'''[http://www.eiffel.com/%|%Eiffel]''' is a pure object-oriented language,
developed by Bertrand Meyer in the 90's. It resembles [Ada] a bit. One thing to
note about Eiffel is that it is strongly-typed, has a strict philosophy about
what can and can not be done and that it requires a lot from compilers.

Some keywords:
   * Supports and initiated the idea of ''Design by contract'' - pre- and postconditions, loop variants etc.
   * Has an elegant model for multiple inheritance
   * Has an impressive semantic model to back up what is going on during object creation and manipulation
   * Has had garbage collection built in from the early beginnings

In short, it is the "ideal" OO language (ideal, but not the most widely used or known).

Its home: [http://www.eiffel.com] 

The best-known book: B. Meyer, Object-oriented software construction, Prentice-Hall, 1988

-- [AM]

----


http://www.purl.org/NET/Tcl-FAQ/part1.html says:

D. Eiffel

mailto:stephan@cs.tu-berlin.de  (Stephan Herrmann) says:

... [[the tclish package provides]] the marriage of two very different
principles by means of combining two programming languages into a
hybrid program architecture.

There are three classes for the user - tcl interpretor, tk application,
and tk window.  See ftp://hepunx.rl.ac.uk/pub/eiffel/tclish for
details.

===none
 What: [TclEiffel]
 Where: http://www.eiffel-forum.org/archive/bergmeyer/tcl-eiffel.htm 
 Description: A GUI extension to SmallEiffel 0.80.  Based on Tcl/Tk 8.0.
        Works on Linux and on Windows 95 with CygWin32.
 Updated: 10/1998
 Contact: Unknown (Joachim Bergmeyer)
===
===none
 What: [tclMIDI]
 Where: ftp://ftp.boogie.com/pub/midi/
        ftp://ftp.procplace.com/pub/tcl/sorted/apps/tclmidi/4.1/
        http://madonna.me.berkeley.edu/~greg/tclmidi/
        ftp://xor.com/pub/midi/tclmidi-3.1.tar.gz
        ftp://ftp.sterling.com/usenet/comp.sources.misc/packages/tclm/
 Description: Tclm is Tcl extended with dynamically loadable standard MIDI
        file manipulation commands.  It is designed for creating and editing
        standard MIDI files.  With the proper device interface it can also
        be used to play and record MIDI files.  This runs on Unix
        and Windows.  It comes with a device driver to interface
        with a few types of MIDI cards (MPU401, MQX32, Gravis UltraSound
        and SoundBlaster) and also supports using your
        serial port as a MIDI interface.
        The new maintainer of this code has rewritten the original Tclmidi
        in Eiffel.  It requires Tcl 8.x and SmallEiffel -0.79, midi-eiffel.
        The latest version of tclmidi is v4.1 and the latest version of
        midi-eiffel is v1.1
 Updated: 09/1999
 Contact: mailto:durian@boogie.com (Mike Durian)
===
===none
 What: [Tk for SmallEiffel]
 Where: http://home.pages.de/~jbergmeyer/
 Description: Small extension for SmallEiffel which provides a GUI
        by connecting to a Tcl/Tk interpreter via a socket class.
 Updated: 10/1998
 Contact: mailto:jbergmeyer@owl-online.de (Joachim Bergmeyer)
===
===none
 What: [Omo]
 Where: http://hepunx.rl.ac.uk/packages/omo.html
        http://hepunx.rl.ac.uk/pub/packages/omo.tar.Z
 Description: A design and reverse engineering tool able to accept and
        generate Eiffel code. It supports a class model.
 Updated: 09/1998
 Contact: mailto:S.M.Fisher@rl.ac.uk
===
===none
 What: [eiftcl]
 Where: ftp://ftp.procplace.com/pub/tcl/sorted/packages-7.6/devel/eiftcl.tar.gz
 Description: Provide basic facilities for combining the programming
        languages Eiffel and Tcl into a hybrid program
        architecture.
 Updated: 10/1998
 Contact: mailto:stephan@cs.tu-berlin.de (Stephan Herrmann)
===
===none
 What: [Gweld-TclTk]
 Where: http://www.eiffel-forum.org/archive/tcltk/
 Description: An Eiffel widget library, using Tcl as Eiffel classes.  Works with
        SmallEiffel 0.86 and ISE Eiffel 4.0.  Uses Tcl 4.2.
 Updated: 10/1998
 Contact: Unknown (Roy Phillips)
===


** See Also **

   [SCOOP]:   Simple Concurrent object-oriented programming, a component of Eiffel

   [Eiffel-like invariants]:   Invariants in Tcl


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