[Octave-bug-tracker] [bug #60524] Octave GUI suddenly exhibits corrupt behaviour

[Cary Scofield]

URL:
  <https://savannah.gnu.org/bugs/?60524>

                 Summary: Octave GUI suddenly exhibits corrupt behaviour
                 Project: GNU Octave
            Submitted by: carys689
            Submitted on: Wed 05 May 2021 03:15:22 AM UTC
                Category: Interpreter
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Unexpected Error or Warning
                  Status: None
             Assigned to: None
         Originator Name: Cary Scofield
        Originator Email: 
             Open/Closed: Open
                 Release: 6.2.0
         Discussion Lock: Any
        Operating System: Microsoft Windows

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Details:

*While using the Octave 6.2.0 GUI on Windows 10, I started getting error
messages very much like the following:*

+verbeatim+
>> what
error: parse error near line 153 of file C:\Program Files\GNU
Octave\Octave-6.2.0\mingw64\share\octave\6.2.
0\m\miscellaneous\what.m

  syntax error

>>>     [~, f, e] = fileparts (nm);
         ^


*I uninstalled Octave and re-installed it, but that did not make a difference.
Rebooting the Windows 10 machine after the re-installation did not fix the
problem either.*

*The command-line version, however, does NOT exhibit this problem:*


octave:7> what
M-files in directory
c:\users\carys\stash\coursera\ml\machine-learning-ex1\ex1:

   computeCost.m           ex1.m                   gradientDescent.m      
plotData.m
   computeCostMulti.m      ex1_multi.m             gradientDescentMulti.m 
submit.m
   costFunctionJ.m         featureNormalize.m      normalEqn.m            
warmUpExercise.m

MAT-files in directory
c:\users\carys\stash\coursera\ml\machine-learning-ex1\ex1:

   token.mat




*More examples:*


Plotting Data ...
error: parse error near line 163 of file C:\Program Files\GNU
Octave\Octave-6.2.0\mingw64\share\octave\6.2.
0\m\plot\util\private\__add_default_menu__.m

  invalid parameter list

>>> function toggle_visibility_cb (hf, ~, hmenu, htb)
                                       ^
>> error: parse error near line 40 of file C:\Program Files\GNU
Octave\Octave-6.2.0\mingw64\share\octave\6.
2.0\m\plot\util\gcbf.m

  syntax error

>>>   [~, fig] = gcbo ();
       ^


*I had been using the GUI for several weeks with no problems whatsoever until
this problem started occurring. This version (6.2.0) is not very usable in its
current state. Matrix operations seem to work okay but trying to run scripts
does not.*

*A fellow student suggested I install an earlier version of Octave (vers.
5.2.0) which I did and I have a working version of the GUI now, but, of
course, we would like to use the latest version for obvious reasons.*






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