http://dspace.mit.edu/handle/1721.1/6946
http://en.wikipedia.org/wiki/Common_Lisp_Interface_Manager
http://www.sts.tu-harburg.de/~r.f.moeller/uims-clim/clim-int...
(ql:quickload 'clim-listener) (clim-listener:run-listener)
And arbitrary objects can take the role of unique values. It's quite convenient, especially considering that Mathematica's language and display system let you put arbitrary expressions anywhere you want (like a 3D plot animation used as the surface texture of a 3D cube).
http://re-factor.blogspot.com/2010/09/visual-repl.html
I've been meaning to write something like Factor's REPL for Clojure, but haven't gotten around to it yet.
In a heterogeneous mix of tools, getting the channel right is a big part of the challenge. Lots of the interactivity is going to be client-specific (i.e. what's possible / attractive in Eclipse is different from Emacs/vim/TextMate), but the channel underneath is a big enabler.
Would love to hear what you have in mind specifically, if only to see if there's a vector I'm not considering that I should be.
Not that it's bad on itself, but the title suggested otherwise.
https://github.com/whalliburton/academy
Edit: And someone who likes dead prez I certainly got a kick out of the hexagram examples. Haven't seen those for a while.
On another note, it's a pleasure to see a bit of the I Ching in there - in the classic Wilhelm/Baynes edition, no less. It is one of the greatest works of civilization. (As for Wilhelm/Baynes: how a translation of a translation could have turned out so well is a mystery. Putting it beside any other I Ching in English is like comparing a Monet to a daguerreotype.)
In the "Definitions" pane at the top, we define three variables, bruce-lee, energy-blast, and terrible-accident. In the "Interations" pane at the bottom (here's the REPL), we compose them together.
Since there's no link to the actual repo in that document.