On Wed, 22 Dec 2004, Eric Lease Morgan wrote: > What is the expected procedure for diagnosing and documenting > unsupported SRU server features? > gets queries like exact or prox anyway? I suppose I will have to trap > for these kind of queries and return appropriate diagnostics. No? Yup. As Mike says you can either trap them as you walk the tree to build the parsed CQL, or you can do it as you're straversing the branches to process them. (Obviously the first solution will save your server a lot of work, while the second may save you some work) Rob ,'/:. Dr Robert Sanderson ([log in to unmask]) ,'-/::::. http://www.o-r-g.org/~azaroth/ ,'--/::(@)::. Dept. of Computer Science, Room 805 ,'---/::::::::::. University of Liverpool ____/:::::::::::::. L5R Shop: http://www.cardsnotwords.com/ I L L U M I N A T I