[Octave-bug-tracker] [bug #31895] error: run: file must exist and be a valid Octave script file

[Ben Abbott]

Follow-up Comment #2, bug #31895 (project octave):

Looks like the error given by run.m is making an improper inference as to
what is wrong.

If the example below is run as a script ...


mfile = "test.m";
if (exist (strcat (pwd, filesep, mfile, "file")))
  delete (mfile)
endif
fid = fopen (mfile, "w");
fprintf (fid, "x = 0:0.1:10;n")
fprintf (fid, "plot (x, sin(x), x, cos(x))")
fclose (fid);
eval (mfile(1:end-2))


I get the error below.


error: Invalid call to test.  Correct usage is:

 -- Function File:  test NAME
 -- Function File:  test NAME quiet|normal|verbose
 -- Function File:  test ('NAME', 'quiet|normal|verbose', FID)
 -- Function File:  test ([], 'explain', FID)
 -- Function File: SUCCESS = test (...)
 -- Function File: [N, MAX] = test (...)
 -- Function File: [CODE, IDX] = test ('NAME','grabdemo')


If a "rehash" is added between "fclose(fid)" and "eval(...)", the script runs
without error.

Perhaps the error handling should rely upon lasterror?


[msg, msgid] = lasterr;
error (msgid, msg)



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