$foo: 'foo', bar;

// selector interpolation
#{$foo} {
	o: k;
}

// nested selector interpolation
outer {
	#{$foo} {
		o: k;
	}
}

// nested again, but with complexity (commas in the body content)
body[content="oh, look"] {
	#{$foo} {
		o: k;
	}
}

// interpolation quoted
.foo-#{"bar"} {
	o: k
}

// placeholder interpolation
$bar: bar;
%#{$bar} {
	o: k
}
.bar {
	@extend %bar;
}

// string interpolation
foo#{1 + 1}bar {
	o: k
}

// interpolation in a function call
nex3_is_weird {
	flabnabbit: flabnabbit('#{1 + 'foo'}');
}

$media: screen;
$feature: -webkit-min-device-pixel-ratio;
$value: 1.5;

@media #{$media} and ($feature: $value) {
  webkit-only {
  	color: green;
  }
}