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Update advanced API docs, link to it from index.

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git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@808 48356398-32a2-884e-a903-53898d9a118a
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Edward Z. Yang 2007-03-14 04:56:44 +00:00
parent 72f1984229
commit c5e3796202
2 changed files with 62 additions and 1 deletions
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59
docs/dev-advanced-api.html
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@ -3,7 +3,7 @@
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"><head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<meta name="description" content="Functional specification for HTML Purifier's advanced API." />
<meta name="description" content="Functional specification for HTML Purifier's advanced API for defining custom filtering behavior." />
<link rel="stylesheet" type="text/css" href="style.css" />
<title>Advanced API - HTML Purifier</title>
@ -114,6 +114,23 @@ Currently, we have two modes, which may be used together:</p>
various levels of operation.</dd>
</dl>
<p>A possible call to select modes would be:</p>
<pre>$config->set('HTML', 'Mode', array('correctional', 'lenient'));</pre>
<p>If modes have extra parameters, a hash might work well:</p>
<pre>$config->set('HTML', 'Mode', array(
'correctional' => 9, // strongest level
'lenient' => true // this one's just boolean
));</pre>
<p>Modes may possibly be wrapped up with the filterset declaration:</p>
<pre>$config->set('HTML', 'Filterset', 'Rich: correctional, lenient');</pre>
<p>Further investigation in this field is necessary.</p>
<h3>Selecting Modules / Tags / Attributes</h3>
<p>If this cookie cutter approach doesn't appeal to a user, they may
@ -126,6 +143,46 @@ as a filterset author would use, except that it would go under an
relevant module/tag/attribute selection configuration directives were
non-null.</p>
<p>On the highest level, a user will usually be most interested in
directly specifying which elements and attributes are desired. For
example:</p>
<pre>$config->set('HTML', 'AllowedElements', 'a,b,em,p,blockquote,code,i');</pre>
<p>Attribute declarations could be merged into this declaration as such:</p>
<pre>$config->set('HTML', 'Allowed', 'a[href,title],b,em,p[class],blockquote[cite],code,i');</pre>
<p>...or be kept separate:</p>
<pre>$config->set('HTML', 'AllowedAttributes', 'a.href,a.title,p.class,blockquote.cite');</pre>
<p class="technical">Considering that, internally speaking, as mandated by
the XHTML 1.1 Modularization specification, we have organized our
elements around modules, considerable gymnastics will be needed to
get this sort of functionality working.</p>
<p>A user may also specify a module to load a class of elements and attributes
into their filterest:</p>
<pre>$config->set('HTML', 'Allowed', 'Hypertext,Core');</pre>
<p class="fixme">The granularity of these modules is too coarse for
the average user (for example, the core module loads everything from
the essential <code>p</code> tag to the not-so-safe <code>h1</code>
tag). How do we make this still a viable solution?</p>
<h3>Unified selector</h3>
<p>Because selecting each and every one of these configuration options
is a chore, we may wish to offer a specialized configuration method
for selecting a filterset. Possibility:</p>
<pre>function selectFilter($doctype, $filterset, $mode)</pre>
<p>...which is simply a light wrapper over the individual configuration
calls. A custom config file format or text format could also be adopted.</p>
<div id="version">$Id$</div>
</body></html>

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docs/index.html
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@ -54,6 +54,10 @@ conventions.</p>
<dt><a href="dev-optimization.html">Optimization</a></dt>
<dd>Discusses possible methods of optimizing HTML Purifier.</dd>
<dt><a href="dev-advanced-api.html">Advanced API</a></dt>
<dd>Functional specification for HTML Purifier's advanced API for defining
custom filtering behavior.</dd>
</dl>
<h2>Proposals</h2>