XSchema: Sections 5.0 and 5.1

[Ron Bourret]

Rick Jelliffe wrote:

> 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.

Do you mean that instead of using:

<?XSchema SYSTEM="foo.xsc" ?>
<foo>
...
</foo>

we should use something like:

<foo XSchemaSystem="foo.xsc">
...
</foo>

A good idea, but I don't think it will work for us.  We accept an arbitrary 
number of XSchema PI's, so there is no way to name the attributes.

> 
> 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.

I don't understand what you mean.  A PI has a target by definition, but I don't 
know how this indicates syntax.

-- Ron Bourret

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