Emacs Common Lisp 20070307

Emacs Common Lisp is an implementation of Common Lisp, written in Emacs Lisp. It does not yet purport to conform to the ANSI standard since, among other things, CLOS, and pretty printing are missing.

However, most other Common Lisp features like lexical closures,
packages, readtables, multiple values, bignums, adjustable arrays, etc, are present. At this stage many bugs remain and error checking is sparse.

This implementation provides a Common Lisp environment, separate from Emacs Lisp, running in Emacs. It does not intend to extend Emacs Lisp with Common Lisp functionality; however, Common Lisp functions compile to byte code, so Emacs Lisp functions can call Common Lisp functions and vice versa.

All Emacs Lisp data can be passed unchanged to Common Lisp functions, except vectors, which are used to implement various Common Lisp types not present in Emacs Lisp.

An Emacs Lisp vector should be converted to a Common Lisp vector (SIMPLE-VECTOR or VECTOR) when passed to a Common Lisp function.