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   Re: SAX2: Proposed alternative DTD interface

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  • From: David Megginson <david@megginson.com>
  • To: xml-dev@ic.ac.uk
  • Date: Sat, 27 Mar 1999 15:12:03 -0500 (EST)

MikeDacon@aol.com writes:

 > Although most DTDs will be short, it seems that the event-based
 > interface will still be beneficial for large DTDs and
 > small-footprint applications that cannot afford the memory of
 > receiving the entire DTD implementation object.

It's worthwhile, perhaps, to ask whether there will be many XML
applications that

a) require a small footprint;
b) need DTD information; and
c) can use the information in a streaming format.

Any kind of DTD-driven editing tool needs to store the DTD in some
kind of a persistent structure, and I imagine that most XML processing 
on small clients will not worry much about DTDs at all.

To continue playing devil's advocate (since I don't really know which
alternative I prefer), I'll also point out that even the largest DTDs, 
like TEI or DocBook, would measure their memory requirements in
kilobytes rather than megabytes; and even-based API makes sense for
the document itself because there is not known limit to an XML
document's size.

All the best,


David Megginson                 david@megginson.com

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