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Re: Google SoC Proposal Ideas

 >> - (a|) is not a valid regexp. This should not be supported
 >> - (a||b) is not a valid regexp too. If it is not supported,
 >>   it is not a big problem.

> They are not valid per POSIX, but to a theoretician (theory is where
> regexes came from, after all) there is nothing wrong with either one,

Maybe. In very large regexps


form may look better/easier to understand than 


Best regards, Aleksey Cheusov.

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