@function _radial-gradient-parser($image) {
    $image: unquote($image);
    $gradients: ();
    $start: str-index($image, "(");
    $end: str-index($image, ",");
    $first-val: str-slice($image, $start + 1, $end - 1);

    $prefix: str-slice($image, 1, $start);
    $suffix: str-slice($image, $end, str-length($image));

    $is-spec-syntax: str-index($first-val, "at");

    @if $is-spec-syntax and $is-spec-syntax > 1 {
        $keyword: str-slice($first-val, 1, $is-spec-syntax - 2);
        $pos: str-slice($first-val, $is-spec-syntax + 3, str-length($first-val));
        $pos: append($pos, $keyword, comma);

        $gradients: (
            webkit-image: -webkit- + $prefix + $pos + $suffix,
            spec-image: $image
        );
    } @else if $is-spec-syntax == 1 {
        $pos: str-slice($first-val, $is-spec-syntax + 3, str-length($first-val));

        $gradients: (
            webkit-image: -webkit- + $prefix + $pos + $suffix,
            spec-image: $image
        );
    } @else if str-index($image, "cover") or str-index($image, "contain") {
        @warn "Radial-gradient needs to be updated to conform to latest spec.";

        $gradients: (
            webkit-image: null,
            spec-image: $image
        );
    } @else {
        $gradients: (
            webkit-image: -webkit- + $image,
            spec-image: $image
        );
    }

    @return $gradients;
}