Case insensitive regex for MATCH - possible?

[Sebastian Arcus]

Hello list. I might be missing something really obvious, but is it 
possible to do case insensitive matching with regex's in Monit? There 
doesn't seem to be anything about it in the docs, and bizarrely nothing 
relevant when searching in Google (to do strictly with regex's in 
Monit). I've tried something like:

IF MATCH "(?i)banned|blacklist" THEN ALERT

or

IF MATCH "/banned|blacklist/?i" THEN ALERT

Monit doesn't seem to like either. I've tried various ways suggested 
online for Javascript, Python etc. regular expressions - but so far I 
haven't been able to figure the right syntax. Any hints please?