Prado\I18N\core\DateFormat::getTokens PHP Метод

    protected function getTokens($pattern)
    {
        $char = null;
        $tokens = array();
        $token = null;
        $text = false;
        $pattern = preg_replace("/''/", '``````', $pattern);
        for ($i = 0; $i < strlen($pattern); $i++) {
            if ($char == null || $pattern[$i] == $char || $text) {
                $token .= $pattern[$i];
            } else {
                $tokens[] = str_replace("", "'", $token);
                $token = $pattern[$i];
            }
            if ($pattern[$i] == "'" && $text == false) {
                $text = true;
            } else {
                if ($text && $pattern[$i] == "'" && $char == "'") {
                    $text = true;
                } else {
                    if ($text && $char != "'" && $pattern[$i] == "'") {
                        $text = false;
                    }
                }
            }
            $char = $pattern[$i];
        }
        $tokens[] = $token;
        return $tokens;
    }