273 |
<code>embed</code>, <code>param</code>, <code>area</code>, |
<code>embed</code>, <code>param</code>, <code>area</code>, |
274 |
<code>col</code>, and <code>input</code> elements.</p> |
<code>col</code>, and <code>input</code> elements.</p> |
275 |
|
|
276 |
<dl> |
<dl class="switch"> |
277 |
<dt><code><script/></code></dt> |
<dt><code><script/></code></dt> |
278 |
<dd><p>The polytheistic slash cannot be used for <code>script</code> |
<dd><p>The polytheistic slash cannot be used for <code>script</code> |
279 |
element. Even for an empty <code>script</code> element, |
element. Even for an empty <code>script</code> element, |
289 |
<dd>These elements are themselves non-conforming.</dd> |
<dd>These elements are themselves non-conforming.</dd> |
290 |
<!-- isindex, image --> |
<!-- isindex, image --> |
291 |
<dt><code><command/></code>, <code><event-source/></code>, |
<dt><code><command/></code>, <code><event-source/></code>, |
292 |
<code><source/></code></dt> |
<code><nest/></code>, or <code><source/></code></dt> |
293 |
<dd>Future revision of HTML5 parsing algorithm is expected |
<dd>Future revision of HTML5 parsing algorithm is expected |
294 |
to allow polytheistic slash for these elements.</dd> |
to allow polytheistic slash for these elements.</dd> |
295 |
<dt><code><a/></code>, <code><p/></code></dt> |
<dt><code><a/></code>, <code><p/></code></dt> |
314 |
(<code><?xml-stylesheet <var>...</var>?></code>), are not allowed |
(<code><?xml-stylesheet <var>...</var>?></code>), are not allowed |
315 |
in the HTML syntax. The document is non-conforming.</p> |
in the HTML syntax. The document is non-conforming.</p> |
316 |
|
|
317 |
<dl> |
<dl class="switch"> |
318 |
|
<dt><code><?xbl?></code> (<abbr>XBL</abbr> Association)</dt> |
319 |
|
<dd>An <abbr>XBL</abbr> binding cannot be associated by |
320 |
|
<abbr title="processing instruction">PI</abbr> in <abbr>HTML</abbr> |
321 |
|
document. Use <code>binding</code> property in <abbr>CSS</abbr> |
322 |
|
style sheet.</dd> |
323 |
<dt><code><?xml?></code> (XML declaration)</dt> |
<dt><code><?xml?></code> (XML declaration)</dt> |
324 |
<dd>XML declaration is unnecessary for HTML documents.</dd> |
<dd>XML declaration is unnecessary for HTML documents.</dd> |
325 |
<dt><code><?xml-stylesheet?></code> (XML style sheet |
<dt><code><?xml-stylesheet?></code> (XML style sheet |
326 |
<abbr title="processing instruction">PI</abbr></dt> |
<abbr title="processing instruction">PI</abbr>)</dt> |
327 |
<dd>Use HTML <code>link</code> element with <code>rel</code> |
<dd>Use HTML <code>link</code> element with <code>rel</code> |
328 |
attribute set to <code>stylesheet</code> (or, |
attribute set to <code>stylesheet</code> (or, |
329 |
<code>alternate stylesheet</code> for an alternate style |
<code>alternate stylesheet</code> for an alternate style |
330 |
sheet).</dd> |
sheet).</dd> |
331 |
<dt><code><?php?></code> (PHP code)</dt> |
<dt><code><?php?></code> or |
332 |
|
<code><? <var>... <abbr>PHP</abbr> code ...</var> ?></code> |
333 |
|
(<abbr>PHP</abbr> code)</dt> |
334 |
<dd>The conformance checker does <em>not</em> support |
<dd>The conformance checker does <em>not</em> support |
335 |
checking for PHP source documents.</dd> |
checking for PHP source documents.</dd> |
336 |
<dt>Other processing instructions</dt> |
<dt>Other processing instructions</dt> |
477 |
</p> |
</p> |
478 |
|
|
479 |
<p>Only white space characters and comments are allowed |
<p>Only white space characters and comments are allowed |
480 |
before the <code>DOCTYPE</code>.</p> |
before the <code>DOCTYPE</code>. XML declaration is <em>not</em> |
481 |
|
allowed in HTML document.</p> |
482 |
</d:desc> |
</d:desc> |
483 |
</d:item> |
</d:item> |
484 |
|
|
501 |
For any element except for void element, there must be an explicit |
For any element except for void element, there must be an explicit |
502 |
end tag.</p> |
end tag.</p> |
503 |
|
|
504 |
|
<dl class="switch"> |
505 |
|
<dt>HTML <code>canvas</code> element</dt> |
506 |
|
