1<?php
2
3/**
4 * Primitive email validation class based on the regexp found at
5 * http://www.regular-expressions.info/email.html
6 */
7class HTMLPurifier_AttrDef_URI_Email_SimpleCheck extends HTMLPurifier_AttrDef_URI_Email
8{
9
10    /**
11     * @param string $string
12     * @param HTMLPurifier_Config $config
13     * @param HTMLPurifier_Context $context
14     * @return bool|string
15     */
16    public function validate($string, $config, $context)
17    {
18        // no support for named mailboxes i.e. "Bob <bob@example.com>"
19        // that needs more percent encoding to be done
20        if ($string == '') {
21            return false;
22        }
23        $string = trim($string);
24        $result = preg_match('/^[A-Z0-9._%-]+@[A-Z0-9.-]+\.[A-Z]{2,4}$/i', $string);
25        return $result ? $string : false;
26    }
27}
28
29// vim: et sw=4 sts=4
30