Re: [Matlab-emacs-discuss] completion and goto-function in matlab-mode (Doom emacs)

[Haik S. <hai...@ku...>]

Dear Jonathan,

I am running Doom Emacs and had the same issue.  The problem is 
that the temporary output should be removed, but the lines in the 
shell-buffer have a special read-only mode. The work-around is to 
set `inhibit-read-only`.

So what solved it:

(defadvice! inhibit-real-only-a (oldfun &rest r)
  "Temporary remove read-only lines in shell buffer"
  :around#'matlab-shell-collect-command-output
      (let ((inhibit-read-only t)) (apply oldfun r)))

Best regards,
Haik

17.01.2021 20:20 Eric Ludlam <eri...@gm...> kirjutas:
> Hi Jonathan,
>
> I tried using:
>
> M-x matlab-shell RET
> M-x company-mode RET
>
> then @ matlab prompt:
>
>  >> fo
>
> M-x company-matlab-shell RET
>
> to simulate what you have in your stack trace below.  I get a 
> yellow
> popup with completions I expect in it.  I can pick one and it 
> then
> inserts the completion correctly.
>
> I tried this in Emacs 26.3 as installed by Ubuntu, and also 
> 28.0.50 as
> downloaded from git yesterday morning.
>
> I tend to run my Emacs as stock as possible so I don't 
> accidentally
> create dependencies on random tools, so I'm not familiar with a 
> more
> complex company mode setup.
>
> Due to the nature of using MATLAB Shell, I recommend looking at 
> the
> value of `comint-prompt-read-only' to see if that might be 
> involved.  It
> is nil by default in my Emacsen, and matlab-shell doesn't set it 
> because
> I do a lot of fiddling with the buffer in the background. If it 
> were t,
> I would imagine a range of other things not working either 
> though.
>
> That's pretty much all I can think of. Sorry I can't be more 
> helpful.  :(
> Eric
>
> On 1/6/21 5:50 AM, Jonathan Sahar wrote:
>> Hi,
>> I'm still getting the same error message with the updated 
>> version of
>> the repository...
>> the stack trace I get is:
>> ```
>> Debugger entered--Lisp error: (error "Company: backend
>> company-matlab-shell error \"Text is read-only\" with args 
>> (prefix)")
>>   signal(error ("Company: backend company-matlab-shell error 
>>   \"Text is
>> read-only\" with args (prefix)"))
>>   error("Company: backend %s error \"%s\" with args %s"
>> company-matlab-shell "Text is read-only" (prefix))
>>   company-call-backend-raw(prefix)
>>   apply(company-call-backend-raw prefix)
>>   company--force-sync(company-call-backend-raw (prefix)
>> company-matlab-shell)
>>   company-call-backend(prefix)
>>   company--begin-new()
>>   company--perform()
>>   company-auto-begin()
>>   company-manual-begin()
>>   #f(compiled-function (backend &optional callback) "Start a
>> completion at point using BACKEND." (interactive 
>> #f(compiled-function
>> () #<bytecode 0x27b2831>)) #<bytecode 
>> 0x36c7e49>)(company-matlab-shell)
>>   apply(#f(compiled-function (backend &optional callback) 
>>   "Start a
>> completion at point using BACKEND." (interactive 
>> #f(compiled-function
>> () #<bytecode 0x29caa1d>)) #<bytecode 0x36c7e49>) 
>> company-matlab-shell)
>>   company-begin-backend(company-matlab-shell)
>>   company-matlab-shell(interactive)
>>   funcall-interactively(company-matlab-shell interactive)
>> ```
>>
>> and the output in the console is:
>>
>> ```
>> >> emacsdocomplete('all')
>>
>> emacs_completions_output =
>>
>>   java.lang.String[]:
>>
>>     'all'
>>     'allchild'
>>     'allElectrodes'
>>     'allfeasible'
>>     'allMuPADNotebooks'
>>
>> ```
>>
>> which is the same output that I get by running  M-x
>> matlab-complete-symbol, if that helps to make sense of things.
>>
>> Thanks,
>> Jonathan
>
>
>
> _______________________________________________
> Matlab-emacs-discuss mailing list
> Mat...@li...
> https://lists.sourceforge.net/lists/listinfo/matlab-emacs-discuss