[Om] Content-dictionary notations draft

[Paul Libbrecht]

There has been a discussion with David Carlisle that we might need to  
open.
He indicated a few places where, indeed, the n-ary approach was too  
limited.
Including a+-b and  d^2/dxdy f(x).
This was in comparison to parts of ctop.xsl.

I concluded that some fine features of ctop will not be reachable by  
such a declarative infrastructure (which yields exchangeability).

However, I discovered that a simple extension of n-ary by allowing  
several arguments to its symbol in the prototype and parallelize this  
in the rendering could be interpreted as an alternative... that  
covers most of the cases above.

As for the quality of the specification, I know it is weak thus far  
and for good reasons... we discuss and add features to it...

paul


Le 22 mars 07 à 12:08, W Naylor a écrit :
> 2/ The second point is to do with nary functions, even-though these  
> are
> considered I believe that their treatment is oversimplified. What  
> happens,
> for example, if there are parts of the presentation which have some
> implicit nature, but also some dependant nature, e.g. the 0 above and
> below the diagonal of a diagonal matrix, what about the below diagonal
> elements of a skew matrix, again my solution was using template  
> functions
> (as indexing functions, and a combination of this and solution 1 would
> work for the second example). These solutions are described in the  
> second
> paper, but again not normative.

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