Fixing Issue #6 - Error thrown on .query(true) if query was null

Author: rodneyrehm

README.md

@@ -166,6 +166,7 @@ URI.js is published under the [MIT license](http://www.opensource.org/licenses/m
 
 * added .subdomain() convenience accessor
 * improved internal deferred build handling
+* fixed thrown Error for `URI("http://example.org").query(true)` (Issue #6)
 
 ### 1.2.0 ###
 

src/URI.js

@@ -240,9 +240,17 @@ URI.parseAuthority = function(string, parts) {
     return URI.parseHost(string, parts);
 };
 URI.parseQuery = function(string) {
+    if (!string) {
+        return {};
+    }
+    
     // throw out the funky business - "?"[name"="value"&"]+
     string = string.replace(/&+/g, '&').replace(/^\?*&*|&+$/g, '');
-
+    
+    if (!string) {
+        return {};
+    }
+    
     var items = {},
         splits = string.split('&'),
         length = splits.length;

test/test.js

@@ -184,6 +184,12 @@ test("query", function() {
     u.query('?foo');
     equal(u.query(), "foo", "search: ''");
     equal(u.search(), "?foo", "search: '' - query");
+    
+    // parsing empty query
+    var t;
+    t = u.query('?').query(true);
+    t = u.query('').query(true);
+    t = u.href("http://example.org").query(true);
 });
 test("fragment", function() { 
     var u = new URI("http://example.org/foo.html");