TYPO3 Core

We use utf-8 for russian and ukrainian letters. Word splitting and highlight (in search results) is not working in such case.

In pi/class.tx_indexedsearch.php:markupSWpartsOfString we have

// Split and combine:
$parts = preg_split('/'.$regExString.'/i', ' '.$str.' ', 20000, PREG_SPLIT_DELIM_CAPTURE);

i think we should add one regexp option to that splitting (it fixes such wrong behaviour)

// Split and combine:
$parts = preg_split('/'.$regExString.'/iu', ' '.$str.' ', 20000, PREG_SPLIT_DELIM_CAPTURE);

(issue imported from #M16525)