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4  <title>manakai's XML Conformance Checking</title>  <title>manakai's XML Conformance Checking</title>
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16  </head>  </head>
17  <body class="has-abstract">  <body class="has-abstract">
18    
19  <div class="header">  <div class="header">
20  <h1>manakai's XML Conformance Checking</h1>  <h1>manakai's XML Conformance Checking</h1>
21  <h2>Working Draft <time datetime=2007-11-12>12 November 2007</time></h2>  <h2>Working Draft <time datetime=2007-11-13>13 November 2007</time></h2>
22    
23  <dl class="versions-uri">  <dl class="versions-uri">
24  <dt>This Version</dt>  <dt>This Version</dt>
# Line 111  In addition, the order in which <a href= Line 120  In addition, the order in which <a href=
120  raised is undefined.</p>  raised is undefined.</p>
121  </div>  </div>
122    
123  <div class="section">  <div class="section" id=checking-dom>
124  <h2 class=ed>Algorithms</h2>  <h2>Checking <abbr>DOM</abbr></h2>
125    
126  <p>The following algorithms and definitions are applied to  <p>The following algorithms and definitions are applied to
127  <abbr>XML</abbr> documents; especially, they are not applied  <abbr>XML</abbr> documents; especially, they are not applied
128  to <abbr>HTML</abbr> documents.<!-- TODO: ref to HTML5 --></p>  to <abbr>HTML</abbr> documents.<!-- TODO: ref to HTML5 --></p>
129    
130    <div class=section id=error-categories>
131    <h3>Error Classification</h3>
132    
133  <p class=ed>If a <code>Document</code> node has no  <p class=ed>If a <code>Document</code> node has no
134  xml-well-formedness-error, entity-error, and unknown-error,  xml-well-formedness-error, entity-error, and unknown-error,
135  then it is well-formed.  If a well-formed <code>Document</code>  then it is well-formed.  If a well-formed <code>Document</code>
# Line 182  can be easily serialized into a valid XM Line 194  can be easily serialized into a valid XM
194  (MAY or MUST), #dt-compat for compatibility,  (MAY or MUST), #dt-compat for compatibility,
195  #dt-interop for interoperability</p></div>  #dt-interop for interoperability</p></div>
196    
197    </div>
198    
199    <div class=section id=definitions>
200    <h3>Definitions</h3>
201    
202  <p>The <dfn id=xml-version><abbr>XML</abbr> version</dfn> of a node is  <p>The <dfn id=xml-version><abbr>XML</abbr> version</dfn> of a node is
203  the <abbr>XML</abbr> version of the document to which the node belongs.  the <abbr>XML</abbr> version of the document to which the node belongs.
204  For a <code>Documemt</code> node, the <abbr>XML</abbr> version  For a <code>Documemt</code> node, the <abbr>XML</abbr> version
205  of the document is the value of the <code>xmlVersion</code>  of the document is the value of the <code>xmlVersion</code>
206  attribute.  For a <code>DocumentType</code> node whose  attribute of the node.  For a <code>DocumentType</code> node whose
207  <code>ownerDocument</code> is set to <code>null</code>,  <code>ownerDocument</code> attribute is set to <code>null</code>,
208  the <abbr>XML</abbr> version of the document is <code>1.0</code>.  the <abbr>XML</abbr> version of the document is <code>1.0</code><!--
209    since createDocumentType [DOM3CORE] assumes XML 1.0 [XML10TE] -->.
