I think .... wrote: > > I tried the following JESS code from JIA on page 101,
The book is wrong; this didn't work in Jess 6, either. The statement that ordered facts are implemented as unordered facts with a single multislot named __data is a true statement; but the Jess parser knows the difference and won't let you use the explicit __data slot. You must use ordered fact syntax to refer to ordered facts. Hopefully you were just experimenting out of curiosity; there's no useful reason to actually do things this way. --------------------------------------------------------- Ernest Friedman-Hill Advanced Software Research Phone: (925) 294-2154 Sandia National Labs FAX: (925) 294-2234 PO Box 969, MS 9012 [EMAIL PROTECTED] Livermore, CA 94550 http://herzberg.ca.sandia.gov -------------------------------------------------------------------- To unsubscribe, send the words 'unsubscribe jess-users [EMAIL PROTECTED]' in the BODY of a message to [EMAIL PROTECTED], NOT to the list (use your own address!) List problems? Notify [EMAIL PROTECTED] --------------------------------------------------------------------