<dd>Though the element is void in earlier versions of Safari, |
507 |
|
the <code>canvas</code> element is <em>no</em> longer |
508 |
|
defined as empty. There must be an end tag |
509 |
|
<code></canvas></code>.</dd> |
510 |
|
</dl> |
511 |
|
|
512 |
<p>Note that misnesting tags, such as |
<p>Note that misnesting tags, such as |
513 |
<code class="bad example"><a><b></a></b></code>, are not |
<code class="bad example"><a><b></a></b></code>, are not |
514 |
allowed and they also cause this error.</p> |
allowed and they also cause this error.</p> |
560 |
|
|
561 |
<p>For any end tag in HTML document, there must be a |
<p>For any end tag in HTML document, there must be a |
562 |
corresponding start tag.</p> |
corresponding start tag.</p> |
563 |
|
|
564 |
|
<dl class="switch"> |
565 |
|
<dt>HTML <code>base</code>, <code>basefont</code>, |
566 |
|
<code>bgsound</code>, <code>br</code>, <code>col</code>, |
567 |
|
<code>embed</code>, <code>frame</code>, <code>hr</code>, |
568 |
|
<code>image</code>, <code>img</code>, <code>input</code>, |
569 |
|
<code>isindex</code>, <code>link</code>, <code>meta</code>, |
570 |
|
<code>param</code>, <code>spacer</code>, or <code>wbr</code> element</dt> |
571 |
|
<dd>End tag is not allowed for these elements, since |
572 |
|
those content must always be empty. Remove end tag.</dd> |
573 |
|
<!-- keygen --> |
574 |
|
<!-- command, event-source, nest, source --> |
575 |
|
</dl> |
576 |
</d:desc> |
</d:desc> |
577 |
</d:item> |
</d:item> |
578 |
|
|
617 |
must contain a <code><var>$0</var></code> child element. |
must contain a <code><var>$0</var></code> child element. |
618 |
The document is non-conforming.</p> |
The document is non-conforming.</p> |
619 |
|
|
620 |
<p>For example: |
<dl class="switch"> |
621 |
<ul> |
<dt>HTML <code>head</code> element</dt> |
622 |
<li>The <code>head</code> element must contain exactly one |
<dd>There must be a <code>title</code> child element.</dd> |
623 |
<code>title</code> child element.</li> |
<dt>HTML <code>html</code> element</dt> |
624 |
<li><a href="#child-element-missing:td%7Cth">The <code>tr</code> |
<dd>There must be a <code>head</code> child element followed |
625 |
element must contain one or more <code>td</code> or <code>th</code> |
by a <code>body</code> element.</dd> |
626 |
child element.</a></li> |
<dt>HTML <code>tr</code> element</dt> |
627 |
</ul> |
<dd><a href="#child-element-missing:td%7Cth">There must be |
628 |
</p> |
one or more <code>td</code> or <code>th</code> child element.</a></dd> |
629 |
|
</dl> |
630 |
</d:desc> |
</d:desc> |
631 |
</d:item> |
</d:item> |
632 |
|
|
690 |
and in the <code>head</code> element. |
and in the <code>head</code> element. |
691 |
It cannot be used in e.g. <code>ul</code>, <code>table</code>, |
It cannot be used in e.g. <code>ul</code>, <code>table</code>, |
692 |
or <code>select</code>.</dd> |
or <code>select</code>.</dd> |
|
<dt>If the element with the error is the <code>html</code> element |
|
|
that is the root element of an XHTML document</dt> |
|
|
<dd><p>In an XHTML document, the root <code>html</code> |
|
|
element must have an <code>xmlns</code> attribute |
|
|
whose value is set to |
|
|
<code>http://www.w3.org/1999/xhtml</code>.</p></dd> |
|
693 |
<dt>If the element with the error is <code>blink</code>, |
<dt>If the element with the error is <code>blink</code>, |
694 |
<code>center</code>, or <code>marquee</code> element</dt> |
<code>center</code>, or <code>marquee</code> element</dt> |
695 |
<dd>These elements are not part of the HTML standard. |
<dd>These elements are not part of the HTML standard. |
709 |
</d:desc> |
</d:desc> |
710 |
</d:item> |
</d:item> |
711 |
|
|
712 |
|
<d:item name="element not allowed:root" |
713 |
|
class="content-model-error"> |
714 |
|
<d:message xml:lang="en">This element is not allowed as a root |
715 |
|
element.</d:message> |
716 |
|
<d:desc xml:lang="en"> |
717 |
|
<p>An element that is not allowed as the root element |
718 |
|
is used as the root element of the document. The document is |