210  For any other node, the <abbr>XML</abbr> version of the document  For any other node, the <abbr>XML</abbr> version of the document
211  is that of the <code>Document</code> node contained in the  is that of the <code>Document</code> node contained in the
212  <code>ownerDocument</code> attribute of the node.</p>  <code>ownerDocument</code> attribute of the node.</p>
213    
214    </div>
215    
216    
217    <div class=section id=checking-components>
218    <h3>Checking Components</h3>
219    
220    <p>The algorithm
221    <dfn id=algorithm-to-validate-an-xml-character-data title-"to validate an XML character data">to
222    validate an <abbr>XML</abbr> character data
223    (<dfn id=var-s><var>s</var></dfn>)</dfn> is defined as following:</p>
224    <ol>
225    <li class=ed>@@</li>
226    </ol>
227    
228    <p>The algorithm
229    <dfn id=algorithm-to-validate-a-name title="to validate a Name">to validate a
230    <code>Name</code> (<dfn id=var-name><var>name</var></dfn>)</dfn> is defined
231    as following:</p>
232    <ol>
233    <li class=ed>@@</li>
234    </ol>
235    
236    <p>The algorithm
237    <dfn id=algorithm-to-validate-a-ncname title="to validate an NCName">to
238    validate an <code>NCName</code> (<dfn id=var-name><var>name</var></dfn>)</dfn>
239    is defined as following:</p>
240    <ol>
241    <li class=ed>@@</li>
242    </ol>
243    
244    <p>To <dfn id=algorithm-to-validate-a-public-identifier title="validate a public identifier">validate
245    a public identifier (<dfn id=var-pid><var>pid</var></dfn>)</dfn>, the
246    algorithm below <em class=rfc2119>MUST</em> be used:</p>
247    <ol>
248      <li>If <var>pid</var> contains any character
249      that is outside of the range of <code>#x20 | #xD | #xA |
250      [a-zA-Z0-9] | [-'()+,./:=?;!*#@$_%]</code><!-- @@ TODO: formal def -->,
251      then it is an
252      <a href="#xml-well-formedness-error" id=wfe-pubid-char><code>xml-well-formedness-error</code></a>.</li>
253      <li>If <var>pid</var> contains one of <code class=char>U+0009</code>
254      <code class=charname>CHARACTER TABULATION</code>,
255      <code class=char>U+000A</code> <code class=charname>CARRIAGE RETURN</code>,
256      and <code class=char>U+000D</code> <code class=charname>LINE FEED</code>
257      characters, if the first character of <var>pid</var> is
258      <code class=char>U+0020</code> <code class=charname>SPACE</code> character,
259      if the last character of <var>pid</var> is <code class=char>U+0020</code>
260      <code class=charname>SPACE</code> character, or if there is a
261      <code class=char>U+0020</code> <code class=charname>SPACE</code> character
262      immediately followed by another <code class=char>U+0020</code>
263      <code class=charname>SPACE</code> character in <var>pid</var>, then it is a
264      <a href="#round-trip-error" id=rte-pubid-space><code>round-trip-error</code></a>.</li>
265      <li class=ed>@@ Should we check formal-public-identifierness?</li>
266    </ol>
267    
268    </div>
269    
270    <div class=section id=checking-node>
271    <h3>Checking <code>Node</code></h3>
272    
273  <p>The algorithm <dfn title="to check a node" id=algorithm-to-check-a-node>to  <p>The algorithm <dfn title="to check a node" id=algorithm-to-check-a-node>to
274  check a node (<dfn id=var-n><var>n</var></dfn>)</dfn> is defined as  check a node (<dfn id=var-n><var>n</var></dfn>)</dfn> is defined as
275  following:</p>  following:</p>
# Line 205  following:</p> Line 282  following:</p>
282      <li>If the <code>prefix</code> attribute value is different from      <li>If the <code>prefix</code> attribute value is different from
283      <code>null</code>, then <a href="#algorithm-to-validate-a-ncname">validate      <code>null</code>, then <a href="#algorithm-to-validate-a-ncname">validate
284      the <code>prefix</code> attribute value as an <code>NCName</code></a>.</li>      the <code>prefix</code> attribute value as an <code>NCName</code></a>.</li>
