Proposed Additional PositionalExpr

Dear XSLers,

My name is Geoff Nolan and I work for Turn-Key Systems in Sydney
Australia. I'm new to this group, so please forgive any initial faux
pas.

My first contribution is a restatement of a request initially sent to
James Clark. This was a proposal to create two new positional tests,
first-of-group() and last-of-group(), which would indicate whether a
given tag was at the beginning or end of a group of tags of the same
type.

James' prompt and accurate reply follows:
 
> That's not unreasonable.  It would be covered by a
> resolution of the sibling-qual issue, eg instead of:
> 
>   p[first-of-group()]
> 
> one could have
> 
>   p[not(previous-sibling(p))]

This solution seems eminently workable to me and I would like to share
it with the group. I have other questions etc. but will detail them in
separate threads.

Regards,
Geoff Nolan


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