| aggregator_form_category_submit | modules/aggregator/aggregator.admin.inc | Process aggregator_form_category form submissions. |
| aggregator_save_category | modules/aggregator/aggregator.module | Add/edit/delete aggregator categories. |
| arg | includes/path.inc | Return a component of the current Drupal path. |
| drupal_set_message | includes/bootstrap.inc | Set a message which reflects the status of the performed operation. |
| l | includes/common.inc | Format an internal Drupal link. |
| t | includes/common.inc | Translate strings to the page language or a given language. |
| watchdog | includes/bootstrap.inc | Log a system message. |