285      <li>If the <code>childNodes</code> list of <var>n</var> contains      <li>For each node <dfn id=var-attr-nc><var>n<sub><var>c</var></sub></var></dfn> in the
     a node which is <em>not</em> <code>Text</code> or  
     <code>EntityReference</code> node, then it is a  
     <a href="#xml-well-formedness-error" id=wfe-attr-child><code>xml-well-formedness-error</code></a>.</li>  
     <li>If the <code>childNodes</code> list of <var>n</var> contains  
     an <code>EntityReference</code> node, it is an  
     <a href="#entity-error" id=ee-er-in-attr><code>entity-error</code></a>.</li>  
     <li><a href="#algorithm-to-check-a-node">Check each node</a>, in  
286      <code>childNodes</code> list of <var>n</var>,      <code>childNodes</code> list of <var>n</var>,
287      which is different from <code>EntityReference</code> recursively.</li>        <ol>
288          <li>If <var>n<sub><var>c</var></sub></var> is <em>not</em> a
289          <code>Text</code> or <code>EntityReference</code> node, then it is an
290          <a href="#xml-well-formedness-error" id=wfe-attr-child><code>xml-well-formedness-error</code></a>.</li>
291          <li>Otherwise, if <var>n<sub><var>c</var></sub></var> is an
292          <code>EntityReference</code> node, then it is an
293          <a href="#entity-error" id=ee-attr-er><code>entity-error</code></a>.</li>
294          <li>Otherwise,
295          <a href="#algorithm-to-check-a-node" title="check a node">check
296          <var>n<sub><var>c</var></sub></var></a> recusrively.</li>
297          </ol></li>
298      <li class=ed>@@ <code>specified</code>,      <li class=ed>@@ <code>specified</code>,
299      <code>manakaiAttributeType</code></li>      <code>manakaiAttributeType</code></li>
300      </ol>      </ol>
301    </dd>    </dd>
302  <dt>If <var>n</var> is an <code>AttributeDefinition</code> node</dt>  <dt>If <var>n</var> is an <code>AttributeDefinition</code> node</dt>
303    <dd class=ed></dd>    <dd>
304        <ol>
305        <li class=ed></li>
306        <li>For each node <dfn id=var-ad-nc><var>n<sub><var>c</var></sub></var></dfn> in the
307        <code>childNodes</code> list of <var>n</var>,
308          <ol>
309          <li>If <var>n<sub><var>c</var></sub></var> is <em>not</em> a
310          <code>Text</code> or <code>EntityReference</code> node, then it is an
311          <a href="#xml-well-formedness-error" id=wfe-at-child><code>xml-well-formedness-error</code></a>.</li>
312          <li>Otherwise, if <var>n<sub><var>c</var></sub></var> is an
313          <code>EntityReference</code> node, then it is an
314          <a href="#entity-error" id=ee-at-er><code>entity-error</code></a>.</li>
315          <li>Otherwise,
316          <a href="#algorithm-to-check-a-node" title="check a node">check
317          <var>n<sub><var>c</var></sub></var></a> recusrively.</li>
318          </ol></li>
319        </ol>
320      </dd>
321  <dt>If <var>n</var> is a <code>CDATASection</code> node</dt>  <dt>If <var>n</var> is a <code>CDATASection</code> node</dt>
322    <dd>    <dd>
323      <ol>      <ol>
# Line 228  following:</p> Line 325  following:</p>
325      <code>data</code> attribute value as an <abbr>XML</abbr> character      <code>data</code> attribute value as an <abbr>XML</abbr> character
326      data</a>.</li>      data</a>.</li>
327      <li>If the <code>data</code> attribute value contains      <li>If the <code>data</code> attribute value contains
328      a string <code>]]></code>, then it is a      a string <code>]]></code>, then it is an
329      <a href="#xml-well-formedness-error" id=wfe-cs-mse><code>xml-well-formedness-error</code></a>.</li>      <a href="#xml-well-formedness-error" id=wfe-cs-mse><code>xml-well-formedness-error</code></a>.</li>
330      <li>If the <code>childNodes</code> list of <var>n</var> contains      <li>If the <code>childNodes</code> list of <var>n</var> contains
