This is the mail archive of the
xsl-list@mulberrytech.com
mailing list .
Re: An issue with XPath 2.0 sequences (Was Re: RE: Muenchian method, and keys 'n stuff)
- From: David Carlisle <davidc at nag dot co dot uk>
- To: xsl-list at lists dot mulberrytech dot com
- Date: Fri, 1 Feb 2002 11:51:29 GMT
- Subject: Re: [xsl] An issue with XPath 2.0 sequences (Was Re: RE: Muenchian method, and keys 'n stuff)
- References: <002f01c1ab09$64785e70$dd6bfea9@pcukmka>
- Reply-to: xsl-list at lists dot mulberrytech dot com
> But I think any set of rules for "null" values leads to
> anomalies,
yes but if (as in SQL, or a three valued logic system) you have a null
value, then you are at least free, when defining the system to specify
soome set of rules for null that make sense.
But Xpath tries to model null by (). Since almost all occurrences of ()
don't come from any nul markup in the source (eg xsi:nil) but rather
just being the empty result of some query, this is bound to lead to
problems.
David
_____________________________________________________________________
This message has been checked for all known viruses by Star Internet
delivered through the MessageLabs Virus Scanning Service. For further
information visit http://www.star.net.uk/stats.asp or alternatively call
Star Internet for details on the Virus Scanning Service.
XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list