NamedNodeMap</code> object that contains the node.  If there is no such
1180      a <a href="#DocumentType"><code>DocumentType</code></a> node,
1181      then <code>null</code> <em class=rfc2119>MUST</em> be returned.</p></dd>
1182    <dt><dfn id=attributeDefinitions class=dom-attr><code>attributeDefinitions</code></dfn>
1183    of type NamedNodeMap, read$B!>(Bonly</dt>
1184      <dd><p>A <a href="#live">live</a> <code>NamedNodeMap</code> object that
1185      contains all the attribute definitions belonging to the
1186      <a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a>
1187      node.</p>
1188    
1189      <p>On getting, the attribute <em class=rfc2119>MUST</em> return the
1190      <code>NamedNodeMap</code> object that contains all the
1191      <a href="#AttributeDefinition"><code>AttributeDefinition</code></a> node
1192      belonging to the
1193      <a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a> node.
1194      The <code>NamedNodeMap</code> object <em class=rfc2119>MUST</em> be
1195      read$B!>(Bonly if and only if the node is <a href="#read-only">read$B!>(Bonly</a>.  
1196      The <code>NamedNodeMap</code> object <em class=rfc2119>MUST</em> be
1197      <a href="#live">live</a>.</p>
1198      
1199      <p>If the
1200      <a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a> node
1201      is created during the process to create a <abbr>DOM</abbr> from an
1202      <abbr>XML</abbr> document, the following requirements are applied:  The
1203      <code>NamedNodeMap</code> object in the
1204      <a href="#attributeDefinitions"><code>attributeDefinitions</code></a>
1205      attribute <em class=rfc2119>MUST</em> be so transformed that the object
1206      contains the
1207      <a href="#AttributeDefinition"><code>AttributeDefinition</code></a> node
1208      corresponding to the attribute definitions in the attribute definition
1209      list declarations processed
1210      <cite class="bibref normative">[<a href="#ref-XML10">XML10</a>,
1211      <a href="#ref-XML11">XML11</a>]</cite> by the <abbr>XML</abbr> processor and
1212      associated to the element type represented by the node.  If there are more
1213      than one attribute definitions for an attribute, then the definitions other
1214      than the first one <em class=rfc2119>MUST</em> be ignored for the purpose
1215      of constructing the <code>NamedNodeMap</code> object.</p></dd>
1216    <dt><dfn id=getAttributeDefinitionNode class=dom-method><code>getAttributeDefinitionNode</code></dfn>,
1217    method</dt>
1218      <dd><p>Return the
1219      <a href="#AttributeDefinition"><code>AttributeDefinition</code></a> node
1220      with the specified name.</p>
1221    
1222      <p>The
1223      <dfn id=getAttributeDefinitionNode-name class=dom-param><var>name</var></dfn>
1224      parameter is the name of the attribute.</p>
1225    
1226      <p>When invoked, the method <em class=rfc2119>MUST</em> return the
1227      <a href="#AttributeDefinition"><code>AttributeDefinition</code></a> node,
1228      whose <a href="#nodeName"><code>nodeName</code></a> attribute value is
1229      equal to <a href="#getAttributeDefinitionNode-name"><var>name</var></a>,
1230      in the <code>NamedNodeMap</code> in the
1231      <a href="#attributeDefinitions"><code>attributeDefinitions</code></a>
1232      attribute of the node.  If there is no such node, it
1233      <em class=rfc2119>MUST</em> return <code>null</code>.</p></dd>
1234    <dt><dfn id=setAttributeDefinitionNode class=dom-method><code>setAttributeDefinitionNode</code></dfn>,
1235    method</dt>
1236      <dd class=ed>@@</dd>
1237    </dl>
1238    
1239    <div class=ed>
1240    <p>A future version of the specification might define a set of attributes
1241    and methods for representing and accessing to the content model of the
1242    element type.</p>
1243    </div>
1244    </div>
1245    
1246    <div class=section id=section-attributedefinition>
1247    <h3>The <code>AttributeDefinition</code> Interface</h3>
1248    
1249    <p>The nodes of type
1250    <a href="#ATTRIBUTE_DEFINITION_NODE"><code>ATTRIBUTE_DEFINITION_NODE</code></a>
1251    represents an attribute definition.  Such a node
1252    <em class=rfc2119>MUST</em> implement the
1253    <a href="#AttributeDefinition"><code>AttributeDefinition</code></a> interface,
1254    which extends the <a href="#Node"><code>Node</code></a> interface.</p>
1255    
1256    <p>An attribute definition represents a definition of the attribute
1257    associated to an element type.  It is corresponding to the attribute definition
1258    in the attribute list declaration in <abbr>DTD</abbr>.  However, an
1259    <a href="#AttributeDefinition"><code>AttributeDefinition</code></a> node does
1260    not represent the attribute definition in <abbr>DTD</abbr> itself.  Even if
1261    there are more than one attribute definitions for an attribute of an element
1262    type in <abbr>DTD</abbr>, the result <abbr>DOM</abbr> will contain only an
