[MlMt] match "contains" condition on whole word only?

[Shoshanna Green]

I've got a check-before-sending condition set up in 
messageVerifications.plist that's meant to keep me from sending messages 
related to the group I'm on the board of from any address other than the 
one I use for board business. The relevant condition is set up as

	conditions = "(subject ~ 'board' or #unquoted ~[a] 'board')";

in other words, either the subject or the unquoted body text contains 
the word "board."

But this condition is also triggered whenever I use a word like 
"keyboard" or "boardwalk" or "onboarding." Is there a way to restrict it 
to whole-word matching?

Shoshanna Green
shoshannag at gmail.com