The script file must obey the syntax of the S-Lang language. However, macros can be defined by using a S-Lang script. On the other hand, the internal function bob moves to the top of the list but it does not refresh the groups. Here is another macro that may be used in article mode. It performs a regular expression search for subjects.
Many people find the use of prefix arguments somewhat strange.
Most likely one will want to pipe the article to a shell script for further processing. Some of the built-in keyboard functions will prompt for a string. This hook allows the user to set variables on a server by server basis. This hook is called after checking for news and immediately before entering the main keyboard loop. When called, group mode will be active.