40 lines
1,003 B
PHP
Executable file
40 lines
1,003 B
PHP
Executable file
<?php
|
|
|
|
/**
|
|
* Validates a Percentage as defined by the CSS spec.
|
|
*/
|
|
class HTMLPurifier_AttrDef_CSS_Percentage extends HTMLPurifier_AttrDef
|
|
{
|
|
|
|
/**
|
|
* Instance of HTMLPurifier_AttrDef_CSS_Number to defer number validation
|
|
*/
|
|
protected $number_def;
|
|
|
|
/**
|
|
* @param Bool indicating whether to forbid negative values
|
|
*/
|
|
public function __construct($non_negative = false) {
|
|
$this->number_def = new HTMLPurifier_AttrDef_CSS_Number($non_negative);
|
|
}
|
|
|
|
public function validate($string, $config, $context) {
|
|
|
|
$string = $this->parseCDATA($string);
|
|
|
|
if ($string === '') return false;
|
|
$length = strlen($string);
|
|
if ($length === 1) return false;
|
|
if ($string[$length - 1] !== '%') return false;
|
|
|
|
$number = substr($string, 0, $length - 1);
|
|
$number = $this->number_def->validate($number, $config, $context);
|
|
|
|
if ($number === false) return false;
|
|
return "$number%";
|
|
|
|
}
|
|
|
|
}
|
|
|
|
// vim: et sw=4 sts=4
|