From 650694f18fdd8f6f203f45df32572e51a70d1cb7 Mon Sep 17 00:00:00 2001
From: David Woloszyn <david.woloszyn@moodle.com>
Date: Thu, 20 Oct 2022 09:31:34 +1100
Subject: [PATCH] MDL-75475 lib: Applied PHP CSS Parser patches

---
 lib/php-css-parser/CSSList/CSSList.php | 15 ++++++++++++++-
 lib/php-css-parser/Rule/Rule.php       |  1 -
 2 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/lib/php-css-parser/CSSList/CSSList.php b/lib/php-css-parser/CSSList/CSSList.php
index 946740a4999..e24caeeb6f3 100644
--- a/lib/php-css-parser/CSSList/CSSList.php
+++ b/lib/php-css-parser/CSSList/CSSList.php
@@ -89,7 +89,6 @@ abstract class CSSList implements Renderable, Commentable
                 $oListItem->setComments($comments);
                 $oList->append($oListItem);
             }
-            $oParserState->consumeWhiteSpace();
         }
         if (!$bIsRoot && !$bLenientParsing) {
             throw new SourceException("Unexpected end of document", $oParserState->currentLine());
@@ -283,6 +282,20 @@ abstract class CSSList implements Renderable, Commentable
         $this->aContents[] = $oItem;
     }
 
+    /**
+     * Insert an item before its sibling.
+     *
+     * @param mixed $oItem The item.
+     * @param mixed $oSibling The sibling.
+     */
+    public function insert($oItem, $oSibling) {
+        $iIndex = array_search($oSibling, $this->aContents);
+        if ($iIndex === false) {
+            return $this->append($oItem);
+        }
+        array_splice($this->aContents, $iIndex, 0, array($oItem));
+    }
+
     /**
      * Splices the list of contents.
      *
diff --git a/lib/php-css-parser/Rule/Rule.php b/lib/php-css-parser/Rule/Rule.php
index c1ea6df74e5..52b97f38e15 100644
--- a/lib/php-css-parser/Rule/Rule.php
+++ b/lib/php-css-parser/Rule/Rule.php
@@ -106,7 +106,6 @@ class Rule implements Renderable, Commentable
         while ($oParserState->comes(';')) {
             $oParserState->consume(';');
         }
-        $oParserState->consumeWhiteSpace();
 
         return $oRule;
     }