Re: [Matlab-emacs-discuss] debugging: GUD seems not to be working ?

[newsboost <new...@gm...>]

Hi,

Aah, thank you very much for clearing this out... The information below 
is exactly what I had a little problems with. It seems like once in a 
while, the matlab-mode "loses sync" with indicating where it is 
debugging in the other window... I think the real strength of emacs is 
for people who are good at lisp and who can adjust all kinds of small 
settings... After having used this mode for some time, I'm not 
completely as sure, whether this is beneficial for me or not. The fact 
that it "loses sync" sometimes is a bit annoying. I'm not sure exactly 
how I would like the matlab-emacs-mode to work, if I was good enough at 
making emacs do exactly what I wanted. Maybe it would be a big 
improvement if it never lost this "sync" so I always knew which line I 
was debugging. The good thing about emacs is that I don't need to use 
the mouse so much - however, maybe the matlab editor is ok, after all... 
Not sure what I prefer - let me think about it and maybe get back with 
suggestions/ideas/questions, if something comes to my mind...

Thanks a lot for taking the time to answer me, also! I know people use 
their spare time for such things, so I really appreciate your answer and 
the work that has been done with the matlab-emacs-stuff - thanks!



On 01/15/2013 10:57 PM, Eric Ludlam wrote:
>
> Hi,
>
> The MATLAB command prompt and commands you type in is MATLAB. If you 
> went to an xterm, and type:
>
> matlab --nodesktop
>
> you would get the same interface to MATLAB.
>
> The prompt does not take gud commands.  gud commands would go through 
> Emacs.  For example, you would type:
>
> plot(1:10)
>
> at the >> prompt in the buffer to do some MATLAB thing, or:
>
> dbstop in myfcn
>
> at the same place to get to the K>> prompt.  To do gud things, type:
>
> M-x gud-step RET
>
> to run the Emacs GUD command.   The matlab shell is supposed to add 
> the GUD menu to matlab-mode buffers (where your source code is) when 
> it sees the K prompt.  Unfortunately, MATLAB sometimes is updated 
> faster than I can keep the Emacs mode up to date, so it is possible 
> that broke.
>
> In the matlab shell, you can always use the keybindings though, such 
> as C-c C-n to do a 'next'.
>
> You can do C-h b to key mode bindings.
>
> Eric
>
> *From:*newsboost [mailto:new...@gm...]
> *Sent:* Friday, January 04, 2013 5:45 AM
> *To:* mat...@li...
> *Subject:* [Matlab-emacs-discuss] debugging: GUD seems not to be working ?
>
> Hi,
>
> I'm totally new with matlab in emacs, but it looks great - I found a 
> good source of information here:
>
> http://blog.angjookanazawa.com/post/8815280589/productivity-matlab-emacs-integration-more
>
> What I did, was to use the package software tool (synaptic) in ubuntu 
> to dowload "matlab-support" and I didn't do all the CVS-stuff to 
> download anything other than this (maybe that's what I did wrong?).
>
> Anyway, I tried "M-x matlab-shell" and it seemed to work immediately! 
> What I found looked (=looks) so great and cool. I can now type things 
> exactly as in Matlab and plot graphs from inside of emacs using e.g. 
> "plot(1:5, 2:6)" etc. Last thing that would make me really happy is to 
> have debugging work in a nice way.
>
> I don't have a GUD-menu. I tried "dbstop matlabfile.m linenumber" and 
> then "run matlabfile" (without the .m-extension) and voila, it ran and 
> stopped at that place. So far so good. Then I typed: "dbstep" and I 
> can see that this works too. It steps a line ahead...
>
> But I think I should have a GUD-menu... I tried "M-x gud-step" and it 
> writes:
>
> K>> gud-step
> gud-step
> {??? Undefined function or variable 'gud'.
> }
> K>> if usejava('jvm'), 
> com.mathworks.services.Prefs.setBooleanPref('EditorGraphicalDebugging', false); 
> end
> K>> gud-step
> gud-step
> {??? Undefined function or variable 'gud'.
> }
>
> I want to assign a single key for "next", "step", "continue" etc... 
> Isn't something wrong here?
>
> Shouldn't I have a GUD menu ?
>
> Please comment on this, thank you very much... I would like single-key 
> debugging turned on and then I think maybe I'll get rid of this 
> matlab-stuff and only use emacs in the future (I hope)...
>
> Thanks for ANY comments/ideas/suggestions...
>