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Add AutoFormat.RemoveEmpty.Predicate, fixes #35.

Signed-off-by: Edward Z. Yang <ezyang@cs.stanford.edu>
This commit is contained in:
Edward Z. Yang
2014-08-31 11:16:30 +01:00
parent b8704535a3
commit 39d3df1fd7
6 changed files with 53 additions and 5 deletions

View File

@@ -0,0 +1,14 @@
AutoFormat.RemoveEmpty.Predicate
TYPE: hash
VERSION: 4.7.0
DEFAULT: array('colgroup' => array(), 'th' => array(), 'td' => array(), 'iframe' => array('src'))
--DESCRIPTION--
<p>
Given that an element has no contents, it will be removed by default, unless
this predicate dictates otherwise. The predicate can either be an associative
map from tag name to list of attributes that must be present for the element
to be considered preserved: thus, the default always preserves <code>colgroup</code>,
<code>th</code> and <code>td</code>, and also <code>iframe</code> if it
has a <code>src</code>.
</p>
--# vim: et sw=4 sts=4

View File

@@ -28,10 +28,10 @@ class HTMLPurifier_Injector_RemoveEmpty extends HTMLPurifier_Injector
private $removeNbspExceptions;
/**
* Cached contents of %AutoFormat.RemoveEmpty.Predicate
* @type array
* TODO: make me configurable
*/
private $_exclude = array('colgroup' => 1, 'th' => 1, 'td' => 1, 'iframe' => 1);
private $exclude;
/**
* @param HTMLPurifier_Config $config
@@ -45,6 +45,7 @@ class HTMLPurifier_Injector_RemoveEmpty extends HTMLPurifier_Injector
$this->context = $context;
$this->removeNbsp = $config->get('AutoFormat.RemoveEmpty.RemoveNbsp');
$this->removeNbspExceptions = $config->get('AutoFormat.RemoveEmpty.RemoveNbsp.Exceptions');
$this->exclude = $config->get('AutoFormat.RemoveEmpty.Predicate');
$this->attrValidator = new HTMLPurifier_AttrValidator();
}
@@ -75,11 +76,15 @@ class HTMLPurifier_Injector_RemoveEmpty extends HTMLPurifier_Injector
break;
}
if (!$next || ($next instanceof HTMLPurifier_Token_End && $next->name == $token->name)) {
if (isset($this->_exclude[$token->name])) {
return;
}
$this->attrValidator->validateToken($token, $this->config, $this->context);
$token->armor['ValidateAttributes'] = true;
if (isset($this->exclude[$token->name])) {
$r = true;
foreach ($this->exclude[$token->name] as $elem) {
if (!isset($token->attr[$elem])) $r = false;
}
if ($r) return;
}
if (isset($token->attr['id']) || isset($token->attr['name'])) {
return;
}