331      any nodes, they are in      any nodes, they are in
332      <a href="#xml-well-formedness-error" id=wfe-cs-child><code>xml-well-formedness-error</code></a>s.</li>      <a href="#xml-well-formedness-error" id=wfe-cs-child><code>xml-well-formedness-error</code></a>.</li>
333      </ol>      </ol>
334    </dd>    </dd>
335  <dt>If <var>n</var> is a <code>Comment</code> node</dt>  <dt>If <var>n</var> is a <code>Comment</code> node</dt>
# Line 243  following:</p> Line 340  following:</p>
340      data</a>.</li>      data</a>.</li>
341      <li>If the <code>data</code> attribute value contains      <li>If the <code>data</code> attribute value contains
342      a string <code>--</code>, or if it ends with a character      a string <code>--</code>, or if it ends with a character
343      <code>-</code>, then it is a      <code>-</code>, then it is an
344      <a href="#xml-well-formedness-error" id=wfe-comment-com><code>xml-well-formedness-error</code></a>.</li>      <a href="#xml-well-formedness-error" id=wfe-comment-com><code>xml-well-formedness-error</code></a>.</li>
345      <li>If the <code>childNodes</code> list of <var>n</var> contains      <li>If the <code>childNodes</code> list of <var>n</var> contains
346      any nodes, they are in      any nodes, they are in
347      <a href="#xml-well-formedness-error" id=wfe-comment-child><code>xml-well-formedness-error</code></a>s.</li>      <a href="#xml-well-formedness-error" id=wfe-comment-child><code>xml-well-formedness-error</code></a>.</li>
348      </ol>      </ol>
349    </dd>    </dd>
350  <dt>If <var>n</var> is a <code>Document</code> node</dt>  <dt>If <var>n</var> is a <code>Document</code> node</dt>
# Line 258  following:</p> Line 355  following:</p>
355      then it is an <code class=ed>unknown-error?</code>.</li>      then it is an <code class=ed>unknown-error?</code>.</li>
356      <li>If the <code>xmlEncoding</code> attribute value does <em>not</em>      <li>If the <code>xmlEncoding</code> attribute value does <em>not</em>
357      match to <code>[A-Za-z] ([A-Za-z0-9._] | '-')*</code>      match to <code>[A-Za-z] ([A-Za-z0-9._] | '-')*</code>
358      <span class=ed>@@ formal def</span>, then it is a      <span class=ed>@@ formal def</span>, then it is an
359      <a href="#xml-well-formedness-error" id=wfe-encoding><code>xml-well-formedness-error</code></a>.</li>      <a href="#xml-well-formedness-error" id=wfe-encoding><code>xml-well-formedness-error</code></a>.</li>
360      <li>The <code>childNodes</code> list of <var>n</var> have to      <li>The <code>childNodes</code> list of <var>n</var> have to
361      consist of zero or more <code>Comment</code> and/or      consist of zero or more <code>Comment</code> and/or
# Line 268  following:</p> Line 365  following:</p>
365      <code>ProcessingInstruction</code> nodes, followed by      <code>ProcessingInstruction</code> nodes, followed by
366      an <code>Element</code> node, followed      an <code>Element</code> node, followed
367      by zero or more <code>Comment</code> and/or      by zero or more <code>Comment</code> and/or
368      <code>ProcessingInstruction</code> nodes.  Any violation to this is a      <code>ProcessingInstruction</code> nodes.  Any violation to this is an
369      <a href="#xml-well-formedness-error" id=wfe-document-child><code>xml-well-formedness-error</code></a>.</li>      <a href="#xml-well-formedness-error" id=wfe-document-child><code>xml-well-formedness-error</code></a>.</li>
370      <li><a href="#algorithm-to-check-a-node">Check each node</a>, in      <li>For each node <dfn id=var-document-nc><var>n<sub><var>c</var></sub></var></dfn>
371      <code>childNodes</code> list of <var>n</var>,      in the <code>childNodes</code> list of <var>n</var>,
372      which is different from <code>EntityReference</code> recursively.</li>        <ol>
