The ABNF you provided is equivalent to:
( "0" ( "." DIGIT{,3} )? ) | ( "1" ( "." "0"{,3} )? ) and this mean that both
"q=0." and "q=1." OK.
--- En date de : Jeu 18.3.10, Brett Tate <[email protected]> a écrit :
De: Brett Tate <[email protected]>
Objet: Re: [Sip-implementors] Query on qvalue in SIP headers
À: "Brez Borland" <[email protected]>, "prashanth.me"
<[email protected]>, "sip-implementors"
<[email protected]>
Date: Jeudi 18 mars 2010, 16h09
The BNF strangely appears to allow the dot without any following digits.
> -----Original Message-----
> From: [email protected] [mailto:sip-
> [email protected]] On Behalf Of Brez Borland
> Sent: Thursday, March 18, 2010 11:07 AM
> To: prashanth.me
> Cc: sip-implementors
> Subject: Re: [Sip-implementors] Query on qvalue in SIP headers
>
> Hi Prashanth,
>
> I think dot is an "optional", and it should be present only if it is
> followed by digits.
>
>
> Regards,
>
> Brez
>
> On Thu, Mar 18, 2010 at 2:58 PM, prashanth.me
> <[email protected]> wrote:
> > Hi,
> >
> > As per ABNF Grammar of the 'preference' parameter
> > ------------------------
> > preference = "q" EQUAL
> > <http://www.tech-invite.com/Ti-abnf-sip.html#delim> qvalue
> > <http://www.tech-invite.com/Ti-abnf-sip-hf.html#qvalue>
> > qvalue = ("0" [ "." 0*3DIGIT
> > <http://www.tech-invite.com/Ti-abnf.html#core> ] )
> > / ( "1" [ "." 0*3("0") ] )
> > ------------------------
> >
> > Are the below 'qvaule' correct?
> > ------
> > ;q=0.
> > ;q=1.
> > ------
> > I mean, shall dot come without any digits followed by?
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