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<?php
/**
* Injector that converts configuration directive syntax %Namespace.Directive
* to links
*/
class HTMLPurifier_Injector_PurifierLinkify extends HTMLPurifier_Injector
{
/**
* @type string
*/
public $name = 'PurifierLinkify';
/**
* @type string
*/
public $docURL;
/**
* @type array
*/
public $needed = array('a' => array('href'));
/**
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return string
*/
public function prepare($config, $context)
{
$this->docURL = $config->get('AutoFormat.PurifierLinkify.DocURL');
return parent::prepare($config, $context);
}
/**
* @param HTMLPurifier_Token $token
*/
public function handleText(&$token)
{
if (!$this->allowsElement('a')) {
return;
}
if (strpos($token->data, '%') === false) {
return;
}
$bits = preg_split('#%([a-z0-9]+\.[a-z0-9]+)#Si', $token->data, -1, PREG_SPLIT_DELIM_CAPTURE);
$token = array();
// $i = index
// $c = count
// $l = is link
for ($i = 0, $c = count($bits), $l = false; $i < $c; $i++, $l = !$l) {
if (!$l) {
if ($bits[$i] === '') {
continue;
}
$token[] = new HTMLPurifier_Token_Text($bits[$i]);
} else {
$token[] = new HTMLPurifier_Token_Start(
'a',
array('href' => str_replace('%s', $bits[$i], $this->docURL))
);
$token[] = new HTMLPurifier_Token_Text('%' . $bits[$i]);
$token[] = new HTMLPurifier_Token_End('a');
}
}
}
}
// vim: et sw=4 sts=4