[Octave-bug-tracker] [bug #55210] isvarname does not check length of string against Matlab namelengthmax()

[Rik]

URL:
  <https://savannah.gnu.org/bugs/?55210>

                 Summary: isvarname does not check length of string against
Matlab namelengthmax()
                 Project: GNU Octave
            Submitted by: rik5
            Submitted on: Tue 11 Dec 2018 03:43:35 PM PST
                Category: Octave Function
                Severity: 2 - Minor
                Priority: 5 - Normal
              Item Group: Matlab Compatibility
                  Status: Confirmed
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: Any

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Details:

The Matlab version of isvarname checks that the input string is less than
namelengthmax, or it returns false.

Octave implements the function namelengthmax, but internally we do not see any
reason to limit programmers.  Accordingly, we allow Inf length strings (well,
really as much as an octave_idx_type will hold which is a minimum of 2^31-1).

I still don't see that we need to limit programmers, but this is a difference
between the Matlab and Octave versions of this function.




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