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John Cowan wrote:
> Joe English scripsit:
>
> > Of course there's probably some niggling technical issue
> > that would make that unworkable; the document would be
> > "invalid" [...] which will cause validating parsers to
> > reject it.
>
> Validating parsers can usually be made to shut up about invalidity.
* ^^^^^^^
> > Non-validating parsers of course won't read the external subset.
>
> *Some* non-validating parsers. There are plenty of NVPs that read
* ^^^^^
> all external entities including the external subset.
The key words here are "usually" and "some".
In my experience, _any_ time an XML document contains
a <!DOCTYPE ...> declaration (except for the minimal --
and useless -- <!DOCTYPE rootElement SYSTEM>) it causes some
sort of interoperability problem. You can _usually_ configure
_some_ parsers to process docment type declarations in a consistent
way that's appropriate to the task at hand, but not always.
--Joe English
jenglish@flightlab.com
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