Placement of the oasis-xml-catalog PI

[Norman Walsh <ndw@nwalsh.com>]

/ John Cowan <jcowan@reutershealth.com> was heard to say:
| Norman Walsh wrote:
| 
| > Now I think I do. I've looked over the SAX API again and I don't see
| > how the processor can tell when the <!DOCTYPE declaration has been
| > encountered...
| 
| Well, the first time that resolveEntity is invoked (if it ever is),
| the DOCTYPE declaration has definitely been reached.  So if the
| PI always comes before the DOCTYPE declaration, then it is guaranteed
| to have been processed before the first need to resolve anything.
| 
| IIRC we actually require the PI to come before anything that
| needs catalog resolution, such as a stylesheet link.

I'd like to express that requirement differently: the PI has no effect
on the resolution of external identifiers or URIs that occur before
the PI.

I don't see any particular advantage that's gained from making it
illegal to put the PI in other locations.

                                        Be seeing you,
                                          norm

-- 
Norman.Walsh@Sun.COM   | To what excesses will men not go for the sake
XML Standards Engineer | of a religion in which they believe so little
Technology Dev. Group  | and which they practice so imperfectly!--La
Sun Microsystems, Inc. | Bruy\`ere