: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.

1 files changed, 44 insertions, 0 deletions

diff --git a/vendor/ezyang/htmlpurifier/library/HTMLPurifier/TagTransform/Simple.php b/vendor/ezyang/htmlpurifier/library/HTMLPurifier/TagTransform/Simple.php
new file mode 100644
index 000000000..71bf10b91
--- /dev/null
+++ b/vendor/ezyang/htmlpurifier/library/HTMLPurifier/TagTransform/Simple.php
@@ -0,0 +1,44 @@
+<?php
+
+/**
+ * Simple transformation, just change tag name to something else,
+ * and possibly add some styling. This will cover most of the deprecated
+ * tag cases.
+ */
+class HTMLPurifier_TagTransform_Simple extends HTMLPurifier_TagTransform
+{
+    /**
+     * @type string
+     */
+    protected $style;
+
+    /**
+     * @param string $transform_to Tag name to transform to.
+     * @param string $style CSS style to add to the tag
+     */
+    public function __construct($transform_to, $style = null)
+    {
+        $this->transform_to = $transform_to;
+        $this->style = $style;
+    }
+
+    /**
+     * @param HTMLPurifier_Token_Tag $tag
+     * @param HTMLPurifier_Config $config
+     * @param HTMLPurifier_Context $context
+     * @return string
+     */
+    public function transform($tag, $config, $context)
+    {
+        $new_tag = clone $tag;
+        $new_tag->name = $this->transform_to;
+        if (!is_null($this->style) &&
+            ($new_tag instanceof HTMLPurifier_Token_Start || $new_tag instanceof HTMLPurifier_Token_Empty)
+        ) {
+            $this->prependCSS($new_tag->attr, $this->style);
+        }
+        return $new_tag;
+    }
+}
+
+// vim: et sw=4 sts=4