[rules-users] checking string property for key-words

Hello, I'm working on module checking and processing incoming mails. I'd like to use drools expert to check the mails and determine the target folder for the further processing. So one of the first things is to check the subject of mail for keywords. I'm using decision tables. The first shot was to use regular expressions for this. CONDITION ACTION javax.mail.Message subject matches "$1" insert(new String("$1")); .* [Ss]pam .* Spam .* Order .* Orders/inbox .* Activity .* Workflow/inbox This works so far, but I'm not totally happy with this regular expressions. I'd prefer to see only the key-word in the cells. CONDITION ACTION javax.mail.Message ??????????? insert(new String("$1")); spam Spam Spam Spam Order Orders/inbox Activity Workflow/inbox But what to fill in for the ????? ?