Using the transform AttributeResolver

[Cantor, Scott]

You might try this:

(CN=([^,])+)(,.+)*

I doubt that's the most elegant way, and I never know what the XML
parser's regex engine really handles, but I would think something as basic
as a negated character set would be handled.

Ian always says solving a problem with a regex leaves you with two
problems, so solving a problem with one of my regex's leaves you with
three.

-- Scott