Re: How to distinguish b/n a scalar and a node-set having a single textnode?

[Mike Brown <mike at skew dot org>]

Dimitre Novatchev wrote:
> I am trying to determine whether the value of a parameter is a scalar
> or a node-set, and to do so without using extension functions (I
> consider node-set() to be "standard", as it will be in XSLT 1.1).
> 
> The only problemetic case is:
> How to determine whether what seems to be a node-set having a single
> text node is actually a node set or whether it is a scalar (the value
> of the text node).

A parameter is going to be one of the 4 object types in XPath: boolean,
number, string, node-set, or the object type introduced in XSLT: result
tree fragment. There is no concept of 'scalar'.

I don't think there is a way to test for the type of object. The few
operations that are permissible on any type of object do not provide
helpful info. 

   - Mike
____________________________________________________________________
Mike J. Brown, software engineer at         My XML/XSL resources:
webb.net in Denver, Colorado, USA           http://www.skew.org/xml/


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