Accept "filter" RegExps without any capture groups

closes #43
fixes #46

Changes.md

@@ -4,6 +4,10 @@ This file is a manually maintained list of changes for each release. Feel free
 to add your changes here when sending pull requests. Also send corrections if
 you spot any mistakes.
 
+## HEAD
+
+* Accept "filter" RegExps without any capture groups #43 #46
+
 ## v2.1.0 (2016-12-09)
 
 * Accept a function for "filter" option #27 #31

Readme.md

@@ -73,7 +73,8 @@ can be a regular expression. In the following example, the `filter` is set to
 are required, and the resulting property name will be the name of the file
 without the ".js" extension. For example, the file "MainController.js" will
 match, and since the first capture group will contain "MainController", that
-will be the property name used.
+will be the property name used. If no capture group is used, then the entire
+match will be used as the name.
 
 ```js
 var controllers = require('require-all')({

index.js

@@ -26,7 +26,7 @@ module.exports = function requireAll(options) {
     var match = filename.match(filter);
     if (!match) return;
 
-    return match[1];
+    return match[1] || match[0];
   }
 
   var files = fs.readdirSync(dirname);

test/test.js

@@ -79,6 +79,29 @@ assert.deepEqual(controllersMap, {
   }
 });
 
+var controllersMap = requireAll({
+  dirname: __dirname + '/controllers',
+  filter: /.+Controller\.js$/
+});
+
+assert.deepEqual(controllersMap, {
+  'main-Controller.js': {
+    index: 1,
+    show: 2,
+    add: 3,
+    edit: 4
+  },
+  'other-Controller.js': {
+   index: 1,
+   show: 'nothing'
+  },
+  'sub-dir': {
+    'other-Controller.js': {
+      index: 1,
+      show: 2
+    }
+  }
+});
 
 controllersMap = requireAll({
   dirname: __dirname + '/controllers',