[Octave-bug-tracker] [bug #51586] Creating method handle fails using str2func

[Piotr Held]

URL:
  <http://savannah.gnu.org/bugs/?51586>

                 Summary: Creating method handle fails using str2func
                 Project: GNU Octave
            Submitted by: jsoh425
            Submitted on: Thu 27 Jul 2017 12:07:47 AM UTC
                Category: Interpreter
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Regression
                  Status: None
             Assigned to: None
         Originator Name: Piotr Held
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: Any

    _______________________________________________________

Details:

Although in general creating a function handle fails using the @Class/Method
syntax the 

str2func('@Class/Method')

still worked as of Octave 4.0.3. 

The fix to this seems to be a one-line check. Basically str2func assumes that
is the string starts with '@' that means it is a anonymous function. Checking
if the next non-whitespace symbol is '(' is can be used for disambiguation of
the two cases.

I am attaching a test case that passes on 4.0.3.

In the next comment I will attach my patch.



    _______________________________________________________

File Attachments:


-------------------------------------------------------
Date: Thu 27 Jul 2017 12:07:47 AM UTC  Name: creating_method_handle.m  Size:
222B   By: jsoh425
Test case for the problem
<http://savannah.gnu.org/bugs/download.php?file_id=41353>

    _______________________________________________________

Reply to this item at:

  <http://savannah.gnu.org/bugs/?51586>

_______________________________________________
  Message sent via/by Savannah
  http://savannah.gnu.org/