Re: variable with document() reference
> I really should know the answer to this, but I can't seem to get a handle on it. No you really shouldn't know the answer:-) Whether or not document() is used it is _unspecified_ whether a variable is evaluated when it is defined, when it is first used, or every time it is used. In practice XSLT processors deploy different heuristics to try to get optimum benefits by taking different choices at different times. One of the benefits of side effect free declarative processing is that it gives optimisers this freedom. In practice for document() the thing usually gets saved (whether or not you use a variable to explictly save it) as the XSLt spec says that if you call document() twice for the same URI then you should get the same result, and the only way an XSLT processor can reliably ensure that is to cache the results of calling document(). David ________________________________________________________________________ This e-mail has been scanned for all viruses by Star Internet. The service is powered by MessageLabs. For more information on a proactive anti-virus service working around the clock, around the globe, visit: http://www.star.net.uk ________________________________________________________________________
PURCHASE STYLUS STUDIO ONLINE TODAY!
Purchasing Stylus Studio from our online shop is Easy, Secure and Value Priced!
Download The World's Best XML IDE!
Accelerate XML development with our award-winning XML IDE - Download a free trial today!
Subscribe in XML format