Hi, monks

I have a list which contains about 5M records and to uniquely identify them, I am using a 7-char CODE system. these codes are viewable from the user side, so it's important the CODEs do NOT contain any sub-strings which have evil meaning, i.e. K8KKKL9, 1GTSH1T, et.al. in other word, I am trying to prevent (or limit if not possible to prevent) such English evil words to be shown in my CODE system.

My questions is: are there any Perl modules to handle similar situation? or any web links or searchable terminologies to help analyze such situation?

thanks in advance

lihao

UPDATE Sorry, guys, I did NOT describe my question well in my original post. the following are something I forgot:

• the 7-code system have: first two characters for identifying events, 5-char for 5M UNIQUE records
• I've actually removed all vowels aoieu from the CODE system (case insensitive). Just some people do NOT want to see a string like KKK which I have not yet covered
• The original requirement from my boss is that the CODE should be as short as possible
• Also, we need to consider OCR discernable issue and add certain randomness to the generated CODE.
• the list is not fixed and we have to expect potential growth in the next few years

Thank again to all who replied

lihao

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