373          <li>If <var>n<sub><var>c</var></sub></var> is <em>not</em> an
374          <code>EntityReference</code> node, then
375          <a href="#algorithm-to-check-a-node" title="check a node">check
376          <var>n<sub><var>c</var></sub></var></a> recursively.</li>
377          </ol></li>
378      <li class=ed>@@ <code>allDeclarationsProcessed</code></li>      <li class=ed>@@ <code>allDeclarationsProcessed</code></li>
379      </ol>      </ol>
380    </dd>    </dd>
381  <dt>If <var>n</var> is a <code>DocumentFragment</code> node</dt>  <dt>If <var>n</var> is a <code>DocumentFragment</code> node</dt>
382    <dd>    <dd>
383      <ol>      <ol>
384      <li>If the <code>childNodes</code> list of <var>n</var> contains      <li>For each node <dfn id=var-df-nc><var>n<sub><var>c</var></sub></var></dfn>
385      a node which is <em>not</em> <code>Element</code>,      in the <code>childNodes</code> list of <var>n</var>,
386      <code>Text</code>, <code>CDATASection</code>, <code>Comment</code>,        <ol>
387      <code>ProcessingInstruction</code>, or        <li>If <var>n<sub><var>c</var></sub></var> is <em>not</em> an
388      <code>EntityReference</code> node, then it is a        <code>Element</code>, <code>Text</code>, <code>CDATASection</code>,
389      <a href="#xml-well-formedness-error" id=wfe-df-child><code>xml-well-formedness-error</code></a>.</li>        <code>Comment</code>, <code>ProcessingInstruction</code>, or
390      <li>If the <code>childNodes</code> list of <var>n</var> contains        <code>EntityReference</code> node, then it is an
391      an <code>EntityReference</code> node, it is an        <a href="#xml-well-formedness-error" id=wfe-df-child><code>xml-well-formedness-error</code></a>.</li>
392      <a href="#entity-error" id=ee-er-in-df><code>entity-error</code></a>.</li>        <li>Otherwise, if <var>n<sub><var>c</var></sub></var> is an
393      <li><a href="#algorithm-to-check-a-node">Check each node</a>, in        <code>EntityReference</code> node, then it is an
394      <code>childNodes</code> list of <var>n</var>        <a href="#entity-error" id=ee-df-er><code>entity-error</code></a>.</li>
395      which is different from <code>EntityReference</code> recursively.</li>        <li>Otherwise,
396          <a href="#algorithm-to-check-a-node" title="check a node">check
397          <var>n<sub><var>c</var></sub></var></a> recursively.</li>
398          </ol></li>
399      </ol>      </ol>
400    </dd>    </dd>
401  <dt>If <var>n</var> is a <code>DocumentType</code> node</dt>  <dt>If <var>n</var> is a <code>DocumentType</code> node</dt>
# Line 304  following:</p> Line 409  following:</p>
409      both <code>"</code> and <code>'</code> characters, it is a      both <code>"</code> and <code>'</code> characters, it is a
410      <a href="#xml-well-formedness-error" id=wfe-dt-system-id><code>xml-well-formedness-error</code></a>.</li>      <a href="#xml-well-formedness-error" id=wfe-dt-system-id><code>xml-well-formedness-error</code></a>.</li>
411      <!-- publicId = non-null and systemId = null -->      <!-- publicId = non-null and systemId = null -->
412      <li>If the <code>childNodes</code> list of <var>n</var> contains      <li>For each node <dfn id=var-dt-nc><var>n<sub><var>c</var></sub></var></dfn>
413      a node which is <em>not</em> <code>ProcessingInstruction</code> node,      in the <code>childNodes</code> list of <var>n</var>,
414      then it is a        <ol>
415      <a href="#xml-well-formedness-error" id=wfe-dt-child><code>xml-well-formedness-error</code></a>.        <li>If <var>n<sub><var>c</var></sub></var> is <em>not</em> a
416      <span class=ed>@@ ref to manakai's extensions</span></li>        <code>ProcessingInstruction</code> node, then it is an
417      <li><a href="#algorithm-to-check-a-node">Check each node</a>, in        <a href="#xml-well-formedness-error" id=wfe-dt-child><code>xml-well-formedness-error</code></a>.
