[boost] Re: regexes matching empty strings

From: Michael Goldshteyn (mgoldshteyn_at_[hidden])
Date: 2005-03-03 16:39:46

Interesting, I guess I hadn't thought of writing something like "abc|" 
simple as (?:abc)?

Thanks

Mike

"John Maddock" <john_at_[hidden]> wrote in message 
news:05c001c515dd$8b7232c0$3ef20352_at_fuji...
>> "(?:)|abc" and "^$|abc" seem to get around this deficiency, but I am 
>> wondering why it is there in the first place.
>
> Remember also that:
>
> |x is the same as x??
>
> x| is the same as x?
>
> John.
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