1263    <a href="#AttributeDefinition"><code>AttributeDefinition</code></a> node for
1264    that attribute.</p>
1265    
1266    <p>An <a href="#AttributeDefinition"><code>AttributeDefinition</code></a>
1267    node cannot be a child of any node.  An
1268    <a href="#AttributeDefinition"><code>AttributeDefinition</code></a> node
1269    can have zero or more child nodes of same kinds as those allowed for
1270    <code>Attr</code> nodes
1271    <cite class="bibref normative">[<a href="#ref-DOM3CORE">DOM3CORE</a>]</cite>.</p>
1272    
1273    <p>The <a href="#AttributeDefinition"><code>AttributeDefinition</code></a>
1274    interface <em class=rfc2119>MUST</em> be implemented as the following
1275    <a href="#idl-fragment"><abbr>IDL</abbr> fragment</a>:</p>
1276    <pre class=idl><code>interface <dfn id=AttributeDefinition><code>AttributeDefinition</code></dfn> : <a href="#Node">Node</a> {
1277      <span class=comment>// <a href="#DeclaredValueType">DeclaredValueType</a></span>
1278      const unsigned short <a href="#NO_TYPE_ATTR">NO_TYPE_ATTR</a> = 0;
1279      const unsigned short <a href="#CDATA_ATTR">CDATA_ATTR</a> = 1;
1280      const unsigned short <a href="#ID_ATTR">ID_ATTR</a> = 2;
1281      const unsigned short <a href="#IDREF_ATTR">IDREF_ATTR</a> = 3;
1282      const unsigned short <a href="#IDREFS_ATTR">IDREFS_ATTR</a> = 4;
1283      const unsigned short <a href="#ENTITY_ATTR">ENTITY_ATTR</a> = 5;
1284      const unsigned short <a href="#ENTITIES_ATTR">ENTITIES_ATTR</a> = 6;
1285      const unsigned short <a href="#NMTOKEN_ATTR">NMTOKEN_ATTR</a> = 7;
1286      const unsigned short <a href="#NMTOKENS_ATTR">NMTOKENS_ATTR</a> = 8;
1287      const unsigned short <a href="#NOTATION_ATTR">NOTATION_ATTR</a> = 9;
1288      const unsigned short <a href="#ENUMERATION_ATTR">ENUMERATION_ATTR</a> = 10;
1289      const unsigned short <a href="#UNKNOWN_ATTR">UNKNOWN_ATTR</a> = 11;
1290    
1291      <span class=comment>// <a href="#DefaultValueType">DefaultValueType</a></span>
1292      const unsigned short <a href="#UNKNOWN_DEFAULT">UNKNOWN_DEFAULT</a> = 0;
1293      const unsigned short <a href="#FIXED_DEFAULT">FIXED_DEFAULT</a> = 1;
1294      const unsigned short <a href="#REQUIRED_DEFAULT">REQUIRED_DEFAULT</a> = 2;
1295      const unsigned short <a href="#IMPLIED_DEFAULT">IMPLIED_DEFAULT</a> = 3;
1296      const unsigned short <a href="#EXPLICIT_DEFAULT">EXPLICIT_DEFAULT</a> = 4;
1297      
1298      readonly attribute <a href="#ElementTypeDefinition">ElementTypeDefinition</a> <a href="#ownerElementTypeDefinition">ownerElementTypeDefinition</a>;
1299    
1300      readonly attribute unsigned short <a href="#declaredType">declaredType</a>;
1301      readonly attribute DOMStringList <a href="#allowedTokens">allowedTokens</a>;
1302      readonly attribute unsigned short <a href="#defaultType">defaultType</a>;
1303    }</code></pre>
1304    
1305    <dl>
1306    <dt><dfn id=ownerElementTypeDefinition class=dom-attr><code>ownerElementTypeDefinition</code></dfn>
1307    of type
1308    <a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a>,
1309    read$B!>(Bonly</dt>
1310      <dd><p>The
1311      <a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a> to
1312      which the <a href="#AttributeDefinition"><code>AttributeDefinition</code></a>
1313      node belongs.</p>
1314    
1315      <p>On getting, the attribute <em class=rfc2119>MUST</em> return an
1316      <a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a> node.
1317      It <em class=rfc2119>MUST</em> be such a node that whose
1318      <a href="#attributeDefinitons"><code>attributeDefinitions</code></a>
1319      attribute contains the <code>NamedNodeMap</code> object that contains
1320      the <a href="#AttributeDefinition"><code>AttributeDefinition</code></a>
1321      node.  If there is no such an
1322      <a href="#ElementTypeDefinition"><code>ElementTypeDefinition</code></a> node,
1323      then <code>null</code> <em class=rfc2119>MUST</em> be returned.</p>
1324    <dt><dfn id=declaredType class=dom-attr><code>declaredType</code></dfn> of type
1325    <code>unsigned short</code></dt>
1326      <dd><p>The declared type
1327      <cite class="bibref normative">[<a href="#ref-XML10">XML10</a>,
1328      <a href="#ref-XML11">XML11</a>]</cite> of the attribute.  It is expected that
1329      this attribute contains a value from the definition group
1330      <a href="#DeclaredValueType"><code>DeclaredValueType</code></a>.</p>
1331    
1332      <p>On getting, the attribute <em class=rfc2119>MUST</em> return the
1333      value associated to this attribute.</p>
1334    
1335      <p>On setting, the attribute <em class=rfc2119>MUST</em> raise a
1336      <code>NO_MODIFICATION_ALLOWED_ERR</code> if the
1337      <a href="#AttributeDefinition"><code>AttributeDefinition</code></a> node
1338      is <a href="#read-only">read$B!>(Bonly</a>.  Otherwise, it
1339      <em class=rfc2119>MUST</em> set the specified value as the value
1340      associated to this attribute.</p>
1341    
1342      <p>If the <code>AttributeDefinition</code> node is created during the process
