///
/// Joins all elements of list with passed glue
///
/// @access private
///
/// @param {List}   $list
/// @param {String} $glue
/// @param {Bool}   $is-nested
///
/// @return {String}
///
/// @group Internal Functions
///
@function flint-list-to-str($list, $glue: "", $is-nested: false) {
	@if flint-is-string($list) {
		$list: ($list,);
	}

	// Use Ruby function if available
	@if $flint-use-ruby-functions {
		@return flint_ruby_list_to_str($list, $glue);
	}

	$result: "";
	$length: length($list);

	@for $i from 1 through $length {
		$item: nth($list, $i);

		@if flint-is-list($item) {
			$result: $result + flint-list-to-str($item, $glue, true);
		} @else {
			$result: if($i != length($list) or $is-nested, $result + $item + $glue, $result + $item);
		}
	}

	@return quote($result);
}