From: Jakub Pawlowicz <contact@jakubpawlowicz.com>
Date: Mon, 6 Oct 2014 11:17:03 +0000 (+0100)
Subject: Speeds up minifying zero values.
X-Git-Url: https://git.ndcode.org/public/gitweb.cgi?a=commitdiff_plain;h=89b00d3c8c16a365bc0315299bf96fea3bcb39ab;p=clean-css.git

Speeds up minifying zero values.

* Checks if zeros are present in property value before proceeding.
---

diff --git a/lib/selectors/optimizers/simple.js b/lib/selectors/optimizers/simple.js
index fda627ec..5383da63 100644
--- a/lib/selectors/optimizers/simple.js
+++ b/lib/selectors/optimizers/simple.js
@@ -89,6 +89,9 @@ var valueMinifiers = {
 };
 
 function zeroMinifier(_, value) {
+  if (value.indexOf('0') == -1)
+    return value;
+
   return value
     .replace(/\-0$/g, '0')
     .replace(/\-0([^\.])/g, '0$1')
@@ -120,6 +123,9 @@ function unitMinifier(_, value, unitsRegexp) {
 }
 
 function multipleZerosMinifier(property, value) {
+  if (value.indexOf('0 0 0 0') == -1)
+    return value;
+
   if (property.indexOf('box-shadow') > -1)
     return value == '0 0 0 0' ? '0 0' : value;