public static function getPrefixSuffix($expressionType = Expression::EXPRESSION_TYPE_PLAIN)
    {
        $prefix = '';
        $suffix = '';
        $patternPrefix = '';
        $patternSuffix = '';

        switch ($expressionType) {
            case Expression::EXPRESSION_TYPE_PLAIN:
                $patternPrefix = '^';
                $patternSuffix = '$';
                break;
            case Expression::EXPRESSION_TYPE_REPLACE:
                $prefix = '{{{';
                $suffix = '}}}';
                $patternPrefix = '^';
                $patternSuffix = '$';
                break;
            case Expression::EXPRESSION_TYPE_INLINE_REPLACE:
                $prefix = '{{';
                $suffix = '}}';
                break;
        }

        return [$prefix, $suffix, $patternPrefix, $patternSuffix];
    }