Handling attribute selectors. Only pseudo-thingies remain.

attribute_selectors.scss

-[hey  =  'ho'] {
+[hey  =  'ho'], a > b {
   blah: blah;
-  [hoo *=    "ha" ] {
+  c, [hoo *=    "ha" ] {
     bloo: bloo;
   }
 }
\ No newline at end of file

node.hpp

@@ -144,6 +144,14 @@ namespace Sass {
         }
         return result;
       }
+      else if (type == attribute_selector) {
+        string result("[");
+        result += string(children->at(0));
+        result += string(children->at(1));
+        result += string(children->at(2));
+        result += ']';
+        return result;
+      }
       else {
         return string(token);
       }

spec/basic/11_attribute_selectors/input.scss

+[hey  =  'ho'], a > b {
+  blah: blah;
+  c, [hoo *=    "ha" ] {
+    bloo: bloo;
+  }
+}
\ No newline at end of file

spec/basic/11_attribute_selectors/output.css

+[hey='ho'], a > b {
+  blah: blah; }
+  [hey='ho'] c, [hey='ho'] [hoo*="ha"], a > b c, a > b [hoo*="ha"] {
+    bloo: bloo; }