I would like to know if it is possible to make ICA ignore some charaters in text files. There are some particular character sequences which should be treated as empty characters for my purposes: @,#,%,^^. These chracters can be everywhere: in the middle of a word, in the end of a sentence and so on, so just putting them in a Dictionary is not an option. Let's say it could be "#cat", "ca#t", "cat^^". So, how can I tell to ICA that it should see only "cat" here?