Thank you Clinton,

That is good to know. It means I can use the same methodology as with 
normal string scanning.

regards

Bruce Rennie

On 17/04/17 00:25, Jeffery, Clint (jeffe...@uidaho.edu) wrote:
>
> Bruce,
>
>
> There are two ways to use the interesting new pattern type.  The ?? 
> operator starts a new string scanning environment to evaluate a pattern.
>
> The unary = operator has been extended to accept a pattern argument, 
> and matches it at the position within the current string scanning 
> environment. So the answer to your question is yes ... for the =p 
> operator.  The s??p operator resets the position to 1 to do its job, 
> and restores the current scanning environment after it is finished.
>
>
> Clint
>
> ------------------------------------------------------------------------
> *From:* Bruce & Breeanna Rennie <bren...@dcsi.net.au>
> *Sent:* Sunday, April 16, 2017 6:39:25 AM
> *To:* Unicon group
> *Subject:* [Unicon-group] Question regarding pattern matching
> Good evening to all,
>
> Just a simple question, which doesn't appear to be answered in UTR18.
> Are &subject and &pos the basis on which pattern matching is done? Can
> we set &pos to be at any valid position within the pattern?
>
> regards
>
> Bruce Rennie
>
>
>
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