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XOTcl 1.1.0

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  • Uwe Zdun
    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
    Message 1 of 1 , Dec 3, 2003
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      Announcing XOTcl 1.1.0


      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
      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 eg. --with-xotclsh, -with-actiweb

      * 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=20

      * 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@...)

      For more details, please consult the ChangeLog

      General and more detailed information about XOTcl and its components
      can be found at http://www.xotcl.org

      Best regards,

      Gustaf Neumann
      Uwe Zdun

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