Re: New parser and command line functions

[Rik]

On 03/15/2013 11:08 PM, John W. Eaton wrote:
> On 03/15/2013 06:54 PM, Rik wrote:
>> On 03/15/2013 03:08 PM, John W. Eaton wrote:
>>> Thanks for the info.  I think I see what the problem is now.
>>>
>>> Are you settings graphics_toolkit to fltk?
>> Yup.  I use .octaverc to switch to the fltk toolkit immediately.
>>> Or doing something else that installs a readline event hook callback
>>> function?  I see the crash if I set graphics_toolkit to fltk, but not
>>> otherwise.
>>>
>>> Anyway, the the parser and lexer currently keep track of the local
>>> function scope when parsing by setting the current symbol table scope,
>>> which is global information.  Then if another parser is started (say for
>>> an eval, or parsing any other function as could happen when a callback
>>> function is evaluated for the fist time) the global scope info is reset.
>>>   If that happens while anther parser is active and in the middle of
>>> parsing a function, then a crash like you are seeing can happen.  Oops.
>>>   The fix is to store the scope used for parsing in the parser or lexer
>>> class.  I'll try to take care of that soon.
>>>
>> Good, finally this starts to make some sense.
>
> I checked in the following changeset:
>
>   http://hg.savannah.gnu.org/hgweb/octave/rev/09f0cb9cac7d
>
> I don't see the crash now and "make check" results are the same.  Does it
> fix the problem for you?
Yes, it is gone.

--Rik