From a0052f0176bd079e6a94baec59fea2ec5a8d651e Mon Sep 17 00:00:00 2001
From: friendica <info@friendica.com>
Date: Thu, 1 Jan 2015 22:18:27 -0800
Subject: htmlpurifier update - compatibility issue with language library
 autoloader

---
 library/HTMLPurifier/TagTransform/Font.php | 42 +++++++++++++++++++++---------
 1 file changed, 30 insertions(+), 12 deletions(-)

(limited to 'library/HTMLPurifier/TagTransform/Font.php')

diff --git a/library/HTMLPurifier/TagTransform/Font.php b/library/HTMLPurifier/TagTransform/Font.php
index ed2463786..7853d90bc 100644
--- a/library/HTMLPurifier/TagTransform/Font.php
+++ b/library/HTMLPurifier/TagTransform/Font.php
@@ -17,9 +17,14 @@
  */
 class HTMLPurifier_TagTransform_Font extends HTMLPurifier_TagTransform
 {
-
+    /**
+     * @type string
+     */
     public $transform_to = 'span';
 
+    /**
+     * @type array
+     */
     protected $_size_lookup = array(
         '0' => 'xx-small',
         '1' => 'xx-small',
@@ -37,8 +42,14 @@ class HTMLPurifier_TagTransform_Font extends HTMLPurifier_TagTransform
         '+4' => '300%'
     );
 
-    public function transform($tag, $config, $context) {
-
+    /**
+     * @param HTMLPurifier_Token_Tag $tag
+     * @param HTMLPurifier_Config $config
+     * @param HTMLPurifier_Context $context
+     * @return HTMLPurifier_Token_End|string
+     */
+    public function transform($tag, $config, $context)
+    {
         if ($tag instanceof HTMLPurifier_Token_End) {
             $new_tag = clone $tag;
             $new_tag->name = $this->transform_to;
@@ -63,17 +74,25 @@ class HTMLPurifier_TagTransform_Font extends HTMLPurifier_TagTransform
         // handle size transform
         if (isset($attr['size'])) {
             // normalize large numbers
-            if ($attr['size']{0} == '+' || $attr['size']{0} == '-') {
-                $size = (int) $attr['size'];
-                if ($size < -2) $attr['size'] = '-2';
-                if ($size > 4)  $attr['size'] = '+4';
-            } else {
-                $size = (int) $attr['size'];
-                if ($size > 7) $attr['size'] = '7';
+            if ($attr['size'] !== '') {
+                if ($attr['size']{0} == '+' || $attr['size']{0} == '-') {
+                    $size = (int)$attr['size'];
+                    if ($size < -2) {
+                        $attr['size'] = '-2';
+                    }
+                    if ($size > 4) {
+                        $attr['size'] = '+4';
+                    }
+                } else {
+                    $size = (int)$attr['size'];
+                    if ($size > 7) {
+                        $attr['size'] = '7';
+                    }
+                }
             }
             if (isset($this->_size_lookup[$attr['size']])) {
                 $prepend_style .= 'font-size:' .
-                  $this->_size_lookup[$attr['size']] . ';';
+                    $this->_size_lookup[$attr['size']] . ';';
             }
             unset($attr['size']);
         }
@@ -89,7 +108,6 @@ class HTMLPurifier_TagTransform_Font extends HTMLPurifier_TagTransform
         $new_tag->attr = $attr;
 
         return $new_tag;
-
     }
 }
 
-- 
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