From d76ec4ce94c0429d68fc76076e4d3a6ba07cc7b3 Mon Sep 17 00:00:00 2001
From: GoalSmashers <jakub@goalsmashers.com>
Date: Mon, 10 Jun 2013 14:17:21 +0200
Subject: [PATCH] Fixes #112 - collapsing box-shadow's zeros.

---
 lib/clean.js      | 1 +
 test/unit-test.js | 8 ++++++++
 2 files changed, 9 insertions(+)

diff --git a/lib/clean.js b/lib/clean.js
index bface73d..eab99753 100644
--- a/lib/clean.js
+++ b/lib/clean.js
@@ -250,6 +250,7 @@ var CleanCSS = {
     replace(/(background):none([;}])/g, '$1:0$2');
 
     // multiple zeros into one
+    replace(/box-shadow:0 0 0 0([^\.])/g, 'box-shadow:0 0$1');
     replace(/:0 0 0 0([^\.])/g, ':0$1');
     replace(/([: ,=\-])0\.(\d)/g, '$1.$2');
 
diff --git a/test/unit-test.js b/test/unit-test.js
index 8d870c16..2505cf93 100644
--- a/test/unit-test.js
+++ b/test/unit-test.js
@@ -313,6 +313,14 @@ vows.describe('clean-units').addBatch({
     'rect zeros #6': [
       'div{clip:rect(0px 0px 0px 10px)}',
       'div{clip:rect(0 0 0 10px)}'
+    ],
+    'box shadow zeros': [
+      'a{box-shadow:0 0 0 0}',
+      'a{box-shadow:0 0}'
+    ],
+    'prefixed box shadow zeros': [
+      'a{-webkit-box-shadow:0 0 0 0; -moz-box-shadow:0 0 0 0}',
+      'a{-webkit-box-shadow:0 0;-moz-box-shadow:0 0}'
     ]
   }),
   'shorthands': cssContext({
-- 
2.34.1