If you have debug mode set with
13!:0]1
an error shows the function name and line number of an error. Also
13!:1''
shows you the complete calling stack.
Once you have loaded code and are running it, you could use Dan's
"whereDefined" to figure out the file in which a function was defined:
whereDefined=: 3 : '(4!:4{.;:y) {:: (4!:3''''),<''Source of definition not
found for '',''.'',~y'
There could perhaps be better editor integration at the cost of forcing
everyone to learn a new editor; I prefer the current editor-agnostic
approach as this allows me to use my editor as my session manager.
On Thu, Jan 28, 2010 at 1:52 AM, June Kim <[email protected]> wrote:
> On Tue, Jan 26, 2010 at 4:04 AM, Devon McCormick <[email protected]>
> wrote:
> > Most of these have been addressed, many of them recently.
> >
> > 1. This is peculiar to your problem or implementation of an algorithm.
> > 2. There are numerous ways to deal with this - see
> > http://www.jsoftware.com/jwiki/Scripts/WS Files, (my own) Scripts/File J
> > Variables, or Guides/Persistence.
> > 3. Can't help you here.
> > 4. Spaces are crucial only within quoted strings and between alphanumeric
> > names, much like in most other languages.
> > 5. Try emacs or any other editor.
>
> I think it can't be solved with emacs or any other editor, if you want
> to jump exactly to the point where the problem occured in the code.
> J's error message gives little information, compared to other
> languages(many of them at least provide the filename, and line number
> of the problematic code, and some even provide the column in the line)
>
> > 6. What's so hard about "6!:2"?
> > 7. This is pretty laughable considering how little unnecessary minutiae J
> > has compared to most languages.
> > 8. J is not a symbolic math environment like Maple or Mathematica.
> > 9. You find "plot" too difficult?
> >
> > On Mon, Jan 25, 2010 at 12:51 PM, DIETER ENSSLEN <[email protected]
> >wrote:
> >
> >> 1. 'oom's ie out of memory
> >> 2. not being able to easily continue on previous work, save it and it is
> >> stuck in the wrong J on retrieving
> >> 3. no sweet install on small devices
> >> 4. where are the crucial spaces, and where are there no spaces
> >> 5 not being able to easily edit parts of a program gone wrong
> >> 6 not being able to do timing functions easily
> >> 7 we humans having to worry too much about the minutiae and nitty gritty
> >> instead of leaving this to the computer which are much better at that
> >> 8 no easy integration function, limits
> >> 9 no sweet and easy graphing
> >> ----------------------------------------------------------------------
> >> For information about J forums see http://www.jsoftware.com/forums.htm
> >>
> >
> >
> >
> > --
> > Devon McCormick, CFA
> > ^me^ at acm.
> > org is my
> > preferred e-mail
> > ----------------------------------------------------------------------
> > For information about J forums see http://www.jsoftware.com/forums.htm
> >
> ----------------------------------------------------------------------
> For information about J forums see http://www.jsoftware.com/forums.htm
>
--
Devon McCormick, CFA
^me^ at acm.
org is my
preferred e-mail
----------------------------------------------------------------------
For information about J forums see http://www.jsoftware.com/forums.htm
