XSchema: Sections 5.0 and 5.1

[Rick Jellife]

Chris Maden ¼g¹D¡G

> [Ron Bourret]
>
> > 1) Are there any conventions in PIs for use/no use of equals signs?
>
> Not formally, but the trend (in the XML declaration, the old PI-based
> namespace proposal, and the experimental stylesheet PI) is towards
> attribute-like syntax.  It makes processing a bit easier; your
> expression language can retrieve information about a PI in the same
> way it retrieves information about attributes.

Because PIs are relatively under-defined (so you can plonk inany old thing you
want) it makes them difficult for DOM or XLL
to say much useful about: if you use an attribute-like syntax
then at least you may have a fighting chance that future common
tools will be able to examine them and use them.

But, of course, piggy-backing PIs onto elements using attributes
is probably always a preferable option, if your PI structure can
matches the start-tag locations.

Even if you use attribute-like syntax, PI values are still just
text strings, from the XML viewpoint.  Having a target (notation)
to indicate the syntax of the PI is a great headstart in labelling.

Rick Jelliffe


xml-dev: A list for W3C XML Developers. To post, mailto:xml-dev at ic.ac.uk
Archived as: http://www.lists.ic.ac.uk/hypermail/xml-dev/
To (un)subscribe, mailto:majordomo at ic.ac.uk the following message;
(un)subscribe xml-dev
To subscribe to the digests, mailto:majordomo at ic.ac.uk the following message;
subscribe xml-dev-digest
List coordinator, Henry Rzepa (mailto:rzepa at ic.ac.uk)