418      <code>childNodes</code> list of <var>n</var>,        <span class=ed>@@ ref to manakai's extensions</span></li>
419      which is different from <code>EntityReference</code> recursively.</li>        <li>Otherwise, <!-- if n_c is not an EntityReference node, -->
420          <a href="#algorithm-to-check-a-node" title="check a node">check
421          <var>n<sub><var>c</var></sub></var></a> recusrively.</li>
422          </ol></li>
423      <li class=ed>@@ <code>entities</code>, <code>notations</code>,      <li class=ed>@@ <code>entities</code>, <code>notations</code>,
424      <code>elementTypes</code>, externally declared?</li>      <code>elementTypes</code>, externally declared?</li>
425      </ol>      </ol>
# Line 324  following:</p> Line 432  following:</p>
432      <li>If the <code>prefix</code> attribute value is different from      <li>If the <code>prefix</code> attribute value is different from
433      <code>null</code>, then <a href="#algorithm-to-validate-a-ncname">validate      <code>null</code>, then <a href="#algorithm-to-validate-a-ncname">validate
434      the <code>prefix</code> attribute value as an <code>NCName</code></a>.</li>      the <code>prefix</code> attribute value as an <code>NCName</code></a>.</li>
435      <li>If the <code>childNodes</code> list of <var>n</var> contains      <li>For each node <dfn id=var-element-nc><var>n<sub><var>c</var></sub></var></dfn>
436      a node which is <em>not</em> <code>Element</code>,      in the <code>childNodes</code> list of <var>n</var>,
437      <code>Text</code>, <code>CDATASection</code>, <code>Comment</code>,        <ol>
438      <code>ProcessingInstruction</code>, or        <li>If <var>n<sub><var>c</var></sub></var> is <em>not</em> an
439      <code>EntityReference</code> node, then it is a        <code>Element</code>,
440      <a href="#xml-well-formedness-error" id=wfe-element-child><code>xml-well-formedness-error</code></a>.</li>        <code>Text</code>, <code>CDATASection</code>, <code>Comment</code>,
441      <li>If the <code>childNodes</code> list of <var>n</var> contains        <code>ProcessingInstruction</code>, or
442      an <code>EntityReference</code> node, it is an        <code>EntityReference</code> node, then it is an
443      <a href="#entity-error" id=ee-er-in-element><code>entity-error</code></a>.</li>        <a href="#xml-well-formedness-error" id=wfe-element-child><code>xml-well-formedness-error</code></a>.</li>
444      <li><a href="#algorithm-to-check-a-node">Check each node</a>, in        <li>Otherwise, if <var>n<sub><var>c</var></sub></var> is an
445      <code>childNodes</code> list of <var>n</var>,        <code>EntityReference</code> node, then it is an
446      which is different from <code>EntityReference</code> recursively.</li>        <a href="#entity-error" id=ee-element-er><code>entity-error</code></a>.</li>
447          <li>Otherwise,
448          <a href="#algorithm-to-check-a-node" title="check a node">check
449          <var>n<sub><var>c</var></sub></var></a> recursively.</li>
450          </ol></li>
451      </ol>      </ol>
452    </dd>    </dd>
453  <dt>If <var>n</var> is an <code>ElementTypeDefinition</code> node</dt>  <dt>If <var>n</var> is an <code>ElementTypeDefinition</code> node</dt>
454    <dd class=ed></dd>    <dd>
455        <ol>
456        <li class=ed></li>
457        <li>If the <code>childNodes</code> list of <var>n</var> contains
458        any nodes, they are in
459        <a href="#xml-well-formedness-error" id=wfe-et-child><code>xml-well-formedness-error</code></a>.</li>
460        </ol>
461      </dd>
462  <dt>If <var>n</var> is an <code>Entity</code> node</dt>  <dt>If <var>n</var> is an <code>Entity</code> node</dt>
463    <dd>    <dd>
464      <ol>      <ol>
# Line 353  following:</p> Line 472  following:</p>
472      <a href="#xml-well-formedness-error" id=wfe-dt-system-id><code>xml-well-formedness-error</code></a>.</li>      <a href="#xml-well-formedness-error" id=wfe-dt-system-id><code>xml-well-formedness-error</code></a>.</li>
473      <!-- publicId = non-null and systemId = null -->      <!-- publicId = non-null and systemId = null -->
474      <li class=ed>@@ <code>notationName</code></li>      <li class=ed>@@ <code>notationName</code></li>
475      <li>If the <code>childNodes</code> list of <var>n</var> contains      <li>For each node <dfn id=var-entity-nc><var>n<sub><var>c</var></sub></var></dfn>