1343      to create a <abbr>DOM</abbr> from an <abbr>XML</abbr> document, an
1344      appropriate value from the
1345      <a href="#DeclaredValueType"><code>DeclaredValueType</code></a> constant
1346      group <em class=rfc2119>MUST</em> be set to the attribute.</p>
1347    
1348      <!-- DeclaredValueType -->
1349    <p>The definition group
1350    <dfn id=DeclaredValueType><code>DeclaredValueType</code></dfn> contains
1351    integers indicating the declared type of attributes.  The definition
1352    group contains the following constants:</p>
1353    
1354    <table>
1355    <thead>
1356    <tr><th scope=col>Name<th scope=col>Value<th scope=col>Description</tr>
1357    </thead>
1358    <tbody>
1359    <tr>
1360    <th scope=row><dfn id=NO_TYPE_ATTR class=dom-const><code>NO_TYPE_ATTR</code>
1361    <td><code>0</code><td><a href="http://www.w3.org/TR/2004/REC-xml-infoset-20040204/#intro.null">No
1362    value</a>
1363    <cite class="bibref normative">[<a href="#ref-INFOSET">INFOSET</a>]</cite>.</tr>
1364    <tr>
1365    <th scope=row><dfn id=CDATA_ATTR class=dom-const><code>CDATA_ATTR</code>
1366    <td><code>1</code><td><code>CDATA</code>
1367    <cite class="bibref normative">[<a href="#ref-XML10">XML10</a>,
1368    <a href="#ref-XML11">XML11</a>]</cite>.</tr>
1369    <tr>
1370    <th scope=row><dfn id=ID_ATTR class=dom-const><code>ID_ATTR</code>
1371    <td><code>2</code><td><code>ID</code>
1372    <cite class="bibref normative">[<a href="#ref-XML10">XML10</a>,
1373    <a href="#ref-XML11">XML11</a>]</cite>.</tr>
1374    <tr>
1375    <th scope=row><dfn id=IDREF_ATTR class=dom-const><code>IDREF_ATTR</code>
1376    <td><code>3</code><td><code>IDREF</code>
1377    <cite class="bibref normative">[<a href="#ref-XML10">XML10</a>,
1378    <a href="#ref-XML11">XML11</a>]</cite>.</tr>
1379    <tr>
1380    <th scope=row><dfn id=IDREFS_ATTR class=dom-const><code>IDREFS_ATTR</code>
1381    <td><code>4</code><td><code>IDREFS</code>
1382    <cite class="bibref normative">[<a href="#ref-XML10">XML10</a>,
1383    <a href="#ref-XML11">XML11</a>]</cite>.</tr>
1384    <tr>
1385    <th scope=row><dfn id=ENTITY_ATTR class=dom-const><code>ENTITY_ATTR</code>
1386    <td><code>5</code><td><code>ENTITY</code>
1387    <cite class="bibref normative">[<a href="#ref-XML10">XML10</a>,
1388    <a href="#ref-XML11">XML11</a>]</cite>.</tr>
1389    <tr>
1390    <th scope=row><dfn id=ENTITIES_ATTR class=dom-const><code>ENTITIES_ATTR</code>
1391    <td><code>6</code><td><code>ENTITIES</code>
1392    <cite class="bibref normative">[<a href="#ref-XML10">XML10</a>,
1393    <a href="#ref-XML11">XML11</a>]</cite>.</tr>
1394    <tr>
1395    <th scope=row><dfn id=NMTOKEN_ATTR class=dom-const><code>NMTOKEN_ATTR</code>
1396    <td><code>7</code><td><code>NMTOKEN</code>
1397    <cite class="bibref normative">[<a href="#ref-XML10">XML10</a>,
1398    <a href="#ref-XML11">XML11</a>]</cite>.</tr>
1399    <tr>
1400    <th scope=row><dfn id=NMTOKENS_ATTR class=dom-const><code>NMTOKENS_ATTR</code>
1401    <td><code>8</code><td><code>NMTOKENS</code>
1402    <cite class="bibref normative">[<a href="#ref-XML10">XML10</a>,
1403    <a href="#ref-XML11">XML11</a>]</cite>.</tr>
1404    <tr>
1405    <th scope=row><dfn id=NOTATION_ATTR class=dom-const><code>NOTATION_ATTR</code>
1406    <td><code>9</code><td><code>NOTATION</code>
1407    <cite class="bibref normative">[<a href="#ref-XML10">XML10</a>,
1408    <a href="#ref-XML11">XML11</a>]</cite>.</tr>
1409    <tr>
1410    <th scope=row><dfn id=ENUMERATION_ATTR class=dom-const><code>ENUMERATION_ATTR</code>
1411    <td><code>10</code><td>Enumeration
1412    <cite class="bibref normative">[<a href="#ref-XML10">XML10</a>,
1413    <a href="#ref-XML11">XML11</a>]</cite>.</tr>
1414    <tr>
1415    <th scope=row><dfn id=UNKNOWN_ATTR class=dom-const><code>UNKNOWN_ATTR</code>
1416    <td><code>11</code><td><a href="http://www.w3.org/TR/2004/REC-xml-infoset-20040204/#intro.null">Unknown</a>,
1417    because no declaration for the attribute has been read but the
1418    <a href="http://www.w3.org/TR/2004/REC-xml-infoset-20040204/#infoitem.document">[all declaration processed]</a>
1419    property
1420    <cite class="bibref normative">[<a href="#ref-INFOSET">INFOSET</a>]</cite>
1421    would be false.</tr>
1422    </tbody>
1423    </table>
1424    
1425    <p>If no attribute type information is available, or if the source
1426    of the information does not distinguish
1427    <a href="http://www.w3.org/TR/2004/REC-xml-infoset-20040204/#intro.null">no
1428    value</a> and
1429    <a href="http://www.w3.org/TR/2004/REC-xml-infoset-20040204/#intro.null">unknown</a>
1430    <cite class="bibref normative">[<a href="#ref-INFOSET">INFOSET</a>]</cite>,
1431    then the value
1432    <a href="#NO_TYPE_ATTR"><code>NO_TYPE_ATTR</code></a>
1433    <em class=rfc2119>MUST</em> be used.</p>
1434    
1435  <div class="note memo">  <div class="note memo">
1436  <p>This character class contains all characters allowed in the production rule  <p>An <a href="#AttributeDefinition"><code>AttributeDefinition</code></a> node
