From 84865ff97f567d412bf5b5cad4bc57aefaff3747 Mon Sep 17 00:00:00 2001
From: Tymoteusz Motylewski <t.motylewski@gmail.com>
Date: Tue, 30 Aug 2016 22:58:55 +0200
Subject: [PATCH 1/1] [BUGFIX] Highlight keywords containing utf-8 characters
 in pagetree search

Adds a 'u' switch to preg_replace

Resolves: #39979
Releases: 7.6, master
Change-Id: I3c23f60a7bc157b9647d053492ce1bd226296dc8
Reviewed-on: https://review.typo3.org/49667
Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Tested-by: Bamboo TYPO3com <info@typo3.com>
Reviewed-by: Andreas Fernandez <typo3@scripting-base.de>
Reviewed-by: Philipp Gampe <philipp.gampe@typo3.org>
Tested-by: Philipp Gampe <philipp.gampe@typo3.org>
Reviewed-by: Stefan Neufeind <typo3.neufeind@speedpartner.de>
Tested-by: Stefan Neufeind <typo3.neufeind@speedpartner.de>
---
 typo3/sysext/backend/Classes/Tree/Pagetree/DataProvider.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/typo3/sysext/backend/Classes/Tree/Pagetree/DataProvider.php b/typo3/sysext/backend/Classes/Tree/Pagetree/DataProvider.php
index 456d936ad5bf..25216c207c43 100644
--- a/typo3/sysext/backend/Classes/Tree/Pagetree/DataProvider.php
+++ b/typo3/sysext/backend/Classes/Tree/Pagetree/DataProvider.php
@@ -297,7 +297,7 @@ class DataProvider extends \TYPO3\CMS\Backend\Tree\AbstractTreeDataProvider
                     if ($isNumericSearchFilter && (int)$rootlineElement['uid'] === (int)$searchFilter) {
                         $text = str_replace('$1', $refNode->getText(), $replacement);
                     } else {
-                        $text = preg_replace('/(' . $searchFilterQuoted . ')/i', $replacement, $refNode->getText());
+                        $text = preg_replace('/(' . $searchFilterQuoted . ')/iu', $replacement, $refNode->getText());
                     }
                     $refNode->setText($text, $refNode->getTextSourceField(), $refNode->getPrefix(), $refNode->getSuffix());
                     /** @var $childCollection \TYPO3\CMS\Backend\Tree\Pagetree\PagetreeNodeCollection */
-- 
2.20.1