sass/susy/language/susy/_rows.scss in susy-2.0.0.alpha.2 vs sass/susy/language/susy/_rows.scss in susy-2.0.0.alpha.3

@@ -1,76 +1,104 @@
 // Row Start & End
 // ===============
 
+// Row
+// ---
 // Apply to any layout element that should force a new layout row.
+// - [$flow]  : ltr | rtl
 @mixin row(
   $flow: $flow
 ) {
-  $clear: $flow;
-
-  @if $flow == ltr or $flow == rtl {
-    $clear: from($flow);
-  }
-
-  clear: $clear;
+  @include pie-clearfix;
+  clear: from($flow);
 }
 
+// Unrow
+// -----
 // Cancel the row() effect, e.g. when using media queries.
+// - [$flow]  : ltr | rtl
 @mixin unrow {
   clear: none;
+  &:after {
+    content: none;
+    display: inline;
+    clear: none;
+  }
 }
 
-// First item
-// ----------
-
+// First
+// -----
+// - [$flow]  : ltr | rtl
 @mixin first(
   $flow: $flow
 ) {
   @include float-first($flow);
 }
 
+// Alpha
+// -----
+// - [$flow]  : ltr | rtl
 @mixin alpha(
   $flow: $flow
 ) {
   @include float-first($flow);
 }
 
+// Nth-First
+// ---------
+// - [$value]   : first | last | only | <math>
+// - [$type]    : child | last-child | of-type | last-of-type
 @mixin nth-first(
   $value: first,
   $type: child
 ) {
-  &:#{format-nth($value,$type)} { @include first($flow); }
+  &:#{format-nth($value,$type)} { @include first(); }
 }
 
+// Nth-Alpha
+// ---------
+// - [$value]   : first | last | only | <math>
+// - [$type]    : child | last-child | of-type | last-of-type
 @mixin nth-alpha(
   $value: first,
   $type: child
 ) {
   @include nth-first($value, $type);
 }
 
-// Last item
-// ---------
-
+// Last
+// ----
+// - [$flow]  : ltr | rtl
 @mixin last(
   $flow: $flow
 ) {
   @include float-last($flow);
 }
 
+// Omega
+// -----
+// - [$flow]  : ltr | rtl
 @mixin omega(
   $flow: $flow
 ) {
   @include float-last($flow);
 }
 
+// Nth-Last
+// --------
+// - [$value]   : first | last | only | <math>
+// - [$type]    : child | last-child | of-type | last-of-type
 @mixin nth-last(
   $value: last,
   $type: child
 ) {
-  &:#{format-nth($value,$type)} { @include last($flow); }
+  &:#{format-nth($value,$type)} { @include last(); }
 }
 
+// Nth-Omega
+// ---------
+// - [$value]   : first | last | only | <math>
+// - [$type]    : child | last-child | of-type | last-of-type
 @mixin nth-omega(
   $value: last,
   $type: child
 ) {
   @include nth-last($value, $type);