Fixed: regression from 1.2.5 on calc() on multiple lines

Author: MoOx

CHANGELOG.md

@@ -1,3 +1,6 @@
+- Fixed: regression from 1.2.5 on calc() on multiple lines
+  (@MoOx)
+
 # 1.2.5 - 2016-08-20
 
 - Fixed: security issue due to the usage of ``eval()``.

index.js

@@ -32,9 +32,13 @@ function reduceCSSCalc(value, decimalPrecision) {
   stack = 0
   decimalPrecision = Math.pow(10, decimalPrecision === undefined ? 5 : decimalPrecision)
 
-  // CSS allow to omit 0 for 0.* values,
-  // but math-expression-evaluator does not
-  value = value.replace(/\s(\.[0-9])/g, " 0$1")
+  value = value
+    // CSS allow to omit 0 for 0.* values,
+    // but math-expression-evaluator does not
+    .replace(/\s(\.[0-9])/g, " 0$1")
+
+    // allow calc() on multiple lines
+    .replace(/\n+/g, " ")
 
   /**
    * Evaluates an expression

test/index.js

@@ -117,3 +117,8 @@ test("non-lowercase units", function(t) {
 
   t.end()
 })
+
+test("should handle calc() on multiple lines", function(t) {
+  t.equal(reduceCSSCalc("calc(\n\n  1 +\n 1\n\n)"), "2", "addition")
+  t.end()
+})