RE: Checking null values in a string

> I wonder if there is some good useful function that checks if 
> a for example variable is empty and in that case replaces it 
> with an empty string. There is one good function in PL/SQL 
> that does this. The NVL function. If there is no value just 
> replace it with an empty string. Is there anything similar in XSLT?
> 

string(@x) 

gives you the value of @x if it exists and an empty string if it
doesn't. Is that what you're after?

Your terminology is a little confusing: what do you mean by null values
in an XML context?

Michael Kay
Software AG
home: Michael.H.Kay@xxxxxxxxxxxx
work: Michael.Kay@xxxxxxxxxxxxxx 


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