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-rw-r--r--vendor/ezyang/htmlpurifier/library/HTMLPurifier/AttrDef/CSS/Percentage.php54
1 files changed, 54 insertions, 0 deletions
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