J7 GTK supports isigraph and gl2 even without gtkwd. For the grid
addons, gtkwd should already support almost completely.  Please
elaborate your problems with J701.

On a quick glance, I found your dissect uses richedit control which
is MS Windows specific.  Does it also run on J602 linux/mac?

Пт., 28 дек. 2012, Henry Rich писал(а):
> I have written a grid-based application that displays the execution
> of a J sentence in a 2-D grid and allows you to poke around and see
> what happened.  I hope that this will speed up the learning curve for
> new J users.  It is a revolutionary way to view J execution.  J is
> one of the
> few languages where such a display would work, and it might help
> users overcome the barrier of visualization.
> 
> The package is debug/dissect, downloaded from Package Manager.  It
> works only for J6, and that is why I am asking for a collaborator.
> If it just had a better UI, with little boxes and arrows instead of a
> grid...
> 
> When you download the package, make sure you update your base
> library, which has updates needed for dissect.
> 
> Once you have loaded the package, you can try it on sentences.  Here
> is one from recent Forum traffic:
> 
>    20 5 0(*`%/"2@(,: (%:@* -.))@((,: , 1"1) % +/@[))10
> 
> clear, eh?  But maybe you'd like to see it in 2D:
> 
>    ds '20 5 0(*`%/"2@(,: (%:@* -.))@((,: , 1"1) % +/@[))10'
> 
> You can click on a cell to get more detail, or CTRL-click to get more
> detail for the cell and all its ancestors.  With detail, the shapes
> are shown, with a slash separating the shape from the frame.  When
> there is a modifier with a frame, you will get a 'selector' - a
> bright green box where you can enter the indexes of the cell you want
> to look at. Double-click the selector to edit it, and when you press
> ENTER the selected operands, and the corresponding result, will be
> displayed.
> 
> Individual verbs that have a frame can be inspected by clicking the
> verb; rank operators can be drilled into by clicking.  You will get
> selectors that you can use to go deeper.
> 
> If your sentence blew up, ds will show you what was happening just
> before the explosion.
> 
>    left =. 3 2;5 1 3;4 6
>    right =. 3 2;4;,4
>    left +&.> right
> |length error
> |   left    +&.>right
> 
> Where did it blow up?
> 
>    ds 'left +&.> right'
> 
> will take you right to the error.
> 
> This is half-finished, pre-alpha code.  I am releasing it because, as
> indispensable as grid has been for prototyping, I think dissect could
> be really great if freed from the formatting requirements of grid.
> If the blocks were placed on the screen in pixel positions rather
> than grid cells, the layout would be more compact and more stable
> during inspection.
> 
> On J6, that would mean managing an isigraph.  As I understand it, J7
> doesn't have isigraph controls, but it sounds like there are other
> graphics features that might do the job.  (The first step might be to
> get the grid version working on J7.)  So I am asking for someone to
> step up and write the screen interface for J7. This would involve
> designing the new look, and then translating my verbs that format the
> display (basically, I have one verb for each J modifier) and handling
> clicks.  I will be working on finishing the engine.  The
> screen-interface code that I am asking for is a small fraction of the
> total code for the project.
> 
> As of now, dissect handles verbs, nouns, and the structural modifiers:
> 
> @ @: & &: &. &.: " ~ ` hook fork
> 
> It also treats ] [ [: as flow control, and removes them from the display.
> 
> Missing are the computational modifiers / ;: ^: etc.  I need to
> handle them one by one: decide the display, decide what selections
> will be supported, then implement.  This is what I will be doing next
> (after I finish fixing display errors and other bugs).
> 
> Even in its skeletal form, dissect can make learning J easier.  I
> will be giving it to my students to try next semester.
> 
> Henry Rich
> ----------------------------------------------------------------------
> For information about J forums see http://www.jsoftware.com/forums.htm

-- 
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