private function _createBadWordTable()
    {
        // get l10n configuration for strings
        $config = $this->getConfiguration();

        // create empty table
        $this->_badWordTable = [];

        // split list of bad words into array ...
        $badWords = explode(',', $config->words->badwords);

        // ... and process
        foreach ($badWords as $badWord) {
            $this->_badWordTable[] = trim($badWord);
        }
    }