Re: PIs considered harmful Was: XML-SW, a thought experiment

From: "Elliotte Rusty Harold" <elharo@metalab.unc.edu>

> if you introduce a way to make it
> clear that an XML element can be removed without harm
> (an XML function which elabrates to nothing) then you
> can do everything you want.  The question is whether
> one can go through the method of using PIs for that,
> with their "ignore me" functionality all built in, or whether
> one should add "ignore me" flag to elements.
 
A different take on this is that PIs are to some extent a workaround 
useful because we have schema languages that are closed by default. 
(Well, DTDs, RELAX and XML Schemas are :-)
 
Cheers
Rick Jelliffe