1437  <a href="http://www.w3.org/TR/2006/REC-xml-20060816/#NT-PubidChar"><code>PubidChar</code></a>  created by the
1438  of <abbr>XML</abbr> 1.0  <a href="#createAttributeDefinition"><code>createAttributeDefinition</code></a>
1439  <cite class="bibref normative">[<a href="#ref-XML10">XML10</a>]</cite>.</p>  method has its <a href="#declaredType"><code>declaredType</code></a> attribute
1440    set to <a href="#NO_TYPE_ATTR"><code>NO_TYPE_ATTR</code></a>.</p>
1441    </div>
1442    
1443    <p>If the source of the information does not distinguish
1444    <a href="http://www.w3.org/TR/2004/REC-xml-infoset-20040204/#intro.null">no
1445    value</a> and/or
1446    <a href="http://www.w3.org/TR/2004/REC-xml-infoset-20040204/#intro.null">unknown</a>
1447    <cite class="bibref normative">[<a href="#ref-INFOSET">INFOSET</a>]</cite> and
1448    <code>CDATA</code>
1449    <cite class="bibref normative">[<a href="#ref-XML10">XML10</a>,
1450    <a href="#ref-XML11">XML11</a>]</cite>, then the value
1451    <a href="#CDATA_ATTR"><code>CDATA_ATTR</code></a> <em class=rfc2119>MUST</em>
1452    be used.</p>
1453    
1454    <p>In Perl binding
1455    <cite class="bibref normative">[<a href="#ref-DOMPERL">DOMPERL</a>]</cite>, the
1456    <code>Attr</code> nodes <em class=rfc2119>MUST</em> implement the
1457    <a href="#DeclaredValueType"><code>DeclaredValueType</code></a>
1458    definition group.</p>
1459    
1460      </dd>
1461    <dt><dfn id=allowedTokens class=dom-attr><code>allowedTokens</code></dfn> of
1462    type <code>DOMStringList</code>, read$B!>(Bonly</dt>
1463      <dd><p>The list of allowed attribute values.</p>
1464    
1465      <p>On getting, the attribute <em class=rfc2119>MUST</em> return the
1466      <code>DOMStringList</code> object associated to this attribute.  The object
1467      <em class=rfc2119>MAY</em> contain zero or more ordered strings, consist of
1468      zero or more characters respectively, possibly with duplications.  The
1469      object <em class=rfc2119>MUST</em> be read$B!>(Bonly if and only if the node
1470      is <a href="#read-only">read$B!>(Bonly</a>.</p>
1471    
1472      <p>If the <a href="#AttributeDefinition"><code>AttributeDefinition</code></a>
1473      node is created during the process to create a <abbr>DOM</abbr> from an
1474      <abbr>XML</abbr> document, the object <em class=rfc2119>MUST</em> contain
1475      the names or name tokens allowed for the attribute defined by the node.
1476      If the document is well$B!>(Bformed, the object will be empty unless
1477      the <a href="#declaredType"><code>declaredType</code></a> is
1478      <a href="#ENUMERATION_ATTR"><code>ENUMERATION_ATTR</code></a> or
1479      <a href="#NOTATION_ATTR"><code>NOTATION_ATTR</code></a>.</p>
1480    
1481      <p>If the <a href="#declaredType"><code>declaredType</code></a> is different
1482      from <a href="#ENUMERATION_ATTR"><code>ENUMERATION_ATTR</code></a> or
1483      <a href="#NOTATION_ATTR"><code>NOTATION_ATTR</code></a>, this attribute
1484      <em class=rfc2119>MUST</em> be ignored for the purpose of serializing
1485      into (part of) <abbr>XML</abbr> document.</p>
1486    
1487      <div class="note memo">
1488        <p>When serializing the node it should be noted that the object might
1489        be empty, might contain duplications, and might contain strings that are
1490        not names or name tokens.</p>
1491      </div></dd>
1492    <dt><dfn id=defaultType class=dom-attr><code>defaultType</code></dfn> of
1493    type <code>unsigned short</code></dt>
1494      <dd><p>The type of the default for the attribute.  It is expected that this
1495      attribute contains a value from the definition group
1496      <a href="#DefaultValueType"><code>DefaultValueType</code></a>.</p>
1497    
1498      <p>On getting, the attribute <em class=rfc2119>MUST</em> return
1499      the value associated to this attribute.</p>
1500    
1501      <p>On setting, the attribute <em class=rfc2119>MUST</em> raise a
1502      <code>NO_MODIFICATION_ALLOWED_ERR</code> if the
1503      <a href="#AttributeDefinition"><code>AttributeDefinition</code></a> node
1504      is <a href="#read-only">read$B!>(Bonly</a>.  Otherwise, it
1505      <em class=rfc2119>MUST</em> set the specified value as the value
1506      associated to this attribute.</p>
1507    
1508      <p>If the
1509      <a href="#AttributeDefinition"><code>AttributeDefinition</code></a> node is
1510      created during the process to create a <abbr>DOM</abbr> from an
1511      <abbr>XML</abbr> document, an appropriate value from the
1512      <a href="#DefaultValueType"><code>DefaultValueType</code></a> definition
1513      group <em class=rfc2119>MUST</em> be set to the attribute.</p>
1514    
1515      <!-- DefaultValueType -->
1516      <p>The definition group
1517      <dfn id=DefaultValueType><code>DefaultValueType</code></dfn>
1518      contains integers indicating the type of the default for the attribute.
