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-rw-r--r-- | vendor/ezyang/htmlpurifier/library/HTMLPurifier/AttrDef/CSS/Percentage.php | 54 |
diff --git a/vendor/ezyang/htmlpurifier/library/HTMLPurifier/AttrDef/CSS/Percentage.php b/vendor/ezyang/htmlpurifier/library/HTMLPurifier/AttrDef/CSS/Percentage.php new file mode 100644 index 0000000..f0f25c5 --- /dev/null +++ b/vendor/ezyang/htmlpurifier/library/HTMLPurifier/AttrDef/CSS/Percentage.php @@ -0,0 +1,54 @@ +<?php + +/** + * Validates a Percentage as defined by the CSS spec. + */ +class HTMLPurifier_AttrDef_CSS_Percentage extends HTMLPurifier_AttrDef +{ + + /** + * Instance to defer number validation to. + * @type HTMLPurifier_AttrDef_CSS_Number + */ + protected $number_def; + + /** + * @param bool $non_negative Whether to forbid negative values + */ + public function __construct($non_negative = false) + { + $this->number_def = new HTMLPurifier_AttrDef_CSS_Number($non_negative); + } + + /** + * @param string $string + * @param HTMLPurifier_Config $config + * @param HTMLPurifier_Context $context + * @return bool|string + */ + public function validate($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 |