- From: Eliot Graff via cvs-syncmail <cvsmail@w3.org>
- Date: Fri, 09 Jul 2010 23:55:01 +0000
- To: public-html-commits@w3.org
Update of /sources/public/html5/html-xhtml-author-guide In directory hutz:/tmp/cvs-serv2207 Modified Files: html-xhtml-authoring-guide.html Log Message: Added colgroup to required elements (bug 9972); edited xlink prefix part of Namespaces (bug 9971); strengthened doctype rules (bug 9958); added section, Disallowed Attributes, and populated it with xml:space and xml:base (bug 10075); Index: html-xhtml-authoring-guide.html =================================================================== RCS file: /sources/public/html5/html-xhtml-author-guide/html-xhtml-authoring-guide.html,v retrieving revision 1.21 retrieving revision 1.22 diff -u -d -r1.21 -r1.22 --- html-xhtml-authoring-guide.html 24 Jun 2010 21:16:20 -0000 1.21 +++ html-xhtml-authoring-guide.html 9 Jul 2010 23:54:59 -0000 1.22 @@ -20,15 +20,16 @@ src="html-xhtml-authoring-guide_files/w3c_home.png" alt="W3C" width="72" height="48"></a></p><h1 class="title" id="title">Polyglot Markup: HTML-Compatible XHTML Documents</h1><h2 -id="w3c-editor-s-draft-24-june-2010">W3C Editor's Draft 24 June 2010</h2><dl><dt>This +id="w3c-editor-s-draft-09-july-2010">W3C Editor's Draft 09 July 2010</h2><dl><dt>This version:</dt><dd><a href="http://dev.w3.org/html5/html-xhtml-author-guide/html-xhtml-authoring-guide.html">http://dev.w3.org/html5/html-xhtml-author-guide/html-xhtml-authoring-guide.html</a></dd><dt>Latest published version:</dt><dd><a href="http://www.w3.org/TR/html-polyglot/">http://www.w3.org/TR/html-polyglot/</a></dd><dt>Latest editor's draft:</dt><dd><a href="http://dev.w3.org/html5/html-xhtml-author-guide/html-xhtml-authoring-guide.html">http://dev.w3.org/html5/html-xhtml-author-guide/html-xhtml-authoring-guide.html</a></dd><dt>Previous - version:</dt><dd>none</dd><dt>Editor:</dt><dd>Eliot Graff, Microsoft -Corporation</dd></dl><p class="copyright"><a + version:</dt><dd>none</dd><dt>Editor:</dt><dd><span>Eliot Graff</span>, + Microsoft Corporation</dd> +</dl><p class="copyright"><a href="http://www.w3.org/Consortium/Legal/ipr-notice#Copyright">Copyright</a> © 2010 <a href="http://www.w3.org/"><acronym title="World Wide Web Consortium">W3C</acronym></a><sup>®</sup> (<a @@ -48,7 +49,7 @@ Polyglot markup that meets these constraints as interpreted as compatible, regardless of whether they are processed as HTML or as XHTML, per the HTML5 specification. - Polyglot markup uses a specific doctype, namespace declarations, + Polyglot markup uses a specific DOCTYPE, namespace declarations, and a specific case—normally lower case but occasionally camel case—for element and attribute names. Polyglot markup uses lower case for certain attribute values. @@ -120,19 +121,21 @@ Values</a></li></ul></li><li class="tocline"><a class="tocxref" href="#empty-elements"><span class="secno">6.3 </span>Empty Elements</a></li></ul></li><li class="tocline"><a class="tocxref" href="#attributes"><span -class="secno">7. </span>Attributes</a></li><li class="tocline"><a -class="tocxref" href="#named-entity-references"><span class="secno">8. </span>Named - Entity References</a></li><li class="tocline"><a class="tocxref" -href="#script-and-style"><span class="secno">9. </span>Script and Style</a><ul - class="toc"><li class="tocline"><a class="tocxref" -href="#external-script-and-style"><span class="secno">9.1 </span>External - Script and Style</a></li><li class="tocline"><a class="tocxref" -href="#in-line-script-and-style"><span class="secno">9.2 </span>In-line -Script and Style</a><ul class="toc"><li class="tocline"><a -class="tocxref" href="#safe-content"><span class="secno">9.2.1 </span>Safe - Content</a></li><li class="tocline"><a class="tocxref" -href="#wrapping-in-cdata"><span class="secno">9.2.2 </span>Wrapping a -Command in a CDATA Section</a></li></ul></li></ul></li><li +class="secno">7. </span>Attributes</a><ul class="toc"><li +class="tocline"><a class="tocxref" href="#disallowed-attributes"><span +class="secno">7.1 </span>Disallowed Attributes</a></li></ul></li><li +class="tocline"><a class="tocxref" href="#named-entity-references"><span + class="secno">8. </span>Named Entity References</a></li><li +class="tocline"><a class="tocxref" href="#script-and-style"><span +class="secno">9. </span>Script and Style</a><ul class="toc"><li +class="tocline"><a class="tocxref" href="#external-script-and-style"><span + class="secno">9.1 </span>External Script and Style</a></li><li +class="tocline"><a class="tocxref" href="#in-line-script-and-style"><span + class="secno">9.2 </span>In-line Script and Style</a><ul class="toc"><li + class="tocline"><a class="tocxref" href="#safe-content"><span +class="secno">9.2.1 </span>Safe Content</a></li><li class="tocline"><a +class="tocxref" href="#wrapping-in-cdata"><span class="secno">9.2.2 </span>Wrapping + a Command in a CDATA Section</a></li></ul></li></ul></li><li class="tocline"><a class="tocxref" href="#foreign-content"><span class="secno">10. </span>Exceptions from the Foreign Content Parsing Rules</a></li><li class="tocline"><a class="tocxref" @@ -213,11 +216,55 @@ <div id="doctype" class="section"> <!