1519      The definition group contains the following constans:</p>
1520    
1521      <table>
1522      <thead>
1523      <tr><th scope=col>Name<th scope=col>Value<th scope=col>Description</tr>
1524      </thead>
1525      <tbody>
1526      <tr>
1527      <th scope=row><dfn id=UNKNOWN_DEFAULT class=dom-const><code>UNKNOWN_DEFAULT</code></dfn>
1528      <td><code>0</code><td>Unknown.</tr>
1529      <tr>
1530      <th scope=row><dfn id=FIXED_DEFAULT class=dom-const><code>FIXED_DEFAULT</code></dfn>
1531      <td><code>1</code><td>Provided explicitly and only the value is allowed.
1532      <cite class="bibref normative">[<a href="#ref-XML10">XML10</a>,
1533      <a href="#ref-XML11">XML11</a>]</cite>.</tr>
1534      <tr>
1535      <th scope=row><dfn id=REQUIRED_DEFAULT class=dom-const><code>REQUIRED_DEFAULT</code></dfn>
1536      <td><code>2</code><td>No default value and the attribute have to be
1537      explicitly specified.</tr>
1538      <tr>
1539      <th scope=row><dfn id=IMPLIED_DEFAULT class=dom-const><code>IMPLIED_DEFAULT</code></dfn>
1540      <td><code>3</code><td>Implied
1541      <cite class="bibref normative">[<a href="#ref-XML10">XML10</a>,
1542      <a href="#ref-XML11">XML11</a>]</cite>.</tr>
1543      <tr>
1544      <th scope=row><dfn id=EXPLICIT_DEFAULT class=dom-const><code>EXPLICIT_DEFAULT</code></dfn>
1545      <td><code>4</code><td>Provided explicitly.</tr>
1546      </tbody>
1547      </table>
1548    
1549      <p>If the source of the default type does not distinguish
1550      implied and unknown default types, then the value
1551      <a href="#IMPLIED_DEFAULT"><code>IMPLIED_DEFAULT</code></a>
1552      <em class=rfc2119>MUST</em> be used.</p>
1553    
1554      <div class="note memo">
1555      <p>An <a href="#AttributeDefinition"><code>AttributeDefinition</code></a>
1556      node created by the
1557      <a href="#createAttributeDefinition"><code>createAttributeDefinition</code></a>
1558      method has its <a href="#defaultType"><code>defaultType</code></a>
1559      attribute set to
1560      <a href="#UNKNOWN_DEFAULT"><code>UNKNOWN_DEFAULT</code></a>.</p>
1561      </div></dd>
1562    </dl>
1563    
1564    </div>
1565    
1566    <div class=section id=section-entity>
1567    <h3>Modifications to the <code id=Entity>Entity</code> Interface</h3>
1568    
1569    <p>The implementation of the <a href="#Entity"><code>Entity</code></a>
1570    interface <em class=rfc2119>MUST</em> be modified as the following
1571    <a href="#idl-fragment"><abbr>IDL</abbr> fragment</a>:</p>
1572    <pre class=idl><code>// Modifications to the Entity interface
1573      attribute DOMString <a href="#publicId">publicId</a>;
1574      attribute DOMString <a href="#systemId">systemId</a>;
1575      attribute DOMString <a href="#notationName">notationName</a>;
1576    
1577      // Additions to the Entity interface
1578      attribute DOMString <a href="#hasReplacementTree">hasReplacementTree</a>;
1579      readonly attribute <a href="#DocumentType">DocumentType</a> <a href="#ownerDocumentTypeDefinition">ownerDocumentTypeDefinition</a>;
1580    
1581      attribute boolean <a href="#isExternallyDeclared">isExternallyDeclared</a>;
1582    </code></pre>
1583    
1584    <p>The <code id=notationName>notationName</code> attribute of the
1585    <a href="#Entity"><code>Entity</code></a> interface is no longer
1586    read$B!>(Bonly.</p>
1587    
1588    <p>On setting, the attribute <em class=rfc2119>MUST</em> raise a
1589    <code>NO_MODIFICATION_ALLOWED_ERR</code> if the node is
1590    <a href="#read-only">read$B!>(Bonly</a>.  Otherwise, it <em class=rfc2119>MUST</em>
1591    set the specified value as the value associated to the attribute.  No lexical
1592    validation is performed.  The new value <em class=rfc2119>MAY</em> be
1593    <code>null</code>.</p>
1594    
1595    <dl>
1596    <dt><dfn id=hasReplacementTree class=dom-attr><code>hasReplacementTree</code></dfn>
1597    of type boolean</dt>
1598      <dd><p>Whether the structure of the replacement text of the entity
1599      is available via the <code>NodeList</code> object in the
1600      <code>childNodes</code> attribute of the entity.</p>
1601    
1602      <p>On getting, the attribute <em class=rfc2119>MUST</em> return
1603      the value associated to this attribute.</p>
1604    
1605      <p>On setting, the attribute <em class=rfc2119>MUST</em> raise a
1606      <code>NO_MODIFICATION_ALLOWED_ERR</code> if the node is
1607      <a href="#read-only">read$B!>(Bonly</a>.  Otherwise, it
1608      <em class=rfc2119>MUST</em> set the specified value as the
1609      value associated to this attribute.</p>
1610    
1611      <div class="note memo">
1612      <p>The attribute can be set to <code>false</code> even if the
1613      <a href="#Entity"><code>Entity</code></a> node has any child node.
