Regex to export valid filenames

Hi, I'm fairly new to using regex in mp3tag.

I'm trying to bulk export the cover art to all of my albums to directory using the 'quick action' -> 'export cover to file' 'c:\Covers\%artist%-%album%'

This works great unless there are special characters in the album name (i.e. : or \ etc.).

What regex expression can I use to remove (or replace) any instance of a non-alphanumeric character in the album name? I need to do this without retagging the original files?

I'd like to replace %album% = 'Star Wars - Episode 1: The Phantom Menace'
with 'Star Wars - Episode 1 The Phantom Menace'
or 'Star Wars - Episode 1- The Phantom Menace'

Thanks

$replace(%album%,:,,,)
or
$replace(%album%,:,-,,-)

! This syntax only works since 2.37i

http://help.mp3tag.de/en/main_scripting.html

Thank a lot. That worked great. I must have overlooked the scripting page.

I found what will eliminate all invalid characters is:
$validate(%artist% - %album%,-)