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   Re: [xml-dev] Fun with regular expressions

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Max Chappell wrote:
> Another piece of advice is to use nested brackets such as: 
> "[a-zA-Z-[ABC]]" (Use any letters except AB or C).
> Along these lines I've tried:
> "[.-[NaN]]*" - far from working...

Does something like (.-[Na])+ work? I'm unsure that . is a proper 
character class that's subject to substraction.

> This does not allow .00009 for example, so we'll have to make the reg 
> exp even more complicated.

I believe I have one somewhere that's close to being good and that could 
exclude NaN. However it's several lines long (when wrapped) and last 
year it tended to crash validators. I can dig it up if you don't find a 
pleasant solution.

Robin Berjon


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