mirror of
https://github.com/ezyang/htmlpurifier.git
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44 lines
1.3 KiB
PHP
44 lines
1.3 KiB
PHP
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<?php
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/**
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* Injector that converts e-mails to actual links.
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*/
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class HTMLPurifier_Injector_LinkifyEmail extends HTMLPurifier_Injector
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{
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public $name = 'LinkifyEmail';
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public $needed = array('a' => array('href'));
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public function handleText(&$token) {
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if (!$this->allowsElement('a')) return;
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if (strpos($token->data, '@') === false) {
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// our really quick heuristic failed, abort
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return;
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}
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// e-mail regex comes from Drupal 7, see http://api.drupal.org/_filter_url
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$bits = preg_split('#([A-Za-z0-9._-]+@(?:(?:[A-Za-z0-9._+-]+\.)?[A-Za-z]{2,64}\b))#S', $token->data, -1, PREG_SPLIT_DELIM_CAPTURE);
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$token = array();
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// $i = index
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// $c = count
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// $l = is link
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for ($i = 0, $c = count($bits), $l = false; $i < $c; $i++, $l = !$l) {
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if (!$l) {
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if ($bits[$i] === '') continue;
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$token[] = new HTMLPurifier_Token_Text($bits[$i]);
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} else {
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$token[] = new HTMLPurifier_Token_Start('a', array('href' => 'mailto:' . $bits[$i]));
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$token[] = new HTMLPurifier_Token_Text($bits[$i]);
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$token[] = new HTMLPurifier_Token_End('a');
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}
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}
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}
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}
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// vim: et sw=4 sts=4
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