Hi, I'm successfully using JEXL to evaluate formulae that my users write. It works well, but the default behaviour is to ignore any variable that is not defined. I would like it to a) throw an exception and b) provide structured feedback on what variables were unknown.
For instance, if I define "a = 3" and then evaluate the expression "a + b" I get the answer "3". What I want is an exception with a method like: String[] getUnresolvedVariables(); That would give me ["b"] back. I'm quite happy to code the changes myself, but I just wanted to check whether: a) this functionality already exists (I've looked but I can't find it) b) there's a better way of doing this c) anyone can provide any hints about where to start (I'm confident enough to launch into this unaided, but wise enough to know that I will do it better with a little guidance). Cheers, Bill Horsman --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