1614      If the attribute is set to <code>false</code>, then any child node of
1615      the <a href="#Entity"><code>Entity</code></a> node ought to be ignored,
1616      say, for the purpose of serialization.</p>
1617      </div>
1618    
1619      <p>When an <code>EntityReference</code> node is created by cloning
1620      the replacement subtree of the <a href="#Entity"><code>Entity</code></a>
1621      node, if the attribute is set to <code>false</code>, then any descendant
1622      of the node <em class=rfc2119>MUST</em> be ignored.</p>
1623    
1624      <p>If the <a href="#Entity"><code>Entity</code></a> node is created during
1625      the process to create a <abbr>DOM</abbr> from an <abbr>XML</abbr> document,
1626      the following requirements are applied:  If the entity is an unparsed
1627      entity, then the attribute <em class=rfc2119>MUST</em> be set to
1628      <code>false</code>.  Otherwise, if the entity is an external entity whose
1629      replacement text is not available, or whose replacement text is not converted
1630      to a replacement tree, then the attribute <em class=rfc2119>MUST</em> be set
1631      to <code>false</code>.  Otherwise, the attribute
1632      <em class=rfc2119>MUST</em> be set to <code>true</code>.</p>
1633    
1634      <div class="note memo">
1635      <p>An <a href="#Entity"><code>Entity</code></a> node created by the
1636      <a href="#createGeneralEntity"><code>createGeneralEntity</code></a> method
1637      has its <a href="#hasReplacementTree"><code>hasReplacementTree</code></a>
1638      attribute set to <code>false</code>.</p>
1639      </div></dd>
1640    <dt><dfn id=isExternallyDeclared class=dom-attr><code>isExternallyDeclared</code></dfn>
1641    of type boolean</dt>
1642      <dd><p>Whether the entity is declared by an external entity declaration or
1643      not.  If the value is <code>true</code>, the entity is declared in an entity
1644      declaration in the external subset entity or in an external parameter entity.
1645      If the value is <code>false</code>, the entity is declared in an entity
1646      declaration in the internal subset, or the node is created in memory.</p>
1647    
1648      <p>On getting, the attribute <em class=rfc2119>MUST</em> return
1649      the value associated to this attribute.</p>
1650    
1651      <p>On setting, the attribute <em class=rfc2119>MUST</em> raise a
1652      <code>NO_MODIFICATION_ALLOWED_ERR</code> if the node is
1653      <a href="#read-only">read$B!>(Bonly</a>.  Otherwise, it
1654      <em class=rfc2119>MUST</em> set the specified value as the value associated
1655      to this attribute.</p>
1656    
1657      <p>If the <a href="#Entity"><code>Entity</code></a> node is created during
1658      the process to create a <abbr>DOM</abbr> from an <abbr>XML</abbr> document,
1659      the following requirements are applied:  If the entity is an unparsed
1660      entity, then the attribute <em class=rfc2119>MUST</em> be set to
1661      <code>false</code>.  Otherwise, i.e. the entity is a parsed entity, then the
1662      attribute <em class=rfc2119>MUST</em> be set to the value of whether the
1663      entity is declared by an external markup declaration or not.</p></dd>
1664    </dl>
1665    </div>
1666    
1667    <div class=section id=section-notation>
1668    <h3>Modifications to the <code id=Notation>Notation</code> Interface</h3>
1669    
1670    <p>The implementation of the <a href="#Notation"><code>Notation</code></a>
1671    interface <em class=rfc2119>MUST</em> be modified as the following
1672    <a href="#idl-fragment"><abbr>IDL</abbr> fragment</a>:</p>
1673    <pre class=idl><code>// Modifications to the Notation interface
1674      attribute DOMString <a href="#publicId">publicId</a>;
1675      attribute DOMString <a href="#systemId">systemId</a>;
1676    
1677      // Addition to the Notation interface
1678      readonly attribute <a href="#DocumentType">DocumentType</a> <a href="#ownerDocumentTypeDefinition">ownerDocumentTypeDefinition</a>;
1679    </code></pre>
1680  </div>  </div>
1681    
1682  </div>  </div>
# Line 1093  of <abbr>XML</abbr> 1.0 Line 1689  of <abbr>XML</abbr> 1.0
1689    
1690  <dl>  <dl>
1691  <dt id=ref-DOM3CORE>DOM3CORE</dt>  <dt id=ref-DOM3CORE>DOM3CORE</dt>
1692    <dd class=ed>@@ W3C DOM Level 3 Core</dd>    <dd><cite><a href="http://www.w3.org/TR/2004/REC-DOM-Level-3-Core-20040407">Document
1693  <dt id=ref-DOMDTDEF>DOMDTDEF</dt>    Object Model (<abbr>DOM</abbr>) Level 3 Core Specification, Version
1694    <dd class=ed>@@ manakai's extension to DOM for document type definitions</dd>    1.0</a></cite>, <abbr>W3C</abbr> Recommendation, <time datetime=2004-04-07>7
