[WS] Beatport.com by stevehero [Release, Single Track & Artwork tagging]

Hey,

i have customized my "Beatport by &stevehero#RELEASE Direct by &BEATPORT_RELEASE_ID.src" very nice, but there's something I'm not able to code:

The artist hast to be "artist, mixartist" but I'm not able to code this section. For now it looks like that:

outputto "Artist"
            sayregexp "(?<=<Artist>)[^<]+" ", " "</track>"
            say ", "
            sayregexp "(?<=<Remixer>)[^<]+" ", " "</track>"

This works fine, BUT if there's no mixartist (f.e. "Original Mix") then there is always this comma after the artist.

Can someone help me?!

Greez, skrippi

PS:
For the "Beatport by &stevehero#SINGLE TRACK Direct by BEATPORT_TRACK_ID.src" it works very fine if I only add this to section "costumization starts":

# ARTIST
    outputto "artist"
    say ", "
    sayoutput "Mixartist"

But here is the same problem with the comma, if there's no Mixartist...

EDIT:
Maybe something like this:
sayregexp "(?<=[]|[])[^<]+" ", " ""

But this only works a half too...