Re: eon.el --- object-oriented programming for emacs

[joakim]

Did you look at eieio?

David O'Toole <address@hidden> writes:

> Recently it became clear that I should factor out some common ideas
> that have appeared in most of my emacs lisp programs.
>
> After some Deep Thinking (TM) I decided that what I really want is to
> write object-oriented programs in Emacs Lisp, with a lightweight
> object model and an easy-to-type syntax for method calls and slot
> references. I want persistent objects and a universal browser (based
> on cell-mode) with which one can inspect and manipulate any Eon object
> or object collection (and that would only be the default view.)
>
> The attached code is my first attempt to implement the core ideas.
> (The persistence and UI portions are under construction and will be
> added as extensions later.) Design influences include Smalltalk, CLOS,
> howm-mode, eev-mode, the Categorizing Information Manager, and others.
>
> There is a working example (admittedly not very exciting) at the end
> of the file.
>
> Eon is now the basis for all my other programs, two of which are
> slated for inclusion in Emacs at some future date. Comments and
> criticisms are welcome.
>
> By the way, you don't have to write object-oriented programs to
> benefit from Eon. Instead, you (or someone else) can write a wrapper
> for your existing code, and make it possible for users to browse,
> discover, manipulate, configure, and share objects whose behaviors
> come from your library, without you having to code your user interface
> from scratch.
>
> I think this could also help make the user interfaces of different
> Emacs packages more "discoverable" and more consistent with each
> other. For example, think of how many different programs implement
> their own similar-but-different "dired-style" buffer interfaces (where
> you can place various marks on items in a list and perform operations
> on the marked items.)
>
> Some links to programs in the process of being ported to Eon:
>
>  - The RLX graphical roguelike game engine:
>    http://dto.freeshell.org/notebook/RogueLike.html
>
>  - The cell-mode user interface:
>    http://dto.freeshell.org/notebook/CellMode.html
>
>  - Linkd, the universal annotator/linker thing
>    http://dto.freeshell.org/notebook/Linkd.html
>
> The project page for Eon itself is 
>
> http://dto.freeshell.org/notebook/Eon.html
>
> -- 
> David O'Toole 
> address@hidden
> http://dto.freeshell.org/notebook/
>
>
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-- 
Joakim Verona