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

[Eric L. <Eri...@ma...>]

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...