Re: [boost] [regex] specify parenthesis

From: Lorenzo Bettini (bettini_at_[hidden])
Date: 2007-05-01 11:37:50

Paul Giaccone wrote:
> Lorenzo Bettini wrote:
>> John Maddock wrote:
>>   
>>> Lorenzo Bettini wrote:
>>>     
>>>> Hi
>>>>
>>>> is there a way to specify open and closed parenthesis with a
>>>> regular expression syntax?  For instance, if I'd want to specify a
>>>> single regular expression that matches both (foo) and [foo] and {foo}?
>>>>       
>>> Probably not what you wanted, but:
>>>
>>> [(\[{]foo[)\]}]
>>>
>>>     
>> but this would match also {foo] which would wrong...
>>   
> 
> You could use Spirit, of course, using a function that recorded which 
> type of bracket (pedantic point: "(", "), "[", "]", "{" and "}" are all 
> brackets, but only "(" and ")" are parentheses) was found first and 

yes, sorry: in Italian they're all called parentheses :-)

> I'd suggest seeing if anyone else comes up with a solution using regex, 
> and writing your own simple parser by hand (not using Spirit) if not.

I heard about Spirit, and I'll probably take a look at it...

thanks
        Lorenzo

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