Re: [Vtd-xml-users] mixed content?

[Tatu S. <cow...@ya...>]

--- Jimmy Zhang <cra...@co...> wrote:

> I am wondering if there is a easy and quick way to
> get rid of all
> the external entity reference defined in DTD...
> For version 2.0, it would be nice to offer a utility
> that help people
> convert the XML files with external entities to ones
> without...

Could be... but I have to say that properly dealing
with DTDs, and especially entities, is lots of work.
Probably more than 2/3 of work I have done with
Woodstox has had to do with DTD-based features:
dealing with nested input sources, parameter entity
expansions and all related complexities (validity
constraints of DTD itself) is much more complicated
than basic xml parsing. DTD validation itself is not
that hard, it's just building one's usual state
machine (from dragon book or so), although even that
is quite a bit of work.
So I can understand why many parsers just choose to
leave DTDs alone. ;-)

There is no easy way to get rid of general entities;
although perhaps it would be enough to just deal with
common cases (ie. allow plugging in entity handlers
for any unknown entity, and let using app define
expansion, not xml parser).

-+ Tatu +-



 
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