Parser compliance

James Clark jjc at
Wed Nov 17 12:02:26 GMT 1999

Richard Lanyon wrote:
> On 16 Nov 1999, David Megginson wrote:
> > Sean Mc Grath <digitome at> writes:
> > > Does anyone knowledgeable in the minutia of XML compliance care to
> > > list the extant parsers and put them into fully XML 1.0 compliant
> > > and non-XML 1.0 compliant camps?
> > Well, Expat is drop-dead, shoot-your-dog-if-it-ain't conformant...
> Indeed, but it's not necessarily "fully-featured" in that it doesn't
> include external entities

It does actually. It's supported external general entities for a long
time.  The current test version (at also support external parameter
entities including the DTD subset; this is the version being used in
Perl or Mozilla, so it's actually fairly solid.

> and isn't validating

This is true.  XML 1.0 DTD validation isn't very useful for the things
I'm interested in and I want to keep the code size small.  Expat
provides enough information that you could implement a validation layer
on top.


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