476      a node which is <em>not</em> <code>Element</code>,      in the <code>childNodes</code> list of <var>n</var>,
477      <code>Text</code>, <code>CDATASection</code>, <code>Comment</code>,        <ol>
478      <code>ProcessingInstruction</code>, or        <li>If <var>n<sub><var>c</var></sub></var> is <em>not</em> an
479      <code>EntityReference</code> node, then it is a        <code>Element</code>,
480      <a href="#xml-well-formedness-error" id=wfe-entity-child><code>xml-well-formedness-error</code></a>.</li>        <code>Text</code>, <code>CDATASection</code>, <code>Comment</code>,
481      <li>If the <code>childNodes</code> list of <var>n</var> contains        <code>ProcessingInstruction</code>, or <code>EntityReference</code>
482      an <code>EntityReference</code> node, it is an        node, then it is an
483      <a href="#entity-error" id=ee-er-in-er><code>entity-error</code></a>.</li>        <a href="#xml-well-formedness-error" id=wfe-entity-child><code>xml-well-formedness-error</code></a>.</li>
484      <li><a href="#algorithm-to-check-a-node">Check each node</a>, in        <li>Otherwise, if <var>n<sub><var>c</var></sub></var> is an
485      <code>childNodes</code> list of <var>n</var>,        <code>EntityReference</code> node, then it is an
486      which is different from <code>EntityReference</code> recursively.</li>        <a href="#entity-error" id=ee-er-er><code>entity-error</code></a>.</li>
487          <li>Otherwise,
488          <a href="#algorithm-to-check-a-node" title="check a node">check
489          <var>n<sub><var>c</var></sub></var></a> recursively.</li>
490          </ol></li>
491      </ol>      </ol>
492    </dd>    </dd>
493  <dt>If <var>n</var> is an <code>EntityReference</code> node</dt>  <dt>If <var>n</var> is an <code>EntityReference</code> node</dt>
# Line 373  following:</p> Line 496  following:</p>
496      <li>An <a href="#entity-error" id=ee-er-node><code>entity-error</code></a>.</li>      <li>An <a href="#entity-error" id=ee-er-node><code>entity-error</code></a>.</li>
497      <li><a href="#algorithm-to-validate-a-ncname">Validate the      <li><a href="#algorithm-to-validate-a-ncname">Validate the
498      <code>nodeName</code> attribute value as an <code>NCName</code></a>.</li>      <code>nodeName</code> attribute value as an <code>NCName</code></a>.</li>
499      <li>If the <code>childNodes</code> list of <var>n</var> contains      <li>For each node <dfn id=var-er-nc><var>n<sub><var>c</var></sub></var></dfn>
500      a node which is <em>not</em> <code>Element</code>,      in the <code>childNodes</code> list of <var>n</var>,
501      <code>Text</code>, <code>CDATASection</code>, <code>Comment</code>,        <ol>
502      <code>ProcessingInstruction</code>, or        <li>If <var>n<sub><var>c</var></sub></var> is <em>not</em> an
503      <code>EntityReference</code> node, then it is a        <code>Element</code>,
504      <a href="#xml-well-formedness-error" id=wfe-er-child><code>xml-well-formedness-error</code></a>.</li>        <code>Text</code>, <code>CDATASection</code>, <code>Comment</code>,
505      <li>If the <code>childNodes</code> list of <var>n</var> contains        <code>ProcessingInstruction</code>, or <code>EntityReference</code>
506      an <code>EntityReference</code> node, it is an        node, then it is an
507      <a href="#entity-error" id=ee-er-in-entity><code>entity-error</code></a>.</li>        <a href="#xml-well-formedness-error" id=wfe-er-child><code>xml-well-formedness-error</code></a>.</li>
508      <li><a href="#algorithm-to-check-a-node">Check each node</a>, in        <li>Otherwise, if <var>n<sub><var>c</var></sub></var> is <em>not</em> an
509      <code>childNodes</code> list of <var>n</var>,        <code>EntityReference</code> node, then it is an
510      which is different from <code>EntityReference</code> recursively.</li>        <a href="#entity-error" id=ee-entity-er><code>entity-error</code></a>.</li>
511          <li>Otherwise,
512          <a href="#algorithm-to-check-a-node" title="check a node">check
513          <var>n<sub><var>c</var></sub></var></a> recursively.</li>
514          </ol></li>
515      </ol>      </ol>
516    </dd>    </dd>
517  <dt>If <var>n</var> is a <code>Notation</code> node</dt>  <dt>If <var>n</var> is a <code>Notation</code> node</dt>
