(defun compile-script (script-form &key (output-stream nil))
"Compiles the Parenscript form SCRIPT-FORM into Javascript.
-Non-null PRETTY-PRINT values result in a pretty-printed output code.
If OUTPUT-STREAM is NIL, then the result is a string; otherwise code
is output to the OUTPUT-STREAM stream."
(parenscript-print (compile-parenscript-form script-form :expecting :statement) output-stream))