Experimental book page layout.

[wolnelektury.git] / src / wolnelektury / static / 2021 / css / utils / bourbon / utilities / _compact-shorthand.scss

diff --git a/src/wolnelektury/static/2021/css/utils/bourbon/utilities/_compact-shorthand.scss b/src/wolnelektury/static/2021/css/utils/bourbon/utilities/_compact-shorthand.scss
new file mode 100644 (file)
index 0000000..25f0212
--- /dev/null
+++ b/src/wolnelektury/static/2021/css/utils/bourbon/utilities/_compact-shorthand.scss
@@ -0,0 +1,39 @@
+@charset "UTF-8";
+
+// scss-lint:disable ElsePlacement
+
+/// 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;
+}