I think you're looking for #px"\\p{L}".
See the "\p" <atom> production and the <category> non-terminal in
http://docs.racket-lang.org/reference/regexp.html#(part._regexp-syntax)
At Sat, 04 Aug 2012 14:45:30 -0700, Charles Hixson wrote:
> Are there any unicode regular expression character classes?
>
> I'm hoping for something similar to [:alpha:], etc. that are based
> around, say, the first letter of the unicode character classification.
> I *can* do what I want by disassembling strings by hand and using tests
> based on char-general-category, but a regular expression would (should?)
> be much neater.
>
> (I know that these aren't mentioned in the documentation, but it just
> says that it's talking about the "Frequently Used Character Classes",
> not that there aren't any others.)
>
> --
> Charles Hixson
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