From f718e2b0db0fe3477212a8dd6c3ec067f4432862 Mon Sep 17 00:00:00 2001
From: Klaus Weidenbach <Klaus.Weidenbach@gmx.net>
Date: Sat, 18 Mar 2017 17:50:05 +0100
Subject: :arrow_up: Update HTML Purifier library.

Updated HTML Purifier from 4.6.0 to 4.9.2 with better PHP7 compatibility.
Used composer to manage this library.
---
 .../HTMLPurifier/AttrDef/CSS/Percentage.php        | 54 ++++++++++++++++++++++
 1 file changed, 54 insertions(+)
 create mode 100644 vendor/ezyang/htmlpurifier/library/HTMLPurifier/AttrDef/CSS/Percentage.php

(limited to 'vendor/ezyang/htmlpurifier/library/HTMLPurifier/AttrDef/CSS/Percentage.php')

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 000000000..f0f25c50a
--- /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
-- 
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