Leafo\ScssPhp\Parser::getSourcePosition PHP 메소드

    private function getSourcePosition($pos)
    {
        $low = 0;
        $high = count($this->sourcePositions);
        while ($low < $high) {
            $mid = (int) (($high + $low) / 2);
            if ($pos < $this->sourcePositions[$mid]) {
                $high = $mid - 1;
                continue;
            }
            if ($pos >= $this->sourcePositions[$mid + 1]) {
                $low = $mid + 1;
                continue;
            }
            return [$mid + 1, $pos - $this->sourcePositions[$mid]];
        }
        return [$low + 1, $pos - $this->sourcePositions[$low]];
    }