Fix #3531, allow more characters in \yii\grid\GridView's short array syntax for columns.

framework/CHANGELOG.md

@@ -61,6 +61,7 @@ Yii Framework 2 Change Log
 - Chg #3036: Upgraded Twitter Bootstrap to 3.1.x (qiangxue)
 - Chg #3175: InvalidCallException, InvalidParamException, UnknownMethodException are now extended from SPL BadMethodCallException (samdark)
 - Chg #3383: Added `$type` parameter to `IdentityInterface::findIdentityByAccessToken()` (qiangxue)
+- Chg #3531: \yii\grid\GridView now allows any character (except ":") in the attribute part of the shorthand syntax for columns (rawtaz)
 - Chg: Replaced `clearAll()` and `clearAllAssignments()` in `yii\rbac\ManagerInterface` with `removeAll()`, `removeAllRoles()`, `removeAllPermissions()`, `removeAllRules()` and `removeAllAssignments()` (qiangxue)
 - Chg: Added `$user` as the first parameter of `yii\rbac\Rule::execute()` (qiangxue)
 - Chg: `yii\grid\DataColumn::getDataCellValue()` visibility is now `public` to allow accessing the value from a GridView directly (cebe)

framework/grid/GridView.php

@@ -500,7 +500,7 @@ class GridView extends BaseListView
      */
     protected function createDataColumn($text)
     {
-        if (!preg_match('/^([\w\.]+)(:(\w*))?(:(.*))?$/', $text, $matches)) {
+        if (!preg_match('/^([^:]+)(:(\w*))?(:(.*))?$/', $text, $matches)) {
             throw new InvalidConfigException('The column must be specified in the format of "attribute", "attribute:format" or "attribute:format:label"');
         }