# Line 399  following:</p> Line 526  following:</p>
526      <a href="#xml-well-formedness-error" id=wfe-dt-system-id><code>xml-well-formedness-error</code></a>.</li>      <a href="#xml-well-formedness-error" id=wfe-dt-system-id><code>xml-well-formedness-error</code></a>.</li>
527      <li>If the <code>childNodes</code> list of <var>n</var> contains      <li>If the <code>childNodes</code> list of <var>n</var> contains
528      any nodes, they are in      any nodes, they are in
529      <a href="#xml-well-formedness-error" id=wfe-notation-child><code>xml-well-formedness-error</code></a>s.</li>      <a href="#xml-well-formedness-error" id=wfe-notation-child><code>xml-well-formedness-error</code></a>.</li>
530      </ol>      </ol>
531    </dd>    </dd>
532  <dt>If <var>n</var> is a <code>ProcessingInstruction</code> node</dt>  <dt>If <var>n</var> is a <code>ProcessingInstruction</code> node</dt>
# Line 421  following:</p> Line 548  following:</p>
548      <a href="#round-trip-error" id=rte-pi-data><code>round-trip-error</code></a>.</li>      <a href="#round-trip-error" id=rte-pi-data><code>round-trip-error</code></a>.</li>
549      <li>If the <code>childNodes</code> list of <var>n</var> contains      <li>If the <code>childNodes</code> list of <var>n</var> contains
550      any nodes, they are in      any nodes, they are in
551      <a href="#xml-well-formedness-error" id=wfe-pi-child><code>xml-well-formedness-error</code></a>s.</li>      <a href="#xml-well-formedness-error" id=wfe-pi-child><code>xml-well-formedness-error</code></a>.</li>
552      </ol>      </ol>
553    </dd>    </dd>
554  <dt>If <var>n</var> is a <code>Text</code> node</dt>  <dt>If <var>n</var> is a <code>Text</code> node</dt>
# Line 432  following:</p> Line 559  following:</p>
559      data</a>.</li>      data</a>.</li>
560      <li>If the <code>childNodes</code> list of <var>n</var> contains      <li>If the <code>childNodes</code> list of <var>n</var> contains
561      any nodes, they are in      any nodes, they are in
562      <a href="#xml-well-formedness-error" id=wfe-text-child><code>xml-well-formedness-error</code></a>s.</li>      <a href="#xml-well-formedness-error" id=wfe-text-child><code>xml-well-formedness-error</code></a>.</li>
563      </ol>      </ol>
564    </dd>    </dd>
565  <dt>Otherwise</dt>  <dt>Otherwise</dt>
566    <dd><span class=ed>xml-well-formedness-error?  unknown-error?</span></dd>    <dd><span class=ed>xml-well-formedness-error?  unknown-error?</span></dd>
567  </dl>  </dl>
568    
 <p>The algorithm  
 <dfn id=algorithm-to-validate-an-xml-character-data title-"to validate an XML character data">to  
 validate an <abbr>XML</abbr> character data  
 (<dfn id=var-s><var>s</var></dfn>)</dfn> is defined as following:</p>  
 <ol>  
 <li class=ed>@@</li>  
 </ol>  
   
 <p>The algorithm  
 <dfn id=algorithm-to-validate-a-name title="to validate a Name">to validate a  
 <code>Name</code> (<dfn id=var-name><var>name</var></dfn>)</dfn> is defined  
 as following:</p>  
 <ol>  
 <li class=ed>@@</li>  
 </ol>  
   
 <p>The algorithm  
 <dfn id=algorithm-to-validate-a-ncname title="to validate an NCName">to  
 validate an <code>NCName</code> (<dfn id=var-name><var>name</var></dfn>)</dfn>  
 is defined as following:</p>  
 <ol>  
 <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  
 algorithm below <em class=rfc2119>MUST</em> be used:</p>  
 <ol>  
     <li>If <var>pid</var> contains any character  
     that is outside of the range of <code>#x20 | <!--#xD | #xA |-->  
     [a-zA-Z0-9] | [-'()+,./:=?;!*#@$_%]</code><!-- @@ TODO: formal def -->,  
     or contains a leading <code class=char>U+0020</code> character,  
     a trailing <code class=char>U+0020</code> character, or a  
     sequence of two or more <code class=char>U+0020</code> characters,  
     then it is a  
     <a href="#xml-well-formedness-error" id=wfe-dt-public-id><code>xml-well-formedness-error</code></a>.</li>  
 </ol>  
   
 </div>  
   
 <div class="section" id="examples">  
 <h2>Examples</h2>  
   
 <p class=section-info>This section is <em>non$B!>(Bnormative</em>.</p>  
   
 <div class="ed issue">  
   
 <div class="example figure block">  
 <div class="caption">...</div>  
   
 <pre><code>...</code></pre>  
 </div>  
   
569  </div>  </div>
570    
571  </div>  </div>
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