I want to use a comma in my regular expression, so I tried this:
$regexp($meta(artist),^(.), (.)$,$1, and $2)
It supposed to take multiple artist fields and produce something like 'Artist 1, Artist 2, and Artist 3'
But I get the following error:
REGEXP ERROR: Regular expression
Escape sequence terminated prematurely. The error occured while parsing the regular expression: '^(.*)>>>HERE>>>'.
What am I doing wrong...?
(P.S. A teeny bug: it really does say 'occured', but it should say 'occurred')