JESS: sub-string within an exists CE

[John Hossack]

Hi Everyone,   Does anybody know if it is possible to use the sub-string function within an exists pattern?   Thanks in advance,   John ******************************************************* John Hossack, ScottishPower Research Fellow, Institute for Energy and Environment, University of Strathclyde, 204 George Street, Glasgow, G1 1XW.   TEL:     +44 141 548 2665 FAX:      +44 141 548 4872 EMAIL:  [EMAIL PROTECTED] WEB: http://www.isap.eee.strath.ac.uk **************************************************