Model group ambiguities

MURATA Makoto murata at
Tue Aug 4 04:13:57 BST 1998

James K. Tauber wrote:
> My understanding was that SGML content models have to be deterministic to
> start with in order to avoid problems with automatic reduction to DFAs
> because of and groups, etc.

Prof. Anne Brugemann-Klein strongly believes that this restriction 
is an extremely bad idea.  I would strongly recommend full support of 
non-deterministic content models.  Otherwise, DTD transformation will become 
impossible, since translated DTD's cannot always be captured by deterministic 
content models.

Fuji Xerox Information Systems
Tel: +81-44-812-7230   Fax: +81-44-812-7231
E-mail: murata at

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