I used JEP in another project years ago. Didn't have any issues with it
and I recall it was simple to use.
I see that it's rather pricey now - looking at the project, we were using
vers. 2.2. Not sure what their pricing model was back then...
Steve
On Tue, 5 Oct 2010, Kieran Kelleher wrote:
Rather than reinvent the wheel, I am trying to find a real simple library or
java class that will just do boolean expression only parsing and allow me to
evaluate the value of the symbols to true or false (via callback or sth like
that)
For example and expression might look like this:
"(canViewFood && canEatFood) || (canBuyFood && !canCookFood)"
I want a lib or java class that will walk the expression, calling my method to
evaluate whether each symbol (canViewFood, canEatFood, etc.) is true or false
which logically would turn the expression into something like this:
"(true && true) || (false && !true)"
and then evaluate the entire expression to be true or false.
Possible candidates:
https://javacc.dev.java.net/
http://sourceforge.net/projects/jep/
Anyone have experience with this kind of application requirement and would
share opinions and/or experiences?
Regards, Kieran
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