/**
 * Turns string into a flat list
 *
 * @param {String} $string
 * @param {String} $find   (" ") - item to find which separates substrings
 * @param {String} $ignore (",") - removes remaining string beyond item
 *
 * @return {List | False}
 */
@function flint-string-to-list($string, $find: " ", $ignore: ",") {
	@if flint-is-string($string) {

		// Use Ruby function if available
		@if $flint__use-ruby-functions {
			@return string_to_list($string, $find, $ignore);
		} @else {
			$string-list: ();
			$space-indexes: ();
			$ignore-remainder: ();
			$length: str-length($string);

			// Find ignore separator, and flint-remove remainder of string beyond that point
			@for $i from 1 through $length {
				$slice: str-slice($string, $i, $i);
				@if $slice == $ignore {
					$ignore-remainder: append($ignore-remainder, $i - 1, "comma");
				}
			}

			// Redefine string and length
			@if length($ignore-remainder) >= 1 {
				$string: str-slice($string, 1, nth($ignore-remainder, 1));
				$length: str-length($string);
			}

			// Find all spaces and their indices by looking over each character in string
			@for $i from 1 through $length {
				$slice: str-slice($string, $i, $i);
				@if $slice == $find {
					$space-indexes: append($space-indexes, $i, "comma");
				}
			}

			// Check if there are any spaces
			@if length($space-indexes) >= 1 {

				// Keep a count of number of spaces
				$count: 1;

				// Loop through each space
				@each $space in $space-indexes {

					// If is initial count, grab first substring and store in list
					@if $count == 1 {
						$matched-string: str-slice($string, 0, ($space - 1));

						@if $matched-string != "" {
						  $string-list: append($string-list, $matched-string, "comma");
						}
					// Else, add a little math to make up for the spaces to do the same
					} @else {
						$matched-string: str-slice($string, (nth($space-indexes, ($count - 1)) + 1), ($space - 1));

						@if $matched-string != "" {
						  $string-list: append($string-list, $matched-string, "comma");
						}
					}

					// Increase count
					$count: $count + 1;
				}

				// Now grab that last selector
				$flint-last-space: nth($space-indexes, length($space-indexes));
				$matched-string: str-slice($string, ($flint-last-space + 1), $length);
				$string-list: append($string-list, $matched-string, "comma");

				// Finally, return comma separated list of selectors
				@return $string-list;
			} @else {

				// Else, just return the string as a single item list
				$string-list: append($string-list, $string);

				@return $string-list;
			}
		}
	} @else {
		@return false;
	}
}