Improved search keyword highlighting

diff --git a/wcfsetup/install/files/lib/system/bbcode/KeywordHighlighter.class.php b/wcfsetup/install/files/lib/system/bbcode/KeywordHighlighter.class.php
index 90020040a38793c581b9a804fdada185c8755a8d..c9ea142c88df26a20aa1370ac365d9e7629c5e89 100644 (file)
--- a/wcfsetup/install/files/lib/system/bbcode/KeywordHighlighter.class.php
+++ b/wcfsetup/install/files/lib/system/bbcode/KeywordHighlighter.class.php
@@ -103,7 +103,7 @@ class KeywordHighlighter extends SingletonFactory {
                $keywordString = preg_replace('/(?<!\w)\*/', '', $keywordString);
                
                // remove search operators
-               $keywordString = preg_replace('/[\+\-><()~]+/', '', $keywordString);
+               $keywordString = preg_replace('/[\+\-><()~]+/', ' ', $keywordString);
                
                if (mb_substr($keywordString, 0, 1) == '"' && mb_substr($keywordString, -1) == '"') {
                        // phrases search