--OddPage--><h2><span class="secno">4. </span>The DOCTYPE</h2> <p> - Polyglot markup uses the <code><!DOCTYPE html></code> doctype. - Note that for polyglot markup the string, <code>html</code>, <em -title="must" class="rfc2119">must</em> be lower case. - For a pure HTML document, the string is defined as case-insensitive. [<a - href="#bib-HTML5" rel="biblioentry" class="bibref">HTML5</a>] + Polyglot markup <em title="should" class="rfc2119">should</em> use the + <code><!DOCTYPE html></code> document type declaration. + Polyglot markup conforms to the following rules for this document type + declaration: + </p><ul> + <li>the string <code>DOCTYPE</code> is in uppercase letters.</li> + <li>the string <code>html</code> is in lowercase letters.</li> + <li>the string <code>SYSTEM</code>, if present, is in uppercase +letters.</li> + <li>the string <code>PUBLIC</code>, if present, is in uppercase +letters.</li> + <li>a Formal Public Identifier (FPI), if present, is a case-sensitive + match of the registered FPI to which it points.</li> + <li>a URI, if present in the document type declaration, is a +case-sensitive match of the URI to which it points.</li> + <ul> + <li>If the URI is the string <code>about:legacy-compat</code>, the +string <em title="must" class="rfc2119">must</em> be in lowercase, as +required by HTML5.</li> + <li>If the URI is an http URL, the URI must point to the correct +resource, using case-sensitive letters.</li> + </ul> + </ul> + + <p> + Other document type declarations can also be used so long as they +conform to the following rules: + </p> + <ul> + <li>If polyglot markup contains one of the XHTML document type +declaration that HTML5 describes as obsolete but still HTML5 compatible, + that document type declaration <em title="must" class="rfc2119">must</em> + be used in an XML-compatible way, as described above for the <code><!DOCTYPE + html></code> document type declaration.</li> + <li>Polyglot markup may use any other XHTML document type declaration +with a referenced DTD, if the document type declaration has the same +effect on HTML5-parsers as <code><!DOCTYPE html></code> has (in +particular it must trigger strict mode). + However, note that by using a document type declaration that +references a DTD, the document is required to follow the rules of the +DTD. + The rules of the DTD may or may not be compatible with polyglot +markup.</li> + </ul> + <p> + Note that polyglot markup cannot use document type declarations for +HTML4, HTML3, or HTML2, regardless of whether they contain a URI or not +and regardless of their effect in HTML5 parsers, as these document type +declarations are not compatible with XHTML. </p> </div> @@ -241,16 +288,10 @@ </li> <li> The xlink prefix is defined as <code>xmlns:xlink="http://www.w3.org/1999/xlink"</code> - before using xlink:href. The prefix can be defined either: - <ul> - <li> - Once on the root <code><html></code> element. - </li> - <li> - Once on each <code><svg></code> element that contains -one or more elements with xlink:href attributes. - </li> - </ul> + before using <code>xlink:href</code>. + The prefix must be declared on an SVG or MathML element by using + an attribute in the xlink namespace or on any of its SVG or MathML +ancestors. </li> <li> No other elements should have namespace declarations. @@ -291,6 +332,23 @@ <pre class="example"><table> <tr>...</pre> + <p> + Polyglot markup <em title="must" class="rfc2119">must</em> +explicitly have a <code>colgroup</code> element surrounding groups of <code>col</code> + elements within a <code>table</code> element. + HTML parsers insert the <code>colgroup</code> element, but XML +parsers do not, thus creating different DOMs. + </p> + <p> + Correct: + </p><pre class="example"><table> + <colgroup> + <col>...</pre> + Incorrect: + <pre class="example"><table> + <col>...</pre> + + </div> </div> @@ -568,6 +626,22 @@ marks.</p> <p>See also <a href="#attribute-values">Attribute Values</a>.</p> + <div id="disallowed-attributes" class="section"> + <h3><span class="secno">7.1 </span>Disallowed Attributes</h3> + <p> + The following attributes are not allowed in polyglot markup. + These attributes have effects in documents parsed as XML but do not +have effects in documents parsed as text/html. + The HTML5 spec therefore defines them as invalid in text/html +documents. [<a href="#bib-HTML5" rel="biblioentry" class="bibref">HTML5</a>] + </p><ul> + <li><code>xml:space</code></li> + <li><code>xml:base</code></li> + </ul> + + + </div> + </div> <div id="named-entity-references" class="section">
Received on Friday, 9 July 2010 23:55:03 UTC