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Re: Reg ex error for in/excludeiripattern (formal doc)

From: Stasinos Konstantopoulos <konstant@iit.demokritos.gr>
Date: Thu, 18 Dec 2008 14:29:08 +0200
To: Phil Archer <phil@philarcher.org>
Cc: Public POWDER <public-powderwg@w3.org>
Message-ID: <20081218122908.GB4021@iit.demokritos.gr>
Corrected in attachment.

s


On Thu Dec 18 11:47:58 2008 Phil Archer said:

> Working through the implementation feature list I've detected an error  
> in one of the regexes (annoying since I could have sworn I've tested all  
> those to destruction already. Ah well, you can never test things too 
> much).
>
> Just above example 4-3 in the Formal Doc [1] the asterisk just before $1  
> in this line:
>
> Else if h matches the regular expression ^\*\.(.*) then let h be  
> ([^\:\/\?\#\@]+\.)*$1 where $1 refers to ^\*\.(.*)
>
> Should be a +.
>
> This is because the IRI pattern *.example.com is meant to match all  
> subdomains of example.com but not example.com itself. In other words you  
> must have at least one ([^\:\/\?\#\@]+\.) before the .example.com -  
> which is what + does (* matches even if there's no subdomain).
>
> Phil.
>
> [1] http://www.w3.org/TR/2008/WD-powder-formal-20081114/#eg4-3


Received on Thursday, 18 December 2008 12:29:53 GMT

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