tidy-html5/test/html5/html4/center25.html

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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>
center25.html - center tag on table
</title>
<style>
strong { color: red }
</style>
</head>
<body>
<center>
<table>
<tr><td>Table centered by &lt;center&gt;</td></tr>
</table>
</center>
<p>This file contains <strong>&lt;center;&gt; ... &lt;/center;&gt;</strong>
</p>
<p>The 'experimental' Nu Markup Checker flags this as an <strong>HTML5 ERROR</strong> with the string <strong>
&quot;Error: The center element is obsolete. Use CSS instead.&quot;</strong>
</p>
<p>If 'clean' at present tidy 'silently' replaces this with a &lt;div class=&quot;c1&quot;&gt;, and
add the CSS in TY_(CleanDocument)(doc), ...
</p>
<p>Q: <strong>Should this behaviour be modified?</strong>
</p>
<p>A: There are various possibilities<br>
<ul>
<li>If the document is configured (or found?) to be HTML5, then
<ul>
<li>If clean configured
<ul>
<li>Fix it silently, <strong>as now</strong>
<li>Fix it with a warning
<li>No fix and flag as an error, like the validator
</ul>
<li>Clean not configured
<ul>
<li>No fix, with no warning or error, <strong>as now</strong>
<li>Fix it with a warning
<li>No fix and flag as an error, like the validator
</ul>
</ul>
<li>Else if NOT configured (or found?) to be HTML5
<ul>
<li>If clean configured
<ul>
<li>Fix it silently, <strong>as now</strong>
<li>Fix it with a warning
</ul>
<li>Clean not configured
<ul>
<li>Flag as a warning
<li>Flag as an error
<li>No warning or error, <strong>as now</strong>
</ul>
</ul>
</ul>
<p>Also perhaps Tidy5 needs another configuration parameter as suggested by the validator.w3.org,
namely <strong>&quot;HTML4-specific tokenization errors are enabled.&quot;</strong> That is being
able to clearly inform tidy that is the document is to be taken as HTML5, then certain
tags are to be an error.
</p>
</body>
</html>