[dsdl-discuss] Re: Selection criteira

On Thu, 2004-04-08 at 12:54, Rick Jelliffe wrote:
> Martin Bryan wrote:
> > Eric
> >
> >
> >>Being streamable is what enables applications such as schema guided
> >>editing as demonstrated by James in Philadelphia and I think we should
> >>keep that requirement for most of the parts (including part 4).
>
> I disagree that streamability should be a requirement: may I suggest
> a weaker substitute? That each spec that has a non-streamable default
> also provide a mechanism/option for a streamable version. That is what
> Schematron and my proposal for Part 7 do.

I am not arguing that each part should be streamable, but I respect the
decision of part 2 and the current version of part 4 to have a
requirement of being streamable.

I think that each part should at least document its position in that
respect.

> Things like ID checking are not streamable, in a sense, by the way.

No, but the amount of information to "cache" is usually very low...

> What happens in editor implementations (such as James' and mine)
> that do not build a full DOM is that you elect not to continuously
> report certain constraints. In other words, you end up with a kind
> of progressive validation anyway.

Yes.

> That being said, I personally would be very happy if there were
> a maximal streaming subset of XPath standardized: I am thinking of
> STX that Christian Netwich among others have been working on.
> I would be happy to include bindings to that in ISO Schematron
> and Part 7 Charrep.

Yep.

Eric

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