1. An object oriented extension for Tcl XOTcl (Extended Object Tcl) is an object-oriented extension which allows read/write introspection of all aspects of the object system, including class/superclass/object relationships. It allows for the use of meta-classes, multiple inheritance as well as other advanced features: - Dynamic Object Aggregations. - Assertions. - Meta-data, to enhance self-documentation of objects and classes. - Per-object mixins, gives objects access to several dynamically defined supplemental classes. - Per-class mixins. - Filters as a means of abstractions over method invocations to implement large program structures, like design patterns. - Dynamic Component Loading XOTcl integrates the Tcl package loading with architectural support for integration with object-oriented constructs. For more information: http://www.xotcl.org/ From Debian 3.0r0 APT