@charset “UTF-8”;

/// Transforms shorthand to its shortest possible form. /// /// @argument {list} $values /// List of directional values. /// /// @example scss /// $values: _compact-shorthand(10px 20px 10px 20px); /// /// // Output /// $values: 10px 20px; /// /// @return {list} /// /// @access private

@function _compact-shorthand($values) {

$output: null;

$a: nth($values, 1);
$b: if(length($values) < 2, $a, nth($values, 2));
$c: if(length($values) < 3, $a, nth($values, 3));
$d: if(length($values) < 2, $a, nth($values, if(length($values) < 4, 2, 4)));

@if $a == 0 { $a: 0; }
@if $b == 0 { $b: 0; }
@if $c == 0 { $c: 0; }
@if $d == 0 { $d: 0; }

@if $a == $b and $a == $c and $a == $d {
  $output: $a;
} @else if $a == $c and $b == $d {
  $output: $a $b;
} @else if $b == $d {
  $output: $a $b $c;
} @else {
  $output: $a $b $c $d;
}

@return $output;

}