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<?php
/**
* Injector that removes spans with no attributes
*/
class HTMLPurifier_Injector_RemoveSpansWithoutAttributes extends HTMLPurifier_Injector
{
/**
* @type string
*/
public $name = 'RemoveSpansWithoutAttributes';
/**
* @type array
*/
public $needed = array('span');
/**
* @type HTMLPurifier_AttrValidator
*/
private $attrValidator;
/**
* Used by AttrValidator.
* @type HTMLPurifier_Config
*/
private $config;
/**
* @type HTMLPurifier_Context
*/
private $context;
public function prepare($config, $context)
{
$this->attrValidator = new HTMLPurifier_AttrValidator();
$this->config = $config;
$this->context = $context;
return parent::prepare($config, $context);
}
/**
* @param HTMLPurifier_Token $token
*/
public function handleElement(&$token)
{
if ($token->name !== 'span' || !$token instanceof HTMLPurifier_Token_Start) {
return;
}
// We need to validate the attributes now since this doesn't normally
// happen until after MakeWellFormed. If all the attributes are removed
// the span needs to be removed too.
$this->attrValidator->validateToken($token, $this->config, $this->context);
$token->armor['ValidateAttributes'] = true;
if (!empty($token->attr)) {
return;
}
$nesting = 0;
while ($this->forwardUntilEndToken($i, $current, $nesting)) {
}
if ($current instanceof HTMLPurifier_Token_End && $current->name === 'span') {
// Mark closing span tag for deletion
$current->markForDeletion = true;
// Delete open span tag
$token = false;
}
}
/**
* @param HTMLPurifier_Token $token
*/
public function handleEnd(&$token)
{
if ($token->markForDeletion) {
$token = false;
}
}
}
// vim: et sw=4 sts=4
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