[xquery-talk] What does [.] do.

David Carlisle davidc at nag.co.uk
Mon Jan 27 07:08:23 PST 2014

On 27/01/2014 14:55, Ihe Onwuka wrote:
> I am using one transformation for two different data sources with two
> different schemas.
> One site may call a resoure readingMaterial another site may call the
> same concept a publication, but they are otherwise similar and you may
> want to treat them as such.
> (xs:string(readingMaterial),xs:string(publication))[.]

I'd probably write that as


or if you know that exactly one of them is always there



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