[REBOL] Re: Evaluating a maths expression in a string?

[Mat Bettinson]

Heya Larry,

>>> either not error? try[result: do str][result]["code to handle error"]

I've just realised the fatal flaw with this approach. Since I allow
user input to my evaluation string - there's nothing to stop them
typing out rebol code.

Security issue to say the least!

I suppose I could filter to make sure there are only characters that
fit a character set of "0123456789+-*/()" - that might do it?

-- 
Mat Bettinson - EuroGamer's Gaming Evangelist with a Goatee
http://www.eurogamer.net | http://www.eurogamer-network.com


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