support RegExp in Lib.pushUnique

Author: alexcjohnson

src/lib/index.js

@@ -17,6 +17,7 @@ lib.nestedProperty = require('./nested_property');
 lib.isPlainObject = require('./is_plain_object');
 lib.isArray = require('./is_array');
 lib.mod = require('./mod');
+lib.toLogRange = require('./to_log_range');
 
 var coerceModule = require('./coerce');
 lib.valObjects = coerceModule.valObjects;
@@ -349,7 +350,17 @@ lib.noneOrAll = function(containerIn, containerOut, attrList) {
  *
  */
 lib.pushUnique = function(array, item) {
-    if(item && array.indexOf(item) === -1) array.push(item);
+    if(item instanceof RegExp) {
+        var itemStr = item.toString(),
+            i;
+        for(i = 0; i < array.length; i++) {
+            if(array[i] instanceof RegExp && array[i].toString() === itemStr) {
+                return array;
+            }
+        }
+        array.push(item);
+    }
+    else if(item && array.indexOf(item) === -1) array.push(item);
 
     return array;
 };