Index: modules/user/user.module
===================================================================
RCS file: /cvs/drupal/drupal/modules/user/user.module,v
retrieving revision 1.804
diff -u -r1.804 user.module
--- modules/user/user.module	23 Jun 2007 13:15:49 -0000	1.804
+++ modules/user/user.module	23 Jun 2007 21:11:44 -0000
@@ -512,12 +512,21 @@
       }
     case 'search':
       if (user_access('access user profiles')) {
+        $admin = user_access('administer users'); 	
         $find = array();
         // Replace wildcards with MySQL/PostgreSQL wildcards.
         $keys = preg_replace('!\*+!', '%', $keys);
-        $result = pager_query("SELECT uid, name FROM {users} WHERE LOWER(name) LIKE LOWER('%%%s%%')", 15, 0, NULL, $keys);
-        while ($account = db_fetch_object($result)) {
-          $find[] = array('title' => $account->name, 'link' => url('user/'. $account->uid, array('absolute' => TRUE)));
+        if ($admin) {
+          $result = pager_query("SELECT name, uid, mail FROM {users} WHERE LOWER(name) LIKE LOWER('%%%s%%') OR LOWER(mail) LIKE LOWER('%%%s%%')", 15, 0, NULL, $keys, $keys);
+          while ($account = db_fetch_object($result)) {
+            $find[] = array('title' => $account->name .' ('. $account->mail .')', 'link' => url('user/'. $account->uid, array('absolute' => TRUE)));  
+          }
+        }
+        else {
+          $result = pager_query("SELECT name, uid FROM {users} WHERE LOWER(name) LIKE LOWER('%%%s%%')", 15, 0, NULL, $keys); 
+          while ($account = db_fetch_object($result)) {
+            $find[] = array('title' => $account->name, 'link' => url('user/'. $account->uid, array('absolute' => TRUE)));  
+          }
         }
         return $find;
       }
@@ -2777,7 +2786,12 @@
       <li>Authenticated user: this role is automatically granted to all logged in users.</li>
       </ul>', array('@permissions' => url('admin/user/access')));
     case 'admin/user/search':
-      return '<p>'. t('Enter a simple pattern ("*" may be used as a wildcard match) to search for a username. For example, one may search for "br" and Drupal might return "brian", "brad", and "brenda".') .'</p>';
+      if (user_access('administer users')) {
+        return '<p>'. t('Enter a simple pattern ("*" may be used as a wildcard match) to search for a username or e-mail address. For example, one may search for "br" and Drupal might return "brian", "brad", and "brenda@example.com".') .'</p>';
+      }
+      else {
+        return '<p>'. t('Enter a simple pattern ("*" may be used as a wildcard match) to search for a username. For example, one may search for "br" and Drupal might return "brian", "brad", and "brenda".') .'</p>';
+      }
   }
 }