haha, you got me. I was already trying around with "" and "" before you edited your post.
I don't understand CR and LF
It's for this here:
Barcode automatisch einfügen
instead of ", " in
sayregexp "(?<=<span class="type">Barcode:).*?(?=)" ", "
i would like to have a linebreak as seperator.
but it looks like the seperator can't be a regular expression or a mp3tag scripting $function.
"\\" would work to create a multivalue field, but I think there is no code which creates a linebreak like \\ creates a "mulitvalue tag field break"