Questions or comments
Sun Mar 25 17:16:02 2001
It's been a few days since I released the last set of code. I know
that Fare just got back from a trip and a lot of college students on
the list are taking a break. Anyway, I'm wondering who's taken the
chance to look into the Arrow code snapshot, and if so, what
questions you might have about it.
I can definitely tell you where the code is going, at least. Right
now I am working out the addition of a major set of classes to
support categories and lattices and groups: basically algebraic
frameworks. There are some graph types that will complement those
that I will also add.
In addition, Squeak now has a package (not put into the release yet)
that handles the drawing and conceptual management of diagrams with
arrows and comments and notations which is ideal for making a visual
front-end to the Arrow package. (It's also been used for a UML CASE
tool). So I'm working through the process of using that for a
graphical front-end. This will take longer, but once that is done,
Arrows should be generally usable to the average programmer.
A lot of the other plans are detailed in the various TODO notes that
I've put in strategic spots in the source code and the overall
Ultimately, I see this going in the direction of making Arrows
directly usable to perform transformations on data structures, either
partially or in full, through bridges to primitive and derived Squeak
data types, and relying on Squeak for the rest of the support. It
should also be possible to create a mini-programming language for
arrows using a lisp parser (which I discussed 2 years ago or so) with
an interactive command environment, using graphical display to view
That's quite a set of goals, but they are much more definite than
much else I have seen for Tunes, and I've been improving my Squeak
proficiency for it.
What do you think? Does anyone else here have the time and
proficiency to look into helping out with some of these things or
maybe providing some user testing (or most likely something else I'm
not even thinking of which would be even more worthwhile)?