support matching "extended" punctuation characters

Author: jonschlinkert

index.js

@@ -7,6 +7,8 @@
 
 'use strict';
 
-module.exports = function() {
-  return /^[!"#$%&'()*+,./:;<=>?@\^_`{|}~-]+$/;
+module.exports = function(extended) {
+  return extended === true
+    ? /^[\‒\–\—\―|$&~=\\\/⁄@+*!?({[\]})<>‹›«».;:^‘’“”'",،、`·\•†‡°″¡¿※#№÷×%‰\−‱¶′‴§_‖¦]+$/
+    : /^[!"#$%&'()*+,./:;<=>?@\^_`{|}~\-]+$/;
 };

test.js

@@ -22,4 +22,9 @@ describe('punctuation-regex', function() {
     assert(regex().test('/'));
     assert(regex().test('*'));
   });
+
+  it('should match extended punctuation characters', function () {
+    assert(!regex().test('‘'));
+    assert(regex(true).test('‘'));
+  });
 });