1695      April 2004</time>.  <em>This</em> version of the specification is referenced.
1696      The latest version of the specification is available at
1697      <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>
1698    <dt id=ref-DOMBIND>DOMBIND</dt>
1699      <dd><cite><a href="http://www.w3.org/TR/2007/WD-DOM-Bindings-20071017/">Language
1700      Bindings for <abbr>DOM</abbr> Specifications</a></cite>, <abbr>W3C</abbr>
1701      Working Draft, <time datetime=2007-10-17>17 October 2007</time>.  
1702      <em>This</em> version of the specification is referenced.  The latest version
1703      of the specification is available at
1704      <code class=uri>&lt;<a href="http://www.w3.org/TR/DOM-Bindings/">http://www.w3.org/TR/DOM-Bindings/</a>></code>.</dd>
1705    <dt id=ref-DOMPERL>DOMPERL</dt>
1706      <dd><cite><a href="http://suika.fam.cx/gate/2005/sw/manakai/DOM%20Perl%20Binding">manakai's
1707      <abbr>DOM</abbr> Perl Binding</a></cite>, editor's draft.  Work in
1708      progress.</dd>
1709    <dt id=ref-HTML5>HTML5</dt>
1710      <dd><cite><a href="http://whatwg.org/html5"><abbr>HTML</abbr> 5</a></cite>,
1711      <abbr title="Web Hypertext Application Technology Working Group">WHATWG</abbr>
1712      Working Draft.  Work in progress.</dd>
1713    <dt id=ref-INFOSET>INFOSET</dt>
1714      <dd><cite><a href="http://www.w3.org/TR/2004/REC-xml-infoset-20040204"><abbr>XML</abbr>
1715      Information Set (Second Edition)</a></cite>, <abbr>W3C</abbr> Recommendation,
1716      <time datetime=2004-02-04>4 February 2004</time>.  <em>This</em> version of
1717      the specification is referenced.  The latest version of the specification is
1718      available at
1719      <code class=uri>&lt;<a href="http://www.w3.org/TR/xml-infoset">http://www.w3.org/TR/xml-infoset</a>></code>.</dd>
1720  <dt id="ref-KEYWORDS">KEYWORDS</dt>  <dt id="ref-KEYWORDS">KEYWORDS</dt>
1721    <dd><cite><a href="urn:ietf:rfc:2119">Key words for use in    <dd><cite><a href="urn:ietf:rfc:2119">Key words for use in
1722    <abbr>RFCs</abbr> to Indicate Requirement Levels</a></cite>,    <abbr>RFCs</abbr> to Indicate Requirement Levels</a></cite>,
# Line 1104  of <abbr>XML</abbr> 1.0 Line 1725  of <abbr>XML</abbr> 1.0
1725    14</a>, <abbr title="Request for Comments">RFC</abbr> 2119,    14</a>, <abbr title="Request for Comments">RFC</abbr> 2119,
1726    <time datetime=1997-03>March 1997</time>.    <time datetime=1997-03>March 1997</time>.
1727    <em>This</em> version of the specification is referenced.</dd>    <em>This</em> version of the specification is referenced.</dd>
 <dt id=ref-INFOSET>INFOSET</dt>  
   <dd class=ed>@@</dd>  
1728  <dt id=ref-XML10">XML10</dt>  <dt id=ref-XML10">XML10</dt>
1729    <dd><cite><a href="http://www.w3.org/TR/2006/REC-xml-20060816">Extensible    <dd><cite><a href="http://www.w3.org/TR/2006/REC-xml-20060816">Extensible
1730    Markup Language (<abbr>XML</abbr>) 1.0 (Fourth Edition)</a></cite>,    Markup Language (<abbr>XML</abbr>) 1.0 (Fourth Edition)</a></cite>,
1731    <abbr>W3C</abbr> Recommendation, <time datetime=2006-08-16>16 August    <abbr>W3C</abbr> Recommendation, <time datetime=2006-08-16>16 August
1732    2006</time>, edited in place <time datetime=2006-09-29>29 September    2006</time>, edited in place <time datetime=2006-09-29>29 September
1733    2006</time>.  Tje latest version of the specification is available at    2006</time>.  <em>This</em> version of the specification is referenced.  The
1734    <code class=uri>&lt;<a href="http://www.w3.org/TR/xml">http://www.w3.org/TR/xml</a>&gt;</code>.    latest version of the specification is available at
1735    <em>This</em> version of the specification is referenced.</dd>    <code class=uri>&lt;<a href="http://www.w3.org/TR/xml">http://www.w3.org/TR/xml</a>&gt;</code>.</dd>
1736  <dt id=ref-XML11>XML11</dt>  <dt id=ref-XML11>XML11</dt>
1737    <dd class=ed>@@</dd>    <dd><cite><a href="http://www.w3.org/TR/2006/REC-xml11-20060816/">Extensible
1738      Markup Language (<abbr>XML</abbr>) 1.1 (Second Edition)</a></cite>,
1739      <abbr>W3C</abbr> Recommendation, <time datetime=2006-08-16>16 August
1740      2006</time>, edited in place <time datetime=2006-09-29>29 September
1741      2006</time>.  <em>This</em> version of the specification is referenced.  The
1742      latest version of the specification is available at
1743      <code class=uri>&lt;<a href="http://www.w3.org/TR/xml11">http://www.w3.org/TR/xml11</a>></code>.</dd>
1744  </dl>  </dl>
1745  </div>  </div>
1746    
