[xquery-talk] Re: zero-length string namespaces URI

[Pierrick Brihaye]

Hi,

Michael Kay a écrit :

>>>>declare namespace local="";
>>>>declare function local:depth($e as node()) as xs:integer
>>
>>What it is supposed to raise now ?
> 
> It will report that there is no binding for the namespace prefix "local".

OK.

>>Could every "built-in" namespace be undeclared ? I mean those in :
>>
>>
>>>      xml = http://www.w3.org/XML/1998/namespace
>>>      xs = http://www.w3.org/2001/XMLSchema
>>>      xsi = http://www.w3.org/2001/XMLSchema-instance
>>>      fn = http://www.w3.org/2005/xpath-functions
>>>      xdt = http://www.w3.org/2005/xpath-datatypes
>>>      local = http://www.w3.org/2005/xquery-local-functions 
>>
>>(see 4.15 Function Declaration.)
>>
>>What would be the sense of undeclaring the xml NS forexample ?
> 
> There's an explicit ban on redeclaring the xml namespace. The others can all
> be undeclared or redeclared.

Thank you Michael. This is now very clear.

Cheers,

p.b.