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
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