Bad word censor in Java/AspectJ

Hey /prog/ can you help me out with this?

I am trying to make a filter for bad words using java/aspectj. Whenever a method has a System.out.println which includes a bad word I want it to be replaced with an equal amount of #s. For example System.out.println("You are a damn shiteater") should print out "You are a #### ####eater". All bad words are stored as strings on a list which I can access with getBadWords(). It shouldn't be case-sensitive either. I am really stuck with this one so I hope you can help.

>>23
parse each individual word, eg. "shiteater" becomes "shit-eat-er", "assbandit" becomes "ass-bandit", and "assailant" becomes "assail-ant". after that it should be easy.
or just include things like "shiteater" and "assbandit" in your list of bad words.