MiniLisp server extension in RacerPro 2.0::
A way to add customized functionality to RacerPro 2.0 is to define server functions in "MiniLisp". Here we explain how to add the "(say-hello-to)" example which is supplied also as a (pre-compiled) server plugin. In the examples archive we also added a Sudoku example implemented with MiniLisp.
As said, you can also implement this new simple server function using MiniLisp. You will not need Allegro Express then. Writing server extensions in MiniLisp is easier, but the expressivity of the language is limited in order to ensure termination and also, native plugins are executed faster than MiniLisp functions.
Enter the following in the Shell Tab of RacerPorter:
[1] ? (define minilisp-say-hello-to (name)
(format nil
"Hello ~A, this is RacerPro ~A Build ~A. How are you today? This is
your first MiniLisp server extension!"
name
(get-racer-version)
(get-build-version)))
[1] > minilisp-say-hello-to
The function can now be evaluated:
[2] ? (evaluate (minilisp-say-hello-to "Michael"))
[2] > "Hello Michael, this is RacerPro 2.0 Build 2009-06-03. How are you
today? This is your first MiniLisp server extension!"
However, it is not yet part of the server API and thus not recognized outside of evaluate:
[3] ? (minilisp-say-hello-to "Michael")
[3] > (:ERROR "Illegal operator in (minilisp-say-hello-to Michael)")
You will have to decalre the function as a server function as follows to make it become part of the RacerPro API:
[4] ?(server-function minilisp-say-hello-to)[4] > t [5] ?(minilisp-say-hello-to "Michael")[5] > "Hello Michael, this is RacerPro 2.0 Build 2009-06-03. How are you today? This is your first MiniLisp server extension!"