<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>Comparing BBCode-Modules</title>
</head>
<body>
<table border="1">
<tr>
<th>Module/Version</th>
<th></th>
</tr>
<tr>
<th>Unbalanced / incorrectly nested tags</th>
<td>Leaves tags unparsed</td>
<td>Closes open tags or dies<br>depending on tags</th>
<td>Leaves tags unparsed<br>or closes tags if wanted</th>
<td>Creates invalid HTML</th>
<td>Leaves tags unparsed /<br> Creates invalid HTML</th>
</tr>
<tr>
<th>Add own tags</th>
<td>No</td>
<td>Yes</td>
<td>Yes</td>
<td>No</td>
<td>Some (2)</td>
</tr>
<tr>
<th>Unknown Tags</th>
<td>leaves unparsed</td>
<td>leaves unparsed</td>
<td>leaves unparsed</td>
<td>leaves unparsed</td>
<td>leaves unparsed</td>
</tr>
<tr>
<th>Forbidden Tags</th>
<td>leaves unparsed</td>
<td>Dies</td>
<td>leaves unparsed</td>
<td>leaves unparsed</td>
<td>leaves unparsed</td>
</tr>
<tr>
<th>Provides parsed tree</th>
<td>No</td>
<td>Yes</td>
<td>Yes</td>
<td>No</td>
<td>No</td>
</tr>
<tr>
<th>Block in Inline</th>
<td>Creates broken output (1)</td>
<td>Dies</td>
<td>leaves unparsed</td>
<td>Creates invalid HTML<br>depending on block tags</td>
<td>Creates invalid HTML</td>
</tr>
</table>
<ul>
<li>(1) The output from <tt>'[i] italic [code]code block[/code] [/i]'</tt>:<br>
<pre><span style="font-style:italic"> italic </span><div class="bbcode_code_header">Code:</div><div class="bbcode_code_body">code&nbsp;block</div> &lt;/span&gt;</pre>
</li>
<li>(2) Not possible to build tags with unparsed content; must use the builtin [code] tag</li>
</ul>
</body>
</html>