Re: Non-deterministic content model

Hello Yuichi,

You are right, I made a mistake in the conversion.
The mail by Xan Gregg both has the necessary additional
'?' and avoids duplication of a large part of the
content model. Sorry for the mistake.

Regards,   Martin.


At 00/08/25 19:28 -0400, Yuichi Koike wrote:
>Martin,
>
> > (extension*, long?, img?, remedies?, extension*)
> >
> > And finally, we end up with:
> > ( (extension+,( (long, img?, remedies?, extension*)
> >                 |(img, remedies?, extension*)
> >                 |(remedies, extension*)
> >                )
> >    )
> >   |(long, img?, remedies?, extension*)
> >   |(img, remedies?, extension*)
> >   |(remedies, extension*)
> > )
>
>Interesting. At least one of `long`, `img`, or `remedies` element ]
>always exists. Thus, it is deterministic.
>
>However, in this particular case, we can not use this method,
>because all of `long`, `img`, and `remedies` should be optional.
>If we say "at least one of them must exist", P3P policy writers
>would be confused. So, I think, we will remove the second `extension*`
>elements. (Sorry that the reason is quite P3P-specific).
>
>Thank you.
>--
>Yuichi Koike (koike@w3.org)
>World Wide Web Consortium (W3C)
>Technology and Society Domain
>http://www.w3.org/People/Koike/

Received on Saturday, 26 August 2000 21:26:34 UTC