private function _checkProhibitedKeywordsRegex($token) {
		if ($this->_isActive('checkProhibitedKeywordsRegex')) {

			foreach ($this->_prohibitedKeywordsRegex as $pattern) {

				preg_match_all($pattern, $token->text, $matches);
				$matches = $matches[0];
				if (!empty($matches)) {
					foreach ($matches as $key => $value) {
						$msg = $this->_getMessage('PROHIBITED_KEYWORD_REGEX', $value);
						$this->_writeError('checkProhibitedKeywordsRegex', $msg);
					}
				}
			}
		}
	}