assets/sass/bourbon/bourbon/utilities/_compact-shorthand.scss

   1 @charset "UTF-8";
   2
   3 /// Transforms shorthand to its shortest possible form.
   4 ///
   5 /// @argument {list} $values
   6 ///   List of directional values.
   7 ///
   8 /// @example scss
   9 ///   $values: _compact-shorthand(10px 20px 10px 20px);
  10 ///
  11 ///   // Output
  12 ///   $values: 10px 20px;
  13 ///
  14 /// @return {list}
  15 ///
  16 /// @access private
  17
  18 @function _compact-shorthand($values) {
  19   $output: null;
  20
  21   $a: nth($values, 1);
  22   $b: if(length($values) < 2, $a, nth($values, 2));
  23   $c: if(length($values) < 3, $a, nth($values, 3));
  24   $d: if(length($values) < 2, $a, nth($values, if(length($values) < 4, 2, 4)));
  25
  26   @if $a == 0 { $a: 0; }
  27   @if $b == 0 { $b: 0; }
  28   @if $c == 0 { $c: 0; }
  29   @if $d == 0 { $d: 0; }
  30
  31   @if $a == $b and $a == $c and $a == $d {
  32     $output: $a;
  33   } @else if $a == $c and $b == $d {
  34     $output: $a $b;
  35   } @else if $b == $d {
  36     $output: $a $b $c;
  37   } @else {
  38     $output: $a $b $c $d;
  39   }
  40
  41   @return $output;
  42 }