I need to match French VAT numbers. They are of the form: 
FRxxdddddddd

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where x is a digit, or an uppercase letter, except for I or O, and d is a digit. (I tr string to upper case b4 reg exp).

I matched it as: 

/^FR[A-HJ-NP-Z0-9]{2}\d{8}$/

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but I think this looks clumsy.

Does anyone have a more efficient way to match "all letters except I and O"???

In reply to French VAT codes reg exp - more efficient way? by cLive ;-)

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