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-rw-r--r--library/HTMLPurifier/AttrDef/CSS/Number.php45
1 files changed, 30 insertions, 15 deletions
diff --git a/library/HTMLPurifier/AttrDef/CSS/Number.php b/library/HTMLPurifier/AttrDef/CSS/Number.php
index 3f99e12ec..8edc159e7 100644
--- a/library/HTMLPurifier/AttrDef/CSS/Number.php
+++ b/library/HTMLPurifier/AttrDef/CSS/Number.php
@@ -7,32 +7,44 @@ class HTMLPurifier_AttrDef_CSS_Number extends HTMLPurifier_AttrDef
{
/**
- * Bool indicating whether or not only positive values allowed.
+ * Indicates whether or not only positive values are allowed.
+ * @type bool
*/
protected $non_negative = false;
/**
- * @param $non_negative Bool indicating whether negatives are forbidden
+ * @param bool $non_negative indicates whether negatives are forbidden
*/
- public function __construct($non_negative = false) {
+ public function __construct($non_negative = false)
+ {
$this->non_negative = $non_negative;
}
/**
+ * @param string $number
+ * @param HTMLPurifier_Config $config
+ * @param HTMLPurifier_Context $context
+ * @return string|bool
* @warning Some contexts do not pass $config, $context. These
* variables should not be used without checking HTMLPurifier_Length
*/
- public function validate($number, $config, $context) {
-
+ public function validate($number, $config, $context)
+ {
$number = $this->parseCDATA($number);
- if ($number === '') return false;
- if ($number === '0') return '0';
+ if ($number === '') {
+ return false;
+ }
+ if ($number === '0') {
+ return '0';
+ }
$sign = '';
switch ($number[0]) {
case '-':
- if ($this->non_negative) return false;
+ if ($this->non_negative) {
+ return false;
+ }
$sign = '-';
case '+':
$number = substr($number, 1);
@@ -44,14 +56,20 @@ class HTMLPurifier_AttrDef_CSS_Number extends HTMLPurifier_AttrDef
}
// Period is the only non-numeric character allowed
- if (strpos($number, '.') === false) return false;
+ if (strpos($number, '.') === false) {
+ return false;
+ }
list($left, $right) = explode('.', $number, 2);
- if ($left === '' && $right === '') return false;
- if ($left !== '' && !ctype_digit($left)) return false;
+ if ($left === '' && $right === '') {
+ return false;
+ }
+ if ($left !== '' && !ctype_digit($left)) {
+ return false;
+ }
- $left = ltrim($left, '0');
+ $left = ltrim($left, '0');
$right = rtrim($right, '0');
if ($right === '') {
@@ -59,11 +77,8 @@ class HTMLPurifier_AttrDef_CSS_Number extends HTMLPurifier_AttrDef
} elseif (!ctype_digit($right)) {
return false;
}
-
return $sign . $left . '.' . $right;
-
}
-
}
// vim: et sw=4 sts=4