Announcing XOTcl 1.1.0 ********************** WHAT IS XOTCL? XOTcl is an object-oriented extension of Tcl that was derived from OTcl. In short, XOTcl tries to provide a highly flexible, reflective, component-based, and object-oriented environment. It integrates language support for high-level concepts which are not found in other languages, with reasonable performance. It prevails the Tcl programming style and the dynamic/introspective nature of the language, rather than introducing other language's styles and rigidness (such as C++) into Tcl. CHANGES relative to 1.0.2 are: - New functionality and improvements: * Transitive instmixins (thanks to a suggestion of Neophytos Demetriou): The new version supports a tree of mixins (mixins of mixins); when a mixin-class X has instmixins Y registered, and X is registered as instmixin for a class C, the mixin classes Y are applied to C as well. * Conditional mixins (thanks to a suggestion of Neophytos Demetriou): mixins and instmixins can have now guards similar to filters that define when they should be applied * New composition strategy for (filter- and mixin-)guards: when a guard is defined more than once for the same interceptor the most specific guard is used, the others are overridden. * Creation of sub-objects via parameter: XOTcl's parameter method supports now a switch named "-Class" which can be used to create and configure sub-objects (see tutorial for details) * New predefined method: __unknown This method is called, whenever XOTcl references a class, which is not defined yet (e.g.: Class C -superclass UNKNOWNCLASS) This method is used for Zoran's wonderful ttrace package (for AOLserver and tcl-Threads) * Improved documentation: - extended tutorial (Meta-Classes, Tk, ...) - beautified tutorial (style files, distinction between literals and placeholders, ...) - fixed hundreds of typos * some speed improvements - fixes: * New build system: - per default no shells are built - new configure switches e.g. --with-xotclsh, -with-actiweb --with-all * Fixes for https in connection with some versions of IE * Fixed a few issues with purify and mt (many thanks to Zoran!) * Fixes for proc-scoped variable in connections with mixins * Fixed passing of error codes from constructors * various small fixes and code cleanup - with newer versions of autoconf - various fixes for stubs - improved build under windows - starkit compliance (many thanks to MichaelL@frogware.com) For more details, please consult the ChangeLog MORE INFO General and more detailed information about XOTcl and its components can be found at http://www.xotcl.org Best regards, Gustaf Neumann Uwe Zdun