SassList::__construct PHP Method

    public function __construct($value, $separator = 'auto')
    {
        if (is_array($value)) {
            $this->value = $value;
            $this->separator = $separator == 'auto' ? ', ' : $separator;
        } elseif ($value == '()') {
            $this->value = array();
            $this->separator = $separator == 'auto' ? ', ' : $separator;
        } elseif (list($list, $separator) = $this->_parse_list($value, $separator, true, SassScriptParser::$context)) {
            $this->value = $list;
            $this->separator = $separator == ',' ? ', ' : ' ';
        } else {
            throw new SassListException('Invalid SassList', SassScriptParser::$context->node);
        }
    }