Organization: Unlimited Surprise Systems, Berlin
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References: <1995Mar28.225425.29439@rsg1.er.usgs.gov>
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On Tue, 28 Mar 1995, Peter N. Schweitzer wrote:

> I have a DTD with an element like this:
> 
> 
> 
> This means that NAME must contain A and C, and may contain any number
> of B's.  Further, it means that the elements A, B, and C can occur
> in any order (because I used '&' rather than ',' to separate them).
> However, I observe (using sgmls 1.1.91) that if B is repeated, all
> occurrences of B must be together, i.e. I get errors from
That is right. Your content model says:
The parts (A), (B*) and (C) have to appear once and in an arbitrary order.
Try:

      (B*,((A,B*,C)|(C,B*,A)),B*)

Explanation needed?
Anyone who desagrees or has a shorter/easyer content model?

Horst Szillat

email: szillat@berlin.snafu.de
url  : http://www.snafu.de/~szillat/



From rballard@cnj.digex.net Sun Mar 30 10:28:18 1995
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