Export configuration for multiple artists

[Florian]

@veggera

On the last artist "Nick Devon" as it's last there not the comma should appear.

Inspired by Detlev's work, it's possible to collect all artists in a variable:

$filename(txt,UTF-8)
$loop(%ALBUM%)$puts(ListOfArtists,)$loop(%ARTIST%)$loop(%ALBUM%)$puts(ListOfArtists,$get(ListOfArtists)%ARTIST%', ')$loopend()$loopend()
$loop(%ALBUM%)$puts(ListOfArtists,$trim($regexp($get(ListOfArtists),'(?:(?<=,)|(?<=\A)|(?<=^))\s?([^,]*),(?=.*?(?<=,)\s?\1(?=,|\Z|$))(?#remove dups from comma- or comma+space- delimited list)',),', '))$loopend()
$loop(%ALBUM%,1)%ALBUM%
  $get(ListOfArtists)
$loopend()$loopend()

The same needs to be done for the %MIXARTIST% then. It's kinda magic — but fun