Steel Bank Common Lisp

Implementation of programming language Lisp

One of the most popular Common Lisp compilers.

Links:

Examples:

CamelCase:

Example for versions Corman Common Lisp 3.0, SBCL 1.0.1, clisp 2.47 
(defun camel-case (s)
  (remove #\Space 
          (string-capitalize
           (substitute #\Space nil s :key #'alpha-char-p))))

(princ (camel-case (read-line)))