[Octave-bug-tracker] [bug #58112] inputParser error while handling cell array as optional argument

[Jukka Hynninen]

URL:
  <https://savannah.gnu.org/bugs/?58112>

                 Summary: inputParser error while handling cell array as
optional argument
                 Project: GNU Octave
            Submitted by: jhynninen
            Submitted on: Sat 04 Apr 2020 05:28:10 PM UTC
                Category: Octave Function
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Unexpected Error
                  Status: None
             Assigned to: None
         Originator Name: Jukka Hynninen
        Originator Email: 
             Open/Closed: Open
                 Release: 5.2.0
         Discussion Lock: Any
        Operating System: Microsoft Windows

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Details:

Following code runs on Matlab R2018b, but gives an error on Octave:

argin = {1, {'test', 1, 2, 3}};
p = inputParser();
p.addRequired('first');
p.addOptional('second', []);
p.parse(argin{:});


error: strcmpi: nonconformant cell arrays
error: called from
    is_argname at line 534 column 11
    parse at line 403 column 9
    inputParser_test at line 5 column 1

_parse()_ method of inputParser.m calls _this.is_argname()_ method, which gets
the cell array as its _name_ argument, and fails to compare a string to a cell
array.

I added a hack into _is_argname()_ to check for _iscell(name)_ to get this
working, but it's obviously not a permanent solution.





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