Nesting Sass maps

_nesting-maps.scss

// Sass 3.3

$example: (
    foo: (
        x: 100,
        y: 200
    ),
    bar: (
        x: 150,
        y: 250
    ),
    foobar: (
        x: 320,
        y: 420
    )
);

@function map-deep-get($map, $key, $value) {
    @return map-get(map-get($map, $key), $value);
}

$bar-x: map-deep-get($example, bar, x);

.foobar {
    position: absolute;
    top: map-deep-get($example, foobar, y);
    left: map-deep-get($example, foobar, x);
}