OMPW provides an abstraction layer for writing Lisp libraries
that can be used in "pure" Common Lisp, but also in the OpenMusic[1]
or PWGL[2] environments.

You can always download the latest version via the link:
http://github.com/kisp/ompw/tarball/master

It defines a macro DEFINE-BOX that expands differently
depending on the current system being used.

For instance

(define-box myadd ((a 1) (b 1))
  "Add A + B."
  (+ a b))

will become:

In pure Common Lisp:

(progn (export 'myadd)
       (defgeneric myadd (a b))
       (defmethod myadd (a b) "add a + b." (+ a b)))

In OM:

(progn (export 'myadd)
       (om::defmethod! myadd (a b)
	 :doc "Add A + B."
	 :initvals '(1 1)
	 :icon 128
	 (+ a b)))

In PWGL:

(progn (export 'myadd)
       (system::pwgldef myadd ((a '1) (b '1))
			"add a + b."
			nil
			(+ a b)))

See the file examples.lisp for more options.

Have fun,
  Kilian Sprotte


Footnotes: 
[1]  http://recherche.ircam.fr/equipes/repmus/OpenMusic/

[2]  http://www.siba.fi/PWGL/

--------------------------------------------------------------------------------

This file is part of ompw.

Copyright (c) 2007 - 2011, Kilian Sprotte. All rights reserved.

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.