PSR-2 reformatting PHPDoc corrections
[htmlpurifier.git] / library / HTMLPurifier / AttrDef / HTML / MultiLength.php
blobbbb20f2f8021a353c4b99ca937728bdb8a9c1ebb
1 <?php
3 /**
4 * Validates a MultiLength as defined by the HTML spec.
6 * A multilength is either a integer (pixel count), a percentage, or
7 * a relative number.
8 */
9 class HTMLPurifier_AttrDef_HTML_MultiLength extends HTMLPurifier_AttrDef_HTML_Length
12 /**
13 * @param string $string
14 * @param HTMLPurifier_Config $config
15 * @param HTMLPurifier_Context $context
16 * @return bool|string
18 public function validate($string, $config, $context)
20 $string = trim($string);
21 if ($string === '') {
22 return false;
25 $parent_result = parent::validate($string, $config, $context);
26 if ($parent_result !== false) {
27 return $parent_result;
30 $length = strlen($string);
31 $last_char = $string[$length - 1];
33 if ($last_char !== '*') {
34 return false;
37 $int = substr($string, 0, $length - 1);
39 if ($int == '') {
40 return '*';
42 if (!is_numeric($int)) {
43 return false;
46 $int = (int)$int;
47 if ($int < 0) {
48 return false;
50 if ($int == 0) {
51 return '0';
53 if ($int == 1) {
54 return '*';
56 return ((string)$int) . '*';
60 // vim: et sw=4 sts=4