Beans_Lessc::zipSetArgs PHP Method

    protected function zipSetArgs($args, $orderedValues, $keywordValues)
    {
        $assignedValues = array();
        $i = 0;
        foreach ($args as $a) {
            if ($a[0] == "arg") {
                if (isset($keywordValues[$a[1]])) {
                    // has keyword arg
                    $value = $keywordValues[$a[1]];
                } elseif (isset($orderedValues[$i])) {
                    // has ordered arg
                    $value = $orderedValues[$i];
                    $i++;
                } elseif (isset($a[2])) {
                    // has default value
                    $value = $a[2];
                } else {
                    $this->throwError("Failed to assign arg " . $a[1]);
                    $value = null;
                    // :(
                }
                $value = $this->reduce($value);
                $this->set($a[1], $value);
                $assignedValues[] = $value;
            } else {
                // a lit
                $i++;
            }
        }
        // check for a rest
        $last = end($args);
        if ($last[0] == "rest") {
            $rest = array_slice($orderedValues, count($args) - 1);
            $this->set($last[1], $this->reduce(array("list", " ", $rest)));
        }
        // wow is this the only true use of PHP's + operator for arrays?
        $this->env->arguments = $assignedValues + $orderedValues;
    }