[Xpath-ng] Proposal for definition of values/lists

[Robin Berjon]

David Rosenborg wrote:
>>I have a feeling that we'll have problems having nested lists if a
>>value is equivalent, at the data model level, to a list with a single
>>item that is that value. If we only had flattened lists, as in XPath
>>2.0, then I don't think this would be a problem.

Do you have an example of the kind of problem you think it might cause?

> I agree, it should be defined per function how list flattening is performed.

I have concerns that this might make the language harder to remember. If I feed 
a list to a function, I generally don't want to look up the function's docs to 
know whether it'll understand (('foo')) as (<list>), as ('foo'), or as 'foo'.

-- 
Robin Berjon <robin.berjon at expway.fr>
Research Engineer, Expway
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