[Kc] fun regex particle

[Ivan Greene]

Match some choice 3 letter words that start with D, O, F, J, A or M?

"David Nicol" <davidnicol at gmail.com> wrote:

>Quiz: what does this do, and can the letters be rearranged for more fun?
>
>([DOFJAM][youngerblatvcop]{2})
>
>
>
>-- 
>"In the case of an infinite collection, the question of the existence
>of a choice function is problematic"
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