@function bc-util-list-join($list, $separator, $slice-start: 1, $slice-end: 0) {
  $result: "";

  @if type-of($list) == list {
    $length: length($list);

    @if $slice-end == false {
      $slice-end: length($list);
    }

    @if $slice-start < 0 {
      $slice-start: length($list) + $slice-start + 1;
    }

    @if $slice-end < 0 {
      $slice-end: length($list) + $slice-end + 1;
    }

    @for $i from $slice-start through $length - $slice-end {
      @if $result == "" {
        $result: nth($list, $i);
      }

      @else {
        $result: $result + "#{$separator}" + nth($list, $i);
      }
    }
  }

  @else {
    $result: $list;
  }

  @return $result;
}