mirror of https://github.com/friendica/friendica
61 lines
1.3 KiB
PHP
61 lines
1.3 KiB
PHP
<?php
|
|
|
|
/**
|
|
* Validates a MultiLength as defined by the HTML spec.
|
|
*
|
|
* A multilength is either a integer (pixel count), a percentage, or
|
|
* a relative number.
|
|
*/
|
|
class HTMLPurifier_AttrDef_HTML_MultiLength extends HTMLPurifier_AttrDef_HTML_Length
|
|
{
|
|
|
|
/**
|
|
* @param string $string
|
|
* @param HTMLPurifier_Config $config
|
|
* @param HTMLPurifier_Context $context
|
|
* @return bool|string
|
|
*/
|
|
public function validate($string, $config, $context)
|
|
{
|
|
$string = trim($string);
|
|
if ($string === '') {
|
|
return false;
|
|
}
|
|
|
|
$parent_result = parent::validate($string, $config, $context);
|
|
if ($parent_result !== false) {
|
|
return $parent_result;
|
|
}
|
|
|
|
$length = strlen($string);
|
|
$last_char = $string[$length - 1];
|
|
|
|
if ($last_char !== '*') {
|
|
return false;
|
|
}
|
|
|
|
$int = substr($string, 0, $length - 1);
|
|
|
|
if ($int == '') {
|
|
return '*';
|
|
}
|
|
if (!is_numeric($int)) {
|
|
return false;
|
|
}
|
|
|
|
$int = (int)$int;
|
|
if ($int < 0) {
|
|
return false;
|
|
}
|
|
if ($int == 0) {
|
|
return '0';
|
|
}
|
|
if ($int == 1) {
|
|
return '*';
|
|
}
|
|
return ((string)$int) . '*';
|
|
}
|
|
}
|
|
|
|
// vim: et sw=4 sts=4
|