Bare-bones interpreter?

[jsnuff1]

Im currently developing a bot program front end using the Alice brain. What i am looking for is a bare-bones interpreter that would  ideally have a function similar to this:

(String *) outputFunction(String *inputString)

where the inputString is simply the users text, and the function would return a string with Alice's response.

Id rather not waste my time trying to hack up one of the interpreter programs and implement my own function that does the above, if there is already an open source project that does this.

Any help is appreciated.