719 |
|
non-conforming, as far as the conformance checker can tell.</p> |
720 |
|
|
721 |
|
<dl class="switch"> |
722 |
|
<dt><code>html</code> element in an XHTML document</dt> |
723 |
|
<dd><p>In an XHTML document, the root <code>html</code> |
724 |
|
element must have an <code>xmlns</code> attribute |
725 |
|
whose value is set to |
726 |
|
<code>http://www.w3.org/1999/xhtml</code>.</p></dd> |
727 |
|
<dt><code>rss</code> element</dt> |
728 |
|
<dd><p>The document is written in some version of RSS.</p> |
729 |
|
<p>The conformance checker does not support any version |
730 |
|
of RSS. Use Atom 1.0 for feed documents.</p></dd> |
731 |
|
<dt><code>feed</code> element</dt> |
732 |
|
<dd><p>The Atom <code>feed</code> element must be |
733 |
|
in the <code>http://www.w3.org/2004/Atom</code> |
734 |
|
namespace.</p> |
735 |
|
<p>The conformance checker does not support Atom 0.3. |
736 |
|
Use Atom 1.0 for feed documents.</p></dd> |
737 |
|
</dl> |
738 |
|
</d:desc> |
739 |
|
</d:item> |
740 |
|
|
741 |
<d:item name="ps element missing" |
<d:item name="ps element missing" |
742 |
class="content-model-error"> |
class="content-model-error"> |
743 |
<d:message xml:lang="en">There is no <code><var>$0</var></code> |
<d:message xml:lang="en">There is no <code><var>$0</var></code> |
937 |
<p>The specified link type is non-conforming, and therefore |
<p>The specified link type is non-conforming, and therefore |
938 |
the document is non-conforming.</p> |
the document is non-conforming.</p> |
939 |
|
|
940 |
<dl> |
<dl class="switch"> |
941 |
<dt>Link type <code>contents</code></dt> |
<dt>Link type <code>contents</code></dt> |
942 |
<dd>Use link type <code>index</code>.</dd> |
<dd>Use link type <code>index</code>.</dd> |
943 |
<dt>Link type <code>copyright</code></dt> |
<dt>Link type <code>copyright</code></dt> |
944 |
<dd>Use link type <code>license</code>.</dd> |
<dd>Use link type <code>license</code>.</dd> |
945 |
<dt>Link type <code>home</code></dt> |
<dt>Link type <code>home</code></dt> |
946 |
<dd>Use link type <code>index</code>.</dd> |
<dd>Use link type <code>index</code>.</dd> |
947 |
|
<dt>Link type <code>previous</code></dt> |
948 |
|
<dd>Use link type <code>prev</code>.</dd> |
949 |
<dt>Link type <code>start</code></dt> |
<dt>Link type <code>start</code></dt> |
950 |
<dd>Use link type <code>first</code>.</dd> |
<dd>Use link type <code>first</code>.</dd> |
951 |
<dt>Link type <code>toc</code></dt> |
<dt>Link type <code>toc</code> or <code>top</code></dt> |
952 |
<dd>Use link type <code>index</code>.</dd> |
<dd>Use link type <code>index</code>.</dd> |
953 |
</dl> |
</dl> |
954 |
</d:desc> |
</d:desc> |
991 |
|
|
992 |
<p><strong>Warning</strong>: The data served to the |
<p><strong>Warning</strong>: The data served to the |
993 |
conforming checker might be out of date; it might have already |
conforming checker might be out of date; it might have already |
994 |
been accepted or rejected, depending on which the document |
been accepted or rejected. The document might or might not be |
995 |
might be conforming or non-conforming. See WHATWG Wiki |
conforming depending on the status. See WHATWG Wiki |
996 |
for the latest information.</p> |
for the latest information.</p> |
997 |
</d:desc> |
</d:desc> |
998 |
</d:item> |
</d:item> |
1046 |
class="should" level="s"> |
class="should" level="s"> |
1047 |
<d:message xml:lang="en"><code><var>{@}</var></code>: An <em>obsolete</em> |
<d:message xml:lang="en"><code><var>{@}</var></code>: An <em>obsolete</em> |
1048 |
subtype is used.</d:message> |
subtype is used.</d:message> |
1049 |
|
<d:item xml:lang="en"> |
1050 |
|
<p>The specified Internet Media Type is registered with status |
1051 |
|
of <i>OBSOLETE</i>.</p><!-- @@ SHOULD NOT? --> |
1052 |
|
|
1053 |
|
<dl class="swtich"> |
1054 |
|
<dt>Media type <code>text/ecmascript</code></dt> |
1055 |
|
<dd>Media type <code>text/ecmascript</code> is obsoleted in |
1056 |
|
favor of <code>application/ecmascript</code>. Note that |
1057 |
