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Re: [Matlab-emacs-discuss] Debugging, tab completion in matlab-shell?
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From: Leo A. <dn...@gm...> - 2010-03-09 00:18:04
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Eric,
Thanks for your response.
Regarding matlab-shell-collect-command-output -- it prints the
following to the messages buffer: save-excursion: Text is read-only.
So it looks like for some reason it fails to delete the output and
bails.
I have no idea what's going on with errors not being converted to
links -- but perhaps something similar is preventing the code from
modifying the buffer?..
But the matlab shell buffer itself is not read-only (buffer-read-only
is nil; using (barf-if-buffer-read-only) has no effect...)
Any ideas on what might be happening?
--Leo
On Mon, Mar 8, 2010 at 8:43 AM, Eric Ludlam <Eri...@ma...> wrote:
> Hi,
>
> I gave this a quick run and found that it was working as I expected still, and I have the CVS version of matlab.el, with no pending changes.
>
> When "tab" is pressed, it should split the window, and display the completions in a separate buffer, independent of the matlab-shell buffer. It will also do the completion if there is only one option. The misc text you quoted below is what matlab-shell does under-the-covers to get the completion list.
>
> It works internally by flipping into a "capture some text" mode, then back out again when the capture is done, or when another prompt ">>" is shown again. K prompts "K>>" and student prompts "EDU>>" should also work.
>
> It will also key off of carriage returns, and a few other things to try and distinguish between text to be captured, text to turn into links, and regular text.
>
> I'll take a guess that some bit of text has put it into a bad state. Here are some possibilities:
>
> If you have some non-standard prompt, see line 4392 where comint-prompt-regexp is set. There are a few other hard-coded prompts around too.
>
> If the error text is somehow "new", or contains bad text, look at matlab-shell-render-errors-as-anchor, or matlab-shell-render-html-as-anchor, and the regular expressions that go into those.
>
> Lastly, there is matlab-shell-collect-command-output, which captures output, which sends a command, then spins waiting for a prompt to come up. This is exiting early w/ your tab completion. Perhaps there is an issue with carriage returns?
>
> Good Luck
> Eric
>
> -----Original Message-----
> From: Leo Alekseyev [mailto:dn...@gm...]
> Sent: Friday, March 05, 2010 11:22 PM
> To: mat...@li...
> Subject: [Matlab-emacs-discuss] Debugging, tab completion in matlab-shell?
>
> Hi all,
> I recently started using matlab-emacs (with matlab-shell) on a more
> regular basis, and I am reasonably happy with the workflow -- but I am
> also seeing some anomalies, in particular with debugging and
> tab-completion.
>
> First, if I encounter an error during execution, the offending file
> name does not turn into a link (like it does using Matlab GUI), which
> I believe should also be happening here. This also appears to break
> the "go to last error" functionality: if there are links anywhere else
> in the command window (e.g. as a result of "help" command) the "go to
> last error" will follow the link e.g. to the documentation page,
> ignoring the error. (If there aren't links, then it will jump to the
> error line in the offending file, but if I've run "help" on any
> command, the go-to-last-error is now broken for this session). I
> would really appreciate pointers on how I might troubleshoot this --
> the behavior is clearly broken.
>
> Second (minor) issue is that tab completion (e.g. typing test<tab>)
> dumps the following to the buffer:
>>> matlabMCRprocess = com.mathworks.jmi.MatlabMCR
> matlabMCRprocess =
> com.mathworks.jmi.MatlabMCR@7deb41d6
> >> matlabMCRprocess.mtFindAllTabCompletions('test'), clear('matlabMCRprocess');
> ans =
> java.lang.String[]:
> 'test'
> 'test_step_by_step'
> 'test_trainlm_gradient'
> 'testm'
> 'testobjectiveinfo'
> 'testscript
>
> It this the intended behavior?.. Would it be possible to just display
> stuff after java.lang.String[]?..
>
> Relevant versions: GNU Emacs 23.1.50.1 (x86_64-pc-linux-gnu), Matlab
> 7.8.0.347 (R2009a) 64-bit (glnxa64), latest version of matlab-emacs
> from CVS.
> I'd appreciate any pointers regarding the above!
> Thanks,
> --Leo
>
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