Re: [MacPerl] MacPerl, Mac OS 8, and AppleScript

[John W Baxter <jwblist@olympus.net>]

<x-flowed>At 19:24 +0100 2/23/99, Matthias Neeracher wrote:
> In article 
> <3.0.3.32.19990223115812.00f52008@mailhost.cam.harlequin.co.uk>, 
> Peter Westlake <peter@harlequin.co.uk> writes:
>> Is MacPerl 5.2.0r4 compatible with Mac OS 8.1 and 8.5.1?
>
> Definitely. It was *developed* under 8.1, and I run it daily under 8.5.1.
>
>> When I run the script the second time,
>> it crashes almost at once. This is the MPW tool version of
>> Perl 5.2.0r4, with MPW Shell 3.5d6, running on Mac OS 8.1 and
>> 8.5.1 (most of the testing was done on 8.5.1).
>
> I've seen this before and it seems to be related to MPW. Last time I tried to
> track it down, the problem disappeared, and I'm not naturally given 
> to running
> AppleScripts. I'll have another look.

Running the MPW command
flush
(no parameters) between executions of the MacPerl script in MPW 
(/Toolserver) might be useful, at least to provide information. 
flush removes cached MPW tools from memory, so that the next 
execution would have a fresh start.

If flush helps, one might suspect a global variable which perhaps shouldn't be.

  ---------
I'm also a little concerned about the "bare"
   display dialog "..."
command in the script.  It would be interesting to direct that to 
some application, such as the ever-handy Finder, to see whether the 
behavior changes.  As is, it should be running in the context of the 
MacPerl runtime app (I think)...and the presence of both the MacPerl 
tool and the MacPerl runtime on the machine might somehow not like 
that.  Putting the display dialog "..." inside a tell app "Finder"... 
block is a quick test...but I'm leaning more toward the effects of 
flush.

   --john
--
John Baxter   jwblist@olympus.net      Port Ludlow, WA, USA
Give a man a fish and you feed him for a day.  Teach him to fish,
and you get rid of him for the weekend.

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