//************************************************************************//
// Helper function for linear/radial-gradient-parsers.
// Source: http://sassmeister.com/gist/9647408
//************************************************************************//
@function _str-to-num($string) {
	// Matrices
	$strings: '0' '1' '2' '3' '4' '5' '6' '7' '8' '9';
	$numbers: 0 1 2 3 4 5 6 7 8 9;

	// Result
	$result: 0;
	$divider: 0;
	$minus: false;

	// Looping through all characters
	@for $i from 1 through str-length($string) {
		$character: str-slice($string, $i, $i);
		$index: index($strings, $character);

		@if $character == '-' {
			$minus: true;
		} @else if $character == '.' {
			$divider: 1;
		} @else {
			@if not $index {
				$result: if($minus, $result * -1, $result);
				@return _convert-units($result, str-slice($string, $i));
			}

			$number: nth($numbers, $index);

			@if $divider == 0 {
				$result: $result * 10;
			} @else {
				// Move the decimal dot to the left
				$divider: $divider * 10;
				$number: $number / $divider;
			}

			$result: $result + $number;
		}
	}
	@return if($minus, $result * -1, $result);
}