|
<code>text/javascript</code> would be better alternative |
1058 |
|
for many cases.</dd> |
1059 |
|
<dt>Media type <code>text/javascript</code></dt> |
1060 |
|
<dd>Media type <code>text/javascript</code> is obsoleted by |
1061 |
|
<abbr>IETF</abbr> with backward incompatible alternate |
1062 |
|
<code>application/javascript</code> for architectural |
1063 |
|
purity.<!-- @@ ref? --> Realist may ignore this warning.</dd> |
1064 |
|
</dl> |
1065 |
|
</d:item> |
1066 |
</d:item> |
</d:item> |
1067 |
|
|
1068 |
<d:item name="IMT:private subtype" |
<d:item name="IMT:private subtype" |
1127 |
class="should" level="s"> |
class="should" level="s"> |
1128 |
<d:message xml:lang="en">This IRI does not end with |
<d:message xml:lang="en">This IRI does not end with |
1129 |
a <code>/</code>.</d:message> |
a <code>/</code>.</d:message> |
1130 |
|
<d:item xml:lang="en"> |
1131 |
|
<p>The IRI does not end with a <code>/</code>. If there is an |
1132 |
|
authority component in an IRI, a <code>/</code> should be present |
1133 |
|
instead of empty path component.</p> |
1134 |
|
|
1135 |
|
<p>For example, <code>http://www.example.com<strong>/</strong></code> |
1136 |
|
is preferred to <code>http://www.example.com</code>.</p> |
1137 |
|
</d:item> |
1138 |
</d:item> |
</d:item> |
1139 |
|
|
1140 |
<d:item name="URI::lowercase hexadecimal digit" |
<d:item name="URI::lowercase hexadecimal digit" |
1181 |
|
|
1182 |
</section> |
</section> |
1183 |
|
|
1184 |
|
<section id="cache-manifest-errors"> |
1185 |
|
<h2>Cache Manifest Errors</h2> |
1186 |
|
|
1187 |
|
<d:item name="not manifest" class="must" level="m"> |
1188 |
|
<d:message xml:lang="en">This document is not a cache manifest.</d:message> |
1189 |
|
<d:desc xml:lang="en"> |
1190 |
|
<p>The specified document is <em>not</em> a cache manifest. |
1191 |
|
The document is non-conforming.</p> |
1192 |
|
|
1193 |
|
<p>An entity labeled as Internet media type |
1194 |
|
<code>text/cache-manifest</code> must contain a cache manifest.</p> |
1195 |
|
|
1196 |
|
<p>A cache manifest must start with a line whose content is |
1197 |
|
<code>CACHE MANIFEST</code> (exactly one space character between |
1198 |
|
<code>CACHE</code> and <code>MANIFEST</code>).</p> |
1199 |
|
</d:desc> |
1200 |
|
</d:item> |
1201 |
|
</section> |
1202 |
|
|
1203 |
<section id="unsupported-messages"> |
<section id="unsupported-messages"> |
1204 |
<h2><i>Unsupported</i> Messages</h2> |
<h2><i>Unsupported</i> Messages</h2> |
1205 |
|
|
1258 |
is not supported; <em>it might or might not be conforming.</em></d:message> |
is not supported; <em>it might or might not be conforming.</em></d:message> |
1259 |
</d:item> |
</d:item> |
1260 |
|
|
|
<d:item name="language tag" |
|
|
class="unsupported" level="unsupported"> |
|
|
<d:message xml:lang="en">Conformance checking for language tag |
|
|
is not supported; <em>it might or might not be conforming.</em></d:message> |
|
|
</d:item> |
|
|
|
|
1261 |
<d:item name="media query" |
<d:item name="media query" |
1262 |
class="unsupported" level="unsupported"> |
class="unsupported" level="unsupported"> |
1263 |
<d:message xml:lang="en">Conformance checking for media query |
<d:message xml:lang="en">Conformance checking for media query |
1292 |
<section id="license"> |
<section id="license"> |
1293 |
<h2>License of This Document</h2> |
<h2>License of This Document</h2> |
1294 |
|
|
1295 |
<p>Copyright 2007 <a href="http://suika.fam.cx/~wakaba/who?" rel="author" xml:lang="ja">Wakaba</a></p> |
<p>Copyright <time>2007</time> |
1296 |
|
<a href="http://suika.fam.cx/~wakaba/who?" rel="author" xml:lang="ja">Wakaba</a> |
1297 |
|
<code class="mail"><<a href="mailto:w@suika.fam.cx">w@suika.fam.cx</a>></code>.</p> |
1298 |
|
|
1299 |
<p>This document is free software; you can redistribute it |
<p>This document is free software; you can redistribute it |
1300 |
and/or modify it under the same terms as Perl itself.</p> |
and/or modify it under the same terms as Perl itself.</p> |
1301 |
</section> |
</section> |