+
+(defpackage #:clnl-model
+ (:use :common-lisp)
+ (:export
+ #:execute-button #:default-model #:read-from-nlogo #:world-dimensions #:widget-globals #:code
+ #:buttons #:forever-button-on #:switches #:view #:interface #:set-current-interface #:set-callback)
+ (:documentation
+ "CLNL Model
+
+The representation, parsing, and serializing of NetLogo model files, including
+all of the sections, and subsections held within. This package houses not only
+the code to read and write .nlogo files, but also the living state of the model
+as clnl runs."))
+
+(defpackage #:clnl-extensions
+ (:use :common-lisp)
+ (:export #:load-extension #:prims)
+ (:documentation
+ "CLNL Extensions
+
+The loading and handling of extensions to CLNL modeled after the way that
+NetLogo handles extensions.
+
+Extensions are defined as Common Lisp systems (under asdf) that export
+the primitive PRIMS. The name of the asdf system is defined to be the
+name of the extension prepended by CLNL-EXTENSION-, such that for a hypothetical
+extension ARRAY, the name of the asdf system would be CLNL-EXTENSION-ARRAY
+and found through conventional asdf means. The package that the required
+functions are symbols in should be the same as the asdf system."))
+
+(defpackage #:clnl-default-model-package
+ (:use :common-lisp)
+ (:shadow #:go))