1747  <div id="informative-references" class="section informative reference">  <div id="informative-references" class="section informative reference">
1748  <h3>Non$B!>(Bnormative References</h3>  <h3>Non$B!>(Bnormative References</h3>
1749    
1750  <dl class=ed>  <dl>
1751  <dt id=ref-CSS>CSS</dt>  <dt id=ref-DOM1WD>DOM1WD</dt>
1752    <dd><cite><a href="http://www.w3.org/TR/2007/CR-CSS21-20070719">Cascading    <dd><cite><a href="http://www.w3.org/TR/WD-DOM-971209/">Document Object
1753    Style Sheets Level 2 Revision 1 (<abbr>CSS</abbr> 2.1)    Model Specification</a></cite>, <abbr>W3C</abbr> Working Draft,
1754    Specification</a></cite>,    <time datetime=1997-12-09>9 December 1998</time>.</dd>
1755    <abbr title="World Wide Web Consortium">W3C</abbr> Candidate    <dd><cite><a href="http://www.w3.org/TR/WD-DOM-19980318/">Document Object
1756    Recommendation, <time datetime=2007-07-19>19 July 2007</time>.    Model Specification</a></cite>, <abbr>W3C</abbr> Working Draft,
1757    Work in progress.  The latest version of the specification is    <time datetime=1998-03-18>18 March 1998</time>.</dd>
1758    available at    <dd><cite><a href="http://www.w3.org/TR/1998/WD-DOM-19980416/">Document
1759    <code class=URI>&lt;<a href="http://www.w3.org/TR/CSS21">http://www.w3.org/TR/CSS21</a>></code>.</dd>    Object Model Specification, Version 1.0</a></cite>, <abbr>W3C</abbr> Working
1760  <dt id=ref-CSSOM>CSSOM</dt>    Draft, <time datetime=1998-04-16>16 April 1998</time>.</dd>
1761    <dd><cite><a href="http://dev.w3.org/cvsweb/~checkout~/csswg/cssom/Overview.html?rev=1.55&amp;content-type=text/html;%20charset=utf-8">Cascading  <dt id=ref-DOM3AS>DOM3AS</dt>
1762    Style Sheets Object Model (<abbr>CSSOM</abbr>)</a></cite>,    <dd><cite><a href="http://www.w3.org/TR/2002/NOTE-DOM-Level-3-AS-20020725/">Document
1763    <abbr title="World Wide Web Consortium">W3C</abbr> Editor's Draft,    Object Model (<abbr>DOM</abbr>) Level 3 Abstract Schemas Specification,
1764    <time datetime=2007-06-18>18 June 2007</time>.  Work in progress.    Version 1.0</a></cite>, <abbr>W3C</abbr> Note, <time datetime=2002-07-25>25
1765    The latest Editor's Draft of the specification is available at    July 2002</time>.  The latest version of the specification is available at
1766    <code class=URI>&lt;<a href="http://dev.w3.org/csswg/cssom/Overview.html">http://dev.w3.org/csswg/cssom/Overview.html</a>></code>.</dd>    <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>
1767  <dt id=ref-HTML5>HTML5</dt>  <dt id=ref-XSAPI>XSAPI</dt>
1768    <dd><cite><a href="http://whatwg.org/html5"><abbr>HTML</abbr> 5</a></cite>,    <dd><cite><a href="http://www.w3.org/Submission/2004/SUBM-xmlschema-api-20040309/"><abbr>XML</abbr>
1769    <abbr title="Web Hypertext Application Technology Working Group">WHATWG</abbr>    Schema <abbr>API</abbr></a></cite>, <abbr>W3C</abbr> Member Submission,
1770    Working Draft.  Work in progress.</dd>    <time datetime=2004-03-09>9 March 2004</time>.  The latest version of the
1771  <dt id=ref-SAPI>SAPI</dt>    specification is available at
1772    <dd><cite><a href="http://dev.w3.org/cvsweb/~checkout~/2006/webapi/selectors-api/Overview.html?rev=1.28&amp;content-type=text/html;%20charset=utf-8">Selectors <abbr>API</abbr></a></cite>,    <code class=uri>&lt;<a href="http://www.w3.org/Submission/xmlschema-api/">http://www.w3.org/Submission/xmlschema-api/</a>></code>.</dd>
   <abbr title="World Wide Web Consortium">W3C</abbr> Editor's Draft,  
   <time datetime=2007-08-29>29 August 2007</time>.  Work in progress.  
   The latest Editor's Draft of the specification is available at  
   <code class=URI>&lt;<a href="http://dev.w3.org/2006/webapi/selectors-api/Overview.html">http://dev.w3.org/2006/webapi/selectors-api/Overview.html</a>></code>.  
   The latest published version of the specification is available at  
   <code class=URI>&lt;<a href="http://www.w3.org/TR/selectors-api/">http://www.w3.org/TR/selectors-api/</a>></code>.</dd>  
 <dt id=XBL2>XBL2</dt>  
   <dd><cite><a href="http://www.mozilla.org/projects/xbl/xbl2.html"><abbr>XBL</abbr>  
   2.0</a></cite>, Mozilla.org, <time datetime=2007-03-15>15 Mar 2007</time>.  
   Work in progress.  The latest  
   <abbr title="World Wide Web Consortium">W3C</abbr>$B!>(Bpublished  
   version of the specification is available at  
   <code class=URI>&lt;<a href="http://www.w3.org/TR/xbl/">http://www.w3.org/TR/xbl/</a>></code>.</dd>  
 <dt id=ref-XML5>XML5</dt>  
   <dd class=ed>@@</dd>  
1773  </dl>  </dl>
1774  </div>  </div>
1775    
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